WO2021219033A1 - 通信方法及装置 - Google Patents

通信方法及装置 Download PDF

Info

Publication number
WO2021219033A1
WO2021219033A1 PCT/CN2021/090693 CN2021090693W WO2021219033A1 WO 2021219033 A1 WO2021219033 A1 WO 2021219033A1 CN 2021090693 W CN2021090693 W CN 2021090693W WO 2021219033 A1 WO2021219033 A1 WO 2021219033A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
unicast connection
qos information
information
unicast
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/090693
Other languages
English (en)
French (fr)
Inventor
彭文杰
史玉龙
王君
李翔宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP21797559.8A priority Critical patent/EP4135400A4/en
Publication of WO2021219033A1 publication Critical patent/WO2021219033A1/zh
Priority to US17/975,868 priority patent/US12471134B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the embodiments of the present application relate to the field of information technology, and in particular, to a communication method and device.
  • a wireless communication system data communication between the terminal and the terminal can be carried out through the network, or the communication between the terminal and the terminal can be directly carried out without using network equipment.
  • a typical application scenario for direct communication between a terminal and a terminal is the Internet of Vehicles.
  • each vehicle is a terminal, and the terminal and the terminal can be directly connected through a sidelink (SL).
  • SL sidelink
  • the new radio (NR) SL supports the transmission of Internet Protocol (IP) data and non-IP (nonIP) data.
  • IP Internet Protocol
  • nonIP non-IP
  • the IP stream will be processed by the vehicle wireless communication technology (V2X) layer first, mapped into a quality of service (QoS) stream, and then reach the UE’s access Layer (access stratum, AS) for transmission.
  • V2X vehicle wireless communication technology
  • QoS quality of service
  • AS access stratum
  • the communication between the terminal and the terminal may need to be relayed.
  • the second terminal sends the data to the first terminal, and the first terminal forwards the data to the third terminal.
  • the first terminal cannot map the corresponding QoS information.
  • the first terminal or the network device corresponding to the first terminal cannot know The QoS information that needs to be guaranteed when the first terminal sends data to the third terminal.
  • the present application provides a communication method and device to solve the problem that the first terminal cannot know the QoS information that needs to be guaranteed when the first terminal sends data to the third terminal.
  • this application provides a communication method that can be applied to the first terminal or the chip of the first terminal.
  • the following description is based on the first terminal as the executive body.
  • the first terminal receives data from the second terminal. And determine the first QoS information according to the at least one QoS information. Subsequently, the first terminal first determines the first bearer configuration according to the first QoS information, and then forwards the data from the second terminal to the third terminal according to the first bearer configuration; or, the first terminal sends to the network device
  • the first QoS information is receiving the first bearer configuration of the network device, and forwarding the data from the second terminal to the third terminal according to the first bearer configuration.
  • the first terminal as a relay terminal can determine the first QoS information of the communication between the first terminal and the third terminal according to at least one quality of service information from the second terminal, so that the first terminal The terminal can obtain the side link configuration corresponding to the first QoS information.
  • At least one QoS information includes first QoS information; or, at least one QoS information includes second QoS information and third QoS information; wherein, the second QoS information is from the second terminal to the third terminal
  • the third QoS information is the QoS information communicated between the second terminal and the first terminal.
  • the first terminal can directly receive the first QoS information indicated by the second terminal, and can also determine the first QoS information according to the second QoS information and the third QoS information indicated by the second terminal, so that the first QoS information can be further improved.
  • the first QoS information communicated between the first terminal and the third terminal can be obtained flexibly.
  • At least one piece of QoS information is QoS information of a QoS flow to which the data belongs, or at least one piece of QoS information is QoS information corresponding to the first bearer.
  • the communication method further includes: sending auxiliary information to the second terminal, the auxiliary information including the channel busy rate CBR measurement result and/or the QoS information that the first terminal can guarantee, and the auxiliary information is used for the first terminal. Determination of QoS information.
  • the first terminal can send auxiliary information to the second terminal to assist the second terminal in determining the first QoS information, so as to assist the second terminal in better determining the applicable first QoS information.
  • the communication method further includes: sending an identifier of the second unicast connection to the network device; the second unicast connection has a corresponding relationship with the first QoS information, and the second unicast connection is the first terminal Unicast connection with the third terminal.
  • the network device can configure a complete bearer configuration for the second terminal.
  • the method further includes: reporting a correspondence between the first unicast connection and the second unicast connection to the network device, and the first unicast connection is a unicast between the second terminal and the first terminal Connection, the second unicast connection is a unicast connection between the first terminal and the third terminal.
  • the network device can learn the relationship between the two unicast connections of the first terminal, so as to ensure that the bearer configuration between the first unicast connection and the second unicast connection matches.
  • the correspondence between the first unicast connection and the second unicast connection includes an identifier of the first unicast connection and an identifier of the second unicast connection.
  • the first terminal can report the two unicast connection identifiers to the network device at the same time, so that the network device can quickly learn the correspondence between the two unicast connections, so that the first unicast connection can be guaranteed
  • the configuration matches the configuration of the second unicast connection.
  • the QoS information includes at least one of the following: rate, priority, packet error rate, and delay.
  • the present application provides a communication method, which can be applied to a second terminal or a chip of the second terminal.
  • the following describes the second terminal as the executive body.
  • the second terminal first determines at least one QoS Information, at least one QoS information is used to determine the first QoS information, the first QoS information is used to determine the first bearer configuration, and the first bearer configuration is required when the first terminal forwards data from the second terminal to the third terminal The bearer configuration. Subsequently, the second terminal sends at least one QoS information to the first terminal.
