WO2017197649A1 - 一种业务消息发送方法、终端设备以及网络设备 - Google Patents

一种业务消息发送方法、终端设备以及网络设备 Download PDF

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Publication number
WO2017197649A1
WO2017197649A1 PCT/CN2016/082854 CN2016082854W WO2017197649A1 WO 2017197649 A1 WO2017197649 A1 WO 2017197649A1 CN 2016082854 W CN2016082854 W CN 2016082854W WO 2017197649 A1 WO2017197649 A1 WO 2017197649A1
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WIPO (PCT)
Prior art keywords
interface
communication interface
communication
terminal device
message
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Ceased
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PCT/CN2016/082854
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English (en)
French (fr)
Inventor
肖潇
李明超
曹振臻
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP16902033.6A priority Critical patent/EP3448071B1/en
Priority to PCT/CN2016/082854 priority patent/WO2017197649A1/zh
Priority to CN201680085695.5A priority patent/CN109155905B/zh
Publication of WO2017197649A1 publication Critical patent/WO2017197649A1/zh
Priority to US16/195,611 priority patent/US10728827B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/12Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/46Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/04Interfaces between hierarchically different network devices
    • H04W92/10Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a method, a terminal device, and a network device for transmitting a service message between vehicle terminal devices.
  • V2V communication is a communication technology for data transmission and information exchange between a vehicle and a vehicle through wireless communication technology.
  • ITS Intelligent Transportation System
  • V2V communication mainly provides and supports road traffic safety related applications and service transmission, which is widely considered to improve vehicle safety and reduce traffic. The key technology of the accident.
  • the V2V service carried by the V2V communication is realized by transmitting a V2V message
  • the V2V message mainly includes some information related to the running state of the vehicle, such as at least one of a vehicle speed, a traveling direction, a latitude and longitude, an acceleration, a brake, and a lane change, And/or some information related to the surrounding road environment, such as at least one of an accident, road construction, traffic facility failure, and the like.
  • the vehicle can perform V2V message interaction with other vehicles around it, so that the vehicle driving system can timely obtain road condition information or receive information service related to vehicle driving safety, and assist the vehicle driver or vehicle driving system to predict the danger and Take appropriate action to avoid accidents as much as possible.
  • V2V communication is related to the key information of vehicle driving safety, it is necessary to carry out V2V message interaction between vehicles in time and accurately, thus having "high reliability, short delay" communication requirements.
  • LTE Long Term Evolution
  • V2X Vehicle to everything
  • V2I vehicle to infrastructure
  • V2P vehicle to pedestrian
  • LTE-based V2V communication is an important part of this standardization work, providing two communication technologies: device to device (D2D) direct communication and LTE base station relay communication:
  • the D2D direct communication technology allows user equipment (UE) to communicate directly through the PC5 interface.
  • the transmission delay is relatively low, but the configuration resources are very limited and easy. This causes V2V message transmission congestion and data collision.
  • the LTE base station transit communication technology communicates through the Uu interface, and the reliability is high.
  • the UE needs to first transmit data to the base station, and then the base station forwards the data to other UEs, and the transmission delay is relatively high and occupies more resources.
  • the embodiment of the invention provides a method for transmitting a V2X service message, a terminal device and a network side device, which improve the transmission performance of the V2X service message.
  • the present invention provides a V2X service message sending method, including:
  • the terminal device receives the communication interface configuration information from the network side device, where the communication interface configuration information includes interface indication information, where the interface indication information is used to indicate at least one communication interface for transmitting a V2X service message;
  • the communication interface configuration information determines a communication interface from at least two communication interfaces for transmitting a V2X service message; the terminal device sends the V2X service message by using the determined one of the communication interfaces.
  • the terminal device can reasonably select the communication interface to send the message according to the communication interface configuration information of the network side device, thereby improving the flexibility of V2X service message transmission.
  • the at least two communication interfaces for transmitting V2X service messages include a PC5 interface and a Uu interface, the interface indication information being used to indicate at least one of a PC5 interface and a Uu interface.
  • the interface indication information is indication information of the first communication interface, where the first communication interface is a PC5 interface or a Uu interface, and the terminal device determines the first communication interface to send the V2X service message; or the interface indication information indication
  • the at least one communication interface includes a PC5 interface and a Uu interface
  • the communication interface configuration information further includes determining a communication interface trigger condition of the PC5 interface or the Uu interface; and when the terminal device determines that the communication interface trigger condition is met, One of the PC5 interface and the Uu interface is determined as a communication interface.
  • the PC5 interface is determined as the communication interface:
  • the wireless environment measurement information corresponding to the PC5 interface is lower than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is lower than the second threshold
  • the message type to be transmitted is a cooperative awareness message CAM or a basic security class message BSM;
  • the link between the terminal device and the network side device is abnormal, and the abnormality includes at least one of a radio link failure RLF, a handover failure HOF, or an OoC outside the base station coverage.
  • the terminal device determines the Uu interface as the communication interface when it determines that one or more of the following conditions are met:
  • the wireless environment measurement information corresponding to the PC5 interface is higher than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold
  • the type of message to be transmitted is a distributed environment notification message DEMN or a telematics data Telematics message.
  • the wireless environment measurement information corresponding to the PC5 interface includes the load of the resource pool corresponding to the PC5 interface.
  • the load of the resource pool may be the proportion of resources occupied by the D2D pass-through resource pool of the PC5 interface.
  • the wireless environment measurement information corresponding to the Uu interface includes the signal strength of the cellular link corresponding to the Uu interface.
  • the signal strength of the cellular link may be Reference Signaling Receiving Power (RSRP) or Channel Quality Information (CQI).
  • RSRP Reference Signaling Receiving Power
  • CQI Channel Quality Information
  • determining a communication interface trigger condition of the PC5 interface and determining a communication interface trigger condition of the Uu interface are mutually exclusive. It should be noted that the mutual exclusion means that the communication interface triggering condition of the PC5 interface is determined, and the communication interface triggering condition of the Uu interface is determined to have no intersection, and there is no simultaneous determination that both the PC5 interface and the Uu interface can be used for sending the V2X service message. Case.
  • the communication interface configuration information is carried in system information or a radio resource control RRC dedicated message.
  • the terminal device determines that the communication interface currently used by the V2X service message is a different communication interface than the determined one of the communication interfaces, and stops sending the V2X service message through the currently used communication interface, And transmitting the V2X service message by using the determined one communication interface.
  • the terminal device configures the logical channel and the protocol stack according to the determined one of the communication interfaces, and transmits the V2X service message on the logical channel.
  • the logical channel is one or more dedicated logical channels, wherein each dedicated logical channel is uniquely identified by a channel label.
  • the channel label indicates at least one of a priority of a service message, a type of a service message, and a service message QoS level identifier QCI.
  • the present invention provides a V2X service message sending method, including:
  • the network side device generates communication interface configuration information, where the communication interface configuration information includes interface indication information, where the interface indication information is used to indicate at least one communication interface used by the terminal device to send a V2X service message; Communication interface configuration information, the communication interface configuration information is used by the terminal device to determine a communication interface from at least two communication interfaces for transmitting a V2X service message, the determined one communication interface is used by the terminal device to send the V2X business message.
  • the at least two communication interfaces for transmitting V2X service messages include a PC5 interface and a Uu interface, the interface indication information being used to indicate at least one of a PC5 interface and a Uu interface.
  • the interface indication information is indication information of the first communication interface, where the first communication interface is a PC5 interface or a Uu interface, and the first communication interface is used by the terminal device to send the V2X service message; or the interface indication
  • the information indicates at least one communication interface, the at least one communication interface includes a PC5 interface and a Uu interface, and the communication interface configuration information further includes a communication interface trigger condition for determining a PC5 interface or a Uu interface, the communication interface trigger condition is used for the The terminal device determines one of the PC5 interface and the Uu interface as a communication interface.
  • the communication interface trigger condition includes determining that the PC5 interface acts as a communication interface when one or more of the following conditions are met:
  • the wireless environment measurement information corresponding to the PC5 interface is lower than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is lower than the second threshold
  • the message type to be transmitted is a cooperative awareness message CAM or a basic security class message BSM;
  • An abnormality occurs in the link between the terminal device and the network side device, and the abnormality includes the wireless link loss. At least one of the RLF, the handover failure HOF, or the OoC outside the base station coverage.
  • the communication interface trigger condition further includes determining the Uu interface as the communication interface when one or more of the following conditions are met:
  • the wireless environment measurement information corresponding to the PC5 interface is higher than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold
  • the type of message to be transmitted is a distributed environment notification message DEMN or a telematics data Telematics message.
  • the network side device transmits the communication interface configuration information through system information or a radio resource control RRC dedicated message.
  • the network side device can obtain the global information of the network wireless environment, and therefore can determine and indicate a communication interface for the terminal device to perform the V2X service message according to the global information of the wireless environment of the current network. send.
  • the present invention provides a V2X service message sending method, including:
  • the terminal device detects a first communication interface currently used for transmitting a V2X service message; the terminal device determines a second communication interface, the first or second communication interface being determined from at least two communication interfaces for transmitting V2X service messages The second communication interface is different from the first communication interface; the terminal device stops transmitting the V2X service message through the first communication interface, and uses the second communication interface to send the V2X service message.
  • the at least two communication interfaces for transmitting V2X service messages include a PC5 interface and a Uu interface; the first communication interface is any one of a PC5 interface and a Uu interface, and the second communication The interface is the other one of the PC5 interface and the Uu interface.
  • the terminal device obtains a dedicated logical channel corresponding to the first communication interface, each dedicated logical channel is uniquely identified by a channel label; and the dedicated logical channel corresponding to the second communication interface and the communication of the protocol stack are utilized. Interface reconfiguration information, configuring a dedicated logical channel corresponding to the first communication interface.
  • the terminal device when the second communication interface is a Uu interface, the terminal device reports one or more channel labels corresponding to the first communication interface, where the channel label is used to identify a corresponding one of the first communication interfaces. a dedicated logical channel; the terminal device receives the communication interface reconfiguration information corresponding to the second communication interface, and configures a dedicated logical channel identified by the channel label according to the communication interface reconfiguration information, and generates a corresponding corresponding to the second communication interface.
  • Dedicated logical channel The second pass When the interface is a PC5 interface, the terminal device acquires one or more channel labels corresponding to the first communication interface, and generates communication interface reconfiguration information corresponding to the second communication interface; the terminal device configures according to the communication interface reconfiguration information.
  • the dedicated logical channel identified by the channel tag generates a dedicated logical channel corresponding to the second communication interface.
  • the terminal device receives communication interface configuration information, the communication interface configuration information is sent by the network side device, and the communication interface configuration information includes interface indication information, where the interface indication information is used to indicate the terminal
  • the device is configured to send at least one communication interface of the V2X service message; the terminal device determines the second communication interface according to the communication interface configuration information.
  • the interface indication information indicates a second communication interface
  • the second communication interface is a PC5 interface or a Uu interface
  • the terminal device determines the second communication interface according to the indication information; or the interface indication information indicates at least a communication interface, the at least one communication interface includes a PC5 interface and a Uu interface, and the communication interface configuration information further includes a communication interface trigger condition, and the terminal device determines the second communication interface according to whether the communication interface trigger condition is met.
  • the second communication interface is one of a PC5 interface and a Uu interface.
  • the interface indication information indicates at least one communication interface
  • the at least one communication interface includes a PC5 interface and a Uu interface
  • the second communication interface is determined when the terminal device determines that one or more of the following conditions are met.
  • the wireless environment measurement information corresponding to the PC5 interface is lower than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is lower than the second threshold
  • the message type to be transmitted is a cooperative awareness message CAM or a basic security class message BSM;
  • the link between the terminal device and the network side device is abnormal, and the abnormality includes at least one of a radio link failure RLF, a handover failure HOF, or an OoC outside the base station coverage.
  • the interface indication information indicates at least one communication interface
  • the at least one communication interface includes a PC5 interface and a Uu interface
  • the terminal device determines that at least one of the following conditions is met, determining that the second communication interface is Uu interface:
  • the wireless environment measurement information corresponding to the PC5 interface is higher than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold
  • the type of message to be transmitted is a distributed environment notification message DEMN or a telematics data Telematics message.
  • the present invention provides a terminal device, including: a receiver, configured to receive communication interface configuration information from a network side device, where the communication interface configuration information includes interface indication information, where the interface indication information is used to indicate
  • the transmitter is configured to send at least one communication interface of the V2X service message
  • the processor is configured to determine, according to the communication interface configuration information, a communication interface from at least two communication interfaces for transmitting the V2X service message; the transmitter is configured to pass The determined one of the communication interfaces sends the V2X service message.
  • the at least two communication interfaces for transmitting V2X service messages include a PC5 interface and a Uu interface, the interface indication information being used to indicate at least one of a PC5 interface and a Uu interface.
  • the interface indication information is indication information of the first communication interface, where the first communication interface is a PC5 interface or a Uu interface; the processor determines a first communication interface; and the transmitter sends the first communication interface Said V2X business message.
  • the interface indication information indicates at least one communication interface, the at least one communication interface includes a PC5 interface and a Uu interface, and the communication interface configuration information further includes a communication interface trigger condition for determining a PC5 interface or a Uu interface; When it is determined that the communication interface trigger condition is satisfied, one of the PC5 interface and the Uu interface is determined as a communication interface.
  • the interface indication information indicates at least one communication interface
  • the at least one communication interface includes a PC5 interface and a Uu interface.
  • the processor is further configured to determine that the PC5 interface is used as a communication interface when one or more of the following communication interface trigger conditions are met:
  • the wireless environment measurement information corresponding to the PC5 interface is lower than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is lower than the second threshold
  • the message type to be transmitted is a cooperative awareness message CAM or a basic security class message BSM;
  • the link between the terminal device and the network side device is abnormal, and the abnormality includes at least one of a radio link failure RLF, a handover failure HOF, or an OoC outside the base station coverage.
  • the interface indication information indicates at least one communication interface
  • the at least one communication interface includes a PC5 interface and a Uu interface.
  • the processor is further configured to determine that the Uu interface is used as the communication interface when one or more of the following communication interface trigger conditions are met:
  • the wireless environment measurement information corresponding to the PC5 interface is higher than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold
  • the type of message to be transmitted is the distributed environment notification message DEMN or car internet data. Telematics message.
  • another terminal device having a function of implementing the behavior of the terminal device in the process of the foregoing method.
  • the function may be implemented by hardware in the terminal device, or may be implemented in hardware or software including one or more units corresponding to the above functions.
  • the present invention provides a network side device, including: a processor, configured to generate communication interface configuration information, where the communication interface configuration information includes interface indication information, where the interface indication information is used to indicate that the terminal device is used by Transmitting at least one communication interface of the V2X service message; the transmitter, configured to send the communication interface configuration information by using the system information or the radio resource control RRC dedicated message to send the communication interface configuration information, where the communication interface configuration information is used by the The terminal device determines a communication interface from at least two communication interfaces for transmitting V2X service messages, and the determined one communication interface is used by the terminal device to send the V2X service message.
  • the at least two communication interfaces for transmitting V2X service messages include a PC5 interface and a Uu interface, the interface indication information being used to indicate at least one of a PC5 interface and a Uu interface.
  • the interface indication information is the indication information of the first communication interface, and the first communication interface is a PC5 interface or a Uu interface, and the first communication interface is used by the terminal device to send the V2X service message.
  • the interface indication information indicates at least one communication interface, the at least one communication interface includes a PC5 interface and a Uu interface, and the communication interface configuration information further includes a communication interface trigger condition for determining a PC5 interface or a Uu interface; the communication interface trigger condition
  • the terminal device is configured to determine one of a PC5 interface and a Uu interface as a communication interface.
  • the communication interface trigger condition includes determining that the PC5 interface acts as a communication interface when one or more of the following conditions are met:
  • the wireless environment measurement information corresponding to the PC5 interface is lower than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is lower than the second threshold
  • the message type to be transmitted is a cooperative awareness message CAM or a basic security class message BSM;
  • the link between the terminal device and the network side device is abnormal, and the abnormality includes at least one of a radio link failure RLF, a handover failure HOF, or an OoC outside the base station coverage.
  • the communication interface trigger condition includes determining that the Uu interface acts as a communication interface when one or more of the following conditions are met:
  • the wireless environment measurement information corresponding to the PC5 interface is higher than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold
  • the type of message to be transmitted is a distributed environment notification message DEMN or a telematics data Telematics message.
  • another network side device has a function of implementing network side device behavior in the foregoing method flow.
  • the function may be implemented by hardware in a network side device, or may be implemented in hardware or software including one or more units corresponding to the above functions.
  • the present invention provides a terminal device, including: a transmitter, configured to send a V2X service message by using a communication interface, and a processor, configured to detect a first communication interface that is currently used to send a V2X service message, and determine a communication interface, in a case where the first communication interface is different from the second communication interface, notifying the transmitter to stop transmitting the V2X service message through the first communication interface, and transmitting the V2X service message by using the second communication interface
  • the first or second communication interface is determined from at least two communication interfaces for transmitting V2X service messages.
  • the at least two communication interfaces for transmitting V2X service messages include a PC5 interface and a Uu interface; the first communication interface is any one of a PC5 interface and a Uu interface, and the second communication The interface is the other one of the PC5 interface and the Uu interface.
  • the processor is configured to obtain a dedicated logical channel corresponding to the first communication interface, use a dedicated logical channel corresponding to the second communication interface, and a communication interface reconfiguration information of the protocol stack, configured and configured a dedicated logical channel corresponding to the first communication interface; wherein each of the dedicated logical channels is uniquely identified by a channel label.
  • the processor determines that the second communication interface is a Uu interface, and reports one or more channel labels corresponding to the first communication interface, where the channel label is used to identify a dedicated one corresponding to the first communication interface.
