WO2019096100A1 - 一种通信方法、装置及系统 - Google Patents

一种通信方法、装置及系统 Download PDF

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Publication number
WO2019096100A1
WO2019096100A1 PCT/CN2018/115090 CN2018115090W WO2019096100A1 WO 2019096100 A1 WO2019096100 A1 WO 2019096100A1 CN 2018115090 W CN2018115090 W CN 2018115090W WO 2019096100 A1 WO2019096100 A1 WO 2019096100A1
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WO
WIPO (PCT)
Prior art keywords
network device
access network
access
indication information
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/115090
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English (en)
French (fr)
Inventor
朱元萍
王瑞
戴明增
石小丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP18879068.7A priority Critical patent/EP3703409B1/en
Publication of WO2019096100A1 publication Critical patent/WO2019096100A1/zh
Priority to US16/875,709 priority patent/US11259336B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/045—Interfaces between hierarchically different network devices between access point and backbone network device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a communication method, apparatus, and system.
  • the terminal is discussing the long term evolution (LTE) access system and the 5G new radio (NR) access system for dual connectivity.
  • DCs are non-independent (NSA) networking scenarios, where the air interface corresponding to the LTE access standard is an Evolved Universal Terrestrial Radio Access (E-UTRA) air interface.
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • the E-UTRA and NR air ports obtain wireless resources for data transmission and obtain gains in transmission rates.
  • LTE and NR do dual connectivity have multiple alternative architectures, one of which can be seen in Figure 1, the core network is Evolved Packet Core (EPC), or a new generation core network (new generation core, The NGC)/5G core network (5G core, referred to as 5GC), the evolved base station (evolved node B, referred to as eNB) that provides the LTE access standard service as the primary base station, and the control plane and user plane can be established between the core network and the core network.
  • the next generation base station (next generation NodeB, gNB for short) in the 5G of the NR access system is used as the secondary base station, and only the user plane connection can be established between the core network and the core network.
  • the gNB cannot provide a control plane connection for the terminal. Therefore, the gNB adds indication information (such as "cell barred flag") to the broadcast information sent by the gNB to indicate gNB to the terminal.
  • indication information such as "cell barred flag"
  • the covered cell cannot be initially accessed, and the terminal does not camp in the cell covered by the gNB after reading the indication information.
  • the RN accesses the network as the terminal, the RN does not access the gNB-covered cell after identifying the indication information, so the RN cannot connect to the gNB and then the terminal.
  • Provide network access services which in turn limits the capacity of 5G networks.
  • the embodiment of the present application provides a communication method, device, and system, which are intended to improve the capacity of a 5G network.
  • the embodiment of the present application provides the following technical solutions:
  • the first aspect provides a communication system, including: a first access network device, a second access network device, a terminal, and an RN; wherein the terminal is connected to the first access network device by using the RN, and the terminal is further connected to the second The access network device is connected, the terminal receives signaling and/or data from the second access network device, and the terminal further receives data from the first access network device through the RN.
  • the terminal can be connected to the first access network device through the RN.
  • the first access network device is a base station with an access system of the NR system
  • the second access network device is a base station with an access system of the LTE system.
  • the second aspect provides a communication method, including: the first access network device sends the first indication information to the first RN, where the first indication information is used to indicate that the RN is allowed to access the cell covered by the first access network device;
  • the RN accessing the cell covered by the first access network device is used to provide a data transmission service for the terminal, and the terminal is configured to establish a connection between the RN of the cell covered by the first access network device and the first access network device.
  • the terminal is further configured to establish a connection with the second access network device, and receive signaling and/or data from the second access network device.
  • the first access network device may enable the RN to access the first access network device by sending the first indication information to the RN, and when the method is applied to the application scenario shown in FIG.
  • the RN is allowed to access the gNB, and the gNB can provide the data transmission service to the terminal through the RN, which can implement dual connectivity of the terminal, and can also deploy the RN in the 5G network, thereby improving the capacity of the 5G network.
  • the first indication information includes information that allows the RN to access the cell covered by the first access network device and the random access resource used by the RN to access the cell covered by the first access network device. at least one.
  • the NSA is a networking mode that is likely to be adopted in the initial stage of 5G network deployment. This possible design enables the RN to access the gNB of the NSA network, thereby increasing the capacity of the 5G network.
  • the first indication information is included in the broadcast message.
  • the first access network device can conveniently send the first indication information to the first RN by using a broadcast message.
  • the broadcast message further includes second indication information, where the second indication information is used to indicate that the terminal is not allowed to access the cell covered by the first access network device.
  • the first access network device is a base station with an access system of the NR system
  • the second access network device is a base station with an access system of the LTE system.
  • a third aspect provides a communication method, including: acquiring, by a first RN, first indication information, where the first indication information is used to indicate that the RN is allowed to access a cell covered by the first access network device; The information is used to initiate a random access to the first access network device, where the RN accessing the cell covered by the first access network device is used to provide a data transmission service for the terminal, and the terminal is used to cover the device by accessing the first access network device.
  • the RN of the cell establishes a connection with the first access network device, and the terminal is further configured to establish a connection with the second access network device, and receive signaling and/or data from the second access network device.
  • the RN can access the first access network device by using the first indication information.
  • the RN can access the gNB, and the gNB can
  • the terminal provides a data transmission service, which can implement dual connectivity of the terminal, and can also implement RN in the 5G network, thereby increasing the capacity of the 5G network.
  • the first indication information includes information that allows the RN to access the cell covered by the first access network device and the random access resource used by the RN to access the cell covered by the first access network device. at least one.
  • the first indication information includes at least a random access resource used by the RN to access the cell covered by the first access network device, and the first RN initiates the first access network device according to the first indication information.
  • the random access includes: the first RN initiates random access to the first access network device by using the random access resource indicated by the first indication information.
  • the first RN obtains the first indication information, where the first RN receives the broadcast message from the first access network device, where the broadcast message includes the first indication information, and the first RN obtains the first message according to the broadcast message.
  • An indication information; or, the first RN establishes a connection with the second access network device, and acquires the first indication information from the second access network device.
  • the first RN can conveniently receive the first indication information.
  • the broadcast message further includes second indication information, where the second indication information is used to indicate that the terminal is not allowed to access the cell covered by the first access network device.
