WO2021169309A1 - 通信方法、装置及系统 - Google Patents

通信方法、装置及系统 Download PDF

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Publication number
WO2021169309A1
WO2021169309A1 PCT/CN2020/119855 CN2020119855W WO2021169309A1 WO 2021169309 A1 WO2021169309 A1 WO 2021169309A1 CN 2020119855 W CN2020119855 W CN 2020119855W WO 2021169309 A1 WO2021169309 A1 WO 2021169309A1
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Prior art keywords
terminal
network element
relay node
identification information
information
Prior art date
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PCT/CN2020/119855
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English (en)
French (fr)
Inventor
潘奇
黄正磊
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华为技术有限公司
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Publication of WO2021169309A1 publication Critical patent/WO2021169309A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]

Definitions

  • the present invention relates to the field of communication technology, in particular to a communication method, device and system.
  • IoT Internet of Things
  • mMTC large-scale machine type communications
  • MIoT machine internet of things
  • the terminal can be connected to the network through a direct link, and it can also be connected to the network through an adjacent terminal.
  • the terminal can access the network through a direct link and/or access the network through multiple adjacent terminals.
  • the network-side device cannot aggregate the service data of the terminal and send it to the application server through the same transmission path, resulting in a waste of transmission resources.
  • the purpose of the present invention is to provide a communication method, device, and system, which can solve the problem that when a terminal accesses the network through a direct link and/or an adjacent terminal in the prior art, the network side device cannot connect the terminal
  • the business data is aggregated and sent to the application server through the same transmission path, which leads to the technical problem of waste of transmission resources.
  • a communication method includes: an access network element acquiring identification information of a first terminal, identification information of at least one relay node of the first terminal, and information of a QoS flow corresponding to the first terminal QoS flow is used to transmit the service data of the first terminal; the relay node is used to forward the service data of the first terminal; the access network element receives the service data of the first terminal; the service data of the first terminal includes at least one relay node The forwarded service data of the first terminal; the access network element sends the service data of the first terminal to the user plane network element through the QoS flow.
  • the access network element can obtain the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal.
  • the network element of the access network may send the service data of the first terminal sent by the first terminal It is aggregated with the service data of the first terminal sent by the relay node, and sent to the user plane network element through the QoS flow corresponding to the first terminal, thereby improving the utilization rate of transmission resources.
  • the access network element receives the first information including the identification information of the first terminal, the identification information of at least one relay node, and the information of the QoS flow from the mobility management network element.
  • the access network element receives the first information including the identification information of the first terminal, the identification information of the first relay node, and the information of the QoS flow from the mobility management network element; at least one of them
  • the relay node includes a first relay node; the access network element receives second information including identification information of the first terminal, identification information of the second relay node, and QoS flow information from the mobility management network element; at least One relay node includes a second relay node.
  • the access network element can determine the identification information of the first terminal, the identification information of at least one relay node, and the QoS flow information according to the received first information; or according to the received first information
  • the first information and the second information determine the identification information of the first terminal, the identification information of at least one relay node, and the information of the QoS flow, which can effectively and flexibly determine the related information of the first terminal and the related information of the relay node.
  • the access network element receives the first service data from the first terminal and receives the relay service data from at least one relay node; the access network element receives the identification information of the first terminal, The identification information of at least one relay node determines that the first service data and the relay service data are both service data of the first terminal; the access network element sends the service data of the first terminal to the user plane network element through the QoS flow.
  • the access network element receives the first relay service data from the first relay node and receives the second relay service data from the second relay node; wherein, at least one relay node It includes a first relay node and a second relay node; the access network element determines that both the first relay service data and the second relay service data are based on the identification information of the first terminal and the identification information of at least one relay node. Is the service data of the first terminal; the access network network element sends the service data of the first terminal to the user plane network element through the QoS flow.
  • the access network element can aggregate the service data of the first terminal sent by the first terminal with the service data of the first terminal forwarded by the relay node, and then send it through the QoS flow corresponding to the first terminal.
  • To the user plane network element It is also possible to aggregate the service data of the first terminal forwarded by each relay node and send it to the user plane network element through the QoS flow corresponding to the first terminal, so as to realize the service of the network side device to the first terminal through the access network network element.
  • the aggregation of data and the transmission of the service data of the first terminal through the same transmission path improves the utilization rate of transmission resources.
  • a communication device in a second aspect, can implement the functions performed by the access network elements in the first aspect or the possible design of the first aspect, and the functions can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device includes: a receiving module and a sending module.
  • the receiving module is used to obtain the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal; the QoS flow is used to transmit the service data of the first terminal; and the relay The node is used to forward the service data of the first terminal.
  • the receiving module is further configured to receive service data of the first terminal; the service data of the first terminal includes the service data of the first terminal forwarded by at least one relay node.
  • the sending module is used to send the service data of the first terminal to the user plane network element through the QoS flow.
  • the specific implementation of the communication device may refer to the behavior function of the access network element in the communication method provided in the first aspect or any one of the possible designs of the first aspect.
  • the connection The network element of the network access may obtain the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal.
  • the network element of the access network may send the service data of the first terminal sent by the first terminal It is aggregated with the service data of the first terminal sent by the relay node, and sent to the user plane network element through the QoS flow corresponding to the first terminal, thereby improving the utilization rate of transmission resources.
  • the receiving module is further configured to receive first information including identification information of the first terminal, identification information of at least one relay node, and QoS flow information from the mobility management network element.
  • the receiving module is further configured to receive the first information including the identification information of the first terminal, the identification information of the first relay node, and the information of the QoS flow from the mobility management network element; the receiving module , Is also used to receive second information including the identification information of the first terminal, the identification information of the second relay node, and the information of the QoS flow from the mobility management network element; at least one relay node includes the first relay node And the second relay node.
  • the access network element can determine the identification information of the first terminal, the identification information of at least one relay node, and the QoS flow information according to the received first information; or according to the received first information
  • the first information and the second information determine the identification information of the first terminal, the identification information of at least one relay node, and the information of the QoS flow, which can effectively and flexibly determine the related information of the first terminal and the related information of the relay node.
  • the communication device further includes a processing module, where the receiving module is further configured to receive first service data from the first terminal and to receive relay service data from at least one relay node; the processing module, It is used to determine that the first service data and the relay service data are both service data of the first terminal according to the identification information of the first terminal and the identification information of at least one relay node; The business data is sent to the user plane network element.
  • the receiving module is configured to receive the first relay service data from the first relay node and the second relay service data from the second relay node; wherein, at least one relay node It includes a first relay node and a second relay node; a processing module configured to determine whether the first relay service data and the second relay service data are both the first relay service data and the second relay service data according to the identification information of the first terminal and the identification information of at least one relay node Is the service data of the first terminal; the sending module is used to send the service data of the first terminal to the user plane network element through the QoS flow.
  • the access network element can aggregate the service data of the first terminal sent by the first terminal with the service data of the first terminal forwarded by the relay node, and then send it through the QoS flow corresponding to the first terminal.
  • To the user plane network element It is also possible to aggregate the service data of the first terminal forwarded by each relay node and send it to the user plane network element through the QoS flow corresponding to the first terminal, so as to realize the service of the network side device to the first terminal through the access network network element.
  • the aggregation of data and the transmission of the service data of the first terminal through the same transmission path improves the utilization rate of transmission resources.
  • a communication device may be an access network element or a chip or a system on a chip in an access network element.
  • the communication device can implement the functions performed by the access network elements in the above-mentioned aspects or various possible designs, and the functions can be implemented by hardware.
  • the communication device may include a transceiver. The transceiver may be used to support the communication device to implement the aforementioned first aspect or the functions involved in any possible design of the first aspect.
  • the transceiver may be used to obtain the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal; the QoS flow is used to transmit the service data of the first terminal; The relay node is used to forward the service data of the first terminal.
  • the transceiver may also be used to receive service data of the first terminal; the service data of the first terminal includes the service data of the first terminal forwarded by at least one relay node.
  • the transceiver may also be used to send the service data of the first terminal to the user plane network element through the QoS flow.
  • the communication device may further include a memory, and the memory is used to store necessary computer-executable instructions and data of the communication device.
  • the transceiver executes the computer-executable instructions stored in the memory, so that the communication device executes the communication method described in the first aspect or any one of the possible designs of the first aspect.
  • the specific implementation of the communication device may refer to the first aspect or the behavior function of the network element of the access network in the communication method provided by any possible design of the first aspect.
  • a communication device in a fourth aspect, includes one or more processors and one or more memories; the one or more memories are coupled with the one or more processors, and the one or more memories are used for storing Computer program code or computer instructions; when one or more processors execute the computer instructions, it causes the communication device to execute the communication method as described in the first aspect or any possible design of the first aspect.
  • a computer-readable storage medium stores computer instructions or programs. When the computer instructions or programs are run on a computer, the computer executes the steps described in the first aspect or the first aspect. Any possible design of the communication method described.
  • a computer program product containing instructions, which when running on a computer, causes the computer to execute the communication method as described in the first aspect or any possible design of the first aspect.
  • a chip system in a seventh aspect, includes one or more processors and one or more memories; the one or more memories are coupled to the one or more processors, and the one or more memories store There are computer program codes or computer instructions; when the one or more processors execute the computer program codes or computer instructions, the chip system is caused to execute the above-mentioned first aspect or any possible design of the first aspect The communication method mentioned.
  • a communication method comprising: a user plane network element acquiring identification information of a first terminal, identification information of at least one relay node of the first terminal, and at least one corresponding to at least one relay node QoS flow information; wherein the relay node is used to forward the service data of the first terminal; the QoS flow is used to transmit the service data of the first terminal forwarded by the relay node; the user plane network element receives the first terminal’s service data through at least one QoS flow Service data; wherein the service data of the first terminal includes the service data of the first terminal forwarded by at least one relay node; the user plane network element aggregates the service data of the first terminal and sends it to the application server.
  • the user plane network element can obtain the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the QoS flow information corresponding to each relay node. After receiving the service data of the first terminal sent by each relay node, the user plane network element may aggregate the service data of the first terminal and send it to the application server. Therefore, the user plane network element is used to realize the aggregation of the service data of the first terminal by the network side device, and transmit the service data of the first terminal through the same transmission path, thereby improving the utilization rate of transmission resources.
  • the information of at least one QoS flow corresponding to at least one relay node includes: different relay nodes correspond to different QoS flows; or relay nodes corresponding to the same access network element correspond to the same QoS Flow, the relay nodes corresponding to different access network elements correspond to different QoS flows.
  • relay nodes and QoS flows it is possible to one-to-one correspondence between relay nodes and QoS flows, or relay nodes corresponding to the same access network element to the same QoS flow, and to relay nodes corresponding to different access network elements.
  • the user plane network element receives the first information including the identification information of the first terminal, the identification information of at least one relay node, and the information of at least one QoS flow from the session management network element.
  • the user plane network element receives the first terminal identification information, the identification information of the first relay node, and the QoS flow information corresponding to the first relay node from the session management network element.
  • Information the user plane network element receives from the session management network element the second information including the identification information of the first terminal, the identification information of the second relay node, and the information of the QoS flow corresponding to the second relay node; at least one of The relay node includes a first relay node and a second relay node.
  • the user plane network element can determine the identification information of the first terminal, the identification information of at least one relay node, and the information of the QoS flow corresponding to the relay node according to the received first information, or according to The received first information and second information determine the identification information of the first terminal, the identification information of at least one relay node, and the information of the QoS flow corresponding to the relay node, which can effectively and flexibly determine the relevant information of the first terminal and Related information of the following nodes.
  • the user plane network element receives the first relay service data through the first QoS flow corresponding to the first relay node, and receives the second relay service data through the second QoS flow corresponding to the second relay node.
  • Relay service data the user plane network element determines that the first relay service data and the second relay service data are both the first relay service data and the second relay service data according to the identification information of the at least one relay node of the first terminal and the QoS flow information corresponding to the relay node Service data of a terminal; the user plane network element aggregates the first relay service data and the second relay service data and sends them to the application server.
  • the user plane network element can aggregate the service data of the first terminal forwarded by each relay node and send it to the application server, so that the network side device can aggregate the service data of the first terminal through the user plane network element. , And transmit the service data of the first terminal through the same transmission path to improve the utilization rate of transmission resources.
  • a communication device in a ninth aspect, can implement the functions performed by the user plane network element in the eighth aspect or the possible design of the eighth aspect, and the functions can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device includes: a receiving module and a sending module.
  • the receiving module is used to obtain the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of at least one QoS flow corresponding to the at least one relay node; wherein the relay node is used to forward the first terminal The service data of a terminal; the QoS flow is used to transmit the service data of the first terminal forwarded by the relay node.
  • the receiving module is further configured to receive service data of the first terminal through at least one QoS flow; wherein the service data of the first terminal includes the service data of the first terminal forwarded by at least one relay node.
  • the sending module is used to aggregate the service data of the first terminal and send it to the application server.
  • the specific implementation of the communication device may refer to the behavior function of the user plane network element in the communication method provided in the eighth aspect or any one of the possible designs of the eighth aspect.
  • the user plane The network element may obtain identification information of the first terminal, identification information of at least one relay node of the first terminal, and QoS flow information corresponding to each relay node. After receiving the service data of the first terminal sent by each relay node, the user plane network element may aggregate the service data of the first terminal and send it to the application server. Therefore, the user plane network element is used to realize the aggregation of the service data of the first terminal by the network side device, and transmit the service data of the first terminal through the same transmission path, thereby improving the utilization rate of transmission resources.
  • the information of at least one QoS flow corresponding to at least one relay node includes: different relay nodes correspond to different QoS flows; or relay nodes corresponding to the same access network element correspond to the same QoS Flow, the relay nodes corresponding to different access network elements correspond to different QoS flows.
  • relay nodes and QoS flows it is possible to one-to-one correspondence between relay nodes and QoS flows, or relay nodes corresponding to the same access network element to the same QoS flow, and to relay nodes corresponding to different access network elements.
  • the receiving module is further configured to receive first information including identification information of the first terminal, identification information of at least one relay node, and information of at least one QoS flow from the session management network element.
  • the receiving module is further configured to receive the identification information of the first terminal, the identification information of the first relay node, and the information of the QoS flow corresponding to the first relay node from the session management network element.
  • the first information the receiving module is also used to receive the second information including the identification information of the first terminal, the identification information of the second relay node, and the information of the QoS flow corresponding to the second relay node from the session management network element ;
  • At least one relay node includes a first relay node and a second relay node.
  • the user plane network element can determine the identification information of the first terminal, the identification information of at least one relay node, and the information of the QoS flow corresponding to the relay node according to the received first information.
  • the identification information of the first terminal, the identification information of at least one relay node, and the information of the QoS flow corresponding to the relay node can also be determined according to the received first information and second information, which can effectively and flexibly determine the identification information of the first terminal.
  • Related information and related information of the relay node can be determined according to the received first information and second information, which can effectively and flexibly determine the identification information of the first terminal.
  • the receiving module is further configured to receive the first relay service data through the first QoS flow corresponding to the first relay node, and to receive the first relay service data through the second QoS flow corresponding to the second relay node.
  • Relay service data the receiving module is also used to determine the first relay service data and the second relay service according to the identification information of at least one relay node of the first terminal and the information of the QoS flow corresponding to the relay node
  • the data are all service data of the first terminal; the user plane network element aggregates the first relay service data and the second relay service data and sends them to the application server.
  • the user plane network element can aggregate the service data of the first terminal forwarded by each relay node and send it to the application server, so that the network side device can aggregate the service data of the first terminal through the user plane network element. , And transmit the service data of the first terminal through the same transmission path to improve the utilization rate of transmission resources.
  • a communication device may be a user plane network element or a chip or a system on a chip in a user plane network element.
  • the communication device can realize the functions performed by the user plane network elements in the above-mentioned aspects or various possible designs, and the functions can be realized by hardware.
  • the communication device may include a transceiver.
  • the transceiver may be used to support the communication device to implement the functions involved in the eighth aspect or any one of the possible designs of the eighth aspect.
  • the transceiver may be used to obtain the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of at least one QoS flow corresponding to the at least one relay node; wherein the relay node is used to The service data of the first terminal is forwarded; the QoS stream is used to transmit the service data of the first terminal forwarded by the relay node.
  • the transceiver may also be used to receive service data of the first terminal through at least one QoS flow; wherein the service data of the first terminal includes the service data of the first terminal forwarded by at least one relay node.
  • the transceiver may also be used to aggregate the service data of the first terminal and send it to the application server.
  • the communication device may further include a memory, and the memory is used to store necessary computer-executable instructions and data of the communication device.
  • the transceiver executes the computer-executable instructions stored in the memory, so that the communication device executes the communication method according to the eighth aspect or any one of the possible designs of the eighth aspect.
  • the specific implementation of the communication device may refer to the eighth aspect or the behavior function of the user plane network element in the communication method provided by any possible design of the eighth aspect.
  • a communication device in an eleventh aspect, includes one or more processors and one or more memories; the one or more memories are coupled to the one or more processors, and the one or more memories are used for Computer program codes or computer instructions are stored; when one or more processors execute the computer instructions, the communication device is caused to execute the communication method according to the eighth aspect or any possible design of the eighth aspect.
  • a computer-readable storage medium stores computer instructions or programs.
  • the computer instructions or programs When the computer instructions or programs are run on a computer, the computer can execute the eighth aspect or the eighth aspect. Any possible design of the communication method described.
  • the thirteenth aspect provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the communication method as described in the eighth aspect or any possible design of the eighth aspect.
  • a chip system in a fourteenth aspect, includes one or more processors and one or more memories; the one or more memories are coupled to the one or more processors, and the one or more memories are Stored with computer program codes or computer instructions; when the one or more processors execute the computer program codes or computer instructions, the chip system is made to execute any possible design as in the eighth aspect or the eighth aspect described above The communication method described.
  • a communication method includes: a session management network element obtains identification information of a first terminal and identification information of at least one relay node of the first terminal; Send the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the quality of service QoS flow; wherein the relay node is used to forward the service data of the first terminal; the QoS flow is used to transmit the first terminal’s service data; The service data of the terminal; the service data of the first terminal includes the service data of the first terminal forwarded by at least one relay node.
  • the session management network element can send the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and QoS flow information to the core network element, so that the access network element or
  • the user plane network element implements the aggregation of the service data of the first terminal according to the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow, and transmits the first terminal through the same transmission path Business data, improve the utilization of transmission resources.
  • the session management network element when the core network element is a mobility management network element, the session management network element sends the identification information of the first terminal, the identification information of at least one relay node, and the first terminal to the mobility management network element.
  • the first information of the information and the second information including the identification information of the first terminal, the identification information of the second relay node, and the information of the QoS flow corresponding to the first terminal; at least one relay node includes the first relay node And the second relay node.
  • the session management network element can send the first information, or the first information and the second information to the mobility management network element, so that the mobility management network element can combine the first information, or the first information and the second information.
  • the second information is sent to the access network element, so that the access network element aggregates the service data of the first terminal according to the first information, or the first information and the second information, and then sends it to the user plane through the QoS flow corresponding to the first terminal.
  • the network element thus realizes the aggregation of the service data of the first terminal by the network side device through the access network network element, and transmits the service data of the first terminal through the same transmission path, thereby improving the utilization rate of transmission resources.
  • the session management network element when the core network element is a user plane network element, the session management network element sends to the user plane network element the identification information of the first terminal, the identification information of at least one relay node, and at least one medium The first information of the at least one QoS flow information corresponding to the relay node; or the session management network element sends the identification information of the first terminal, the identification information of the first relay node, and the corresponding information of the first relay node to the user plane network element
  • the first information of the QoS flow information and the second information including the identification information of the first terminal, the identification information of the second relay node, and the information of the QoS flow corresponding to the second relay node; at least one relay node includes The first relay node and the second relay node.
  • the session management network element can send the first information, or the first information and the second information to the user-plane network element, so that the user-plane network element can be based on the first information, or the first information and the second information.
  • the service data of the first terminal is aggregated and sent to the application server, so that the network-side device aggregates the service data of the first terminal through the user plane network element, and transmits the service data of the first terminal through the same transmission path to improve transmission resources Utilization rate.
  • the session management network element receives the location information of at least one relay node from the mobility management network element; the session management network element determines the user plane network element according to the location information of the at least one relay node.
  • the session management network element can determine the user plane network element according to the location information of each relay node, so that the user plane network element can receive the service data of the first terminal forwarded by each relay node.
  • a communication device in a sixteenth aspect, can implement the functions performed by the session management network element in the fifteenth aspect or the possible design of the fifteenth aspect.
  • the functions can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device includes: a receiving module and a sending module.
  • the receiving module is configured to obtain identification information of the first terminal and identification information of at least one relay node of the first terminal.
  • the sending module is used to send the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the quality of service QoS flow to the core network element; wherein the relay node is used to forward the first terminal
  • the QoS flow is used to transmit the service data of the first terminal; the service data of the first terminal includes the service data of the first terminal forwarded by at least one relay node.
  • the session management network element may send the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow to the core network element, so that the access network element or the user plane network element is based on The identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow realize the aggregation of the service data of the first terminal, and transmit the service data of the first terminal through the same transmission path, which improves Transmission resource utilization.
  • the sending module is specifically configured to send to the mobility management network element the identification information of the first terminal, the identification information of at least one relay node, And the first information of the QoS flow information corresponding to the first terminal; or the sending module, specifically configured to send the identification information of the first terminal, the identification information of the first relay node, and the first terminal to the mobility management network element
  • the first information of the corresponding QoS flow information and the second information including the identification information of the first terminal, the identification information of the second relay node, and the information of the QoS flow corresponding to the first terminal; at least one relay node includes the first terminal A relay node and a second relay node.
  • the session management network element can send the first information, or the first information and the second information to the mobility management network element, so that the mobility management network element can combine the first information, or the first information and the second information.
  • the second information is sent to the access network element, so that the access network element aggregates the service data of the first terminal according to the first information, or the first information and the second information, and then sends it to the user plane through the QoS flow corresponding to the first terminal.
  • the network element thus realizes the aggregation of the service data of the first terminal by the network side device through the access network network element, and transmits the service data of the first terminal through the same transmission path, thereby improving the utilization rate of transmission resources.
  • the sending module is specifically configured to send to the user plane network element the identification information of the first terminal, the identification information of at least one relay node, and at least The first information of at least one QoS flow information corresponding to a relay node; or the sending module, specifically configured to send the identification information of the first terminal, the identification information of the first relay node, and the first information to the user plane network element.
  • the first information of the QoS flow information corresponding to the relay node and the second information including the identification information of the first terminal, the identification information of the second relay node, and the information of the QoS flow corresponding to the second relay node; at least one
  • the relay node includes a first relay node and a second relay node.
  • the session management network element can send the first information, or the first information and the second information to the user-plane network element, so that the user-plane network element can be based on the first information, or the first information and the second information.
  • the service data of the first terminal is aggregated and sent to the application server, so that the network-side device aggregates the service data of the first terminal through the user plane network element, and transmits the service data of the first terminal through the same transmission path to improve transmission resources Utilization rate.
  • the communication device further includes a processing module, wherein the receiving module is also used to receive location information of at least one relay node from the mobility management network element; The location information determines the user plane network element.
  • the session management network element can determine the user plane network element according to the location information of each relay node, so that the user plane network element can receive the service data of the first terminal forwarded by each relay node.
  • a communication device may be a session management network element or a chip or a system on a chip in a session management network element.
  • the communication device can implement the functions performed by the session management network elements in the above-mentioned aspects or various possible designs, and the functions can be implemented by hardware.
  • the communication device may include a transceiver.
  • the transceiver may be used to support the communication device to implement the functions involved in the fifteenth aspect or any one of the possible designs of the fifteenth aspect.
  • the transceiver may be used to obtain the identification information of the first terminal and the identification information of at least one relay node of the first terminal.
  • the transceiver may also be used to send identification information of the first terminal, identification information of at least one relay node of the first terminal, and information about the quality of service QoS flow to the core network element; wherein the relay node is used to forward the first terminal The service data of the terminal; the QoS stream is used to transmit the service data of the first terminal; the service data of the first terminal includes the service data of the first terminal forwarded by at least one relay node.
  • the communication device may further include a memory, and the memory is used to store necessary computer-executable instructions and data of the communication device. When the communication device is running, the transceiver executes the computer-executable instructions stored in the memory, so that the communication device executes the communication method according to the fifteenth aspect or any one of the possible designs of the fifteenth aspect.
  • the specific implementation of the communication device may refer to the behavior function of the session management network element in the communication method provided by the fifteenth aspect or any one of the possible designs of the fifteenth aspect.
  • a communication device in an eighteenth aspect, includes one or more processors and one or more memories; the one or more memories are coupled to the one or more processors, and the one or more memories are used for Computer program codes or computer instructions are stored; when one or more processors execute the computer instructions, the communication device is caused to execute the communication method as described in the fifteenth aspect or any possible design of the fifteenth aspect.
  • a computer-readable storage medium stores computer instructions or programs.
  • the computer instructions or programs When the computer instructions or programs are run on a computer, the computer can execute the The communication method described in any one of the five possible designs.
  • the twentieth aspect provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the communication method as described in the fifteenth aspect or any possible design of the fifteenth aspect.
  • a chip system in a twenty-first aspect, includes one or more processors and one or more memories; one or more memories are coupled to one or more processors, and one or more memories
  • the computer program code or computer instruction is stored in the processor; when the one or more processors execute the computer program code or computer instruction, the chip system is caused to execute any one of the fifteenth aspect or the fifteenth aspect described above. Possible design of the communication method described.
  • the technical effect brought by any design method of the seventeenth aspect to the twenty-first aspect can be referred to the technical effect brought by any possible design of the fifteenth aspect to the sixteenth aspect. No longer.
  • a communication system including the communication device according to the second aspect or any possible design of the second aspect and any one of the sixteenth aspect or the sixteenth aspect It is possible to design the described communication device.
  • a communication system in a twenty-third aspect, includes the communication device according to any possible design of the ninth aspect or the ninth aspect and any one of the sixteenth aspect or the sixteenth aspect. It is possible to design the described communication device.
  • FIG. 1 is a schematic diagram of a communication system provided by an embodiment of this application.
  • FIG. 1a is a schematic diagram of a 5G communication system provided by an embodiment of this application.
  • FIG. 2 is a structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 3a is a schematic diagram of a communication system provided by an embodiment of this application.
  • FIG. 3 is a flowchart of a communication method provided by an embodiment of this application.
  • FIG. 4 is a flowchart of a communication method provided by an embodiment of this application.
  • FIG. 5 is a flowchart of a communication method provided by an embodiment of this application.