  • a logical channel configured according to the communication interface reconfiguration information, configured by the dedicated logical channel identified by the channel label, to generate a dedicated logical channel corresponding to the second communication interface; and the receiver is configured to receive and correspond to the second communication interface The communication interface reconfiguration information. And determining, by the processor, that the second communication interface is a PC5 interface, acquiring one or more channel labels corresponding to the first communication interface, and generating communication interface reconfiguration information corresponding to the second communication interface; The communication interface reconfiguration information is configured to configure a dedicated logical channel identified by the channel label to generate a dedicated logical channel corresponding to the second communication interface.
  • the receiver is configured to receive communication interface configuration information
  • the communication interface configuration information includes interface indication information, and the interface indication information is used to indicate at least one communication interface used by the transmitter to send a V2X service message.
  • the interface indication information indicates a second communication interface, and the second communication interface is a PC5 interface or a Uu interface; the processor is configured to determine a second communication interface according to the indication information; or the interface indication information indicates at least a communication interface, the at least one communication interface includes a PC5 interface and a Uu interface, the communication interface configuration information further includes a communication interface trigger condition, and the processor is configured to determine, according to the communication interface trigger condition, the second communication interface .
  • the interface indication information indicates at least one communication interface
  • the processor determines that the communication interface trigger condition satisfies one of the following conditions or When multiple times, determine that the second communication interface is a PC5 interface:
  • the wireless environment measurement information corresponding to the PC5 interface is lower than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is lower than the second threshold
  • the message type to be transmitted is a cooperative awareness message CAM or a basic security class message BSM;
  • the link between the terminal device and the network side device is abnormal, and the abnormality includes at least one of a radio link failure RLF, a handover failure HOF, or an OoC outside the base station coverage.
  • the interface indication information indicates at least one communication interface
  • the processor determines that the communication interface trigger condition satisfies one of the following conditions or When multiple times, it is determined that the second communication interface is a Uu interface:
  • the wireless environment measurement information corresponding to the PC5 interface is higher than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold
  • the type of message to be transmitted is a distributed environment notification message DEMN or a vehicle internet data Telematics message.
  • another terminal device having a function of implementing the behavior of the terminal device in the process of the foregoing method.
  • the function may be implemented by hardware in the terminal device, or may be implemented in hardware or software including one or more units corresponding to the above functions.
  • the solution provided by the present invention enables the terminal device to select and convert between the D2D direct communication method based on the PC5 interface and the LTE base station relay communication method based on the Uu interface, and fully utilizes the advantages of the two communication methods. Improve the transmission performance of V2X service messages.
  • FIG. 1 is a schematic diagram of a V2X service message communication protocol stack according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a V2X service message communication application scenario according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a V2X service message transmission according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of sending a V2X service message according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of another possible structure of a terminal device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of another possible structure of a network side device according to an embodiment of the present invention.
  • the user equipment can directly communicate with other user equipments in the form of broadcast.
  • the air interface that directly communicates between user equipments is called a PC5 interface
  • the corresponding wireless link is called a D2D link (Sidelink, SL).
  • the UE configures the wireless protocol stack corresponding to the PC5 interface and processes the data through the protocol stack, and transmits the processed data through the PC5 interface after acquiring the D2D direct communication resource.
  • the LTE system will Configure a resource pool (Resource Pool) dedicated to D2D direct communication.
  • a resource pool refers to a set of time and frequency resources used for wireless communication.
  • the D2D direct communication data can only be transmitted on the PC5 interface by using the D2D direct communication resource in the D2D direct communication resource pool configured by the LTE system.
  • the UE has two ways of acquiring D2D direct communication resources, which are respectively based on a mode of UE self-selection and a method based on base station scheduling.
  • the method based on the autonomous selection of the UE means that the UE selects resources autonomously from the D2D direct communication resource pool configured by the base station, and the base station scheduling method refers to the base station selecting resources for the UE from the D2D direct communication resource pool.
  • the D2D direct communication technology has the advantages of low delay and less resources, in the case of limited D2D direct communication resources and/or large traffic, the D2D direct communication resource pool has a high load, and the UE selects autonomous resources.
  • the method will cause the data transmitted by the UE to collide frequently, causing serious interference of data transmission between UEs, which significantly affects communication performance.
  • the transmission data of the UE may be difficult to obtain sufficient transmission resources in time, thereby causing data transmission congestion, forcing the UE to discard data packets that cannot be transmitted in time, and seriously affecting the user service environment.
  • the UE In the LTE base station transit communication technology, the UE first sends a V2V message to the base station, and then the base station sends the V2V message to other UEs for receiving.
  • the air interface that the UE performs uplink transmission or downlink transmission with the base station is called a Uu interface.
  • the UE sends the V2V message to the base station by means of an uplink (UL) unicast, and the base station transmits the V2V message to other UEs by using a downlink (DL) broadcast.
  • UL uplink
  • DL downlink
  • the UE configures the radio bearer part of the Uu interface, processes the data through the radio protocol stack corresponding to the Uu interface, and configures the base station-serving gateway (S-GW) through the MME (mobility management entity).
  • the PDN gateway (P-GW) is the core network bearer part of the V2V server.
  • the uplink resources of the LTE system are used to transmit the processed data through the Uu interface.
  • the LTE base station transit communication technology adopts the centralized resource scheduling mode of the base station, and the base station schedules mutually orthogonal radio resources for each UE, which effectively solves the interference problem of communication between UEs, and is a highly reliable transmission mode.
  • the LTE base station relay communication technology requires the transmitting end UE to first transmit data to the base station by using the uplink resource, and then the base station uses the downlink resource to forward the data to the receiving end UE, so as to implement communication and information interaction between the UEs, and directly allow the UE to directly communicate with each other.
  • the resource utilization rate of the LTE base station relay communication technology is relatively low, and the delay phase Higher.
  • the present invention provides a message sending method and device for a V2X service, which can flexibly send a message of a V2X service by using the above-mentioned introduction and advantages and disadvantages of the V2V communication technology.
  • FIG. 1 shows different wireless protocol stacks corresponding to the LTE base station relay communication technology (left) using the Uu interface and the D2D direct communication technology (right) using the PC5 interface from the perspective of the terminal device.
  • the cellular uplink data transmission of the terminal device as the transmitting end needs to be processed by the Uu interface uplink protocol stack and sent to the base station through the uplink resource of the LTE system; and the D2D data transmission thereof is processed by the D2D straight protocol stack of the PC5 interface, and the LTE is utilized.
  • the D2D pass-through resource configured by the system performs D2D data transmission between the terminal devices.
  • FIG. 2 is a schematic diagram of a communication scenario according to an embodiment of the present invention.
  • the communication scenario diagram is only illustrative, and the scope of application of the present invention is not limited thereto.
  • the communication scenario map includes the vehicle user equipments V-UE1 to V-UE7 and the base station e-NodeB.
  • the communication scenario map may further include, for example, an MME.
  • the core network bearer part such as the S-GW/P-GW and the V2V server, is not limited thereto.
  • V2V communication can be performed between the vehicle user equipments V-UE.
  • the vehicle user equipment V-UE1 can perform V2V communication with other vehicle user equipments through the LTE base station relay communication technology, and the V-UE1 passes through the Uu interface.
  • the V2V message is uploaded to the base station by means of UL unicast, and the base station broadcasts the V2V message to other vehicle user equipments V-UE2 to V-UE4 by means of DL broadcast.
  • the vehicle user equipment V-UE5 uses the D2D pass-through technology to directly broadcast the V2V message generated by the vehicle user equipment V-UE6 to the surrounding vehicles V-UE6 ⁇ V-UE7; the V-UE5 also maintains the UL and DL with the base station on the Uu interface. Connection, but only for interaction with control information between base stations, without any V2V messages themselves.
  • V2V service is introduced as an example in the foregoing part, the person skilled in the art should know that the embodiment of the present invention is applicable not only to the V2V service but also to other V2X services, for example, for example. V2I, V2P, and new V2X services.
  • the terminal device may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem.
  • the wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • RAN Radio Access Network
  • RAN can be portable, pocket-sized, Handheld, computer built-in or in-vehicle mobile devices (eg, vehicle user equipment V-UE) that exchange language and/or data with the wireless access network.
  • a wireless terminal may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, or an access point.
  • Remote Terminal Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • the network device involved in the embodiments of the present invention may be a base station, or an access point, or may refer to a device in the access network that communicates with the wireless terminal through one or more sectors on the air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE. This application is not limited.
  • FIG. 3 shows a flow of a method for transmitting a V2X service message defined by the first embodiment of the present invention.
  • the terminal device receives communication interface configuration information from the network side device, where the communication interface configuration information includes interface indication information, where the interface indication information is used to indicate at least one communication interface for sending a V2X service message.
  • the terminal device determines, according to the communication interface configuration information, a communication interface from at least two communication interfaces for transmitting V2X.
  • the terminal device sends the V2X service message by using the determined one of the communication interfaces.
  • the first embodiment of the present invention defines a V2X service message sending method, so that the vehicle terminal device can select a suitable communication interface for the V2X message transmission between the PC5 interface and the Uu interface as needed to improve the transmission performance of the V2X service message.
  • the at least two communication interfaces for transmitting V2X include PC5.
  • An interface and a Uu interface where the interface indication information is used to indicate at least one of a PC5 interface and a Uu interface.
  • the network side device can support the transmission function of the PC5 interface and the Uu interface according to the function of the network, and/or the operation strategy of the V2X service of the operator to which it belongs, for example, whether the PC5 interface and/or the Uu interface are used to support the V2V service transmission.
  • an optional V2X transmission interface and provide an indication of the V2X transmission interface that can be selected through the interface indication information. This may depend on the function of the base station itself and the operating strategy of the operator, and no specific restrictions are made here.
  • the interface indication information is indication information of the first communication interface, and the first communication interface is a PC5 interface or a Uu interface; the terminal device determines the first communication interface to send the V2X service message.
  • the first communication interface is a PC5 interface
  • the terminal device determines that the V2X service communicates through the PC5 interface.
  • the terminal device configures the wireless protocol stack corresponding to the PC5 interface and processes the data through the protocol stack, and acquires the data after the D2D direct communication resource transmission processing.
  • the terminal device acquires the D2D direct communication resource from the D2D direct communication resource pool based on the autonomously selected manner, or the terminal device acquires the D2D direct communication resource from the D2D direct communication resource pool according to the base station scheduling manner.
  • the first communication interface is a Uu interface
  • the terminal device determines that the V2X service communicates through the Uu interface.
  • the terminal device configures a wireless protocol stack corresponding to the Uu interface and processes data through the protocol stack, and Establishing an end-to-end connection between the terminal device and the network side device and configuring a dedicated bearer, and transmitting the processed data through the dedicated bearer.
  • the interface indication information indicates at least one communication interface
  • the at least one communication interface includes a PC5 interface and a Uu interface.
  • the communication interface configuration information further includes determining a communication interface trigger condition of the PC5 interface or the Uu interface.
  • the terminal device determines that the communication interface trigger condition is satisfied, determining one of the PC5 interface and the Uu interface as the communication interface, and the communication interface trigger condition may be based on a wireless transmission environment of the PC5 interface and the Uu interface, and/or a message type, and the like. Selective configuration can be selected and configured according to actual needs.
  • the wireless environment measurement information corresponding to the PC5 interface is lower than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is lower than the second threshold
  • the type of message to be transmitted is Cooperative Awareness Message (Simplified). Called CAM) or Basic Safety Message (BSM);
  • the link between the terminal device and the network-side device is abnormal.
  • the abnormality includes a radio link failure (RLF), a handover failure (HOF), or an Out of Cover (Out of Cover). At least one of OoC for short.
  • the wireless environment measurement information corresponding to the PC5 interface includes the load of the resource pool corresponding to the PC5 interface.
  • the load of the resource pool may be the proportion of resources occupied by the D2D pass-through resource pool of the PC5 interface.
  • the wireless environment measurement information corresponding to the Uu interface includes a cellular link signal strength corresponding to the Uu interface.
  • the signal strength of the cellular link may be Reference Signaling Receiving Power (RSRP) or Channel Quality Information (CQI).
  • RSRP Reference Signaling Receiving Power
  • CQI Channel Quality Information
  • the communication quality of the currently used Uu interface does not meet the requirements, including the vehicle terminal device currently using the Uu interface as the transmission interface for V2X message transmission, but the quality of service (QoS) requirement of the V2X service is not satisfied.
  • the Uu interface is not suitable for performing V2X services.
  • the wireless environment measurement information corresponding to the PC5 interface is higher than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold
  • the message type to be transmitted is a Decentralized Environmental Notification Message (DENM) or a Telematics message.
  • DENM Decentralized Environmental Notification Message
  • Telematics message a Telematics message.
  • Telematics is a comprehensive technology of wireless communication technology, satellite navigation system, network communication technology and on-board computer.
  • Telematics message is a mainstream type of vehicle networking service message.
  • the wireless environment measurement information corresponding to the PC5 interface includes the load of the resource pool corresponding to the PC5 interface.
  • the load of the resource pool may be the proportion of resources occupied by the D2D pass-through resource pool of the PC5 interface.
  • the wireless environment measurement information corresponding to the Uu interface includes a cellular link signal strength corresponding to the Uu interface.
  • the signal strength of the cellular link may be Reference Signaling Receiving Power (RSRP) or Channel Quality Information (CQI).
  • RSRP Reference Signaling Receiving Power
  • CQI Channel Quality Information
  • the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold, the current Uu interface has better wireless environment conditions and higher signal transmission efficiency, and is suitable for performing V2X services.
  • the communication quality of the currently used PC5 interface does not meet the requirements, including the vehicle terminal device currently using the PC5 interface as the communication interface for V2X message transmission, but the quality of service (QoS) requirement of the V2X service is not satisfied.
  • the PC5 interface is not suitable for performing V2X services.
  • determining a communication interface trigger condition of the PC5 interface and determining a communication interface trigger condition of the Uu interface may be mutually exclusive. It should be noted that the mutual exclusion means that the communication interface triggering condition of the PC5 interface is determined, and the communication interface triggering condition of the Uu interface is determined to have no intersection, and there is no simultaneous determination that both the PC5 interface and the Uu interface can be used for sending the V2X service message. Case.
  • a set of communication interface trigger conditions are defined. If the group communication interface trigger condition is met, it is determined that one of the PC5 interface and the Uu interface is used as the communication interface to transmit the V2X service message, otherwise another one is determined as the communication interface for the V2X service message. Send.
  • the set of communication interface trigger conditions may include one or more communication interface trigger conditions.
  • the set of communication interface triggering conditions may include one or more of the communication interface triggering conditions defined in the first embodiment of the present invention, and may also include other related conditions defined according to the actual network environment and requirements.
  • the triggering condition of the set of communication interfaces is “the wireless environment measurement information corresponding to the PC5 interface is lower than the first threshold”
  • the PC5 interface is determined as the communication interface when the trigger condition is met, and the Uu interface is determined to be Communication Interface.
  • the triggering condition of the set of communication interfaces is that “the wireless environment measurement information corresponding to the PC5 interface corresponding to the PC5 interface is higher than the first threshold, and the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold,”
  • the Uu interface is determined as the communication interface, and if not, the PC5 interface is determined as the communication interface.
  • the set of communication interface trigger conditions may be a communication trigger condition or a set of multiple communication trigger conditions.
  • the terminal device may perform a corresponding step of determining a communication interface for the V2X service when at least one of the foregoing communication interface triggering conditions is reached, and then determine the communication connection.
  • the port sends the message of the V2X service.
  • the triggering condition is met, the V2X service is required to be executed, or the communication environment is changed.
  • the terminal device reaches the trigger condition, the terminal device performs a corresponding step of determining the communication path for the V2X service, so that the terminal device can flexibly be the V2X.
  • the service selects a communication path.
  • a more suitable communication interface can be selected from at least two communication interfaces to transmit a message of the V2X service, for example, selecting a more reliable or efficient communication interface.
  • the terminal device determines that the communication interface trigger condition is not met
  • the other one of the PC5 interface and the Uu interface may be determined as the communication interface.
  • the terminal device may randomly select one of the PC5 interface and the Uu interface, and determine that the V2X is sent by using the selected one of the communication interfaces.
  • the service message or, according to the requirements of the terminal device, preferentially select one of the interfaces, the PC5 interface or the Uu interface, and determine to send the V2X service message through the preferentially selected one of the communication interfaces.
  • the actual random selection method or the preferred selection method is not specifically limited.
  • the first embodiment of the present invention may further include: determining, by the terminal device, that the communication interface currently used by the V2X service is a communication interface different from the determined one of the communication interfaces. And then, the sending of the V2X service message by using the currently used communication interface is stopped, and the V2X service message is sent by using the determined one of the communication interfaces.
  • the terminal device configures the logical channel and the protocol stack according to the determined one of the communication interfaces, and sends the V2X service message on the logical channel.
  • the logical channel is one or more V2X dedicated logical channels.
  • the V2X dedicated logical channel may be configured to correspond to a logical channel of the PC5 interface, or may be configured as a logical channel corresponding to the Uu interface.
  • the V2X dedicated logical channel can be converted in different modes corresponding to the PC5 interface and the Uu interface.
  • each V2X dedicated logical channel is uniquely identified by a channel label.
  • the terminal device determines a communication interface, and configures a V2X dedicated logical channel for the PC5 interface or the Uu interface for the transmission of the V2X service message, where the configuration includes configuring a corresponding Packet Data Convergence Protocol (PDCP) entity.
  • Radio Link Control (RLC) entity Radio Link Control (RLC) entity, logical channel identifier (Logical Channel)
  • the protocol stack configuration parameters such as Identity (LCID)
  • LCID logical channel label for the V2X dedicated logical channel configured above.
