WO2020156470A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2020156470A1
WO2020156470A1 PCT/CN2020/073928 CN2020073928W WO2020156470A1 WO 2020156470 A1 WO2020156470 A1 WO 2020156470A1 CN 2020073928 W CN2020073928 W CN 2020073928W WO 2020156470 A1 WO2020156470 A1 WO 2020156470A1
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WIPO (PCT)
Prior art keywords
network device
message
positioning
terminal device
access network
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PCT/CN2020/073928
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English (en)
Chinese (zh)
Inventor
陈磊
李秉肇
许斌
王奇
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • This application relates to the field of communication technology, and in particular to a communication method and device.
  • the enhanced service mobile location center provides location services for terminal devices.
  • the E-SMLC can adopt the Observed Time Difference of Arrival (OTDOA) positioning solution, based on the pre-stored geographic location information of each measurement cell and the measurement results reported by the terminal equipment (for example, the terminal equipment pair and each measurement cell The corresponding reference signals are measured, and the obtained reference signal time difference (RSTD) information corresponding to each measurement cell is calculated to calculate the position of the terminal device.
  • OTD Observed Time Difference of Arrival
  • the E-SMLC Since the E-SMLC is located in the core network, when a terminal device reports measurement results and other information, it first needs to send the measurement results and other information to the base station, and then the base station forwards the measurement results and other information to the E-SMLC.
  • next generation communication system for example, the 5th generation mobile networks or 5th generation wireless systems, 5G
  • 5G 5th generation mobile networks or 5th generation wireless systems
  • 5G One of the positioning performances that need to be considered for new radio (NR) systems.
  • NR new radio
  • 5G still considers a centralized positioning architecture. Therefore, there may be a problem of coordination between centralized and distributed structures. At present, there is still a lack of research and corresponding solutions for the coordination of distributed positioning functions and centralized positioning services.
  • This application provides a communication method and device for realizing the coordination of distributed positioning functions and centralized positioning services.
  • a communication method in a first aspect, a communication method is provided.
  • a network-side device for example, a device in an access network or a device in a core network
  • first sends first indication information to a terminal device and the first indication information indicates The type of the first message sent by the terminal device, where the first message is used for a network element with positioning function in the core network or a network element with positioning function in the access network to determine the location of the terminal device, and the first message is the access network
  • the terminal device determines the type of the first message according to the first instruction information, it sends the first message to The first network equipment.
  • the positioning server used to determine the location of the terminal device may be a network element with a positioning function in the core network, for example, it may be an LMF, or a network element with a positioning function in the access network, such as , Access network equipment with positioning function.
  • the first indication information may indicate that the type of the first message is a type that the access network device cannot recognize but the core network device can recognize.
  • the positioning server is a network element with a positioning function in the access network
  • the first indication information may indicate that the type of the first message is a type of a message that can be recognized by the access network device.
  • the terminal device determines the type of the first message according to the first indication information, it sends the first message to the first network device. If the type of the first message is a type of message that can be recognized by the first network device, the first network device can directly determine the location of the terminal device according to the first message, so that the first message does not need to be forwarded, and the forwarding process can be reduced. Latency overhead. Moreover, the coordination of distributed positioning functions and centralized positioning services can be realized through the first indication information.
  • the terminal device determines the type of the first message according to the type indicated in the first indication information; or, the terminal device determines the type of the first message according to the type of the first indication information.
  • the terminal device can determine the type of the first message in multiple ways, which can improve the flexibility of the terminal device.
  • the terminal device determines that the type of the first message is a message type that can be recognized by the access network device; or,
  • the terminal device determines that the type of the first message is that the access network device cannot recognize but the core network device can The type of message identified.
  • the terminal device may parse the first indication information after receiving the first indication information, and determine the type of the first message according to the content indicated in the first indication information, and the implementation is simple.
  • the terminal device determines that the type of the first message is a type of message that can be recognized by the access network device; or,
  • the terminal device determines that the type of the first message is a message type that the access network device cannot recognize but the core network device can recognize.
  • the terminal device can determine the type of the first message according to the type of the first indication information, so that the terminal device does not need to parse the first indication information, which can reduce the processing complexity of the terminal device.
  • the type of the first message is a type of a message that can be recognized by the access network device, and the first message includes the identification of the positioning server and/or the identification of the cell supported by the positioning server.
  • the positioning server may be a positioning function in the access network.
  • the terminal device may include the identification of the access network device and/or the identification of the cell supported by the access network device in the first message to indicate the positioning server to the first network device, To ensure that the positioning server can receive the first message.
  • a communication method in a second aspect, a communication method is provided.
  • a first network device first obtains second indication information, and the second indication information is used to indicate that a positioning server that locates a terminal device is a network with a positioning function in the core network. Or a network element with a positioning function in the access network. Then, after the first network device receives the first message from the terminal device for the positioning server to determine the location of the terminal device, the first network device then performs the second instruction The information determines to process or forward the first message.
  • the first network device may forward the first message to the positioning server after receiving the first message.
  • the second indication information indicates that the positioning server is a network element with a positioning function in the access network
  • the first network device may directly determine the position of the terminal device according to the first message after receiving the first message, so that it is not necessary to forward the first message. Messages can reduce the delay overhead caused by the forwarding process.
  • the coordination of distributed positioning functions and centralized positioning services can be realized through the second indication information.
  • the first network device may obtain the second indication information from the configuration information; or, the first network device receives the second indication information from the second network device; or, the second indication information is predefined .
  • the first network device can obtain the second indication information in multiple ways, which can improve the flexibility of the first network device.
  • the second indication information when the second indication information is a message type that can be recognized by the access network device, the second indication information includes at least one of the following information:
  • the identification of the location server or,
  • the identity of the cell supported by the positioning server or,
  • the identifier of the core network device interacting with the positioning server.
  • the positioning server is a network element with positioning function in the core network or a network element with positioning function in the access network by carrying any one of the above-mentioned multiple kinds of information in the second indication information.
  • the flexibility of the positioning system can be increased.
  • the first network device may determine the positioning server according to the second indication information.
  • the first message sent by the terminal device for determining the position of the terminal device can be processed accordingly to ensure that the positioning function is realized.
  • the first network device may determine the positioning server in multiple ways, which may specifically include but are not limited to the following ways:
  • the first network device determines that the positioning server is the first network device; or,
  • the first network device determines that the positioning server is the first network device.
  • the first network device determines that the positioning server is In addition to the first network device, the network element with the positioning function in the access network, in addition to the first network device, the identification of the network element with the positioning function in the access network and the identification of the positioning server indicated in the second indication information The same; or,
  • the first network device determines that the positioning server is in addition to the first network device and has For the network element with the positioning function, except for the first network device, the identity of the cell supported by the network element with the positioning function in the access network is the same as the identity of the cell supported by the positioning server indicated in the second indication information; or,
  • the first network device determines that the positioning server is a network element with positioning function in the core network; or,
  • the first network device determines that the positioning server is a network element with a positioning function in the core network.
  • the first network device determines that the positioning server is the first network device according to the second indication information, after receiving the first message, the first network device locates the terminal device according to the first message; or,
  • the first network device determines that the positioning server is not the first network device according to the second indication information, the first network device forwards the first message to the positioning server after receiving the first message.
  • the first message can be processed differently, which can increase the flexibility of the first network device.
  • a communication method is provided.
  • a first network device sends a first request message to a second network device, where the first request message is used to request that the serving base station of the terminal device be switched from the first network device to the second network device,
  • the first request message also includes a positioning service switching instruction, which is used to indicate that the terminal device is performing a positioning service, and requesting that the positioning service of the terminal device be switched to the second network device.
  • the second network device After receiving the second indication information, the second network device sends a first response message corresponding to the first request message to the first network device, and the first network device receives the first response message.
  • the first network device that provides services for the terminal device can communicate with the second network device (for example, a network element with a positioning function in the access network or a core network with a positioning function).
  • the second network device for example, a network element with a positioning function in the access network or a core network with a positioning function.
  • the first response message may include but is not limited to the following three ways:
  • the first response message is used to instruct the second network device to locate the terminal device; or,
  • the first response message is used to instruct the third network device to locate the terminal device, and the third network device is a network element with a positioning function in the access network and the core network in addition to the first network device and the second network device; or ,
  • the first response message is used to indicate that a network device other than the first network device is refused to locate the terminal device.
  • the second network device can respond to the first request message according to actual conditions, which can improve the flexibility of the positioning system.
  • the first request message includes the location context of the terminal device, and the location context information is used by the first network device to locate the terminal device;
  • the location context includes at least one of the following information:
  • the first network device is used for auxiliary information for positioning the terminal device.
  • the second network device after receiving the first request message sent by the first network device, can determine the content in the first response message according to various information carried in the first request message, which can improve the first request message. 2. The accuracy of the network device in determining the content of the first response message.
  • the first network device may forward the first response message to the terminal device.
  • the first network device may send the first response message or the positioning-related information in the first response message to the terminal device, so that the terminal device can learn the positioning server for its positioning in time.
  • the first response message if used to instruct the second network device to locate the terminal device, the first response message also includes auxiliary information of the second network device, and the auxiliary information is used for the second network The device locates the terminal device.
  • the information used for positioning by each network device may be different. Therefore, when the positioning server is switched, the new positioning server can carry its auxiliary information for positioning in the first response message. Therefore, after the first network device forwards the first response message to the terminal device, the terminal device can accurately report the positioning message required by the positioning server.
  • the second network device is a network element with a positioning function in the access network in addition to the first network device, and the first network device may send a second request message to the second network device, by The second request message is to obtain capability information of the second network device, where the capability information includes the positioning mode supported by the second network device and/or the positioning accuracy supported by the second network device.
  • the second network device After receiving the second request message, the second network device sends a second response message including the capability information of the second network device to the first network device, so that the first network device determines whether to request the second network device according to the second response message Position the terminal equipment.
  • the first network device may determine whether to request the second network device to locate the terminal device according to the capability information of the second network device after acquiring the capability information of the second network device.
  • the capability information indicates that the second network device can meet the positioning requirements of the terminal device, and the first network device sends a first request message to the second network device to ensure that the positioning server after the handover can also provide positioning services that meet the requirements of the terminal device.
  • the second network device is a network element with a positioning function in the access network in addition to the first network device.
  • the second network device may Send a third request message to the network element with the positioning function in the core network, the third request message is used for the network element with the positioning function in the core network to determine whether to agree to the second network device to locate the terminal device;
  • the network element with the positioning function in the core network sends a third response message to the second network device, and indicates through the third response message whether it agrees to the result of positioning the terminal device by the second network device.
  • the second network device generates the first response message according to the third response message.
  • the second network device can ask the network element with the positioning function in the core network whether it agrees to the switching of the positioning service through the third request message, so that the network element with the positioning function in the core network can pair The positioning service is switched for authentication.
  • the third request message includes at least one of the following information:
  • the identity of the first network device is the identity of the first network device
  • the identity of the server cell where the terminal device is located is located.
  • the second network device can instruct the network element with the positioning function in the core network to switch the positioning service according to various kinds of information, which can improve the flexibility of the second network device.
  • the second network device may be a network element with a positioning function in the core network.
  • the second network device may send a fourth request message to the third network device through the fourth request The message instructs the third network device to locate the terminal device.
  • the third network device may send a fourth response message for indicating whether to agree to locate the terminal device to the second network device, so that the second network device generates the first response message according to the fourth response message.
  • the second network device when the second network device determines to use the third network device to locate the terminal device, the second network device may send an inquiry request to the third network device to determine whether it can receive positioning services, thereby ensuring The success rate of the handover of the positioning service.
  • the fourth request message includes at least one of the following information:
  • the identity of the serving cell where the terminal device is located is located.
  • the second network device can instruct the third network device to switch the positioning service according to various kinds of information, which can improve the flexibility of the second network device.
  • a communication method in the method, a first network device sends a first request message to a second network device.
  • the first request message includes a positioning service switching instruction.
  • the terminal device is in the process of the positioning service, and the second network device may determine whether to receive the positioning service according to the actual situation, and then according to the determination result, send the first response message corresponding to the first request message to the first network device.
  • the first network device that provides services to the terminal device can communicate with the second network device (such as a network element with a positioning function in the access network or The network element with the positioning function in the core network interacts to determine whether to switch the positioning service of the terminal device to the second network device, so as to maintain the continuity of the positioning service when the terminal device is in a mobile state.
  • the second network device such as a network element with a positioning function in the access network or The network element with the positioning function in the core network interacts to determine whether to switch the positioning service of the terminal device to the second network device, so as to maintain the continuity of the positioning service when the terminal device is in a mobile state.
  • the first request message further includes a location service indication, and the location service indication is used to indicate whether to use the second network device to locate the terminal device.
  • the first response message may include but is not limited to the following four ways:
  • the first response message is used to instruct the second network device to locate the terminal device; or,
  • the first response message is used to indicate that the second network device refuses to locate the terminal device, but supports the forwarding of the positioning message, which is used to determine the location of the terminal device; or,
  • the first response message is used to indicate that the second network device refuses to locate the terminal device and refuses to forward the positioning message; or,
  • the first response message is used to instruct the third network device to locate the terminal device, and the third network device is a network element with a positioning function in the core network.
  • the first request message includes the location context of the terminal device and/or the identification of the location server, the location server is used to locate the terminal device, and the location context information is used by the first network device to locate the terminal device ;
  • the location context includes at least one of the following information:
  • the first network device is used for auxiliary information for positioning the terminal device.
  • the first network device may forward the first response message to the terminal device.
  • the second network device is a network element with a positioning function in the access network
  • the first network device may send a second request message to the second network device, and obtain the second network device through the second request message
  • the capability information includes the positioning mode supported by the second network device and/or the positioning accuracy supported by the second network device.
  • the second network device After receiving the second request message, the second network device sends a second response message including the capability information of the second network device to the first network device, so that the first network device determines whether to position the terminal device according to the second response message.
  • the service is switched to the second network device.
  • the first response message if used to instruct the second network device to locate the terminal device, the first response message also includes auxiliary information of the second network device, and the auxiliary information is used for the second network The device locates the terminal device.
  • the first response message is used to indicate that the second network device refuses to locate the terminal device, but supports the forwarding of the positioning message.
  • the device may send the positioning message to the first network device, so that the first network device locates the terminal device according to the positioning message.
  • the second network device may forward the received positioning message to the first network device, and determine the location of the terminal device through the positioning calculation of the positioning message by the first network device, that is, In other words, the second network device can realize the function of positioning the terminal device through the first network device.
  • the second network device may have a positioning function in the core network Sending a third request message to the network element in the core network, the third request message being used by the network element with the positioning function in the core network to determine whether to agree to the second network device to locate the terminal device;
  • the network element with the positioning function in the core network sends a third response message to the second network device, and indicates through the third response message whether it agrees to the result of positioning the terminal device by the second network device.
  • the second network device generates the first response message according to the third response message.
  • the third request message includes at least one of the following information:
  • the identity of the first network device is the identity of the first network device
  • the identity of the server cell where the terminal device is located is located.
  • the beneficial effects of the corresponding implementation in the fourth aspect can be referred to the description of the beneficial effects of the third aspect and its implementation.
  • a communication device in a fifth aspect, includes a processor, configured to implement the method executed by the terminal device in the first aspect.
  • the communication device may also include a memory for storing program instructions and data.
  • the memory is coupled with the processor, and the processor can call and execute program instructions stored in the memory to implement any method executed by the terminal device in the first aspect.
  • the communication device may also include a transceiver, and the transceiver is used for the communication device to communicate with other devices. Exemplarily, the other device is the first network device.
  • a processor and transceiver are included, where:
  • the transceiver receives first indication information, the first indication information is used to indicate the type of the first message sent by the terminal device, the first message is used by the positioning server to determine the location of the terminal device, and the first message is a message that can be recognized by the access network device
  • the type of the message that cannot be recognized by the access network equipment but the core network equipment can recognize, and the positioning server is a network element with positioning function in the core network or a network element with positioning function in the access network;
  • the processor determines the type of the first message according to the first indication information, and controls the transceiver to send the first message to the first network device.
  • the processor determines the type of the first message according to the type indicated in the first indication information; or,
  • the processor determines the type of the first message according to the type of the first indication information.
  • the processor determining the type of the first message according to the type indicated in the first indication information includes:
  • the processor determines that the type of the first message is the type of the message that can be recognized by the access network device according to the type indicated in the first indication information as the type of the message that can be recognized by the access network device; or,
  • the processor determines that the type of the first message is a message that is not recognized by the access network device but can be recognized by the core network device according to the type indicated in the first indication information as a message that cannot be recognized by the access network device but can be recognized by the core network device type.
  • the processor determines that the type of the first message is a message type that can be recognized by the access network device according to the first indication information as a message that can be recognized by the access network device; or,
  • the processor determines that the type of the first message is a message type that is not recognized by the access network device but can be recognized by the core network device according to the first indication information that the access network device cannot recognize but can recognize the message.