  • the first access network device is a base station with an access system of the NR system
  • the second access network device is a base station with an access system of the LTE system.
  • a communication device having the function of implementing any of the methods provided by the second aspect or the third aspect.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the device can exist in the form of a chip product.
  • a communication device comprising: a memory and a processor; the memory is configured to store a computer execution instruction, and the processor executes a computer-executed instruction stored in the memory to enable the device to implement any of the second aspect or the third aspect a way.
  • the device can exist in the form of a chip product.
  • a computer readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform any of the methods provided by the second aspect or the third aspect.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform any of the methods provided by the second aspect or the third aspect.
  • FIG. 1 is a schematic structural diagram of a network architecture in the prior art
  • FIG. 2 is a schematic structural diagram of a network architecture according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of another network architecture according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of a terminal connected to a base station by using an RN according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of another network architecture according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of another network architecture according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 7 is a flowchart of a communication method according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a device according to an embodiment of the present application.
  • the RN in the embodiment of the present application may be replaced by an integrated access and backhaul (IAB) node.
  • IAB integrated access and backhaul
  • the embodiment of the present application provides a communication system, as shown in FIG. 2, including:
  • a first access network device a second access network device, a terminal, and an RN
  • the terminal is connected to the first access network device by using the RN, the terminal is further connected to the second access network device, and the terminal is connected to the second access network
  • the device receives signaling and/or data, and the terminal also receives data from the first access network device through the RN.
  • the terminal may also send data to the first access network device and send signaling and/or data to the second access network device.
  • the terminal may access the network by using the first access network device and the second access network device, where the first access network device may provide a user plane connection for the terminal, and the second access network device may provide the terminal with the terminal.
  • the user plane and the control plane are connected, and the first access network device and the second access network device can simultaneously perform network services for the terminal.
  • the first access network device is a secondary base station
  • the second access network device is a primary base station.
  • the first access network device is a base station with an access system of the NR system
  • the second access network device is a base station with an access system of the LTE system.
  • a base station whose access system is an NR system may be a gNB; a base station whose access system is an LTE system may be an eNB, and includes, for example, an LTE eNB connected to an EPC, an NG eNB connected to a 5GC/NGC, and the like; the core network may For EPC/NGC/5GC.
  • the terminal can communicate with the eNB through the Uu interface, and the eNB and the gNB can communicate with each other through the X2/Xn interface, and the gNB and the eNB and the core network can communicate with each other through the S1/NG interface.
  • the terminal simultaneously obtains radio resources from the LTE and NR air ports for data transmission, and obtains a gain of the transmission rate.
  • the gNB that provides the backhaul service for the IAB node may be referred to as an "IAB donor gNB.”
  • the RN is connected to the gNB through a backhaul link (BL), and some or all functions of the core network element serving the RN may also be built in the gNB, and the terminal is accessed through An access link (AL) is connected to the RN and then accesses the network.
  • An NR-based backhaul link can be established between the RN and the gNB, and an access link based on LTE, NR, or wireless local area networks (WLAN) can be established between the terminal and the RN.
  • RN When RN is deployed in a hot spot, if fiber transmission is used, there are problems such as high cost and difficulty in construction. Therefore, data transmission between the terminal and the RN, and between the RN and the gNB can be performed wirelessly, thereby avoiding the problems of high cost and difficulty in construction due to deployment of the optical fiber between the RN and the gNB.
  • IAB integrated access and backhaul
  • the terminal may also be connected to the second access network device by using the RN.
  • the RN forms a dual connection with the first access network device and the second access network device.
  • the terminal receives data from the first access network device through the RN and receives signaling and/or data from the second access network device through the RN.
  • the terminal may also send data to the first access network device through the RN, and send signaling and/or data to the second access network device through the RN.
  • the terminal may also be connected to the second access network device.
  • the RN forms a dual connection with the first access network device and the second access network device.
  • the terminal forms a dual connection with the RN and the second access network device.
  • the terminal receives data from the first access network device through the RN and receives signaling and/or data directly from the second access network device through the RN.
  • the terminal may also send data to the first access network device through the RN, and send signaling and/or data directly to the second access network device through the RN.
  • the interface that interacts between the network elements shown in FIG. 3 and FIG. 5 in the embodiment of the present application may be the interface shown in the figure, and may also be another interface that enables interaction between network elements. This embodiment of the present application does not specifically limit this.
  • the terminal can be connected to the first access network device through the RN.
  • the RN When the communication system is applied in the 5G network, the RN is deployed, thereby increasing the capacity of the 5G network and expanding the coverage.
  • Network device 60 may be an access network device or RN.
  • the processor 601 can be a general purpose CPU, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application.
  • ASIC application-specific integrated circuit
  • Communication bus 602 can include a path for communicating information between the components described above.
  • the communication interface 604 can be any device such as a transceiver for communicating with other devices or communication networks, such as an Ethernet, a radio access network (RAN), a WLAN, and the like.
  • a transceiver for communicating with other devices or communication networks, such as an Ethernet, a radio access network (RAN), a WLAN, and the like.
  • RAN radio access network
  • WLAN wireless local area network
  • the memory 603 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or a device that can store information and instructions.
  • ROM read-only memory
  • RAM random access memory
  • Other types of dynamic storage devices may also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical discs.
  • EEPROM electrically erasable programmable read-only memory
  • CD-ROM compact disc read-only memory
  • Storage optical storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures And any other medium that can be accessed by a computer, but is not limited thereto.
  • the memory can exist independently and be connected to the processor via a bus.
  • the memory can also be integrated with the processor.
  • the memory 603 is used to store application code for executing the solution of the present application, and is controlled by the processor 601 for execution.
  • the processor 601 is configured to execute the application code stored in the memory 603, thereby implementing the method provided in the embodiments of the present application.
  • the processor 601 may include one or more CPUs, such as CPU0 and CPU1 in FIG.
  • network device 60 may include multiple processors, such as processor 601 and processor 608 in FIG. Each of these processors can be a single-CPU processor or a multi-core processor.
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.
  • network device 60 may also include an output device 605 and an input device 606.
  • the embodiment of the present application further provides a communication method, as shown in FIG. 7, the method includes:
  • the first RN obtains the first indication information, where the first indication information is used to indicate that the RN is allowed to access the cell covered by the first access network device.