  • the communication interface is a PC5 interface
  • the terminal device can configure a V2X dedicated logical channel for the PC5 interface and configure the protocol stack parameters.
  • the communication interface is a Uu interface
  • the terminal device needs to configure a V2X dedicated logical channel for the Uu interface according to the configuration information sent from the network side device, and configure the protocol stack parameters.
  • the channel label may be a V2X traffic channel identifier, and each unique V2X dedicated logical channel is associated with a unique V2X channel identifier as a channel label.
  • the channel label may be a scalar, such as a decimal number ranging from 0 to 10.
  • the value of the channel label may correspond to a set of V2X communication related parameters, and may include one or more of a priority of a V2X service message, a type of a service message, and a service message QoS level identifier QCI medium parameter. It can also include other V2X service related parameters, which are not specifically limited here.
  • the logical channels used for transmitting V2X service messages are all V2X dedicated logical channels.
  • the configured V2X dedicated logical channels may be one or more, and different V2X dedicated logical channels are configured corresponding to a set of independent PDCP entities, RLC entities, LCIDs, and the like, and are associated with unique channel labels, corresponding to
  • the V2X service messages are sent independently. According to the determined different communication interface types, the configuration and switching of the V2X dedicated logical channel and the protocol stack are flexibly performed, and flexible V2X service processing is realized.
  • the communication interface configuration information may be carried in a system information or a radio resource control RRC dedicated message, and the system information may be sent in a broadcast manner, which is not specifically limited herein.
  • the system information may be system information SystemInformationBlockType18 of the user D2D through, or other types of system information.
  • the RRC dedicated message may be an RRC connection reconfiguration message RRCConnectionReconfiguration, or other type of RRC dedicated message.
  • the first field and the second field are configured in the information or message carrying the communication interface configuration information.
  • the first field is used to identify that only the PC5 interface is supported, only the Uu interface is supported, or both the PC5 interface and the Uu interface are supported.
  • the second field is used to indicate the triggering condition of the communication interface, and the specific indication content is configured according to the identifier of the first field.
  • the first field identifier only supports the PC5 interface or only supports the Uu interface, and the second field If it is empty, no communication interface trigger condition is required; when the first field identifier supports both the PC5 interface and the Uu interface, the second field indicates that the trigger condition of the PC5 interface is determined and the trigger condition of the Uu interface is determined.
  • the network side device may send the interface indication information to the terminal device by using dedicated signaling, and specify a communication interface, such as a PC5 interface or a Uu interface, for sending the V2X service message.
  • a communication interface such as a PC5 interface or a Uu interface
  • the network side device may send interface indication information to the vehicle terminal device in its coverage by means of dedicated signaling at any time and under any condition, and specify a communication interface for transmitting the V2X service message for the terminal device.
  • the communication interface can be any one of a PC5 interface or a Uu interface.
  • the network side device can obtain the global information of the network wireless environment. Therefore, the terminal device can determine and indicate a communication interface for the terminal device to send the V2X service message according to the global information of the wireless environment of the current network.
  • the global information of the wireless environment may be the number of vehicle terminal devices in the current network, the load of the resource pool corresponding to the PC5 interface, the quality of the cellular link between the terminal device and the network side device, and the like.
  • the dedicated signaling may be a radio resource control RRC dedicated message.
  • the interface indication information is indication information of the first communication interface, and the first communication interface is a PC5 interface or a Uu interface; the communication interface configuration information further includes determining a communication interface trigger condition of the first communication interface. .
  • the first communication interface is determined as the communication interface.
  • the terminal device determines that the communication interface trigger condition is not met, determining that the second communication interface is a communication interface, where the second communication interface is another one of the PC5 interface and the Uu interface.
  • the communication interface configuration information includes the indication information of the PC5 and the communication interface trigger condition.
  • the PC5 interface is determined as the communication interface.
  • the communication interface triggering condition may be selectively configured based on factors such as a wireless transmission environment of the PC5 interface and the Uu interface, and/or a message type, and may be selected and configured according to actual needs.
  • the terminal device can select a communication interface for V2X message transmission between the PC5 interface and the Uu interface as needed. Therefore, it is necessary to implement a conversion method of the communication interface, so that after selecting the one communication interface, the terminal device stops the sending of the current V2X service message, and converts to the V2X service message by using the selected one of the communication interfaces. Send.
  • FIG. 4 is a flowchart showing a method for transmitting a V2X service message defined by a second embodiment of the present invention.
  • the terminal device detects a first communication interface that is currently used to send a V2X service message.
  • the terminal device determines a second communication interface, where the first or second communication interface is determined from at least two communication interfaces for transmitting V2X, where the second communication interface is different from the first communication interface;
  • S403 The terminal device stops sending the V2X service message through the first communication interface, and sends the V2X service message by using the second communication interface.
  • the second embodiment of the present invention defines another V2X service message sending method, so that the vehicle terminal device completes the conversion of different communication interfaces during the V2X message sending process, and improves the flexibility of V2X service message transmission.
  • the at least two communication interfaces for transmitting V2X include a PC5 interface and a Uu interface; the first communication interface is any one of a PC5 interface and a Uu interface, and the second communication The interface is the other one of the PC5 interface and the Uu interface.
  • the terminal device obtains a dedicated logical channel corresponding to the first communication interface, where each dedicated logical channel is uniquely identified by a channel label; a dedicated logical channel corresponding to the second communication interface and a protocol stack
  • the communication interface reconfiguration information is configured with a dedicated logical channel corresponding to the first communication interface, and the dedicated logical channel is a V2X dedicated logical channel.
  • the terminal device reports, to the network side device, one or more channel labels corresponding to the first communication interface, where the channel label is used to identify the first communication interface. a dedicated logical channel; the network side device generates communication interface reconfiguration information corresponding to the second communication interface, and sends the information to the terminal device, so that the terminal device configures the channel tag identifier according to the communication interface reconfiguration information A logical channel, generating a dedicated logical channel corresponding to the second communication interface.
  • the terminal device may send the configured channel label information associated with the V2X dedicated logical channel for the PC5 interface to the network side device in the form of a list.
  • the terminal device may report the one or more channel labels by using an RRC dedicated message.
  • the channel label information may be added to the RRC dedicated message Sidelink UEInformation as a field, or may be sent to the network side device by the terminal device as an independent RRC dedicated message.
  • the communication interface reconfiguration information sent by the network side device to the terminal device including The parameters and associated channel labels can be added to the RRC dedicated message RRCConnectionReconfiguration for transmission to the terminal device.
  • the terminal device acquires one or more channel labels corresponding to the first communication interface, and generates communication interface reconfiguration information corresponding to the second communication interface; Decoding communication interface reconfiguration information, configuring a dedicated logical channel identified by the channel label, and generating a dedicated logical channel corresponding to the second communication interface.
  • the terminal device receives the communication interface configuration information, where the communication interface configuration information is sent by the network side device, and the communication interface configuration information includes interface indication information, where the interface indication information is used to indicate that the V2X service message is sent. At least one communication interface; or the terminal device determines the second communication interface according to whether the communication interface trigger condition is satisfied.
  • the interface indication information indicates a communication interface
  • the communication interface is a PC5 interface or a Uu interface
  • the terminal device determines that the indicated one communication interface is the second communication interface.
  • the interface indication information indicates at least one communication interface
  • the at least one communication interface includes a PC5 interface and a Uu interface
  • the communication interface configuration information further includes a communication interface trigger condition
  • the terminal device triggers the condition according to the communication interface. Whether it is satisfied, the second communication interface is determined, and the second communication interface is one of a PC5 interface and a Uu interface.
  • the network side device may send the interface indication information to the terminal device by using dedicated signaling, and specify a communication interface, such as a PC5 interface or a Uu interface, for sending the V2X service message.
  • a communication interface such as a PC5 interface or a Uu interface
  • the V2X service message communication interface may not be used for communication, and the corresponding communication is not established.
  • V2X dedicated logical channel of the interface if the determined communication interface is a Uu interface, the network side device generates communication interface reconfiguration information and sends the communication interface reconfiguration information to the terminal device, so that the terminal device performs V2X dedicated logic for the Uu interface according to the communication interface reconfiguration information.
  • FIG. 5 is a schematic diagram showing a possible structure of a terminal device involved in the first embodiment of the present invention.
  • the terminal device may include a receiving unit 501, a processing unit 502, and a transmitting unit 503, and may further include a storage unit 504 for storing related data information according to actual needs.
  • the receiving unit 501 is configured to receive communication interface configuration information from a network side device, where the communication interface configuration information includes interface indication information, where the interface indication information is used to indicate that the transmitting unit 503 is configured to send at least one of the V2X service messages.
  • Communication Interface ;
  • the processing unit 502 is configured to determine, according to the communication interface configuration information, a communication interface from at least two communication interfaces for transmitting a V2X service message;
  • the transmitting unit 503 is configured to send the V2X service message by using the determined one of the communication interfaces.
  • the at least two communication interfaces for transmitting the V2X service message include a PC5 interface and a Uu interface, the interface indication information being used to indicate at least one of the PC5 interface and the Uu interface.
  • the interface indication information is indication information of the first communication interface, where the first communication interface is a PC5 interface or a Uu interface; then the processing unit 502 determines a first communication interface, and the sending unit 503 passes the The first communication interface sends the V2X service message.
  • the interface indication information indicates at least one communication interface, where the at least one communication interface includes a PC5 interface and a Uu interface, where the communication interface configuration information further includes determining a communication interface trigger condition of the PC5 interface or the Uu interface;
  • the processing unit 502 is configured to determine, when the communication interface trigger condition is satisfied, one of the PC5 interface and the Uu interface as the communication interface.
  • processing unit 502 is further configured to determine that the PC5 interface is used as the communication interface when one or more of the following communication interface trigger conditions are met:
  • the wireless environment measurement information corresponding to the PC5 interface is lower than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is lower than the second threshold
  • the message type to be transmitted is a cooperative awareness message CAM or a basic security class message BSM;
  • the link between the terminal device and the network side device is abnormal, and the abnormality includes at least one of a radio link failure RLF, a handover failure HOF, or an OoC outside the base station coverage.
  • the processor unit 502 is further configured to determine that the Uu interface is used as the communication interface when one or more of the following communication interface trigger conditions are met:
  • the wireless environment measurement information corresponding to the PC5 interface is higher than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold
  • the type of message to be transmitted is a distributed environment notification message DEMN or a telematics data Telematics message.
  • the processing unit 502 is further configured to: determine that the communication interface currently used by the V2X service message is a different communication interface than the determined one of the communication interfaces, and stop the transmitting unit 503 from passing the current The sending of the V2X service message by using the communication interface; the transmitting unit 503, configured to send the V2X service message by using the determined one of the communication interfaces.
  • the processing unit 502 configures a logical channel and a protocol stack according to the determined one of the communication interfaces; the transmitting unit 503 transmits the V2X service message on the configured logical channel.
  • the logical channel is one or more dedicated logical channels, wherein each dedicated logical channel is uniquely identified by a channel label.
  • the channel label indicates at least one of a priority of a service message, a type of a service message, and a service message QoS level identifier QCI.
  • the specific implementation manners of the communication interface configuration information receiving, the communication interface configuration, and the V2X service message transmission performed by the foregoing terminal device can be referred to the description of the method in the first embodiment of the present invention.
  • the method of the first embodiment of the present invention corresponding to FIG. 3 of the terminal device in this embodiment is based on the same concept, and the technical effects thereof are the same as those of the first embodiment of the present invention.
  • the specific functions of the receiving unit 501, the processing unit 502, and the transmitting unit 503, which are included in the terminal device in this embodiment, and the terminology and implementation details thereof correspond to the functions in the embodiment corresponding to FIG. 3 described above. For details, refer to the description in the method embodiment corresponding to FIG. 3 of the present invention, and details are not described herein again.
  • the terminal device in this embodiment can select a suitable communication interface for the V2X message transmission between the PC5 interface and the Uu interface, as needed, to improve the transmission performance of the V2X service message.
  • FIG. 6 is a schematic diagram showing another possible structure of a terminal device involved in the first embodiment of the present invention.
  • the terminal device may include a receiver 601, a processor 602, and a transmitter 603, and may further include a memory 604 for storing related data information according to actual needs.
  • the receiver 601 is configured to receive communication interface configuration information from a network side device, where the communication interface configuration information includes interface indication information, where the interface indication information is used to indicate at least one communication interface used by the transmitter to send a V2X service message. ;
  • the processor 602 is configured to determine, according to the communication interface configuration information, a communication interface from at least two communication interfaces for transmitting a V2X service message;
  • the transmitter 603 is configured to send the V2X service message by using the determined one of the communication interfaces.
  • the at least two communication interfaces for transmitting the V2X service message include a PC5 interface and a Uu interface, the interface indication information being used to indicate at least one of the PC5 interface and the Uu interface.
  • the interface indication information is indication information of the first communication interface, where the first communication interface is a PC5 interface or a Uu interface; then the processor 602 determines a first communication interface, and the transmitter 603 passes the The first communication interface sends the V2X service message.
  • the interface indication information indicates at least one communication interface, where the at least one communication interface includes a PC5 interface and a Uu interface, where the communication interface configuration information further includes determining a communication interface trigger condition of the PC5 interface or the Uu interface;
  • the processor 602 is configured to determine that one of the PC5 interface and the Uu interface is used as the communication interface when the communication interface trigger condition is met.
  • the processor 602 is further configured to: determine that the communication interface currently used by the V2X service message is a different communication interface than the determined one of the communication interfaces, and stop the transmitter 603 from passing the current The sending of the V2X service message by the used communication interface; the transmitter, configured to send the V2X service message using the determined one of the communication interfaces.
  • the processor 602 configures a logical channel and a protocol stack according to the determined one of the communication interfaces; the transmitter 603 transmits the V2X service message on the configured logical channel.
  • the specific implementation manners of the communication interface configuration information receiving, the communication interface configuration, and the V2X service message transmission performed by the foregoing terminal device can be referred to the description of the method in the first embodiment of the present invention.
  • the method of the first embodiment of the present invention corresponding to FIG. 3 of the terminal device in this embodiment is based on the same concept, and the technical effects thereof are the same as those of the first embodiment of the present invention.
  • the specific functions of the receiver 601, the processor 602, and the transmitter 603, which are included in the terminal device in this embodiment, and the terminology and implementation details therein correspond to the functions in the embodiment corresponding to FIG. 3 described above. For details, refer to the description in the method embodiment corresponding to FIG. 3 of the present invention, and details are not described herein again.
  • FIG. 7 is a schematic diagram showing a possible structure of a network side device involved in the first embodiment of the present invention.
  • the network side device includes a processing unit 701, a transmitting unit 702, and a receiving unit 703, and may further include a storage unit 704.
  • the processing unit 701 is configured to generate communication interface configuration information, where the communication interface configuration information includes interface indication information, where the interface indication information is used to indicate at least one communication interface used by the terminal device to send a V2X service message;
  • the transmitting unit 702 is configured to send the communication interface configuration information, where the communication interface configuration information is used by the terminal device to determine a communication interface from at least two communication interfaces for sending a V2X service message, where the determining is performed.
  • a communication interface is used by the terminal device to send the V2X service message.
  • the at least two communication interfaces for transmitting the V2X service message include a PC5 interface and a Uu interface, where the interface indication information is used to indicate at least one of the PC5 interface and the Uu interface.
  • the interface indication information is indication information of the first communication interface, where the first communication interface is a PC5 interface or a Uu interface, and the first communication interface is used by the terminal device to send the V2X service message.
  • the interface indication information indicates at least one communication interface, where the at least one communication interface includes a PC5 interface and a Uu interface, where the communication interface configuration information further includes determining a communication interface trigger condition of the PC5 interface or the Uu interface; The communication interface trigger condition is used by the terminal device to determine one of the PC5 interface and the Uu interface as a communication interface.
  • the communication interface trigger condition includes one or more of the following conditions:
  • the wireless environment measurement information corresponding to the PC5 interface is lower than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is lower than the second threshold
  • the message type to be transmitted is a cooperative awareness message CAM or a basic security class message BSM;
  • the link between the terminal device and the network side device is abnormal, and the abnormality includes at least one of a radio link failure RLF, a handover failure HOF, or an OoC outside the base station coverage.
  • the communication interface trigger condition includes one or more of the following conditions:
  • the wireless environment measurement information corresponding to the PC5 interface is higher than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold
  • the type of message to be transmitted is a distributed environment notification message DEMN or a telematics data Telematics message.
  • the specific implementation manner of the processing performed by the network side device for the communication interface configuration information can be referred to the description of the method in the first embodiment of the present invention.
  • the method corresponding to the network side device side of the first embodiment of the present invention corresponding to FIG. 3 is based on the same concept, and the technical effects brought about by the network side device in this embodiment are the same as those in the first embodiment of the present invention.
  • the specific functions of the processing unit 701, the transmitting unit 702, and the receiving unit 703 included in the network side device in this embodiment, and the terminology and implementation details therein correspond to the functions in the embodiment corresponding to FIG. 3 described above. For details, refer to the description in the method embodiment corresponding to FIG. 3 of the present invention, and details are not described herein again.
  • FIG. 8 is a schematic diagram showing another possible structure of the network side device involved in the first embodiment of the present invention.
  • the network side device includes a processor 801, a transmitter 802, and a receiver 803.
  • a storage unit (not shown) may also be included.
  • the processor 801 is configured to generate communication interface configuration information, where the communication interface configuration information includes interface indication information, where the interface indication information is used to indicate at least one communication interface used by the terminal device to send a V2X service message;
  • the transmitter 802 is configured to send the communication interface configuration information, where the communication interface configuration information is used by the terminal device to determine a communication interface from at least two communication interfaces for transmitting a V2X service message, where the determining is performed.