  • the type of the first message is a type of a message that can be recognized by the access network device, and the first message includes the identification of the positioning server and/or the identification of the cell supported by the positioning server.
  • a communication device in a sixth aspect, includes a processor for implementing the method executed by the first network device in the second aspect.
  • the communication device may also include a memory for storing program instructions and data.
  • the memory is coupled with the processor, and the processor can call and execute program instructions stored in the memory to implement any method executed by the first network device in the second aspect.
  • the communication device may also include a transceiver, and the transceiver is used for the communication device to communicate with other devices. Exemplarily, the other devices are terminal devices.
  • a processor and transceiver are included, where:
  • the transceiver obtains second indication information, the second indication information is used to indicate that the positioning server is a network element with positioning function in the core network or a network element with positioning function in the access network, and the positioning server is used to position the terminal device;
  • the transceiver receives the first message sent by the terminal device, where the first message is used by the positioning server to determine the location of the terminal device;
  • the processor determines to process the first message or controls the transceiver to forward the first message according to the second indication information.
  • the processor obtains the second indication information from the configuration information; or,
  • the transceiver receives the second indication information from the second network device under the control of the processor; or,
  • the second indication information is predefined.
  • the second indication information is a type of message that can be recognized by the access network device, and the second indication information includes at least one of the following information:
  • the identification of the location server or,
  • the identity of the cell supported by the positioning server or,
  • the identifier of the core network device interacting with the positioning server.
  • the processor determines the positioning server according to the second indication information.
  • the processor determines that the identification of the positioning server included in the second indication information is the identification of the communication device, and the processor determines that the positioning server is the communication device; or,
  • the processor determines that the identifier of the cell supported by the positioning server included in the second indication information is the same as the identifier of the cell supported by the communication device, and the processor determines that the positioning server is the communication device.
  • the processor determines that the identifier of the positioning server indicated in the second indication information is different from the identifier of the communication device, and the identifier of the positioning server is different from the identifier of the network element with the positioning function in the core network, and the processor It is determined that the positioning server is a network element with positioning function in the access network in addition to the communication device.
  • the identification of the network element with positioning function in the access network and the positioning server indicated in the second indication information With the same logo; or,
  • the processor determines that the identifier of the cell supported by the positioning server included in the second indication information is different from the identifier of the cell supported by the communication device, and the processor determines that the positioning server is a network element with positioning function in the access network in addition to the communication device. Except for the communication device, the identifier of the cell supported by the network element with the positioning function in the access network is the same as the identifier of the cell supported by the positioning server indicated in the second indication information; or,
  • the processor determines that the identifier of the positioning server included in the second indication information is the identifier of a network element with positioning function in the core network, and the processor determines that the positioning server is a network element with positioning function in the core network; or,
  • the processor determines that the second indication information includes the identifier of the core network device interacting with the positioning server, and the processor determines that the positioning server is a network element with a positioning function in the core network.
  • the processor determines that the positioning server is a communication device according to the second indication information, the processor locates the terminal device according to the first message; or,
  • the processor determines that the positioning server is not a communication device according to the second instruction information, the processor forwards the first message to the positioning server.
  • a communication device in a seventh aspect, includes a processor, configured to implement the method executed by the first network device in the third aspect.
  • the communication device may also include a memory for storing program instructions and data.
  • the memory is coupled with the processor, and the processor can call and execute program instructions stored in the memory to implement any method executed by the first network device in the third aspect.
  • the communication device may also include a transceiver, and the transceiver is used for the communication device to communicate with other devices. Exemplarily, the other device is the second network device.
  • a processor and transceiver are included, where:
  • the transceiver sends a first request message determined by the processor to the second network device, the first request message is used to request that the serving base station of the terminal device be switched from the communication device to the second network device, and the first request message also includes positioning service switching Indication, the positioning service switching indication is used to indicate that the terminal device is performing a positioning service, and requesting to switch the positioning service of the terminal device to the second network device;
  • the transceiver receives a first response message corresponding to the first request message from the second network device.
  • the first response message may include but is not limited to the following three ways:
  • the first response message is used to instruct the second network device to locate the terminal device; or,
  • the first response message is used to instruct the third network device to locate the terminal device, and the third network device is a network element with a positioning function in the access network and the core network in addition to the first network device and the second network device; or ,
  • the first response message is used to indicate that a network device other than the first network device is refused to locate the terminal device.
  • the first request message includes the location context of the terminal device, and the location context information is used by the first network device to locate the terminal device;
  • the location context includes at least one of the following information:
  • the first network device is used for auxiliary information for positioning the terminal device.
  • the transceiver after receiving the first response message, forwards the first response message to the terminal device.
  • the first response message if used to instruct the second network device to locate the terminal device, the first response message also includes auxiliary information of the second network device, and the auxiliary information is used for the second network The device locates the terminal device.
  • the second network device is a network element with a positioning function in the access network in addition to the communication device, and the transceiver sends a second request message to the second network device, and obtains the second request message through the second request message.
  • Capability information of the network device where the capability information includes the positioning mode supported by the second network device and/or the positioning accuracy supported by the second network device.
  • the transceiver is receiving a second response message from the second network device, where the second response message includes capability information of the second network device;
  • the processor determines whether to request the second network device to locate the terminal device according to the second response message.
  • a communication device in an eighth aspect, includes a processor for implementing the method executed by the second network device in the third aspect.
  • the communication device may also include a memory for storing program instructions and data.
  • the memory is coupled with the processor, and the processor can call and execute the program instructions stored in the memory to implement any method executed by the second network device in the third aspect.
  • the communication device may also include a transceiver, and the transceiver is used for the communication device to communicate with other devices. Exemplarily, the other device is the first network device.
  • a processor and transceiver are included, where:
  • the transceiver receives a first request message from the first network device.
  • the first request message is used to request that the serving base station of the terminal device be switched from the first network device to the communication device.
  • the first request message also includes a positioning service switching instruction.
  • the indication is used to indicate that the terminal device is performing a positioning service, and request to switch the positioning service of the terminal device to the communication device.
  • the transceiver sends a first response message that is determined by the processor and corresponds to the first request message to the first network device.
  • the first response message may include but is not limited to the following three ways:
  • the first response message is used to instruct the second network device to locate the terminal device; or,
  • the first response message is used to instruct the third network device to locate the terminal device, and the third network device is a network element with a positioning function in the access network and the core network in addition to the first network device and the second network device; or ,
  • the first response message is used to indicate that a network device other than the first network device is refused to locate the terminal device.
  • the first request message includes the location context of the terminal device, and the location context information is used by the first network device to locate the terminal device;
  • the location context includes at least one of the following information:
  • the first network device is used for auxiliary information for positioning the terminal device.
  • the first response message if used to instruct the communication device to locate the terminal device, the first response message also includes auxiliary information of the communication device, and the auxiliary information is used for the communication device to locate the terminal device. .
  • the communication device is a network element with a positioning function in the access network in addition to the first network device, and the transceiver receives the second request message from the first network device, and obtains communication through the second request message
  • the capability information of the device, the capability information includes the positioning mode supported by the communication device and/or the positioning accuracy supported by the communication device.
  • the transceiver sends a second response message including the capability information of the communication device to the first network device, so that the first network device determines whether to request the communication device to locate the terminal device according to the second response message.
  • the communication device is a network element with a positioning function in the access network in addition to the first network device.
  • the transceiver After the transceiver receives the first request message, the transceiver has a positioning function in the core network.
  • the network element at, sends a third request message, which is used by a network element with a positioning function in the core network to determine whether to agree to the communication device to locate the terminal device;
  • the transceiver receives a third response message from a network element with a positioning function in the core network, the third response message indicating whether it agrees with the result of positioning the terminal device by the communication device.
  • the processor generates a first response message according to the third response message.
  • the third request message includes at least one of the following information:
  • the identity of the first network device is the identity of the first network device
  • the identity of the server cell where the terminal device is located is located.
  • the communication device may be a network element with a positioning function in the core network.
  • the transceiver sends a fourth request message to the third network device, and instructs the third network through the fourth request message The device locates the terminal device.
  • the transceiver receives from the third network device a fourth response message indicating whether to agree to locate the terminal device, so that the processor generates a first response message according to the fourth response message.
  • the fourth request message includes at least one of the following information:
  • the identity of the serving cell where the terminal device is located is located.
  • a communication device in a ninth aspect, includes a processor for implementing the method executed by the first network device in the fourth aspect.
  • the communication device may also include a memory for storing program instructions and data.
  • the memory is coupled with the processor, and the processor can call and execute the program instructions stored in the memory to implement any method executed by the first network device in the fourth aspect.
  • the communication device may also include a transceiver, and the transceiver is used for the communication device to communicate with other devices. Exemplarily, the other device is the second network device.
  • a processor and transceiver are included, where:
  • the transceiver sends a first request message determined by the processor to the second network device, where the first request message includes a positioning service switching instruction, and the positioning service switching instruction is used to instruct the switched terminal device to perform a positioning service process;
  • the transceiver receives a first response message corresponding to the first request message from the second network device.
  • the first request message further includes a location service indication, and the location service indication is used to indicate whether to use the second network device to locate the terminal device.
  • the first response message is used to instruct the second network device to locate the terminal device;
  • the first response message is used to indicate that the second network device refuses to locate the terminal device, but supports the forwarding of the positioning message, and the positioning message is used to determine the location of the terminal device; or,
  • the first response message is used to indicate that the second network device refuses to locate the terminal device and refuses to forward the positioning message; or,
  • the first response message is used to instruct the third network device to locate the terminal device, and the third network device is a network element with a positioning function in the core network.
  • the first request message includes the location context of the terminal device and/or the identification of the location server, the location server is used to locate the terminal device, and the location context information is used by the first network device to locate the terminal device ;
  • the location context includes at least one of the following information:
  • the first network device is used for auxiliary information for positioning the terminal device.
  • the transceiver forwards the first response message to the terminal device.
  • the second network device is a network element with a positioning function in the access network
  • the transceiver sends a second request message to the second network device, and the second request message is used to obtain the capability of the second network device information
  • the transceiver receives a second response message from the second network device, the second response message includes capability information of the second network device, and the capability information includes the positioning method supported by the second network device and/or the positioning accuracy supported by the second network device ;
  • the processor determines, according to the second response message, whether to request to switch the positioning service of the terminal device to the second network device.
  • the first response message is used to instruct the second network device to locate the terminal device, the first response message also includes auxiliary information of the second network device, and the auxiliary information is used for the second network device to The terminal equipment performs positioning.
  • the transceiver when the first response message is used to instruct the second network device to refuse to locate the terminal device, but supports the forwarding of the positioning message, the transceiver receives the positioning message from the second network device, and the processor The positioning message locates the terminal device.
  • a communication device in a tenth aspect, includes a processor for implementing the method executed by the second network device in the fourth aspect.
  • the communication device may also include a memory for storing program instructions and data.
  • the memory is coupled with the processor, and the processor can call and execute the program instructions stored in the memory to implement any method executed by the second network device in the fourth aspect.
  • the communication device may also include a transceiver, and the transceiver is used for the communication device to communicate with other devices. Exemplarily, the other device is the first network device.
  • a processor and transceiver are included, where:
  • the transceiver receives a first request message sent by the first network device, where the first request message includes a positioning service switching instruction, and the positioning service switching instruction is used to indicate that the switched terminal device is in a positioning service process;
  • the transceiver sends a first response message that is determined by the processor and corresponds to the first request message to the first network device.
  • the first request message further includes a location service indication, and the location service indicates whether to use the second network device to locate the terminal device.
  • the first response message is used to instruct the second network device to locate the terminal device;
  • the first response message is used to indicate that the second network device refuses to locate the terminal device, but supports the forwarding of the positioning message, and the positioning message is used to determine the location of the terminal device; or,
  • the first response message is used to indicate that the second network device refuses to locate the terminal device and refuses to forward the positioning message; or,
  • the first response message is used to instruct the third network device to locate the terminal device, and the third network device is a network element with a positioning function in the core network.
  • the first request message includes the location context of the terminal device and/or the identification of the location server, the location server is used to locate the terminal device, and the location context information is used by the first network device to locate the terminal device ;
  • the location context includes at least one of the following information:
  • the first network device is used for auxiliary information for positioning the terminal device.
  • the second network device is a network element with a positioning function in the access network, and the transceiver receives a second request message sent by the first network device.
  • the second request message is used to obtain the information of the second network device. Capability information
  • the transceiver sends a second response message to the first network device, the second response message includes capability information of the second network device, and the capability information includes the positioning method supported by the second network device and/or the positioning accuracy supported by the second network device , So that the first network device determines whether to request to switch the positioning service of the terminal device to the second network device according to the second response message.
  • the first response message is used to instruct the second network device to locate the terminal device, the first response message also includes auxiliary information of the second network device, and the auxiliary information is used for the second network device Position the terminal equipment.
  • the second network device is a network element with positioning function in the access network
  • the transceiver sends a third request message to the network element with positioning function in the core network
  • the third request message is used for the core network
  • the network element with the positioning function in it determines whether to allow the second network device to locate the terminal device;
  • the transceiver receives a third response message from the network element with the positioning function in the core network.
  • the third response message is used to indicate the determination result.
  • the determination result is whether the network element with the positioning function in the core network agrees to the second network device to the terminal device The result of positioning;
  • the processor generates a first response message according to the third response message.
  • the third request message includes at least one of the following information:
  • the identity of the first network device is the identity of the first network device
  • the identity of the server cell where the terminal device is located is located.
  • the transceiver when the first response message is used to indicate that the second network device refuses to locate the terminal device, but supports the forwarding of the positioning message, the transceiver receives the positioning message from the terminal device; The network device sends a positioning message, so that the first network device locates the terminal device according to the positioning message.
  • a communication device may be a terminal device or a device in a terminal device.
  • the communication device may include a processing module and a communication module. These modules can perform any of the above-mentioned first aspects.
  • the communication module is configured to receive first indication information, the first indication information is used to indicate the type of the first message sent by the terminal device, the first message is used by the positioning server to determine the location of the terminal device, and the first message is that the access network device can The type of the recognized message or the type of the message that the access network device cannot recognize but the core network device can recognize, and the positioning server is a network element with a positioning function in the core network or a network element with a positioning function in the access network;
  • the processing module is configured to determine the type of the first message according to the first indication information, and control the communication module to send the first message to the first network device.
  • the processing module is specifically configured to determine the type of the first message according to the type indicated in the first indication information; or,
  • the processing module is specifically configured to determine the type of the first message according to the type of the first indication information.
  • the processing module is specifically configured to determine that the type of the first message is the type of the message that can be recognized by the access network device according to the type indicated in the first indication information.
  • the type of message or,
  • the processing module is specifically configured to determine that the type of the first message is that the access network device cannot recognize the core network device but the core network device cannot recognize the message type according to the type indicated in the first indication information. The type of message that can be identified.
  • the processing module is specifically configured to determine that the type of the first message is a message type that can be recognized by the access network device according to the first indication information as a message that can be recognized by the access network device; or,
  • the processing module is specifically configured to determine that the type of the first message is a message that the access network device cannot recognize but the core network device can recognize according to the first indication information that the access network device cannot recognize the message but the core network device can recognize .
  • the type of the first message is a type of a message that can be recognized by the access network device, and the first message includes the identification of the positioning server and/or the identification of the cell supported by the positioning server.
  • a communication device may be a first network device or a device in the first network device.
  • the communication device may include a processing module and a communication module. These modules can perform the second In terms of the corresponding function performed by the first network device in any design example, specifically:
  • the communication module is used to obtain second indication information, and the second indication information is used to indicate that the positioning server is a network element with positioning function in the core network or a network element with positioning function in the access network, and the positioning server is used for Position terminal equipment;
  • the communication module is configured to receive a first message sent by the terminal device, and the first message is used by the positioning server to determine the location of the terminal device;
  • a processing module configured to determine to process the first message according to the second instruction information
  • the communication module is also used to forward the first message.
  • the processing module is specifically used to obtain the second indication information from the configuration information; or,
  • the communication module is specifically configured to receive the second indication information from the second network device; or,
  • the second indication information is predefined.
  • the second indication information is a type of message that can be recognized by the access network device, and the second indication information includes at least one of the following information:
  • the identification of the location server or,
  • the identity of the cell supported by the positioning server or,
  • the identifier of the core network device interacting with the positioning server.
  • the processing module is configured to determine the positioning server according to the second indication information.
  • the processing module is configured to determine that the identification of the positioning server included in the second indication information is the identification of the communication device, and then determine that the positioning server is the communication device; or,
  • the processing module is configured to determine that the identity of the cell supported by the positioning server included in the second indication information is the same as the identity of the cell supported by the communication device, and then determine that the positioning server is the communication device.