  • At least one piece of QoS information includes first QoS information; or, at least one piece of QoS information includes second QoS information and third QoS information.
  • the at least one piece of QoS information is QoS information of the QoS flow to which the data flow belongs or QoS information corresponding to the first bearer.
  • determining at least one QoS information includes: reporting the second QoS information to the network device, and receiving the first QoS information sent by the network device; or, determining the first QoS information and the auxiliary information according to the auxiliary information It includes the channel busy rate CBR measurement result and/or the QoS information that the first terminal can guarantee, and the auxiliary information is pre-configured in the second terminal or comes from the first terminal.
  • the QoS information includes at least one of the following: rate, priority, packet error rate, and delay.
  • the third aspect of the application embodiment provides a communication method, which can be applied to the first terminal or the chip of the first terminal.
  • the following describes the first terminal as the executive body.
  • the method includes: the first terminal reports to the network device The correspondence between the first unicast connection and the second unicast connection, the first unicast connection is the unicast connection between the second terminal and the first terminal, and the second unicast connection is the unicast connection between the first terminal and the third terminal Unicast connection.
  • the network device can learn the relationship between the two unicast connections of the first terminal, thereby ensuring the bearer between the first terminal and the second terminal, and between the first terminal and the third terminal Configuration matches.
  • the correspondence between the first unicast connection and the second unicast connection includes an identifier of the first unicast connection and an identifier of the second unicast connection.
  • the first terminal can quickly let the network device know the correspondence between the two unicast connections by simultaneously reporting the two unicast connection identifiers to the network device.
  • the fourth aspect of the application embodiment provides a communication method, which can be applied to the first terminal or the chip of the first terminal.
  • the following describes the first terminal as the execution subject.
  • the method includes: the first terminal determines the second order If the radio link fails RLF on the broadcast connection, the second unicast connection is the unicast connection between the third terminal and the first terminal; the first terminal sends a release request to the second terminal, and the release request is used to request the second terminal to release the first terminal.
  • a unicast request and/or a third unicast connection the first unicast connection is a unicast connection between the first terminal and the second terminal, and the third unicast connection is a unicast connection between the second terminal and the third terminal Broadcast connection.
  • the second terminal when the first terminal detects that the RLF occurs on the second unicast connection, the second terminal can be notified in time to quickly release the first unicast request and/or the first unicast request corresponding to the second unicast connection. Three unicast connections, thereby avoiding data loss.
  • the release request includes indication information, and the indication information is used to indicate that RLF occurs on the first unicast connection.
  • the second terminal can quickly determine the unicast connection where the RLF occurs.
  • the fifth aspect of the application embodiment provides a communication method that can be applied to the second terminal or the chip of the second terminal.
  • the second terminal is used as the execution subject for the description below.
  • the method includes: the second terminal receives the first terminal
  • the release request sent is used to request the second terminal to release the first unicast request and/or the third unicast connection.
  • the first unicast connection is the unicast connection between the first terminal and the second terminal
  • the third unicast connection is the unicast connection between the first terminal and the second terminal.
  • the unicast connection is a unicast connection between the second terminal and the third terminal.
  • the second terminal releases the first unicast request and/or the third unicast connection; where the release request includes indication information, which is used to indicate that the second unicast connection has a radio link failure RLF, and the second unicast connection
  • the unicast connection is a unicast connection between the third terminal and the first terminal.
  • the sixth aspect of the application embodiment provides a communication method, which can be applied to the first terminal or the chip of the first terminal.
  • the following describes the first terminal as the execution subject.
  • the method includes: the first terminal determines the second order If the radio link fails RLF on the broadcast connection, the second unicast connection is a unicast connection between the third terminal and the first terminal; the first terminal sends indication information to the second terminal, and the indication information is used to indicate the second unicast connection RLF occurs.
  • the seventh aspect of the application embodiment provides a communication method that can be applied to the second terminal or the chip of the second terminal.
  • the second terminal is used as the execution subject for the description below.
  • the method includes: the second terminal receives the first terminal The instruction information sent, the instruction information is used to remind the second unicast connection that RLF occurs, and the second unicast connection is the unicast connection between the third terminal and the first terminal; according to the instruction information, the second terminal releases the first unicast Request and/or a third unicast connection, the third unicast connection is a unicast connection between the second terminal and the third terminal, and the first unicast connection is a unicast connection between the second terminal and the first terminal.
  • the present application provides a communication device.
  • the device includes: a receiving module, configured to receive at least one QoS information from a second terminal; a processing module, configured to determine first QoS information according to the at least one QoS information; a processing module, further It is used to determine the first bearer configuration according to the first QoS information, and forward the data from the second terminal to the third terminal according to the first bearer configuration; or, the device further includes a sending module, which is used to send the first QoS information to the network device and receive The module is also used to receive the first bearer configuration of the network device, and the processing module is also used to forward the data from the second terminal to the third terminal according to the first bearer configuration.
  • At least one QoS information includes first QoS information; or, at least one QoS information includes second QoS information and third QoS information; wherein, the second QoS information is from the second terminal to the third terminal
  • the third QoS information is the QoS information communicated between the second terminal and the communication device.
  • At least one piece of QoS information is QoS information of a QoS flow to which the data belongs, or at least one piece of QoS information is QoS information corresponding to the first bearer.
  • the sending module is further configured to send auxiliary information to the second terminal.
  • the auxiliary information includes the channel busy rate CBR measurement result and/or QoS information that the communication device can guarantee.
  • the auxiliary information is used to determine the first terminal. Determination of QoS information.