  • a communication interface is used by the terminal device to send the V8032X service message.
  • the at least two communication interfaces for transmitting the V2X service message include a PC5 interface and a Uu interface, where the interface indication information is used to indicate at least one of the PC5 interface and the Uu interface.
  • the interface indication information is indication information of the first communication interface, where the first communication interface is a PC5 interface or a Uu interface, and the first communication interface is used by the terminal device to send the V2X service message.
  • the interface indication information indicates at least one communication interface, where the at least one communication interface includes a PC5 interface and a Uu interface, where the communication interface configuration information further includes determining a communication interface trigger condition of the PC5 interface or the Uu interface; The communication interface trigger condition is used by the terminal device to determine one of the PC5 interface and the Uu interface as a communication interface.
  • the communication interface trigger condition includes one or more of the following conditions:
  • the wireless environment measurement information corresponding to the PC5 interface is lower than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is lower than the second threshold
  • the message type to be transmitted is a cooperative awareness message CAM or a basic security class message BSM;
  • the link between the terminal device and the network side device is abnormal, and the abnormality includes at least one of a radio link failure RLF, a handover failure HOF, or an OoC outside the base station coverage.
  • the communication interface trigger condition includes one or more of the following conditions:
  • the wireless environment measurement information corresponding to the PC5 interface is higher than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold
  • the type of message to be transmitted is a distributed environment notification message DEMN or a telematics data Telematics message.
  • the specific implementation manner of the processing performed by the network side device for the communication interface configuration information can be referred to the description of the method in the first embodiment of the present invention.
  • the method corresponding to the network side device side of the first embodiment of the present invention corresponding to FIG. 3 is based on the same concept, and the technical effects brought about by the network side device in this embodiment are the same as those in the first embodiment of the present invention.
  • the specific functions of the processor 801, the transmitter 802, and the receiver 803 included in the network side device in this embodiment, and the terminology and implementation details thereof correspond to the functions in the embodiment corresponding to FIG. 3 described above. For details, refer to the description in the method embodiment corresponding to FIG. 3 of the present invention, and details are not described herein again.
  • the present invention provides a structure of a possible terminal device.
  • the terminal device may include a transmitting unit, a processing unit, and a receiving unit, and may further include a storage unit as needed.
  • the transmitting unit is configured to send a V2X service message by using a communication interface
  • the processing unit is configured to detect a first communication interface that is currently used to send a V2X service message, and determine a second communication interface, and notify the transmitting unit to stop passing if the first communication interface is different from the second communication interface. Transmitting, by the first communication interface, a V2X service message, and using the second communication interface to send the V2X service message;
  • the first or second communication interface is determined from at least two communication interfaces for transmitting V2X service messages.
  • the at least two communication interfaces for sending V2X service messages include a PC5 interface and a Uu interface; the first communication interface is any one of a PC5 interface and a Uu interface, and the second The communication interface is another one of the PC5 interface and the Uu interface.
  • the processing unit is configured to obtain a dedicated logical channel corresponding to the first communication interface, and use a dedicated logical channel corresponding to the second communication interface and communication interface reconfiguration information of the protocol stack, and the configuration corresponds to the first communication interface.
  • Dedicated logical channel wherein each of said dedicated logical channels is uniquely identified by a channel label.
  • the processing unit is further configured to: when determining that the second communication interface is a Uu interface, report one or more channel labels corresponding to the first communication interface, where the channel label is used to identify a dedicated logical channel corresponding to the communication interface, and configuring a dedicated logical channel identified by the channel label according to the communication interface reconfiguration information to generate a dedicated logical channel corresponding to the second communication interface; the receiving unit is configured to receive The communication interface reconfiguration information corresponding to the second communication interface.
  • the processing unit is further configured to: when determining that the second communication interface is a PC5 interface, acquire one or more channel labels corresponding to the first communication interface, and generate a communication interface corresponding to the second communication interface. And reconfiguring the information; and configuring, according to the communication interface reconfiguration information, a dedicated logical channel identified by the channel label, and generating a dedicated logical channel corresponding to the second communication interface.
  • the receiving unit is configured to receive communication interface configuration information, and the communication interface configuration information includes interface indication information, where the interface indication information is used to indicate that the transmitter is configured to send a V2X service message. At least one communication interface.
  • the processing unit is further configured to determine that the interface indication information indicates a communication interface, where the communication interface is a PC5 interface or a Uu interface, and determining that the second communication interface is indicated by the interface indication information. a communication interface.
  • the processing unit is further configured to: determine that the interface indication information indicates at least one communication interface, where the at least one communication interface includes a PC5 interface and a Uu interface, and determine a second communication according to whether the communication interface trigger condition is met. interface.
  • the second communication interface is one of a PC5 interface and a Uu interface, and the communication interface trigger condition is included in the communication interface configuration information.
  • determining that the second communication interface is a PC5 interface when the processing unit determines that the communication interface trigger condition satisfies one or more of the following conditions, determining that the second communication interface is a PC5 interface:
  • the wireless environment measurement information corresponding to the PC5 interface is lower than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is lower than the second threshold
  • the message type to be transmitted is CAM or BSM;
  • the link between the terminal device and the network side device is abnormal, and the abnormality includes at least one of a radio link failure RLF, a handover failure HOF, or an OoC outside the base station coverage.
  • determining that the second communication interface is a Uu interface when the processing unit determines that the communication interface trigger condition satisfies one or more of the following conditions, determining that the second communication interface is a Uu interface:
  • the wireless environment measurement information corresponding to the PC5 interface is higher than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold
  • the message type to be transmitted is DEMN or vehicle internet data Telematics.
  • the specific implementation manner of the communication interface conversion performed during the V2X service message transmission process performed by the foregoing terminal device can be referred to the description of the method in the second embodiment of the present invention.
  • the method of the second embodiment of the present invention corresponding to the terminal device in the present embodiment is based on the same concept, and the technical effects thereof are the same as those in the second embodiment of the present invention.
  • the specific functions of the receiving unit, the processing unit, and the transmitting unit included in the terminal device in this embodiment, and related terminology and implementation details correspond to the functions in the embodiment corresponding to FIG. 4 described above. For details, refer to the description in the method embodiment corresponding to FIG. 4 of the present invention, and details are not described herein again.
  • the present invention provides a structure of another possible terminal device.
  • the terminal device can include a transmitter, a processor, and a receiver, and can also include a memory as needed.
  • the transmitter is configured to send a V2X service message by using a communication interface
  • the processor is configured to detect a first communication interface that is currently used to send a V2X service message, and determine a second communication interface, to notify the transmitter to stop passing if the first communication interface is different from the second communication interface Transmitting, by the first communication interface, a V2X service message, and using the second communication interface to send the V2X service message;
  • the first or second communication interface is determined from at least two communication interfaces for transmitting V2X service messages.
  • the at least two communication interfaces for sending V2X service messages include a PC5 interface and a Uu interface; the first communication interface is any one of a PC5 interface and a Uu interface. In one case, the second communication interface is another one of a PC5 interface and a Uu interface.