  • FIG. 6a is a schematic diagram of a communication system provided by an embodiment of this application.
  • FIG. 6 is a schematic diagram of a communication method provided by an embodiment of this application.
  • FIG. 7 is a flowchart of a communication method provided by an embodiment of this application.
  • FIG. 8 is a flowchart of a communication method provided by an embodiment of this application.
  • FIG. 9 is a schematic diagram of the composition of a communication device provided by an embodiment of the application.
  • FIG. 10 is a schematic diagram of the composition of a communication device provided by an embodiment of this application.
  • FIG. 11 is a schematic diagram of the composition of a communication device provided by an embodiment of this application.
  • the terminal when a terminal is in a poor network coverage area or has no network coverage, the terminal can access the network through a direct link and/or access the network through multiple adjacent terminals.
  • the network-side device cannot aggregate the service data of the terminal and send it to the application server through the same transmission path, resulting in a waste of transmission resources. For example, suppose that the first terminal can transmit the service data of the first terminal to the application server through the protocol data unit (PDU) session of the second terminal and the PDU session of the third terminal.
  • PDU protocol data unit
  • the PDU session of the third terminal corresponds to different access network network elements and different user plane network elements, and the service data of the first terminal needs to be sent to the application function network through different access network network elements and different user plane network elements.
  • Meta that is, the first terminal transmits the service data of the first terminal to the application server through different transmission paths, resulting in a waste of transmission resources.
  • an embodiment of the present application provides a communication method, which may include: the access network element obtains the identification information of the first terminal, the identification information of at least one relay node of the first terminal, the first Information about the QoS flow corresponding to the terminal.
  • the network element of the access network may send the service data of the first terminal sent by the first terminal.
  • the service data of the first terminal sent by the relay node is aggregated together, and sent to the user plane network element through the quality of service (QoS) stream corresponding to the first terminal, thereby improving the utilization of transmission resources.
  • QoS quality of service
  • the communication method provided in the embodiments of the present application can be used in any communication system, and the communication system may be a third generation partnership project (3GPP) communication system, for example, a long term evolution (LTE) system, It may also be a fifth generation (5G) mobile communication system, a new radio (NR) system, an NR V2X system, and other next-generation communication systems, or it may be a non-3GPP communication system, which is not limited.
  • 3GPP third generation partnership project
  • LTE long term evolution
  • 5G fifth generation
  • NR new radio
  • NR V2X NR V2X
  • non-3GPP communication system which is not limited.
  • the communication method provided by the embodiments of this application can be applied to various communication scenarios, for example, can be applied to one or more of the following communication scenarios: enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (ultra reliable low latency communication (URLLC), machine type communication (MTC), massive machine type communications (mMTC), device to device (device to device, D2D), vehicle outreach (vehicle to everything (V2X), vehicle to vehicle (V2V), and Internet of things (IoT), etc.
  • eMBB enhanced mobile broadband
  • URLLC ultra-reliable low-latency communication
  • MTC machine type communication
  • mMTC massive machine type communications
  • device to device device to device
  • D2D device to device
  • vehicle outreach vehicle to everything
  • V2V vehicle to vehicle
  • IoT Internet of things
  • Fig. 1 is a schematic diagram of a communication system provided by an embodiment of the application.
  • the communication system may include multiple terminals, at least one access network element, mobility management network element, session management network element, Policy control network elements, user plane network elements, application function network elements, and data network (DN).
  • DN data network
  • the terminal in Figure 1 can perform side-line communication or D2D communication with other terminals through the sidelink (SL), and send data to other terminals on the SL, such as: sharing on the SL through the physical layer of the sidelink
  • the channel (physical sidelink share channel, PSSCH) sends sideline data to other terminals, and on the SL through the sidelink physical layer feedback channel (physical sidelink feedback channel, PSFCH) sends other terminals corresponding to the received sideline data Sidelink feedback control information (SFCI), etc.
  • D2D communication may include vehicle-to-vehicle communication, vehicle-pedestrian communication, vehicle-infrastructure communication, unmanned aerial vehicle (UAV) and unmanned aerial vehicle communication, etc., without limitation.
  • the SL may also be referred to as a direct link or a PC5 interface link, etc., which is not limited.
  • the terminal in FIG. 1 may be located within the coverage area of the cell of the access network element, or may be located outside the coverage area of the cell of the access network element. Among them, the terminal can perform air interface communication with the access network element through the uplink (uplink, UL).
  • uplink uplink, UL
  • the terminal sends data to the access network element, and the access network element forwards the received data to Core network network element, the core network network element processes the data, and sends the processed data to the application server through the N6 interface; in the DL direction, the application server sends the downlink data to the core network network element, and the core network network The element processes the data, and sends the processed data to the access network network element through the N3 interface, and the access network network element processes the data and sends it to the terminal through the air interface.
  • the terminal sends uplink data to the access network element through the physical layer shared channel (PUSCH) in the UL direction, and the access network element forwards the received uplink data to the core network element ,
  • the core network element processes the uplink data, and sends the processed uplink data to the application server through the N6 interface; among them, the access network element that forwards the uplink data from the terminal to the core network element and the core network element
  • the access network network elements of the downlink data to the terminal may be the same access network network element or different access network network elements.
  • the terminal in FIG. 1 may also communicate with the core network element through a specific interface, for example, the terminal may communicate with the mobility management network element in the core network element through the N1 interface.
  • the terminal in Figure 1 can establish a protocol data unit (PDU) session after accessing the network, access the external data network DN through the PDU session, and interact with the application server deployed in the DN, as shown in Figure 1.
  • PDU protocol data unit
  • the network can select the user plane network element connected to the DN as the anchor point of the PDU session according to the network policy, that is, the PDU session anchor (PSA), and access the application server through the N6 interface of the PSA ,
  • PSA PDU session anchor
  • the application server of the same application can be deployed in multiple locations, and the network can select a PSA that is close to the terminal and supports the terminal's access to the DN according to the terminal's access location, so as to reduce circuitous routes and reduce network delay.
  • the terminal (terminal) in FIG. 1 may be referred to as user equipment (UE), mobile station (mobile station, MS) or mobile terminal (mobile terminal, MT), etc.
  • the terminal in FIG. 1 may be a mobile phone, a tablet computer, or a computer with a wireless transceiver function.
  • the terminal can also be a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, and a smart grid.
  • VR virtual reality
  • AR augmented reality
  • Wireless terminals wireless terminals in smart cities, wireless terminals in smart homes, in-vehicle terminals, vehicles with vehicle-to-vehicle (V2V) communication capabilities, and smart connected vehicles , There are no restrictions on drones with UAV to UAV (U2U) communication capabilities.
  • V2V vehicle-to-vehicle
  • the access network element in Figure 1 can be any device with wireless transceiver function, which is mainly used to implement wireless physical control functions, resource scheduling and wireless resource management, wireless access control, and mobility management.
  • the network element of the access network may be a device that supports wired access or a device that supports wireless access.
  • the access network element may be an access network (access network, AN)/radio access network (RAN) device, which is composed of multiple 5G-AN/5G-RAN nodes.
  • 5G-AN/5G-RAN nodes can be: access point (AP), base station (nodeB, NB), enhanced base station (enhance nodeB, eNB), next-generation base station (NR nodeB, gNB), transmission and reception Point (transmission reception point, TRP), transmission point (transmission point, TP), or some other access node, etc.
  • AP access point
  • base station nodeB, NB
  • enhanced base station enhanced base station
  • NR nodeB, gNB next-generation base station
  • transmission and reception Point transmission reception point, TRP
  • transmission point transmission point
  • TP transmission point
  • the mobility management network element in Figure 1 is mainly responsible for user equipment access authentication, mobility management, and signaling interaction between various functional network elements, such as: user registration status, user connection status, user registration Network access, tracking area update, cell handover user authentication and key security are managed.
  • the session management network element in FIG. 1 can be called a session management function or a multicast/broadcast-service management function (MB-SMF) or a multicast session management network element, etc., without limitation.
  • the session management network element is mainly used to implement the user plane transmission logic channel, such as: session management functions such as the establishment, release, and modification of a packet data unit (PDU) session.
  • PDU packet data unit
  • the policy control network element in Fig. 1 can be used to provide policies for mobility management network elements and session management network elements, such as quality of service (quality of service) policies, and so on.
  • the user plane network element in Figure 1 may be called a PDU Session Anchor (PSF), a user plane function, or a multicast/broadcast user plane function (MB-UPF).
  • PPF PDU Session Anchor
  • MB-UPF multicast/broadcast user plane function
  • the user plane network element can be used as the anchor point on the user plane transmission logical channel, mainly used to complete the user plane data routing and forwarding functions, such as: establishing a channel with the terminal (that is, the user plane transmission logical channel), on the channel It forwards data packets between the terminal and the DN, and is responsible for the terminal's data message filtering, data forwarding, rate control, and charging information generation.
  • Multicast/broadcast (MB) service controller MB service controller
  • service management functions such as group management, security management, and service announcements.
  • the application function network element in Figure 1 is mainly an intermediate function entity that provides the interaction between the application server and the network element in the core network.
  • the application server can use it to realize dynamic control of network service quality and billing, guarantee SLA requirements, and obtain core Operation information of a certain network element in the network, etc.
  • the application function network element may be a functional entity deployed by an operator, or a functional entity deployed by a service provider.
  • the service provider may be a third-party service provider or an internal operator. Service providers are not restricted.
  • the data network DN in Figure 1 may be an operator network that provides data transmission services to users, for example, an operator network that provides IP multi-media services (IP multi-media service, IMS) to users.
  • IP multi-media service IP multi-media service, IMS
  • An application server may be deployed in the DN, and the application server may provide data transmission services to users.
  • the multiple terminals, at least one access network network element, and core network network element in the embodiments of the present application may all be one or more chips, or may be a system on chip (SOC), etc.
  • Fig. 1 is only an exemplary drawing, and the number of devices included therein is not limited.
  • the communication system may also include other equipment.
  • the name of each device and the naming of each link in Figure 1 are not limited.
  • each device and each link can also be named other names.
  • the network shown in Figure 1 may also include network slice selection network elements, network warehouse network elements, authentication service network elements, network storage network elements, network data analysis network elements, network open network elements, etc. No restrictions.
  • the network element or entity corresponding to the above-mentioned access network element may be the radio access network (RAN) in the 5G communication system.
  • RAN radio access network
  • the network element or entity corresponding to the mobility management network element can be the access and mobility management function (AMF) in the 5G communication system
  • the network element or entity corresponding to the session management network element can be
  • the session management function (SMF) and policy control network element in the 5G communication system can be the policy control function (PCF) in the 5G communication system
  • the network element or entity corresponding to the user plane network element can be
  • the network element corresponding to the application function network element or the entity can be the application function (AF) in the 5G communication system
  • the network slicing selection network element corresponding to The network element or entity can be the network slice selection function (NSSF) in the 5G communication system
  • the network element or entity corresponding to the network warehouse network element can be the network repository function (NRF) in the 5G communication system.
  • NRF network repository function
  • the network element or entity corresponding to the authentication service network element may be the authentication server function (AUSF) in the 5G communication system, and the network element or entity corresponding to the network storage network element may be the NRF in the 5G communication system Or unified data warehouse (unified data repository, UDR) or unified data management (unified data management, UDM), the network element or entity corresponding to the network data analysis network element can be the network data analysis function in the 5G communication system (network data analysis function) , NWDAF), the network element or entity corresponding to the network open network element may be the network exposure function (NEF) in the 5G communication system, and the network element or entity corresponding to the service control network element may be the service in the 5G communication system Control point (service control point, SCP), etc.
  • AUSF authentication server function
  • UDR unified data repository
  • UDM unified data management
  • the network element or entity corresponding to the network data analysis network element can be the network data analysis function in the 5G communication system (network data analysis function) , NWDAF)
  • the terminal communicates with the AMF through the next generation network (next generation, N)1 interface (N1)
  • the RAN device communicates with the AMF through the N2 interface (N2)
  • the RAN device communicates with the AMF through the N3 interface (N3 for short).
  • N1 next generation network
  • N2 next generation interface
  • N3 N3 for short
  • UPF UPF communicates with the application server in the DN through the N6 interface.
  • Core network elements can communicate with each other through service interfaces.
  • AMF can communicate with other core network elements through Namf interface
  • SMF can communicate with other core network elements through Nsmf interface
  • PCF can communicate with other core network elements through Npcf interface.
  • NSSF can communicate with other core network elements through the Nnssf interface
  • NEF can communicate with other core network elements through the Nnef interface
  • NRF can communicate with other core network elements through the Nnrf interface
  • UDM can communicate with other core network elements through the Nudr interface
  • NWDAF can communicate with other core network elements through the Nnwdaf interface
  • AUSF can communicate with other core network elements through the Nausf interface.
  • each terminal, access network network element, and core network network element may adopt the composition structure shown in FIG. 2, or include the components shown in FIG. 2.
  • 2 is a schematic diagram of the composition of a communication device 200 provided by an embodiment of the application.
  • the communication device 200 may be a terminal or a chip or a system on a chip in the terminal; it may also be an access network network element or an access network network element. Chip or system-on-chip; it can also be a core network element or a chip or system-on-chip in a core network element.
  • the communication device 200 includes a processor 201, a transceiver 202, and a communication line 203.
  • the communication device 200 may further include a memory 204.
  • the processor 201, the memory 204, and the transceiver 202 may be connected through a communication line 203.
  • the processor 201 is a central processing unit (CPU), a general-purpose processor network processor (network processor, NP), a digital signal processor (digital signal processing, DSP), a microprocessor, a microcontroller, Programmable logic device (PLD) or any combination of them.
  • the processor 201 may also be other devices with processing functions, such as circuits, devices, or software modules, without limitation.
  • the transceiver 202 is used to communicate with other devices or other communication networks.
  • the other communication network may be Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.
  • the transceiver 202 may be a module, a circuit, a transceiver, or any device capable of implementing communication.
  • the communication line 203 is used to transmit information between the components included in the communication device 200.
  • the memory 204 is used to store instructions. Among them, the instruction may be a computer program.
  • the memory 204 may be a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and/or instructions, and may also be a random access memory (RAM) or a random access memory (RAM).
  • RAM random access memory
  • RAM random access memory
  • RAM random access memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • CD- ROM compact disc read-only memory
  • optical disc storage including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.
  • the memory 204 may exist independently of the processor 201, or may be integrated with the processor 201.
  • the memory 204 may be used to store instructions or program codes or some data.
  • the memory 204 may be located in the communication device 200 or outside the communication device 200 without limitation.
  • the processor 201 is configured to execute instructions stored in the memory 204 to implement the communication method provided in the following embodiments of the present application.
  • the processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 2.
  • the communication device 200 includes multiple processors, for example, in addition to the processor 201 in FIG. 2, it may also include a processor 207.
  • the communication apparatus 200 further includes an output device 205 and an input device 206.
  • the input device 206 is a device such as a keyboard, a mouse, a microphone, or a joystick
  • the output device 205 is a device such as a display screen and a speaker.
  • the communication device 200 may be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system, or a device with a similar structure in FIG. 2.
  • the composition structure shown in FIG. 3 does not constitute a limitation on the communication device.
  • the communication device may include more or less components than those shown in the figure, or combine certain components. , Or different component arrangements.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the first terminal may be any terminal in the communication system
  • the relay node may be any terminal in the communication system that can connect
  • the service data is forwarded to the terminal of the access network network element
  • the first terminal and each relay node can correspond to the same access network network element
  • each relay node can also correspond to different access network network elements
  • the user plane network element can It is any user plane network element in the communication system.
  • the first terminal, the relay node, the access network network element, and the user plane network element described in the following embodiments may include the components shown in FIG. 2.
  • FIG. 3 is a flowchart of a communication method provided by an embodiment of the application.
  • the first terminal and at least one relay node of the first terminal may correspond to the same access network element.
  • the first terminal is UE1, and at least one relay node of the first terminal includes UE2, UE3, and UE4 as an example.
  • the PDU sessions established by UE1, UE2, UE3, and UE4 may correspond to the same access network. Element and the same user plane network element.
  • the method may include:
  • Step 301 The access network element obtains the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal.
  • the identification information of the first terminal may be used to identify the first terminal.
  • the identification information of the first terminal may be the identity information (ID) of the first terminal, the internet protocol (IP) address of the first terminal, and the media access control (MAC) address of the first terminal , International mobile subscriber identity (IMSI), globally unique temporary UE identity (GUTI), subscription permanent identifier (SUPI) or universal public user identifier of the first terminal (generic public subscription identifier, GPSI), etc., are not restricted.
  • the first terminal may use the following method (1) or method (2) to send the identification information of the first terminal to other terminals in the communication system in a broadcast form, such as a relay node, etc., which is not limited.
  • the above-mentioned relay node may be a terminal for forwarding the service data of the first terminal to the network element of the access network.
  • the identification information of the relay node can be the identity information of the relay node (for example: ID), the IP address of the relay node, the MAC address of the relay node, the IMSI, GUTI, SUPI or GPSI of the relay node, etc., without limitation .
  • the relay node can use the following method (1) or method (2) to send the identification information of the relay node to other terminals in the communication system, such as the first terminal, etc., which is not limited.
  • the QoS flow corresponding to the first terminal may be used to transmit service data of the first terminal.
  • the information of the QoS flow may include information such as the identification of the QoS flow, the transmission priority, the bandwidth, and the delay.
  • the identifier of a QoS flow can be the quality of service flow identity (QFI), allocation retention priority (ARP), or fifth-generation mobile networks quality of service. of service identifier, 5QI), etc., are not restricted. It should be noted that the information of the QoS flow can also be described as the context of the QoS flow.
  • the first terminal in order to meet the QoS requirements such as the transmission requirements of the service data of the first terminal, the first terminal may be associated with the QoS flow that supports the transmission of the service data of the first terminal, so that the access network element can
  • the received service data from the first terminal and/or the first terminal of the at least one relay node are aggregated on the same QoS flow and sent to the user plane network element.
  • the QoS flow may be the QoS flow corresponding to the PDU session established by the first terminal.
  • the QoS flow may be used to transmit the service data of the first terminal between the access network element and the user plane network element.
  • the QoS flow The QoS parameters meet the QoS requirements of the service data of the first terminal transmitted thereon.
  • the session management network element may establish a QoS flow corresponding to the first terminal when establishing the PDU session for the first terminal, and send information about the established QoS flow to the access network through the mobility management network element.
  • the session management network element modifies the PDU session, including modifying or increasing the QoS flow of the PDU session, so that the modified or increased QoS flow corresponds to the first terminal and meets the requirements of the first terminal QoS requirements such as the transmission requirements of the service data, and the information of the modified or increased QoS flow is sent to the access network network element through the mobility management network element.
  • the session management network element determines the QoS flow corresponding to the first terminal for the PDU session of the first terminal, and sends the QoS flow information to the access network network element through the mobility management network element.
  • the above QoS flow may also be a QoS flow corresponding to the PDU session established by the relay node, and the QoS flow may be used to transmit the service data of the first terminal between the access network element and the user plane network element,
  • the QoS parameters of the QoS flow meet the QoS requirements of the service data of the first terminal transmitted thereon.
  • the session management network element may establish a QoS flow corresponding to the first terminal when establishing a PDU session for the relay node, and send information about the established QoS flow to the access network network element through the mobility management network element Or, after the session management network element establishes a PDU session for the relay node, it modifies the PDU session, including modifying or increasing the QoS flow of the PDU session, so that the modified or increased QoS flow corresponds to the first terminal and meets the requirements of the first terminal QoS requirements such as service data transmission requirements, and the information of the modified or increased QoS flow is sent to the access network network element through the mobility management network element.
  • the session management network element determines the QoS flow corresponding to the first terminal for the PDU session of the relay node, and sends the QoS flow information to the access network network element through the mobility management network element, refer to the following Figure 5 The method shown.
  • the access network network element may receive the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the QoS flow corresponding to the first terminal from the session management network element through the mobility management network element. Information.
  • the session management network element may obtain the identification information of the first terminal and the identification information of at least one relay node of the first terminal, determine the QoS flow information corresponding to the first terminal according to the identification information of the first terminal, and combine the first terminal
  • the identification information of the terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal are carried in the same information, for example, the first information is sent to the access network element.
  • the session management network element may also carry the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal in at least one piece of information, such as the first information and
  • the second information is sent to the network element of the access network.
  • the first information may include identification information of the first terminal, identification information of the first relay node, and information of the QoS flow corresponding to the first terminal.
  • the second information may include identification information of the first terminal, identification information of the second relay node, and information of the QoS flow corresponding to the first terminal. It is understandable that when at least one relay node of the first terminal includes a third relay node, the access network element may also receive third information from the mobility management network element.
  • the relay node of a terminal includes a first relay node and a second relay node as an example for description.
  • the session management network element may obtain the identification information of UE1, the identification information of UE2, the identification information of UE3, and the identification information of UE4.
  • Identification information determine the information of the QoS flow corresponding to UE1 according to the identification information of UE1, and carry the identification information of UE1, the identification information of UE2, the identification information of UE3, the identification information of UE4, and the information of the QoS flow corresponding to UE1 in the first
  • the information is sent to the access network network element through the mobility management network element.
  • the session management network element can obtain the identification information of UE1, the identification information of UE2, and the identification information of UE3, determine the information of the QoS flow corresponding to UE1 according to the identification information of UE1, and send the second information to the access network element through the mobility management network element.
  • a message and a second message where the first message includes the identification information of UE1, the identification information of UE2, and the information of the QoS flow corresponding to UE1, and the second message includes the identification information of UE1, the identification information of UE3, and the QoS flow corresponding to UE1.
  • the session management network element when the session management network element sends the first information and the second information to the access network network element through the mobility management network element, if the session management network element has already sent the first information to the access network network element, The network element of the access network may determine the information of the QoS flow corresponding to the UE1 according to the first information.
  • the session management network element sends the second information to the access network network element, it can replace the information of the QoS flow corresponding to UE1 in the second information with the identification information of the QoS flow corresponding to UE1, so that the access network element can be based on the second information.
  • the identification information of the QoS flow corresponding to UE1 in the information and the QoS flow information corresponding to UE1 in the first information determine the information of the QoS flow corresponding to UE1 in the second information, thereby reducing the amount of information in the second information and reducing overhead.
  • the session management network element when the session management network element sends the first information and/or the second information to the access network network element through the mobility management network element, it can be sent in the form of an array, or in the form of a table or in other forms, and it is not allowed. limit.
  • the first information includes the identification information of UE1, the identification information of UE2, the identification information of UE3, the identification information of UE4, the information of the QoS flow corresponding to UE1, and the session
  • the management network element can send (the identification information of UE1, the identification information of UE2, the identification information of UE3, the identification information of UE4, the information of the QoS flow corresponding to UE1) to the access network element through the mobility management network element.
  • the example of sending the first information to the access network element in the form of a table.
  • the management network element can send the following Table 1 to the access network network element through the mobility management network element:
  • the access network element may save the first terminal.
  • Step 302 The network element of the access network receives the service data of the first terminal.
  • the service data of the first terminal may include the first service data sent by the first terminal to the access network element through a direct link, and may also include the first terminal forwarding to the access network element through at least one relay node
  • the business data of the first terminal may also be referred to as relay service data.
  • the access network element may receive the first service data from the first terminal through the PDU session of the first terminal, and/or receive the intermediate data from the at least one relay node through the PDU session of the at least one relay node. Following the business data. After the access network element receives the relay service data from at least one relay node through the PDU session of the at least one relay node, the access network element may determine the received data according to the corresponding relationship stored in step 301 above. After the service data is sent by the relay node of the first terminal, the relay service data is determined as the service data of the first terminal.
  • the relay service data may include the first relay service data and the second relay service data
  • the first relay service data is the first relay service data.
  • the service data of the first terminal forwarded by the node, and the second relay service data is the service data of the first terminal forwarded by the second relay node.
  • the access network element may also receive the third relay service data sent by the third relay node.
  • At least one relay node of the first terminal includes the first relay node.
  • the access network element may receive the first service data sent by the first terminal, and may also receive the first relay service data sent by the first relay node.
  • the network element of the access network may determine that the first relay node is the relay node of the first terminal according to the corresponding relationship stored in step 301. Furthermore, both the first service data and the first relay service data are determined as the service data of the first terminal.
  • At least one relay node of the first terminal includes a first relay node and a second relay node.
  • the access network element may receive the first relay service data sent by the first relay node, and may also receive the second relay service data sent by the second relay node.
  • the network element of the access network may determine that both the first relay node and the second relay node are relay nodes of the first terminal according to the corresponding relationship stored in step 301. Furthermore, both the first relay service data and the second relay service data are determined as the service data of the first terminal.
  • Step 303 The access network element sends the service data of the first terminal to the user plane network element through the QoS flow.
  • the access network element may determine the QoS flow corresponding to the first terminal according to the correspondence stored in step 301, aggregate the service data of the first terminal received in step 302, and send it to the QoS flow corresponding to the first terminal.
  • User plane network element may determine the QoS flow corresponding to the first terminal according to the correspondence stored in step 301, aggregate the service data of the first terminal received in step 302, and send it to the QoS flow corresponding to the first terminal.
  • the user plane network element may forward the service data of the first terminal to a corresponding application server, and the application server processes the service data of the first terminal.
  • the access network element can obtain the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal.
  • the access network element may send the service data of the first terminal sent by the first terminal.
  • the data and the service data of the first terminal sent by the relay node are aggregated and sent to the user plane network element through the QoS flow corresponding to the first terminal, thereby improving the utilization rate of transmission resources.
  • the first terminal may use any one of the following methods (1) to (2) to determine the identification information of at least one relay node of the first terminal, and relay The node may also use any of the following methods (1) to (2) to determine the identification information of the first terminal:
  • the first terminal may send a broadcast message (announcement message), where the broadcast message may include identification information of the first terminal.
  • the broadcast message may include identification information of the first terminal.
  • terminals other than the first terminal can determine whether to communicate with the first terminal according to their own network resources and other information. If a certain terminal determines to communicate with the first terminal, it may send a response message including its own identification information to the first terminal. After receiving the response message sent by at least one terminal, the first terminal may select some or all of the terminals as the relay node of the first terminal.
  • UE1 may send a broadcast message including the identification information of UE1.
  • UE2, UE3, UE4, and UE5 receive the broadcast message, they can determine whether to communicate with UE1 according to their own network resources and other information. Assuming that UE2, UE3, and UE4 determine to communicate with UE1, UE2 may send a response message including UE2's identification information to UE1, UE3 may send a response message including UE3's identification information to UE1, and UE4 may send UE1 including UE4's identification information.