  • the first indication information includes at least one of information that allows the RN to access the cell covered by the first access network device and a random access resource used by the RN to access the cell covered by the first access network device.
  • the NSA is a networking mode that is likely to be adopted in the initial stage of 5G network deployment. This optional method enables the RN to access the gNB of the NSA network, thereby increasing the capacity of the 5G network.
  • the first indication information includes information that allows the RN to access the cell covered by the first access network device
  • the first indication information directly indicates that the first access network device allows the RN to access the cell covered by the first access network device
  • the first indication information indirectly indicates that the first access network device allows the RN to access the first access network device for coverage. Community.
  • the first indication information may be used to indicate the access of the RN to the first access network.
  • the first indication information may include information that does not include the cell that allows the RN to access the coverage of the first access network device.
  • the random access resource used by the RN to access the cell covered by the first access network device may be configured to the RN in a static or semi-static manner.
  • the first indication information may include only the RN access. Information about a cell covered by an access network device.
  • step 701 can be implemented in any one of the following manners:
  • the first access network device sends the first indication information to the first RN, and the first RN receives the first indication information from the first access network device.
  • the first indication information may be included in the broadcast message.
  • the first RN sends a broadcast message to the first RN, and the first RN receives the broadcast message from the first access network device, where the broadcast message includes the first indication information, and the first RN obtains the first message according to the broadcast message.
  • the first access network device can conveniently send the first indication information to the first RN by using a broadcast message.
  • the broadcast message may further include second indication information, where the second indication information is used to indicate that the terminal is not allowed to access the cell covered by the first access network device.
  • the first RN ignores the second indication information therein, and performs a corresponding operation according to the first indication information.
  • the optional method is compatible with the existing protocol version, and prevents the terminal from camping on the cell covered by the first access network device.
  • Manner 2 The first RN establishes a connection with the second access network device, and obtains the first indication information from the second access network device.
  • the first RN when the first RN initiates the random access to the second access network device, the first RN may indicate the identity of the RN to the second access network device. Specifically, the first RN may send the RN to the second access network device. After the RN is received, the second access network device may send the cell information of the gNB that can serve the first RN and the random access resource, that is, the first indication information, to the first RN.
  • the first RN may be disconnected from the second access network device, or may not be disconnected from the second access network device, if not disconnected from the second access network device, After the first RN establishes a connection with the first access network device, the first access network device and the second access network device form a dual connection to provide service for the first RN. At this time, the terminal may also be connected to the second access network device through the RN. For details, refer to FIG. 5.
  • the terminal receives data from the first access network device through the RN and receives signaling and/or data from the second access network device through the RN.
  • the terminal also sends data to the first access network device through the RN, and sends signaling and/or data to the second access network device through the RN.
  • the first RN initiates random access to the first access network device according to the first indication information.
  • the RN accessing the cell covered by the first access network device is used to provide a data transmission service for the terminal, and the terminal is configured to establish a connection between the RN of the cell covered by the first access network device and the first access network device.
  • the terminal is further configured to establish a connection with the second access network device, and receive signaling and/or data from the second access network device.
  • the terminal also transmits data to the first access network device, and transmits signaling and/or data to the second access network device.
  • the terminal may also be connected to the second access network device through the RN.
  • the first indication information includes at least a random access resource that is used by the RN to access the cell that is covered by the first access network device, where the step 702 may include: the first RN uses the random indication indicated by the first indication information.
  • the access resource initiates random access to the first access network device.
  • the first access network device is a base station with an access system of the NR system
  • the second access network device is a base station with an access system of the LTE system.
  • the description of this part can be referred to above and will not be repeated here.
  • the network architecture can be seen in FIG. 2, FIG. 3 or FIG.
  • the RN is connected to the gNB through a backhaul link, and some or all functions of the core network element serving the RN may also be built in the gNB.
  • the terminal connects to the RN through an access link and then accesses the network.
  • An NR-based backhaul link can be established between the RN and the gNB, and an access link based on the LTE, NR, or WLAN can be established between the terminal and the RN.
  • the first access network device may send the first indication information to the RN, so that the RN accesses the first access network device, and the method is applied to the application scenario shown in FIG.
  • the RN can access the gNB, and the gNB can provide the data transmission service to the terminal through the RN, which can implement the dual connection of the terminal, and can also deploy the RN in the 5G network, thereby improving the capacity of the 5G network.
  • the foregoing provides an introduction to the solution provided by the embodiments of the present application from the perspective of a method.
  • the foregoing access network device and/or RN includes corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the embodiments of the present application may perform the division of the function modules on the access network device and/or the RN according to the foregoing method.
  • each function module may be divided according to each function, or two or more functions may be integrated into one process.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • FIG. 8 shows a possible structural diagram of a device 80 involved in the above embodiment.
  • the device 80 includes a processing unit 801 and a communication unit 802, and may further include a storage unit 803.
  • the apparatus 80 can be a first access network device or a first RN.
  • the processing unit 801 is configured to control and control the action of the first access network device. Specifically, the processing unit 801 is configured to support the first access network device to perform the embodiment of the present application. The actions performed by the first access network device described in the description.
  • the communication unit 802 is configured to support the first access network device to communicate with other network entities, for example, with the first RN.
  • the storage unit 803 is configured to store program codes and data of the first access network device.
  • the processing unit 801 is configured to perform control management on the action of the first RN.
  • the processing unit 801 is configured to support the first RN to perform the steps in FIG. 7 , and/or in the embodiment of the present application. The actions performed by the first RN in the other processes described.
  • the communication unit 802 is configured to support the first RN to communicate with other network entities, for example, with the first access network device.
  • the storage unit 803 is configured to store program codes and data of the first RN.
  • the processing unit 801 can be a processor or a controller, and the communication unit 802 can be a communication interface, a transceiver, a transceiver circuit, etc., wherein the communication interface is a collective name and can include one or more interfaces.
  • the storage unit 803 can be a memory.
  • the processing unit 801 is a processor
  • the communication unit 802 is a communication interface
  • the storage unit 803 is a memory
  • the device 80 involved in the embodiment of the present application may be the network device 60 shown in FIG. 6.