  • the processing module is used to determine that the identification of the positioning server indicated in the second indication information is different from the identification of the communication device, and the identification of the positioning server is different from the identification of the network element with positioning function in the core network , It is determined that the positioning server is a network element with a positioning function in the access network in addition to the communication device.
  • the identification of the network element with the positioning function in the access network and the positioning indicated in the second indication information is the same; or,
  • the processing module is used to determine that the identity of the cell supported by the positioning server included in the second indication information is different from the identity of the cell supported by the communication device, and then determine that the positioning server is a device with a positioning function in the access network in addition to the communication device For the network element, except for the communication device, the identifier of the cell supported by the network element with the positioning function in the access network is the same as the identifier of the cell supported by the positioning server indicated in the second indication information; or,
  • the processing module is configured to determine that the identifier of the positioning server included in the second indication information is the identifier of a network element with positioning function in the core network, and then determine that the positioning server is a network element with positioning function in the core network; or,
  • the processing module is configured to determine that the second indication information includes the identifier of the core network device interacting with the positioning server, and then determine that the positioning server is a network element with a positioning function in the core network.
  • the processing module when the processing module is configured to determine that the positioning server is a communication device according to the second indication information, then locate the terminal device according to the first message; or,
  • the communication module is also used to forward the first message to the positioning server.
  • a communication device may be a first network device or a device in the first network device.
  • the communication device may include a communication module, which can perform any of the foregoing third aspects.
  • the communication module is configured to send a first request message to the second network device.
  • the first request message is used to request that the serving base station of the terminal device be switched from the communication device to the second network device.
  • the first request message also includes a positioning service switching instruction, The positioning service switching instruction is used to indicate that the terminal device is performing a positioning service, and to request that the positioning service of the terminal device be switched to the second network device;
  • the communication module is configured to receive a first response message corresponding to the first request message from the second network device.
  • the first response message may include but is not limited to the following three ways:
  • the first response message is used to instruct the second network device to locate the terminal device; or,
  • the first response message is used to instruct the third network device to locate the terminal device, and the third network device is a network element with a positioning function in the access network and the core network in addition to the first network device and the second network device; or ,
  • the first response message is used to indicate that a network device other than the first network device is refused to locate the terminal device.
  • the first request message includes the location context of the terminal device, and the location context information is used by the first network device to locate the terminal device;
  • the location context includes at least one of the following information:
  • the first network device is used for auxiliary information for positioning the terminal device.
  • the communication module is configured to forward the first response message to the terminal device after receiving the first response message.
  • the first response message if used to instruct the second network device to locate the terminal device, the first response message also includes auxiliary information of the second network device, and the auxiliary information is used for the second network The device locates the terminal device.
  • the second network device is a network element with a positioning function in the access network in addition to the communication device, and the communication module is used to send a second request message to the second network device through the second request
  • the message acquires the capability information of the second network device, and the capability information includes the positioning method supported by the second network device and/or the positioning accuracy supported by the second network device.
  • a communication module configured to receive a second response message from the second network device, the second response message including capability information of the second network device;
  • the device further includes a processing module, configured to determine whether to request the second network device to locate the terminal device according to the second response message.
  • a communication device may be a second network device or a device in the second network device.
  • the communication device may include a communication module, which can perform any of the foregoing third aspects.
  • the communication module is configured to receive a first request message from the first network device, the first request message is used to request that the serving base station of the terminal device be switched from the first network device to the communication device, and the first request message also includes a positioning service switching instruction, The positioning service switching instruction is used to indicate that the terminal device is performing a positioning service, and to request that the positioning service of the terminal device be switched to the communication device.
  • the communication module is configured to send a first response message corresponding to the first request message to the first network device.
  • the first response message may include but is not limited to the following three ways:
  • the first response message is used to instruct the second network device to locate the terminal device; or,
  • the first response message is used to instruct the third network device to locate the terminal device, and the third network device is a network element with a positioning function in the access network and the core network in addition to the first network device and the second network device; or ,
  • the first response message is used to indicate that a network device other than the first network device is refused to locate the terminal device.
  • the first request message includes the location context of the terminal device, and the location context information is used by the first network device to locate the terminal device;
  • the location context includes at least one of the following information:
  • the first network device is used for auxiliary information for positioning the terminal device.
  • the first response message if used to instruct the communication device to locate the terminal device, the first response message also includes auxiliary information of the communication device, and the auxiliary information is used by the communication device to perform the positioning of the terminal device. Positioning.
  • the communication device is a network element with a positioning function in the access network in addition to the first network device, and the communication module is used to receive a second request message from the first network device and pass the second request The message acquires the capability information of the communication device, and the capability information includes the positioning method supported by the communication device and/or the positioning accuracy supported by the communication device.
  • the communication module is configured to send a second response message including the capability information of the communication device to the first network device, so that the first network device determines whether to request the communication device to locate the terminal device according to the second response message.
  • the communication device is a network element with a positioning function in the access network in addition to the first network device.
  • the communication module is used to send a third request to the network element with the positioning function in the core network Message
  • the third request message is used for a network element with a positioning function in the core network to determine whether to agree to the communication device to locate the terminal device;
  • the communication module is configured to receive a third response message from a network element with a positioning function in the core network, the third response message indicating whether it agrees with the result of positioning the terminal device by the communication device.
  • the processing module is configured to generate a first response message according to the third response message.
  • the third request message includes at least one of the following information:
  • the identity of the first network device is the identity of the first network device
  • the identity of the server cell where the terminal device is located is located.
  • the communication device may be a network element with a positioning function in the core network.
  • the communication module is configured to send a fourth request message to the third network device, and indicate through the fourth request message
  • the third network device locates the terminal device.
  • the communication module is configured to receive from the third network device a fourth response message indicating whether to agree to locate the terminal device, so that the processing module is configured to generate a first response message according to the fourth response message.
  • the fourth request message includes at least one of the following information:
  • the identity of the serving cell where the terminal device is located is located.
  • a communication device may be a first network device or a device in the first network device.
  • the communication device may include a communication module, which can perform any of the foregoing fourth aspects.
  • the communication module is configured to send a first request message to the second network device, the first request message includes a positioning service switching instruction, and the positioning service switching instruction is used to indicate that the switched terminal device is in a positioning service process;
  • the communication module is configured to receive a first response message corresponding to the first request message from the second network device.
  • the first request message further includes a location service indication, and the location service indication is used to indicate whether to use the second network device to locate the terminal device.
  • the first response message is used to instruct the second network device to locate the terminal device;
  • the first response message is used to indicate that the second network device refuses to locate the terminal device, but supports the forwarding of the positioning message, and the positioning message is used to determine the location of the terminal device; or,
  • the first response message is used to indicate that the second network device refuses to locate the terminal device and refuses to forward the positioning message; or,
  • the first response message is used to instruct the third network device to locate the terminal device, and the third network device is a network element with a positioning function in the core network.
  • the first request message includes the location context of the terminal device and/or the identification of the location server, the location server is used to locate the terminal device, and the location context information is used by the first network device to locate the terminal device ;
  • the location context includes at least one of the following information:
  • the first network device is used for auxiliary information for positioning the terminal device.
  • the communication module is used to forward the first response message to the terminal device.
  • the second network device is a network element with a positioning function in the access network
  • the communication module is used to send a second request message to the second network device, and the second request message is used to obtain the second network Equipment capability information
  • the communication module is configured to receive a second response message from the second network device, the second response message includes the capability information of the second network device, and the capability information includes the positioning method supported by the second network device and/or the second network device. Positioning accuracy;
  • the device also includes a processing module, which is used to determine whether to request to switch the positioning service of the terminal device to the second network device according to the second response message.
  • the first response message is used to instruct the second network device to locate the terminal device, the first response message also includes auxiliary information of the second network device, and the auxiliary information is used for the second network device to The terminal equipment performs positioning.
  • the first response message is used to indicate that the second network device refuses to locate the terminal device, but supports the forwarding of the positioning message
  • the communication module is used to receive the positioning message from the second network device.
  • the processing module is used to locate the terminal device according to the positioning message.
  • a communication device may be a second network device or a device in the second network device.
  • the communication device may include a communication module, which can perform any of the foregoing fourth aspects.
  • a communication module configured to receive a first request message sent by a first network device, the first request message includes a positioning service switching instruction, and the positioning service switching instruction is used to indicate that the switched terminal device is in a positioning service process;
  • the communication module is configured to send a first response message corresponding to the first request message to the first network device.
  • the first request message further includes a location service indication, and the location service indicates whether to use the second network device to locate the terminal device.
  • the first response message is used to instruct the second network device to locate the terminal device;
  • the first response message is used to indicate that the second network device refuses to locate the terminal device, but supports the forwarding of the positioning message, and the positioning message is used to determine the location of the terminal device; or,
  • the first response message is used to indicate that the second network device refuses to locate the terminal device and refuses to forward the positioning message; or,
  • the first response message is used to instruct the third network device to locate the terminal device, and the third network device is a network element with a positioning function in the core network.
  • the first request message includes the location context of the terminal device and/or the identification of the location server, the location server is used to locate the terminal device, and the location context information is used by the first network device to locate the terminal device ;
  • the location context includes at least one of the following information:
  • the first network device is used for auxiliary information for positioning the terminal device.
  • the second network device is a network element with a positioning function in the access network, and the communication module is used to receive a second request message sent by the first network device, and the second request message is used to obtain the second network Equipment capability information;
  • the communication module is configured to send a second response message to the first network device, the second response message includes capability information of the second network device, and the capability information includes positioning methods supported by the second network device and/or supported by the second network device.
  • the positioning accuracy of the terminal device is required to enable the first network device to determine whether to request to switch the positioning service of the terminal device to the second network device according to the second response message.
  • the first response message is used to instruct the second network device to locate the terminal device, the first response message also includes auxiliary information of the second network device, and the auxiliary information is used for the second network device to The terminal equipment performs positioning.
  • the second network device is a network element with a positioning function in the access network
  • the communication module is used to send a third request message to the network element with a positioning function in the core network.
  • the network element with the positioning function in the core network determines whether to agree to the positioning of the terminal device by the second network device;
  • the communication module is used to receive a third response message from the network element with the positioning function in the core network, the third response message is used to indicate the determination result, and the determination result is whether the network element with the positioning function in the core network agrees to be used by the second network device The result of positioning the terminal equipment;
  • the device also includes a processing module, which is configured to generate a first response message according to the third response message.
  • the third request message includes at least one of the following information:
  • the identity of the first network device is the identity of the first network device
  • the identity of the server cell where the terminal device is located is located.
  • the first response message is used to indicate that the second network device refuses to locate the terminal device, but supports the forwarding of the positioning message
  • the communication module is used to receive the positioning message from the terminal device; and, to Send a positioning message to the first network device, so that the first network device locates the terminal device according to the positioning message.
  • the embodiments of the present application also provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method executed by the terminal device in the first aspect.
  • an embodiment of the present application also provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method executed by the first network device in the second aspect.
  • an embodiment of the present application also provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method executed by the first network device in the third aspect.
  • an embodiment of the present application also provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method executed by the second network device in the third aspect.
  • an embodiment of the present application also provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method executed by the first network device in the fourth aspect.
  • an embodiment of the present application also provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method executed by the second network device in the fourth aspect.
  • the embodiments of the present application also provide a computer program product, including instructions, which when run on a computer, cause the computer to execute the method executed by the terminal device in the first aspect.
  • the embodiments of the present application also provide a computer program product, including instructions, which when run on a computer, cause the computer to execute the method executed by the first network device in the second aspect.
  • the embodiments of the present application also provide a computer program product, including instructions, which when run on a computer, cause the computer to execute the method executed by the first network device in the third aspect.
  • the embodiments of the present application also provide a computer program product, including instructions, which when run on a computer, cause the computer to execute the method executed by the second network device in the third aspect.
  • the embodiments of the present application also provide a computer program product, including instructions, which when run on a computer, cause the computer to execute the method executed by the first network device in the fourth aspect.
  • the embodiments of the present application also provide a computer program product, including instructions, which when run on a computer, cause the computer to execute the method executed by the second network device in the fourth aspect.
  • an embodiment of the present application provides a chip system.
  • the chip system includes a processor and may also include a memory for implementing the method executed by the terminal device in the first aspect.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • an embodiment of the present application provides a chip system.
  • the chip system includes a processor and may also include a memory for implementing the method executed by the first network device in the second aspect.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • an embodiment of the present application provides a chip system.
  • the chip system includes a processor and may also include a memory, configured to implement the method executed by the first network device in the third aspect.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • an embodiment of the present application provides a chip system.
  • the chip system includes a processor and may also include a memory for implementing the method executed by the second network device in the third aspect.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • an embodiment of the present application provides a chip system.
  • the chip system includes a processor and may also include a memory for implementing the method executed by the first network device in the fourth aspect.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • an embodiment of the present application provides a chip system.
  • the chip system includes a processor and may also include a memory for implementing the method executed by the second network device in the fourth aspect.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • an embodiment of the present application provides a communication system, and the communication system includes the communication device according to the fifth aspect or the sixth aspect.
  • an embodiment of the present application provides a communication system, and the communication system includes the communication devices described in the seventh aspect and the eighth aspect.
  • an embodiment of the present application provides a communication system, and the communication system includes the communication device described in the ninth aspect and the tenth aspect.
  • an embodiment of the present application provides a communication system, and the communication system includes the communication device according to the eleventh aspect or the twelfth aspect.
  • an embodiment of the present application provides a communication system, and the communication system includes the communication device according to the thirteenth aspect or the fourteenth aspect.
  • an embodiment of the present application provides a communication system, and the communication system includes the communication device according to the fifteenth aspect or the sixteenth aspect.
  • FIG. 1 is an architecture diagram of a positioning system in a 5G system provided by an embodiment of this application;
  • FIGS. 2A to 2D are structural diagrams of examples of positioning systems provided by embodiments of this application.
  • FIG. 3 is a flowchart of an example of a communication method provided by an embodiment of this application.
  • FIG. 5 is a flowchart of another example of a communication method provided by an embodiment of this application.
  • FIG. 6 is a flowchart of another example of a communication method provided by an embodiment of this application.
  • FIG. 7 is a flowchart of another example of a communication method provided by an embodiment of this application.
  • FIG. 8 is a schematic structural diagram of a communication device provided in an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of another communication device provided in an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of another communication device provided in an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of another communication device provided in an embodiment of this application.
  • FIG. 12 is a schematic block diagram of a communication device provided by an embodiment of this application.
  • FIG. 13 is another schematic block diagram of a communication device provided by an embodiment of this application.
  • FIG. 14 is still another schematic block diagram of the communication device provided by an embodiment of this application.
  • FIG. 15 is still another schematic block diagram of a communication device provided by an embodiment of this application.
  • FIG. 16 is still another schematic block diagram of a communication device provided by an embodiment of this application.
  • FIG. 17 is still another schematic block diagram of the communication device provided by an embodiment of this application.
  • Terminal equipment also known as terminal, user equipment (UE), mobile station (MS), mobile terminal (mobile terminal, MT), etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • And/or data connectivity devices for example, may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem.
  • the terminal device can communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN.
  • the terminal equipment may include user equipment (UE), wireless terminal, mobile terminal, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), remote station (remote station), access Point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or user equipment (user device), etc.
  • it may include mobile phones (or “cellular” phones), computers with mobile terminals, portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, and smart wearable devices.
  • mobile phones or “cellular” phones
  • computers with mobile terminals portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices
  • smart wearable devices for example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants, etc.) PDA), and other equipment.
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • the terminal device may also include restricted devices, such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • restricted devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • smart wearable devices are the general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait.
  • a smart wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories.
  • Smart wearable devices are not only hardware devices, but also powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, smart wearable devices include full-featured, large-sized, complete or partial functions that can be realized without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the terminal device may also be a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in driverless, Wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, smart home ) In the wireless terminal, etc.
  • VR virtual reality
  • AR augmented reality
  • a wireless terminal in industrial control a wireless terminal in driverless, Wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, smart home ) In the wireless terminal, etc.
  • the network equipment can be a (radio) access network ((radio) access network, (R) AN) equipment, a core network (core network, CN) equipment, or a combination thereof.
  • the (R)AN device for example, includes a base station (for example, an access point), and may refer to a device that communicates with a wireless terminal through one or more cells through an air interface in an access network.
  • the (wireless) access network equipment can be used to convert the received air frames and Internet Protocol (IP) packets to each other, as a router between the terminal equipment and the rest of the access network, where the rest of the access network can include IP network.
  • IP Internet Protocol
  • the (wireless) access network equipment can also coordinate the attribute management of the air interface.
  • (wireless) access network equipment may include radio network controller (RNC), node B (Node B, NB), base station controller (BSC), and base transceiver station (base transceiver station).