  • Informational response message is assumed that UE2, UE3, and UE4 determine to communicate with UE1, UE2 may send a response message including UE2's identification information to UE1, UE3 may send a response message including UE3's identification information to UE1, and UE4 may send UE1 including UE4's identification information.
  • Informational response message may be used to send UE1 and other terminals including UE2, UE3, UE4, and
  • UE1 After UE1 receives the response message, it can select part or all of UE2, UE3, and UE4 as the relay node of UE1, that is, the relay node of UE1 can be UE2, or UE3, or UE4, or UE2 and UE3, Either UE2 and UE4, or UE3 and UE4, or UE2, UE3 and UE4.
  • the first terminal pre-stores the identification information of other terminals.
  • the first terminal can select some or all of the terminals from the pre-stored identification information of other terminals ⁇ identification information.
  • the first terminal may carry the identification information of the selected terminal in a broadcast message (solicitation message) and send it out, where the first terminal may send at least one broadcast message, and each broadcast message includes the identification information of a terminal, or the first terminal A broadcast message may be sent, and the broadcast message includes identification information of at least one terminal. If a terminal determines that the identification information carried in the broadcast message matches its own identification information after receiving a broadcast message, it can determine whether to communicate with the first terminal according to its own network resources and other information. If it is determined to communicate with the first terminal, The terminal may send a response message to the first terminal. After receiving the response message sent by at least one terminal, the first terminal may select some or all of the terminals as the relay node of the first terminal.
  • UE1 pre-stores the identification information of UE2, the identification information of UE3, the identification information of UE4 and the identification information of UE5.
  • UE1 needs to access the network through a relay node, it can select part or all of the identification information from the identification information of UE2, the identification information of UE3, the identification information of UE4, and the identification information of UE5.
  • the identification information selected by UE1 includes the identification information of UE2, the identification information of UE3, and the identification information of UE4, UE1 can send broadcast message 1, broadcast message 2, and broadcast message 3.
  • broadcast message 1 includes UE2 identification information.
  • broadcast message 3 includes the identification information of UE4.
  • UE2 receives broadcast message 1, it determines that the identification information in broadcast message 1 matches its own identification information.
  • UE3 receives broadcast message 2, it determines that the identification information in broadcast message 2 matches its own identification information, and UE4 receives broadcast message 3.
  • UE2, UE3, and UE4 can determine whether to communicate with UE1 according to their own network resources and other information. Assuming that UE2 and UE3 determine to communicate with UE1, UE2 can send a response message to UE1, and UE3 can send a response message to UE1.
  • UE1 may select part or all of UE2 and UE3 as the relay node of UE1, that is, the relay node of UE1 may be UE2, or UE3, or UE2 and UE3.
  • the terminal determines that the identification information carried in the broadcast message matches its own identification information may be: the terminal determines that the identification information carried in the broadcast message is the same or corresponds to its own identification information, or the terminal determines that the broadcast message carries The identification information of, including its own identification information, etc., is not restricted.
  • step 301a the embodiment of the present application further includes the following step 301a:
  • Step 301a The session management network element obtains the identification information of the first terminal and the identification information of at least one relay node of the first terminal.
  • the session management network element may receive the identification information of the first terminal from the first terminal and the identification information of at least one relay node of the first terminal through the mobility management network element; and/or the session management network element may The sexual management network element receives the identification information of the first terminal and the identification information of the relay node from at least one relay node.
  • the session management network element may pass a piece of information
  • the identification information of the first terminal and the identification information of at least one relay node of the first terminal sent by the first terminal are received, and the identification information of the first terminal and the identification information of the first terminal sent by the first terminal can also be received through multiple pieces of information.
  • the identification information of a relay node may pass a piece of information
  • the session management network element may receive the identification information of UE1 and the identification of UE2 sent by UE1 through the mobility management network element.
  • Information, the identification information of UE3 and the identification information of UE4 it is also possible to receive the identification information of UE1 and UE2 sent by UE1 through the mobility management network element, and then receive the identification information of UE1 sent by UE1 through the mobility management network element , UE3's identification information and UE4's identification information.
  • the session management network element can receive the identification information of UE1 and the identification information of UE2 sent by UE2 through the mobility management network element; it can also receive the identification information of UE1 and the identification information of UE3 sent by UE3 through the mobility management network element; The mobility management network element receives the identification information of UE1 and the identification information of UE4 sent by UE4.
  • the session management network element when the session management network element receives the identification information of the first terminal and the identification information of at least one relay node of the first terminal sent by the first terminal and/or the relay node through the mobility management network element, it may receive Information in the form of an array can also receive information in the form of a table or other forms of information, without limitation.
  • UE1 needs to send the identification information of UE1, the identification information of UE2, the identification information of UE3, and the identification information of UE4 to the session management network element through the mobility management network element.
  • the session management network element can be managed through mobility The network element receives (identification information of UE1, identification information of UE2, identification information of UE3, identification information of UE4) sent by UE1.
  • the session management network element can receive the following Table 2 sent by UE1 through the mobility management network element:
  • UE1's identification information UE2's identification information, UE3's identification information, UE4's identification information
  • FIG. 4 is a flowchart of a communication method provided by an embodiment of the application, and the method includes:
  • Step 401 The first terminal sends the identification information of the first terminal and the identification information of at least one relay node of the first terminal to the session management network element through the mobility management network element.
  • the session management network element receives the identification information of the first terminal and the identification information of at least one relay node of the first terminal.
  • the first terminal sends a PDU session establishment request carrying identification information of the first terminal and identification information of at least one relay node of the first terminal to the session management network element through the mobility management network element.
  • the PDU session establishment request is used to request the establishment of a PDU session corresponding to at least one relay node of the first terminal for the first terminal.
  • the first terminal sends a PDU session modification request carrying identification information of the first terminal and identification information of at least one relay node of the first terminal to the session management network element through the mobility management network element.
  • the PDU session modification request is used to request the transmission of the service data of the first terminal forwarded by at least one relay node of the first terminal through the PDU session established by the first terminal.
  • step 401 refers to the foregoing step 301a, which will not be repeated.
  • Step 402 The session management network element sends a request message to the policy control network element.
  • the policy control network element receives the request message.
  • the request message may be used to request to obtain the policy information of the first terminal, and the request message may include the session identifier, the identification information of the first terminal, and the identification information of at least one relay node of the first terminal.
  • the request message may be a session management policy establishment request (SM policy establishment request).
  • SM policy establishment request For example, when the session management network element receives the PDU session establishment request sent by the first terminal through the mobility management network element, the session management network element sends a SM policy establishment request to the policy control network element.
  • the request message may be a session management policy modification request (SM policy modification request).
  • SM policy modification request session management policy modification request
  • the session management network element receives the PDU session modification request sent by the first terminal through the mobility management network element, the session management network element sends an SM policy modification request to the policy control network element.
  • Step 403 The policy control network element sends the policy information to the session management network element.
  • the session management network element receives the policy information.
  • the policy information may be a policy and charging control rule (policy and charging control rule, PCC rule).
  • the policy information may be carried in the session management policy establishment response (SM policy establishment response).
  • the policy information may be carried in the session management policy modification response (SM policy modification response).
  • Step 404 The session management network element determines the QoS flow corresponding to the first terminal according to the policy information.
  • the session management network element may create a new QoS flow for the first terminal according to the policy information, or may modify an existing QoS flow to obtain the QoS flow corresponding to the first terminal, without limitation.
  • Step 405 The session management network element sends the identification information of the first terminal and the information of the QoS flow corresponding to the first terminal to the user plane network element.
  • the user plane network element receives the identification information of the first terminal and the information of the QoS flow corresponding to the first terminal.
  • the session management network element receives the location information of the first terminal sent by the first terminal through the mobility management network element, and determines the user plane network element corresponding to the PDU session of the first terminal according to the location information of the first terminal.
  • the session management network element sends N4 configuration information to the user plane network element.
  • the user plane network element receives the N4 configuration information.
  • the N4 configuration information may be an N4 session establishment (session establishment) request message or an N4 session modification (session modification) message.
  • the N4 configuration information may include the identification information of the first terminal, the information of the QoS flow corresponding to the first terminal, and may also include some existing information, such as the processing strategy corresponding to the service data, the packet detection rule (PDR), and the PDR
  • the associated forwarding action rule (FAR), quality of service flow (QoS flow, QF) mapping rule and other information are not limited, and the relevant description of these information can refer to the prior art and will not be repeated.
  • the user plane network element when the user plane network element receives the N4 session establishment request message sent by the session management network element, the user plane network element sends an N4 session establishment request response to the session management network element, where the N4 session establishment request response includes the user plane Network element tunnel information.
  • the user plane network element when the user plane network element receives the service data through the QoS flow corresponding to the first terminal, it may be determined to receive the service data according to the identification information of the first terminal and the information of the QoS flow corresponding to the first terminal sent by the session management network element.
  • the service data of is the service data of the first terminal.
  • Step 406 The session management network element sends the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal to the access network network element through the mobility management network element.
  • the access network element receives the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal.
  • the session management network element sends an N1N2 information transfer message to the mobility management network element.
  • the mobility management network element receives the N1N2 information transfer message.
  • the N1N2 information transfer message includes identification information of the first terminal, identification information of at least one relay node of the first terminal, and QoS flow information corresponding to the first terminal.
  • the mobility management network element sends an N2 session request to the access network network element.
  • the access network element receives the N2 session request.
  • the N2 session request includes identification information of the first terminal, identification information of at least one relay node of the first terminal, and QoS flow information corresponding to the first terminal.
  • the session management network element further sends the user plane network element tunnel information to the access network network element through the mobility management network element.
  • the session management network element also receives the access network network element tunnel information sent by the access network network element through the mobility management network element, and sends the received access network network element tunnel information to the user plane network element to facilitate access to the network
  • the network element establishes a connection with the user plane network element.
  • the specific description of the identification information of the first terminal received by the access network element in step 406, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal may refer to the above Step 301 will not be repeated.
  • Step 407 The access network element configures the first terminal and/or at least one of the first terminal and/or at least one according to the identification information of the first terminal, the identification information of the at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal.
  • the access network element configures the first terminal and/or at least one of the first terminal and/or at least one according to the identification information of the first terminal, the identification information of the at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal.
  • the access network element may receive the service data of the first terminal sent by the first terminal through the data link between the access network element and the first terminal, and the access network element may also communicate with the first terminal through the access network element.
  • the data link between the relay nodes receives the service data of the first terminal forwarded by the relay node.
  • Step 408 The network element of the access network receives the service data of the first terminal.
  • the access network element may adopt the following step 408a and/or step 408b to receive the service data of the first terminal.
  • Step 408a The access network element receives the service data of the first terminal sent by the first terminal.
  • Step 408b The access network element receives the service data of the first terminal forwarded by each relay node.
  • step 408a and step 408b reference may be made to the foregoing step 302, which will not be repeated.
  • Step 409 The access network element aggregates the service data of the first terminal and sends it to the user plane network element through the QoS flow corresponding to the first terminal.
  • the user plane network element receives the service data of the first terminal.
  • step 409 refers to the foregoing step 303 for details, and will not be repeated.
  • Step 410 The user plane network element sends the service data of the first terminal to the application function network element.
  • the access network element may, according to the received identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the first terminal, the first terminal
  • the service data of the first terminal sent by the terminal and/or each relay node is aggregated
  • the service data of the first terminal is sent to the user plane network element through the QoS flow corresponding to the first terminal, so that the network side device can communicate with the first terminal.
  • the service data is aggregated, and the service data of the first terminal is transmitted through the same transmission path, which improves the utilization rate of transmission resources.
  • the QoS flow corresponding to the first terminal is determined for the PDU session established by the session management network element for the relay node, and the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the first terminal are determined.
  • the process of sending the QoS flow information corresponding to a terminal to the access network element is described in detail.
  • Fig. 5 is a flowchart of a communication method provided by an embodiment of the application, and the method includes:
  • Step 501 The relay node sends the identification information of the first terminal and the identification information of the relay node to the session management network element through the mobility management network element.
  • the session management network element receives the identification information of the first terminal and the identification information of the relay node.
  • the relay node sends a PDU session establishment request carrying the identification information of the first terminal and the identification information of the relay node to the session management network element through the mobility management network element.
  • the PDU session establishment request is used to request the establishment of a PDU session corresponding to the first terminal for the relay node.
  • the relay node sends a PDU session modification request carrying the identification information of the first terminal and the identification information of the relay node to the session management network element through the mobility management network element.
  • the PDU session modification request is used to request the transmission of the service data of the first terminal through the PDU session established by the relay node.
  • step 501 refers to the foregoing step 301a, which will not be repeated.
  • Step 502 The session management network element sends a request message to the policy control network element.
  • the policy control network element receives the request message.
  • the request message may be used to request to obtain the policy information of the relay node, and the request message may include the session identifier, the identifier of the first terminal, and the identifier information of the relay node.
  • the request message may be a session management policy establishment request (SM policy establishment request).
  • SM policy establishment request For example, when the session management network element receives the PDU session establishment request sent by the relay node through the mobility management network element, it sends an SM policy establishment request to the policy control network element.
  • the request message may be a session management policy modification request (SM policy modification request).
  • SM policy modification request session management policy modification request
  • the session management network element receives the PDU session modification request sent by the relay node through the mobility management network element, it sends an SM policy modification request to the policy control network element.
  • Step 503 The policy control network element sends policy information to the session management network element.
  • the session management network element receives the policy information.
  • step 503 refers to the above step 403, which will not be repeated.
  • Step 504 The session management network element determines the QoS flow corresponding to the first terminal according to the policy information.
  • step 504 refers to the above step 404, which will not be repeated.
  • the session management network element determines the QoS flow corresponding to the first terminal for the PDU session of each relay node, if the session management network element has determined the QoS flow corresponding to the first terminal for the PDU session of one of the relay nodes QoS flow, when the session management network element determines the QoS flow corresponding to the first terminal for the PDU session of other relay nodes, it may determine the previously determined QoS flow of the first terminal as the PDU session corresponding to the other relay node
  • the QoS flow enables the access network network element to aggregate the service data of the first terminal into the QoS flow and send it to the user plane network element.
  • QoS flow 1 may be determined as the QoS flow corresponding to the first terminal in the PDU session of the second relay node.
  • Step 505 The session management network element sends the identification information of the first terminal and the information of the QoS flow corresponding to the first terminal to the user plane network element.
  • the user plane network element receives the identification information of the first terminal and the information of the QoS flow corresponding to the first terminal.
  • the session management network element receives the location information of the first terminal sent by the relay node through the mobility management network element, and determines the user plane network element corresponding to the PDU session of the first terminal according to the location information of the first terminal.
  • step 505 For the specific description of step 505, refer to the foregoing step 405, which will not be repeated.
  • the session management network element may change the previous QoS flow when determining the QoS flow corresponding to the first terminal for other relay nodes.
  • the determined QoS flow of the first terminal is determined as the QoS flow corresponding to the first terminal corresponding to the PDU session of the other relay node.
  • Step 506 The session management network element sends the identification information of the first terminal, the identification information of the relay node, and the information of the QoS flow corresponding to the first terminal to the access network network element through the mobility management network element.
  • the access network element receives the identification information of the first terminal, the identification information of the relay node, and the information of the QoS flow corresponding to the first terminal.
  • step 506 refers to the foregoing step 406, which will not be repeated.
  • Step 507 The access network element configures a data link with the first terminal and/or the relay node according to the identification information of the first terminal, the identification information of the relay node, and the information of the QoS flow corresponding to the first terminal.
  • the access network element may receive the service data of the first terminal sent by the first terminal through the data link between the access network element and the first terminal, and the access network element may also communicate with the first terminal through the access network element.
  • the data link between the relay nodes receives the service data of the first terminal forwarded by the relay node.
  • steps 501-507 can be used to establish a PDU session for each relay node of the first terminal to support forwarding the service data of the first terminal, and configure the data between each relay node and the access network element link.
  • Step 508 The network element of the access network receives the service data of the first terminal.
  • the access network element may adopt the following step 508a and/or step 508b to receive the service data of the first terminal.
  • Step 508a The access network element receives the service data of the first terminal sent by the first terminal.
  • Step 508b The access network element receives the service data of the first terminal forwarded by each relay node.
  • step 508a and step 508b reference may be made to the foregoing step 302, which will not be repeated.
  • Step 509 The access network element aggregates the service data of the first terminal and sends it to the user plane network element through the QoS flow corresponding to the first terminal.
  • the user plane network element receives the service data of the first terminal.
  • step 509 refers to the foregoing step 303 for details, and will not be repeated.
  • Step 510 The user plane network element sends the service data of the first terminal to the application function network element.
  • the access network element can, according to the received identification information of the first terminal, the identification information of the relay node, and the information of the QoS flow corresponding to the first terminal, combine the first terminal and/or each Following the aggregation of the service data of the first terminal sent by the node, the service data of the first terminal is sent to the user plane network element through the QoS flow corresponding to the first terminal, so as to realize the aggregation of the service data of the first terminal by the network side device, and pass The same transmission path transmits the service data of the first terminal, which improves the utilization rate of transmission resources.
  • the access network network element aggregates the service data of the first terminal through the first terminal
  • the corresponding QoS flow is sent to the communication method of the user plane network element.
  • the user plane network element can use the following methods shown in Figure 6 to Figure 8 to aggregate the service data of the first terminal. And send the aggregated service data of the first terminal to the application server.
  • FIG. 6 is a communication method provided by an embodiment of the application.
  • each relay node of the first terminal may correspond to different access network network elements.
  • the PDU session established by UE2 may correspond to that established by access network element 1, UE3 and UE4.
  • the PDU session may correspond to the network element 2 of the access network.
  • the session management network element when the session management network element establishes a PDU session for each relay node, it can determine the user plane network element that can provide PDU session services for each relay node at the same time according to the location information of each relay node, so that The user plane network element may receive the service data of the first terminal forwarded by each relay node through the PDU session.
  • the method may include:
  • Step 601 The user plane network element obtains the identification information of the first terminal, the identification information of the relay node, and the information of the QoS flow corresponding to the relay node.
  • the relay node in order to meet the QoS requirements such as the transmission requirements of the service data of the first terminal, the relay node can be associated with the QoS flow that supports the transmission of the service data of the first terminal, so that the access network element can The received service data of the first terminal from the relay node is sent to the user plane network element through the QoS flow corresponding to the relay node.
  • the QoS flow corresponding to the relay node may be the QoS flow determined by the relay node when the session management network element establishes a PDU session for the first terminal, that is, the PDU session established by the session management network element for the first terminal It can correspond to multiple QoS flows.
  • the QoS flow can be used to transmit the service data of the first terminal between the access network element and the user plane network element.
  • the QoS parameters of the QoS flow meet the service data of the first terminal transmitted on it. QoS requirements.
  • the session management network element may establish a QoS flow corresponding to the relay node when establishing the PDU session for the first terminal, and send the established QoS flow information corresponding to the relay node to the user plane network element;
  • the session management network element modifies the PDU session, including modifying or adding the QoS flow of the PDU session, so that the modified or increased QoS flow corresponds to the relay node, and meets the requirements of the first terminal’s service Data transmission requirements and other QoS requirements, and send the QoS flow information corresponding to the modified or added relay node to the user plane network element.
  • the process of determining the QoS flow corresponding to the relay node for the PDU session of the first terminal by the session management network element and sending the information of the QoS flow corresponding to the relay node to the user plane network element can be referred to as shown in Figure 7 below. method.
  • the above QoS flow may also be a QoS flow corresponding to the PDU session established by the relay node, and the QoS flow may be used to transmit the service data of the first terminal between the access network element and the user plane network element,
  • the QoS parameters of the QoS flow meet the QoS requirements of the service data of the first terminal transmitted thereon.
  • the session management network element may establish a QoS flow corresponding to the relay node when establishing a PDU session for the relay node, and send the established QoS flow information corresponding to the relay node to the user plane network element; or After the session management network element establishes a PDU session for the relay node, it modifies the PDU session, including modifying or increasing the QoS flow of the PDU session, so that the modified or increased QoS flow corresponds to the relay node and meets the service data of the first terminal QoS requirements such as transmission requirements and other QoS requirements, and send the information of the QoS flow corresponding to the modified or added relay node to the user plane network element.
  • the session management network element determines the QoS flow corresponding to the relay node for the PDU session of the relay node, and sends the information of the QoS flow corresponding to the relay node to the user plane network element, refer to the following Figure 8 method.
  • the session management network element may obtain the identification information of the first terminal and the identification information of at least one relay node of the first terminal, determine the QoS flow information corresponding to the relay node according to the identification information of the relay node, and The identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the relay node are carried in the same information, for example, the first information is sent to the user plane network element.
  • the session management network element may also carry the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the relay node in at least one piece of information, such as the first information and
  • the second information is sent to the user plane network element.
  • the first information may include identification information of the first terminal, identification information of the first relay node, and information of the QoS flow corresponding to the first relay node.
  • the second information may include identification information of the first terminal, identification information of the second relay node, and information of the QoS flow corresponding to the first relay node.
  • the user plane network element may also receive third information from the session management network element.
  • the user plane network element may also receive third information from the session management network element.
  • the relay node includes the first relay node and the second relay node as an example for description.
  • the session management network element For the session management network element to obtain the identification information of the first terminal and the identification information of at least one relay node of the first terminal, reference may be made to the foregoing step 301a, which will not be described in detail.
  • the session management network element may obtain the identification information of UE1, the identification information of UE2, the identification information of UE3, and the identification information of UE4.
  • the identification information determines the information of the QoS flow corresponding to UE2 according to the identification information of UE2; the information of the QoS flow corresponding to UE3 is determined according to the identification information of UE3; the information of the QoS flow corresponding to UE4 is determined according to the identification information of UE4; and the identification of UE1 is determined.
  • the identification information of UE2, the identification information of UE3, the identification information of UE4, the information of the QoS flow corresponding to UE2, the information of the QoS flow corresponding to UE3, and the information of the QoS flow corresponding to UE4 are sent as the first information to the user plane network element , So that the user plane network element associates the QoS flow corresponding to each relay node with the first terminal according to the first information.
  • the session management network element can obtain the identification information of UE1, the identification information of UE2, and the identification information of UE3, and determine the information of the QoS flow corresponding to UE2 according to the identification information of UE2; determine the information of the QoS flow corresponding to UE3 according to the identification information of UE3; and
  • the identification information of UE1, the identification information of UE2, and the information of the QoS flow corresponding to UE2 are used as the first information, and the identification information of UE1, the identification information of UE3, and the information of the QoS flow corresponding to UE3 are sent to the user plane network as the second information.
  • the user plane network element associates the QoS flow corresponding to each relay node with the first terminal according to the first information and the second information.
  • Step 602 The user plane network element receives the service data of the first terminal through the QoS flow.
  • the user plane network element can receive the service data sent by each access network network element through each QoS flow, and the user plane network element can determine whether each QoS flow is associated with the first terminal.
  • the service data is determined to be the service data of the first terminal.
  • the relay node of the first terminal includes a first relay node and a second relay node, and the first relay node corresponds to the first QoS flow, and the second relay node corresponds to the second QoS flow as an example.
  • the user plane network element may receive the first relay service data through the first QoS flow, and receive the second relay service data through the second QoS flow.
  • the user plane network element determines that the first QoS flow and the second QoS flow are both associated with the first terminal according to the received identification information of at least one relay node of the first terminal and the information of the QoS flow corresponding to the relay node.
  • the first relay service data and the second relay service data are determined as the service data of the first terminal.
  • Step 603 The user plane network element aggregates the service data of the first terminal and sends it to the application server.
  • the user plane network element may use the above step 602 to determine the received relay service data sent by each relay node as the service data of the first terminal, and aggregate the various relay service data to send to the application server. In this way, the user plane network element is used to realize the aggregation of the service data of the first terminal by the network side device and transmit it through the same transmission path, which improves the utilization rate of transmission resources.
  • the session management network element may use any one of the following methods 1 to 2 to determine the QoS flow corresponding to the relay node:
  • Manner 1 Relay nodes corresponding to the same access network network element correspond to the same QoS flow, and relay nodes corresponding to different access network network elements correspond to different QoS flows.
  • the session management network element can set the relay corresponding to the same access network element when establishing PDU sessions for different relay nodes. Nodes correspond to the same QoS flow, and relay nodes corresponding to different access network elements correspond to different QoS flows.
  • the first terminal is UE1, at least one relay node of UE1 includes UE2, UE3, and UE4, and UE2 corresponds to access network element 1, and UE3 and UE4 correspond to access network element 2 as
  • the method shown in Figure 3 to Figure 5 can be used to map UE2 to QoS flow 1
  • the method shown in Figure 3 to Figure 5 can be used to map UE3 and UE4 to QoS flow 2.
  • the access network element 1 receives the service data of UE1 forwarded by UE2, it is forwarded to the user plane network element through QoS flow 1.
  • the access network element 2 receives the service data of UE1 forwarded by UE3 and UE4, it aggregates the service data of UE1 and sends it to the user plane network element through QoS flow 2.
  • Method 2 Different relay nodes correspond to different QoS flows.
  • each relay node of the first terminal can correspond to different access network network elements, when the session management network element establishes PDU sessions for different relay nodes, different relay nodes can correspond to different QoS flows.
  • the first terminal is UE1, at least one relay node of UE1 includes UE2, UE3, and UE4, and UE2 corresponds to access network element 1, and UE3 and UE4 correspond to access network element 2 as
  • UE2 when establishing a PDU session for UE2, UE3, and UE4, UE2 can be mapped to QoS flow 1, UE3 to QoS flow 2, and UE4 to QoS flow 3.
  • the access network element 1 receives the service data of UE1 forwarded by UE2, it is forwarded to the user plane network element through QoS flow 1.
  • the access network element 2 After the access network element 2 receives the service data of UE1 forwarded by UE3, it is forwarded to the user plane network element through QoS flow 2. After the access network element 2 receives the service data of UE1 forwarded by UE4, it is forwarded to the user plane network element through QoS flow 3.
  • FIG. 7 is a flowchart of a communication method provided by an embodiment of the application, and the method includes:
  • Step 701 The first terminal sends identification information of the first terminal and identification information of at least one relay node of the first terminal to the session management network element through the mobility management network element.
  • the session management network element receives the identification information of the first terminal and the identification information of at least one relay node of the first terminal.
  • step 701 refers to the above step 401, which will not be repeated.
  • Step 702 The session management network element sends a request message to the policy control network element.
  • the policy control network element receives the request message.
  • step 702 refers to the foregoing step 402, which will not be repeated.
  • Step 703 The policy control network element sends the policy information to the session management network element.
  • the session management network element receives the policy information.