  • the processor 601 controls and manages the action of the first access network device when the network device 60 is the first access network device. Specifically, the processor 601 is configured to support the first access network device to perform the implementation of the present application. The actions performed by the first access network device as described in the example.
  • the communication interface 604 is configured to support the first access network device to communicate with other network entities, for example, with the first RN.
  • the memory 603 is used to store program codes and data of the first access network device.
  • the processor 601 controls and manages the action of the first RN.
  • the processor 601 is configured to support the first RN to perform the steps in FIG. 7, and/or in the embodiment of the present application. The actions performed by the first RN in other processes described.
  • the communication interface 604 is configured to support the first RN to communicate with other network entities, for example, with the first access network device.
  • the memory 603 is used to store program codes and data of the first RN.
  • the embodiment of the present application also provides a computer readable storage medium, including instructions, when executed on a computer, causing a computer to execute the above method.
  • the embodiment of the present application also provides a computer program product comprising instructions that, when run on a computer, cause the computer to perform the above method.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • a software program it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device that includes one or more servers, data centers, etc. that can be integrated with the media.
  • the usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD)) or the like.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a DVD
  • a semiconductor medium e.g., a solid state disk (SSD)

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Abstract

本申请提供了一种通信方法、装置及系统，旨在提升5G网络的容量。该系统包括：第一接入网设备、第二接入网设备、终端和RN；其中，终端通过RN与第一接入网设备连接，终端还与第二接入网设备连接，终端从第二接入网设备接收信令和/或数据，终端还通过RN从第一接入网设备接收数据。本申请涉及通信技术领域。

Description

一种通信方法、装置及系统
本申请要求于2017年11月17日提交中国专利局、申请号为201711145853.4、申请名称为“一种通信方法、装置及系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种通信方法、装置及系统。
背景技术
随着虚拟现实(virtual reality，简称VR)、增强现实(augmented reality，简称AR)以及物联网等技术的发展，未来网络中将会有越来越多的终端，网络数据的使用量也会不断攀升，为了配合越来越多的终端以及市场极速增长的网络数据使用量，目前对第五代(fifth-generation，简称5G)无线通信系统的容量提出了更高的要求。在热点区域，为满足5G超高容量需求，利用高频小站组网愈发流行。高频载波传播特性较差，受遮挡衰减严重，覆盖范围不广，故而在热点区域需要大量密集部署小站。这些小站可以为中继节点(relay node，简称RN)。
目前，在5G网络标准化的过程中，正在讨论终端在长期演进(long term evolution，简称LTE)的接入制式和5G新空口(new radio，简称NR)接入制式做双连接(dual connectivity，简称DC)的非独立(non standalone，简称NSA)组网场景，其中LTE接入制式对应的空口为演进通用陆地无线接入(Evolved Universal Terrestrial Radio Access，简称E-UTRA)空口，以实现终端同时从E-UTRA和NR空口获得无线资源进行数据传输，获得传输速率的增益。其中，LTE与NR做双连接有多种备选架构，其中一种可参见图1，核心网为演进分组核心网(Evolved Packet Core，简称EPC)，或者是新一代核心网(new generation core，简称NGC)/5G核心网(5G core，简称5GC)，提供LTE接入制式服务的演进型基站(evolved nodeB，简称eNB)作为主基站，与核心网之间可以为终端建立控制面和用户面连接；提供NR接入制式的5G中的下一代基站(next generation NodeB，简称gNB)作为辅基站，与核心网之间只能为终端建立用户面连接。