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • base transceiver station base transceiver station
  • BTS radio network controller
  • home base station for example, home evolved NodeB, or home Node B, HNB
  • BBU base band unit
  • Wi-Fi wireless fidelity
  • the (wireless) access network equipment may also include the evolutionary base station (NodeB or eNB or e-NodeB, evolutional Node in the long term evolution (LTE) system or the evolved LTE system (LTE-Advanced, LTE-A)).
  • NodeB or eNB or e-NodeB evolutional Node in the long term evolution (LTE) system or the evolved LTE system (LTE-Advanced, LTE-A)).
  • LTE long term evolution
  • LTE-A evolved LTE system
  • the (wireless) access network equipment may also include the next generation node B (gNB) and the transmission and reception point (TRP) in the 5G system or the new radio (NR) system, Or transmission point (TP).
  • gNB next generation node B
  • TRP transmission and reception point
  • TP transmission point
  • the (wireless) access network equipment may also include a centralized unit (CU) and/or a distributed unit (DU) in a cloud radio access network (CloudRAN) system,
  • CU centralized unit
  • DU distributed unit
  • CloudRAN cloud radio access network
  • CS network element has mobile switching center, visit location register and gateway mobile switching In the center, the PS network element has a general packet radio service (GPRS) node and a gateway GPRS support node.
  • GPRS general packet radio service
  • Some network elements such as home location register, visitor location register, and authentication center can be shared by CS domain and PS domain.
  • the positioning server may refer to a device used to determine the location of a terminal device according to the measurement information of the reference signal (for example, RSTD or cell identification (CID), etc.) of the terminal device.
  • the device may be a hardware device, It can also be a logical device based on software support.
  • the positioning server may include an enhanced serving mobile location center (E-SMLC), a location management function (location management function, LMF), and a radio access network-location management component (radio access network-location management). component, RAN-LMC) etc.
  • E-SMLC enhanced serving mobile location center
  • LMF location management function
  • radio access network-location management component radio access network-location management
  • E-SMLC is a location server located in the evolved packet core (EPC)
  • LMF is a location server located in the 5G core network (5G core, 5GC)
  • RAN-LMC is a location service located on the side of the radio access network.
  • the functional components can realize part of the functions of the LMF.
  • RAN-LMC and LMC can be used interchangeably.
  • AMF network element used for terminal equipment authentication, terminal equipment mobility management, maintenance and management of terminal equipment status information and other functions.
  • the AMF network element interacts with (wireless) access network equipment through the NG-C interface, and interacts with the E-SMLC through the Nls interface.
  • multiple refers to two or more than two. In view of this, “multiple” can also be understood as “at least two” in the embodiments of this application. “At least one” can be understood as one or more, for example, one, two or more.
  • including at least one means including one, two or more, and does not limit which ones are included.
  • including at least one of A, B, and C then the included can be A, B, C, A and B, A and C, B and C, or A and B and C.
  • ordinal numbers such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or importance of multiple objects.
  • the base station Before positioning the terminal equipment, the base station first configures the terminal equipment with multiple auxiliary information cells for positioning the terminal equipment, and the multiple auxiliary information cells together send positioning reference signals (positioning reference signals, PRS) to the terminal equipment. .
  • positioning reference signals positioning reference signals, PRS
  • the terminal device selects one cell from the multiple auxiliary information cells as the auxiliary information reference cell, and other cells as the auxiliary information neighboring cells. After receiving the PRS sent by each cell, the terminal device calculates the RSTD of the PRS of each auxiliary information neighbor cell relative to the PRS of the auxiliary information reference cell.
  • the terminal device can choose to report all or part of the RSTD and other information of the auxiliary information neighboring cell to the E-SMLC.
  • the RSTD and other information to be reported can be carried by the LTE positioning protocol (LTE positioning protocol, LPP).
  • LPP LTE positioning protocol
  • the RSTD and other information carried in the LPP can be referred to as LPP messages.
  • LPP message can also have other names, and there is no restriction here.
  • FIG. 1 is an architecture diagram of a positioning system in a 5G system provided by an embodiment of the application.
  • the terminal device sends a NAS message to the LMF through an LPP message.
  • the AMF can be a gateway or a mobility management element (mobility management element, MME), and the LMF can be an E-SMLC.
  • the terminal device encapsulates the LPP message into non-access stratum (NAS) signaling, and then sends the NAS signaling to the base station through the Uu interface between the base station and the terminal device.
  • the base station receives the NAS signaling, it forwards the NAS signaling to the AMF network element through the NG-C interface between the base station and the access and mobility management function (AMF) network element .
  • AMF access and mobility management function
  • the AMF network element parses the received NAS signaling to obtain the LPP message, and then sends the LPP message to the LMF through the NLs interface between the AMF network element and the LMF. After obtaining the LPP message, the LMF uses the pre-stored geographic location information of the multiple auxiliary information cells and the LPP message to calculate the location of the terminal device.
  • GNSS global navigation satellite system
  • ID identification, ID
  • ECID enhanced cell identity
  • the embodiment of the present application provides a communication method.
  • the positioning server used to determine the position of the terminal device may be a network element with positioning function in the core network, for example, it may be LMF or A network element with a positioning function in an access network, for example, an access network device with a positioning function.
  • the terminal device may first receive first indication information for indicating the type of the first message sent by the terminal device.
  • the first indication information may indicate that the type of the first message is a type that cannot be recognized by the access network device but can be recognized by the core network device.
  • the positioning server is a network element with a positioning function in the access network
  • the first indication information may indicate that the type of the first message is a type of a message that can be recognized by the access network device.
  • the terminal device determines the type of the first message according to the first indication information, it sends the first message to the first network device. If the type of the first message is the type of the message that can be recognized by the first network device, the first network device can directly determine the location of the terminal device according to the first message, thereby eliminating the need to forward the first message and reducing forwarding Delay overhead caused by the process.
  • the first network device is a positioning function in the RAN, and may be located on the serving base station or other neighbor base stations, depending on the network deployment, and this application does not restrict it.
  • FIG. 2A is a schematic diagram of an example of a positioning architecture provided in an embodiment of this application.
  • FIG. 2A it includes a terminal device, an access network device, and an LMF.
  • the terminal device is located within the coverage of cell A of the access network device, and the access network device has a positioning function.
  • the access network device It is a network device with positioning function in the access network, and LMF is a network device with positioning function in the core network.
  • FIG. 2B is a schematic diagram of another example of a positioning architecture provided by an embodiment of this application.
  • the two positioning servers are LMC and LMF.
  • the access network equipment in Figure 2B is connected to the LMC, and the positioning function is realized through LMC.
  • LMC is a network equipment with positioning function in the access network
  • LMF is a core network with positioning function. Functional network equipment.
  • FIG. 2C is a schematic diagram of another example of a positioning architecture provided by an embodiment of this application.
  • the difference from FIG. 2A is that FIG. 2C also includes an AMF network element, which is respectively connected to an access network device and an LMF, where the AMF network element is a network device in the core network.
  • FIG. 2D is a schematic diagram of another example of a positioning architecture provided in an embodiment of this application.
  • the difference from Figure 2C is that Figure 2D includes two access network devices, namely access network device 1 and access network device 2.
  • Access network device 1 and access network device 2 respectively pass through AMF network elements, Connected to the LMF, the access network device 2 may or may not have a positioning function.
  • the access network device 2 has a positioning function as an example.
  • the terminal equipment is located in the coverage area of cell A of the access network equipment 1.
  • the access network device has a positioning function. It can be understood that if the access network device receives a message for positioning sent by the terminal device, such as an LPP message, the access network device can use its positioning function to The LPP message is processed to obtain the positioning result of the terminal device.
  • the numbers of access network devices and terminal devices in Figures 2A to 2D are just examples.
  • the positioning architecture provided in this application can provide services for more terminal devices and can include more access network devices.
  • the positioning architecture shown in FIGS. 2A to 2D although the LMF, access network equipment, terminal equipment, and cells are shown, the positioning architecture may not be limited to include the foregoing content. For example, it may also include devices for carrying virtualized network functions, wireless relay devices, and so on. These are obvious to those of ordinary skill in the art, and will not be detailed here.
  • the positioning system provided in the embodiments of this application can be applied to 5G systems, advanced long term evolution (LTE-A) systems, worldwide interoperability for microwave access (WiMAX), or wireless local area networks (wireless local area networks, WLAN) systems, etc.
  • LTE-A advanced long term evolution
  • WiMAX worldwide interoperability for microwave access
  • WLAN wireless local area networks
  • the positioning system may also be suitable for future-oriented communication technologies.
  • the communication system described in the embodiments of the present application is to illustrate the technical solutions of the embodiments of the present application more clearly, and does not constitute the technical solutions provided by the embodiments of the present application.
  • Those of ordinary skill in the art know that with the evolution of the network architecture, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.
  • LMF is only an example of the positioning server in the core network, and other names may also be used in other communication systems. Those skilled in the art should not interpret LMF as positioning in the core network. Server limitations.
  • FIG. 3 is a flowchart of the communication method.
  • the first network device described below may be the access network device 1 in the positioning architecture shown in FIG. 2D
  • the terminal device described below may be the terminal device in the positioning architecture shown in FIG. 2D
  • the network element with positioning function in the access network described below may be the access network device 1 or the access network device 2.
  • the network element with the positioning function in the core network described below may be an LMF
  • the core network device described below may be an AMF network element.
  • the method can be executed by two communication devices.
  • the two communication devices are, for example, a first communication device and a second communication device.
  • the first communication device may be the access network device 1 or a communication device capable of supporting the access network device 1 to implement the functions required by the method.
  • It may also be other communication devices, such as a chip system.
  • the second communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, or may be a chip system.
  • the method is executed by the access network device 1 and the terminal device as an example, that is, the first communication device is the access network device 1 and the second communication device is the terminal device as an example.
  • the core network device determines a positioning server for positioning the terminal device.
  • devices with positioning functions include network elements with positioning functions in the access network, for example, access network equipment 1, access network equipment 2, and network elements with positioning functions in the core network. For example, LMF. Therefore, before positioning the terminal device, the core network device first determines which device with the positioning function in the positioning architecture is used to locate the terminal device.
  • the core network device can be the AMF network element shown in Figure 2D, or it can also be an LMF. Of course, if there are other devices in the core network of the positioning architecture, other devices can also be used to determine the location of the terminal device.
  • the location server is not limited here.
  • the AMF network element determines the positioning server for positioning the terminal device, including but not limited to the following methods:
  • the AMF network element can determine the positioning server used for positioning the terminal device according to the information carried in the positioning request.
  • the positioning request may carry the cell identity (CID), global cell identity (GCI), physical cell identity (PCI), The identification of the access network device, such as the index number and the identification (ID) number of the access network device.
  • CID cell identity
  • GCI global cell identity
  • PCI physical cell identity
  • the identification of the access network device such as the index number and the identification (ID) number of the access network device.
  • the AMF network element After the AMF network element obtains the identifier of the access network device that provides services for the terminal device from the positioning request, it can determine whether the access network device has a positioning function according to the identifier. Alternatively, after receiving the positioning request sent by the terminal device, the AMF network element may obtain the above information from the operation management and maintenance (OAM) functional network element.
  • OAM operation management and maintenance
  • the AMF network element pre-stores the identification of the access network device with the positioning function, and then combines the identification of the access network device with the positioning function stored in advance with the identification of the access network device obtained from the positioning request. match.
  • the access network device serving the terminal device has the positioning function, and thus It can be determined that the access network device is used as the positioning server of the terminal device.
  • the access network device providing services for the terminal device does not have positioning Function to determine the use of LMF as the positioning server of the terminal device.
  • the AMF network element can actively initiate a positioning request for the terminal device.
  • the AMF network element can periodically locate the terminal device.
  • the AMF network element may determine the positioning server for positioning the terminal device according to the load of the access network device with positioning function and the load of the LMF.
  • the AMF network element when the AMF network element actively initiates a positioning request for a terminal device, the AMF network element can obtain the load of each access network device with positioning function and the load of the LMF, and determine the network device with the smallest load Positioning server for terminal equipment.
  • the access network equipment with positioning function includes access network equipment 1 and access network equipment 2, and the AMF network element determines that access network equipment 1 provides positioning services for 10 terminal devices.
  • the access network device 2 provides location services for five terminal devices, and the LMF provides location services for three terminal devices. Therefore, the AMF network element can determine to use LMF as the location server for the terminal device.
  • the AMF network element may determine the positioning server of the terminal device after receiving the handover request for switching the access network device sent by the terminal device.
  • the AMF network element can determine that the source access network device or the target access network device in the handover request is the positioning server of the terminal device.
  • the handover request sent by the terminal device is to switch from the access network device 1 to the access network device 2, and the AMF network element first determines whether the target access network device to be switched by the terminal device has a positioning function. If the target access network device has a positioning function, the AMF network element can determine that the positioning server of the terminal device is the target access network device. If the target access network device does not have the positioning function, the AMF network element can determine the terminal device's The positioning server is the source access network device. If both have positioning functions, the AMF network element can randomly select one as the positioning server.
  • the AMF network element may also obtain capability information of each access network device, and the capability information may include information about whether the access network device has a positioning function. According to the capability information of each access network device, AMF determines that both access network device 1 and access network device 2 have positioning functions. Therefore, the AMF network element can randomly select one, for example, select the target access network device (that is, The access network device 2) serves as the positioning server of the terminal device.
  • the target access network device that is, The access network device 2 serves as the positioning server of the terminal device.
  • the AMF network element may also use other methods to determine the location server of the terminal device, and no examples are given here.
  • the AMF network element sends first indication information, and the terminal device receives the first indication information.
  • the positioning server that can be used to locate the terminal device may be an LMF or an access network device with positioning function.
  • the terminal device reports The information used to determine the location of the terminal device is also different.
  • the information used to determine the location of the terminal device is the first message as an example.
  • the first message may include RSTD, reference signal receiving power (RSRP), reference signal receiving quality (RSRQ) of the serving cell where the terminal device is located, terminal device and service
  • RSTD reference signal receiving power
  • RSRQ reference signal receiving quality
  • SRS sounding reference signal
  • the identity of the serving cell where the terminal device is located may also include other information, which is not one by one here. Enumerate.
  • the positioning server used to determine the location of the terminal device is LMF
  • the first message reported by the terminal device is sent to LMF, that is to say, the access network device does not need to know the content sent in the first message.
  • the terminal device needed to encapsulate the first message as a message type that the access network device cannot recognize but the core network device can recognize, for example, an LPP message carried by a NAS message, and then sent. This method can be compared with the prior art. The way in is similar.
  • the positioning server used to determine the location of the terminal device is an access network device with a positioning function
  • the first message reported by the terminal device is sent to the access network device. Therefore, the terminal device can encapsulate the first message as an access network device.
  • LPP messages can be carried by NAS messages
  • NAS messages can be carried by RRC messages.
  • the LPP message is directly carried by the RRC message.
  • the NAS message refers to a NAS message carried by an RRC message.
  • the AMF network element determines the positioning server used to locate the terminal device, the AMF network element can send the first indication information to the terminal device, and notify the terminal device of the determined positioning server through the first indication information.
  • the terminal device may adopt different processing methods for the first message according to different positioning servers.
  • the first indication information serves not only to indicate the positioning server determined by the AMF network element to locate the terminal device, but also to indicate the type of the first message sent by the terminal device. Or, it can also be understood as indicating the positioning server determined by the AMF network element to locate the terminal device by indicating the type of the first message sent by the terminal device.
  • the first indication information may include but is not limited to the following six situations:
  • the first case is a first case:
  • the first indication information directly indicates the type of the first message.
  • the AMF network element determines the positioning server for positioning the terminal device
  • the AMF network element directly determines the type of the first message according to the type of the positioning server, and indicates the type of the first message through the first indication information.
  • the AMF network element determines that the positioning server is LMF, the AMF network element indicates in the first indication information that the type of the first message is a type of a message that cannot be recognized by the access network device but can be recognized by the core network device; if The AMF network element determines that the positioning server is an access network device, and the AMF network element indicates in the first indication information that the type of the first message is a message type that can be recognized by the access network device.
  • the first indication information may be indicated by the content of the message, and specifically may be indicated by a specific bit or field, which is not limited here.
  • the second case is a first case
  • the first indication information carries the identifier of the positioning server determined by the AMF network element.
  • the access network device 1 may send configuration information to the terminal device.
  • the configuration information is used to indicate the range of the identity of the network element in the access network.
  • the range can be 0 to 256, that is, the identifier of the access network device must be in this range.
  • the identifier of the access network device 1 is 0, the identifier of the access network device 2 is 1, and the identifier of the LMF It can be any value greater than 256, for example, it can be 280.
  • the identity of a network element is within the range, it means that the network element is a network element in the access network, and if the identity of a network element is out of this range, it means that the network element is a network element in the core network.