  • step 703 Specifically, for the specific description of step 703, refer to the above step 403, which will not be repeated.
  • Step 704 The session management network element determines the QoS flow corresponding to each relay node according to the policy information.
  • the session management network element may create a new QoS flow for each relay node according to the policy information, or may modify an existing QoS flow to obtain a QoS flow corresponding to each relay node, without limitation.
  • Step 705 The session management network element sends identification information of the first terminal, identification information of at least one relay node of the first terminal, and QoS flow information corresponding to each relay node to the user plane network element.
  • the user plane network element receives identification information of the first terminal, identification information of at least one relay node of the first terminal, and QoS flow information corresponding to each relay node.
  • the session management network element determines the user plane network element corresponding to the PDU session of the first terminal according to the location information of each relay node.
  • the session management network element sends N4 configuration information to the user plane network element.
  • the user plane network element receives the N4 configuration information.
  • the N4 configuration information may be an N4 session establishment request message or an N4 session modification message.
  • the N4 configuration information may include the identification information of the first terminal, the identification information of at least one relay node of the first terminal, the information of the QoS flow corresponding to each relay node, and may also include some existing information, such as processing corresponding to service data.
  • Policies, packet detection rules (PDR), forwarding action rules (FAR) associated with PDR, quality of service flow (QoS flow, QF) mapping rules, and other information are not restricted. These information are related The description can refer to the prior art and will not be repeated.
  • step 705 refers to the above step 601, which will not be repeated.
  • Step 706 The session management network element sends the identification information of the first terminal, the identification information of the relay node, and the information of the QoS flow corresponding to the relay node to the access network network element corresponding to each relay node through the mobility management network element.
  • the access network element receives the identification information of the first terminal, the identification information of the relay node, and the information of the QoS flow corresponding to the relay node.
  • At least one relay node of the first terminal includes a first relay node and a second relay node, and the first relay node corresponds to the first access network element, and the second relay node corresponds to the second access network element.
  • step 706 includes the following steps 706a and 706b.
  • Step 706a The session management network element sends the identification information of the first terminal, the identification information of the first relay node, and the information of the QoS flow corresponding to the first relay node to the first access network network element through the mobility management network element.
  • Step 706b The session management network element sends the identification information of the first terminal, the identification information of the second relay node, and the information of the QoS flow corresponding to the second relay node to the second access network network element through the mobility management network element.
  • step 706 reference may be made to the specific description of step 406 above, which will not be repeated.
  • Step 707 The access network element configures a data link with the first terminal and/or the relay node according to the identification information of the first terminal, the identification information of the relay node, and the information of the QoS flow corresponding to the relay node.
  • step 707 may also include step 707a and step 707b.
  • Step 707a The network element of the first access network may configure a data link with the first terminal and/or the first relay node.
  • Step 707b The network element of the second access network may configure a data link with the first terminal and/or the second relay node.
  • step 707 refers to the above step 407, which will not be repeated.
  • Step 708 The network element of the access network receives the service data of the first terminal.
  • step 708 may also include the following steps 708a and 708b.
  • Step 708a The first access network network element receives the service data of the first terminal sent by the first terminal and/or the first relay node.
  • Step 708b The second access network network element receives the service data of the first terminal sent by the first terminal and/or the second relay node.
  • step 708 For the specific description of step 708, reference may be made to the above step 408, which will not be repeated.
  • Step 709 The access network element aggregates the service data of the first terminal and sends it to the user plane network element through the QoS flow corresponding to the first terminal.
  • the user plane network element receives the service data of the first terminal.
  • step 709 may also include the following steps 709a and 709b.
  • Step 709a The first access network element sends the service data of the first terminal to the user plane network element through the QoS flow corresponding to the first relay node.
  • Step 709b The second access network network element sends the service data of the first terminal to the user plane network element through the QoS flow corresponding to the second relay node.
  • step 709 refers to the foregoing step 602 for details, which will not be repeated.
  • Step 710 The user plane network element aggregates the service data of the first terminal and sends it to the application function network element.
  • step 710 For the specific description of step 710, refer to the foregoing step 603, which will not be repeated.
  • the user plane network element may, according to the received identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the relay node, transfer the first terminal And/or the service data of the first terminal sent by each relay node is aggregated and sent to the application server element to realize the aggregation of the service data of the first terminal by the network side device, and transmit the service data of the first terminal through the same transmission path , Improve the utilization of transmission resources.
  • the PDU session established by the session management network element for the relay node determines the QoS flow corresponding to the relay node, and combines the identification information of the first terminal, the identification information of the relay node, and the QoS flow corresponding to the relay node.
  • the process of sending the information to the user plane network element is described in detail.
  • FIG. 8 is a flowchart of a communication method provided by an embodiment of this application, and the method includes:
  • Step 801 The relay node sends the identification information of the first terminal and the identification information of the relay node to the session management network element through the mobility management network element.
  • the session management network element receives the identification information of the first terminal and the identification information of the relay node.
  • step 801 It may include the following steps 801a and 801b.
  • Step 801a The first relay node sends the identification information of the first terminal and the identification information of the first relay node to the session management network element through the mobility management network element.
  • Step 801b The second relay node sends the identification information of the first terminal and the identification information of the second relay node to the session management network element through the mobility management network element.
  • step 801 For the specific description of step 801, reference may be made to the above step 501, which will not be repeated.
  • Step 802 The session management network element sends a request message to the policy control network element.
  • the policy control network element receives the request message.
  • step 802 Specifically, for the specific description of step 802, reference may be made to the above step 502, which will not be repeated.
  • Step 803 The policy control network element sends the policy information to the session management network element.
  • the session management network element receives the policy information.
  • step 803 For the specific description of step 803, refer to the foregoing step 503, which will not be repeated.
  • Step 804 The session management network element determines the QoS flow corresponding to the relay node according to the policy information.
  • step 804 can refer to the above step 704, which is not limited.
  • the session management network element when the session management network element establishes a PDU session for each relay node, it can determine the QoS flow corresponding to the relay node for the relay node according to the above steps 801 to 804.
  • the session management network element determines the QoS flow corresponding to the relay node for the PDU session of each relay node, if the session management network element has determined the first terminal corresponding to the PDU session of one of the relay nodes QoS flow, when the session management network element determines the QoS flow corresponding to the relay node for the PDU session of other relay nodes corresponding to the same access network element of the relay node, it can determine the previously determined QoS flow as The QoS flow corresponding to the PDU session of the other relay node allows the access network element to aggregate the service data of the first terminal into the same QoS flow and send it to the user plane network element.
  • the session management network element determines that the QoS flow corresponding to the first terminal is QoS flow 1 for the PDU session of the first relay node.
  • QoS flow 1 may be determined as the QoS flow corresponding to the first terminal in the PDU session of the second relay node.
  • Step 805 The session management network element sends the identification information of the first terminal, the identification information of the relay node, and the information of the QoS flow corresponding to the relay node to the user plane network element.
  • the user plane network element receives the identification information of the first terminal, the identification information of the relay node, and the information of the QoS flow corresponding to the relay node.
  • step 805 For the specific description of step 805, refer to the foregoing step 705, which will not be repeated.
  • Step 806 The session management network element sends the identification information of the first terminal, the identification information of the relay node, and the information of the QoS flow corresponding to the relay node to the access network network element through the mobility management network element.
  • the access network element receives the identification information of the first terminal, the identification information of the relay node, and the information of the QoS flow corresponding to the relay node.
  • step 806 may include the following steps 806a and 806b.
  • Step 806a The session management network element sends the identification information of the first terminal, the identification information of the first relay node, and the information of the QoS flow corresponding to the first relay node to the first access network network element through the mobility management network element.
  • Step 806b The session management network element sends the identification information of the first terminal, the identification information of the second relay node, and the information of the QoS flow corresponding to the second relay node to the second access network network element through the mobility management network element.
  • step 806 refers to the above step 706, which will not be repeated.
  • Step 807 The access network element configures a data link with the first terminal and/or the relay node according to the identification information of the first terminal, the identification information of the relay node, and the information of the QoS flow corresponding to the relay node.
  • step 807 may also include step 807a and step 807b.
  • Step 807a The network element of the first access network may configure a data link with the first terminal and/or the first relay node.
  • Step 807b The network element of the second access network may configure a data link with the first terminal and/or the second relay node.
  • step 807 refers to the above step 707, which will not be repeated.
  • Step 808 The network element of the access network receives the service data of the first terminal.
  • step 808 may also include the following steps 808a and 808b.
  • Step 808a The first access network network element receives the service data of the first terminal sent by the first terminal and/or the first relay node.
  • Step 808b The second access network network element receives the service data of the first terminal sent by the first terminal and/or the second relay node.
  • step 808 reference may be made to the above step 708, which will not be repeated.
  • Step 809 After the access network element aggregates the service data of the first terminal, it is sent to the user plane network element through the QoS flow corresponding to the first terminal. Correspondingly, the user plane network element receives the service data of the first terminal.
  • step 809 may also include the following steps 809a and 809b.
  • Step 809a The first access network element sends the service data of the first terminal to the user plane network element through the QoS flow corresponding to the first relay node.
  • Step 809b The second access network network element sends the service data of the first terminal to the user plane network element through the QoS flow corresponding to the second relay node.
  • step 809 refers to the foregoing step 602 for details, and will not be repeated.
  • Step 810 The user plane network element aggregates the service data of the first terminal and sends it to the application function network element.
  • step 810 for the specific description of step 810, reference may be made to step 603 above, which will not be repeated.
  • the user plane network element may, according to the received identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the QoS flow corresponding to the relay node, connect the first terminal And/or the service data of the first terminal sent by each relay node is aggregated and sent to the application server element to realize the aggregation of the service data of the first terminal by the network side device, and transmit the service data of the first terminal through the same transmission path , Improve the utilization of transmission resources.
  • each device includes a hardware structure and/or software module corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiment of the present application may divide the function modules of each network element according to the foregoing method examples.
  • each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 9 shows a communication device, and the communication device 90 may be an access network element or a chip or a system on a chip in an access network element.
  • the communication device 90 may be used to perform the functions of the network element of the access network involved in the foregoing embodiment.
  • the communication device 90 shown in FIG. 9 includes: a receiving module 901 and a sending module 902.
  • the receiving module 901 is configured to obtain identification information of the first terminal, identification information of at least one relay node of the first terminal, and information of the QoS flow corresponding to the first terminal; the QoS flow is used to transmit service data of the first terminal; The relay node is used to forward the service data of the first terminal.
  • the receiving module 901 is further configured to receive service data of the first terminal; the service data of the first terminal includes the service data of the first terminal forwarded by at least one relay node.
  • the sending module 902 is configured to send the service data of the first terminal to the user plane network element through the QoS flow.
  • the specific implementation of the communication device 90 can refer to the behavior function of the network element of the access network in the communication method described in FIG. 3 to FIG. 8.
  • the receiving module 901 is further configured to receive first information including identification information of the first terminal, identification information of at least one relay node, and QoS flow information from the mobility management network element.
  • the receiving module 901 is further configured to receive the first information including the identification information of the first terminal, the identification information of the first relay node, and the information of the QoS flow from the mobility management network element;
  • the module 901 is further configured to receive second information including the identification information of the first terminal, the identification information of the second relay node, and the information of the QoS flow from the mobility management network element; at least one relay node includes the first medium The relay node and the second relay node.
  • the communication device further includes a processing module 903, where the receiving module 901 is further configured to receive first service data from the first terminal and to receive relay service data from at least one relay node; and The module 903 is used to determine that the first service data and the relay service data are both service data of the first terminal according to the identification information of the first terminal and the identification information of at least one relay node; the sending module 902 is used to pass the QoS flow Send the service data of the first terminal to the user plane network element.
  • the receiving module 901 is configured to receive first relay service data from a first relay node and receive second relay service data from a second relay node; wherein, at least one relay The node includes a first relay node and a second relay node; the processing module 903 is configured to determine the first relay service data and the second relay service according to the identification information of the first terminal and the identification information of at least one relay node The data are all service data of the first terminal; the sending module 902 is configured to send the service data of the first terminal to the user plane network element through the QoS flow.
  • the receiving module 901 and the sending module 902 in FIG. 9 can be replaced by a transceiver, and the transceiver can integrate the functions of the receiving module 901 and the sending module 902.
  • the communication device 90 shown in FIG. 9 may also include a memory.
  • the receiving module 901 and the sending module 902 are replaced by transceivers, the communication device 90 involved in the embodiment of the present application may be the communication device shown in FIG. 2.
  • FIG. 10 shows a communication device, and the communication device 100 may be a user plane network element or a chip or a system on a chip in a user plane network element.
  • the communication device 100 may be used to perform the functions of the user plane network element involved in the foregoing embodiment.
  • the communication device 100 shown in FIG. 10 includes: a receiving module 1001 and a sending module 1002.
  • the receiving module 1001 is configured to obtain identification information of the first terminal, identification information of at least one relay node of the first terminal, and information of at least one QoS flow corresponding to the at least one relay node; wherein the relay node is used for forwarding The service data of the first terminal; the QoS stream is used to transmit the service data of the first terminal forwarded by the relay node.
  • the receiving module 1001 is further configured to receive service data of the first terminal through at least one QoS flow; wherein the service data of the first terminal includes the service data of the first terminal forwarded by at least one relay node.
  • the sending module 1002 is configured to aggregate the service data of the first terminal and send it to the application server.
  • the communication device 100 For the specific implementation of the communication device 100, refer to the behavior function of the user plane network element in the communication method described in FIG. 3 to FIG. 8.
  • the information of at least one QoS flow corresponding to at least one relay node includes: different relay nodes correspond to different QoS flows; or relay nodes corresponding to the same access network element correspond to the same QoS Flow, the relay nodes corresponding to different access network elements correspond to different QoS flows.
  • the receiving module 1001 is further configured to receive first information including identification information of the first terminal, identification information of at least one relay node, and information of at least one QoS flow from the session management network element.
  • the receiving module 1001 is further configured to receive the identification information of the first terminal, the identification information of the first relay node, and the information of the QoS flow corresponding to the first relay node from the session management network element.
  • the first information; the receiving module 1001 is also used to receive the first terminal identification information, the identification information of the second relay node, and the information of the QoS flow corresponding to the second relay node from the session management network element
  • Two information; at least one relay node includes a first relay node and a second relay node.
  • the receiving module 1001 is further configured to receive the first relay service data through the first QoS flow corresponding to the first relay node, and to receive the first relay service data through the second QoS flow corresponding to the second relay node.
  • the second relay service data; the receiving module 1001 is further configured to determine the first relay service data and the second relay service data according to the identification information of the at least one relay node of the first terminal and the QoS flow information corresponding to the relay node
  • the subsequent service data are all service data of the first terminal; the user plane network element aggregates the first relay service data and the second relay service data and sends them to the application server.
  • the receiving module 1001 and the sending module 1002 in FIG. 10 can be replaced by a transceiver, which can integrate the functions of the receiving module 1001 and the sending module 1002.
  • the communication device 100 shown in FIG. 10 may also include a memory.
  • the receiving module 1001 and the sending module 1002 are replaced by transceivers, the communication device 100 involved in the embodiment of the present application may be the communication device shown in FIG. 2.
  • FIG. 11 shows a communication device, and the communication device 110 may be a session management network element or a chip or a system on a chip in a session management network element.
  • the communication device 110 may be used to perform the functions of the session management network element involved in the foregoing embodiment.
  • the communication device 110 shown in FIG. 11 includes: a receiving module 1101 and a sending module 1102.
  • the receiving module 1101 is configured to obtain identification information of the first terminal and identification information of at least one relay node of the first terminal.
  • the sending module 1102 is configured to send the identification information of the first terminal, the identification information of at least one relay node of the first terminal, and the information of the quality of service QoS flow to the core network element; wherein, the relay node is used to forward the first terminal
  • the service data of the terminal is used to forward the first terminal
  • the QoS stream is used to transmit the service data of the first terminal
  • the service data of the first terminal includes the service data of the first terminal forwarded by at least one relay node.
  • the specific implementation of the communication device 110 may refer to the behavior function of the session management network element in the communication method described in FIG. 3 to FIG. 8.
  • the sending module 1102 is specifically configured to send first information to the mobility management network element; where the first information includes identification information of the first terminal , The identification information of at least one relay node and the information of the QoS flow corresponding to the first terminal; or the sending module 1102, specifically configured to send the first information and the second information to the mobility management network element; where the first information includes The identification information of the first terminal, the identification information of the first relay node, and the information of the QoS flow corresponding to the first terminal; the second information includes the identification information of the first terminal, the identification information of the second relay node, and the first terminal.
  • Information about the QoS flow corresponding to the terminal; at least one relay node includes a first relay node and a second relay node.
  • the sending module 1102 is specifically configured to send to the user plane network element the identification information including the first terminal, the identification information of at least one relay node, and The first information of the information of at least one QoS flow corresponding to at least one relay node; or the sending module 1102, specifically configured to send to the user plane network element the identification information including the first terminal, the identification information of the first relay node, and The first information of the QoS flow information corresponding to the first relay node and the second information including the identification information of the first terminal, the identification information of the second relay node, and the information of the QoS flow corresponding to the second relay node;
  • the at least one relay node includes a first relay node and a second relay node.
  • the communication device further includes a processing module 1103, where the receiving module 1101 is also used to receive the location information of at least one relay node from the mobility management network element; the processing module 1103 is used to The location information of the relay node determines the user plane network element.
  • the receiving module 1101 and the sending module 1102 in FIG. 11 can be replaced by a transceiver, and the transceiver can integrate the functions of the receiving module 1101 and the sending module 1102.
  • the communication device 110 shown in FIG. 11 may also include a memory.
  • the communication device 110 involved in the embodiment of the present application may be the communication device shown in FIG. 2.
  • the embodiment of the present application also provides a computer-readable storage medium. All or part of the processes in the foregoing method embodiments may be completed by a computer program instructing relevant hardware.
  • the program may be stored in the foregoing computer-readable storage medium. When the program is executed, it may include processes as in the foregoing method embodiments. .
  • the computer-readable storage medium may be an internal storage unit of the terminal (including the data sending end and/or the data receiving end) of any of the foregoing embodiments, such as the hard disk or memory of the terminal.
  • the computer-readable storage medium may also be an external storage device of the terminal, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, and a flash memory card equipped on the terminal.
  • SMC smart media card
  • SD secure digital
  • the aforementioned computer-readable storage medium may also include both an internal storage unit of the aforementioned terminal and an external storage device.
  • the aforementioned computer-readable storage medium is used to store the aforementioned computer program and other programs and data required by the aforementioned terminal.
  • the aforementioned computer-readable storage medium can also be used to temporarily store data that has been output or will be output.
  • At least one (item) refers to one or more
  • “multiple” refers to two or more than two
  • “at least two (item)” refers to two or three And three or more
  • “and/or” is used to describe the association relationship of the associated objects, indicating that there can be three kinds of relationships, for example, "A and/or B” can mean: only A, only B, and A at the same time And B three cases, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an "or” relationship.
  • At least one item (a) refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one of a, b, or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c" ", where a, b, and c can be single or multiple.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be divided. It can be combined or integrated into another device, or some features can be omitted or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate parts may or may not be physically separate.
  • the parts displayed as units may be one physical unit or multiple physical units, that is, they may be located in one place, or they may be distributed to multiple different places. . Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium.