  • the processor is configured to obtain a dedicated logical channel corresponding to the first communication interface, and use a dedicated logical channel corresponding to the second communication interface and communication interface reconfiguration information of the protocol stack to configure a dedicated corresponding to the first communication interface.
  • a logical channel wherein each of the dedicated logical channels is uniquely identified by a channel label.
  • the processor is further configured to: when determining that the second communication interface is a Uu interface, report one or more channel labels corresponding to the first communication interface, where the channel label is used to identify a dedicated logical channel corresponding to the communication interface, and configuring a dedicated logical channel identified by the channel label according to the communication interface reconfiguration information to generate a dedicated logical channel corresponding to the second communication interface; the receiver is configured to receive The communication interface reconfiguration information corresponding to the second communication interface.
  • the processor is further configured to: when determining that the second communication interface is a PC5 interface, acquire one or more channel labels corresponding to the first communication interface, and generate a communication interface corresponding to the second communication interface. And reconfiguring the information; and configuring, according to the communication interface reconfiguration information, a dedicated logical channel identified by the channel label, and generating a dedicated logical channel corresponding to the second communication interface.
  • the receiver is configured to receive communication interface configuration information, and the communication interface configuration information includes interface indication information, where the interface indication information is used to indicate that the transmitter is configured to send a V2X service message. At least one communication interface.
  • the processor is further configured to determine that the interface indication information indicates a communication interface, where the communication interface is a PC5 interface or a Uu interface, and determining that the second communication interface is indicated by the interface indication information. a communication interface.
  • the processor is further configured to: determine that the interface indication information indicates at least one communication interface, where the at least one communication interface includes a PC5 interface and a Uu interface, and determine a second communication according to whether the communication interface trigger condition is met.
  • An interface wherein the second communication interface is one of a PC5 interface and a Uu interface, and the communication interface trigger condition is included in the communication interface configuration information.
  • determining that the second communication interface is a PC5 interface when the processor determines that the communication interface trigger condition satisfies one or more of the following conditions, determining that the second communication interface is a PC5 interface:
  • the wireless environment measurement information corresponding to the PC5 interface is lower than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is lower than the second threshold
  • the message type to be transmitted is CAM or BSM;
  • An abnormality occurs in the link between the terminal device and the network side device, and the abnormality includes the wireless link loss. At least one of the RLF, the handover failure HOF, or the OoC outside the base station coverage.
  • determining that the second communication interface is a Uu interface when the processor determines that the communication interface trigger condition satisfies one or more of the following conditions, determining that the second communication interface is a Uu interface:
  • the wireless environment measurement information corresponding to the PC5 interface is higher than the first threshold
  • the wireless environment measurement information corresponding to the Uu interface is higher than the second threshold
  • the message type to be transmitted is DEMN or vehicle internet data Telematics.

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Abstract

本发明实施例提供了一种V2X业务消息的发送方法、终端设备和网络侧设备。该V2X业务消息发送方法包括:终端设备接收来自网络侧设备的通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示用于发送V2X业务消息的至少一个通信接口;所述终端设备根据所述通信接口配置信息从至少两个用于发送V2X的通信接口中确定一个通信接口;所述终端设备通过确定的所述一个通信接口发送所述V2X业务消息。这种方式使得车辆终端设备可以根据需要在PC5接口和Uu接口之间为V2X消息发送选择合适的通信接口,提高V2X业务消息的传输性能。

Description

一种业务消息发送方法、终端设备以及网络设备 技术领域
本发明涉及无线通信领域,尤其涉及一种车辆终端设备之间的业务消息发送方法、终端设备以及网络设备。
背景技术
车辆到车辆(vehicle to vehicle,V2V)通信是一种在车辆与车辆之间通过无线通信技术进行数据传输和信息交互的通信技术。作为智能交通系统(Intelligent Transportation System,ITS)和车联网研究中的一项重要内容,V2V通信主要提供并支持与道路交通安全相关的应用和业务传输,被广泛认为是提高车辆安全行驶、减少交通事故的关键技术。
V2V通信所承载的V2V业务通过传输V2V消息实现,V2V消息主要包括一些与车辆行驶状态有关的信息,如车速、行驶方向、经纬度、加速度、是否刹车、以及是否变道等中的至少一种,和/或一些与周围道路环境相关的信息,如事故、道路施工、交通设施故障等中的至少一种。通过V2V通信,车辆可以与其周围的其他车辆进行V2V消息交互,使得车辆驾驶系统能够及时获取路况信息或接收与车辆行驶安全相关的信息服务,辅助车辆驾驶员或者车辆驾驶系统对危险进行预判并进行相应操作,尽可能避免事故发生。由于V2V通信事关车辆行驶安全的关键信息,需要及时准确地在车辆之间进行V2V消息交互,因而具有“高可靠,短时延”的通信需求。
第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)着手进行的“基于LTE(Long Term Evolution,长期演进)的车辆到everything(vehicle to everything,V2X)通信”标准化工作涵盖了V2V,车辆到基础设施(vehicle to infrastructure,V2I)以及车辆到手持终端(vehicle to pedestrian,V2P)等车辆通信场景,该标准化工作旨在基于LTE通信系统提供与道路安全相关的车辆无线通信。基于LTE的V2V通信是该标准化工作中的重要组成部分,提供了设备到设备(device to device,D2D)直接通信和LTE基站中转通信两种通信技术:
D2D直接通信技术允许用户设备(user equipment,UE)间通过PC5接口直接进行通信,其传输时延相对较低,但由于配置的资源非常有限,容易 导致V2V消息传输拥塞及数据碰撞。
LTE基站中转通信技术通过Uu接口进行通信,可靠性较高,但是需要UE首先将数据发送到基站,再由基站将数据转发给其他UE,传输时延相对较高及占用较多资源。
由此可见,用户设备无论采用PC5接口还是Uu接口进行V2X通信,都有可能无法满足V2X业务的通信需求。
发明内容
本发明实施例提出了一种V2X业务消息的发送方法、终端设备以及网络侧设备,提高V2X业务消息的传输性能。
第一方面,本发明提供了一种V2X业务消息发送方法,包括:
终端设备接收来自网络侧设备的通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示用于发送V2X业务消息的至少一个通信接口;所述终端设备根据所述通信接口配置信息从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口;所述终端设备通过确定的所述一个通信接口发送所述V2X业务消息。通过上述V2X业务消息发送方法,终端设备可以根据网络侧设备的通信接口配置信息,合理选择通信接口进行消息的发送,提高了V2X业务消息传输的灵活性。
在一个可能的设计中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口,所述接口指示信息用于指示PC5接口和Uu接口中的至少一个接口。所述接口指示信息为第一通信接口的指示信息,所述第一通信接口为PC5接口或Uu接口,终端设备确定第一通信接口以发送所述V2X业务消息;或者,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包含确定PC5接口或Uu接口的通信接口触发条件;所述终端设备确定通信接口触发条件满足时,确定PC5接口和Uu接口中的一个作为通信接口。通过上述设计,实现终端设备根据网络侧设备的指示进行通信接口的合理选择。
在一个可能的设计中,所述终端设备确定满足以下条件中的一个或多个时,确定PC5接口作为通信接口:
PC5接口对应的无线环境测量信息低于第一阈值;
Uu接口对应的无线环境测量信息低于第二阈值;
当前正在使用Uu接口的通信质量未满足一定要求;
待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
在一个可能的设计中,所述终端设备确定以下条件中的一个或多个满足时,确定Uu接口作为通信接口:
PC5接口对应的无线环境测量信息高于第一阈值;
Uu接口对应的无线环境测量信息高于第二阈值;
当前正在使用PC5接口的通信质量未满足一定要求;
待传输的消息类型为分布式环境通知消息DENM或车载互联网数据Telematics消息。
在一个可能的设计中,PC5接口对应的无线环境测量信息包括PC5接口对应的资源池的负载量。所述资源池的负载量,可以是PC5接口的D2D直通资源池中资源占用的比例。当所述PC5接口对应的无线环境测量信息高于第一阈值时,说明当前PC5接口对应的无线环境负载较重,不适合执行V2X业务。
在一个可能的设计中,Uu接口对应的无线环境测量信息包括Uu接口对应的蜂窝链路信号强度。所述蜂窝链路信号强度可以为参考信号接收功率(Reference Signaling Receiving Power,简称RSRP)、或信道质量信息(Channel Quality Information,简称CQI)等。当所述Uu接口对应的无线环境测量信息高于第二阈值时,说明当前Uu接口对应的无线环境条件较好,信号传输效率较高,适合执行V2X业务。
在一个可能的设计中,确定所述PC5接口的通信接口触发条件和确定所述Uu接口的通信接口触发条件是互斥的。需要说明的是,这里的互斥代表确定PC5接口的通信接口触发条件和确定所述Uu接口的通信接口触发条件没有交集,不存在同时确定PC5接口和Uu接口均可以用于V2X业务消息的发送的情况。
在一个可能的设计中,所述通信接口配置信息承载在系统信息或者无线资源控制RRC专用消息中。
在一个可能的设计中,终端设备确定所述V2X业务消息当前使用的通信接口是与确定的所述一个通信接口不同的通信接口,则停止通过当前使用的通信接口进行的V2X业务消息的发送,并使用所述确定的一个通信接口进行所述V2X业务消息的发送。
在一个可能的设计中,终端设备根据确定的所述一个通信接口配置逻辑信道以及协议栈,并在所述逻辑信道上发送所述V2X业务消息。所述逻辑信道为一个或多个专用逻辑信道,其中每个专用逻辑信道通过信道标签进行唯一标识。所述信道标签指示业务消息的优先级、业务消息的类型、业务消息QoS等级标识QCI中的至少一个。
第二方面,本发明提供了一种V2X业务消息发送方法,包括:
网络侧设备生成通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示终端设备用于发送V2X业务消息的至少一个通信接口;所述网络侧设备发送所述通信接口配置信息,所述通信接口配置信息用于所述终端设备从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口,所述确定的一个通信接口用于终端设备发送所述V2X业务消息。
在一个可能的设计中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口,所述接口指示信息用于指示PC5接口和Uu接口中的至少一个接口。所述接口指示信息为第一通信接口的指示信息,所述第一通信接口为PC5接口或Uu接口,所述第一通信接口用于终端设备发送所述V2X业务消息;或者,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包含确定PC5接口或Uu接口的通信接口触发条件,所述通信接口触发条件用于所述终端设备确定PC5接口和Uu接口中的一个作为通信接口。
在一个可能的设计中,所述通信接口触发条件包括以下条件中的一个或者多个满足时,确定PC5接口作为通信接口:
PC5接口对应的无线环境测量信息低于第一阈值;
Uu接口对应的无线环境测量信息低于第二阈值;
当前正在使用Uu接口的通信质量未满足一定要求;
待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失 败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
在一个可能的设计中,所述通信接口触发条件还包括以下条件中的一个或者多个满足时,确定Uu接口作为通信接口:
PC5接口对应的无线环境测量信息高于第一阈值;
Uu接口对应的无线环境测量信息高于第二阈值;
当前正在使用PC5接口的通信质量未满足一定要求;
待传输的消息类型为分布式环境通知消息DENM或车载互联网数据Telematics消息。
在一个可能的设计中,网络侧设备通过系统信息或者无线资源控制RRC专用消息发送所述通信接口配置信息。
在一个可能的设计中,网络侧设备可以获取网络无线环境的全局信息,因此可以根据当前网络的无线环境的全局信息,为终端设备确定并指示一个通信接口,用于终端设备进行V2X业务消息的发送。
第三方面,本发明提供了一种V2X业务消息发送方法,包括:
终端设备检测当前用于发送V2X业务消息的第一通信接口;终端设备确定第二通信接口,所述第一或第二通信接口是从至少两个用于发送V2X业务消息的通信接口中确定的,所述第二通信接口不同于第一通信接口;终端设备停止通过第一通信接口进行V2X业务消息的发送,并使用第二通信接口进行所述V2X业务消息的发送。
在一个可能的设计中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口;所述第一通信接口为PC5接口和Uu接口中的任意一个,所述第二通信接口为PC5接口和Uu接口中的另外一个。
在一个可能的设计中,终端设备获得与所述第一通信接口对应的专用逻辑信道,每个专用逻辑信道通过信道标签进行唯一标识;利用第二通信接口对应的专用逻辑信道以及协议栈的通信接口重配置信息,配置与所述第一通信接口对应的专用逻辑信道。
在一个可能的设计中,所述第二通信接口为Uu接口时,终端设备上报第一通信接口对应的一个或多个信道标签,所述信道标签用于标识与所述第一通信接口对应的专用逻辑信道;终端设备接收与第二通信接口对应的通信接口重配置信息,并根据所述通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道。所述第二通 信接口为PC5接口时,终端设备获取第一通信接口对应的一个或多个信道标签,并生成对应于第二通信接口的通信接口重配置信息;终端设备根据所述通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道。
在一个可能的设计中,所述终端设备接收通信接口配置信息,所述通信接口配置信息由网络侧设备发送,并且所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示终端设备用于发送V2X业务消息的至少一个通信接口;所述终端设备根据通信接口配置信息确定所述第二通信接口。具体的,所述接口指示信息指示第二通信接口,所述第二通信接口为PC5接口或Uu接口,则终端设备根据所述指示信息确定第二通信接口;或者,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,则所述通信接口配置信息还包括通信接口触发条件,所述终端设备根据通信接口触发条件是否满足,确定第二通信接口,所述第二通信接口为PC5接口和Uu接口中的一个。
在一个可能的设计中,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,终端设备确定满足以下条件中的一个或者多个时,确定第二通信接口为PC5接口:
PC5接口对应的无线环境测量信息低于第一阈值;
Uu接口对应的无线环境测量信息低于第二阈值;
当前正在使用Uu接口的通信质量未满足一定要求;
待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
在一个可能的设计中,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,终端设备确定满足以下条件中的至少一个时,确定第二通信接口为Uu接口:
PC5接口对应的无线环境测量信息高于第一阈值;
Uu接口对应的无线环境测量信息高于第二阈值;
当前正在使用PC5接口的通信质量未满足一定要求;
待传输的消息类型为分布式环境通知消息DENM或车载互联网数据Telematics消息。
第四方面,本发明提供了一种终端设备,包括:接收器,用于接收来自网络侧设备的通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示发射器用于发送V2X业务消息的至少一个通信接口;处理器,用于根据所述通信接口配置信息从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口;发射器,用于通过确定的所述一个通信接口发送所述V2X业务消息。
在一个可能的设计中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口,所述接口指示信息用于指示PC5接口和Uu接口中的至少一个接口。所述接口指示信息为第一通信接口的指示信息,所述第一通信接口为PC5接口或Uu接口;所述处理器确定第一通信接口;所述发射器通过所述第一通信接口发送所述V2X业务消息。所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包含确定PC5接口或Uu接口的通信接口触发条件;所述处理器,用于确定通信接口触发条件满足时,确定PC5接口和Uu接口中的一个作为通信接口。
在一个可能的设计中,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口。所述处理器,还用于确定以下通信接口触发条件中的一个或多个满足时,确定PC5接口作为通信接口:
PC5接口对应的无线环境测量信息低于第一阈值;
Uu接口对应的无线环境测量信息低于第二阈值;
当前正在使用Uu接口的通信质量未满足一定要求;