  • the identification of the positioning server may include the identification of the core network device or the identification of the access network device. For example, when the identification of the positioning server is 0, it means that the identification of the positioning server is the identification of the core network device. Identification, the terminal device can determine that the positioning server is located in the core network. When the identifier of the positioning server is 1, it means that the identifier of the positioning server is the identifier of the access network device, and the terminal device can determine that the positioning server is located in the access network.
  • the AMF network element determines the positioning server for positioning the terminal device, it generates the first indication information according to the identifier of the positioning server.
  • the third case is a first case.
  • the first indication information carries the type of the positioning server determined by the AMF network element.
  • the first type is the type of access network equipment
  • the second type is the type of core network equipment.
  • the type of the positioning server is the type of the access network device, it can be the access network device that provides services for the terminal device by default.
  • the AMF network element may pre-arrange with the terminal device to use one bit or one field in the first indication information to indicate the type of the positioning server determined by the AMF network element. For example, use a bit in the first indication information to indicate. When the value of this bit is 0, it means that the type of the positioning server is the type of the access network device. When the value of the first bit is 1, , It means that the type of positioning server is the type of core network equipment. It should be understood that this is only an example, and the specific value is not limited in this application.
  • the first indication information carries the identifier of the positioning session (session) of the positioning server.
  • the access network device 1 may send configuration information to the terminal device in advance, the configuration information is used to indicate the range of the identifier of the positioning session in the access network device, and the range may be 0 to 128, that is, The identifier of the location session of the access network device must be located in this range, and the identifier of the location session of the LMF can be any value greater than 128, for example, it can be 200.
  • the first indication information implicitly indicates the positioning server determined by the AMF network element through the type of the first indication information.
  • the type of the first indication information is also different.
  • the type of the first indication information may be a type of message that the access network device cannot recognize but the core network device can recognize, for example, it may be a NAS message.
  • the AMF network element determines that the positioning server is an access network device
  • the type of the first indication information may be a type that can be recognized by the access network device, for example, it may be an RRC message.
  • the type of messages that the access network device cannot recognize but the core network device can recognize may be NAS messages, or other message types, such as LPP messages encapsulated in NAS messages.
  • the type of messages that can be recognized by the access network device can be RRC messages, other messages can also be encapsulated in RRC messages, or other messages, such as media access control (MAC) signaling, There is no limitation in the embodiments of this application.
  • the first indication information may be a combination of any two or three or four or five of the aforementioned five situations. The content of the specific combination will not be repeated here.
  • the first indication information may be dedicated signaling, for example, RRC configuration signaling, or MAC signaling (MAC control element, MAC CE), etc.; the first indication information may also be an LPP message, or, The information that the LPP message is encapsulated in the encapsulation format of RRC signaling, or the information that the LPP message is encapsulated in the encapsulation format of NAS signaling. Alternatively, the first indication information may also be any one of the messages that the AMF network element interacts with the terminal device. In this embodiment of the present application, the specific form of the first indication information is not limited.
  • the AMF network element can directly send the first indication information to the terminal device, or it can send the first indication information to the access network device that provides services for the terminal device. , And then the access network device forwards the first indication information to the terminal device.
  • the first indication information can also be sent to the terminal device in other ways, which is not limited here.
  • the AMF network element directly uses the terminal device as an example.
  • the terminal device determines the type of the first message according to the first indication information.
  • the terminal device After receiving the first indication information, the terminal device determines the type of the first message according to the first indication information.
  • the AMF network element can adopt a variety of ways to indicate to the terminal device a positioning server for positioning the terminal device through the first indication information. Therefore, there are also multiple ways for the terminal device to determine the type of the first message according to the first indication information, which may specifically include but are not limited to the following five types:
  • the terminal device determines the type of the first message according to the type indicated in the first indication information.
  • the terminal device determines that the type indicated in the first indication information is the type of the message that can be recognized by the access network device.
  • the terminal device determines that the type of the first message is the type of the message that can be recognized by the access network device. Types of. If the terminal device determines that the type indicated in the first indication information is a message type that the access network device cannot recognize but the core network device can recognize, the terminal device determines that the type of the first message is that the access network device cannot recognize the core network device The type of message that can be identified.
  • the terminal device determines the type of the first message according to the identifier of the positioning server carried in the first indication information.
  • the terminal device determines the range of the identity of the network element in the access network through the configuration information sent by the access network device 1.
  • the range may be 0 ⁇ 256.
  • the terminal device can determine whether the identification of the positioning server indicated in the first indication information exceeds the range. If the identification of the positioning server is within the range, the terminal device determines that the positioning server determined by the AMF network element is an access network device, and then determines The type of the first message is a type of a message that can be recognized by the access network device, for example, it may be an RRC message. Otherwise, the terminal device determines that the type of the first message is a type of a message that the access network device cannot recognize but the core network device can recognize, for example, it may be a NAS message.
  • the terminal device determines the type of the first message according to the type of the positioning server carried in the first indication information.
  • the terminal device determines that the type of the positioning server indicated in the first indication information is the type of the access network device, the terminal device determines that the type of the first message is the type of the message that the access network device can recognize; if The terminal device determines that the type of the positioning server indicated in the first indication information is the type of the core network device, and the terminal device determines that the type of the first message is a type of a message that the access network device cannot recognize but the core network device can recognize.
  • the terminal device determines the type of the first message according to the identifier of the positioning session carried in the first indication information.
  • the terminal device may determine the range of the identifier of the positioning session in the access network device according to the configuration information sent to the terminal device in advance by the access network device 1, and the range may be 0-128.
  • the terminal device can determine whether the identification of the positioning session indicated in the first indication information exceeds the range. If the identification of the positioning server is within the range, the terminal device determines that the positioning server determined by the AMF network element is an access network device, and then determines The type of the first message is a type of a message that can be recognized by the access network device; otherwise, the terminal device determines that the type of the first message is a type of a message that cannot be recognized by the access network device but can be recognized by the core network device.
  • the terminal device determines the type of the first message according to the type of the first indication information.
  • the terminal device determines that the first indication information is a message that can be recognized by the access network device, the terminal device determines that the type of the first message is the type of message that can be recognized by the access network device; if the terminal device determines that the first The indication information is a message that the access network device cannot recognize but the core network device can recognize, and the terminal device determines that the type of the first message is a message type that the access network device cannot recognize but the core network device can recognize.
  • the terminal device determines that the first indication information is a NAS message
  • the terminal device determines that the type of the first message is a NAS message
  • the terminal device determines that the first indication information is an RRC message
  • the terminal device determines that the type of the first message is RRC news.
  • the terminal device may also use other methods to determine the type of the first message, which is not limited here.
  • the terminal device sends the first message to the first network device, and the first network device receives the first message.
  • the first access network device is the access network device that provides services for the terminal device.
  • it may be the access network device 1 shown in FIG. 2D.
  • the first message may include information such as RSRP, RSRQ, the time difference between receiving and sending signals between the terminal device and the serving cell, SRS, and the identity of the serving cell where the terminal device is located.
  • any of RSRP, RSRQ, and the time difference between receiving and sending signals between the terminal device and the serving cell can be that the terminal device receives the positioning parameter measurement request sent by the AMF network element or the terminal device actively initiates the positioning request Later, it is obtained by measuring the reference signal of the serving cell. Or, it may also be obtained by measuring the reference signal of the periodic serving cell of the terminal device.
  • the SRS and the identification of the serving cell where the terminal device is located does not require the terminal device to perform measurement.
  • the terminal device receives a positioning parameter measurement request or the terminal device actively initiates a positioning request, it can directly report the corresponding information.
  • the terminal device may have already acquired the relevant parameters or content of the first message before receiving the first indication information, or it may be after acquiring the first indication information, and then The reference signal of the serving cell sent by the access network device 1 is measured to obtain the first message.
  • the order in which the terminal device obtains the first indication information and the first message is not limited.
  • both the access network device 1 and the access network device 2 have the positioning function.
  • the access network device 1 may not know the positioning server determined by the AMF network element. Therefore, when the terminal device determines that the type of the first message is the type of the message that can be recognized by the access network device, the terminal device returns in the first message It can indicate the positioning server determined by the AMF network element.
  • the terminal device may carry the identification of the positioning server and/or the identification of the cell supported by the positioning server in the first message, and the identification of the cell may be CID, GCI, or PCI.
  • the terminal device determines that the positioning server determined by the AMF network element is the access network device 1 through the first indication information, the terminal device may carry the identification of the access network device 1 and/or the access network device 1 in the first message.
  • the identity of cell A can also be carried, and no examples are given here.
  • the terminal device After obtaining the relevant parameters or content of the first message, the terminal device can generate an LPP message according to the relevant parameters or content of the first message, and then use the corresponding protocol to encapsulate the LPP message according to the determined type of the first message. Then send to the access network device 1.
  • the terminal device can use the RRC protocol to encapsulate the LPP message; if the terminal device determines that the type of the first message is not recognized by the access network device but the core If the network device can recognize the type, the terminal device can use the NAS protocol to encapsulate the LPP message.
  • the first access network device determines the location of the terminal device according to the first message.
  • the access network device 1 When the access network device 1 receives the first message and determines that the first message is a type of message that can be recognized by the access network device, the access network device 1 parses the first message. If the first message does not carry the identity of the other access network device, or the identity of the access network device carried in the first message is the same as the identity of the access network device 1, or the identity of the cell carried in the first message If the identity of one of the cells of the access network device 1 is the same, the access network device 1 determines the location of the terminal device according to the first message.
  • the first access network device forwards the first message to the positioning server.
  • the access network device 1 When the access network device 1 receives the first message and determines that the access network device cannot recognize the first message, the access network device 1 forwards the first message to the LMF. Specifically, the access network device 1 sends the first message to the LMF through the AMF network element.
  • the access network device 1 when the access network device 1 receives the first message and determines that the first message is a type of message that can be recognized by the access network device, the access network device 1 parses the first message. If the identity of the access network device carried in the first message is different from the identity of the access network device 1, or the identity of the cell carried in the first message is different from the identity of any cell of the access network device 1, then The network access device 1 forwards the first message to the corresponding access network device.
  • the access network devices can interact with each other, for example, the identifiers of other access network devices adjacent to each access network device can be obtained. If the access network device 1 determines that the identifier of the access network device carried in the first message is the same as the identifier of a certain adjacent access network device (for example, the access network device 2), the access network device 1 may The first message is forwarded to the access network device 2, so that the access network device 2 determines the location of the terminal device according to the first message.
  • a certain adjacent access network device for example, the access network device 2
  • the access network devices may not need to know the identities of other adjacent access network devices.
  • the access network device 1 determines that the identity of the access network device carried in the first message is different from the identity of the access network device 1, or the cell identity carried in the first message is any of the identity of the access network device 1. If the identity of a cell is different, the access network device 1 can send the first message to other neighboring access network devices. After receiving the first message, the other access network devices will follow the instructions in the first message. The identification is determined, and when the identification indicated in the first message is the same as its own identification, the location of the terminal device is determined according to the first message; otherwise, the first message is continued to be forwarded.
  • step S35 and step S36 only need to be executed by choosing one of them. Specifically, step S35 or step S36 can be determined according to step S34, which is not limited here.
  • S35 is performed, and in Figure 3, the access network device 1 sends the first message to the AMF network element, so that the AMF network element forwards the first message to the LMF (AMF network element forwards the first message
  • AMF network element forwards the first message
  • step S36 is represented by a dotted line
  • the positioning server in step S36 is LMF as an example.
  • the terminal device may send the first message with different message types to the access network device according to the first indication information sent by the core network device for instructing the positioning server.
  • the access network device can directly determine the location of the terminal device according to the first message, so that the first message is not required to be forwarded, and the delay overhead caused by the forwarding process can be reduced .
  • FIG. 3 illustrates how the core network equipment and terminal equipment should do when both the access network and the core network have network elements with positioning functions.
  • FIG. 4 to introduce a flowchart of another example of the communication method provided by the embodiment of the present application.
  • the first network device described below may be the access network device 1 in the positioning architecture shown in FIG. 2D.
  • the terminal device described below may be the terminal device in the positioning architecture shown in FIG. 2D, and the network element with positioning function in the access network described below may be the access network device 1 or the access network device 2.
  • the network element with a positioning function in the core network described below may be an LMF, and the core network device described below may be an AMF network element.
  • the method can be executed by two communication devices.
  • these two communication devices please refer to the embodiment shown in FIG. 3, which will not be repeated here.
  • the method is executed by the access network device 1 and the terminal device as an example, that is, the first communication device is the access network device 1 and the second communication device is the terminal device as an example.
  • the second network device determines a positioning server used for positioning the terminal device.
  • the positioning server is used to position the terminal device, and the second network device may be a core network device, for example, an AMF network element or an LMF network element.
  • the positioning server can be an LMF or an access network device, such as access network device 1 or access network device 2.
  • access network device 1 or access network device 2 can also be other network devices, which is not limited here.
  • the second network device is used as a core network device, for example, the second network device is an AMF network element.
  • step S41 is similar to step S31, and will not be repeated here.
  • the second network device sends second indication information, and the first network device receives the second indication information.
  • the second indication information is used to indicate that the positioning server is a network element with a positioning function in the core network, for example, LMF, or the second indication information is used to indicate that the positioning server is a network element with a positioning function in the access network.
  • the network element with the positioning function is, for example, the access network device 1 or the access network device 2, and the first network device may be the access network device 1.
  • the second instruction information is sent to the first network device
  • the first network device is the access network device 1. Therefore, in this embodiment of the present application, the second instruction information is identifiable by the access network device
  • the type of the message for example, the second indication information can use the general packet radio service tunnelling protocol (GTP) protocol, of course, it can also be the type of the message that can be recognized by other access network equipment, which is not used here. limit.
  • GTP general packet radio service tunnelling protocol
  • the second indication information may include but is not limited to the following six situations:
  • the second indication information may include the identification of the positioning server.
  • the second indication information may include the type of the positioning server.
  • the second indication information may include the identifier of the positioning session (session).
  • the first to third cases in the second indication information are the same as the first to third cases in the first indication information, and will not be repeated here.
  • the second indication information may include the identity of the cell supported by the positioning server.
  • the second indication information can carry the identity of the cell supported by the access network device.
  • the identity of the cell can be CID or GCI, Or PCI, I won’t repeat them here.
  • the second indication information may carry the identity of cell A or the identity of other cells of the access network device 1.
  • the second indication information may include the identifier of the core network device interacting with the positioning server.
  • the identification of the core network device interacting with the network element may be carried in the second indication information.
  • the second indication information may carry the identifier of the AMF network element interacting with the LMF, or may also be the identifier of other core network devices interacting with the LMF.
  • the second indication information may be a combination of any two or three or four or five of the aforementioned five situations. The content of the specific combination will not be repeated here.
  • the second indication information may be dedicated signaling, for example, GTP configuration signaling; the second indication information may also be an LPP message, or information that the LPP message is encapsulated in a GTP encapsulation format, or, The second indication information may also be an indication by adding a certain field to any message that the AMF network element interacts with the first network device.
  • the specific form of the second indication information is not limited.
  • the first indication information can be used not only to indicate the type of the first message, but also to indicate the positioning server determined by the AMF network element. Therefore, from this perspective , the first indication information and the second indication information may also be the same message.
  • the second network device may implicitly instruct the positioning server by whether to send the second instruction information. For example, when the second network device sends the second indication information, it indicates that the positioning server is a network element with a positioning function in the core network, such as an LMF. When the second network device does not send the second indication information, it indicates that the positioning server is a network element with a positioning function in the access network, for example, the access network device 1.
  • the positioning server is located in the network element of the positioning function in the access network.
  • configuration is performed through OAM functional network elements.
  • the second indication information is used as the core network device (for example, the AMF network element) to generate and send to the access network device 1.
  • this The second instruction information may not be acquired through step S41 to step S42.
  • the second indication information may be obtained from other access network equipment.
  • the AMF network element may first send the second indication information to other access network equipment, for example, access network equipment 2, and then the access network equipment 2 forwards the second indication information Give access network equipment 1.
  • the second indication information may also be obtained from configuration information.
  • the configuration information may be configuration information sent by the core network device to the access network device 1, or configuration information pre-stored in the memory of the access network device 1, for example, it may be obtained from OAM configuration.
  • the second indication information may also be predefined, such as protocol definition.
  • the LMF as the positioning server of the terminal device
  • the transmission of the positioning message between the terminal device and the base station is carried by the RRC message.
  • the carrying by the RRC message may directly include positioning-related information in the RRC message, or the LPP message may be carried in the RRC message.
  • the second indication information is obtained from the AMF network element as an example for description.
  • the first network device determines a positioning server according to the second indication information.
  • the access network device 1 After the access network device 1 receives the second indication information or obtains the second indication information, it may determine the positioning server according to the second indication information.
  • the second indication information may include many situations. Therefore, there are also many ways for the access network device to determine the positioning server according to the second indication information, which may specifically include but are not limited to the following Six types:
  • the access network device 1 determines the positioning server according to the identification of the positioning server carried in the second indication information.