  • the technical solutions of the embodiments of the present application are essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of a software product, and the software product is stored in a storage medium. It includes several instructions to make a device (which may be a single-chip microcomputer, a chip, etc.) or a processor (processor) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

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Abstract

本申请实施例提供的通信方法、装置及系统，涉及通信技术领域，能够解决现有技术中终端通过直连链路和/或相邻终端接入到网络时，网络侧设备无法将终端的业务数据聚合在一起，通过同一个传输路径发送给应用服务器，导致传输资源浪费的技术问题。方法包括：接入网网元获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息、以及第一终端对应的服务质量QoS流的信息；其中，QoS流用于传输第一终端的业务数据；中继节点用于转发第一终端的业务数据；接入网网元接收第一终端的业务数据；其中，第一终端的业务数据包括至少一个中继节点转发的第一终端的业务数据；接入网网元通过QoS流将第一终端的业务数据发送给用户面网元。

Description

通信方法、装置及系统
本申请要求了2020年2月29日提交的、申请号为PCT/CN2020/077344、发明名称为“一种通信方法及装置”的PCT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
本发明涉及通信技术领域，尤其是涉及一种通信方法、装置及系统。
背景技术
随着通信技术的发展，面向基于蜂窝网络的物联网(internet of things,IoT)得到普及。尤其是，具有低数据量、低功耗、深覆盖、低复杂度等特征的大规模机器类型通信(massive machine type communications,mMTC)，以及基于mMTC的机器物联网(machine internet of things，MIoT)。
现有mMTC和MIoT中，终端可以通过直连链路接入到网络，也可以通过相邻终端接入到网络。例如，当终端所处网络的信号质量不好或者终端处于无网络覆盖区域时，终端可以通过直连链路接入到网络和/或通过多个相邻终端接入到网络。当终端通过直连链路和/或相邻终端接入到网络时，网络侧设备无法将终端的业务数据聚合在一起，通过同一个传输路径发送给应用服务器，导致传输资源浪费。
发明内容
有鉴于此，本发明的目的在于提供一种通信方法、装置及系统，能够解决现有技术中终端通过直连链路和/或相邻终端接入到网络时，网络侧设备无法将终端的业务数据聚合在一起，通过同一个传输路径发送给应用服务器，导致传输资源浪费的技术问题。
第一方面，提供一种通信方法，该方法包括：接入网网元获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息、以及第一终端对应的QoS流的信息；QoS流用于传输第一终端的业务数据；中继节点用于转发第一终端的业务数据；接入网网元接收第一终端的业务数据；第一终端的业务数据包括至少一个中继节点转发的第一终端的业务数据；接入网网元通过QoS流将第一终端的业务数据发送给用户面网元。
基于第一方面所述的方法，接入网网元可以获取第一终端的标识信息，第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息。接入网网元在接收到第一终端发送的第一终端的业务数据和/或至少一个中继节点发送的第一终端的业务数据后，可以将第一终端发送的第一终端的业务数据和中继节点发送的第一终端的业务数据聚合在一起，通过第一终端对应的QoS流发送给用户面网元，从而提高传输资源利用率。
一种可能的设计中，接入网网元接收来自移动性管理网元的包括第一终端的标识信息、至少一个中继节点的标识信息、以及QoS流的信息的第一信息。
一种可能的设计中，接入网网元接收来自移动性管理网元的包括第一终端的标识信息、第一中继节点的标识信息、以及QoS流的信息的第一信息；至少一个中继节点包括第一中继节点；接入网网元接收来自移动性管理网元的包括第一终端的标识信息、第二中继节点的标识信息、以及QoS流的信息的第二信息；至少一个中继节点包括第二中继节点。
基于上述两种可能的设计，接入网网元可以根据接收到的第一信息确定第一终端的标识信息、至少一个中继节点的标识信息、以及QoS流的信息；也可以根据接收到的第一信息和第二信息确定第一终端的标识信息、至少一个中继节点的标识信息、以及QoS流的信息，可以有效且灵活的确定第一终端的相关信息及其中继节点的相关信息。
一种可能的设计中，接入网网元接收来自第一终端的第一业务数据，以及接收来自至少一个中继节点的中继业务数据；接入网网元根据第一终端的标识信息、至少一个中继节点的标识信息，确定第一业务数据和中继业务数据均为第一终端的业务数据；接入网网元通过QoS流将第一终端的业务数据发送给用户面网元。
一种可能的设计中，接入网网元接收来自第一中继节点的第一中继业务数据，以及接收来自第二中继节点的第二中继业务数据；其中，至少一个中继节点包括第一中继节点和第二中继节点；接入网网元根据第一终端的标识信息、至少一个中继节点的标识信息，确定第一中继业务数据和第二中继业务数据均为第一终端的业务数据；接入网网元通过QoS流将第一终端的业务数据发送给用户面网元。
基于上述两种可能的设计，接入网网元可以将第一终端发送的第一终端的业务数据与中继节点转发的第一终端的业务数据聚合后，通过第一终端对应的QoS流发送给用户面网元。也可以将各个中继节点转发的第一终端的业务数据聚合后，通过第一终端对应的QoS流发送给用户面网元，从而通过接入网网元实现网络侧设备对第一终端的业务数据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
第二方面，提供了一种通信装置，通信装置可以实现上述第一方面或者第一方面可能的设计中接入网网元所执行的功能，所述功能可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。如：该通信装置包括：接收模块，发送模块。
接收模块，用于获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息、以及第一终端对应的QoS流的信息；QoS流用于传输第一终端的业务数据；中继节点用于转发第一终端的业务数据。
接收模块，还用于接收第一终端的业务数据；第一终端的业务数据包括至少一个中继节点转发的第一终端的业务数据。
发送模块，用于通过QoS流将第一终端的业务数据发送给用户面网元。
其中，该通信装置的具体实现方式可参考第一方面或第一方面的任一种可能的设计提供的通信方法中接入网网元的行为功能，基于第二方面所述的通信装置，接入网网元可以获取第一终端的标识信息，第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息。接入网网元在接收到第一终端发送的第一终端的业务数据和/或至少一个中继节点发送的第一终端的业务数据后，可以将第一终端发送的第一终端的业务数据和中继节点发送的第一终端的业务数据聚合在一起，通过第一终端对应的QoS流发送给用户面网元，从而提高传输资源利用率。
一种可能的设计中，接收模块，还用于接收来自移动性管理网元的包括第一终端的标识信息、至少一个中继节点的标识信息、以及QoS流的信息的第一信息。
一种可能的设计中，接收模块，还用于接收来自移动性管理网元的包括第一终端的标识信息、第一中继节点的标识信息、以及QoS流的信息的第一信息；接收模块，还用于接 收来自移动性管理网元的包括第一终端的标识信息、第二中继节点的标识信息、以及QoS流的信息的第二信息；至少一个中继节点包括第一中继节点和第二中继节点。
基于上述两种可能的设计，接入网网元可以根据接收到的第一信息确定第一终端的标识信息、至少一个中继节点的标识信息、以及QoS流的信息；也可以根据接收到的第一信息和第二信息确定第一终端的标识信息、至少一个中继节点的标识信息、以及QoS流的信息，可以有效且灵活的确定第一终端的相关信息及其中继节点的相关信息。
一种可能的设计中，通信装置还包括处理模块，其中，接收模块，还用于接收来自第一终端的第一业务数据，以及接收来自至少一个中继节点的中继业务数据；处理模块，用于根据第一终端的标识信息、至少一个中继节点的标识信息，确定第一业务数据和中继业务数据均为第一终端的业务数据；发送模块，用于通过QoS流将第一终端的业务数据发送给用户面网元。
一种可能的设计中，接收模块，用于接收来自第一中继节点的第一中继业务数据，以及接收来自第二中继节点的第二中继业务数据；其中，至少一个中继节点包括第一中继节点和第二中继节点；处理模块，用于根据第一终端的标识信息、至少一个中继节点的标识信息，确定第一中继业务数据和第二中继业务数据均为第一终端的业务数据；发送模块，用于通过QoS流将第一终端的业务数据发送给用户面网元。
基于上述两种可能的设计，接入网网元可以将第一终端发送的第一终端的业务数据与中继节点转发的第一终端的业务数据聚合后，通过第一终端对应的QoS流发送给用户面网元。也可以将各个中继节点转发的第一终端的业务数据聚合后，通过第一终端对应的QoS流发送给用户面网元，从而通过接入网网元实现网络侧设备对第一终端的业务数据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
第三方面，提供了一种通信装置，该通信装置可以为接入网网元或者接入网网元中的芯片或者片上系统。该通信装置可以实现上述各方面或者各可能的设计中接入网网元所执行的功能，所述功能可以通过硬件实现。一种可能的设计中，该通信装置可以包括：收发器。收发器可以用于支持通信装置实现上述第一方面或者第一方面的任一种可能的设计中所涉及的功能。例如：收发器可以用于获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息、以及第一终端对应的QoS流的信息；QoS流用于传输第一终端的业务数据；中继节点用于转发第一终端的业务数据。收发器还可以用于接收第一终端的业务数据；第一终端的业务数据包括至少一个中继节点转发的第一终端的业务数据。收发器还可以用于通过QoS流将第一终端的业务数据发送给用户面网元。在又一种可能的设计中，所述通信装置还可以包括存储器，存储器，用于保存通信装置必要的计算机执行指令和数据。当该通信装置运行时，该收发器执行该存储器存储的该计算机执行指令，以使该通信装置执行如上述第一方面或者第一方面的任一种可能的设计所述的通信方法。
其中，该通信装置的具体实现方式可参考第一方面或第一方面的任一种可能的设计提供的通信方法中接入网网元的行为功能。
第四方面，提供了一种通信装置，该通信装置包括一个或多个处理器和一个或多个存储器；一个或多个存储器与一个或多个处理器耦合，一个或多个存储器用于存储计算机程序代码或计算机指令；当一个或多个处理器执行计算机指令时，使得通信装置执行如第一方面或者第一方面的任一可能的设计所述的通信方法。
第五方面，提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机指令或程序，当计算机指令或程序在计算机上运行时，使得计算机执行如第一方面或者第一方面的任一可能的设计所述的通信方法。
第六方面，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，使得计算机执行如第一方面或者第一方面的任一可能的设计所述的通信方法。
第七方面，提供了一种芯片系统，所述芯片系统包括一个或多个处理器和一个或多个存储器；一个或多个存储器与一个或多个处理器耦合，一个或多个存储器中存储有计算机程序代码或计算机指令；当所述一个或多个处理器执行所述计算机程序代码或计算机指令时，使得所述芯片系统执行如上述第一方面或者第一方面的任一可能的设计所述的通信方法。
其中，第三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上述第一方面至第二方面的任一种可能的设计所带来的技术效果，不再赘述。
第八方面，提供了一种通信方法，该方法包括：用户面网元获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息、以及至少一个中继节点对应的至少一个QoS流的信息；其中，中继节点用于转发第一终端的业务数据；QoS流用于传输中继节点转发的第一终端的业务数据；用户面网元通过至少一个QoS流接收第一终端的业务数据；其中，第一终端的业务数据包括至少一个中继节点转发的第一终端的业务数据；用户面网元将第一终端的业务数据聚合后发送给应用服务器。
基于第八方面所述的方法，用户面网元可以获取第一终端的标识信息，第一终端的至少一个中继节点的标识信息、各个中继节点对应的QoS流的信息。用户面网元在接收到各个中继节点发送的第一终端的业务数据后，可以将第一终端的业务数据聚合后发送给应用服务器。从而通过用户面网元实现网络侧设备对第一终端的业务数据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
一种可能的设计中，至少一个中继节点对应的至少一个QoS流的信息，包括：不同的中继节点对应不同的QoS流；或者对应同一接入网网元的中继节点对应相同的QoS流，对应不同接入网网元的中继节点对应不同的QoS流。
基于该可能的设计，可以将中继节点与QoS流一一对应，也可以将对应于同一接入网网元的中继节点对应相同的QoS流，对应不同接入网网元的中继节点对应不同的QoS流，不予限制。为中继节点与QoS流的对应关系提供了可行性方案。
一种可能的设计中，用户面网元接收来自会话管理网元的包括第一终端的标识信息、至少一个中继节点的标识信息、以及至少一个QoS流的信息的第一信息。
一种可能的设计中，用户面网元接收来自会话管理网元的包括第一终端的标识信息、第一中继节点的标识信息、以及第一中继节点对应的QoS流的信息的第一信息；用户面网元接收来自会话管理网元的包括第一终端的标识信息、第二中继节点的标识信息、以及第二中继节点对应的QoS流的信息的第二信息；至少一个中继节点包括第一中继节点和第二中继节点。
基于上述两种可能的设计，用户面网元可以根据接收到的第一信息确定第一终端的标识信息、至少一个中继节点的标识信息、中继节点对应的QoS流的信息，也可以根据接收到的第一信息和第二信息确定第一终端的标识信息、至少一个中继节点的标识信息、中继 节点对应的QoS流的信息，可以有效且灵活的确定第一终端的相关信息及其中继节点的相关信息。
一种可能的设计中，用户面网元通过与第一中继节点对应的第一QoS流接收第一中继业务数据，以及通过与第二中继节点对应的第二QoS流接收第二中继业务数据；用户面网元根据第一终端的至少一个中继节点的标识信息、以及中继节点对应的QoS流的信息，确定第一中继业务数据与第二中继业务数据均为第一终端的业务数据；用户面网元将第一中继业务数据和第二中继业务数据聚合后发送给应用服务器。
基于该可能的设计，用户面网元可以将各个中继节点转发的第一终端的业务数据聚合后发送给应用服务器，从而通过用户面网元实现网络侧设备对第一终端的业务数据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
第九方面，提供了一种通信装置，通信装置可以实现上述第八方面或者第八方面可能的设计中用户面网元所执行的功能，所述功能可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。如：该通信装置包括：接收模块，发送模块。
接收模块，用于获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息、以及至少一个中继节点对应的至少一个QoS流的信息；其中，中继节点用于转发第一终端的业务数据；QoS流用于传输中继节点转发的第一终端的业务数据。
接收模块，还用于通过至少一个QoS流接收第一终端的业务数据；其中，第一终端的业务数据包括至少一个中继节点转发的第一终端的业务数据。
发送模块，用于将第一终端的业务数据聚合后发送给应用服务器。
其中，该通信装置的具体实现方式可参考第八方面或第八方面的任一种可能的设计提供的通信方法中用户面网元的行为功能，基于第九方面所述的通信装置，用户面网元可以获取第一终端的标识信息，第一终端的至少一个中继节点的标识信息、各个中继节点对应的QoS流的信息。用户面网元在接收到各个中继节点发送的第一终端的业务数据后，可以将第一终端的业务数据聚合后发送给应用服务器。从而通过用户面网元实现网络侧设备对第一终端的业务数据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
一种可能的设计中，至少一个中继节点对应的至少一个QoS流的信息，包括：不同的中继节点对应不同的QoS流；或者对应同一接入网网元的中继节点对应相同的QoS流，对应不同接入网网元的中继节点对应不同的QoS流。
基于该可能的设计，可以将中继节点与QoS流一一对应，也可以将对应于同一接入网网元的中继节点对应相同的QoS流，对应不同接入网网元的中继节点对应不同的QoS流，不予限制。为中继节点与QoS流的对应关系提供了可行性方案。
一种可能的设计中，接收模块，还用于接收来自会话管理网元的包括第一终端的标识信息、至少一个中继节点的标识信息、以及至少一个QoS流的信息的第一信息。
一种可能的设计中，接收模块，还用于接收来自会话管理网元的包括第一终端的标识信息、第一中继节点的标识信息、以及第一中继节点对应的QoS流的信息的第一信息；接收模块，还用于接收来自会话管理网元的包括第一终端的标识信息、第二中继节点的标识信息、以及第二中继节点对应的QoS流的信息的第二信息；至少一个中继节点包括第一中 继节点和第二中继节点。
基于上述两种可能的设计，用户面网元可以根据接收到的第一信息确定第一终端的标识信息、至少一个中继节点的标识信息、中继节点对应的QoS流的信息。也可以根据接收到的第一信息和第二信息确定第一终端的标识信息、至少一个中继节点的标识信息、中继节点对应的QoS流的信息，可以有效且灵活的确定第一终端的相关信息及其中继节点的相关信息。
一种可能的设计中，接收模块，还用于通过与第一中继节点对应的第一QoS流接收第一中继业务数据，以及通过与第二中继节点对应的第二QoS流接收第二中继业务数据；接收模块，还用于根据第一终端的至少一个中继节点的标识信息、以及中继节点对应的QoS流的信息，确定第一中继业务数据与第二中继业务数据均为第一终端的业务数据；用户面网元将第一中继业务数据和第二中继业务数据聚合后发送给应用服务器。
基于该可能的设计，用户面网元可以将各个中继节点转发的第一终端的业务数据聚合后发送给应用服务器，从而通过用户面网元实现网络侧设备对第一终端的业务数据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
第十方面，提供了一种通信装置，该通信装置可以为用户面网元或者用户面网元中的芯片或者片上系统。该通信装置可以实现上述各方面或者各可能的设计中用户面网元所执行的功能，所述功能可以通过硬件实现。一种可能的设计中，该通信装置可以包括：收发器。收发器可以用于支持通信装置实现上述第八方面或者第八方面的任一种可能的设计中所涉及的功能。例如：收发器可以用于获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息、以及至少一个中继节点对应的至少一个QoS流的信息；其中，中继节点用于转发第一终端的业务数据；QoS流用于传输中继节点转发的第一终端的业务数据。收发器还可以用于通过至少一个QoS流接收第一终端的业务数据；其中，第一终端的业务数据包括至少一个中继节点转发的第一终端的业务数据。收发器还可以用于将第一终端的业务数据聚合后发送给应用服务器。在又一种可能的设计中，所述通信装置还可以包括存储器，存储器，用于保存通信装置必要的计算机执行指令和数据。当该通信装置运行时，该收发器执行该存储器存储的该计算机执行指令，以使该通信装置执行如上述第八方面或者第八方面的任一种可能的设计所述的通信方法。
其中，该通信装置的具体实现方式可参考第八方面或第八方面的任一种可能的设计提供的通信方法中用户面网元的行为功能。
第十一方面，提供了一种通信装置，该通信装置包括一个或多个处理器和一个或多个存储器；一个或多个存储器与一个或多个处理器耦合，一个或多个存储器用于存储计算机程序代码或计算机指令；当一个或多个处理器执行计算机指令时，使得通信装置执行如第八方面或者第八方面的任一可能的设计所述的通信方法。
第十二方面，提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机指令或程序，当计算机指令或程序在计算机上运行时，使得计算机执行如第八方面或者第八方面的任一可能的设计所述的通信方法。
第十三方面，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，使得计算机执行如第八方面或者第八方面的任一可能的设计所述的通信方法。
第十四方面，提供了一种芯片系统，所述芯片系统包括一个或多个处理器和一个或多 个存储器；一个或多个存储器与一个或多个处理器耦合，一个或多个存储器中存储有计算机程序代码或计算机指令；当所述一个或多个处理器执行所述计算机程序代码或计算机指令时，使得所述芯片系统执行如上述第八方面或者第八方面的任一可能的设计所述的通信方法。
其中，第十方面至第十四方面中任一种设计方式所带来的技术效果可参见上述第八方面至第九方面的任一种可能的设计所带来的技术效果，不再赘述。
第十五方面，提供了一种通信方法，该方法包括：会话管理网元获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息；会话管理网元向核心网网元发送第一终端的标识信息、第一终端的至少一个中继节点的标识信息、以及服务质量QoS流的信息；其中，中继节点用于转发第一终端的业务数据；QoS流用于传输第一终端的业务数据；第一终端的业务数据包括至少一个中继节点转发的第一终端的业务数据。
基于该可能的设计，会话管理网元可以向核心网网元发送第一终端的标识信息、第一终端的至少一个中继节点的标识信息、QoS流的信息，以使接入网网元或者用户面网元根据第一终端的标识信息、第一终端的至少一个中继节点的标识信息、QoS流的信息，实现对第一终端的业务数据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
一种可能的设计中，当核心网网元为移动性管理网元时，会话管理网元向移动性管理网元发送包括第一终端的标识信息、至少一个中继节点的标识信息、以及第一终端对应的QoS流的信息的第一信息；或者会话管理网元向移动性管理网元发送包括第一终端的标识信息、第一中继节点的标识信息、以及第一终端对应的QoS流的信息的第一信息和包括第一终端的标识信息、第二中继节点的标识信息、以及第一终端对应的QoS流的信息的第二信息；至少一个中继节点包括第一中继节点和第二中继节点。
基于该可能的设计，会话管理网元可以将第一信息、或者第一信息和第二信息发送给移动性管理网元，以使移动性管理网元将第一信息、或者第一信息和第二信息发送给接入网网元，使得接入网网元根据第一信息、或者第一信息和第二信息将第一终端的业务数据聚合后通过第一终端对应的QoS流发送给用户面网元，从而通过接入网网元实现网络侧设备对第一终端的业务数据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
一种可能的设计中，当核心网网元为用户面网元时，会话管理网元向用户面网元发送包括第一终端的标识信息、至少一个中继节点的标识信息、以及至少一个中继节点对应的至少一个QoS流的信息的第一信息；或者会话管理网元向用户面网元发送包括第一终端的标识信息、第一中继节点的标识信息、以及第一中继节点对应的QoS流的信息的第一信息和包括第一终端的标识信息、第二中继节点的标识信息、以及第二中继节点对应的QoS流的信息的第二信息；至少一个中继节点包括第一中继节点和第二中继节点。
基于该可能的设计，会话管理网元可以将第一信息、或者第一信息和第二信息发送给用户面网元，以使用户面网元根据第一信息、或者第一信息和第二信息将第一终端的业务数据聚合后发送给应用服务器，从而通过用户面网元实现网络侧设备对第一终端的业务数据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
一种可能的设计中，会话管理网元接收来自移动性管理网元的至少一个中继节点的位 置信息；会话管理网元根据至少一个中继节点的位置信息确定用户面网元。
基于该可能的设计，会话管理网元可以根据各个中继节点的位置信息确定用户面网元，以使用户面网元可以接收到各个中继节点转发的第一终端的业务数据。
第十六方面，提供了一种通信装置，通信装置可以实现上述第十五方面或者第十五方面可能的设计中会话管理网元所执行的功能，所述功能可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。如：该通信装置包括：接收模块，发送模块。
接收模块，用于获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息。
发送模块，用于向核心网网元发送第一终端的标识信息、第一终端的至少一个中继节点的标识信息、以及服务质量QoS流的信息；其中，中继节点用于转发第一终端的业务数据；QoS流用于传输第一终端的业务数据；第一终端的业务数据包括至少一个中继节点转发的第一终端的业务数据。
其中，该通信装置的具体实现方式可参考第十五方面或第十五方面的任一种可能的设计提供的通信方法中会话管理网元的行为功能，基于第十六方面所述的通信装置，会话管理网元可以向核心网网元发送第一终端的标识信息、第一终端的至少一个中继节点的标识信息、QoS流的信息，以使接入网网元或者用户面网元根据第一终端的标识信息、第一终端的至少一个中继节点的标识信息、QoS流的信息，实现对第一终端的业务数据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
一种可能的设计中，当核心网网元为移动性管理网元时，发送模块，具体用于向移动性管理网元发送包括第一终端的标识信息、至少一个中继节点的标识信息、以及第一终端对应的QoS流的信息的第一信息；或者发送模块，具体用于向移动性管理网元发送包括第一终端的标识信息、第一中继节点的标识信息、以及第一终端对应的QoS流的信息的第一信息和包括第一终端的标识信息、第二中继节点的标识信息、以及第一终端对应的QoS流的信息的第二信息；至少一个中继节点包括第一中继节点和第二中继节点。
基于该可能的设计，会话管理网元可以将第一信息、或者第一信息和第二信息发送给移动性管理网元，以使移动性管理网元将第一信息、或者第一信息和第二信息发送给接入网网元，使得接入网网元根据第一信息、或者第一信息和第二信息将第一终端的业务数据聚合后通过第一终端对应的QoS流发送给用户面网元，从而通过接入网网元实现网络侧设备对第一终端的业务数据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
一种可能的设计中，当核心网网元为用户面网元时，发送模块，具体用于向用户面网元发送包括第一终端的标识信息、至少一个中继节点的标识信息、以及至少一个中继节点对应的至少一个QoS流的信息的第一信息；或者发送模块，具体用于向用户面网元发送包括第一终端的标识信息、第一中继节点的标识信息、以及第一中继节点对应的QoS流的信息的第一信息和包括第一终端的标识信息、第二中继节点的标识信息、以及第二中继节点对应的QoS流的信息的第二信息；至少一个中继节点包括第一中继节点和第二中继节点。
基于该可能的设计，会话管理网元可以将第一信息、或者第一信息和第二信息发送给用户面网元，以使用户面网元根据第一信息、或者第一信息和第二信息将第一终端的业务数据聚合后发送给应用服务器，从而通过用户面网元实现网络侧设备对第一终端的业务数 据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
一种可能的设计中，通信装置还包括处理模块，其中，接收模块，还用于接收来自移动性管理网元的至少一个中继节点的位置信息；处理模块，用于根据至少一个中继节点的位置信息确定用户面网元。
基于该可能的设计，会话管理网元可以根据各个中继节点的位置信息确定用户面网元，以使用户面网元可以接收到各个中继节点转发的第一终端的业务数据。
第十七方面，提供了一种通信装置，该通信装置可以为会话管理网元或者会话管理网元中的芯片或者片上系统。该通信装置可以实现上述各方面或者各可能的设计中会话管理网元所执行的功能，所述功能可以通过硬件实现。一种可能的设计中，该通信装置可以包括：收发器。收发器可以用于支持通信装置实现上述第十五方面或者第十五方面的任一种可能的设计中所涉及的功能。例如：收发器可以用于获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息。收发器还可以用于向核心网网元发送第一终端的标识信息、第一终端的至少一个中继节点的标识信息、以及服务质量QoS流的信息；其中，中继节点用于转发第一终端的业务数据；QoS流用于传输第一终端的业务数据；第一终端的业务数据包括至少一个中继节点转发的第一终端的业务数据。在又一种可能的设计中，所述通信装置还可以包括存储器，存储器，用于保存通信装置必要的计算机执行指令和数据。当该通信装置运行时，该收发器执行该存储器存储的该计算机执行指令，以使该通信装置执行如上述第十五方面或者第十五方面的任一种可能的设计所述的通信方法。
其中，该通信装置的具体实现方式可参考第十五方面或第十五方面的任一种可能的设计提供的通信方法中会话管理网元的行为功能。
第十八方面，提供了一种通信装置，该通信装置包括一个或多个处理器和一个或多个存储器；一个或多个存储器与一个或多个处理器耦合，一个或多个存储器用于存储计算机程序代码或计算机指令；当一个或多个处理器执行计算机指令时，使得通信装置执行如第十五方面或者第十五方面的任一可能的设计所述的通信方法。
第十九方面，提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机指令或程序，当计算机指令或程序在计算机上运行时，使得计算机执行如第十五方面或者第十五方面的任一可能的设计所述的通信方法。
第二十方面，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，使得计算机执行如第十五方面或者第十五方面的任一可能的设计所述的通信方法。