  • the sending module is further configured to send the identifier of the second unicast connection to the network device; the second unicast connection has a corresponding relationship with the first QoS information, and the second unicast connection is the first terminal Unicast connection with the third terminal.
  • the sending module is further configured to report the corresponding relationship between the first unicast connection and the second unicast connection to the network device, and the first unicast connection is a unicast connection between the second terminal and the communication device.
  • the second unicast connection is a unicast connection between the first terminal and the third terminal.
  • the correspondence between the first unicast connection and the second unicast connection includes an identifier of the first unicast connection and an identifier of the second unicast connection.
  • the QoS information includes at least one of the following: rate, priority, packet error rate, and delay.
  • the present application provides a communication device, the device includes: a processing module for determining at least one QoS information, the at least one QoS information is used for determining the first QoS information, and the first QoS information is used for determining the first bearer configuration ,
  • the first bearer configuration is the bearer configuration required when the first terminal forwards the data from the communication device to the third terminal; the sending module is configured to send at least one QoS information to the first terminal.
  • At least one piece of QoS information includes first QoS information; or, at least one piece of QoS information includes second QoS information and third QoS information.
  • the at least one piece of QoS information is QoS information of the QoS flow to which the data belongs or QoS information corresponding to the first bearer.
  • the sending module is further configured to report the second QoS information to the network device;
  • the apparatus further includes a receiving module configured to receive the first QoS information sent by the network device;
  • the processing module determines the first QoS information according to the auxiliary information, the auxiliary information includes the channel busy rate CBR measurement result and/or the QoS information that the first terminal can guarantee, and the auxiliary information is pre-configured in the communication device or comes from the first terminal.
  • the QoS information includes at least one of the following: rate, priority, packet error rate, and delay.
  • the present application provides a communication device.
  • the device includes a sending module for reporting a correspondence between a first unicast connection and a second unicast connection to a network device.
  • the first unicast connection is the second terminal and the first unicast connection.
  • Unicast connection between terminals, and the second unicast connection is a unicast connection between the first terminal and the third terminal.
  • the correspondence between the first unicast connection and the second unicast connection includes an identifier of the first unicast connection and an identifier of the second unicast connection.
  • this application provides a communication device.
  • the device includes: a processing module, configured to determine that a radio link failure RLF occurs in a second unicast connection, and the second unicast connection is a unicast connection between the third terminal and the first terminal.
  • the sending module is used to send a release request to the second terminal.
  • the release request is used to request the second terminal to release the first unicast request and/or the third unicast connection.
  • the first unicast connection is the first terminal and the first unicast connection.
  • a unicast connection between the two terminals, and the third unicast connection is a unicast connection between the second terminal and the third terminal.
  • the release request includes indication information, and the indication information is used to indicate that RLF occurs on the second unicast connection.
  • the present application provides a communication device.
  • the device includes: a receiving module, configured to receive a release request sent by a first terminal, and the release request is used to request a second terminal to release the first unicast request and/or the third unicast Connection, the first unicast connection is a unicast connection between the first terminal and the second terminal, and the third unicast connection is a unicast connection between the second terminal and the third terminal; the processing module is configured to respond to the release request , Release the first unicast request and/or the third unicast connection; where the release request contains indication information, the indication information is used to indicate that the second unicast connection has a radio link failure RLF, and the second unicast connection is the third unicast connection.
  • a receiving module configured to receive a release request sent by a first terminal, and the release request is used to request a second terminal to release the first unicast request and/or the third unicast Connection, the first unicast connection is a unicast connection between the first terminal and the
  • the present application provides a communication device.
  • the device includes: a processing module configured to determine that a radio link failure RLF occurs in a second unicast connection, and the second unicast connection is a single communication between the third terminal and the first terminal.
  • the sending module is used to send indication information to the second terminal, and the indication information is used to indicate that RLF occurs on the second unicast connection.
  • the present application provides a communication device.
  • the device includes: a receiving module for receiving instruction information sent by a first terminal, where the instruction information is used to prompt the second unicast connection to generate RLF, and the second unicast connection is the third The unicast connection between the terminal and the first terminal; a processing module for releasing the third unicast connection and/or the first unicast connection according to the instruction information, and the third unicast connection is the difference between the second terminal and the third terminal
  • the first unicast connection is a unicast connection between the first terminal and the second terminal.
  • this application provides a communication method applied to a network device, including: receiving second QoS information and third QoS information from a second terminal, and determining the first QoS based on the second QoS information and the third QoS information Information; or, receive the first QoS information from the second terminal, determine the first bearer configuration according to the first QoS information, and send the first bearer configuration to the second terminal; or, receive the identifier corresponding to the second unicast connection Or, receiving the correspondence between the first unicast connection and the second unicast connection from the first terminal; wherein the second QoS information is the QoS information for communication between the second terminal and the third terminal, and the third QoS information is The QoS information for the communication between the second terminal and the first terminal.
  • the first unicast connection is the unicast connection between the second terminal and the first terminal
  • the second unicast connection is the unicast connection between the first terminal and the third terminal.
  • the present application provides a communication device, including: a receiving module for receiving second QoS information and third QoS information from a second terminal; a processing module for receiving second QoS information and third QoS information Determine the first QoS information; or, the receiving module, used to receive the first QoS information from the second terminal; the processing module, used to determine the first bearer configuration according to the first QoS information; the sending module, used to send to the second terminal The first bearer configuration; or, the receiving module, for receiving the identifier corresponding to the second unicast connection; or, the receiving module, for receiving the correspondence between the first unicast connection and the second unicast connection from the first terminal ;
  • the second QoS information is the QoS information of the communication between the second terminal and the third terminal
  • the third QoS information is the QoS information of the communication between the second terminal and the first terminal
  • the first unicast connection is the second terminal A unicast connection with the first terminal, and the second unicast connection
  • the present application provides a device that may include: at least one processor and an interface circuit, and related program instructions are executed in the at least one processor, so that the communication device implements claims 1 to Any one of 13 methods.