在如图1所示的NSA组网场景中，gNB无法为终端提供控制面连接，故gNB在其发送的广播信息中，增加指示信息(例如“cell barred flag”)，用于向终端表明gNB覆盖的小区不能做初始接入，终端读取该指示信息后不会驻留在gNB覆盖的小区中。该情况下，当RN初始接入网络时以终端的身份接入，则RN在识别所述指示信息后，也不会接入到gNB覆盖的小区中，因此RN也无法连接到gNB继而为终端提供网络接入服务，进而限制5G网络容量的提升。
发明内容
本申请实施例提供了一种通信方法、装置及系统，旨在提升5G网络的容量。
为达到上述目的，本申请实施例提供如下技术方案：
第一方面，提供了一种通信系统，包括：第一接入网设备、第二接入网设备、终 端和RN；其中，终端通过RN与第一接入网设备连接，终端还与第二接入网设备连接，终端从第二接入网设备接收信令和/或数据，终端还通过RN从第一接入网设备接收数据。第一方面提供的通信系统，终端可以通过RN与第一接入网设备连接，在5G网络中应用该通信系统时，由于部署了RN，从而可以提高5G网络的容量，扩大覆盖范围。
在一种可能的设计中，第一接入网设备为接入制式为NR制式的基站，第二接入网设备为接入制式为LTE制式的基站。
第二方面，提供了一种通信方法，包括：第一接入网设备向第一RN发送第一指示信息，第一指示信息用于指示允许RN接入第一接入网设备覆盖的小区；其中，接入第一接入网设备覆盖的小区的RN用于为终端提供数据传输服务，终端用于通过接入第一接入网设备覆盖的小区的RN与第一接入网设备建立连接，终端还用于与第二接入网设备建立连接，从第二接入网设备接收信令和/或数据。第二方面提供的方法，第一接入网设备可以通过向RN发送第一指示信息从而使得RN接入第一接入网设备，将该方法应用于图1所示的应用场景中时，能够使得RN接入gNB，gNB可以通过RN向终端提供数据传输服务，既可以实现终端的双连接，也可以使得5G网络中可以部署RN，从而提高5G网络的容量。
在一种可能的设计中，第一指示信息包括允许RN接入第一接入网设备覆盖的小区的信息和RN使用的接入第一接入网设备覆盖的小区的随机接入资源中的至少一个。NSA是5G网络部署初期很有可能采用的组网方式，该种可能的设计，使得RN能接入NSA组网的gNB，从而提高5G网络容量。
在一种可能的设计中，第一指示信息包含在广播消息中。该种可能的设计，第一接入网设备通过广播消息可以便利的向第一RN发送第一指示信息。
在一种可能的设计中，广播消息中还包括第二指示信息，第二指示信息用于指示不允许终端接入第一接入网设备覆盖的小区。该种可能的设计，能够兼容现有协议版本，避免终端驻留在第一接入网设备覆盖的小区。
在一种可能的设计中，第一接入网设备为接入制式为NR制式的基站，第二接入网设备为接入制式为LTE制式的基站。
第三方面，提供了一种通信方法，包括：第一RN获取第一指示信息，第一指示信息用于指示允许RN接入第一接入网设备覆盖的小区；第一RN根据第一指示信息向第一接入网设备发起随机接入；其中，接入第一接入网设备覆盖的小区的RN用于为终端提供数据传输服务，终端用于通过接入第一接入网设备覆盖的小区的RN与第一接入网设备建立连接，终端还用于与第二接入网设备建立连接，从第二接入网设备接收信令和/或数据。第三方面提供的方法，RN可以通过第一指示信息接入第一接入网设备，将该方法应用于图1所示的应用场景中时，能够使得RN接入gNB，gNB可以通过RN向终端提供数据传输服务，既可以实现终端的双连接，也可以使得5G网络中可以部署RN，从而提高5G网络的容量。
在一种可能的设计中，第一指示信息包括允许RN接入第一接入网设备覆盖的小区的信息和RN使用的接入第一接入网设备覆盖的小区的随机接入资源中的至少一个。
在一种可能的设计中，第一指示信息至少包括RN使用的接入第一接入网设备覆盖的小区的随机接入资源，第一RN根据第一指示信息向第一接入网设备发起随机接 入，包括：第一RN使用第一指示信息指示的随机接入资源向第一接入网设备发起随机接入。
在一种可能的设计中，第一RN获取第一指示信息，包括：第一RN从第一接入网设备接收广播消息，广播消息中包括第一指示信息，第一RN根据广播消息获取第一指示信息；或者，第一RN与第二接入网设备建立连接，并从第二接入网设备获取第一指示信息。该种可能的设计，第一RN可以便利的接收第一指示信息。
在一种可能的设计中，广播消息中还包括第二指示信息，第二指示信息用于指示不允许终端接入第一接入网设备覆盖的小区。该种可能的设计，能够兼容现有协议版本，避免终端驻留在第一接入网设备覆盖的小区。
在一种可能的设计中，第一接入网设备为接入制式为NR制式的基站，第二接入网设备为接入制式为LTE制式的基站。
第四方面，提供了一种通信装置，该装置具有实现第二方面或第三方面提供的任意一种方法的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元。该装置可以以芯片的产品形态存在。
第五方面，提供了一种通信装置，包括：存储器和处理器；存储器用于存储计算机执行指令，处理器执行存储器存储的计算机执行指令，以使装置实现第二方面或第三方面提供的任意一种方法。该装置可以以芯片的产品形态存在。
第六方面，提供了一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行第二方面或第三方面提供的任意一种方法。
第七方面，提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行第二方面或第三方面提供的任意一种方法。
第四方面至第七方面中任一种设计方式所带来的技术效果可参见第二方面或第三方面中不同设计方式所带来的技术效果，此处不再赘述。
附图说明
图1为现有技术中的一种网络架构的组成示意图；
图2为本申请实施例提供的一种网络架构的组成示意图；
图3为本申请实施例提供的又一种网络架构的组成示意图；
图4为本申请实施例提供的一种终端通过RN与基站连接的示意图；
图5为本申请实施例提供的又一种网络架构的组成示意图；
图5a为本申请实施例提供的又一种网络架构的组成示意图；
图6为本申请实施例提供的一种网络设备的组成示意图；
图7为本申请实施例提供的一种通信方法的流程图；
图8为本申请实施例提供的一种装置的组成示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。其中，在本申请的描述中，除非另有说明，“/”表示或的意思，例如，A/B可以表示A或B；本文中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。 另外，在本申请的描述中，“多个”是指两个或多于两个。
需要说明的是，本申请实施例中的RN均可以替换为接入回传一体化(integrated access and backhaul，简称IAB)节点(node)。
本申请实施例提供了一种通信系统，如图2所示，包括：
第一接入网设备、第二接入网设备、终端和RN；其中，终端通过RN与第一接入网设备连接，终端还与第二接入网设备连接，终端从第二接入网设备接收信令和/或数据，终端还通过RN从第一接入网设备接收数据。另外，终端还可以向第一接入网设备发送数据，向第二接入网设备发送信令和/或数据。
参见图2，终端可以通过第一接入网设备和第二接入网设备接入网络，其中，第一接入网设备可以为终端提供用户面连接，第二接入网设备可以为终端提供用户面和控制面连接，第一接入网设备和第二接入网设备可以同时为终端进行网络服务。此时，第一接入网设备为辅基站，第二接入网设备为主基站。