第二十一方面，提供了一种芯片系统，所述芯片系统包括一个或多个处理器和一个或多个存储器；一个或多个存储器与一个或多个处理器耦合，一个或多个存储器中存储有计算机程序代码或计算机指令；当所述一个或多个处理器执行所述计算机程序代码或计算机指令时，使得所述芯片系统执行如上述第十五方面或者第十五方面的任一可能的设计所述的通信方法。
其中，第十七方面至第二十一方面中任一种设计方式所带来的技术效果可参见上述第十五方面至第十六方面的任一种可能的设计所带来的技术效果，不再赘述。
第二十二方面，提供了一种通信系统，该通信系统包括如第二方面或第二方面的任一可能的设计所述的通信装置以及如第十六方面或者第十六方面的任一可能的设计所述的通信装置。
第二十三方面，提供了一种通信系统，该通信系统包括如第九方面或第九方面的任一可能的设计所述的通信装置以及如第十六方面或者第十六方面的任一可能的设计所述的通信装置。
附图说明
图1为本申请实施例提供的一种通信系统的示意图；
图1a为本申请实施例提供的一种5G通信系统的示意图；
图2为本申请实施例提供的一种通信装置的组成结构图；
图3a为本申请实施例提供的一种通信系统的示意图；
图3为本申请实施例提供的一种通信方法流程图；
图4为本申请实施例提供的一种通信方法流程图；
图5为本申请实施例提供的一种通信方法流程图；
图6a为本申请实施例提供的一种通信系统的示意图；
图6为本申请实施例提供的一种通信方法示意图；
图7为本申请实施例提供的一种通信方法流程图；
图8为本申请实施例提供的一种通信方法流程图；
图9为本申请实施例提供的一种通信装置的组成示意图；
图10为本申请实施例提供的一种通信装置的组成示意图；
图11为本申请实施例提供的一种通信装置的组成示意图。
具体实施方式
通信系统中，当终端处于网络覆盖范围不好或者无网络覆盖时，终端可以通过直连链路接入到网络和/或通过多个相邻终端接入到网络。当终端通过直连链路和/或相邻终端接入到网络时，网络侧设备无法将终端的业务数据聚合在一起，通过同一个传输路径发送给应用服务器，导致传输资源浪费。例如，假设第一终端可以通过第二终端的协议数据单元(protocol data unit，PDU)会话和第三终端的PDU会话将第一终端的业务数据传输给应用服务器，如果第二终端的PDU会话与第三终端的PDU会话对应不同的接入网网元和不同的用户面网元，则第一终端的业务数据需要通过不同的接入网网元和不同的用户面网元发送给应用功能网元，即第一终端将第一终端的业务数据通过不同的传输路径传输给应用服务器，导致传输资源浪费。
为解决该问题，本申请的实施例提供了一种通信方法，该方法可以包括：接入网网元获取第一终端的标识信息，第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息。接入网网元在接收到第一终端发送的第一终端的业务数据和/或至少一个中继节点发送的第一终端的业务数据后，可以将第一终端发送的第一终端的业务数据和中继节点发送的第一终端的业务数据聚合在一起，通过第一终端对应的服务质量(quality of service，QoS)流发送给用户面网元，从而提高传输资源利用率。
下面结合说明书附图对本申请实施例的实施方式进行详细描述。
本申请实施例提供的通信方法可用于任一通信系统，该通信系统可以为第三代合作伙伴计划(third generation partnership project，3GPP)通信系统，例如，长期演进(long term evolution，LTE)系统，又可以为第五代(fifth generation，5G)移动通信系统、新空口(new radio，NR)系统、NR V2X系统以及其他下一代通信系统，也可以为非3GPP通信系统， 不予限制。本申请实施例提供的通信方法可以应用于各种通信场景，例如可以应用于以下通信场景中的一种或多种：增强移动宽带(enhanced mobile broadband，eMBB)、超可靠低时延通信(ultra reliable low latency communication，URLLC)、机器类型通信(machine type communication，MTC)、大规模机器类型通信(massive machine type communications，mMTC)、设备到设备(device to device，D2D)、车辆外联(vehicle to everything，V2X)、车辆到车辆(vehicle to vehicle，V2V)、和物联网(internet of things，IoT)等。下面以图1为例，对本申请实施例提供的通信方法进行描述。
图1为本申请实施例提供的一种通信系统的示意图，如图1所示，该通信系统可以包括多个终端、至少一个接入网网元、移动性管理网元、会话管理网元、策略控制网元、用户面网元、应用功能网元和数据网络(data network，DN)。
其中，图1中终端可以通过侧行链路(sidelink，SL)与其他终端进行侧行通信或者D2D通信，在SL上向其他终端发送数据，如：在SL上通过侧行链路物理层共享信道(physical sidelink share channel，PSSCH)向其他终端发送侧行数据、在SL上通过侧行链路物理层反馈信道(physical sidelink feedback channel，PSFCH)向其他终端发送与接收到的侧行数据对应的侧行反馈控制信息(sidelink feedback control information，SFCI)等。D2D通信可以包括车与车的通信、车与行人的通信、车与基础设施的通信、无人机(unmanned aerial vehicle，UAV)与无人机之间的通信等，不予限制。需要说明的是，本申请实施例中，SL还可以称为直连链路或者PC5接口链路等，不予限制。
图1中的终端可以位于接入网网元的小区覆盖范围内，也可以位于接入网网元的小区覆盖范围外。其中，终端可以通过上行链路(uplink，UL)与接入网网元进行空口通信，在UL方向上，终端向接入网网元发送数据，接入网网元将接收到的数据转发给核心网网元，由核心网网元对该数据进行处理，并将处理后的数据通过N6接口发送给应用服务器；在DL方向上，应用服务器向核心网网元发送下行数据，由核心网网元对该数据处理，并将处理后的数据通过N3接口发送给接入网网元，接入网网元对该数据进行处理后，通过空口发送至终端。如：终端在UL方向上通过上行链路物理层共享信道(physical sidelink share channel，PUSCH)向接入网网元发送上行数据，接入网网元将接收到的上行数据转发给核心网网元，核心网网元对该上行数据进行处理，将处理后的上行数据通过N6接口发送给应用服务器；其中，转发终端至核心网网元的上行数据的接入网网元与转发核心网网元至终端的下行数据的接入网网元可以是同一个接入网网元，也可以是不同的接入网网元。
图1中的终端也可以通过特定接口与核心网网元进行通信，如：终端可以通过N1接口与核心网网元中的移动性管理网元进行通信。
图1中的终端在接入网络后可以建立协议数据单元(protocol data unit，PDU)会话，通过PDU会话访问外部数据网络DN，与部署在DN中的应用服务器进行交互，如图1所示，根据用户访问的DN不同，网络可以根据网络策略选择接入DN的用户面网元作为PDU会话的锚点，即协议数据单元锚点(PDU session anchor，PSA)，通过PSA的N6接口访问应用服务器，同一个应用的应用服务器可以部署在多个位置，网络可以根据终端的接入位置，选择靠近终端同时又能支持终端访问DN的PSA，以减少路由迂回，降低网络延迟。
其中，图1中的终端(terminal)可以称为用户设备(user equipment，UE)或者移动 台(mobile station，MS)或者移动终端(mobile terminal，MT)等。具体的，图1中的终端可以是手机(mobile phone)、平板电脑或带无线收发功能的电脑。终端还可以是虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制中的无线终端、无人驾驶中的无线终端、远程医疗中的无线终端、智能电网中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、车载终端、具有车对车(vehicle-to-vehicle，V2V)通信能力的车辆、智能网联车、有无人机对无人机(UAV to UAV，U2U)通信能力的无人机等等，不予限制。
图1中的接入网网元可以是任意一种具有无线收发功能的设备，主要用于实现无线物理控制功能、资源调度和无线资源管理、无线接入控制以及移动性管理等功能。具体的，接入网网元可以为支持有线接入的设备，也可以为支持无线接入的设备。示例性的，该接入网网元可以为接入网(access network，AN)/无线接入网(radio access network，RAN)设备，由多个5G-AN/5G-RAN节点组成。5G-AN/5G-RAN节点可以为：接入点(access point，AP)、基站(nodeB，NB)、增强型基站(enhance nodeB，eNB)、下一代基站(NR nodeB，gNB)、传输接收点(transmission reception point，TRP)、传输点(transmission point，TP)或某种其它接入节点等。
图1中的移动性管理网元，主要负责用户设备的接入认证、移动性管理、各个功能网元间的信令交互等工作，如：对用户的注册状态、用户的连接状态、用户注册入网、跟踪区更新、小区切换用户认证和密钥安全等进行管理。
图1中的会话管理网元，可以称为会话管理功能或者多播/组播业务管理功能(multicast/broadcast-service management function，MB-SMF)或者多播会话管理网元等，不予限制。会话管理网元主要用于实现用户面传输逻辑通道，如：分组数据单元(packet data unit，PDU)会话的建立、释放和更改等会话管理功能。
图1中的策略控制网元，可以用于向移动性管理网元、会话管理网元提供策略，如：服务质量(quality of service)策略等等。
图1中的用户面网元，可以称为PDU会话锚点(PSF)、用户面功能或者多播/组播用户面功能(multicast/broadcast user plane fuction，MB-UPF)。用户面网元可以作为用户面传输逻辑通道上的锚点，主要用于完成用户面数据的路由转发等功能，如：与终端之间建立通道(即用户面传输逻辑通道)，在该通道上转发终端和DN之间的数据包以及负责对终端的数据报文过滤、数据转发、速率控制、生成计费信息等。多播/组播(multicast/broadcast，MB)业务控制器(MB service controller)，具有群组管理、安全管理以及业务公告等业务管理功能。
图1中的应用功能网元，主要是提供应用服务器和核心网中的网元交互的中间功能实体，应用服务器可以通过它实现对网络服务质量和计费的动态控制、保障SLA需求、获取核心网中某个网元的运行信息等。在本申请实施例中，应用功能网元可以为运营商部署的功能实体，也可以为服务提供商部署的功能实体，该服务提供商可以为第三方服务提供商，还可以为运营商内部的服务提供商，不予限制。
图1中的数据网络DN，可以为向用户提供数据传输服务的运营商网络，如：可以为向用户提供IP多媒体业务(IP multi-media service，IMS)的运营商网络等。DN中可以部署有应用服务器，该应用服务器可以向用户提供数据传输服务。
需要说明的是，本申请实施例的多个终端、至少一个接入网网元以及核心网网元都可以为一个或多个芯片，也可以为片上系统(system on chip，SOC)等。图1仅为示例性附图，其包括的设备数量不受限制。此外，除图1所示设备之外，该通信系统还可以包括其他设备。图1中各个设备的名称、各个链路的命名不受限制，除图1所示名称之外，各个设备、各个链路还可以命名为其他名称。除图1所示网元外，图1所示网络还可以包括网络切片选择网元、网络仓库网元、认证服务网元、网络存储网元、网络数据分析网元、网络开放网元等，不予限制。
以图1所示的通信系统为5G通信系统为例，如图1a所示，上述接入网网元对应的网元或者实体可以为5G通信系统中的无线接入网(radio access network，RAN)、移动性管理网元对应的网元或者实体可以为5G通信系统中的接入和移动性管理功能(access and mobility management function，AMF)、会话管理网元所对应的网元或者实体可以为5G通信系统中的会话管理功能(session management function，SMF)、策略控制网元可以为5G通信系统中的策略控制功能(policy control function，PCF)、用户面网元所对应的网元或者实体可以为5G通信系统中的用户面功能(user plane function，UPF)、应用功能网元对应的网元或者实体可以为5G通信系统中的应用功能(application function，AF)、网络切片选择网元对应的网元或实体可以为5G通信系统中的网络切片选择功能(network slice selection function，NSSF)、网络仓库网元对应的网元或实体可以为5G通信系统中的网络仓库功能(network repository function，NRF)、鉴权服务网元对应的网元或实体可以为5G通信系统中的鉴权服务功能(authentication server function，AUSF)、网络存储网元对应的网元或者实体可以为5G通信系统中的NRF或者统一数据仓库(unified data repository，UDR)或者统一数据管理(unified data management，UDM)、网络数据分析网元对应的网元或者实体可以为5G通信系统中的网络数据分析功能(network data analytics function，NWDAF)、网络开放网元对应的网元或者实体可以为5G通信系统中的网络开放功能(network exposure function，NEF)、业务控制网元对应的网元或实体可以为5G通信系统中的业务控制点(service control point，SCP)等。
其中，如图1a所示，终端通过下一代网络(next generation，N)1接口(简称N1)与AMF通信，RAN设备通过N2接口(简称N2)与AMF通信，RAN设备通过N3接口(简称N3)与UPF通信，UPF通过N6接口与DN中的应用服务器通信。核心网网元之间可以通过服务化接口相互通信，如：AMF可以通过Namf接口与其他核心网网元通信，SMF可以通过Nsmf接口与其他核心网网元通信，PCF可以通过Npcf接口与其他核心网网元通信，NSSF可以通过Nnssf接口与其他核心网网元通信，NEF可以通过Nnef接口与其他核心网网元通信，NRF可以通过Nnrf接口与其他核心网网元通信，UDM可以通过Nudr接口与其他核心网网元通信，NWDAF可以通过Nnwdaf接口与其他核心网网元通信，AUSF可以通过Nausf接口与其他核心网网元通信。
具体实现时，图1所示，如：各个终端、接入网网元和核心网网元均可以采用图2所示的组成结构，或者包括图2所示的部件。图2为本申请实施例提供的一种通信装置200的组成示意图，该通信装置200可以为终端或者终端中的芯片或者片上系统；也可以为接入网网元或者接入网网元中的芯片或者片上系统；也可以为核心网网元或者核心网网元中的芯片或者片上系统。如图2所示，该通信装置200包括处理器201，收发器202以及通 信线路203。
进一步的，该通信装置200还可以包括存储器204。其中，处理器201，存储器204以及收发器202之间可以通过通信线路203连接。
其中，处理器201是中央处理器(central processing unit，CPU)、通用处理器网络处理器(network processor，NP)、数字信号处理器(digital signal processing，DSP)、微处理器、微控制器、可编程逻辑器件(programmable logic device，PLD)或它们的任意组合。处理器201还可以是其它具有处理功能的装置，例如电路、器件或软件模块，不予限制。
收发器202，用于与其他设备或其它通信网络进行通信。该其它通信网络可以为以太网，无线接入网(radio access network，RAN)，无线局域网(wireless local area networks，WLAN)等。收发器202可以是模块、电路、收发器或者任何能够实现通信的装置。
通信线路203，用于在通信装置200所包括的各部件之间传送信息。
存储器204，用于存储指令。其中，指令可以是计算机程序。
其中，存储器204可以是只读存储器(read-only memory，ROM)或可存储静态信息和/或指令的其他类型的静态存储设备，也可以是随机存取存储器(random access memory，RAM)或可存储信息和/或指令的其他类型的动态存储设备，还可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，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)、磁盘存储介质或其他磁存储设备等，不予限制。
需要指出的是，存储器204可以独立于处理器201存在，也可以和处理器201集成在一起。存储器204可以用于存储指令或者程序代码或者一些数据等。存储器204可以位于通信装置200内，也可以位于通信装置200外，不予限制。处理器201，用于执行存储器204中存储的指令，以实现本申请下述实施例提供的通信方法。
在一种示例中，处理器201可以包括一个或多个CPU，例如图2中的CPU0和CPU1。
作为一种可选的实现方式，通信装置200包括多个处理器，例如，除图2中的处理器201之外，还可以包括处理器207。
作为一种可选的实现方式，通信装置200还包括输出设备205和输入设备206。示例性地，输入设备206是键盘、鼠标、麦克风或操作杆等设备，输出设备205是显示屏、扬声器(speaker)等设备。
需要指出的是，通信装置200可以是台式机、便携式电脑、网络服务器、移动手机、平板电脑、无线终端、嵌入式设备、芯片系统或有图2中类似结构的设备。此外，图3中示出的组成结构并不构成对该通信装置的限定，除图2所示部件之外，该通信装置可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
本申请实施例中，芯片系统可以由芯片构成，也可以包括芯片和其他分立器件。
此外，本申请的各实施例之间涉及的动作、术语等均可以相互参考，不予限制。本申请的实施例中各个设备之间交互的消息名称或消息中的参数名称等只是一个示例，具体实现中也可以采用其他的名称，不予限制。
下面结合图1所示通信系统，对本申请实施例提供的通信方法进行描述，其中，第一终端可以为通信系统中的任一终端，中继节点可以为通信系统中任一可以将第一终端的业务数据转发给接入网网元的终端，第一终端与各个中继节点可以对应同一接入网网元，各 个中继节点也可以对应不同的接入网网元，用户面网元可以为通信系统中的任一用户面网元。下述实施例所述的第一终端、中继节点、接入网网元、用户面网元可以具备图2所示部件。
下面结合图3-图5所示方法，以第一终端与各个中继节点对应同一接入网网元为例，对本申请实施例提供的通信方法进行详细说明。
图3为本申请实施例提供的一种通信方法的流程图，图3所示方法中，第一终端与第一终端的至少一个中继节点可以对应同一个接入网网元。例如，参照图3a，以第一终端为UE1，第一终端的至少一个中继节点包括UE2、UE3和UE4为例，UE1、UE2、UE3、UE4建立的PDU会话可以对应同一个接入网网元以及同一个用户面网元。如图3所示，该方法可以包括：
步骤301、接入网网元获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息。
其中，第一终端的标识信息可以用于标识第一终端。第一终端的标识信息可以为第一终端的身份信息(identity，ID)、第一终端的互联网协议(internet protocol，IP)地址、第一终端的媒体接入控制(media access control，MAC)地址、第一终端的国际移动用户识别码(international mobile subscriber identity，IMSI)、全球唯一临时标识(globally unique temporary UE identity，GUTI)、用户永久标识符(subscription permanent identifier，SUPI)或者通用公共用户标识符(generic public subscription identifier，GPSI)等，不予限制。第一终端可以采用下述方式(1)或方式(2)将第一终端的标识信息以广播形式发送给通信系统中的其他终端，如：中继节点等，不予限制。
其中，上述中继节点可以为用于将第一终端的业务数据转发给接入网网元的终端。中继节点的标识信息可以为中继节点的身份信息(例如：ID)、中继节点的IP地址、中继节点的MAC地址、中继节点的IMSI、GUTI、SUPI或者GPSI等，不予限制。中继节点可以采用下述方式(1)或方式(2)将中继节点的标识信息发送给通信系统中的其他终端，如：第一终端等，不予限制。
其中，上述第一终端对应的QoS流可以用于传输第一终端的业务数据。QoS流的信息可以包括QoS流的标识、传输优先级、带宽、时延等信息。QoS流的标识可以为服务质量流的身份标识(quality of service flow identity，QFI)、分配保留优先级(allocation retention priority，ARP)或第五代移动通信技术服务质量标识(fifth-generation mobile networks quality of service identifier，5QI)等，不予限制。需要说明的是，QoS流的信息也可以描述为QoS流的上下文。本申请实施例中，为了满足第一终端的业务数据的传输需求等QoS需求，可以将第一终端与支持传输第一终端的业务数据的QoS流对应起来，以使接入网网元可以将接收到的来自第一终端和/或至少一个中继节点的第一终端的业务数据聚合到同一个QoS流上发送给用户面网元。
一种可能的设计，QoS流可以为第一终端建立的PDU会话对应的QoS流，QoS流可以用于接入网网元与用户面网元之间传输第一终端的业务数据，该QoS流的QoS参数满足其上传输的第一终端的业务数据的QoS需求。示例性的，会话管理网元可以在为第一终端建立该PDU会话时，建立与第一终端对应的QoS流，并将建立的QoS流的信息通过移动性管理网元发送给接入网网元；或者，会话管理网元为第一终端建立PDU会话之后， 修改该PDU会话，包括修改或增加PDU会话的QoS流，使修改或增加后的QoS流与第一终端对应，满足第一终端的业务数据的传输需求等QoS需求，并将修改或增加后的QoS流的信息通过移动性管理网元发送给接入网网元。具体的，会话管理网元为第一终端的PDU会话确定第一终端对应的QoS流，并将QoS流的信息通过移动性管理网元发送给接入网网元的过程可参照下述图4所示方法。
又一种可能的设计，上述QoS流也可以为中继节点建立的PDU会话对应的QoS流，QoS流可以用于接入网网元与用户面网元之间传输第一终端的业务数据，该QoS流的QoS参数满足其上传输的第一终端的业务数据的QoS需求。示例性的，会话管理网元可以在为中继节点建立PDU会话时，建立与第一终端对应的QoS流，并将建立的QoS流的信息通过移动性管理网元发送给接入网网元；或者，会话管理网元为中继节点建立PDU会话之后，修改该PDU会话，包括修改或增加PDU会话的QoS流，使修改或增加后的QoS流与第一终端对应，满足第一终端的业务数据的传输需求等QoS需求，并将修改或增加后的QoS流的信息通过移动性管理网元发送给接入网网元。具体的，会话管理网元为中继节点的PDU会话确定第一终端对应的QoS流，并将QoS流的信息通过移动性管理网元发送给接入网网元的过程可参照下述图5所示方法。
示例性的，接入网网元可以通过移动性管理网元接收来自会话管理网元的第一终端的标识信息、第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息。
其中，会话管理网元可以获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息，根据第一终端的标识信息确定第一终端对应的QoS流的信息，并将第一终端的标识信息、第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息携带在同一信息，如第一信息中发送给接入网网元。或者，会话管理网元也可以将第一终端的标识信息、第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息携带在至少一个信息中，如第一信息和第二信息中发送给接入网网元。第一信息可以包括第一终端的标识信息、第一中继节点的标识信息、第一终端对应的QoS流的信息。第二信息可以包括第一终端的标识信息、第二中继节点的标识信息、第一终端对应的QoS流的信息。可以理解的是，当第一终端的至少一个中继节点包括第三中继节点时，接入网网元还可以接收来自移动性管理网元的第三信息，本申请实施例中仅以第一终端的中继节点包括第一中继节点和第二中继节点为例进行描述。
例如，以第一终端为UE1、第一终端的至少一个中继节点包括UE2、UE3和UE4为例，会话管理网元可以获取UE1的标识信息、UE2的标识信息、UE3的标识信息和UE4的标识信息，根据UE1的标识信息确定UE1对应的QoS流的信息，并将UE1的标识信息、UE2的标识信息、UE3的标识信息、UE4的标识信息、UE1对应的QoS流的信息携带在第一信息中通过移动性管理网元发送给接入网网元。
又例如，以第一终端为UE1，第一中继节点为UE2，第二中继节点为UE3为例。会话管理网元可以获取UE1的标识信息、UE2的标识信息、UE3的标识信息，根据UE1的标识信息确定UE1对应的QoS流的信息，并通过移动性管理网元向接入网网元发送第一信息和第二消息，其中，第一信息包括UE1的标识信息、UE2的标识信息、UE1对应的QoS流的信息，第二消息包括UE1的标识信息、UE3的标识信息、UE1对应的QoS流的信息。
需要说明的是，当会话管理网元通过移动性管理网元向接入网网元发送第一信息和第二信息时，如果会话管理网元已经向接入网网元发送了第一信息，接入网网元可以根据该第一信息确定UE1对应的QoS流的信息。会话管理网元向接入网网元发送第二信息时，可以将第二信息中UE1对应的QoS流的信息替换成UE1对应的QoS流的标识信息，以使接入网网元根据第二信息中的UE1对应的QoS流的标识信息和第一信息中UE1对应的QoS流的信息确定第二信息中UE1对应的QoS流的信息，从而减少第二信息的信息量，减少开销。
其中，会话管理网元通过移动性管理网元向接入网网元发送第一信息和/或第二信息时，可以以数组形式发送，也可以以表格形式发送或者以其他形式发送，不予限制。以数组形式向接入网网元发送第一信息为例，假设第一信息包括UE1的标识信息、UE2的标识信息、UE3的标识信息、UE4的标识信息、UE1对应的QoS流的信息，会话管理网元可以通过移动性管理网元向接入网网元发送(UE1的标识信息，UE2的标识信息、UE3的标识信息、UE4的标识信息，UE1对应的QoS流的信息)。以表格形式向接入网网元发送第一信息为例，假设第一信息包括UE1的标识信息、UE2的标识信息、UE3的标识信息、UE4的标识信息、UE1对应的QoS流的信息，会话管理网元可以将下述表一通过移动性管理网元发送给接入网网元：
表一
Figure PCTCN2020119855-appb-000001
进一步的，接入网网元接收到第一终端的标识信息、第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息之后，接入网网元可以保存第一终端的标识信息、第一终端的至少一个中继节点的标识信息与第一终端对应的QoS流的信息之间的对应关系。
步骤302、接入网网元接收第一终端的业务数据。
其中，第一终端的业务数据可以包括第一终端通过直连链路发送给接入网网元的第一业务数据，也可以包括第一终端通过至少一个中继节点转发给接入网网元的第一终端的业务数据。本申请中，第一终端通过至少一个中继节点转发给接入网网元的第一终端的业务数据也可以称为中继业务数据。
示例性的，接入网网元可以通过第一终端的PDU会话接收来自第一终端的第一业务数据，和/或，通过至少一个中继节点的PDU会话接收来自至少一个中继节点的中继业务数据。当接入网网元通过至少一个中继节点的PDU会话接收来自至少一个中继节点的中继业务数据后，接入网网元可以根据上述步骤301保存的对应关系，在确定接收到的中继业务数据为第一终端的中继节点所发送时，将该中继业务数据确定为第一终端的业务数据。
其中，当中继节点包括第一中继节点和第二中继节点时，中继业务数据可以包括第一中继业务数据和第二中继业务数据，第一中继业务数据为第一中继节点转发的第一终端的业务数据，第二中继业务数据为第二中继节点转发的第一终端的业务数据。可以理解的是，当第一终端的至少一个中继节点还包括第三中继节点时，接入网网元 还可以接收第三中继节点发送的第三中继业务数据，本申请实施例中仅以第一终端的中继节点包括第一中继节点和第二中继节点为例进行描述。
例如，以第一终端的至少一个中继节点包括第一中继节点为例。接入网网元可以接收第一终端发送的第一业务数据，也可以接收第一中继节点发送的第一中继业务数据。接入网网元可以根据步骤301保存的对应关系，确定第一中继节点为第一终端的中继节点。进而将第一业务数据和第一中继业务数据均确定为第一终端的业务数据。
又例如，以第一终端的至少一个中继节点包括第一中继节点和第二中继节点为例。接入网网元可以接收第一中继节点发送的第一中继业务数据，也可以接收第二中继节点发送的第二中继业务数据。接入网网元可以根据步骤301保存的对应关系，确定第一中继节点和第二中继节点均为第一终端的中继节点。进而将第一中继业务数据和第二中继业务数据均确定为第一终端的业务数据。
步骤303、接入网网元通过QoS流将第一终端的业务数据发送给用户面网元。
具体的，接入网网元可以根据步骤301保存的对应关系确定第一终端对应的QoS流，将步骤302中接收到的第一终端的业务数据聚合后通过第一终端对应的QoS流发送给用户面网元。
进一步的，用户面网元可以将第一终端的业务数据转发给相应的应用服务器，由应用服务器对第一终端的业务数据进行处理。
基于图3所示的方法，本申请实施例中，接入网网元可以获取第一终端的标识信息，第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息，接入网网元在接收到第一终端发送的第一终端的业务数据和/或至少一个中继节点发送的第一终端的业务数据后，可以将第一终端发送的第一终端的业务数据和中继节点发送的第一终端的业务数据聚合在一起，通过第一终端对应的QoS流发送给用户面网元，从而提高传输资源利用率。