  • the terminal device includes: a processor, a memory, a transmitter, and a receiver; the transmitter and the receiver are coupled to the processor, the processor controls the sending action of the transmitter, and the processor controls The receiving action of the receiver;
  • the memory is used to store computer executable program code, and the program code includes information; when the processor executes the information, the information causes the terminal equipment to execute the communications provided in the first, third, fourth, and sixth aspects. method.
  • the terminal device includes: a processor, a memory, a transmitter, and a receiver; the transmitter and the receiver are coupled to the processor, the processor controls the sending action of the transmitter, and the processor controls The receiving action of the receiver;
  • the memory is used to store computer executable program code, and the program code includes information; when the processor executes the information, the information causes the terminal device to execute the communication method provided in the second, fifth, and seventh aspects.
  • the twentieth aspect provides a chip, including: a processor, used to call and run a computer program from the memory, so that the device with the chip can execute the first, third, fourth, and sixth aspects.
  • the communication method provided by the aspect provided by the aspect.
  • This application provides a chip, including: a processor, used to call and run a computer program from a memory, so that the device with the chip installed executes the same as those provided in the second, fifth, and seventh aspects Communication method.
  • This application provides a computer-readable storage medium for storing a computer program.
  • the computer program enables a computer to execute the communication methods provided in the first, third, fourth, and sixth aspects.
  • This application provides a computer-readable storage medium for storing a computer program.
  • the computer program enables a computer to execute the communication methods provided in the second, fifth, and seventh aspects.
  • This application provides a computer program product, including computer program information that enables a computer to execute the communication methods provided in the first, third, fourth, and sixth aspects.
  • This application provides a computer program product, including computer program information that enables a computer to execute the communication methods provided in the second, fifth, and seventh aspects.
  • This application provides a computer program that causes a computer to execute the communication methods provided in the first, third, fourth, and sixth aspects.
  • This application provides a computer program that causes a computer to execute the communication method provided in the second, fifth, and seventh aspects.
  • the first terminal receives at least one quality of service QoS information sent by the second terminal, and determines the first QoS information according to the at least one QoS information. Subsequently, the first terminal determines the first bearer configuration according to the first QoS information, and forwards the data from the second terminal to the third terminal according to the first bearer configuration; or, the first terminal sends the first QoS information to the network device and receives the network The first bearer configuration of the device, and forward the data from the second terminal to the third terminal according to the first bearer configuration.
  • the first terminal as a relay terminal can determine the first QoS information of the communication between the first terminal and the third terminal according to the received at least one piece of service quality information, In turn, the first terminal can obtain the side link configuration corresponding to the first QoS information.
  • FIG. 1 is a schematic diagram of a user plane protocol stack provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of a scenario of a communication method provided by an embodiment of this application.
  • FIG. 3 is a schematic diagram of another user plane protocol stack provided by an embodiment of the application.
  • FIG. 5 is a signaling interaction diagram of another communication method provided by an embodiment of this application.
  • FIG. 6 is a signaling interaction diagram of still another communication method provided by an embodiment of this application.
  • FIG. 7 is a signaling interaction diagram of yet another communication method provided by an embodiment of this application.
  • FIG. 8 is a signaling interaction diagram of another communication method provided by an embodiment of this application.
  • FIG. 9 is a schematic diagram of a corresponding relationship of reporting unicast connections according to an embodiment of the application.
  • Figure 10 is a signaling interaction diagram of another communication method provided by an embodiment of this application.
  • FIG. 11 is a schematic diagram of a wireless link failure scenario provided by an embodiment of the application.
  • FIG. 12 is a signaling interaction diagram of yet another communication method provided by an embodiment of this application.
  • FIG. 13 is a signaling interaction diagram of another communication method provided by an embodiment of this application.
  • FIG. 14 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • 15 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 16 is a schematic structural diagram of still another communication device provided by an embodiment of this application.
  • unicast communication For communication between two terminals, unicast communication can be used. Unicast communication is similar to data communication after a radio resource control (Radio Resource Control, RRC) connection is established between a terminal and a network device. Two terminals are required. First establish a unicast connection between them. After the unicast connection is established, the two terminals can communicate based on the negotiated identification, and the data can be encrypted or unencrypted. Compared with broadcasting, in unicast communication, only two terminals that have established a unicast connection can perform unicast communication.
  • RRC Radio Resource Control
  • FIG 1 is a schematic diagram of a user plane protocol stack provided by an embodiment of the application.
  • the composition of the sidelink radio bearer (SLRB) protocol stack specifically includes the SL service Data adaptation protocol (service data adaptation protocol, SDAP), SL packet data convergence protocol (packet data convergence protocol, PDCP), SL radio link control (radio link control, RLC) and other SL media access control (media access control), MAC), SL port physical layer (physical, PHY).
  • SDAP SL service Data adaptation protocol
  • PDCP packet data convergence protocol
  • RLC radio link control
  • media access control media access control
  • MAC media access control
  • PHY physical layer
  • IP Internet protocol
  • the IP stream sent by the second terminal will first be processed by the V2X layer (a protocol layer) and mapped into a quality of service (QoS) stream, and then It reaches the access layer (Access Stotum, AS) of the third terminal, and transmits in the manner of SLRB.
  • V2X a protocol layer
  • QoS quality of service
  • the specific configuration of the SLRB protocol stack may be determined based on the QoS information of the QoS flow.