待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
在一个可能的设计中,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口。所述处理器,还用于确定以下通信接口触发条件中的一个或多个满足时,确定Uu接口作为通信接口:
PC5接口对应的无线环境测量信息高于第一阈值;
Uu接口对应的无线环境测量信息高于第二阈值;
当前正在使用PC5接口的通信质量未满足一定要求;
待传输的消息类型为分布式环境通知消息DENM或车载互联网数据 Telematics消息。
第五方面,提供了另一种终端设备,该终端设备具有实现上述方法流程中终端设备行为的功能。所述功能可以通过终端设备中的硬件执行相应的软件实现,也可以在硬件或软件中包括一个或多个与上述功能相对应的单元来实现。
第六方面,本发明提供了一种网络侧设备,包括:处理器,用于生成通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示终端设备用于发送V2X业务消息的至少一个通信接口;发射器,用于通过系统信息或者无线资源控制RRC专用消息发送所述通信接口配置信息发送所述通信接口配置信息,所述通信接口配置信息用于所述终端设备从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口,所述确定的一个通信接口用于终端设备发送所述V2X业务消息。
在一个可能的设计中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口,所述接口指示信息用于指示PC5接口和Uu接口中的至少一个接口。所述接口指示信息为第一通信接口的指示信息,所述第一通信接口为PC5接口或Uu接口,所述第一通信接口用于终端设备发送所述V2X业务消息。所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包含确定PC5接口或Uu接口的通信接口触发条件;所述通信接口触发条件用于所述终端设备确定PC5接口和Uu接口中的一个作为通信接口。
在一个可能的设计中,所述通信接口触发条件包括以下条件中的一个或者多个满足时,确定PC5接口作为通信接口:
PC5接口对应的无线环境测量信息低于第一阈值;
Uu接口对应的无线环境测量信息低于第二阈值;
当前正在使用Uu接口的通信质量未满足一定要求;
待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
在一个可能的设计中,所述通信接口触发条件包括以下条件中的一个或者多个满足时,确定Uu接口作为通信接口:
PC5接口对应的无线环境测量信息高于第一阈值;
Uu接口对应的无线环境测量信息高于第二阈值;
当前正在使用PC5接口的通信质量未满足一定要求;
待传输的消息类型为分布式环境通知消息DENM或车载互联网数据Telematics消息。
第七方面,提供了另一种网络侧设备,该网络侧设备具有实现上述方法流程中网络侧设备行为的功能。所述功能可以通过网络侧设备中的硬件执行相应的软件实现,也可以在硬件或软件中包括一个或多个与上述功能相对应的单元来实现。
第八方面,本发明提供了一种终端设备,包括:发射器,用于通过通信接口发送V2X业务消息;处理器,用于检测当前用于发送V2X业务消息的第一通信接口,并确定第二通信接口,在第一通信接口不同于第二通信接口的情况下,通知所述发射器停止通过第一通信接口进行V2X业务消息的发送,使用第二通信接口进行所述V2X业务消息的发送;其中,所述第一或第二通信接口是从至少两个用于发送V2X业务消息的通信接口中确定。
在一个可能的设计中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口;所述第一通信接口为PC5接口和Uu接口中的任意一个,所述第二通信接口为PC5接口和Uu接口中的另外一个。
在一个可能的设计中,所述处理器用于获得与所述第一通信接口对应的专用逻辑信道,利用第二通信接口对应的专用逻辑信道以及协议栈的通信接口重配置信息,配置与所述第一通信接口对应的专用逻辑信道;其中每个所述专用逻辑信道通过信道标签进行唯一标识。具体的,所述处理器确定所述第二通信接口为Uu接口时,上报第一通信接口对应的一个或多个信道标签,所述信道标签用于标识与所述第一通信接口对应的专用逻辑信道,并根据通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道;所述接收器,用于接收与第二通信接口对应的所述通信接口重配置信息。所述处理器在确定所述第二通信接口为PC5接口时,获取第一通信接口对应的一个或多个信道标签,并生成对应于第二通信接口的通信接口重配置信息;并根据所述通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道。
在一个可能的设计中,所述接收器,用于接收通信接口配置信息,并且 所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示发射器用于发送V2X业务消息的至少一个通信接口。所述接口指示信息指示第二通信接口,所述第二通信接口为PC5接口或Uu接口;所述处理器,用于根据所述指示信息确定第二通信接口;或者所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包括通信接口触发条件;所述处理器,用于根据通信接口触发条件是否满足,确定第二通信接口。
在一个可能的设计中,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口时,所述处理器确定所述通信接口触发条件满足以下条件中的一个或多个时,确定第二通信接口为PC5接口:
PC5接口对应的无线环境测量信息低于第一阈值;
Uu接口对应的无线环境测量信息低于第二阈值;
当前正在使用Uu接口的通信质量未满足一定要求;
待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
在一个可能的设计中,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口时,所述处理器确定所述通信接口触发条件满足以下条件中的一个或多个时,确定第二通信接口为Uu接口:
PC5接口对应的无线环境测量信息高于第一阈值;
Uu接口对应的无线环境测量信息高于第二阈值;
当前正在使用PC5接口的通信质量未满足一定要求;
待传输的消息类型为分布式环境通知消息DENM或车辆互联网数据Telematics消息。
第九方面,提供了另一种终端设备,该终端设备具有实现上述方法流程中终端设备行为的功能。所述功能可以通过终端设备中的硬件执行相应的软件实现,也可以在硬件或软件中包括一个或多个与上述功能相对应的单元来实现。
相较于现有技术,本发明提供的方案使得终端设备可以在基于PC5接口的D2D直接通信方式和基于Uu接口的LTE基站中转通信方式之间进行选择并转换,充分利用两种通信方式的优势,提高V2X业务消息的传输性能。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本发明实施例所涉及V2X业务消息通信协议栈示意图;
图2是本发明实施例所涉及的V2X业务消息通信应用场景示意图;
图3是本发明实施例公开的一种V2X业务消息发送的流程示意图;
图4是本发明实施例公开的一种V2X业务消息发送的流程示意图;
图5为本发明实施例公开的一种终端设备的一种可能的结构示意图;
图6为本发明实施例公开的一种终端设备的另一种可能的结构示意图;
图7为本发明实施例公开的一种网络侧设备的一种可能的结构示意图;
图8为本发明实施例公开的一种网络侧设备的另一种可能的结构示意图。
具体实施方式
为了使本领域的技术人员更好地理解本发明实施例的方案,下面结合附图和实施方式对本发明实施例作进一步说明。
下面首先对V2V通信技术中D2D直接通信技术和LTE基站中转通信技术的通信过程做简单说明。
D2D直接通信技术:
D2D直接通信技术中,在基站的控制下,用户设备能够采用广播的形式直接与其他用户设备进行通信。用户设备间直接进行通信的空中接口称为PC5接口,对应的无线链路称为D2D链路(Sidelink,SL)。在通过PC5接口进行通信的通信路径中,UE配置PC5接口对应的无线协议栈并通过该协议栈处理数据,在获取D2D直接通信资源后通过PC5接口传输处理后的数据。
为了防止D2D直接通信对LTE系统的已有通信产生干扰,LTE系统将 配置一部分专门用于D2D直接通信的资源池(Resource Pool)。所谓资源池是指一组用于无线通信的时间、频率资源的集合。D2D直接通信数据,仅能使用LTE系统配置的D2D直接通信资源池中的D2D直接通信资源在PC5接口进行传输。
值得注意的是,现有D2D直接通信技术中,UE具有两种获取D2D直接通信资源的方式,分别是基于UE自主选择的方式以及基于基站调度的方式。基于UE自主选择的方式指UE从基站配置的D2D直接通信资源池中自主选择资源,基于基站调度的方式指基站从D2D直接通信资源池中为UE选择资源。虽然D2D直接通信技术具有时延低且占用资源较少等优点,但是在D2D直接通信资源有限和/或业务量较大的情况下,由于D2D直接通信资源池负载较高,UE自主资源选择的方式将使得UE传输的数据频繁碰撞,造成UE间数据传输的严重干扰,显著影响通信性能。而对于基于基站调度的方式,UE的传输数据会因为难以及时获得足够的传输资源,从而造成数据传输拥塞,迫使UE丢弃无法及时传输的数据包,严重影响用户服务环境。
LTE基站中转通信技术:
LTE基站中转通信技术中,UE首先将V2V消息发送给基站,再由基站将该V2V消息发送给其他UE进行接收,其中UE与基站进行上行传输或下行传输的空中接口称为Uu接口。在通过Uu接口进行通信的通信路径中,UE采用上行(Uplink,UL)单播的方式将V2V消息发送给基站,基站采用下行(Downlink,DL)广播的方式将该V2V消息发送给其他UE。具体的,UE配置Uu接口的无线承载部分,通过Uu接口对应的无线协议栈处理数据,并通过MME(mobility management entity,移动性管理实体)配置基站-服务网关(serving gateway,S-GW)/PDN网关(PDN gateway,P-GW)-V2V服务器的核心网承载部分,采用LTE系统的上行资源通过Uu接口传输处理后的数据。
LTE基站中转通信技术采用基站集中资源调度方式,基站为各个UE调度相互正交的无线资源,有效解决了UE间通信的干扰问题,是一种可靠性较高的传输方式。但是,LTE基站中转通信技术需要发送端UE首先使用上行资源将数据发送给基站,再由基站利用下行资源将数据转发给接收端UE,才能实现UE间的通信和信息交互,与允许UE间直接进行通信的D2D直接通信技术相比,LTE基站中转通信技术的资源利用率相对较低,而且时延相 对较高。
通过上述对现有的V2V通信技术的介绍和优缺点分析,本发明实施例提供了一种V2X业务的消息发送方法和装置,能够灵活地发送V2X业务的消息。
图1所示为从终端设备的角度,使用Uu接口的LTE基站中转通信技术(左)以及使用PC5接口的D2D直接通信技术(右)所对应的不同的无线协议栈。作为发送端的终端设备的蜂窝上行数据传输需由Uu接口上行协议栈进行处理、并通过LTE系统上行资源发送给基站;而其D2D数据传输则将由PC5接口的D2D直通协议栈进行处理、并利用LTE系统所配置的D2D直通资源进行终端设备间的D2D数据传输。
图2所示为本发明实施例的通信场景图,需要说明的是,该通信场景图只是示意说明,本发明的应用范围不限于此。以V2X业务中的V2V业务为例,如图2所示,该通信场景图中包括车辆用户设备V-UE1至V-UE7以及基站e-NodeB,当然,该通信场景图中还可以包括例如MME,S-GW/P-GW,V2V服务器等核心网承载部分,本发明实施例并不以此为限。在该通信场景图中,车辆用户设备V-UE之间可以进行V2V通信,例如车辆用户设备V-UE1可以通过LTE基站中转通信技术与其他车辆用户设备进行V2V通信,V-UE1通过Uu接口,采用UL单播的方式将V2V消息上传给基站,基站采用DL广播的方式将该V2V消息广播给其他车辆用户设备V-UE2~V-UE4。车辆用户设备V-UE5通过PC5接口,采用D2D直通技术,将其所生成的V2V消息直接广播给周围的车辆V-UE6~V-UE7;V-UE5在Uu接口也将与基站保持UL和DL连接,但仅限于与基站间的控制信息交互,而不包含任何的V2V消息本身。
需要说明的是,虽然在前述部分中以V2V业务为例对V2X业务进行了介绍,但本领域技术人员应当知晓,本发明实施例不仅仅适用于V2V业务,也可以适用于其他V2X业务,例如V2I,V2P,以及新的V2X业务。
本发明实施例涉及的终端设备,可以是指向用户提供语音和/或数据连通性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,无线终端可以是移动终端,如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机,例如,可以是便携式、袖珍式、 手持式、计算机内置的或者车载的移动装置(例如车辆用户设备V-UE),它们与无线接入网交换语言和/或数据。例如,个人V2X业务(PCS,Personal Communication Service)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(WLL,Wireless Local Loop)站、个人数字助理(PDA,Personal Digital Assistant)等设备。无线终端也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station),移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device)、或用户装备(User Equipment)。
本发明实施例所涉及的网络设备,可以是基站,或者接入点,或者可以是指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换,作为无线终端与接入网的其余部分之间的路由器,其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如,基站可以是GSM或CDMA中的基站(BTS,Base Transceiver Station),也可以是WCDMA中的基站(NodeB),还可以是LTE中的演进型基站(eNB或e-NodeB,evolutional Node B),本申请并不限定。
下面结合第一实施例说明本发明如何实现灵活地执行V2X业务。
图3示出了本发明第一实施例定义的V2X业务消息的发送方法流程。
S301:终端设备接收来自网络侧设备的通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示用于发送V2X业务消息的至少一个通信接口;
S302:所述终端设备根据所述通信接口配置信息从至少两个用于发送V2X的通信接口中确定一个通信接口;
S303:所述终端设备通过确定的所述一个通信接口发送所述V2X业务消息。
本发明第一实施例定义了一种V2X业务消息发送方法,使得车辆终端设备可以根据需要在PC5接口和Uu接口之间为V2X消息发送选择合适的通信接口,提高V2X业务消息的传输性能。
在一可选的实施例中,所述至少两个用于发送V2X的通信接口包括PC5 接口和Uu接口,所述接口指示信息用于指示PC5接口和Uu接口中的至少一个接口。具体的,网络侧设备可以根据自身功能是否兼具支持PC5接口及Uu接口传输功能,和/或其所属运营商对V2X业务的运营策略,例如是否采用PC5接口和/或Uu接口支持V2V业务传输,来配置可供选择的V2X传输接口,并通过接口指示信息进行可供选择的V2X传输接口的指示。这可以取决于基站自身的功能以及运营商的运营策略,此处不做具体限制。
例如,所述接口指示信息为第一通信接口的指示信息,所述第一通信接口为PC5接口或Uu接口;终端设备确定第一通信接口以发送所述V2X业务消息。
可选的,第一通信接口为PC5接口,则终端设备为V2X业务确定通过PC5接口进行通信。在这种情况下,终端设备配置PC5接口对应的无线协议栈并通过该协议栈处理数据,并获取D2D直接通信资源传输处理后的数据。可选的,终端设备基于自主选择的方式从D2D直接通信的资源池获取D2D直接通信资源,或者,终端设备基于基站调度的方式从D2D直接通信的资源池获取D2D直接通信资源。
可选的,第一通信接口为Uu接口,则终端设备为V2X业务确定通过Uu接口进行通信,在这种情况下,终端设备配置Uu接口对应的无线协议栈并通过该协议栈处理数据,并建立终端设备与网络侧设备的端到端连接以及配置专用承载,通过该专用承载传输处理后的数据。
又如,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口。在这种情况下,所述通信接口配置信息还包含确定PC5接口或Uu接口的通信接口触发条件。所述终端设备确定通信接口触发条件满足时,确定PC5接口和Uu接口中的一个作为通信接口,所述通信接口触发条件可以基于PC5接口及Uu接口的无线传输环境、和/或消息类型等因素进行选择性配置,具体可以根据实际需要进行选择和配置。
可选的,所述通信接口触发条件满足以下条件中的一个或多个时,确定PC5接口作为通信接口:
PC5接口对应的无线环境测量信息低于第一阈值;
Uu接口对应的无线环境测量信息低于第二阈值;
当前正在使用Uu接口的通信质量未满足一定要求;
待传输的消息类型为协作感知消息(Cooperative Awareness Message,简 称CAM)或基础安全类消息(Basic Safety Message,简称BSM);
终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败(Radio Link Failure,简称RLF)、切换失败(Handover Failure,简称HOF)或者处于基站覆盖外(Out of Cover,简称OoC)的至少一种。
具体的,PC5接口对应的无线环境测量信息包括PC5接口对应的资源池的负载量。所述资源池的负载量,可以是PC5接口的D2D直通资源池中资源占用的比例。当所述PC5接口对应的无线环境测量信息低于第一阈值时,说明当前PC5接口对应的无线环境负载适度,适合执行V2X业务。
具体的,Uu接口对应的无线环境测量信息包括Uu接口对应的蜂窝链路信号强度。所述蜂窝链路信号强度可以为参考信号接收功率(Reference Signaling Receiving Power,简称RSRP)、或信道质量信息(Channel Quality Information,简称CQI)等。当所述Uu接口对应的无线环境测量信息低于第二阈值时,说明当前Uu接口对应的无线环境条件较差,容易造成信号传输效率低下,不适合执行V2X业务。
具体的,当前正在使用Uu接口的通信质量不满足要求,包括车辆终端设备当前正在使用Uu接口作为传输接口进行V2X消息传输,但是V2X业务的服务质量(Quality of Service,简称QoS)需求未得到满足,所述Uu接口不适合用于执行V2X业务。
可选的,所述通信接口触发条件满足以下条件中的一个或多个时,确定Uu接口作为通信接口:
PC5接口对应的无线环境测量信息高于第一阈值;
Uu接口对应的无线环境测量信息高于第二阈值;
当前正在使用PC5接口的通信质量未满足一定要求;
待传输的消息类型为分布式环境通知消息(Decentralized Environmental Notification Message,简称DENM)或Telematics消息。
其中,所述Telematics是无线通信技术、卫星导航系统、网络通信技术和车载电脑的综合技术,Telematics消息是一种主流的车联网业务消息类型。
具体的,PC5接口对应的无线环境测量信息包括PC5接口对应的资源池的负载量。所述资源池的负载量,可以是PC5接口的D2D直通资源池中资源占用的比例。当所述PC5接口对应的无线环境测量信息高于第一阈值时,说明当前PC5接口对应的无线环境负载较重,不适合执行V2X业务。
具体的,Uu接口对应的无线环境测量信息包括Uu接口对应的蜂窝链路信号强度。所述蜂窝链路信号强度可以为参考信号接收功率(Reference Signaling Receiving Power,简称RSRP)、或信道质量信息(Channel Quality Information,简称CQI)等。当所述Uu接口对应的无线环境测量信息高于第二阈值时,说明当前Uu接口对应的无线环境条件较好,信号传输效率较高,适合执行V2X业务。
具体的,当前正在使用PC5接口的通信质量不满足要求,包括车辆终端设备当前正在使用PC5接口作为通信接口进行V2X消息传输,但是V2X业务的服务质量(Quality of Service,简称QoS)需求未得到满足,所述PC5接口不适合用于执行V2X业务。
可选的,确定所述PC5接口的通信接口触发条件和确定所述Uu接口的通信接口触发条件可以是互斥的。需要说明的是,这里的互斥代表确定PC5接口的通信接口触发条件和确定所述Uu接口的通信接口触发条件没有交集,不存在同时确定PC5接口和Uu接口均可以用于V2X业务消息的发送的情况。
例如,定义一组通信接口触发条件,若满足该组通信接口触发条件,则确定PC5接口和Uu接口中的一个作为通信接口进行V2X业务消息的发送,否则确定另外一个作为通信接口进行V2X业务消息的发送。其中,所述一组通信接口触发条件可以包含一个或多个通信接口触发条件。
其中,所述一组通信接口触发条件可以包含本发明第一实施例中所定义的通信接口触发条件中的一个或多个,也可以包含根据实际的网络环境和需求定义的其他相关条件。可选的,若所述一组通信接口触发条件为“PC5接口对应的无线环境测量信息低于第一阈值”,满足上述触发条件时则确定PC5接口作为通信接口,不满足则确定Uu接口作为通信接口。可选的,若所述一组通信接口触发条件为“PC5接口对应的PC5接口对应的无线环境测量信息高于第一阈值,并且Uu接口对应的无线环境测量信息高于第二阈值”,满足上述触发条件时则确定Uu接口作为通信接口,不满足则确定PC5接口作为通信接口。所述一组通信接口触发条件可以为一个通信触发条件,或者多个通信触发条件的集合。
本发明实施例中终端设备可以在达到上述通信接口触发条件中的至少一个时执行为V2X业务确定通信接口的相应步骤,进而通过确定的通信接 口发送所述V2X业务的消息。由于在达到上述触发条件时,往往是需要执行V2X业务或者通信环境发生了变化的情况,终端设备在达到上述触发条件时执行为V2X业务确定通信路径的相应步骤,能够使得终端设备灵活地为V2X业务选择通信路径,进一步地,还能够从至少两个通信接口中选择更适合的通信接口来发送所述V2X业务的消息,例如选择更可靠或更高效的通信接口。
可选的,所述终端设备确定通信接口触发条件不满足时,可以确定PC5接口和Uu接口中的另一个作为通信接口。
可选的,所述终端设备确定上述选择PC5接口或Uu接口的通信接口触发条件均满足时,终端设备可以在PC5接口和Uu接口随机选择一个,确定通过所选择的一个通信接口发送所述V2X业务消息;或者,根据终端设备的需求,优先选择其中一个接口,PC5接口或Uu接口,确定通过所优先选择的一个通信接口发送所述V2X业务消息。在此,对实际的随机选择方式或优先选择方式不做具体限定。
另一可选的实施例中,在上述步骤S302之后,本发明第一实施例还可以包括:终端设备确定所述V2X业务当前使用的通信接口是与所述确定的一个通信接口不同的通信接口,则停止通过当前使用的通信接口进行的V2X业务消息的发送,并使用所述确定的一个通信接口进行所述V2X业务消息的发送。
又一个可选的实施例中,终端设备根据确定的所述一个通信接口配置逻辑信道以及协议栈,并在所述逻辑信道上发送所述V2X业务消息。所述逻辑信道为一个或多个V2X专用逻辑信道。
可选的,所述V2X专用逻辑信道既可以被配置为对应于PC5接口的逻辑信道,也可以被配置为对应于Uu接口的逻辑信道。根据终端设备的选择和确定,所述V2X专用逻辑信道可以在对应于PC5接口和Uu接口的不同模式中进行转换。
可选的,每个V2X专用逻辑信道通过信道标签进行唯一标识。
例如,终端设备确定一个通信接口,为V2X业务消息的发送配置用于PC5接口或Uu接口的V2X专用逻辑信道,所述配置包含配置相应的分组数据汇聚协议(Packet Data Convergence Protocol,简称PDCP)实体、无线链路层控制(Radio Link Control,简称RLC)实体、逻辑信道标识(Logical Channel  Identity,简称LCID)等协议栈配置参数,并为上述配置的V2X专用逻辑信道关联一个V2X信道标签。可选的,若通信接口为PC5接口,则终端设备可以自行配置用于PC5接口的V2X专用逻辑信道,并进行上述协议栈参数的配置。可选的,若通信接口为Uu接口,则终端设备需要根据从网络侧设备下发的配置信息,配置用于Uu接口的V2X专用逻辑信道并进行上述协议栈参数的配置。
其中,所述信道标签可以为V2X业务信道标识,对于每一个配置的V2X专用逻辑信道,均关联一个唯一的V2X信道标识作为信道标签。
例如,所述信道标签可以为一个标量,如:取值范围0~10的十进制数。
具体的,所述信道标签的取值可以对应于一组V2X通信相关参数的集合,可以包括V2X业务消息的优先级、业务消息的类型、业务消息QoS等级标识QCI中等参数中的一个或者多个,也可以包含其他V2X业务相关的参数,此处不做具体限定。