示例性的，在上述图3所示方法中，第一终端可以采用下述方式(1)至方式(2)中的任意一种确定第一终端的至少一个中继节点的标识信息，中继节点也可以采用下述方式(1)至方式(2)中的任意一种确定第一终端的标识信息：
方式(1)：第一终端可以发送广播消息(announcement message)，其中，广播消息可以包括第一终端的标识信息。除第一终端之外的其他终端接收到该广播信息后，可以根据自身网络资源等信息确定是否要与第一终端进行通信。如果某一终端确定要与第一终端进行通信，可以向第一终端发送包括自身的标识信息的响应消息。第一终端接收到至少一个终端发送的响应消息后，可以从中选择部分或全部终端作为第一终端的中继节点。
例如，以第一终端为UE1，其他终端包括UE2、UE3、UE4和UE5为例，UE1可以发送包括UE1的标识信息的广播消息。UE2、UE3、UE4和UE5接收到该广播消息后，可以根据自身网络资源等信息确定是否要与UE1进行通信。假设UE2、UE3和UE4确定要与UE1进行通信，UE2可以向UE1发送包括UE2的标识信息的响应消息，UE3可以向UE1发送包括UE3的标识信息的响应消息，UE4可以向UE1发送包括UE4的标识信息的响应消息。UE1接收到响应消息后，可以从UE2、UE3和UE4中选择部分或全部作为UE1的中继节点，即UE1的中继节点可以为UE2，或者为UE3，或者为UE4，或者为UE2和UE3，或者为UE2和UE4，或者为UE3和UE4，或者为UE2、UE3和UE4。
方式(2)：第一终端预先存储有其他终端的标识信息，当第一终端需要通过中继节点接入网络时，第一终端可以从预先存储的其他终端的标识信息中选择部分或全部终端的标识信息。第一终端可以将选择的终端的标识信息携带在广播消息(solicitation message)中发送出去，其中，第一终端可以发送至少一个广播消息，每个广播消息包括一个终端的标识信息，或者第一终端可以发送一个广播消息，该广播消息包括至少一个终端的标识信息。如果某一终端接收到广播消息后确定广播消息携带的标识信息与自身的标识信息匹配，可以根据自身网络资源等信息确定是否要与第一终端进行通信，如果确定要与第一终端进行通信，该终端可以向第一终端发送响应消息。第一终端接收到至少一个终端发送的响应消息后，可以从中选择部分或全部终端作为第一终端的中继节点。
例如，以第一终端为UE1，其他终端包括UE2、UE3、UE4和UE5为例，UE1预先存储有UE2的标识信息、UE3的标识信息、UE4的标识信息和UE5的标识信息。UE1在需要通过中继节点接入网络时，可以从UE2的标识信息、UE3的标识信息、UE4的标识信息和UE5的标识信息中选择部分或全部标识信息。假设UE1选择的标识信息包括UE2的标识信息、UE3的标识信息和UE4的标识信息，UE1可以发送广播消息1、广播消息2和广播消息3，其中，广播消息1包括UE2的标识信息，广播消息2包括UE3的标识信息，广播消息3包括UE4的标识信息。UE2接收到广播消息1后确定广播消息1中的标识信息与自身的标识信息匹配，UE3接收到广播消息2后确定广播消息2中的标识信息与自身的标识信息匹配，UE4接收到广播消息3后确定广播消息3中的标识信息与自身的标识信息匹配，UE2、UE3和UE4可以根据自身网络资源等信息确定是否要与UE1进行通信。假设UE2和UE3确定要与UE1进行通信，UE2可以向UE1发送响应消息，UE3可以向UE1发送响应消息。UE1接收到响应消息后，可以从UE2和UE3中选择部分或全部作为UE1的中继节点，即UE1的中继节点可以为UE2，或者为UE3，或者为UE2和UE3。
需要说明的是，终端接收到广播消息后确定广播消息携带的标识信息与自身的标识信息匹配可以是：终端确定广播消息携带的标识信息与自身的标识信息相同或对应，或者终端确定广播消息携带的标识信息包括自身的标识信息等，不予限制。
进一步的，在上述步骤301之前，本申请实施例还包括下述步骤301a：
步骤301a、会话管理网元获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息。
其中，会话管理网元可以通过移动性管理网元接收来自第一终端的第一终端的标识信息、第一终端的至少一个中继节点的标识信息；和/或，会话管理网元可以通过移动性管理网元接收来自至少一个中继节点的第一终端的标识信息、中继节点的标识信息。
可选的，当会话管理网元通过移动性管理网元接收来自第一终端的第一终端的标识信息、第一终端的至少一个中继节点的标识信息时，会话管理网元可以通过一个信息接收第一终端发送的第一终端的标识信息、第一终端的至少一个中继节点的标识信息，也可以通过多个信息接收第一终端发送的第一终端的标识信息、第一终端的至少一个中继节点的标识信息。
例如，以第一终端为UE1，第一终端的至少一个中继节点包括UE2、UE3和UE4为例，会话管理网元可以通过移动性管理网元接收UE1发送的UE1的标识信息、UE2 的标识信息、UE3的标识信息和UE4的标识信息；也可以通过移动性管理网元先接收UE1发送的UE1的标识信息、UE2的标识信息，再通过移动性管理网元接收UE1发送的UE1的标识信息、UE3的标识信息和UE4的标识信息。
又例如，以第一终端为UE1，第一终端的至少一个中继节点包括UE2、UE3和UE4为例。会话管理网元可以通过移动性管理网元接收UE2发送的UE1的标识信息、UE2的标识信息；也可以通过移动性管理网元接收UE3发送的UE1的标识信息、UE3的标识信息；也可以通过移动性管理网元接收UE4发送的UE1的标识信息、UE4的标识信息。
示例性的，会话管理网元通过移动性管理网元接收第一终端和/或中继节点发送的第一终端的标识信息、第一终端的至少一个中继节点的标识信息时，可以接收到数组形式的信息，也可以接收到表格形式的信息或者接收到其他形式的信息，不予限制。假设UE1需要通过移动性管理网元向会话管理网元发送UE1的标识信息、UE2的标识信息、UE3的标识信息和UE4的标识信息，以数组形式为例，会话管理网元可以通过移动性管理网元接收UE1发送的(UE1的标识信息，UE2的标识信息、UE3的标识信息、UE4的标识信息)。以表格形式为例，会话管理网元可以通过移动性管理网元接收UE1发送的下述表二：
表二
UE1的标识信息 UE2的标识信息、UE3的标识信息、UE4的标识信息
下面参照图4，对会话管理网元为第一终端建立的PDU会话确定第一终端对应的QoS流，并将第一终端的标识信息、第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息发送给接入网网元的过程进行详细描述。
图4为本申请实施例提供的一种通信方法的流程图，该方法包括：
步骤401、第一终端通过移动性管理网元向会话管理网元发送第一终端的标识信息、第一终端的至少一个中继节点的标识信息。相应的，会话管理网元接收第一终端的标识信息、第一终端的至少一个中继节点的标识信息。
一种可能的设计中，第一终端通过移动性管理网元向会话管理网元发送携带有第一终端的标识信息、第一终端的至少一个中继节点的标识信息的PDU会话建立请求。其中，该PDU会话建立请求用于请求为第一终端建立与第一终端的至少一个中继节点对应的PDU会话。
又一种可能的设计中，第一终端通过移动性管理网元向会话管理网元发送携带有第一终端的标识信息、第一终端的至少一个中继节点的标识信息的PDU会话修改请求。其中，该PDU会话修改请求用于请求通过第一终端建立的PDU会话传输第一终端的至少一个中继节点转发的第一终端的业务数据。
具体的，步骤401的具体描述可参照上述步骤301a，不予赘述。
步骤402、会话管理网元向策略控制网元发送请求消息。相应的，策略控制网元接收请求消息。
其中，该请求消息可以用于请求获取第一终端的策略信息，该请求消息可以包括会话标识、第一终端的标识信息、第一终端的至少一个中继节点的标识信息。
一种可能的设计中，该请求消息可以为会话管理策略建立请求(SM policy establishment request)。例如，当会话管理网元接收到第一终端通过移动性管理网元发送的PDU会话建 立请求时，会话管理网元向策略控制网元发送SM policy establishment request。
又一种可能的设计中，该请求消息可以为会话管理策略修改请求(SM policy modification request)。例如，当会话管理网元接收到第一终端通过移动性管理网元发送的PDU会话修改请求时，会话管理网元向策略控制网元发送SM policy modification request。
步骤403、策略控制网元向会话管理网元发送策略信息。相应的，会话管理网元接收策略信息。
其中，策略信息可以为策略与计费控制规则(policy and charging control rule，PCC规则)。
一种可能的设计中，当请求消息为SM policy establishment request时，策略信息可以携带在会话管理策略建立响应(SM policy establishment response)。
又一种可能的设计中，当请求消息为SM policy modification request时，策略信息可以携带在会话管理策略修改响应(SM policy modification response)。
步骤404、会话管理网元根据策略信息，确定第一终端对应的QoS流。
具体的，会话管理网元可以根据策略信息为第一终端创建新的QoS流，也可以对已有的QoS流进行修改，得到第一终端对应的QoS流，不予限制。
步骤405、会话管理网元向用户面网元发送第一终端的标识信息、第一终端对应的QoS流的信息。相应的，用户面网元接收第一终端的标识信息、第一终端对应的QoS流的信息。
可选的，会话管理网元通过移动性管理网元接收第一终端发送的第一终端的位置信息，根据第一终端的位置信息，确定第一终端的PDU会话对应的用户面网元。
一种可能的设计中，会话管理网元向用户面网元发送N4配置信息。相应的，用户面网元接收N4配置信息。
其中，N4配置信息可以为N4会话建立(session establishment)请求消息或者N4会话修改(session modification)消息。N4配置信息可以包括第一终端的标识信息、第一终端对应的QoS流的信息，还可以包括一些现有信息，如业务数据对应的处理策略、分组检测规则(packet detection rule，PDR)以及PDR关联的转发动作规则(forwarding action rule，FAR)、服务质量流(QoS流，QF)映射规则等其他信息，不予限制，这些信息的相关描述可参照现有技术，不予赘述。
可选的，当用户面网元接收到会话管理网元发送的N4会话建立请求消息时，用户面网元向会话管理网元发送N4会话建立请求响应，其中，N4会话建立请求响应包括用户面网元隧道信息。
进一步的，当用户面网元通过第一终端对应的QoS流接收到业务数据时，可以根据会话管理网元发送的第一终端的标识信息、第一终端对应的QoS流的信息，确定接收到的业务数据为第一终端的业务数据。
步骤406、会话管理网元通过移动性管理网元向接入网网元发送第一终端的标识信息、第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息。相应的，接入网网元接收第一终端的标识信息、第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息。
可选的，会话管理网元向移动性管理网元发送N1N2信息传送消息。相应的，移动性管理网元接收N1N2信息传送消息。其中，N1N2信息传送消息包括第一终端的标识信息、 第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息。
可选的，移动性管理网元向接入网网元发送N2会话请求。相应的，接入网网元接收N2会话请求。其中，N2会话请求包括第一终端的标识信息、第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息。
可选的，在为第一终端建立PDU会话过程中，会话管理网元还通过移动性管理网元向接入网网元发送用户面网元隧道信息。会话管理网元还通过移动性管理网元接收接入网网元发送的接入网网元隧道信息，并将接收到的接入网网元隧道信息发送给用户面网元，便于接入网网元与用户面网元建立连接。
需要说明的是，步骤406中对接入网网元接收第一终端的标识信息、第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息的具体描述可参照上述步骤301，不予赘述。
步骤407、接入网网元根据第一终端的标识信息、第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息，配置与第一终端和/或至少一个中继节点间的数据链路。
具体的，接入网网元可以通过接入网网元与第一终端的数据链路接收第一终端发送的第一终端的业务数据，接入网网元也可以通过接入网网元与中继节点间的数据链路接收中继节点转发的第一终端的业务数据。
步骤408、接入网网元接收第一终端的业务数据。
具体的，接入网网元可以采用下述步骤408a和/或步骤408b接收第一终端的业务数据。
步骤408a、接入网网元接收第一终端发送的第一终端的业务数据。
步骤408b、接入网网元接收各个中继节点转发的第一终端的业务数据。
具体的，上述步骤408a和步骤408b的具体描述可以参照上述步骤302，不予赘述。
步骤409、接入网网元将第一终端的业务数据聚合后，通过第一终端对应的QoS流发送给用户面网元。相应的，用户面网元接收第一终端的业务数据。
具体的，步骤409的描述具体参照上述步骤303，不予赘述。
步骤410、用户面网元将第一终端的业务数据发送给应用功能网元。
基于图4所示方法，接入网网元可以根据接收到的第一终端的标识信息、第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息，将第一终端和/或各个中继节点发送的第一终端的业务数据聚合后，通过第一终端对应的QoS流将第一终端的业务数据发送给用户面网元，实现网络侧设备对第一终端的业务数据聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
下面参照图5，对会话管理网元为中继节点建立的PDU会话确定第一终端对应的QoS流，并将第一终端的标识信息、第一终端的至少一个中继节点的标识信息、第一终端对应的QoS流的信息发送给接入网网元的过程进行详细描述。
图5为本申请实施例提供的一种通信方法的流程图，该方法包括：
步骤501、中继节点通过移动性管理网元向会话管理网元发送第一终端的标识信息、中继节点的标识信息。相应的，会话管理网元接收第一终端的标识信息、中继节点的标识信息。
一种可能的设计中，中继节点通过移动性管理网元向会话管理网元发送携带有第一终 端的标识信息、中继节点的标识信息的PDU会话建立请求。其中，该PDU会话建立请求用于请求为中继节点建立与第一终端对应的PDU会话。
又一种可能的设计中，中继节点通过移动性管理网元向会话管理网元发送携带有第一终端的标识信息、中继节点的标识信息的PDU会话修改请求。其中，该PDU会话修改请求用于请求通过中继节点建立的PDU会话传输第一终端的业务数据。
具体的，步骤501的具体描述可参照上述步骤301a，不予赘述。
步骤502、会话管理网元向策略控制网元发送请求消息。相应的，策略控制网元接收请求消息。
其中，该请求消息可以用于请求获取中继节点的策略信息，该请求消息可以包括会话标识、第一终端的标识、中继节点的标识信息。
一种可能的设计中，该请求消息可以为会话管理策略建立请求(SM policy establishment request)。例如，当会话管理网元接收到中继节点通过移动性管理网元发送的PDU会话建立请求时，向策略控制网元发送SM policy establishment request。
又一种可能的设计中，该请求消息可以为会话管理策略修改请求(SM policy modification request)。例如，当会话管理网元接收到中继节点通过移动性管理网元发送的PDU会话修改请求时，向策略控制网元发送SM policy modification request。
步骤503、策略控制网元向会话管理网元发送策略信息。相应的，会话管理网元接收策略信息。
具体的，步骤503的具体描述可参照上述步骤403，不予赘述。
步骤504、会话管理网元根据策略信息，确定第一终端对应的QoS流。
具体的，步骤504的具体描述可参照上述步骤404，不予赘述。
需要说明的是，会话管理网元在为各个中继节点的PDU会话确定第一终端对应的QoS流时，如果会话管理网元已经为其中一个中继节点的PDU会话确定了第一终端对应的QoS流，会话管理网元在为其他中继节点的PDU会话确定第一终端对应的QoS流时，可以将之前已经确定的第一终端的QoS流确定为该其他中继节点的PDU会话对应的QoS流，使得接入网网元可以将第一终端的业务数据聚合到该QoS流发送给用户面网元。
例如，假设会话管理网元为第一中继节点的PDU会话确定第一终端对应的QoS流为QoS流1，当会话管理网元为第二中继节点的PDU会话确定第一终端对应的QoS流时，可以将QoS流1确定为第二中继节点的PDU会话中第一终端对应的QoS流。
步骤505、会话管理网元向用户面网元发送第一终端的标识信息、第一终端对应的QoS流的信息。相应的，用户面网元接收第一终端的标识信息、第一终端对应的QoS流的信息。
可选的，会话管理网元通过移动性管理网元接收中继节点发送的第一终端的位置信息，根据第一终端的位置信息，确定第一终端的PDU会话对应的用户面网元。
具体的，步骤505的具体描述可参照上述步骤405，不予赘述。
需要说明的是，当会话管理网元已经为某一中继节点确定第一终端对应的QoS流后，会话管理网元在为其他中继节点确定第一终端对应的QoS流时，可以将之前已经确定的第一终端的QoS流确定为该其他中继节点的PDU会话对应的第一终端对应的QoS流。
步骤506、会话管理网元通过移动性管理网元向接入网网元发送第一终端的标识信息、中继节点的标识信息、第一终端对应的QoS流的信息。相应的，接入网网元接收第一终端 的标识信息、中继节点的标识信息、第一终端对应的QoS流的信息。
具体的，步骤506的具体描述可参照上述步骤406，不予赘述。
步骤507、接入网网元根据第一终端的标识信息、中继节点的标识信息、第一终端对应的QoS流的信息，配置与第一终端和/或中继节点间的数据链路。
具体的，接入网网元可以通过接入网网元与第一终端的数据链路接收第一终端发送的第一终端的业务数据，接入网网元也可以通过接入网网元与中继节点间的数据链路接收中继节点转发的第一终端的业务数据。
需要说明的是，可以采用上述步骤501-步骤507为第一终端的每个中继节点建立支持转发第一终端的业务数据的PDU会话，并配置各个中继节点与接入网网元的数据链路。
步骤508、接入网网元接收第一终端的业务数据。
具体的，接入网网元可以采用下述步骤508a和/或步骤508b接收第一终端的业务数据。
步骤508a、接入网网元接收第一终端发送的第一终端的业务数据。
步骤508b、接入网网元接收各个中继节点转发的第一终端的业务数据。
具体的，上述步骤508a和步骤508b的具体描述可以参照上述步骤302，不予赘述。
步骤509、接入网网元将第一终端的业务数据聚合后，通过第一终端对应的QoS流发送给用户面网元。相应的，用户面网元接收第一终端的业务数据。
具体的，步骤509的描述具体参照上述步骤303，不予赘述。
步骤510、用户面网元将第一终端的业务数据发送给应用功能网元。
基于图5所示方法，接入网网元可以根据接收到的第一终端的标识信息、中继节点的标识信息、第一终端对应的QoS流的信息，将第一终端和/或各个中继节点发送的第一终端的业务数据聚合后，通过第一终端对应的QoS流将第一终端的业务数据发送给用户面网元，实现网络侧设备对第一终端的业务数据聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
上述图3-图5描述的是第一终端与第一终端的各个中继节点对应同一个接入网网元时，接入网网元对第一终端的业务数据进行聚合后通过第一终端对应的QoS流发送给用户面网元的通信方法。如图6所示，当第一终端的中继节点对应不同的接入网网元时，用户面网元可以采用下述图6-图8所示方法对第一终端的业务数据进行聚合，并将聚合后的第一终端的业务数据发送给应用服务器。
图6为本申请实施例提供的一种通信方法，图6所示方法中，第一终端的各个中继节点可以对应不同的接入网网元。例如，参照图6a，以第一终端为UE1，第一终端的至少一个中继节点包括UE2、UE3和UE4为例，UE2建立的PDU会话可以对应接入网网元1，UE3和UE4建立的PDU会话可以对应接入网网元2。需要说明的是，会话管理网元在为各个中继节点建立PDU会话时，可以根据各个中继节点的位置信息，确定可以同时为各个中继节点提供PDU会话服务的用户面网元，以使用户面网元可以接收到各个中继节点通过PDU会话转发的第一终端的业务数据。
如图6所示，该方法可以包括：
步骤601、用户面网元获取第一终端的标识信息、中继节点的标识信息、中继节点对应的QoS流的信息。
本申请实施例中，为了满足第一终端的业务数据的传输需求等QoS需求，可以将中继 节点与支持传输第一终端的业务数据的QoS流对应起来，以使接入网网元可以将接收到的来自中继节点的第一终端的业务数据通过中继节点对应的QoS流发送给用户面网元。
一种可能的设计，中继节点对应的QoS流可以为会话管理网元为第一终端建立PDU会话时，为中继节点确定的QoS流，即会话管理网元为第一终端建立的PDU会话可以对应多个QoS流，该QoS流可以用于接入网网元与用户面网元之间传输第一终端的业务数据，该QoS流的QoS参数满足其上传输的第一终端的业务数据的QoS需求。示例性的，会话管理网元可以在为第一终端建立该PDU会话时，建立与中继节点对应的QoS流，并将建立的中继节点对应的QoS流的信息发送给用户面网元；或者，会话管理网元为第一终端建立PDU会话之后，修改该PDU会话，包括修改或增加PDU会话的QoS流，使修改或增加后的QoS流与中继节点对应，满足第一终端的业务数据的传输需求等QoS需求，并将修改或增加后的中继节点对应的QoS流的信息发送给用户面网元。具体的，会话管理网元为第一终端的PDU会话确定中继节点对应的QoS流，并将中继节点对应的QoS流的信息发送给用户面网元的过程可参照下述图7所示方法。
又一种可能的设计，上述QoS流也可以为中继节点建立的PDU会话对应的QoS流，QoS流可以用于接入网网元与用户面网元之间传输第一终端的业务数据，该QoS流的QoS参数满足其上传输的第一终端的业务数据的QoS需求。示例性的，会话管理网元可以在为中继节点建立PDU会话时，建立与中继节点对应的QoS流，并将建立的中继节点对应的QoS流的信息发送给用户面网元；或者，会话管理网元为中继节点建立PDU会话之后，修改该PDU会话，包括修改或增加PDU会话的QoS流，使修改或增加后的QoS流与中继节点对应，满足第一终端的业务数据的传输需求等QoS需求，并将修改或增加后的中继节点对应的QoS流的信息发送给用户面网元。具体的，会话管理网元为中继节点的PDU会话确定中继节点对应的QoS流，并将中继节点对应的QoS流的信息发送给用户面网元的过程可参照下述图8所示方法。
示例性的，会话管理网元可以获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息，根据中继节点的标识信息确定中继节点对应的QoS流的信息，并将第一终端的标识信息、第一终端的至少一个中继节点的标识信息、中继节点对应的QoS流的信息携带在同一信息，如第一信息中发送给用户面网元。或者，会话管理网元也可以将第一终端的标识信息、第一终端的至少一个中继节点的标识信息、中继节点对应的QoS流的信息携带在至少一个信息中，如第一信息和第二信息中发送给用户面网元。第一信息可以包括第一终端的标识信息、第一中继节点的标识信息、第一中继节点对应的QoS流的信息。第二信息可以包括第一终端的标识信息、第二中继节点的标识信息、第一中继节点对应的QoS流的信息。可以理解的是，当第一终端的至少一个中继节点包括第三中继节点时，用户面网元还可以接收来自会话管理网元的第三信息，本申请实施例中仅以第一终端的中继节点包括第一中继节点和第二中继节点为例进行描述。
其中，会话管理网元获取获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息可以参照上述步骤301a，不予赘述。
例如，以第一终端为UE1、第一终端的至少一个中继节点包括UE2、UE3和UE4为例，会话管理网元可以获取UE1的标识信息、UE2的标识信息、UE3的标识信息和UE4的标识信息，根据UE2的标识信息确定UE2对应的QoS流的信息；根据UE3的 标识信息确定UE3对应的QoS流的信息；根据UE4的标识信息确定UE4对应的QoS流的信息；并将UE1的标识信息，UE2的标识信息、UE3的标识信息、UE4的标识信息，UE2对应的QoS流的信息、UE3对应的QoS流的信息、UE4对应的QoS流的信息作为第一信息发送给用户面网元，以使用户面网元根据第一信息，将各个中继节点对应的QoS流与第一终端关联。
又例如，以第一终端为UE1，第一中继节点为UE2，第二中继节点为UE3为例。会话管理网元可以获取UE1的标识信息、UE2的标识信息、UE3的标识信息，根据UE2的标识信息确定UE2对应的QoS流的信息；根据UE3的标识信息确定UE3对应的QoS流的信息；并将UE1的标识信息，UE2的标识信息，UE2对应的QoS流的信息作为第一信息，将UE1的标识信息，UE3的标识信息，UE3对应的QoS流的信息作为第二信息发送给用户面网元，以使用户面网元根据第一信息、第二信息将各个中继节点对应的QoS流与第一终端关联。
步骤602、用户面网元通过QoS流接收第一终端的业务数据。
具体的，用户面网元可以通过各个QoS流接收到各个接入网网元发送的业务数据，用户面网元可以判断各个QoS流是否与第一终端关联，如果关联，将QoS流上传输的业务数据确定为第一终端的业务数据。
例如，以第一终端的中继节点包括第一中继节点和第二中继节点，且第一中继节点对应第一QoS流，第二中继节点对应第二QoS流为例。用户面网元可以通过第一QoS流接收第一中继业务数据，通过第二QoS流接收第二中继业务数据。用户面网元根据接收到的第一终端的至少一个中继节点的标识信息、以及中继节点对应的QoS流的信息，确定第一QoS流与第二QoS流均与第一终端关联，则将第一中继业务数据与第二中继业务数据确定为第一终端的业务数据。
步骤603、用户面网元将第一终端的业务数据聚合后发送给应用服务器。
具体的，用户面网元可以采用上述步骤602将接收到的各个中继节点发送的中继业务数据确定为第一终端的业务数据，并将各个中继业务数据聚合后发送给应用服务器。从而通过用户面网元实现网络侧设备对第一终端的业务数据的聚合，并通过同一传输路径传输，提高传输资源利用率。
示例性的，在上述图6所示方法中，会话管理网元可以采用下述方式一至方式二中的任意一种确定中继节点对应的QoS流：
方式一：对应于同一接入网网元的中继节点对应同一个QoS流，对应不同接入网网元的中继节点对应不同的QoS流。
其中，由于第一终端的各个中继节点可以对应不同的接入网网元，会话管理网元在为不同的中继节点建立PDU会话时，可以将对应于同一接入网网元的中继节点对应同一个QoS流，对应不同接入网网元的中继节点对应不同的QoS流。
例如，如图6a所示，以第一终端为UE1，UE1的至少一个中继节点包括UE2、UE3、UE4，且UE2对应接入网网元1，UE3和UE4对应接入网网元2为例，在为UE2、UE3和UE4建立PDU会话时，可以采用上述图3-图5所示方法将UE2对应QoS流1，采用上述图3-图5所示方法将UE3和UE4对应QoS流2。以使接入网网元1接收到UE2转发的UE1的业务数据后，通过QoS流1转发给用户面网元。接入网网元2接收到UE3和UE4 转发的UE1的业务数据后，对UE1的业务数据进行聚合后通过QoS流2发送给用户面网元。
方式二：不同的中继节点对应不同的QoS流。
其中，由于第一终端的各个中继节点可以对应不同的接入网网元，会话管理网元在为不同的中继节点建立PDU会话时，可以将不同的中继节点对应不同的QoS流。
例如，如图6a所示，以第一终端为UE1，UE1的至少一个中继节点包括UE2、UE3、UE4，且UE2对应接入网网元1，UE3和UE4对应接入网网元2为例，在为UE2、UE3和UE4建立PDU会话时，可以将UE2对应QoS流1，将UE3对应QoS流2，将UE4对应QoS流3。以使接入网网元1接收到UE2转发的UE1的业务数据后，通过QoS流1转发给用户面网元。接入网网元2接收到UE3转发的UE1的业务数据后，通过QoS流2转发给用户面网元。接入网网元2接收到UE4转发的UE1的业务数据后，通过QoS流3转发给用户面网元。
下面参照图7，对会话管理网元为第一终端建立的PDU会话确定中继节点对应的QoS流，并将第一终端的标识信息、中继节点的标识信息、中继节点对应的QoS流的信息发送给用户面网元的过程进行详细描述。
图7为本申请实施例提供的一种通信方法的流程图，该方法包括：
步骤701、第一终端通过移动性管理网元向会话管理网元发送第一终端的标识信息、第一终端的至少一个中继节点的标识信息。相应的，会话管理网元接收第一终端的标识信息、第一终端的至少一个中继节点的标识信息。
具体的，步骤701的具体描述可参照上述步骤401，不予赘述。
步骤702、会话管理网元向策略控制网元发送请求消息。相应的，策略控制网元接收请求消息。
具体的，步骤702的具体描述可参照上述步骤402，不予赘述。
步骤703、策略控制网元向会话管理网元发送策略信息。相应的，会话管理网元接收策略信息。
具体的，步骤703的具体描述可参照上述步骤403，不予赘述。
步骤704、会话管理网元根据策略信息，确定各个中继节点对应的QoS流。
具体的，会话管理网元可以根据策略信息为各个中继节点创建新的QoS流，也可以对已有的QoS流进行修改，得到各个中继节点对应的QoS流，不予限制。
需要说明的是，中继节点与QoS流的对应关系可参照上述申请实施例所示，不予赘述。
步骤705、会话管理网元向用户面网元发送第一终端的标识信息、第一终端的至少一个中继节点的标识信息、各个中继节点对应的QoS流的信息。相应的，用户面网元接收第一终端的标识信息、第一终端的至少一个中继节点的标识信息、各个中继节点对应的QoS流的信息。
可选的，会话管理网元根据各个中继节点的位置信息，确定第一终端的PDU会话对应的用户面网元。
一种可能的设计中，会话管理网元向用户面网元发送N4配置信息。相应的，用户面网元接收N4配置信息。