  • the QoS information is generated by the V2X layer mapping of the originating UE, and may be a QoS parameter or a QoS profile.
  • the QoS information includes at least one of the following: maximum stream bit rate, guaranteed stream bit rate, packet delay budget, maximum packet loss rate, packet error rate, PC5 interface 5G service quality identifier (PC5 5G QoS Identifier, PC5 5QI), priority Level, communication range, average window (averaging window), maximum data burst volume (maximum data burst volume).
  • the V2X layer can map IP flows to QoS flows and obtain corresponding QoS information.
  • the second terminal will notify the third terminal of the QoS information generated by the mapping.
  • Fig. 2 is a schematic diagram of a communication method provided by an embodiment of the application. As shown in Fig. 2, one or more first terminals 100 on the forwarding side are included, the second terminal 110 on the originating side and the third The terminal 120, wherein the second terminal 110 and the third terminal 120 have a demand for unicast communication.
  • the data sent by the second terminal 110 to the third terminal 120 needs to be forwarded via the first terminal 100
  • the data needs to travel through two sections, one is between the second terminal 110 and the first terminal 100, and the other is the first terminal. 100 and the third terminal 120.
  • the second terminal 110 needs to obtain the bearer configuration of the data sent from the second terminal 110 to the first terminal 100 from the first network device 130
  • the first terminal 100 needs to obtain the first terminal from the second network device 140 100 sends the bearer configuration of data to the third terminal 120.
  • the first terminal 100, the second terminal 110, and the third terminal 120 may also be referred to as user equipment (UE), mobile station (MS), mobile terminal (MT), and so on.
  • the aforementioned terminals can be mobile phones, tablets, computers with wireless transceiver functions, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial control (industrial control) Wireless terminals in ), wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, and wireless terminals in smart homes Terminal and so on.
  • the first network device 130 and the second network device 140 may be, for example, a base station, or various wireless access points, or may refer to devices that communicate with user equipment through one or more sectors on the air interface in the access network .
  • the base station can be used to convert received air frames and IP packets into each other, and act as a router between the wireless terminal and the rest of the access network, where the rest of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate the attribute management of the air interface.
  • the base station can be a base station (BTS) in global system of mobile communication (GSM) or code division multiple access (CDMA), or it can be a broadband code division multiple access (BTS).
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • BTS broadband code division multiple access
  • the base station (NodeB, NB) in wideband code division multiple Access (WCDMA) can also be an evolved base station (evolutional nodeB, eNB or eNodeB) in long term evolution (LTE), or a relay station or access point. Or the base station gNB in the future 5G network, etc., is not limited here.
  • the user plane protocol stack of the layer 2 relay (L2relay) as shown in FIG. 3 can be used.
  • Fig. 3 is a schematic diagram of another user plane protocol stack provided by an embodiment of the application. As shown in Fig. 3, under the L2relay architecture, user data can be relayed and forwarded under the PDCP layer. In addition, in some scenarios, a new layer can be introduced above the RLC layer to implement adaptation or routing functions.
  • the first terminal 100 cannot map the corresponding QoS information. Therefore, when relaying is performed, the first terminal 100 The QoS information that needs to be guaranteed when the first terminal 100 sends data to the third terminal 130 cannot be known.
  • the present application provides a communication method and device, so that the first terminal can learn the first QoS information when the first terminal sends data to the third terminal.
  • the inventive concept of this application is: the second terminal actively provides the first QoS information to the first terminal, so that the first terminal can complete the bearer configuration according to the first QoS information, and send forwarding from the second terminal to the third terminal according to the bearer configuration The data.
  • the above-mentioned second terminal actively provides the first QoS information to the first terminal.
  • the following methods may be included:
  • the first method after determining at least one QoS information, the second terminal sends at least one QoS information to the first terminal, and the first terminal determines the first QoS information according to the at least one QoS information. Subsequently, the first terminal determines the first bearer configuration according to the first QoS information, and the first terminal forwards the data from the second terminal to the third terminal according to the first bearer configuration.
  • the second way after determining the at least one QoS information, the second terminal sends at least one QoS information to the first terminal, and the first terminal determines the first QoS information according to the at least one QoS information.
  • the first terminal sends the first QoS information to the network device, and the network device determines that the first bearer configuration of the network device is determined according to the first QoS information.
  • the first terminal receives the first bearer configuration of the network device, and forwards the data from the second terminal to the third terminal according to the first bearer configuration.
  • the third way after determining the at least one QoS information, the second terminal sends at least one QoS information to the first terminal.
  • the first terminal device directly sends at least one piece of QoS information to the network device, and the network device determines the first QoS information according to the at least one piece of QoS information, and further determines the first bearer configuration of the network device. Subsequently, the first terminal receives the first bearer configuration of the network device, and forwards the data from the second terminal to the third terminal according to the first bearer configuration.
  • Figure 4 is a signaling interaction diagram of a communication method provided by an embodiment of the application. This embodiment relates to the specific process of acquiring the first QoS information in the first method described above when the first terminal forwards the data from the second terminal to the third terminal. As shown in Figure 4, the method includes:
  • the second terminal determines at least one piece of QoS information.
  • the at least one piece of QoS information is used to determine the determination of the first QoS information.
  • the first QoS information is used to determine the determination of the first bearer configuration. The bearer configuration required when the terminal forwards data from the second terminal.
  • the at least one QoS information is the QoS information of the QoS flow to which the data sent by the second terminal to the third terminal belongs, or the at least one QoS information is where the first terminal forwards the data from the second terminal to the third terminal.