本发明实施例中,用于发送V2X业务消息的逻辑信道均为V2X专用逻辑信道。所配置的V2X专用逻辑信道可以为一个或者多个,不同的V2X专用逻辑信道对应于一组独立的PDCP实体、RLC实体、LCID等协议栈参数配置,并且与唯一的信道标签相关联,对相应的V2X业务消息进行独立发送。根据确定的不同通信接口类型,灵活进行V2X专用逻辑信道和协议栈的配置和切换,实现了灵活的V2X业务处理。
再一可选的实施例中,所述通信接口配置信息可以承载在系统信息或者无线资源控制RRC专用消息中,所述系统信息可以以广播的方式发送,此处不做具体限定。
例如,所述系统信息可以为用户D2D直通的系统信息SystemInformationBlockType18,或者其他类型的系统信息。
又如,所述RRC专用消息可以为RRC连接重配置消息RRCConnectionReconfiguration,或者其他类型的RRC专用消息。
例如,承载通信接口配置信息的信息或消息中配置第一字段和第二字段。其中,第一字段用于标识仅支持PC5接口、仅支持Uu接口或者同时支持PC5接口和Uu接口;第二字段用于指示通信接口触发条件,具体指示内容根据第一字段的标识适应性配置。
具体的,第一字段标识仅支持PC5接口或仅支持Uu接口时,第二字段 为空,无需通信接口触发条件;第一字段标识同时支持PC5接口和Uu接口时,第二字段指示确定PC5接口的触发条件以及确定Uu接口的触发条件。
再一可选的实施例中,网络侧设备可以通过专用信令,向终端设备发送接口指示信息,为V2X业务消息的发送指定一个通信接口,例如PC5接口或者Uu接口。
例如,网络侧设备可以在任何时间、任何条件下,通过专用信令的方式对其覆盖范围内的车辆终端设备发送接口指示信息,为终端设备指定一个用于发送V2X业务消息的通信接口,所述通信接口可以为PC5接口或Uu接口中的任何一个。
可选的,网络侧设备可以获取网络无线环境的全局信息,因此可以根据当前网络的无线环境的全局信息,为终端设备确定并指示一个通信接口,用于终端设备进行V2X业务消息的发送。
例如,所述无线环境的全局信息可以为当前网络中车辆终端设备的数目、PC5接口对应的资源池的负载、终端设备与网络侧设备之间的蜂窝链路质量等。
可选的,所述专用信令可以为无线资源控制RRC专用消息。
再一个可选的实施例中,所述接口指示信息为第一通信接口的指示信息,第一通信接口为PC5接口或Uu接口;通信接口配置信息还包含确定第一通信接口的通信接口触发条件。所述终端设备确定通信接口触发条件满足时,确定第一通信接口作为通信接口。可选的,当终端设备确定通信接口触发条件不满足时,确定第二通信接口作为通信接口,所述第二通信接口为PC5接口和Uu接口中的另外一个接口。例如,通信接口配置信息包含PC5的指示信息和通信接口触发条件,当终端设备确定通信接口触发条件满足时,确定PC5接口作为通信接口。所述通信接口触发条件可以基于PC5接口及Uu接口的无线传输环境、和/或消息类型等因素进行选择性配置,具体可以根据实际需要进行选择和配置。
在本发明第一实施例中,终端设备可以根据需要在PC5接口和Uu接口之间为V2X消息发送选择一个通信接口。因此,同时需要实现一种通信接口的转换方法,使得终端设备在选择所述一个通信接口之后,停止当前V2X业务消息的发送,转换为通过所选择的所述一个通信接口进行所述V2X业务消息的发送。
下面通过本发明第二实施例说明另一种实现V2X业务消息发送的方法。
图4示出了本发明第二实施例定义的V2X业务消息的发送方法流程。
S401:终端设备检测当前用于发送V2X业务消息的第一通信接口;
S402:终端设备确定第二通信接口,所述第一或第二通信接口是从至少两个用于发送V2X的通信接口中确定的,所述第二通信接口不同于第一通信接口;
S403:终端设备停止通过第一通信接口进行V2X业务消息的发送,并使用第二通信接口进行所述V2X业务消息的发送。
本发明第二实施例定义了另一种V2X业务消息发送方法,使得车辆终端设备在V2X消息发送过程中,完成不同通信接口的转换,提高V2X业务消息传输的灵活性。
在一可选的实施例中,所述至少两个用于发送V2X的通信接口包括PC5接口和Uu接口;所述第一通信接口为PC5接口和Uu接口中的任意一个,所述第二通信接口为PC5接口和Uu接口中的另外一个。
另一可选的实施例中,终端设备获得与所述第一通信接口对应的专用逻辑信道,每个专用逻辑信道通过信道标签进行唯一标识;利用第二通信接口对应的专用逻辑信道以及协议栈的通信接口重配置信息,配置与所述第一通信接口对应的专用逻辑信道,所述专用逻辑信道为V2X专用逻辑信道。
可选的,所述第二通信接口为Uu接口时,终端设备向网络侧设备上报第一通信接口对应的一个或多个信道标签,所述信道标签用于标识与所述第一通信接口对应的专用逻辑信道;所述网络侧设备生成与第二通信接口对应的通信接口重配置信息,并发送给终端设备,使得终端设备根据所述通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道。
一方面,终端设备可以将已配置的、所有用于PC5接口的V2X专用逻辑信道相关联的信道标签信息,以列表的形式发送给网络侧设备。
又一方面,终端设备可以通过RRC专用消息,上报所述一个或多个信道标签。所述信道标签信息可以作为一个字段,添加到RRC专用消息SidelinkUEInformation中,也可以作为一条独立的RRC专用消息,由终端设备发送给网络侧设备。
再一方面,网络侧设备发送给终端设备的通信接口重配置信息,包括配 置参数以及相关联的信道标签,可以添加到RRC专用消息RRCConnectionReconfiguration中,发送到终端设备。
可选的,所述第二通信接口为PC5接口时,终端设备获取第一通信接口对应的一个或多个信道标签,并生成对应于第二通信接口的通信接口重配置信息;终端设备根据所述通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道。
可选的,终端设备接收通信接口配置信息,所述通信接口配置信息由网络侧设备发送,并且所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示用于发送V2X业务消息的至少一个通信接口;或者终端设备根据通信接口触发条件是否满足,确定第二通信接口。
例如,所述接口指示信息指示一个通信接口,所述通信接口为PC5接口或Uu接口,则终端设备确定指示的所述一个通信接口为第二通信接口。
又如,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,则所述通信接口配置信息还包括通信接口触发条件,所述终端设备根据通信接口触发条件是否满足,确定第二通信接口,所述第二通信接口为PC5接口和Uu接口中的一个。
再一可选的实施例中,网络侧设备可以通过专用信令,向终端设备发送接口指示信息,为V2X业务消息的发送指定一个通信接口,例如PC5接口或者Uu接口。
本发明第二实施例中所涉及的“专用逻辑信道”、“信道标签”、“通信接口触发条件”以及“专用信令”的含义和配置与本发明第一实施例中所涉及到的相同术语的含义和配置相同,具体参见第一实施例的记载,这里不再赘述。
需要说明的是,本发明实施例中在终端设备确定一通信接口以进行V2X业务消息的发送之前,可能并未使用任何一种V2X业务消息通信接口进行通信,也未建立用于对应于相应通信接口的V2X专用逻辑信道。在这种情况下,若确定的通信接口为Uu接口,则网络侧设备生成通信接口重配置信息并发送给终端设备,使得终端设备根据上述通信接口重配置信息进行用于Uu接口的V2X专用逻辑信道和相应协议栈的配置;若确定的通信接口为PC5接口,则终端设备可以直接配置用于PC5接口的V2X专用逻辑信道和相应协议栈的配置。这样,可以保证V2X业务消息的发送是通过用信道标 签唯一标识的V2X专用逻辑信道进行。
图5示出了本发明第一实施例中所涉及的终端设备的一种可能的结构示意图。
终端设备可以包括接收单元501、处理单元502和发射单元503,根据实际需要,还可以包含存储单元504,用于存储相关的数据信息。
所述接收单元501,用于接收来自网络侧设备的通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示发射单元503用于发送V2X业务消息的至少一个通信接口;
所述处理单元502,用于根据所述通信接口配置信息从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口;
所述发射单元503,用于通过确定的所述一个通信接口发送所述V2X业务消息。
在一个可选的实施例中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口,所述接口指示信息用于指示PC5接口和Uu接口中的至少一个接口。
可选的,所述接口指示信息为第一通信接口的指示信息,所述第一通信接口为PC5接口或Uu接口;则所述处理单元502确定第一通信接口,所述发射单元503通过所述第一通信接口发送所述V2X业务消息。
可选的,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包含确定PC5接口或Uu接口的通信接口触发条件;则所述处理单元502,用于确定通信接口触发条件满足时,确定PC5接口和Uu接口中的一个作为通信接口。
例如,所述处理单元502,还用于确定满足以下通信接口触发条件中的一个或多个时,确定PC5接口作为通信接口:
PC5接口对应的无线环境测量信息低于第一阈值;
Uu接口对应的无线环境测量信息低于第二阈值;
当前正在使用Uu接口的通信质量未满足一定要求;
待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
又如,所述处理器单元502,还用于确定满足以下通信接口触发条件中的一个或多个时,确定Uu接口作为通信接口:
PC5接口对应的无线环境测量信息高于第一阈值;
Uu接口对应的无线环境测量信息高于第二阈值;
当前正在使用PC5接口的通信质量未满足一定要求;
待传输的消息类型为分布式环境通知消息DENM或车载互联网数据Telematics消息。
另一个可选的实施例中,所述处理单元502还用于确定所述V2X业务消息当前使用的通信接口是与确定的所述一个通信接口不同的通信接口,停止所述发射单元503通过当前使用的通信接口进行的V2X业务消息的发送;所述发射单元503,用于使用确定的所述一个通信接口进行所述V2X业务消息的发送。
又一个可选的实施例中,所述处理单元502根据确定的所述一个通信接口配置逻辑信道以及协议栈;所述发射单元503在所述经配置的逻辑信道上发送所述V2X业务消息。
具体的,所述逻辑信道为一个或多个专用逻辑信道,其中每个专用逻辑信道通过信道标签进行唯一标识。所述信道标签指示业务消息的优先级、业务消息的类型、业务消息QoS等级标识QCI中的至少一个。
需要说明的是,上述终端设备进行的通信接口配置信息接收、通信接口配置以及V2X业务消息发送的具体实施方式可参见本发明第一实施例中方法的描述。本实施例中的终端设备与图3对应的本发明第一实施例的方法基于同一构思,其带来的技术效果与本发明第一实施例相同。本实施例中终端设备本所包含的接收单元501、处理单元502和发射单元503的具体功能以及其中的术语和实现细节与上述图3对应的实施例中的功能相对应。具体内容可参见本发明图3对应的方法实施例中的叙述,此处不再赘述。
本实施例中的终端设备可以根据需要在PC5接口和Uu接口之间为V2X消息发送选择合适的通信接口,提高V2X业务消息的传输性能。
图6示出了本发明第一实施例中所涉及的终端设备的另一种可能的结构示意图。
终端设备可以包括,接收器601、处理器602以及发射器603,根据实际需要,还可以包含存储器604,用于存储相关的数据信息。
所述接收器601,用于接收来自网络侧设备的通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示发射器用于发送V2X业务消息的至少一个通信接口;
所述处理器602,用于根据所述通信接口配置信息从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口;
所述发射器603,用于通过确定的所述一个通信接口发送所述V2X业务消息。
在一个可选的实施例中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口,所述接口指示信息用于指示PC5接口和Uu接口中的至少一个接口。
可选的,所述接口指示信息为第一通信接口的指示信息,所述第一通信接口为PC5接口或Uu接口;则所述处理器602确定第一通信接口,所述发射器603通过所述第一通信接口发送所述V2X业务消息。
可选的,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包含确定PC5接口或Uu接口的通信接口触发条件;则所述处理器602,用于确定通信接口触发条件满足时,确定PC5接口和Uu接口中的一个作为通信接口。
另一个可选的实施例中,所述处理器602还用于确定所述V2X业务消息当前使用的通信接口是与确定的所述一个通信接口不同的通信接口,停止所述发射器603通过当前使用的通信接口进行的V2X业务消息的发送;所述发射器,用于使用确定的所述一个通信接口进行所述V2X业务消息的发送。
又一个可选的实施例中,所述处理器602根据确定的所述一个通信接口配置逻辑信道以及协议栈;所述发射器603在所述经配置的逻辑信道上发送所述V2X业务消息。
需要说明的是,上述终端设备进行的通信接口配置信息接收、通信接口配置以及V2X业务消息发送的具体实施方式可参见本发明第一实施例中方法的描述。本实施例中的终端设备与图3对应的本发明第一实施例的方法基于同一构思,其带来的技术效果与本发明第一实施例相同。本实施例中终端设备本所包含的接收器601、处理器602和发射器603的具体功能以及其中的术语和实现细节与上述图3对应的实施例中的功能相对应。具体内容可参见本发明图3对应的方法实施例中的叙述,此处不再赘述。
图7示出了本发明第一实施例中所涉及的网络侧设备的一种可能的结构示意图。
网络侧设备包括处理单元701、发射单元702以及接收单元703,另外,还可以包含存储单元704。
所述处理单元701,用于生成通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示终端设备用于发送V2X业务消息的至少一个通信接口;
所述发射单元702,用于发送所述通信接口配置信息,所述通信接口配置信息用于所述终端设备从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口,所述确定的一个通信接口用于终端设备发送所述V2X业务消息。
一个可选的实施例中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口,所述接口指示信息用于指示PC5接口和Uu接口中的至少一个接口。
可选的,所述接口指示信息为第一通信接口的指示信息,所述第一通信接口为PC5接口或Uu接口;所述第一通信接口用于终端设备发送所述V2X业务消息。
可选的,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包含确定PC5接口或Uu接口的通信接口触发条件;所述通信接口触发条件用于所述终端设备确定PC5接口和Uu接口中的一个作为通信接口。
例如,所述通信接口触发条件包括以下条件中的一个或者多个:
PC5接口对应的无线环境测量信息低于第一阈值;
Uu接口对应的无线环境测量信息低于第二阈值;
当前正在使用Uu接口的通信质量未满足一定要求;
待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
又如,所述通信接口触发条件包括以下条件中的一个或者多个:
PC5接口对应的无线环境测量信息高于第一阈值;
Uu接口对应的无线环境测量信息高于第二阈值;
当前正在使用PC5接口的通信质量未满足一定要求;
待传输的消息类型为分布式环境通知消息DENM或车载互联网数据Telematics消息。
需要说明的是,上述网络侧设备进行的针对通信接口配置信息的处理的具体实施方式可参见本发明第一实施例中方法的描述。本实施例中的网络侧设备与图3对应的本发明第一实施例的网络侧设备侧对应的方法基于同一构思,其带来的技术效果与本发明第一实施例相同。本实施例中网络侧设备所包含的处理单元701、发射单元702以及接收单元703的具体功能以及其中的术语和实现细节与上述图3对应的实施例中的功能相对应。具体内容可参见本发明图3对应的方法实施例中的叙述,此处不再赘述。
图8示出了本发明第一实施例中所涉及的网络侧设备的另一种可能的结构示意图。
网络侧设备包括处理器801、发射器802以及接收器803,另外,还可以包含存储单元(图中并未示出)。
所述处理器801,用于生成通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示终端设备用于发送V2X业务消息的至少一个通信接口;
所述发射器802,用于发送所述通信接口配置信息,所述通信接口配置信息用于所述终端设备从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口,所述确定的一个通信接口用于终端设备发送所述V8032X业务消息。
一个可选的实施例中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口,所述接口指示信息用于指示PC5接口和Uu接口中的至少一个接口。
可选的,所述接口指示信息为第一通信接口的指示信息,所述第一通信接口为PC5接口或Uu接口;所述第一通信接口用于终端设备发送所述V2X业务消息。
可选的,所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包含确定PC5接口或Uu接口的通信接口触发条件;所述通信接口触发条件用于所述终端设备确定PC5接口和Uu接口中的一个作为通信接口。
例如,所述通信接口触发条件包括以下条件中的一个或者多个:
PC5接口对应的无线环境测量信息低于第一阈值;
Uu接口对应的无线环境测量信息低于第二阈值;
当前正在使用Uu接口的通信质量未满足一定要求;
待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
又如,所述通信接口触发条件包括以下条件中的一个或者多个:
PC5接口对应的无线环境测量信息高于第一阈值;
Uu接口对应的无线环境测量信息高于第二阈值;
当前正在使用PC5接口的通信质量未满足一定要求;
待传输的消息类型为分布式环境通知消息DENM或车载互联网数据Telematics消息。
需要说明的是,上述网络侧设备进行的针对通信接口配置信息的处理的具体实施方式可参见本发明第一实施例中方法的描述。本实施例中的网络侧设备与图3对应的本发明第一实施例的网络侧设备侧对应的方法基于同一构思,其带来的技术效果与本发明第一实施例相同。本实施例中网络侧设备所包含的处理器801、发射器802以及接收器803的具体功能以及其中的术语和实现细节与上述图3对应的实施例中的功能相对应。具体内容可参见本发明图3对应的方法实施例中的叙述,此处不再赘述。
为了实现本发明第二实施例的技术方案,本发明提供了一种可能的终端设备的结构。
终端设备可以包含发射单元、处理单元和接收单元,根据需要,还可以包含存储单元。
所述发射单元,用于通过通信接口发送V2X业务消息;
所述处理单元,用于检测当前用于发送V2X业务消息的第一通信接口,并确定第二通信接口,在第一通信接口不同于第二通信接口的情况下,通知所述发射单元停止通过第一通信接口进行V2X业务消息的发送,使用第二通信接口进行所述V2X业务消息的发送;
其中,所述第一或第二通信接口是从至少两个用于发送V2X业务消息的通信接口中确定。
一个可选的实施例中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口;所述第一通信接口为PC5接口和Uu接口中的任意一个,所述第二通信接口为PC5接口和Uu接口中的另外一个。
所述处理单元,用于获得与所述第一通信接口对应的专用逻辑信道,利用第二通信接口对应的专用逻辑信道以及协议栈的通信接口重配置信息,配置与所述第一通信接口对应的专用逻辑信道;其中每个所述专用逻辑信道通过信道标签进行唯一标识。
可选的,所述处理单元,还用于在确定所述第二通信接口为Uu接口时,上报第一通信接口对应的一个或多个信道标签,所述信道标签用于标识与所述第一通信接口对应的专用逻辑信道,并根据通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道;所述接收单元,用于接收与第二通信接口对应的所述通信接口重配置信息。
可选的,所述处理单元,还用于在确定所述第二通信接口为PC5接口时,获取第一通信接口对应的一个或多个信道标签,并生成对应于第二通信接口的通信接口重配置信息;并根据所述通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道。
另一个可选的实施例中,所述接收单元,用于接收通信接口配置信息,并且所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示发射器用于发送V2X业务消息的至少一个通信接口。
可选的,所述处理单元,还用于确定所述接口指示信息指示一个通信接口,所述通信接口为PC5接口或Uu接口,则确定所述第二通信接口为所述接口指示信息所指示的一个通信接口。
可选的,所述处理单元,还用于确定所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,则根据通信接口触发条件是否满足,确定第二通信接口。其中,所述第二通信接口为PC5接口和Uu接口中的一个,所述通信接口触发条件包含于通信接口配置信息中。
例如,所述处理单元确定所述通信接口触发条件满足以下条件中的一个或多个时,确定第二通信接口为PC5接口:
PC5接口对应的无线环境测量信息低于第一阈值;
Uu接口对应的无线环境测量信息低于第二阈值;
当前正在使用Uu接口的通信质量未满足一定要求;
待传输的消息类型为CAM或BSM;
终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
又如,所述处理单元确定所述通信接口触发条件满足以下条件中的一个或多个时,确定第二通信接口为Uu接口:
PC5接口对应的无线环境测量信息高于第一阈值;
Uu接口对应的无线环境测量信息高于第二阈值;
当前正在使用PC5接口的通信质量未满足一定要求;
待传输的消息类型为DENM或车辆互联网数据Telematics。
需要说明的是,上述终端设备进行的V2X业务消息发送过程中进行的通信接口转换的具体实施方式可参见本发明第二实施例中方法的描述。本实施例中的终端设备与图4对应的本发明第二实施例的方法基于同一构思,其带来的技术效果与本发明第二实施例相同。本实施例中终端设备所包含的接收单元、处理单元和发射单元的具体功能以及相关的术语和实现细节与上述图4对应的实施例中的功能相对应。具体内容可参见本发明图4对应的方法实施例中的叙述,此处不再赘述。
为了实现本发明第二实施例的技术方案,本发明提供了另一种可能的终端设备的结构。
终端设备可以包含发射器、处理器和接收器,根据需要,还可以包含存储器。
所述发射器,用于通过通信接口发送V2X业务消息;
所述处理器,用于检测当前用于发送V2X业务消息的第一通信接口,并确定第二通信接口,在第一通信接口不同于第二通信接口的情况下,通知所述发射器停止通过第一通信接口进行V2X业务消息的发送,使用第二通信接口进行所述V2X业务消息的发送;
其中,所述第一或第二通信接口是从至少两个用于发送V2X业务消息的通信接口中确定。
一个可选的实施例中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口;所述第一通信接口为PC5接口和Uu接口中的任 意一个,所述第二通信接口为PC5接口和Uu接口中的另外一个。
所述处理器用于获得与所述第一通信接口对应的专用逻辑信道,利用第二通信接口对应的专用逻辑信道以及协议栈的通信接口重配置信息,配置与所述第一通信接口对应的专用逻辑信道;其中每个所述专用逻辑信道通过信道标签进行唯一标识。
可选的,所述处理器,还用于在确定所述第二通信接口为Uu接口时,上报第一通信接口对应的一个或多个信道标签,所述信道标签用于标识与所述第一通信接口对应的专用逻辑信道,并根据通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道;所述接收器,用于接收与第二通信接口对应的所述通信接口重配置信息。
可选的,所述处理器,还用于在确定所述第二通信接口为PC5接口时,获取第一通信接口对应的一个或多个信道标签,并生成对应于第二通信接口的通信接口重配置信息;并根据所述通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道。
另一个可选的实施例中,所述接收器,用于接收通信接口配置信息,并且所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示发射器用于发送V2X业务消息的至少一个通信接口。
可选的,所述处理器,还用于确定所述接口指示信息指示一个通信接口,所述通信接口为PC5接口或Uu接口,则确定所述第二通信接口为所述接口指示信息所指示的一个通信接口。