  • the access network device 1 determines that the identification of the positioning server included in the second indication information is the identification of the first network device. If the access network device 1 determines that the positioning server is the access network device 1.
  • the access network device 1 determines that the identification of the positioning server indicated in the second indication information is different from the identification of the access network device 1, and the identification of the positioning server is that of a network element with a positioning function in the core network. ID, the access network device 1 determines that the positioning server is a network element with a positioning function in the core network.
  • the access network device 1 can learn the identity of the core network device (such as LMF). If the access network device 1 determines that the identity of the positioning server in the second indication information is different from its own identity, the access network device 1 determines the identity Whether the identification of the positioning server is the same as the identification of the LMF, if they are the same, the access network device 1 determines that the positioning server is the LMF.
  • the core network device such as LMF
  • the access network device 1 determines that the identification of the positioning server indicated in the second indication information is different from the identification of the access network device 1, and the identification of the positioning server is the same as the identification of the network element with the positioning function in the core network Is different, the access network device 1 determines that the positioning server is a network element with a positioning function in the access network in addition to the first network device, and in addition to the first network device, a network element with a positioning function in the access network
  • the identifier of the meta is the same as the identifier of the positioning server indicated in the second indication information.
  • the access network device 1 can learn the identity of other access network devices (for example, the access network device 2). If the access network device 1 determines that the identity of the positioning server in the second indication information is different from its own identity, then The network access device 1 determines whether the identification of the positioning server is the same as the identification of the access network device 2, and if they are the same, the access network device 1 determines that the positioning server is the access network device 2. It should be understood that the access network device 2 refers to an access network device different from the access network device 1, and does not refer to a specific access network device.
  • the access network device 1 determines the positioning server according to the type of the positioning server carried in the second indication information.
  • the access network device 1 determines the positioning server according to the identifier of the positioning session carried in the second indication information.
  • the second to third determination methods are the same as the second to third determination methods in step S33, and will not be repeated here.
  • the access network device 1 determines the positioning server according to the identifier of the cell supported by the positioning server carried in the second indication information.
  • the access network device 1 determines that the identity of the cell supported by the positioning server included in the second indication information is the same as the identity of the cell supported by the access network device 1, then the access network device 1 determines the positioning server For access network equipment 1.
  • the access network device 1 determines that the identity of the cell supported by the positioning server included in the second indication information is different from the identity of the cell supported by the access network device 1, then the access network device 1 determines the positioning server In addition to the access network device 1, a network element with a positioning function in the access network, and, in addition to the first network device, a cell that is supported by the network element with a positioning function in the access network
  • the identifier is the same as the identifier of the cell supported by the positioning server indicated in the second indication information.
  • the access network device 1 can learn the identity of the cell supported by other access network devices (for example, the access network device 2), if the access network device 1 determines the identity of the cell supported by the positioning server in the second indication information If it is different from the identity of any cell supported by itself, the access network device 1 determines whether the identity of the cell supported by the positioning server is the same as the identity of one of the cells supported by the access network device 2. If the same, then access The network device 1 determines that the positioning server is the access network device 2.
  • the access network device 2 determines that the access network device 2.
  • the access network device 1 determines the positioning server according to the identifier of the core network device that interacts with the positioning server carried in the second indication information.
  • the access network device 1 determines that the second indication information includes the identity of the core network device interacting with the positioning server, the access network device determines that the positioning server is a network element with a positioning function in the core network.
  • the access network device 1 can obtain the range of the identifier of the access network device and the range of the identifier of the core network device.
  • the range of the identifier of the access network device is 0-256, and the identifier of the core network device If it is greater than 256, when the access network device 1 determines that the identifier of the network device included in the second indication information is greater than 256, then the access network device 1 can determine that the positioning server is a network element with a positioning function in the core network, for example, LMF .
  • the access network device 1 can compare with the identity of each access network device to determine whether the identity is the same. If the identifiers of the networked devices are different, the access network device 1 can determine that the positioning server is a network element with a positioning function in the core network, for example, it is an LMF.
  • the access network device 1 may also use other methods to determine the positioning server, which is not limited here.
  • the terminal device sends a first message, and the first network device receives the first message.
  • the first message is used by the positioning server to determine the location of the terminal device.
  • the description of the first message is the same as the first message in the embodiment shown in FIG. 3, and will not be repeated here.
  • the manner in which the terminal device obtains the first message and sends the first message is similar to that in step S34, and will not be repeated here.
  • the first message can only be an RRC message. It may also be a message after the LPP message is RRC encapsulated, or the first message may be another type of message that can be recognized by the access network device.
  • the first network device determines to process the first message according to the second indication information.
  • the access network device 1 determines that the positioning server is the access network device 1 according to the second indication information, the access network device 1 positions the terminal device according to the first message.
  • the first network device determines to forward the first message according to the second indication information.
  • the access network device 1 determines that the positioning server is not the access network device 1 according to the second indication information, the access network device 1 forwards the first message to the positioning server.
  • the access network device 1 determines that the positioning server is the access network device 2
  • the access network device 1 sends the first message to the access network device 2 to determine the location of the terminal device through the access network device 2
  • the access network device 1 determines that the positioning server is the LMF
  • the access network device 1 sends the first message to the AMF network element, and forwards the first message to the LMF through the AMF network element to determine the location of the terminal device through the LMF.
  • the access network device 1 forwards the first message to the AMF network element.
  • step S45 is taken as an example, and step S46 is represented by a dotted line.
  • the access network device may determine whether to directly respond to the first message according to the second indication information used to instruct the positioning server. Message processing still needs to forward the first message to other devices. In this way, when the second indication information indicates that the positioning server is the access network device, the access network device can directly determine the location of the terminal device according to the first message after receiving the first message, so that the first message may not be forwarded.
  • One message can reduce the delay overhead caused by the forwarding process.
  • FIG. 4 illustrates how the core network equipment and the access network equipment should do when both the access network and the core network have network elements with positioning functions.
  • FIG. 5 to introduce a flowchart of another example of the communication method provided by the embodiment of the present application.
  • the first network device described below may be the access network device 1 in the positioning architecture shown in FIG. 2D
  • the second network device described below may be the access network device 2 in the positioning architecture shown in FIG. 2D
  • the third network device described below may be the LMF in the positioning architecture shown in FIG. 2D
  • the terminal device described may be the terminal device in the positioning architecture shown in FIG. 2D.
  • the network element with positioning function in the access network described below may be the access network device 1 or the access network device 2.
  • the network element with the positioning function in the core network described above may be an LMF
  • the core network device described below may be an AMF network element.
  • the method can be executed by two communication devices.
  • these two communication devices please refer to the embodiment shown in FIG. 3, which will not be repeated here.
  • the method is executed by the access network device 1 and the access network device 2 as an example, that is, the first communication device is the access network device 1 and the second communication device is the access network device 2. Take the description as an example.
  • the first network device sends a second request message to the second network device, and the second network device receives the second request message.
  • the second request message is used to obtain capability information of the second network device.
  • the cell A of the access network device 1 provides services for the terminal device, that is, the cell A of the access network device 1 is the serving cell of the terminal device.
  • the location of the terminal device moves, for example, at the second moment, when the terminal device moves from cell A of access network device 1 to the cell of access network device 2, a cell handover process is triggered at this time.
  • the access network device 1 may send a second request message to the access network device 2 to obtain the capability information of the access network device 2 to determine whether the terminal device can be handed over to the cell of the access network device 2.
  • the second request message may carry the identification of the access network device 1, for example, the ID or index number of the access network device 1.
  • the second network device sends a second response message, and the first network device receives the second response message.
  • the second response message includes capability information of the second network device, and the capability information includes the positioning mode supported by the second network device and/or the positioning accuracy supported by the second network device,
  • the second response message may also include other content, for example, it may include the identification of the second network device, for example, the ID, index number, etc. of the second network device, and may also include information for indicating the second network device. Whether the positioning function has passed the LMF certification and other information, we will not give examples one by one here.
  • steps S501 to S502 are optional steps, that is, they are not necessary to be performed, and are represented by dotted lines in FIG. 5.
  • the first network device sends a first request message to the second network device, and the second network device receives the first request message.
  • the access network device 1 determines that the positioning accuracy and/or positioning mode of the access network device 2 meets the positioning requirements of the terminal device according to the capability information in the second response message, the access network device 1 determines to request the access network device 2 The terminal device is positioned, so that the access network device 1 sends the first request message to the access network device 2.
  • the first request message is a handover request, which is used to switch the serving base station of the terminal device from the access network device 1 to the access network device 2.
  • the access network device 1 sends the first request message to the access network device 2
  • other judgment procedures may be included.
  • the cell reference signal of the terminal device to the access network device 2 can be determined according to the report measurement of the terminal device. Whether the received power meets the handover condition, etc., the judgment process is the same as that in the prior art, and will not be repeated here.
  • the first request message also includes a positioning service switching instruction, which is used to indicate that the terminal device is performing a positioning service and requesting that the positioning service of the terminal device be switched to the access network device 2.
  • the first request message includes the identification of the positioning server of the terminal device and/or the positioning context information used for the access network device 1 to locate the terminal device.
  • the positioning server of the terminal device is the access network device 1
  • the identification of the positioning server is the identification of the access network device 1.
  • the positioning server may also be another access network device that the terminal device accesses before accessing the access network device 1, which is not limited here.
  • the positioning context information includes at least one of the following information:
  • the positioning technology may be OTDOA positioning technology, GNSS positioning technology, assisted GNSS (assisted-GNSS, A-GNSS) positioning technology or ECID positioning technology, or other positioning technology, which is not limited here.
  • the positioning accuracy may be cell-level accuracy, or it may be 100 meters, or it may be 50 meters or the like.
  • the access network device 1 uses OTDOA positioning technology to locate the terminal device, and the information used when the access network device 1 locates the terminal device may be positioning reference signal (positionging reference signal, PRS) configuration information of different sending sites And the identification information of the sending site; the access network device 1 uses ECID positioning technology to locate the terminal device, and the information used when the access network device 1 locates the terminal device is the time difference between the terminal device and the serving cell, RSRP, sounding signal for serving cell, etc.
  • positioning reference signal positioning reference signal
  • PRS positioning reference signal
  • PRS positioning reference signal
  • the access network device 1 uses ECID positioning technology to locate the terminal device, and the information used when the access network device 1 locates the terminal device is the time difference between the terminal device and the serving cell, RSRP, sounding signal for serving cell, etc.
  • the information used when the access network device 1 locates the terminal device may be related to the positioning technology and/or positioning accuracy used by the access network device 1, and no examples are given here.
  • the terminal device may include the RSTD measurement result reported by the terminal device, the measurement result of the time difference between the receiving and sending signals between the terminal device and the serving cell, and the RSRP measurement result.
  • the specific measurement result reported is related to the measurement configuration of the terminal device by the access network device 1.
  • Access network equipment 1 is used to locate auxiliary information for terminal equipment.
  • it may include time reference, satellite ephemeris, reference locations, and so on.
  • the positioning context information may also include other information, which is not limited here.
  • the positioning context information may also be called other names, for example, positioning information or context information, etc.
  • the name of the positioning context information is not limited in the embodiment of the present application.
  • the foregoing positioning service switching instruction may be an explicit field in the switching request message used to indicate the positioning service, or it may be implicitly indicating that the positioning service needs to be switched.
  • the implicit indication of the positioning service switching indication can be identified through the positioning service-related parameters in the switching request message.
  • the second network device sends a third request message to the network element with the positioning function in the core network, and the network element with the positioning function in the core network receives the third request message.
  • the third request message is used for a network element with a positioning function in the core network to determine whether to approve the positioning of the terminal device by the second network device.
  • the access network device 2 After the access network device 2 receives the first request message sent by the access network device 1, the access network device 2 can send the third request message to the LMF, so that the LMF can authenticate the handover request and ask whether the LMF agrees to this request. Switching of positioning services.
  • the third request message may include the identity of the terminal device and/or the identity of the first network device and/or the identity of the serving cell where the terminal device is located.
  • the identity of the terminal device and/or the identity of the first network device and/or the identity of the serving cell where the terminal device is located may include other information, for example, it may also include the positioning accuracy required by the terminal device, etc., which is not limited here.
  • Step S504 is not necessary.
  • the bearer needs to be updated, that is, the network element with the positioning function in the core network is asked through the third request message whether to agree to the positioning service handover. If the positioning service switching is agreed, the network element with the positioning function in the core network and the bearer of the access network are updated to the second network device, or the control signaling is updated to the second network device.
  • the network element with the positioning function in the core network sends a third response message, and the second network device receives the third response message.
  • the LMF After the LMF receives the third request message, it can determine whether to agree to the switching of the positioning service according to the information carried in the third request message.
  • the LMF may obtain the identity of the source positioning server (that is, the identity of the access network device 1) from the third request message, so as to obtain the load of the positioning service in the access network device 1 and the access network device 2.
  • the LMF determines that the load of the access network device 1 is less than the load of the access network device 2, the LMF can reject the positioning service switch; if the load of the access network device 2 is less than the load of the access network device 1, LMF can agree to the switch of positioning services.
  • the LMF determines that the load of the access network device 1 and the access network device 2 both exceed the preset load, the LMF can determine that the terminal device is positioned by the LMF or other access network devices with positioning functions .
  • the LMF may also determine whether to agree to the switching of the positioning service according to other information, for example, the priority of the terminal device, the priority of the access network device, etc., which are not limited in this application.
  • the LMF After the LMF obtains the determination result according to the information carried in the third request message, it can send a third response message to the access network device 2, and the third response message indicates the determination result of the LMF.
  • the determination result is used to indicate whether the LMF agrees to the terminal device positioning by the access network device 2, that is, whether the LMF agrees to the positioning service switching this time can also be used to indicate whether the terminal device is positioned by the LMF.
  • steps S504 to S505 are optional steps, that is, they are not necessary to be performed, and are represented by dotted lines in FIG. 5.
  • S506 The second network device generates a first response message.
  • the second network device may generate the first response message according to the third response message.
  • the access network device 2 When the access network device 2 receives the third response message sent by the LMF, it generates the second response message according to the determination result indicated in the third response message, or after receiving the first request message, according to the relevant parameters in the first request message. A first response message corresponding to a request message.
  • the first response message may include but is not limited to the following three situations:
  • the first response message is used to instruct the second network device to locate the terminal device.
  • the first response message generated by the access network device 2 may be: a message for instructing the access network device 2 to locate the terminal device .
  • the auxiliary information used by the access network equipment 2 and the access network equipment 1 may be different. Therefore, in order to ensure accurate positioning of the terminal equipment, the access network equipment The device 2 may also carry auxiliary information required by the access network device 2 to locate the terminal device in the first response message.
  • the auxiliary information please refer to the corresponding content in step S503, which will not be repeated here.
  • the first response message is used to instruct the third network device to locate the terminal device.
  • the third network device is a network element with a positioning function in the access network and the core network in addition to the first network device and the second network device.
  • the network element with the positioning function in the core network is the LMF
  • the third network device may be the LMF; or, if the positioning architecture shown in FIG. 2D also includes If other access network devices have functions, the third network device may be other access network devices.
  • the third network device may be determined according to the third response message.
  • the LMF does not agree with the access network device 2 to locate the terminal device, the LMF will indicate the network element used to locate the terminal device in the third response message.
  • the third network device is LMF; if the third response message indicates that the network element used to locate the terminal device is the access network In addition to the access network equipment 1 and the access network equipment 2, the third network equipment is the other access network equipment.
  • the first response message is used to indicate that a network device other than the first network device is refused to locate the terminal device.
  • the first response message can also be understood as that the first response message is used to indicate that the handover of the positioning service is rejected.
  • the serving base station of the terminal device is switched from the access network device 1 to the access network device 2, and the switching of the positioning service of the terminal device is performed together, that is, the terminal The positioning service of the equipment is switched synchronously with the handover of the serving base station of the terminal equipment.
  • the terminal device cannot handover the serving base station. Therefore, in this case, the first response message is equivalent to indicating that the handover process is an error.
  • the positioning service function does not change, and all other bearers and connections to the LMF are switched to the target base station, that is, the access network On device 2.
  • the original access network device 1 or the network element used for the location service function in the access network will not change.
  • the access network device 2 sends the received positioning-related information to the access network device 1 or the network element used for the positioning service function in the access network, and the access network device 1 or the access network is used for
  • the network element of the positioning service function sends the positioning result to the access network device 2 after completing the positioning according to the positioning-related information.
  • the access network device 2 sends the positioning result to the LMF.
  • the access network device 1 when the access network device 1 sends the first request message to the access network device 2, it may also carry another indication information in the first request message. It is used to indicate whether the access network device 1 allows such switching of the access network device 2, that is, the other indication information is used to indicate whether the location service function can not change when the terminal device is switched. If the other indication information indicates that this kind of handover is allowed, the access network device 2 can perform the foregoing implementation process.