  • At least one piece of QoS information may include first QoS information, or at least one piece of QoS information may include second QoS information and third QoS information.
  • the first QoS information is the QoS information of the communication between the first terminal and the third terminal
  • the second QoS information is the QoS information of the communication between the second terminal and the third terminal
  • the third QoS information is the QoS information of the second terminal to the third terminal.
  • the communication between the second terminal and the third terminal may be a process in which data sent from the second terminal is forwarded via the first terminal and finally reaches the third terminal.
  • the second QoS information may be from the second terminal to the third terminal. In the communication between the three terminals, the data transmission needs to meet the QoS.
  • the IP data is generated at the second terminal and the destination is the third terminal. Therefore, the second terminal can be based on the source IP address of the IP data, The destination IP address, source port number, destination port number, and other IP information or service types are mapped to the second QoS information, and the third QoS information is further determined. Alternatively, the second QoS information and the third QoS information may also be directly indicated by the network device.
  • the second terminal may directly use the second QoS information and the third QoS information as at least one QoS information. In other embodiments, the second terminal may further determine according to the second QoS information and the third QoS information. The first QoS information, and the first QoS information is used as the above-mentioned at least one QoS information.
  • the embodiment of the present application does not limit how to determine the first QoS information.
  • the first QoS information may be determined by the second terminal, or may be determined by the network device serving the second terminal.
  • the second terminal may report the second QoS information to the network device.
  • the network device determines the first QoS information according to the second QoS information
  • the first QoS information is sent to the first QoS information.
  • One terminal Specifically, the second terminal reports the second QoS information and the identification information of the corresponding QoS flow.
  • the network device sends the first QoS information and the identification information of the corresponding QoS flow to the second terminal.
  • the foregoing third QoS information may be determined by the network device served by the second terminal. The process of determining the third QoS information and the type of the first QoS information will not be repeated here.
  • the second terminal may determine the first QoS information according to the channel busy ratio (CBR) measurement result and/or auxiliary information .
  • CBR channel busy ratio
  • the above measurement results and/or auxiliary information can be pre-configured, or they can be measured by the first terminal and then sent to the second terminal, or they can be broadcast and sent by the network device, for example, the network device broadcasts the current cell coverage.
  • the terminal device can obtain guaranteed QoS information.
  • the guaranteed QoS information has a corresponding relationship with the CBR measurement result.
  • the second terminal sends at least one piece of QoS information to the first terminal.
  • the embodiment of this application does not limit when the second terminal sends at least one piece of QoS information to the first terminal.
  • the second terminal sends the first terminal a unicast connection. Send at least one QoS message.
  • the second terminal sends at least one QoS information to the first terminal.
  • the first terminal determines first QoS information according to the at least one QoS information.
  • the first terminal may determine the first QoS information according to the at least one QoS information. In some embodiments, if at least one piece of QoS information includes the first QoS information, the first terminal may directly determine the first QoS information. In other embodiments, if the at least one piece of QoS information includes the second QoS information and the third QoS information, the first terminal may determine the first QoS information based on the second QoS information, the third QoS information, and the type of the QoS information.
  • the information such as the rate, priority, and packet error rate in the first QoS information may be directly consistent with the same type of information in the second QoS information and the third QoS information.
  • the delay in the first QoS information may be equal to the difference between the delays in the second QoS information and the third QoS information, or smaller than the difference between the delays in the second QoS information and the third QoS information.
  • the first terminal determines a first bearer configuration according to the first QoS information.
  • the first terminal may determine the first bearer configuration according to the first QoS information.
  • the first bearer configuration is a bearer configuration for the first terminal to forward data (service data or signaling) from the second terminal to the third terminal.
  • the bearer configuration may include the configuration of the SL bearer and the configuration of the SL-related physical layer.
  • the embodiments of this application do not limit how to determine the first bearer configuration based on the first QoS information.
  • the first terminal may be preset with pre-configuration information, and the pre-configuration information includes information about QoS information and bearer configuration. Corresponding relationship, the first terminal may determine the corresponding first bearer configuration in the pre-configuration information based on the first QoS information.
  • the network device broadcasts the correspondence between the QoS information and the bearer configuration, and the first terminal may determine the first bearer corresponding to the first QoS information based on the first QoS information and the correspondence between the QoS information and the bearer configuration. Configuration.
  • S205 The first terminal forwards the data from the second terminal to the third terminal according to the first bearer configuration.
  • Figure 5 is a signaling interaction diagram of another communication method provided by an embodiment of the application. This embodiment relates to the above-mentioned second specific process of acquiring the first QoS information when the first terminal forwards the data from the second terminal to the third terminal. As shown in Figure 5, the method includes:
  • the second terminal determines at least one piece of QoS information.
  • the second terminal sends at least one piece of QoS information to the first terminal.
  • the first terminal determines first QoS information according to the at least one QoS information.
  • S301-S303 can be understood with reference to S201-S203 shown in FIG. 4, and the repeated content will not be repeated here.
  • the first terminal sends the first QoS information to the network device.
  • the network device determines the first bearer configuration according to the first QoS information.
  • the first terminal receives the first bearer configuration of the network device.
  • the first terminal may send the first QoS information to the network device (for example, the first terminal is in the RRC connected state (RRC connected)), and request the first QoS information from the network device.
  • the network device determines the first bearer configuration according to the first QoS information, and sends the first bearer configuration to the first terminal.
  • the embodiment of this application does not limit how the network device determines the first bearer configuration.
  • the network device may determine the first bearer configuration based on the preset correspondence between QoS information and the bearer configuration.
  • the first bearer configuration corresponding to the QoS information may be determined.