其中，N4配置信息可以为N4会话建立(session establishment)请求消息或者N4会 话修改(session modification)消息。N4配置信息可以包括第一终端的标识信息、第一终端的至少一个中继节点的标识信息、各个中继节点对应的QoS流的信息，还可以包括一些现有信息，如业务数据对应的处理策略、分组检测规则(packet detection rule，PDR)以及PDR关联的转发动作规则(forwarding action rule，FAR)、服务质量流(QoS流，QF)映射规则等其他信息，不予限制，这些信息的相关描述可参照现有技术，不予赘述。
具体的，步骤705的具体描述可参照上述步骤601，不予赘述。
步骤706、会话管理网元通过移动性管理网元向各个中继节点对应的接入网网元发送第一终端的标识信息、中继节点的标识信息、中继节点对应的QoS流的信息。相应的，接入网网元接收第一终端的标识信息、中继节点的标识信息、中继节点对应的QoS流的信息。
例如，以第一终端的至少一个中继节点包括第一中继节点和第二中继节点，且第一中继节点对应第一接入网网元，第二中继节点对应第二接入网网元为例，步骤706包括下述步骤706a和步骤706b。
步骤706a、会话管理网元通过移动性管理网元向第一接入网网元发送第一终端的标识信息、第一中继节点的标识信息、第一中继节点对应的QoS流的信息。
步骤706b、会话管理网元通过移动性管理网元向第二接入网网元发送第一终端的标识信息、第二中继节点的标识信息、第二中继节点对应的QoS流的信息。
具体的，步骤706可参照上述步骤406的具体描述，不予赘述。
步骤707、接入网网元根据第一终端的标识信息、中继节点的标识信息、中继节点对应的QoS流的信息，配置与第一终端和/或中继节点间的数据链路。
对应于上述步骤706a和步骤706b，步骤707也可以包括步骤707a和步骤707b。
步骤707a、第一接入网网元可以配置与第一终端和/或第一中继节点的数据链路。
步骤707b、第二接入网网元可以配置与第一终端和/或第二中继节点的数据链路。
具体的，步骤707的具体描述可参照上述步骤407，不予赘述。
步骤708、接入网网元接收第一终端的业务数据。
对应于上述706和步骤707，步骤708也可以包括下述步骤708a和步骤708b。
步骤708a、第一接入网网元接收第一终端和/或第一中继节点发送的第一终端的业务数据。
步骤708b、第二接入网网元接收第一终端和/或第二中继节点发送的第一终端的业务数据。
具体的，步骤708的具体描述可以参照上述步骤408，不予赘述。
步骤709、接入网网元将第一终端的业务数据聚合后，通过第一终端对应的QoS流发送给用户面网元。相应的，用户面网元接收第一终端的业务数据。
对应于上述步骤706-步骤708，步骤709也可以包括下述步骤709a和步骤709b。
步骤709a、第一接入网网元通过第一中继节点对应的QoS流将第一终端的业务数据发送给用户面网元。
步骤709b、第二接入网网元通过第二中继节点对应的QoS流将第一终端的业务数据发送给用户面网元。
具体的，步骤709的描述具体参照上述步骤602，不予赘述。
步骤710、用户面网元将第一终端的业务数据聚合后发送给应用功能网元。
具体的，步骤710的具体描述可以参照上述步骤603，不予赘述。
基于图7所示方法，用户面网元可以根据接收到的第一终端的标识信息、第一终端的至少一个中继节点的标识信息、中继节点对应的QoS流的信息，将第一终端和/或各个中继节点发送的第一终端的业务数据聚合后，发送给应用服务器元，实现网络侧设备对第一终端的业务数据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
下面参照图8，对会话管理网元为中继节点建立的PDU会话确定中继节点对应的QoS流，并将第一终端的标识信息、中继节点的标识信息、中继节点对应的QoS流的信息发送给用户面网元的过程进行详细描述。
图8为本申请实施例提供的一种通信方法的流程图，该方法包括：
步骤801、中继节点通过移动性管理网元向会话管理网元发送第一终端的标识信息、中继节点的标识信息。相应的，会话管理网元接收第一终端的标识信息、中继节点的标识信息。
以中继节点包括第一中继节点和第二中继节点，且第一中继节点对应第一接入网网元，第二中继节点对应第二接入网网元为例，步骤801可以包括下述步骤801a和步骤801b。
步骤801a、第一中继节点通过移动性管理网元向会话管理网元发送第一终端的标识信息、第一中继节点的标识信息。
步骤801b、第二中继节点通过移动性管理网元向会话管理网元发送第一终端的标识信息、第二中继节点的标识信息。
具体的，步骤801的具体描述可以参照上述步骤501，不予赘述。
步骤802、会话管理网元向策略控制网元发送请求消息。相应的，策略控制网元接收请求消息。
具体的，步骤802的具体描述可以参照上述步骤502，不予赘述。
步骤803、策略控制网元向会话管理网元发送策略信息。相应的，会话管理网元接收策略信息。
具体的，步骤803的具体描述可参照上述步骤503，不予赘述。
步骤804、会话管理网元根据策略信息，确定中继节点对应的QoS流。
具体的，步骤804的具体描述可参照上述步骤704，不予限制。
需要说明的是，会话管理网元在为每个中继节点建立PDU会话时，均可以按照上述步骤801-步骤804为中继节点确定中继节点对应的QoS流。
需要说明的是，会话管理网元在为各个中继节点的PDU会话确定中继节点对应的QoS流时，如果会话管理网元已经为其中一个中继节点的PDU会话确定了第一终端对应的QoS流，会话管理网元在为与该中继节点对应同一个接入网网元的其他中继节点的PDU会话确定中继节点对应的QoS流时，可以将之前已经确定的QoS流确定为该其他中继节点的PDU会话对应的QoS流，使得接入网网元可以将第一终端的业务数据聚合到同一个QoS流发送给用户面网元。
例如，假设会话管理网元为第一中继节点的PDU会话确定第一终端对应的QoS流为QoS流1，当会话管理网元为与第一中继节点对应同一个接入网网元的第二中继节点的PDU会话确定第一终端对应的QoS流时，可以将QoS流1确定为第二中继节点的PDU会 话中第一终端对应的QoS流。
步骤805、会话管理网元向用户面网元发送第一终端的标识信息、中继节点的标识信息、中继节点对应的QoS流的信息。相应的，用户面网元接收第一终端的标识信息、中继节点的标识信息、中继节点对应的QoS流的信息。
具体的，步骤805的具体描述可参照上述步骤705，不予赘述。
步骤806、会话管理网元通过移动性管理网元向接入网网元发送第一终端的标识信息、中继节点的标识信息、中继节点对应的QoS流的信息。相应的，接入网网元接收第一终端的标识信息、中继节点的标识信息、中继节点对应的QoS流的信息。
对应于上述步骤801a和步骤801b，步骤806可以包括下述步骤806a和步骤806b。
步骤806a、会话管理网元通过移动性管理网元向第一接入网网元发送第一终端的标识信息、第一中继节点的标识信息、第一中继节点对应的QoS流的信息。
步骤806b、会话管理网元通过移动性管理网元向第二接入网网元发送第一终端的标识信息、第二中继节点的标识信息、第二中继节点对应的QoS流的信息。
具体的，步骤806的具体描述可参照上述步骤706，不予赘述。
步骤807、接入网网元根据第一终端的标识信息、中继节点的标识信息、中继节点对应的QoS流的信息，配置与第一终端和/或中继节点间的数据链路。
对应于上述步骤806a和步骤806b，步骤807也可以包括步骤807a和步骤807b。
步骤807a、第一接入网网元可以配置与第一终端和/或第一中继节点的数据链路。
步骤807b、第二接入网网元可以配置与第一终端和/或第二中继节点的数据链路。
具体的，步骤807的具体描述可参照上述步骤707，不予赘述。
步骤808、接入网网元接收第一终端的业务数据。
对应于上述806和步骤807，步骤808也可以包括下述步骤808a和步骤808b。
步骤808a、第一接入网网元接收第一终端和/或第一中继节点发送的第一终端的业务数据。
步骤808b、第二接入网网元接收第一终端和/或第二中继节点发送的第一终端的业务数据。
具体的，步骤808的具体描述可以参照上述步骤708，不予赘述。
步骤809、接入网网元将第一终端的业务数据聚合后，通过第一终端对应的QoS流发送给用户面网元。相应的，用户面网元接收第一终端的业务数据。
对应于上述步骤806-步骤808，步骤809也可以包括下述步骤809a和步骤809b。
步骤809a、第一接入网网元通过第一中继节点对应的QoS流将第一终端的业务数据发送给用户面网元。
步骤809b、第二接入网网元通过第二中继节点对应的QoS流将第一终端的业务数据发送给用户面网元。
具体的，步骤809的描述具体参照上述步骤602，不予赘述。
步骤810、用户面网元将第一终端的业务数据聚合后发送给应用功能网元。
具体的，步骤810的具体描述可以参照上述步骤603，不予赘述。
基于图8所示方法，用户面网元可以根据接收到的第一终端的标识信息、第一终端的至少一个中继节点的标识信息、中继节点对应的QoS流的信息，将第一终端和/或各个中 继节点发送的第一终端的业务数据聚合后，发送给应用服务器元，实现网络侧设备对第一终端的业务数据的聚合，并通过同一传输路径传输第一终端的业务数据，提高传输资源利用率。
上述主要从设备之间交互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，各个设备为了实现上述功能，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各个网元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。
在采用对应各个功能划分各个功能模块的情况下，图9示出了一种通信装置，通信装置90可以为接入网网元或者接入网网元中的芯片或者片上系统。该通信装置90可以用于执行上述实施例中涉及的接入网网元的功能。图9所示通信装置90包括：接收模块901、发送模块902。
接收模块901，用于获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息、以及第一终端对应的QoS流的信息；QoS流用于传输第一终端的业务数据；中继节点用于转发第一终端的业务数据。
接收模块901，还用于接收第一终端的业务数据；第一终端的业务数据包括至少一个中继节点转发的第一终端的业务数据。
发送模块902，用于通过QoS流将第一终端的业务数据发送给用户面网元。
其中，该通信装置90的具体实现方式可参考图3-图8所述通信方法中接入网网元的行为功能。
一种可能的设计中，接收模块901，还用于接收来自移动性管理网元的包括第一终端的标识信息、至少一个中继节点的标识信息、以及QoS流的信息的第一信息。
一种可能的设计中，接收模块901，还用于接收来自移动性管理网元的包括第一终端的标识信息、第一中继节点的标识信息、以及QoS流的信息的第一信息；接收模块901，还用于接收来自移动性管理网元的包括第一终端的标识信息、第二中继节点的标识信息、以及QoS流的信息的第二信息；至少一个中继节点包括第一中继节点和第二中继节点。
一种可能的设计中，通信装置还包括处理模块903，其中，接收模块901，还用于接收来自第一终端的第一业务数据，以及接收来自至少一个中继节点的中继业务数据；处理模块903，用于根据第一终端的标识信息、至少一个中继节点的标识信息，确定第一业务数据和中继业务数据均为第一终端的业务数据；发送模块902，用于通过QoS流将第一终端的业务数据发送给用户面网元。
一种可能的设计中，接收模块901，用于接收来自第一中继节点的第一中继业务数据， 以及接收来自第二中继节点的第二中继业务数据；其中，至少一个中继节点包括第一中继节点和第二中继节点；处理模块903，用于根据第一终端的标识信息、至少一个中继节点的标识信息，确定第一中继业务数据和第二中继业务数据均为第一终端的业务数据；发送模块902，用于通过QoS流将第一终端的业务数据发送给用户面网元。
作为又一种可实现方式，图9中的接收模块901、发送模块902可以由收发器代替，该收发器可以集成接收模块901、发送模块902的功能。进一步的，图9所示通信装置90还可以包括存储器。当接收模块901、发送模块902由收发器代替时，本申请实施例所涉及的通信装置90可以为图2所示通信装置。
在采用对应各个功能划分各个功能模块的情况下，图10示出了一种通信装置，通信装置100可以为用户面网元或者用户面网元中的芯片或者片上系统。该通信装置100可以用于执行上述实施例中涉及的用户面网元的功能。图10所示通信装置100包括：接收模块1001、发送模块1002。
接收模块1001，用于获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息、以及至少一个中继节点对应的至少一个QoS流的信息；其中，中继节点用于转发第一终端的业务数据；QoS流用于传输中继节点转发的第一终端的业务数据。
接收模块1001，还用于通过至少一个QoS流接收第一终端的业务数据；其中，第一终端的业务数据包括至少一个中继节点转发的第一终端的业务数据。
发送模块1002，用于将第一终端的业务数据聚合后发送给应用服务器。
其中，该通信装置100的具体实现方式可参考图3-图8所述通信方法中用户面网元的行为功能。
一种可能的设计中，至少一个中继节点对应的至少一个QoS流的信息，包括：不同的中继节点对应不同的QoS流；或者对应同一接入网网元的中继节点对应相同的QoS流，对应不同接入网网元的中继节点对应不同的QoS流。
一种可能的设计中，接收模块1001，还用于接收来自会话管理网元的包括第一终端的标识信息、至少一个中继节点的标识信息、以及至少一个QoS流的信息的第一信息。
一种可能的设计中，接收模块1001，还用于接收来自会话管理网元的包括第一终端的标识信息、第一中继节点的标识信息、以及第一中继节点对应的QoS流的信息的第一信息；接收模块1001，还用于接收来自会话管理网元的包括第一终端的标识信息、第二中继节点的标识信息、以及第二中继节点对应的QoS流的信息的第二信息；至少一个中继节点包括第一中继节点和第二中继节点。
一种可能的设计中，接收模块1001，还用于通过与第一中继节点对应的第一QoS流接收第一中继业务数据，以及通过与第二中继节点对应的第二QoS流接收第二中继业务数据；接收模块1001，还用于根据第一终端的至少一个中继节点的标识信息、以及中继节点对应的QoS流的信息，确定第一中继业务数据与第二中继业务数据均为第一终端的业务数据；用户面网元将第一中继业务数据和第二中继业务数据聚合后发送给应用服务器。
作为又一种可实现方式，图10中的接收模块1001、发送模块1002可以由收发器代替，该收发器可以集成接收模块1001、发送模块1002的功能。进一步的，图10所示通信装置100还可以包括存储器。当接收模块1001、发送模块1002由收发器代替时，本申请实施例所涉及的通信装置100可以为图2所示通信装置。
在采用对应各个功能划分各个功能模块的情况下，图11示出了一种通信装置，通信装置110可以为会话管理网元或者会话管理网元中的芯片或者片上系统。该通信装置110可以用于执行上述实施例中涉及的会话管理网元的功能。图11所示通信装置110包括：接收模块1101、发送模块1102。
接收模块1101，用于获取第一终端的标识信息、第一终端的至少一个中继节点的标识信息。
发送模块1102，用于向核心网网元发送第一终端的标识信息、第一终端的至少一个中继节点的标识信息、以及服务质量QoS流的信息；其中，中继节点用于转发第一终端的业务数据；QoS流用于传输第一终端的业务数据；第一终端的业务数据包括至少一个中继节点转发的第一终端的业务数据。
其中，该通信装置110的具体实现方式可参考图3-图8所述通信方法中会话管理网元的行为功能。
一种可能的设计中，当核心网网元为移动性管理网元时，发送模块1102，具体用于向移动性管理网元发送第一信息；其中，第一信息包括第一终端的标识信息、至少一个中继节点的标识信息、以及第一终端对应的QoS流的信息；或者发送模块1102，具体用于向移动性管理网元发送第一信息和第二信息；其中，第一信息包括第一终端的标识信息、第一中继节点的标识信息、以及第一终端对应的QoS流的信息；第二信息包括第一终端的标识信息、第二中继节点的标识信息、以及第一终端对应的QoS流的信息；至少一个中继节点包括第一中继节点和第二中继节点。
一种可能的设计中，当核心网网元为用户面网元时，发送模块1102，具体用于向用户面网元发送包括第一终端的标识信息、至少一个中继节点的标识信息、以及至少一个中继节点对应的至少一个QoS流的信息的第一信息；或者发送模块1102，具体用于向用户面网元发送包括第一终端的标识信息、第一中继节点的标识信息、以及第一中继节点对应的QoS流的信息的第一信息和包括第一终端的标识信息、第二中继节点的标识信息、以及第二中继节点对应的QoS流的信息的第二信息；至少一个中继节点包括第一中继节点和第二中继节点。
一种可能的设计中，通信装置还包括处理模块1103，其中，接收模块1101，还用于接收来自移动性管理网元的至少一个中继节点的位置信息；处理模块1103，用于根据至少一个中继节点的位置信息确定用户面网元。
作为又一种可实现方式，图11中的接收模块1101、发送模块1102可以由收发器代替，该收发器可以集成接收模块1101、发送模块1102的功能。进一步的，图11所示通信装置110还可以包括存储器。当接收模块1101、发送模块1102由收发器代替时，本申请实施例所涉及的通信装置110可以为图2所示通信装置。
本申请实施例还提供了一种计算机可读存储介质。上述方法实施例中的全部或者部分流程可以由计算机程序来指令相关的硬件完成，该程序可存储于上述计算机可读存储介质中，该程序在执行时，可包括如上述各方法实施例的流程。计算机可读存储介质可以是前述任一实施例的终端(包括数据发送端和/或数据接收端)的内部存储单元，例如终端的硬盘或内存。上述计算机可读存储介质也可以是上述终端的外部存储设备，例如上述终端上配备的插接式硬盘，智能存储卡(smart media card,SMC)，安全数字(secure digital,SD) 卡，闪存卡(flash card)等。进一步地，上述计算机可读存储介质还可以既包括上述终端的内部存储单元也包括外部存储设备。上述计算机可读存储介质用于存储上述计算机程序以及上述终端所需的其他程序和数据。上述计算机可读存储介质还可以用于暂时地存储已经输出或者将要输出的数据。
需要说明的是，本申请的说明书、权利要求书及附图中的术语“第一”和“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
应当理解，在本申请中，“至少一个(项)”是指一个或者多个，“多个”是指两个或两个以上，“至少两个(项)”是指两个或三个及三个以上，“和/或”，用于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：只存在A，只存在B以及同时存在A和B三种情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，“a和b”，“a和c”，“b和c”，或“a和b和c”，其中a，b，c可以是单个，也可以是多个。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，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，例如多个单元或组件可以结合或者可以集成到另一个装置，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是一个物理单元或多个物理单元，即可以位于一个地方，或者也可以分布到多个不同地方。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该软件产品存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。 而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (20)

  1. 一种通信方法，其特征在于，包括：
    接入网网元获取第一终端的标识信息、所述第一终端的至少一个中继节点的标识信息、以及所述第一终端对应的服务质量QoS流的信息；其中，所述QoS流用于传输所述第一终端的业务数据；所述中继节点用于转发所述第一终端的业务数据；
    所述接入网网元接收所述第一终端的业务数据；其中，所述第一终端的业务数据包括所述至少一个中继节点转发的所述第一终端的业务数据；
    所述接入网网元通过所述QoS流将所述第一终端的业务数据发送给用户面网元。
  2. 根据权利要求1所述的方法，其特征在于，所述接入网网元获取所述第一终端的标识信息、所述至少一个中继节点的标识信息、以及所述QoS流的信息，包括：
    所述接入网网元接收来自移动性管理网元的第一信息；其中，所述第一信息包括所述第一终端的标识信息、所述至少一个中继节点的标识信息、以及所述QoS流的信息。
  3. 根据权利要求1所述的方法，其特征在于，所述接入网网元获取所述第一终端的标识信息、所述至少一个中继节点的标识信息、以及所述QoS流的信息，包括：
    所述接入网网元接收来自移动性管理网元的第一信息；其中，所述第一信息包括所述第一终端的标识信息、第一中继节点的标识信息、以及所述QoS流的信息；所述至少一个中继节点包括所述第一中继节点；
    所述接入网网元接收来自移动性管理网元的第二信息；其中，所述第二信息包括所述第一终端的标识信息、第二中继节点的标识信息、以及所述QoS流的信息；所述至少一个中继节点包括所述第二中继节点。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，所述接入网网元接收所述第一终端的业务数据，通过所述QoS流将所述第一终端的业务数据发送给用户面网元，包括：
    所述接入网网元接收来自第一终端的第一业务数据，以及接收来自所述至少一个中继节点的中继业务数据；
    所述接入网网元根据所述第一终端的标识信息、所述至少一个中继节点的标识信息，确定所述第一业务数据和所述中继业务数据均为所述第一终端的业务数据；
    所述接入网网元通过所述QoS流将所述第一终端的业务数据发送给所述用户面网元。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述接入网网元接收所述第一终端的业务数据，通过所述QoS流将所述第一终端的业务数据发送给用户面网元，包括：
    所述接入网网元接收来自第一中继节点的第一中继业务数据，以及接收来自第二中继节点的第二中继业务数据；其中，所述至少一个中继节点包括所述第一中继节点和所述第二中继节点；
    所述接入网网元根据所述第一终端的标识信息、所述至少一个中继节点的标识信息，确定所述第一中继业务数据和所述第二中继业务数据均为所述第一终端的业务数据；
    所述接入网网元通过所述QoS流将所述第一终端的业务数据发送给所述用户面网元。
  6. 一种通信方法，其特征在于，所述方法包括：
    用户面网元获取第一终端的标识信息、所述第一终端的至少一个中继节点的标识信息、以及所述至少一个中继节点对应的至少一个服务质量QoS流的信息；其中，所述中继节点用于转发所述第一终端的业务数据；所述QoS流用于传输所述中继节点转发的所述第一终端的业务数据；
    所述用户面网元通过所述至少一个QoS流接收所述第一终端的业务数据；其中，所述第一终端的业务数据包括所述至少一个中继节点转发的所述第一终端的业务数据；
    所述用户面网元将所述第一终端的业务数据聚合后发送给应用服务器。
  7. 根据权利要求1所述的方法，其特征在于，所述至少一个中继节点对应的至少一个QoS流的信息，包括：
    不同的中继节点对应不同的QoS流；或者
    对应同一接入网网元的中继节点对应相同的QoS流，对应不同接入网网元的中继节点对应不同的QoS流。
  8. 根据权利要求6或7所述的方法，其特征在于，所述用户面网元获取所述第一终端的标识信息、所述至少一个中继节点的标识信息、以及所述至少一个QoS流的信息，包括：
    所述用户面网元接收来自会话管理网元的第一信息；其中，所述第一信息包括所述第一终端的标识信息、所述至少一个中继节点的标识信息、以及所述至少一个QoS流的信息。
  9. 根据权利要求6或7所述的方法，其特征在于，所述用户面网元获取所述第一终端的标识信息、所述至少一个中继节点的标识信息、以及所述至少一个QoS流的信息，包括：
    所述用户面网元接收来自会话管理网元的第一信息；其中，所述第一信息包括所述第一终端的标识信息、第一中继节点的标识信息、以及所述第一中继节点对应的QoS流的信息；所述至少一个中继节点包括所述第一中继节点；
    所述用户面网元接收来自会话管理网元的第二信息；其中，所述第二信息包括所述第一终端的标识信息、第二中继节点的标识信息、以及所述第二中继节点对应的QoS流的信息；所述至少一个中继节点包括所述第二中继节点。
  10. 根据权利要求6-9任一项所述的方法，其特征在于，所述用户面网元通过所述至少一个QoS流接收所述第一终端的业务数据，将所述第一终端的业务数据聚合后发送给应用服务器；包括：
    所述用户面网元通过第一QoS流接收第一中继业务数据，以及通过第二QoS流接收第二中继业务数据；其中，所述第一QoS流与第一中继节点对应，所述第二QoS流与第二中继节点对应，所述至少一个中继节点包括所述第一中继节点和所述第二中继节点；
    所述用户面网元根据所述第一终端的至少一个中继节点的标识信息、以及所述中继节点对应的QoS流的信息，确定所述第一中继业务数据与所述第二中继业务数据均为所述第一终端的业务数据；
    所述用户面网元将所述第一中继业务数据和所述第二中继业务数据聚合后发送给应用服务器。
  11. 一种通信方法，其特征在于，包括：
    会话管理网元获取第一终端的标识信息、所述第一终端的至少一个中继节点的标识信息；
    所述会话管理网元向核心网网元发送所述第一终端的标识信息、所述第一终端的至少一个中继节点的标识信息、以及服务质量QoS流的信息；其中，所述中继节点用于转发所述第一终端的业务数据；所述QoS流用于传输所述第一终端的业务数据；所述第一终端的业务数据包括所述至少一个中继节点转发的所述第一终端的业务数据。
  12. 根据权利要求11所述的方法，其特征在于，当所述核心网网元为移动性管理网元时，所述会话管理网元向所述核心网网元发送所述第一终端的标识信息、所述第一终端的至少一个中继节点的标识信息、以及服务质量QoS流的信息；包括：
    所述会话管理网元向所述移动性管理网元发送第一信息；其中，所述第一信息包括所述第一终端的标识信息、所述至少一个中继节点的标识信息、以及所述第一终端对应的QoS流的信息；或者
    所述会话管理网元向所述移动性管理网元发送第一信息和第二信息；其中，所述第一信息包括所述第一终端的标识信息、第一中继节点的标识信息、以及所述第一终端对应的QoS流的信息；所述第二信息包括所述第一终端的标识信息、第二中继节点的标识信息、以及所述第一终端对应的QoS流的信息；所述至少一个中继节点包括所述第一中继节点和所述第二中继节点。
  13. 根据权利要求11所述的方法，其特征在于，当所述核心网网元为用户面网元时，所述会话管理网元向所述核心网网元发送所述第一终端的标识信息、所述第一终端的至少一个中继节点的标识信息、以及服务质量QoS流的信息；包括
    所述会话管理网元向所述用户面网元发送第一信息；其中，所述第一信息包括所述第一终端的标识信息、所述至少一个中继节点的标识信息、以及所述至少一个中继节点对应的至少一个QoS流的信息；或者
    所述会话管理网元向所述用户面网元发送第一信息和第二信息；其中，所述第一信息包括所述第一终端的标识信息、第一中继节点的标识信息、以及所述第一中继节点对应的QoS流的信息；所述第二信息包括所述第一终端的标识信息、第二中继节点的标识信息、以及所述第二中继节点对应的QoS流的信息；所述至少一个中继节点包括所述第一中继节点和所述第二中继节点。
  14. 根据权利要求11-13任一项所述的方法，其特征在于，所述方法还包括：
    所述会话管理网元接收来自移动性管理网元的所述至少一个中继节点的位置信息；
    所述会话管理网元根据所述至少一个中继节点的位置信息确定用户面网元。
  15. 一种通信装置，其特征在于，所述通信装置包括一个或多个处理器、收发器；所述一个或多个处理器、所述收发器支持所述通信装置执行如权利要求1-5任一项所述的通信方法。
  16. 一种通信装置，其特征在于，所述通信装置包括一个或多个处理器、收发器；所述一个或多个处理器、所述收发器支持所述通信装置执行如权利要求6-10任一项所 述的通信方法。
  17. 一种通信装置，其特征在于，所述通信装置包括一个或多个处理器、收发器；所述一个或多个处理器、所述收发器支持所述通信装置执行如权利要求11-14任一项所述的通信方法。
  18. 一种计算机可读存储介质，其特征在于，计算机可读存储介质存储有计算机指令或程序，当计算机指令或程序在计算机上运行时，使得计算机执行如权利要求1-5任一项所述的通信方法方法或者执行如权利要求6-10任一项所述的通信方法方法或者执行如权利要求11-14任一项所述的通信方法。
  19. 一种通信系统，其特征在于，通信系统包括：接入网网元和会话管理网元；
    所述接入网网元，用于获取第一终端的标识信息、所述第一终端的至少一个中继节点的标识信息、以及所述第一终端对应的服务质量QoS流的信息；其中，所述QoS流用于传输所述第一终端的业务数据；所述中继节点用于转发所述第一终端的业务数据；所述接入网网元接收所述第一终端的业务数据；其中，所述第一终端的业务数据包括所述至少一个中继节点转发的所述第一终端的业务数据；所述接入网网元通过所述QoS流将所述第一终端的业务数据发送给用户面网元；
    所述会话管理网元，用于获取所述第一终端的标识信息、所述第一终端的至少一个中继节点的标识信息；所述会话管理网元向所述接入网网元发送所述第一终端的标识信息、所述第一终端的至少一个中继节点的标识信息、所述第一终端对应的QoS流的信息。
  20. 一种通信系统，其特征在于，通信系统包括：用户面网元和会话管理网元；
    所述用户面网元，用于获取第一终端的标识信息、所述第一终端的至少一个中继节点的标识信息、以及所述至少一个中继节点对应的至少一个服务质量QoS流的信息；其中，所述中继节点用于转发所述第一终端的业务数据；所述QoS流用于传输所述中继节点转发的所述第一终端的业务数据；所述用户面网元通过所述至少一个QoS流接收所述第一终端的业务数据；其中，所述第一终端的业务数据包括所述至少一个中继节点转发的所述第一终端的业务数据；所述用户面网元将所述第一终端的业务数据聚合后发送给应用服务器；
    所述会话管理网元，用于获取所述第一终端的标识信息、所述第一终端的至少一个中继节点的标识信息；所述会话管理网元向所述用户面网元发送所述第一终端的标识信息、所述第一终端的至少一个中继节点的标识信息、以及所述至少一个中继节点对应的至少一个QoS流的信息。
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