可选的，如图3所示，第一接入网设备为接入制式为NR制式的基站，第二接入网设备为接入制式为LTE制式的基站。
参见图3，接入制式为NR制式的基站可以为gNB；接入制式为LTE制式的基站可以为eNB，包括例如连接到EPC的LTE eNB、连到5GC/NGC的NG eNB等；核心网可以为EPC/NGC/5GC。终端可以通过Uu接口与eNB通信，eNB与gNB之间可以通过X2/Xn接口互相通信，gNB和eNB与核心网之间可以通过S1/NG接口互相通信。终端同时从LTE和NR空口获得无线资源进行数据传输，获得传输速率的增益。需要说明的是，在NSA组网场景下，当RN替换为IAB节点时，为IAB节点提供回传服务的gNB，可以称为“IAB donor gNB”。
示例性的，参见图4，RN通过回传链路(backhaul link，简称BL)连接到gNB，为RN服务的核心网网元的部分或全部功能，也可以内置于gNB处，终端通过接入链路(access link，简称AL)连接到RN继而接入网络。其中，RN与gNB之间可以建立基于NR制式的回传链路，终端与RN之间可以建立基于LTE、NR或无线局域网(wireless local area networks，简称WLAN)等制式的接入链路。
由于在热点区域部署RN时，若采用光纤传输，会存在成本高以及施工难度大等问题。因此，终端和RN之间、以及RN和gNB之间均可以通过无线方式进行数据传输，从而避免在RN和gNB之间部署光纤所导致的成本高以及施工难度大的问题。进而实现5G网络中的接入回传一体化(integrated access and backhaul，简称IAB)。
可选的，参见图5，终端还可以通过RN与第二接入网设备连接。此时，RN与第一接入网设备和第二接入网设备组成双连接。终端通过RN从第一接入网设备接收数据，并通过RN从第二接入网设备接收信令和/或数据。终端还可以通过RN向第一接入网设备发送数据，并通过RN向第二接入网设备发送信令和/或数据。
可选的，参见图5a，在图5所示的各个网元的连接关系的基础上，终端还可以与第二接入网设备连接。此时，RN与第一接入网设备和第二接入网设备组成双连接。终端与RN和第二接入网设备组成双连接。终端通过RN从第一接入网设备接收数据，并通过RN或直接从第二接入网设备接收信令和/或数据。终端还可以通过RN向第一接入网设备发送数据，并通过RN或直接向第二接入网设备发送信令和/或数据。
需要说明的是，本申请实施例中图3和图5所示的网元之间进行交互的接口可以为图中所示的接口，还可以为其他能够使得网元之间进行交互的接口，本申请实施例对此不做具体限定。
本申请实施例提供的通信系统，终端可以通过RN与第一接入网设备连接，在5G网络中应用该通信系统时，由于部署了RN，从而可以提高5G网络的容量，扩大覆盖范围。
如图6所示，本申请实施例提供了一种网络设备60的硬件结构示意图，包括至少一个处理器601，通信总线602，存储器603以及至少一个通信接口604。网络设备60可以为接入网设备或RN。
处理器601可以是一个通用CPU，微处理器，特定应用集成电路(application-specific integrated circuit，简称ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。
通信总线602可包括一通路，在上述组件之间传送信息。
通信接口604，可以为任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，无线接入网(radio access network，简称RAN)，WLAN等。
存储器603可以是只读存储器(read-only memory，简称ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，简称RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，简称EEPROM)、只读光盘(compact disc read-only memory，简称CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过总线与处理器连接。存储器也可以和处理器集成在一起。
其中，存储器603用于存储执行本申请方案的应用程序代码，并由处理器601来控制执行。处理器601用于执行存储器603中存储的应用程序代码，从而实现下文中本申请实施例提供的方法。
在具体实现中，作为一种实施例，处理器601可以包括一个或多个CPU，例如图6中的CPU0和CPU1。
在具体实现中，作为一种实施例，网络设备60可以包括多个处理器，例如图6中的处理器601和处理器608。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
在具体实现中，作为一种实施例，网络设备60还可以包括输出设备605和输入设备606。
在如图1所示的网络架构中，虽然gNB无法为终端提供控制面连接，不允许终端驻留于gNB覆盖的小区，且gNB不为终端提供随机接入资源，但是RN仍有接入gNB的需求，因此，本申请实施例还提供了一种通信方法，如图7所示，该方法包括：
701、第一RN获取第一指示信息，第一指示信息用于指示允许RN接入第一接入 网设备覆盖的小区。
可选的，第一指示信息包括允许RN接入第一接入网设备覆盖的小区的信息和RN使用的接入第一接入网设备覆盖的小区的随机接入资源中的至少一个。NSA是5G网络部署初期很有可能采用的组网方式，该可选的方法，使得RN能接入NSA组网的gNB，从而提高5G网络容量。
当第一指示信息包括允许RN接入第一接入网设备覆盖的小区的信息时，第一指示信息直接指示第一接入网设备允许RN接入第一接入网设备覆盖的小区，当第一指示信息仅包括RN使用的接入第一接入网设备覆盖的小区的随机接入资源时，第一指示信息间接指示第一接入网设备允许RN接入第一接入网设备覆盖的小区。
需要说明的是，在如图1所示的网络架构中，gNB无法为RN提供随机接入资源，因此，本申请实施例中可以通过第一指示信息指示RN使用的接入第一接入网设备覆盖的小区的随机接入资源，该情况下，第一指示信息可以包括也可以不包括允许RN接入第一接入网设备覆盖的小区的信息。当然，RN使用的接入第一接入网设备覆盖的小区的随机接入资源也可以通过静态或半静态的方式配置给RN，该情况下，第一指示信息可以仅包括允许RN接入第一接入网设备覆盖的小区的信息。
可选的，步骤701在具体实现时可以通过以下方式中的任意一种方式实现：
方式一、第一接入网设备向第一RN发送第一指示信息，第一RN从第一接入网设备接收第一指示信息。
可选的，第一指示信息可以包含在广播消息中。该情况下，第一接入网设备向第一RN发送广播消息，第一RN从第一接入网设备接收广播消息，广播消息中包括第一指示信息，第一RN根据广播消息获取第一指示信息。第一接入网设备通过广播消息可以便利的向第一RN发送第一指示信息。
可选的，广播消息中还可以包括第二指示信息，第二指示信息用于指示不允许终端接入第一接入网设备覆盖的小区。该情况下，第一RN在接收到广播消息后，忽略其中的第二指示信息，根据第一指示信息执行相应的操作。该可选的方法，能够兼容现有协议版本，避免终端驻留在第一接入网设备覆盖的小区。
方式二、第一RN与第二接入网设备建立连接，并从第二接入网设备获取第一指示信息。