  • the network device may determine the first bearer configuration corresponding to the first QoS information according to the measurement result (such as the CBR measurement result) sent by the first terminal and/or the QoS information that the first terminal can guarantee.
  • the first terminal may also send the identifier of the second unicast connection to the network device. Since the second unicast connection has a corresponding relationship with the first QoS information, the network device can determine the unicast connection corresponding to the first QoS information after receiving the identifier corresponding to the unicast connection between the first terminal and the third terminal, So as to better balance the load-bearing configuration.
  • S307 The first terminal forwards the data from the second terminal to the third terminal according to the first bearer configuration.
  • Fig. 6 is a signaling interaction diagram of still another communication method provided by an embodiment of the application. This embodiment relates to the above-mentioned third specific process of acquiring the first QoS information when the first terminal forwards the data from the second terminal to the third terminal. As shown in Figure 6, the method includes:
  • the second terminal determines second QoS information and third QoS information.
  • the second terminal sends the second QoS information and the third QoS information to the first terminal.
  • S401-S402 can be understood with reference to S201-S202 shown in FIG. 4, and the repeated content will not be repeated here.
  • S403 The first terminal sends the second QoS information and the third QoS information to the network device.
  • the network device determines the first QoS information according to the second QoS information and the third QoS information.
  • the network device determines the first bearer configuration according to the first QoS information.
  • S406 The first terminal receives the first bearer configuration of the network device.
  • step S403-step S406 after receiving the second QoS information and the third QoS information, the first terminal may send the second QoS information and the third QoS information to the network device, and the network device can send the second QoS information and the third QoS information to the network device based on the second QoS information and the third QoS information.
  • the third QoS information determines the first QoS information.
  • the network device determines the first bearer configuration according to the first QoS information, and sends the first bearer configuration to the first terminal.
  • step S203 how to determine the first QoS information according to the second QoS information and the third QoS information is similar to step S203 in FIG. 4, and will not be repeated here.
  • How to determine the first bearer configuration according to the first QoS information is similar to step S305 in FIG. 5. I will not repeat them here.
  • the network device may send the first QoS information in addition to the first bearer configuration to the first terminal. Further, after receiving the first QoS information, the first terminal may also send the first QoS information to the third terminal.
  • S407 The first terminal forwards the data from the second terminal to the third terminal according to the first bearer configuration.
  • the first terminal receives at least one quality of service QoS information from the second terminal, and determines the first QoS information according to the at least one QoS information. Subsequently, the first terminal determines the first bearer configuration according to the first QoS information, and forwards the data from the second terminal to the third terminal according to the first bearer configuration; or, the first terminal sends the first QoS information to the network device and receives the network The first bearer configuration of the device, and forward the data from the second terminal to the third terminal according to the first bearer configuration.
  • the first terminal as a relay terminal can determine the first QoS information of the communication between the first terminal and the third terminal according to the received at least one piece of service quality information, In turn, the first terminal can obtain the side link configuration corresponding to the first QoS information.
  • the first terminal may also measure the SL.
  • the foregoing measurement includes at least one of the following: channel busy ratio (CBR) measurement, reference signal receiving power (RSRP) measurement, and channel quality indication (CQI) measurement.
  • CBR channel busy ratio
  • RSRP reference signal receiving power
  • CQI channel quality indication
  • FIG. 7 is a signaling interaction diagram of another communication method provided by an embodiment of the application. As shown in Figure 7, the communication method also includes:
  • the first terminal sends auxiliary information to the second terminal, where the auxiliary information includes a measurement result and/or QoS information that the first terminal can guarantee.
  • the measurement result may be CBR, and the CBR may be used to evaluate the status of the side link between the two terminals.
  • the first terminal may perform CBR measurement on the resource pool where the first terminal sends data to the third terminal, and obtain the CBR measurement result between the first terminal and the third terminal.
  • the second terminal can also actively determine the QoS information that the first terminal can guarantee.
  • the first terminal may send the auxiliary information to the second terminal through the SL RRC message of the unicast connection.
  • Operation 501 is an optional step, that is, the auxiliary information may also be pre-configured in the first terminal.
  • the second terminal determines the first QoS information according to the auxiliary information.
  • the second terminal may allocate the QoS information according to the auxiliary information to determine the first QoS information.
  • the embodiments of this application do not limit how to determine the first QoS information based on the auxiliary information.
  • the second terminal may use the mapping relationship between the CBR measurement result and the QoS information, Determine the corresponding QoS information.
  • the auxiliary information is the QoS information that the first terminal can guarantee
  • the QoS information that the first terminal can guarantee can be used as the limit of the first QoS information.
  • the aforementioned auxiliary information may also be measured in advance and configured in the second terminal in advance.
  • the auxiliary information can be sent to the network device together,
  • the network device uses the auxiliary information to assist in determining the first QoS information.
  • the first terminal sends auxiliary information to the second terminal, and the auxiliary information includes the CBR measurement result and/or the QoS information that the first terminal can guarantee. Subsequently, the second terminal determines the first QoS information according to the auxiliary information. Since the CBR measurement result and/or the QoS information that can be guaranteed by the first terminal is referred to when determining the first QoS information, the determined first QoS information is more accurate.
  • the first terminal acts as an intermediate node to map and transfer the bearer between the second terminal and the third terminal. If the first terminal is in the connected state, the first terminal will report the unicast connection information with the second terminal or the unicast connection information with the third terminal to the network device, and the network device will make two unicast connections respectively Provide corresponding bearer configuration.
  • the network equipment separately provides bearer configurations for the two unicast connections, which may cause mismatch in the bearer configurations of the two unicast connections due to inconsistencies in the number of bearers, which may cause the second terminal to the third terminal to fail to carry the load. Connected, the first terminal as the relay terminal cannot work.