  • the second network device sends the first response message to the first network device, and the first network device receives the first response message.
  • the first network device forwards the first response message to the terminal device, and the terminal device receives the first response message.
  • the access network device 1 may send the first response message or the positioning-related information in the first response message to the access network device 1.
  • the access network device 1 can obtain The auxiliary information of the access network device 2 is sent to the terminal device through RRC reconfiguration or corresponding RRC signaling, and the terminal device can be instructed to use the access network device 2 for positioning.
  • the access network device 1 may indicate to the terminal device to use the third network device for positioning.
  • the access network device 1 may send an error message to the terminal device to notify the terminal device that it cannot perform this time. Switch.
  • step S508 is an optional step, that is, it is not necessary to be performed, and is represented by a dotted line in FIG. 5.
  • the first network device sends a handover request according to the first response message.
  • the handover request sent by the access network device 1 is also different.
  • the access network Device 1 sends a handover request to access network device 2.
  • the first response message is the second case in step S506, that is, the first response message is used to instruct the third network device to locate the terminal device. If the third network device is the LMF, the access network device 1 sends to the LMF Switch request.
  • the access network device 1 does not send a handover request , Or the sent switching request indicates that the location service function of the location service does not switch.
  • the information of the location service function may be included in the switching request, which may specifically include, for example, CID, or PCI, or the ID of the location service function.
  • the access network device 1 sends a handover request to the access network device 2.
  • the access network device 1 may carry information such as the first message or the number of retransmissions of the first message in the handover request.
  • the access network device 1 may also send the first message or information such as the number of retransmissions of the first message to the access network device 2 after sending the handover request.
  • the second network device sends indication information for indicating successful switching of the positioning service to the network element with the positioning function in the core network.
  • the access network device 2 After the access network device 2 receives the handover request sent by the access network device 1, and successfully switches the positioning service of the terminal device to the access network device 2, the access network device 2 can send instructions to the LMF to confirm the positioning service The switch is successful.
  • step S510 is an optional step, that is, it is not necessary to be performed, and is represented by a dotted line in FIG. 5.
  • the access network device that provides services for the terminal device can realize the switching of the positioning service of the terminal device through interaction with other access network devices, so that the terminal device can be maintained The continuity of the positioning service in the mobile state.
  • FIG. 6 introduce a flowchart of another example of the communication method provided by the embodiment of the present application.
  • the switching of the positioning service of the terminal device is realized through the interaction between the access network device that provides services for the terminal device and the network element with the positioning function in the core network.
  • the first network device described below may be the access network device 1 in the positioning architecture shown in FIG. 2D
  • the second network device described below may be the LMF in the positioning architecture shown in FIG. 2D
  • the third network device described below may be the access network device 2 in the positioning architecture shown in FIG. 2D
  • the terminal device described may be the terminal device in the positioning architecture shown in FIG. 2D.
  • the network element with positioning function in the access network described below may be the access network device 1 or the access network device 2.
  • the network element with the positioning function in the core network described above may be an LMF
  • the core network device described below may be an AMF network element.
  • the method can be executed by two communication devices.
  • these two communication devices please refer to the embodiment shown in FIG. 3, which will not be repeated here.
  • the method is executed by the access network device 1 and the LMF as an example, that is, the first communication device is the access network device 1 and the second communication device is the LMF as an example.
  • the first network device sends a first request message to the second network device, and the second network device receives the first request message.
  • the first request message is similar to the first request message in step S503, and will not be repeated here. Please refer to the description of the first request message in step S503.
  • the first request message is sent to another access network device, that is, access network device 2, which is implemented in this application
  • the first request message is sent to the LMF, and is used to request the LMF to use another network device (for example, the LMF or the access network device 2) to locate the terminal device.
  • the first request message may also carry the reason why the access network device 1 requests the handover.
  • the reason for the request for handover may be that a cell handover occurs in the terminal device, or the load of the positioning service in the access network device 1 is too large, or other errors occur, which is not limited here.
  • the second network device determines a network device used to locate the terminal device.
  • the LMF after the LMF receives the first request message sent by the access network device 1, it can obtain the load of the positioning service in each access network device, so as to obtain information from at least one access network whose load is less than the preset threshold.
  • an access network device is determined as a network device for positioning the terminal device. If the load of each access network device is greater than or equal to the preset threshold, it is determined to use the LMF to locate the terminal device.
  • the LMF determines that the load of the access network device 2 is less than a preset threshold, the LMF determines to use the access network device 2 to locate the terminal device.
  • the LMF may determine the network device for positioning the terminal device according to the serving cell of the terminal device.
  • the LMF can determine the serving cell that the terminal device currently accesses according to the ID of the terminal device. If the serving cell is the cell corresponding to the access network device 2, the LMF determines to use the access network Device 2 locates the terminal device. If the serving cell where the terminal device is located cannot be determined, it is determined to use the LMF to locate the terminal device.
  • the LMF determines that the network device used for positioning the terminal device is the third network device (that is, the access network device 2) as an example.
  • the second network device sends a fourth request message to the third network device, and the third network device receives the fourth request message.
  • the fourth request message is used to instruct the third network device to locate the terminal device.
  • the LMF may send a request message to the access network device 2 to request the access network device 2 to locate the terminal device.
  • the fourth request message may include the identity of the terminal device, and/or the positioning accuracy required by the terminal device, and/or the identity of the serving cell where the terminal device is located.
  • the third network device sends a fourth response message, and the second network device receives the fourth response message.
  • the fourth response message is used to indicate whether the third network device agrees to locate the terminal device.
  • the access network device 2 can determine whether to agree to locate the terminal device using the information carried in the fourth request message. For example, the access network device 2 can determine whether the positioning accuracy it can provide meets the positioning accuracy required by the terminal device. If so, the access network device 2 can agree to locate the terminal device; otherwise, the access network device 2 can Refuse to locate the terminal device.
  • the access network device 2 can also adopt other determination methods, which are not limited here.
  • the second network device generates a first response message.
  • the LMF may generate the first response message according to the fourth response message sent by the access network device 2. For example, if the access network device 2 agrees to locate the terminal device, the first response message is used to instruct to use the access network device 2 to locate the terminal device; if the access network device 2 refuses to locate the terminal device, then The first response message is used to instruct to use LMF to locate the terminal device.
  • the LMF can also directly generate the first response message without using the fourth response message. For example, after the LMF receives the first request message sent by the access network device 1 and determines to use the LMF to locate the terminal device, the LMF directly generates the first response message, and instructs the LMF to locate the terminal device through the first response message.
  • step S63 and step S64 are optional steps, that is, they are not necessary to be performed, and are represented by dotted lines in FIG. 6.
  • the second network device sends the first response message to the first network device, and the first network device receives the first response message.
  • the first network device forwards the first response message to the terminal device, and the terminal device receives the first response message.
  • the first network device sends a handover request according to the first response message.
  • Steps S66 to S68 are similar to steps S507 to S509, and will not be repeated here.
  • the access network device 1 sends a handover request to the access network device 2 as an example.
  • the access network device that provides services for the terminal device can interact with the LMF to switch the positioning service of the terminal device, so as to keep the terminal device in the mobile state.
  • the continuity of the positioning business when the access network equipment cannot locate the terminal equipment, the positioning can also be switched back to the LMF, which further ensures the continuity of the positioning service.
  • the switching of the access network device that provides services for the terminal device and the switching of the positioning service are performed simultaneously, that is, when When the access network device that the terminal device provides services is switched, the positioning server that locates the terminal device also switches.
  • the switching of the access network equipment that provides services for the terminal equipment and the switching of the positioning service may be two asynchronous processes, that is, the two are independent.
  • FIG. 7 to introduce a flowchart of another example of the communication method provided by the embodiment of the present application.
  • the first network device described below may be the access network device 1 in the positioning architecture shown in FIG. 2D
  • the second network device described below may be the LMF in the positioning architecture shown in FIG. 2D
  • the third network device described below may be the access network device 2 in the positioning architecture shown in FIG. 2D
  • the terminal device described may be the terminal device in the positioning architecture shown in FIG. 2D.
  • the network element with positioning function in the access network described below may be the access network device 1 or the access network device 2.
  • the network element with the positioning function in the core network described above may be an LMF
  • the core network device described below may be an AMF network element.
  • the method can be executed by two communication devices.
  • these two communication devices please refer to the embodiment shown in FIG. 3, which will not be repeated here.
  • the method is executed by the access network device 1 and the access network device 2 as an example, that is, the first communication device is the access network device and the second communication device is the access network device. 2 as an example.
  • the first network device sends a second request message to the second network device, and the second network device receives the second request message.
  • the second network device sends a second response message, and the first network device receives the second response message.
  • Steps S701 to S702 are similar to steps S501 to S502, and will not be repeated here.
  • the first network device sends a first request message to the second network device, and the second network device receives the first request message.
  • the first request message is similar to the first request message in step S503, and will not be repeated here.
  • the first request message further includes a location service indication, which is used to indicate whether to use the second network device to locate the terminal device.
  • the access network device that will provide services for the terminal device is switched from the access network device 1 to the access network device 2, and the positioning service of the terminal device is switched.
  • the two processes are independent. It is possible to switch only the access network equipment that provides services for the terminal equipment, or only the positioning service of the terminal equipment may be switched, or it may also be synchronized to switch to the access network equipment that provides services for the terminal equipment and the positioning service of the terminal equipment.
  • the first request message may carry indication information, which is used to instruct the access network device 1 to allow the access network device 2 to only switch to the access network device that provides services for the terminal device
  • the positioning service is not switched, or it is used to indicate that the access network device 2 is allowed to switch only the positioning service, or the access network device 2 is allowed to simultaneously switch the positioning service and the access network device that provides services for the terminal device.
  • the location service indication may be a field in the first request message used to indicate whether to use the second network device to locate the terminal device, or it may be an implicit indication. If it is implicitly indicated, the first request message includes positioning-related information to indicate whether to use the second network device to locate the terminal device.
  • the first request message may include the information of the location service function as the information of the access network device 1, or the information of another access network device, such as the ID of the access network device. If the location service function information included in the first request message is the access network device 2, it means that the location service function is switched to the access network device 2.
  • the access network device 2 can send the location service parameters to the access network device 1 or the network element with the location service function before the handover, and send the location result to The method for accessing the network device 2 is as described above and will not be repeated here.
  • the second network device sends a third request message to the network element with the positioning function in the core network, and the network element with the positioning function in the core network receives the third request message.
  • a network element with a positioning function in the core network sends a third response message, and the second network device receives the third response message.
  • the second network device generates a first response message.
  • the second network device may generate the first response message according to the third response message.
  • the first response message may include but is not limited to the following four situations:
  • the first response message is used to instruct the second network device to locate the terminal device.
  • the first response message is the same as the first case of the first response message in step S506, and will not be repeated here.
  • the first response message is used to indicate that the second network device refuses to locate the terminal device, but supports the forwarding of the positioning message.
  • the positioning message is used to determine the location of the terminal device, which is the implementation shown in FIG. 3. The first message in the example will not be repeated here.
  • the access network device that provides services for the terminal device can be switched from the access network device 1 to the access network device 2, but the positioning service of the terminal device is still provided by the access network device 1. Moreover, when the access network device that provides services for the terminal device is switched to the access network device 2, the positioning message sent by the terminal device will first be sent to the access network device 2. At this time, the access network device 2 can locate the The message is forwarded to the access network device 1.
  • the first response message is used to indicate that the second network device refuses to locate the terminal device and refuses to forward the positioning message.
  • the access network device that provides services for the terminal device can be switched from the access network device 1 to the access network device 2, but the positioning service of the terminal device is still provided by the access network device 1. Furthermore, when the access network device that provides services for the terminal device is switched to the access network device 2, the access network device 2 will not forward the positioning message sent by the terminal device to the access network device 1.
  • the first response message is used to instruct a third network device to locate the terminal device.
  • the third network device is a network element with a positioning function in the access network or core network, for example, LMF or access network Access network equipment other than access network equipment 1 and access network equipment 2.
  • the first response message is the same as the second case of the first response message in step S506, and will not be repeated here.
  • the second network device sends a first response message to the first network device, and the first network device receives the first response message.
  • the first network device forwards the first response message to the terminal device, and the terminal device receives the first response message.
  • Steps S707 to S708 are similar to steps S507 to S508, and will not be repeated here.
  • the first network device sends a handover request according to the first response message.
  • the handover request sent by the access network device 1 is also different.
  • the access network device Device 1 sends a handover request to access network device 2, and the handover request is used to request that the access network device that will provide services for the terminal device be switched from access network device 1 to access network device 2, and to position the terminal device The service is switched to the access network device 2.
  • the second network device When the first response message is the second situation in step S706, that is, the second network device refuses to locate the terminal device, but supports the forwarding of the positioning message. Since the second network device is the access network device 2, then The network access device 1 may send to the access network device 2 an access service switching request for requesting that the access network device that will provide services for the terminal device be switched from the access network device 1 to the access network device 2 without switching the positioning business.
  • the access network device 1 may send to the access network device 2 an access service switching request for requesting that the access network device that will provide services for the terminal device be switched from the access network device 1 to the access network device 2, and send it to the LMF Location switching request, requesting LMF to locate the terminal device.
  • the access network Device 1 may send to access network device 2 an access service switching request for requesting that the access network device that will provide services for the terminal device be switched from access network device 1 to a third network device, and request that the third network device pair The terminal device performs a positioning service switching request for positioning.
  • the access network device 1 sends a request to the access network device 2 to request that the access network device that will provide services for the terminal device is switched from the access network device 1 to the access network device 2. , Without switching the positioning service as an example.
  • the terminal device sends a positioning message to the second network device, and the second network device receives the positioning message.
  • the access network device that provides services for the terminal device When the access network device that provides services for the terminal device is switched from the access network device 1 to the access network device 2, because the access network device 2 refuses to locate the terminal device, but supports the forwarding of the positioning message, the terminal After the device generates the positioning message, it can send the positioning message to the access network device 2.
  • the location message may carry the identification of the access network device 1 or not carry the identification of the access network device 1, and the access network device 2 knows that the location service function is located in the access network device 1.
  • the description of the positioning message is similar to the first message in the embodiment shown in FIG. 3, and the positioning message is a type of message that can be recognized by the access network device, and will not be repeated here.
  • the second network device sends the positioning message to the first network device, and the first network device receives the positioning message.
  • the access network device 2 After the access network device 2 receives the positioning message, it forwards the positioning message to the access network device 1 according to the identifier carried in the positioning message.
  • S712 The first network device performs positioning calculation on the terminal device according to the positioning message.
  • the first network device only performs positioning calculation on the terminal device according to the positioning message, which is equivalent to that the second network device uses the positioning calculation function of the first network device to provide the terminal device with a positioning function.
  • the first network device sends the positioning result of the terminal device to the second network device, and the second network device receives the positioning result.
  • the second network device sends the positioning result to the AMF network element or LMF, and the AMF network element or LMF receives the positioning result.
  • the first network device may also directly send the positioning result to the AMF network element.
  • the ID of the terminal device can be carried in the positioning result, and the ID of the terminal device can be the ID when the terminal device is connected to the access network device 1
  • the access network device 1 can locate the terminal device. The ID of the device is incremented by 1, and then the processed ID is used to indicate the terminal device.
  • Steps S710 to S714 are optional steps, that is, they are not necessarily performed. It is represented by a broken line in FIG. 7.
  • the positioning service of the terminal device may not be switched, so that when the terminal device is kept in the mobile state, the terminal device is positioned by the previously accessed access network device, which can ensure The continuity of the positioning service of the terminal equipment.
  • the second network device may also be a core network device, such as an LMF, and correspondingly, the third network device is an access network device, such as an access network device 2.
  • the specific execution process of the communication method may be similar to the embodiments shown in FIG. 6 and FIG. 7, and will not be repeated here.
  • the methods provided in the embodiments of the present application are introduced from the perspective of the positioning server, the access network device, the terminal device, and the interaction among the three.
  • the positioning server, the access network device, and at least one terminal device may include a hardware structure and/or a software module, and a hardware structure, a software module, or a hardware structure plus a software module To achieve the above functions. Whether a certain function of the above-mentioned functions is executed by a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraint conditions of the technical solution.
  • FIG. 8 shows a schematic structural diagram of a communication device 800.
  • the communication device 800 may be a terminal device, which can realize the function of the terminal device in the method provided in the embodiment of this application; the communication device 800 may also be a device that can support the terminal device to realize the function of the terminal device in the method provided in the embodiment of this application .
  • the communication device 800 may be a hardware structure, a software module, or a hardware structure plus a software module.
  • the communication device 800 may be implemented by a chip system. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.
  • the communication device 800 may include a processing module 801 and a communication module 802.
  • the processing module 801 may be used to perform step S33 in the embodiment shown in FIG. 3, and/or used to support other processes of the technology described herein.