具体的，第一RN在向第二接入网设备发起随机接入时，可以向第二接入网设备表明其RN的身份，具体的，第一RN可以向第二接入网设备发送RN标识，第二接入网设备在接收到该RN标识后，可以向第一RN发送能够为第一RN服务的gNB的小区信息以及随机接入资源，即第一指示信息。
第一RN在获取到第一指示信息之后可以与第二接入网设备断开连接，也可以不与第二接入网设备断开连接，若不与第二接入网设备断开连接，在第一RN与第一接入网设备建立连接之后，第一接入网设备和第二接入网设备组成双连接为第一RN提供服务。此时，终端还可以通过RN与第二接入网设备连接，具体可参见图5。终端通过RN从第一接入网设备接收数据，并通过RN从第二接入网设备接收信令和/或数据。终端还通过RN向第一接入网设备发送数据，并通过RN向第二接入网设备发送信令和/或数据。
702、第一RN根据第一指示信息向第一接入网设备发起随机接入。
其中，接入第一接入网设备覆盖的小区的RN用于为终端提供数据传输服务，终端用于通过接入第一接入网设备覆盖的小区的RN与第一接入网设备建立连接，终端还用于与第二接入网设备建立连接，从第二接入网设备接收信令和/或数据。另外，终端还向第一接入网设备发送数据，向第二接入网设备发送信令和/或数据。参见图5，终端还可以通过RN与第二接入网设备连接。
可选的，第一指示信息至少包括RN使用的接入第一接入网设备覆盖的小区的随机接入资源，步骤702在具体实现时可以包括：第一RN使用第一指示信息指示的随机接入资源向第一接入网设备发起随机接入。
可选的，第一接入网设备为接入制式为NR制式的基站，第二接入网设备为接入制式为LTE制式的基站。关于该部分的描述可参见上文，在此不再赘述。
第一RN接入第一接入网设备后，网络架构可以参见图2、图3或图5所示。
示例性的，参见图4，RN通过回传链路连接到gNB，为RN服务的核心网网元的部分或全部功能，也可以内置于gNB处。终端通过接入链路连接到RN继而接入网络。其中，RN与gNB之间可以建立基于NR制式的回传链路，终端与RN之间可以建立基于LTE、NR或WLAN等制式的接入链路。
由于在热点区域部署RN时，若采用光纤传输，会存在成本高以及施工难度大等问题。因此，终端和RN之间、以及RN和gNB之间均可以通过无线方式进行数据传输，从而避免在RN和gNB之间部署光纤所导致的成本高以及施工难度大的问题。进而实现5G网络中的IAB。
本申请实施例提供的方法，第一接入网设备可以通过向RN发送第一指示信息从而使得RN接入第一接入网设备，将该方法应用于图1所示的应用场景中时，能够使得RN接入gNB，gNB可以通过RN向终端提供数据传输服务，既可以实现终端的双连接，也可以使得5G网络中可以部署RN，从而提高5G网络的容量。
上述主要从方法的角度对本申请实施例提供的方案进行了介绍。可以理解的是，上述接入网设备和/或RN为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，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，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，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申请的范围。
本申请实施例可以根据上述方法示例对接入网设备和/或RN进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
示例性的，图8示出了上述实施例中所涉及的一种装置80的可能的结构示意图，该装置80包括处理单元801和通信单元802，还可以包括存储单元803。该装置80可以为第一接入网设备或第一RN。
当该装置80为第一接入网设备，处理单元801用于对第一接入网设备的动作进行控制管理，具体的，处理单元801用于支持第一接入网设备执行本申请实施例中所描述的第一接入网设备执行的动作。通信单元802用于支持第一接入网设备与其他网络实体进行通信，例如，与第一RN进行通信。存储单元803用于存储第一接入网设备的程序代码和数据。
当该装置80为第一RN，处理单元801用于对第一RN的动作进行控制管理，例如，处理单元801用于支持第一RN执行图7中的步骤，和/或本申请实施例中所描述的其他过程中的第一RN执行的动作。通信单元802用于支持第一RN与其他网络实体进行通信，例如，与第一接入网设备进行通信。存储单元803用于存储第一RN的程序代码和数据。
其中，处理单元801可以是处理器或控制器，通信单元802可以是通信接口、收发器、收发电路等，其中，通信接口是统称，可以包括一个或多个接口。存储单元803可以是存储器。当处理单元801为处理器，通信单元802为通信接口，存储单元803为存储器时，本申请实施例所涉及的装置80可以为图6所示的网络设备60。
其中，当网络设备60为第一接入网设备时，处理器601对第一接入网设备的动作进行控制管理，具体的，处理器601用于支持第一接入网设备执行本申请实施例中所描述的第一接入网设备执行的动作。通信接口604用于支持第一接入网设备与其他网络实体进行通信，例如，与第一RN进行通信。存储器603用于存储第一接入网设备的程序代码和数据。
当网络设备60为第一RN时，处理器601对第一RN的动作进行控制管理，例如，处理器601用于支持第一RN执行图7中的步骤，和/或本申请实施例中所描述的其他过程中的第一RN执行的动作。通信接口604用于支持第一RN与其他网络实体进行通信，例如，与第一接入网设备进行通信。存储器603用于存储第一RN的程序代码和数据。
本申请实施例还提供了一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行上述方法。
本申请实施例还提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述方法。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件程序实现时，可以全部或部分地以计算机程序产品的形式来实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或者数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，简称DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可以用介质集成的服务器、数据中心等数据存储设备。所述可用介 质可以是磁性介质(例如，软盘、硬盘、磁带)，光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，简称SSD))等。
尽管在此结合各实施例对本申请进行了描述，然而，在实施所要求保护的本申请过程中，本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书，可理解并实现所述公开实施例的其他变化。在权利要求中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施不能组合起来产生良好的效果。
尽管结合具体特征及其实施例对本申请进行了描述，显而易见的，在不脱离本申请的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明，且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (26)