可选的,所述处理器,还用于确定所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,则根据通信接口触发条件是否满足,确定第二通信接口;其中,所述第二通信接口为PC5接口和Uu接口中的一个,所述通信接口触发条件包含于通信接口配置信息中。
例如,所述处理器确定所述通信接口触发条件满足以下条件中的一个或多个时,确定第二通信接口为PC5接口:
PC5接口对应的无线环境测量信息低于第一阈值;
Uu接口对应的无线环境测量信息低于第二阈值;
当前正在使用Uu接口的通信质量未满足一定要求;
待传输的消息类型为CAM或BSM;
终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失 败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
又如,所述处理器确定所述通信接口触发条件满足以下条件中的一个或多个时,确定第二通信接口为Uu接口:
PC5接口对应的无线环境测量信息高于第一阈值;
Uu接口对应的无线环境测量信息高于第二阈值;
当前正在使用PC5接口的通信质量未满足一定要求;
待传输的消息类型为DENM或车辆互联网数据Telematics。
需要说明的是,上述终端设备进行的V2X业务消息发送过程中进行的通信接口转换的具体实施方式可参见本发明第二实施例中方法的描述。本实施例中终端设备所包含的接收器、处理器和发射器的具体功能以及相关的术语和实现细节与上述图4对应的实施例中的功能相对应。具体内容可参见本发明图4对应的方法实施例中的叙述,此处不再赘述。
应理解,说明书通篇中提到的“一个实施例”,“一实施例”,或“本发明实施例”意味着与实施例有关的特定特征、结构或特性包括在本发明的至少一个实施例中。因此,在整个说明书各处出现的“在一个实施例中”,“在一实施例中”,或“本发明实施例中”未必一定指相同的实施例。此外,这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
在本发明的各种实施例中,应理解,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本发明实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、计算机软件或者二者的结合来实现,为了清楚地说明硬件和软件的可互换性,在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以所述权利要求的保护范围为准。

Claims (57)

  1. 一种V2X业务消息发送方法,其特征在于,包括:
    终端设备接收来自网络侧设备的通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示用于发送V2X业务消息的至少一个通信接口;
    所述终端设备根据所述通信接口配置信息从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口;
    所述终端设备通过确定的所述一个通信接口发送所述V2X业务消息。
  2. 根据权利要求1所述的方法,其特征在于:
    其中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口,所述接口指示信息用于指示PC5接口和Uu接口中的至少一个接口。
  3. 根据权利要求2所述的方法,其特征在于:
    所述接口指示信息为第一通信接口的指示信息,所述第一通信接口为PC5接口或Uu接口;
    其中,所述终端设备根据所述通信接口配置信息从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口,具体包括:
    终端设备确定第一通信接口以发送所述V2X业务消息。
  4. 根据权利要求2所述的方法,其特征在于:
    所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包含确定PC5接口或Uu接口的通信接口触发条件;
    其中,所述终端设备根据所述通信接口配置信息从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口,具体包括:
    所述终端设备确定通信接口触发条件满足时,确定PC5接口和Uu接口中的一个作为通信接口。
  5. 根据权利要求4所述的方法,其特征在于:
    所述终端设备确定通信接口触发条件满足时,确定PC5接口和Uu接口中的一个作为通信接口,具体包括:
    所述终端设备确定以下条件中的一个或多个满足时,确定PC5接口作为通信接口:
    PC5接口对应的无线环境测量信息低于第一阈值;
    Uu接口对应的无线环境测量信息低于第二阈值;
    当前正在使用Uu接口的通信质量未满足一定要求;
    待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
    终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
  6. 根据权利要求4所述的方法,其特征在于:
    所述终端设备确定通信接口触发条件满足时,确定PC5接口和Uu接口中的一个作为通信接口,具体包括:
    所述终端设备确定以下条件中的一个或多个满足时,确定Uu接口作为通信接口:
    PC5接口对应的无线环境测量信息高于第一阈值;
    Uu接口对应的无线环境测量信息高于第二阈值;
    当前正在使用PC5接口的通信质量未满足一定要求;
    待传输的消息类型为分布式环境通知消息DENM或车载互联网数据Telematics消息。
  7. 根据权利要求4-6任一项所述的方法,其特征在于:
    所述终端设备确定通信接口触发条件满足时,确定PC5接口和Uu接口中的一个作为通信接口,具体包括:
    确定所述PC5接口的通信接口触发条件和确定所述Uu接口的通信接口触发条件是互斥的。
  8. 根据权利要求1-7任一项所述的方法,其特征在于:
    所述通信接口配置信息承载在系统信息或者无线资源控制RRC专用消息中。
  9. 根据权利要求1-8任一项所述的方法,其特征在于:
    终端设备根据所述通信接口配置信息从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口之后,还包括:
    终端设备确定所述V2X业务消息当前使用的通信接口是与确定的所述一个通信接口不同的通信接口,则停止通过当前使用的通信接口进行的V2X业务消息的发送,并使用所述确定的一个通信接口进行所述V2X业务消息的发送。
  10. 根据权利要求1-9任一项所述的方法,其特征在于:
    所述终端设备通过确定的所述一个通信接口发送所述V2X业务消息,包括:
    终端设备根据确定的所述一个通信接口配置逻辑信道以及协议栈,并在所述逻辑信道上发送所述V2X业务消息。
  11. 根据权利要求10所述的方法,其特征在于:
    所述逻辑信道为一个或多个专用逻辑信道,其中每个专用逻辑信道通过信道标签进行唯一标识。
  12. 根据权利要求11所述的方法,其特征在于:
    所述信道标签指示业务消息的优先级、业务消息的类型、业务消息QoS等级标识QCI中的至少一个。
  13. 一种V2X业务消息发送方法,其特征在于,包括:
    网络侧设备生成通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示终端设备用于发送V2X业务消息的至少一个通信接口;
    所述网络侧设备发送所述通信接口配置信息,所述通信接口配置信息用于所述终端设备从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口,所述确定的一个通信接口用于终端设备发送所述V2X业务消息。
  14. 根据权利要求13所述的方法,其特征在于:
    其中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口,所述接口指示信息用于指示PC5接口和Uu接口中的至少一个接口。
  15. 根据权利要求13所述的方法,其特征在于:
    所述接口指示信息为第一通信接口的指示信息,所述第一通信接口为PC5接口或Uu接口,所述第一通信接口用于终端设备发送所述V2X业务消息。
  16. 根据权利要求13所述的方法,其特征在于:
    所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包含确定PC5接口或Uu接口的通信接口触发条件;
    所述通信接口触发条件用于所述终端设备确定PC5接口和Uu接口中的一个作为通信接口。
  17. 根据权利要求16所述的方法,其特征在于:
    所述通信接口触发条件包括以下条件中的一个或者多个:
    PC5接口对应的无线环境测量信息低于第一阈值;
    Uu接口对应的无线环境测量信息低于第二阈值;
    当前正在使用Uu接口的通信质量未满足一定要求;
    待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
    终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
  18. 根据权利要求16所述的方法,其特征在于:
    所述通信接口触发条件包括以下条件中的一个或者多个:
    PC5接口对应的无线环境测量信息高于第一阈值;
    Uu接口对应的无线环境测量信息高于第二阈值;
    当前正在使用PC5接口的通信质量未满足一定要求;
    待传输的消息类型为分布式环境通知消息DENM或车载互联网数据Telematics消息。
  19. 根据权利要求13-18任一项所述的方法,其特征在于:
    所述网络侧设备通过系统信息或者无线资源控制RRC专用消息发送所述通信接口配置信息。
  20. 一种V2X业务消息发送方法,其特征在于,包括:
    终端设备检测当前用于发送V2X业务消息的第一通信接口;
    终端设备确定第二通信接口,所述第一或第二通信接口是从至少两个用于发送V2X业务消息的通信接口中确定的,所述第二通信接口不同于第一通信接口;
    终端设备停止通过第一通信接口进行V2X业务消息的发送,并使用第二通信接口进行所述V2X业务消息的发送。
  21. 根据权利要求20所述的方法,其特征在于:
    所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口;
    所述第一通信接口为PC5接口和Uu接口中的任意一个,所述第二通信接口为PC5接口和Uu接口中的另外一个。
  22. 根据权利要求21所述的方法,其特征在于:
    所述终端设备停止通过第一通信接口进行V2X业务消息的发送,并使用第二通信接口进行所述V2X业务消息的发送,包括:
    终端设备获得与所述第一通信接口对应的专用逻辑信道,每个专用逻辑信道通过信道标签进行唯一标识;
    利用第二通信接口对应的专用逻辑信道以及协议栈的通信接口重配置信息,配置与所述第一通信接口对应的专用逻辑信道。
  23. 根据权利要求22所述的方法,其特征在于:
    所述第二通信接口为Uu接口时,利用第二通信接口对应的专用逻辑信道 以及协议栈的通信接口重配置信息,配置与所述第一通信接口对应的专用逻辑信道,包括:
    终端设备上报第一通信接口对应的一个或多个信道标签,所述信道标签用于标识与所述第一通信接口对应的专用逻辑信道;
    终端设备接收与第二通信接口对应的通信接口重配置信息,并根据所述通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道。
  24. 根据权利要求22所述的方法,其特征在于:
    所述第二通信接口为PC5接口时,利用第二通信接口对应的专用逻辑信道以及协议栈的通信接口重配置信息,配置与所述第一通信接口对应的专用逻辑信道,包括:
    终端设备获取第一通信接口对应的一个或多个信道标签,并生成对应于第二通信接口的通信接口重配置信息;
    终端设备根据所述通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道。
  25. 根据权利要求22-24任一项所述的方法,其特征在于:
    所述信道标签指示业务消息的优先级、业务消息的类型、业务消息QoS等级标识QCI中的至少一个。
  26. 根据权利要求20-25任一项所述的方法,其特征在于:
    所述终端设备确定第二通信接口,包括:
    所述终端设备接收通信接口配置信息,所述通信接口配置信息由网络侧设备发送,并且所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示终端设备用于发送V2X业务消息的至少一个通信接口;
    所述终端设备根据通信接口配置信息确定所述第二通信接口。
  27. 根据权利要求26所述的方法,其特征在于:
    所述接口指示信息指示第二通信接口,所述第二通信接口为PC5接口或Uu接口,所述终端设备根据通信接口配置信息确定所述第二通信接口包括: 终端设备根据所述指示信息确定第二通信接口;或者,
    所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,则所述通信接口配置信息还包括通信接口触发条件,所述终端设备根据通信接口配置信息确定所述第二通信接口包括:所述终端设备根据通信接口触发条件是否满足,确定第二通信接口,所述第二通信接口为PC5接口和Uu接口中的一个。
  28. 根据权利要求27所述的方法,其特征在于:
    所述终端设备根据通信接口触发条件是否满足,确定第二通信接口,具体包括:
    终端设备确定以下条件中的一个或者多个满足时,确定第二通信接口为PC5接口:
    PC5接口对应的无线环境测量信息低于第一阈值;
    Uu接口对应的无线环境测量信息低于第二阈值;
    当前正在使用Uu接口的通信质量未满足一定要求;
    待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
    终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
  29. 根据权利要求27所述的方法,其特征在于:
    所述终端设备根据通信接口触发条件是否满足,确定第二通信接口,具体包括:
    终端设备确定以下条件中的一个或多个满足时,确定第二通信接口为Uu接口:
    PC5接口对应的无线环境测量信息高于第一阈值;
    Uu接口对应的无线环境测量信息高于第二阈值;
    当前正在使用PC5接口的通信质量未满足一定要求;
    待传输的消息类型为分布式环境通知消息DENM或车载互联网数据Telematics消息。
  30. 一种终端设备,其特征在于,包括:
    接收器,用于接收来自网络侧设备的通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示发射器用于发送V2X业务消息的至少一个通信接口;
    处理器,用于根据所述通信接口配置信息从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口;
    发射器,用于通过确定的所述一个通信接口发送所述V2X业务消息。
  31. 根据权利要求30所述的终端设备,其特征在于:
    其中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口,所述接口指示信息用于指示PC5接口和Uu接口中的至少一个接口。
  32. 根据权利要求31所述的终端设备,其特征在于:
    所述接口指示信息为第一通信接口的指示信息,所述第一通信接口为PC5接口或Uu接口;
    所述处理器确定第一通信接口;
    所述发射器通过所述第一通信接口发送所述V2X业务消息。
  33. 根据权利要求31所述的终端设备,其特征在于:
    所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包含确定PC5接口或Uu接口的通信接口触发条件;
    所述处理器,用于确定通信接口触发条件满足时,确定PC5接口和Uu接口中的一个作为通信接口。
  34. 根据权利要求33所述的终端设备,其特征在于:
    所述处理器,还用于确定以下通信接口触发条件中的一个或多个满足时,确定PC5接口作为通信接口:
    PC5接口对应的无线环境测量信息低于第一阈值;
    Uu接口对应的无线环境测量信息低于第二阈值;
    当前正在使用Uu接口的通信质量未满足一定要求;
    待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
    终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
  35. 根据权利要求33所述的终端设备,其特征在于:
    所述处理器,还用于确定以下通信接口触发条件中的一个或多个满足时,确定Uu接口作为通信接口:
    PC5接口对应的无线环境测量信息高于第一阈值;
    Uu接口对应的无线环境测量信息高于第二阈值;
    当前正在使用PC5接口的通信质量未满足一定要求;
    待传输的消息类型为分布式环境通知消息DENM或车载互联网数据Telematics消息。
  36. 根据权利要求30-35任一项所述的终端设备,其特征在于:
    所述通信接口配置信息承载在系统信息或者无线资源控制RRC专用消息中。
  37. 根据权利要求30所述的终端设备,其特征在于:
    所述处理器,还用于确定所述V2X业务消息当前使用的通信接口是与确定的所述一个通信接口不同的通信接口,停止所述发射器通过当前使用的通信接口进行的V2X业务消息的发送;
    所述发射器,用于使用确定的所述一个通信接口进行所述V2X业务消息的发送。
  38. 根据权利要求30-37任一项所述的终端设备,其特征在于:
    所述处理器根据确定的所述一个通信接口配置逻辑信道以及协议栈;
    所述发射器在所述经配置的逻辑信道上发送所述V2X业务消息。
  39. 根据权利要求38所述的终端设备,其特征在于:
    所述逻辑信道为一个或多个专用逻辑信道,其中每个专用逻辑信道通过信道标签进行唯一标识。
  40. 根据权利要求39所述的终端设备,其特征在于:
    所述信道标签指示业务消息的优先级、业务消息的类型、业务消息QoS等级标识QCI中的至少一个。
  41. 一种网络侧设备,其特征在于,包括:
    处理器,用于生成通信接口配置信息,所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示终端设备用于发送V2X业务消息的至少一个通信接口;
    发射器,用于发送所述通信接口配置信息,所述通信接口配置信息用于所述终端设备从至少两个用于发送V2X业务消息的通信接口中确定一个通信接口,所述确定的一个通信接口用于终端设备发送所述V2X业务消息。
  42. 根据权利要求41所述的网络侧设备,其特征在于:
    其中,所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口,所述接口指示信息用于指示PC5接口和Uu接口中的至少一个接口。
  43. 根据权利要求42所述的网络侧设备,其特征在于:
    所述接口指示信息为第一通信接口的指示信息,所述第一通信接口为PC5接口或Uu接口,所述第一通信接口用于终端设备发送所述V2X业务消息。
  44. 根据权利要求42所述的网络侧设备,其特征在于:
    所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包含确定PC5接口或Uu接口的通信接口触发条件;所述通信接口触发条件用于所述终端设备确定PC5接口和Uu接口中的一个作为通信接口。
  45. 根据权利要求44所述的网络侧设备,其特征在于:
    所述通信接口触发条件包括以下条件中的一个或者多个:
    PC5接口对应的无线环境测量信息低于第一阈值;
    Uu接口对应的无线环境测量信息低于第二阈值;
    当前正在使用Uu接口的通信质量未满足一定要求;
    待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
    终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
  46. 根据权利要求44所述的网络侧设备,其特征在于:
    所述通信接口触发条件包括以下条件中的一个或者多个:
    PC5接口对应的无线环境测量信息高于第一阈值;
    Uu接口对应的无线环境测量信息高于第二阈值;
    当前正在使用PC5接口的通信质量未满足一定要求;
    待传输的消息类型为分布式环境通知消息DENM或车载互联网数据Telematics消息。
  47. 根据权利要求41-46任一项所述的网络侧设备,其特征在于:
    所述发射器通过系统信息或者无线资源控制RRC专用消息发送所述通信接口配置信息。
  48. 一种终端设备,其特征在于,包括:
    发射器,用于通过通信接口发送V2X业务消息;
    处理器,用于检测当前用于发送V2X业务消息的第一通信接口,并确定第二通信接口,在第一通信接口不同于第二通信接口的情况下,通知所述发射器停止通过第一通信接口进行V2X业务消息的发送,使用第二通信接口进行所述V2X业务消息的发送;
    其中,所述第一或第二通信接口是从至少两个用于发送V2X业务消息的通信接口中确定。
  49. 根据权利要求48所述的终端设备,其特征在于:
    所述至少两个用于发送V2X业务消息的通信接口包括PC5接口和Uu接口;
    所述第一通信接口为PC5接口和Uu接口中的任意一个,所述第二通信接口为PC5接口和Uu接口中的另外一个。
  50. 根据权利要求49所述的终端设备,其特征在于:
    所述处理器,用于获得与所述第一通信接口对应的专用逻辑信道,利用第二通信接口对应的专用逻辑信道以及协议栈的通信接口重配置信息,配置与所述第一通信接口对应的专用逻辑信道;
    其中每个所述专用逻辑信道通过信道标签进行唯一标识。
  51. 根据权利要求50所述的终端设备,其特征在于,还包括接收器,其中:
    所述处理器,还用于在确定所述第二通信接口为Uu接口时,上报第一通信接口对应的一个或多个信道标签,所述信道标签用于标识与所述第一通信接口对应的专用逻辑信道,并根据通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道;
    所述接收器,用于接收与第二通信接口对应的所述通信接口重配置信息。
  52. 根据权利要求50所述的终端设备,其特征在于:
    所述处理器,还用于在确定所述第二通信接口为PC5接口时,获取第一通信接口对应的一个或多个信道标签,并生成对应于第二通信接口的通信接口重配置信息;并根据所述通信接口重配置信息,配置所述信道标签标识的专用逻辑信道,生成与所述第二通信接口对应的专用逻辑信道。
  53. 根据权利要求50-52任一项所述的终端设备,其特征在于:
    所述信道标签指示业务消息的优先级、业务消息的类型、业务消息QoS等级标识QCI中的至少一个。
  54. 根据权利要求48所述的终端设备,其特征在于,还包括接收器,其中:
    所述接收器,用于接收通信接口配置信息,并且所述通信接口配置信息包括接口指示信息,所述接口指示信息用于指示发射器用于发送V2X业务消息的至少一个通信接口。
  55. 根据权利要求54所述的终端设备,其特征在于:
    所述接口指示信息指示第二通信接口,所述第二通信接口为PC5接口或Uu接口;所述处理器,用于根据所述指示信息确定第二通信接口;或者,
    所述接口指示信息指示至少一个通信接口,所述至少一个通信接口包括PC5接口和Uu接口,所述通信接口配置信息还包括通信接口触发条件;所述处理器,用于根据通信接口触发条件是否满足,确定第二通信接口。
  56. 根据权利要求55所述的终端设备,其特征在于:
    所述处理器确定以下条件中的一个或多个满足时,确定第二通信接口为PC5接口:
    PC5接口对应的无线环境测量信息低于第一阈值;
    Uu接口对应的无线环境测量信息低于第二阈值;
    当前正在使用Uu接口的通信质量未满足一定要求;
    待传输的消息类型为协作感知消息CAM或基础安全类消息BSM;
    终端设备与网络侧设备之间的链路发生异常,所述异常包含无线链路失败RLF、切换失败HOF或者处于基站覆盖外OoC的至少一种。
  57. 根据权利要求55所述的终端设备,其特征在于:
    所述处理器确定以下条件中的一个或多个满足时,确定第二通信接口为Uu接口:
    PC5接口对应的无线环境测量信息高于第一阈值;
    Uu接口对应的无线环境测量信息高于第二阈值;
    当前正在使用PC5接口的通信质量未满足一定要求;
    待传输的消息类型为分布式环境通知消息DENM或车辆互联网数据Telematics消息。
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