  • the communication module 802 is used for the communication device 800 to communicate with other modules, and it may be a circuit, a device, an interface, a bus, a software module, a transceiver, or any other device that can realize communication.
  • the communication module 802 may be used to execute step S32 and step S34 in the embodiment shown in FIG. 3, and/or other processes used to support the technology described herein.
  • FIG. 9 shows a schematic structural diagram of a communication device 900.
  • the communication device 900 may be a first network device, which can implement the functions performed by the first network device in the method provided in the embodiments of the present application; the communication device 900 may also be capable of supporting the first network device to implement the method provided in the embodiments of the present application A device for the function performed by the first network device.
  • the communication device 900 may be a hardware structure, a software module, or a hardware structure plus a software module.
  • the communication device 900 may be implemented by a chip system. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.
  • the communication device 900 may include a processing module 901 and a communication module 902.
  • the processing module 901 may be used to perform steps S43 and S45 in the embodiment shown in FIG. 4, or used to control the communication module 902 to perform the steps in the embodiment shown in FIG. 5 or FIG. 6, or used to perform the steps in the embodiment shown in FIG. Step S712 in the illustrated embodiment, and/or other processes for supporting the technology described herein.
  • the communication module 902 can be used to perform step S42 and step S46 in the embodiment shown in FIG. 4, or used to perform step S501 to step S503 and step S507 to step S509 in the embodiment shown in FIG. Perform step S61 and step S66 to step S68 in the embodiment shown in FIG. 6, or used to perform step S701 to step S703, step S707 to step S709, step S711, and step S713 in the embodiment shown in FIG. 7, And/or other processes used to support the technology described herein.
  • the communication module 902 is used for the communication device 900 to communicate with other modules, and it may be a circuit, a device, an interface, a bus, a software module, a transceiver, or any other device that can implement communication.
  • FIG. 10 shows a schematic structural diagram of a communication device 1000.
  • the communication apparatus 1000 may be a second network device, which can implement the functions performed by the second network device in the method provided in the embodiments of the present application; the communication apparatus 1000 may also be capable of supporting the second network device to implement the functions provided by the embodiments of the present application
  • the function performed by the second network device is a device.
  • the communication device 1000 may be a hardware structure, a software module, or a hardware structure plus a software module.
  • the communication device 1000 may be implemented by a chip system. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.
  • the communication device 1000 may include a processing module 1001 and a communication module 1002.
  • the processing module 1001 may be used to perform step S506 in the embodiment shown in FIG. 5, or used to perform step S706 in the embodiment shown in FIG. 7, and/or used to support other processes of the technology described herein.
  • the communication module 1002 can be used to perform steps S501 to S505, step S507, and steps S509 to S510 in the embodiment shown in FIG. 5, or to perform steps S63 to S64 and in the embodiment shown in FIG. Step S68, or used to perform steps S701 to S705, step S707, step 709 to step S711, and step S713 to step S714 in the embodiment shown in FIG. 7, and/or other methods for supporting the technology described herein process.
  • the communication module 1002 is used for communication between the communication device 1000 and other modules, and it may be a circuit, a device, an interface, a bus, a software module, a transceiver, or any other device that can realize communication.
  • the division of modules in the embodiments of this application is illustrative, and it is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in each embodiment of this application can be integrated into one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • FIG. 11 shows a communication device 1100 provided by an embodiment of this application, where the communication device 1100 may be a terminal device in the embodiment shown in FIG. 3, and can implement what is performed by the terminal device in the method provided in the embodiment of this application. Function; the communication device 1100 may also be a device capable of supporting the terminal device to implement the function performed by the terminal device in the method provided in the embodiments of the present application. Wherein, the communication device 1100 may be a chip system. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.
  • the aforementioned communication module 802 may be a transceiver, and the transceiver is integrated in the communication device 1100 to form a communication interface 1110.
  • the communication device 1100 includes at least one processor 1120, which is configured to implement or support the communication device 1100 to implement the function of the access network device in the method provided in the embodiment of the present application.
  • the processor 1120 may determine the type of the first message according to the first indication information. For details, refer to the detailed description in the method example, which is not repeated here.
  • the communication device 1100 may further include at least one memory 1130 for storing program instructions and/or data.
  • the memory 1130 and the processor 1120 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 1120 may operate in cooperation with the memory 1130.
  • the processor 1120 may execute program instructions stored in the memory 1130. At least one of the at least one memory may be included in the processor.
  • the communication device 1100 may further include a communication interface 1110 for communicating with other devices through a transmission medium, so that the device used in the communication device 1100 can communicate with other devices.
  • the other device may be a network device.
  • the processor 1120 may use the communication interface 1110 to send and receive data.
  • the communication interface 1110 may specifically be a transceiver.
  • the embodiment of the present application does not limit the specific connection medium between the communication interface 1110, the processor 1120, and the memory 1130.
  • the memory 1130, the processor 1120, and the communication interface 1110 are connected by a bus 1140.
  • the bus is represented by a thick line in FIG. 11, and the connection modes between other components are merely illustrative. , Is not limited.
  • the bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one thick line is used in FIG. 11 to represent, but it does not mean that there is only one bus or one type of bus.
  • the processor 1120 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. Or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the memory 1130 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), For example, random-access memory (RAM).
  • the memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • the memory in the embodiments of the present application may also be a circuit or any other device capable of realizing a storage function for storing program instructions and/or data.
  • the communication device 1200 may be a first network device, which can realize the function of the first network device in the method provided in the embodiment of this application; the communication device 1200 may also It is a device that can support the terminal device to implement the function of the first network device in the method provided in the embodiment of the present application.
  • the communication device 1200 may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the aforementioned communication module 902 may be a transceiver, and the transceiver is integrated in the communication device 1200 to form a communication interface 1210.
  • the communication device 1200 includes at least one processor 1220, which is configured to implement or support the communication device 1200 to implement the function of the first network device in the method provided in the embodiment of the present application.
  • the processor 1220 may determine the location of the terminal device according to the first message. For details, refer to the detailed description in the method example, which is not repeated here.
  • the communication device 1200 may further include at least one memory 1230 for storing program instructions and/or data.
  • the memory 1230 and the processor 1220 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 1220 may cooperate with the memory 1230 to operate.
  • the processor 1220 may execute program instructions stored in the memory 1230. At least one of the at least one memory may be included in the processor.
  • the communication apparatus 1200 may further include a communication interface 1210 for communicating with other devices through a transmission medium, so that the apparatus used in the apparatus 1200 can communicate with other devices.
  • the other device may be a terminal device.
  • the processor 1220 may use the communication interface 1210 to send and receive data.
  • the communication interface 1210 may specifically be a transceiver.
  • connection medium between the communication interface 1210, the processor 1220, and the memory 1230 is not limited in the embodiment of the present application.
  • the memory 1230, the processor 1220, and the communication interface 1210 are connected by a bus 1240.
  • the bus is represented by a thick line in FIG. 12, and the connection mode between other components is only for schematic illustration. , Is not limited.
  • the bus can be divided into address bus, data bus, control bus, etc. For ease of representation, only one thick line is used to represent in FIG. 12, but it does not mean that there is only one bus or one type of bus.
  • the processor 1220 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. Or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the memory 1230 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), For example, random-access memory (RAM).
  • the memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • the memory in the embodiments of the present application may also be a circuit or any other device capable of realizing a storage function for storing program instructions and/or data.
  • FIG. 13 shows a communication device 1300 provided by an embodiment of the application, where the communication device 1300 may be a second network device, which can implement the functions performed by the second network device in the method provided by the embodiment of the application; the communication device 1300 It may also be a device capable of supporting the terminal device to implement the function performed by the second network device in the method provided in the embodiment of the present application.
  • the communication device 1300 may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the aforementioned communication module 1002 may be a transceiver, and the transceiver is integrated in the communication device 1300 to form a communication interface 1310.
  • the communication device 1300 includes at least one processor 1320, which is configured to implement or support the communication device 1300 to implement the functions performed by the first network device in the method provided in the embodiments of the present application.
  • the processor 1320 may generate the first response message.
  • the processor 1320 may generate the first response message.
  • the communication device 1300 may further include at least one memory 1330 for storing program instructions and/or data.
  • the memory 1330 may be coupled with the processor 1320.
  • the coupling in the embodiments of the present application refers to an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the processor 1320 may also cooperate with the memory 1330.
  • the processor 1320 may execute program instructions stored in the memory 1330. At least one of the at least one memory may be included in the processor.
  • the communication apparatus 1300 may further include a communication interface 1310 for communicating with other devices through a transmission medium, so that the apparatus 1300 can communicate with other devices.
  • the other device may be a terminal device.
  • the processor 1320 may use the communication interface 1310 to send and receive data.
  • the communication interface 1310 may specifically be a transceiver.
  • the embodiment of the present application does not limit the specific connection medium between the communication interface 1310, the processor 1320, and the memory 1330.
  • the memory 1330, the processor 1320, and the communication interface 1310 are connected by a bus 1340 in FIG. 13, and the bus is represented by a thick line in FIG. 13.
  • the connection mode between other components is only for schematic illustration. , Is not limited.
  • the bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one thick line is used in FIG. 13, but the actual bus structure does not mean that there is only one bus or one type of bus.
  • the processor 1320 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. Or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the memory 1330 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), For example, random-access memory (RAM).
  • the memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • the memory in the embodiments of the present application may also be a circuit or any other device capable of realizing a storage function for storing program instructions and/or data.
  • the embodiment of the present application also provides a communication device, and the communication device may be a terminal device or a circuit.
  • the communication device may be used to perform the actions performed by the terminal device in the foregoing method embodiments.
  • FIG. 14 shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate.
  • the terminal device uses a mobile phone as an example.
  • the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 14 only one memory and processor are shown in FIG. 14. In actual terminal equipment products, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with the transceiving function can be regarded as the transceiving unit of the terminal device
  • the processor with the processing function can be regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiver unit 1410 and a processing unit 1420.
  • the transceiver unit may also be called a transceiver, a transceiver, a transceiver, and so on.
  • the processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on.
  • the device for implementing the receiving function in the transceiver unit 1410 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 1410 as the sending unit, that is, the transceiver unit 1410 includes a receiving unit and a sending unit.
  • the transceiver unit may sometimes be called a transceiver, transceiver, or transceiver circuit.
  • the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • transceiving unit 1410 is used to perform sending and receiving operations on the terminal device side in the foregoing method embodiment
  • processing unit 1420 is used to perform other operations on the terminal device in the foregoing method embodiment except for the transceiving operation.
  • the transceiving unit 1410 is used to perform step S32 and the receiving operation on the terminal device side in step S34 in the embodiment shown in FIG. 3, and/or the transceiving unit 1410 is also used to perform the implementation of this application.
  • the other sending and receiving steps on the terminal device side The processing unit 1420 is configured to execute step S33 in the embodiment shown in FIG. 3, and/or the processing unit 1420 is further configured to execute other processing steps on the terminal device side in the embodiment of the present application.
  • the chip When the communication device is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit is a processor or microprocessor or integrated circuit integrated on the chip.
  • the device shown in FIG. 15 can be referred to.
  • the device can perform functions similar to the processor 1120 in FIG. 11.
  • the device includes a processor 1510, a data sending processor 1520, and a data receiving processor 1530.
  • the processing module 801 in the foregoing embodiment may be the processor 1510 in FIG. 15 and completes corresponding functions.
  • the transceiver module 802 in the foregoing embodiment may be the sending data processor 1520 and/or the receiving data processor 1530 in FIG. 15.
  • the channel encoder and the channel decoder are shown in FIG. 15, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are merely illustrative.
  • the processing device 1600 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem.
  • the communication device in this embodiment can be used as a modulation subsystem therein.
  • the modulation subsystem may include a processor 1603 and an interface 1604.
  • the processor 1603 completes the function of the aforementioned processing module 801, and the interface 1604 completes the function of the aforementioned communication module 802.
  • the modulation subsystem includes a memory 1606, a processor 1603, and a program stored in the memory 1606 and running on the processor.
  • the processor 1603 executes the program on the terminal device side in the above method embodiment. Methods.
  • the memory 1606 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1600, as long as the memory 1606 can be connected to the The processor 1603 is fine.
  • a computer-readable storage medium is provided with instructions stored thereon, and when the instructions are executed, the method on the terminal device side in the foregoing method embodiment is executed.
  • a computer program product containing instructions is provided, and when the instructions are executed, the method on the terminal device side in the foregoing method embodiment is executed.
  • the device 1700 includes one or more radio frequency units, such as a remote radio unit (RRU) 1710 and one Or multiple baseband units (BBU) (also referred to as digital units, DU) 1720.
  • the RRU 1710 may be called a communication module, which corresponds to the communication module 802 in FIG. 8.
  • the communication module may also be called a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 1711 and Radio frequency unit 1712.
  • the RRU1710 part is mainly used for receiving and sending radio frequency signals and converting radio frequency signals and baseband signals, for example, for sending instruction information to terminal equipment.
  • the BBU1710 part is mainly used for baseband processing and control of base stations.
  • the RRU 1710 and the BBU 1720 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 1720 is the control center of the base station, and may also be called a processing module, which may correspond to the processing module 801 in FIG. 8, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU processing module
  • the BBU may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment, for example, to generate the foregoing indication information.
  • the BBU 1720 may be composed of one or more single boards, and multiple single boards may jointly support a wireless access network (such as an LTE network) of a single access standard, or can respectively support wireless access networks of different access standards. Access network (such as LTE network, 5G network or other networks).
  • the BBU 1720 also includes a memory 1721 and a processor 1722.
  • the memory 1721 is used to store necessary instructions and data.
  • the processor 1722 is used to control the base station to perform necessary actions, for example, to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 1721 and the processor 1722 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • An embodiment of the present application also provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method executed by the terminal device in any one of the embodiments in FIG. 3.
  • An embodiment of the present application also provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the first network device in any one of the embodiments in FIG. 4 or FIG. 5 or FIG. 6 or FIG. Method of execution.
  • An embodiment of the present application also provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the method executed by the second network device in any one of the embodiments in FIG. 5 or FIG. 6 or FIG. 7 .
  • the embodiments of the present application also provide a computer program product, including instructions, which when run on a computer, cause the computer to execute the method executed by the terminal device in any one of the embodiments in FIG. 3.
  • the embodiments of the present application also provide a computer program product, including instructions, which when run on a computer, cause the computer to execute the execution of the first network device in any one of the embodiments of FIG. 4 or FIG. 5 or FIG. 6 or FIG. 7 method.
  • An embodiment of the present application also provides a computer program product, including instructions, which when run on a computer, cause the computer to execute the method executed by the second network device in any one of the embodiments in FIG. 5 or FIG. 6 or FIG. 7.
  • the embodiment of the present application provides a chip system, which includes a processor and may also include a memory, which is used to implement the functions performed by the terminal device in the foregoing method embodiment.
  • the chip system can be composed of chips, or can include chips and other discrete devices.
  • An embodiment of the present application provides a chip system, which includes a processor and may also include a memory, configured to implement the functions performed by the first network device in the foregoing method embodiment.
  • the chip system can be composed of chips, or can include chips and other discrete devices.
  • An embodiment of the present application provides a chip system, which includes a processor and may also include a memory, configured to implement the functions performed by the second network device in the foregoing method embodiment.
  • the chip system can be composed of chips, or can include chips and other discrete devices.
  • An embodiment of the present application provides a communication system, and the communication system includes the aforementioned first network device or terminal device.
  • An embodiment of the present application provides a communication system, which includes the aforementioned first network device and second network device.
  • the methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented by software, it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, network equipment, user equipment, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • a computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, hard disk, Magnetic tape), optical media (for example, digital video disc (DVD) for short), or semiconductor media (for example, SSD).

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Abstract

La présente invention concerne un procédé et un appareil de communication. Dans le procédé, lorsqu'un système de positionnement prend en charge aussi bien une fonction de positionnement centralisée qu'une fonction de positionnement distribuée, après qu'un serveur de positionnement a été déterminé pour positionner un dispositif terminal, des premières informations d'indication peuvent être envoyées au dispositif terminal, et le type d'un premier message envoyé par le dispositif terminal est indiqué au moyen des premières informations d'indication. Par exemple, quand le serveur de positionnement est un élément de réseau ayant une fonction de positionnement dans un cœur de réseau, les premières informations d'indication peuvent indiquer que le type du premier message est un type de message non reconnaissable par un dispositif de réseau d'accès mais reconnaissable par un dispositif de cœur de réseau. Quand le serveur de positionnement est un élément de réseau ayant une fonction de positionnement dans un réseau d'accès, les premières informations d'indication peuvent indiquer que le type du premier message est un type de message reconnaissable par un dispositif de réseau d'accès, de manière à pouvoir réaliser la coordination d'une fonction de positionnement distribuée et d'un service de positionnement centralisé au moyen des premières informations d'indication.
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