  1. 一种通信系统，其特征在于，包括：
    第一接入网设备、第二接入网设备、终端和中继节点RN；其中，所述终端通过所述RN与所述第一接入网设备连接，所述终端还与所述第二接入网设备连接，所述终端从所述第二接入网设备接收信令和/或数据，所述终端还通过所述RN从所述第一接入网设备接收数据。
  2. 根据权利要求1所述的通信系统，其特征在于，所述第一接入网设备为接入制式为新空口NR制式的基站，所述第二接入网设备为接入制式为长期演进LTE制式的基站。
  3. 一种通信方法，其特征在于，包括：
    第一接入网设备向第一中继节点RN发送第一指示信息，所述第一指示信息用于指示允许RN接入所述第一接入网设备覆盖的小区；
    其中，接入所述第一接入网设备覆盖的小区的RN用于为终端提供数据传输服务，所述终端用于通过接入所述第一接入网设备覆盖的小区的RN与所述第一接入网设备建立连接，所述终端还用于与第二接入网设备建立连接，从所述第二接入网设备接收信令和/或数据。
  4. 根据权利要求3所述的通信方法，其特征在于，所述第一指示信息包括允许所述RN接入所述第一接入网设备覆盖的小区的信息和所述RN使用的接入所述第一接入网设备覆盖的小区的随机接入资源中的至少一个。
  5. 根据权利要求3或4所述的通信方法，其特征在于，所述第一指示信息包含在广播消息中。
  6. 根据权利要求5所述的通信方法，其特征在于，所述广播消息中还包括第二指示信息，所述第二指示信息用于指示不允许所述终端接入所述第一接入网设备覆盖的小区。
  7. 根据权利要求3-6任一项所述的通信方法，其特征在于，所述第一接入网设备为接入制式为新空口NR制式的基站，所述第二接入网设备为接入制式为长期演进LTE制式的基站。
  8. 一种通信方法，其特征在于，包括：
    第一中继节点RN获取第一指示信息，所述第一指示信息用于指示允许RN接入第一接入网设备覆盖的小区；
    所述第一RN根据所述第一指示信息向所述第一接入网设备发起随机接入；
    其中，接入所述第一接入网设备覆盖的小区的RN用于为终端提供数据传输服务，所述终端用于通过接入所述第一接入网设备覆盖的小区的RN与所述第一接入网设备建立连接，所述终端还用于与第二接入网设备建立连接，从所述第二接入网设备接收信令和/或数据。
  9. 根据权利要求8所述的通信方法，其特征在于，所述第一指示信息包括允许所述RN接入所述第一接入网设备覆盖的小区的信息和所述RN使用的接入所述第一接入网设备覆盖的小区的随机接入资源中的至少一个。
  10. 根据权利要求8或9所述的通信方法，其特征在于，所述第一指示信息至少 包括所述RN使用的接入所述第一接入网设备覆盖的小区的随机接入资源，所述第一RN根据所述第一指示信息向所述第一接入网设备发起随机接入，包括：
    所述第一RN使用所述第一指示信息指示的随机接入资源向所述第一接入网设备发起随机接入。
  11. 根据权利要求8-10任一项所述的通信方法，其特征在于，所述第一RN获取第一指示信息，包括：
    所述第一RN从所述第一接入网设备接收广播消息，所述广播消息中包括第一指示信息，所述第一RN根据所述广播消息获取所述第一指示信息；或者，
    所述第一RN与所述第二接入网设备建立连接，并从所述第二接入网设备获取所述第一指示信息。
  12. 根据权利要求11所述的通信方法，其特征在于，所述广播消息中还包括第二指示信息，所述第二指示信息用于指示不允许所述终端接入所述第一接入网设备覆盖的小区。
  13. 根据权利要求8-12任一项所述的通信方法，其特征在于，所述第一接入网设备为接入制式为新空口NR制式的基站，所述第二接入网设备为接入制式为长期演进LTE制式的基站。
  14. 一种通信装置，其特征在于，包括：处理单元和通信单元；
    所述处理单元，用于通过所述通信单元向第一中继节点RN发送第一指示信息，所述第一指示信息用于指示允许RN接入所述通信装置覆盖的小区；
    其中，接入所述通信装置覆盖的小区的RN用于为终端提供数据传输服务，所述终端用于通过接入所述通信装置覆盖的小区的RN与所述通信装置建立连接，所述终端还用于与第二接入网设备建立连接，从所述第二接入网设备接收信令和/或数据。
  15. 根据权利要求14所述的通信装置，其特征在于，所述第一指示信息包括允许所述RN接入所述通信装置覆盖的小区的信息和所述RN使用的接入所述通信装置覆盖的小区的随机接入资源中的至少一个。
  16. 根据权利要求14或15所述的通信装置，其特征在于，所述第一指示信息包含在广播消息中。
  17. 根据权利要求16所述的通信装置，其特征在于，所述广播消息中还包括第二指示信息，所述第二指示信息用于指示不允许所述终端接入所述通信装置覆盖的小区。
  18. 根据权利要求14-17任一项所述的通信装置，其特征在于，所述通信装置为接入制式为新空口NR制式的基站，所述第二接入网设备为接入制式为长期演进LTE制式的基站。
  19. 一种通信装置，其特征在于，包括：
    处理单元，用于获取第一指示信息，所述第一指示信息用于指示允许RN接入第一接入网设备覆盖的小区；
    所述处理单元，还用于根据所述第一指示信息向所述第一接入网设备发起随机接入；
    其中，接入所述第一接入网设备覆盖的小区的RN用于为终端提供数据传输服务，所述终端用于通过接入所述第一接入网设备覆盖的小区的RN与所述第一接入网设备 建立连接，所述终端还用于与第二接入网设备建立连接，从所述第二接入网设备接收信令和/或数据。
  20. 根据权利要求19所述的通信装置，其特征在于，所述第一指示信息包括允许所述RN接入所述第一接入网设备覆盖的小区的信息和所述RN使用的接入所述第一接入网设备覆盖的小区的随机接入资源中的至少一个。
  21. 根据权利要求19或20所述的通信装置，其特征在于，所述第一指示信息至少包括所述RN使用的接入所述第一接入网设备覆盖的小区的随机接入资源，所述处理单元，具体用于：
    使用所述第一指示信息指示的随机接入资源向所述第一接入网设备发起随机接入。
  22. 根据权利要求19-21任一项所述的通信装置，其特征在于，
    所述通信装置还包括通信单元，所述处理单元还用于通过所述通信单元从所述第一接入网设备接收广播消息，所述广播消息中包括第一指示信息，所述处理单元还用于根据所述广播消息获取所述第一指示信息；或者，
    所述处理单元，还用于与所述第二接入网设备建立连接，并从所述第二接入网设备获取所述第一指示信息。
  23. 根据权利要求22所述的通信装置，其特征在于，所述广播消息中还包括第二指示信息，所述第二指示信息用于指示不允许所述终端接入所述第一接入网设备覆盖的小区。
  24. 根据权利要求19-23任一项所述的通信装置，其特征在于，所述第一接入网设备为接入制式为新空口NR制式的基站，所述第二接入网设备为接入制式为长期演进LTE制式的基站。
  25. 一种通信装置，其特征在于，包括：存储器和处理器；
    所述存储器用于存储计算机执行指令，所述处理器执行所述存储器存储的所述计算机执行指令，以使所述通信装置实现权利要求3-7任一项提供的通信方法。
  26. 一种通信装置，其特征在于，包括：存储器和处理器；
    所述存储器用于存储计算机执行指令，所述处理器执行所述存储器存储的所述计算机执行指令，以使所述通信装置实现权利要求8-13任一项提供的通信方法。
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