  • FIG. 8 is a signaling interaction diagram of another communication method provided by an embodiment of the application.
  • Figure 8 relates to the specific process of how the first terminal reports the correspondence between two unicast connections to the network device.
  • FIG. 9 is a schematic diagram of a corresponding relationship of reporting unicast connections according to an embodiment of the application.
  • the communication method includes:
  • S601 The first terminal reports the correspondence between the first unicast connection and the second unicast connection to the network device.
  • first unicast connection is a unicast connection between the second terminal and the first terminal
  • second unicast connection is a unicast connection between the first terminal and the third terminal
  • the correspondence between the first unicast connection and the second unicast connection includes an identifier of the first unicast connection and an identifier of the second unicast connection.
  • the first destination identifier (DST) 1 when the first terminal sends data from the third terminal to the second terminal, the first destination identifier (DST) 1 is used.
  • DST1 is the destination identifier of the second terminal device.
  • DST1 may be allocated by the first terminal to the second terminal device.
  • DST2 is the destination identifier of the third terminal device.
  • DST2 may be allocated by the first terminal to the third terminal.
  • DST1 can be used to indicate the first unicast connection
  • DST2 can be used to indicate the second unicast connection. That is, the identifier of the first unicast connection is the destination identifier of the first unicast connection, and the identifier of the second unicast connection is The destination identifier of the second unicast connection.
  • the first terminal can report the correspondence between the first unicast connection and the second unicast connection by simultaneously sending DST1 and DST2 to the network device.
  • the first terminal may also use the source identifier and the destination identifier of the unicast connection as the identifier of the unicast connection.
  • the source identifier is an identifier assigned by the first terminal itself for the unicast connection.
  • the identifier of the first unicast connection is the source identifier and the destination identifier of the first unicast connection
  • the identifier of the second unicast connection is the source identifier and the destination identifier of the second unicast connection.
  • the first terminal in addition to reporting the correspondence between the first unicast connection and the second unicast connection to the network device, may also include the identification of the unicast connection corresponding to the QoS information when reporting the QoS information. Report to the network device. For example, when the first QoS information is reported, the identifier of the second unicast connection may be reported to the network device at the same time, and the second unicast connection and the first QoS information have a corresponding relationship.
  • the first terminal may report the QoS information received from the second terminal and the first unicast connection corresponding to the QoS information to the network device. If the third terminal forwards the data to the second terminal via the first terminal, the first terminal may report the QoS information received from the third terminal and the second unicast connection corresponding to the QoS information to the network device.
  • the network device when the network device receives QoS information, it can learn the unicast connection corresponding to the QoS information, and determine other unicast connections that specifically correspond to the unicast connection, and then can be based on the QoS information When determining the configuration parameters, ensure that the bearer configurations of the unicast connections on both sides of the first terminal match.
  • the network device determines the bearer configuration of the second unicast connection according to the correspondence between the first unicast connection and the second unicast connection.
  • the network device when the first terminal sends data from the second terminal to the third terminal, after receiving the correspondence between the first unicast connection and the second unicast connection, the network device configures the second unicast connection for the first terminal The bearer configuration.
  • the bearer configuration of the second unicast connection it is necessary to ensure that the bearer configuration of the first unicast connection and the second unicast connection match.
  • the network device needs to ensure that the number of bearer configurations of the first unicast connection is consistent with the number of bearer configurations of the second unicast connection.
  • the second terminal also establishes a unicast connection with the third terminal through the first terminal.
  • the first terminal may forward data from the third terminal to the second terminal.
  • the bearer configuration of the first unicast connection is consistent with the operation of the first terminal to send data from the second terminal to the third terminal in the foregoing embodiment, and will not be repeated here.
  • the processing of the data sent in the two directions by the first terminal can be superimposed.
  • the first terminal after the first terminal receives the data from the second terminal, it can transfer the data to the third terminal while sending the data from the third terminal. Receive data.
  • the first terminal sends a message to the network device, reporting the QoS information of the first unicast connection and the QoS information of the second unicast connection may also be superimposed, which will not be repeated here.
  • the first terminal reports the corresponding relationship between the first unicast connection and the second unicast connection to the network device, and the network device determines according to the corresponding relationship between the first unicast connection and the second unicast connection The bearer configuration of the second unicast connection.
  • the first terminal can report the two unicast connection identifiers to the network device at the same time, so that the network device can quickly learn the correspondence between the two unicast connections, thereby ensuring the first unicast connection.
  • the configuration matches the configuration of the second unicast connection.
  • the first unicast connection can correspond to RLC, MAC, and PHY configurations.
  • the third unicast connection can correspond to SDAP and PDCP configurations.
  • the network device cannot determine the third unicast connection corresponding to the first unicast connection, so that only the second terminal provides the bearer configuration corresponding to the first unicast connection , The SDAP and PDCP configurations corresponding to the third unicast connection cannot be provided for the second terminal, resulting in incomplete bearer configuration provided for the second terminal.
  • FIG. 10 is a signaling interaction diagram of another communication method provided by an embodiment of this application. As shown in Figure 10, the communication method includes:
  • S701 The second terminal reports the correspondence between the first unicast connection and the third unicast connection to the network device.
  • the correspondence between the first unicast connection and the third unicast connection includes an identifier of the first unicast connection and an identifier of the third unicast connection.
  • the fourth destination identifier DST4 is used.
  • DST4 is the destination address of the first terminal device.
  • DST4 may be allocated by the first terminal to the third terminal. If the final target terminal of the data sent by the second terminal to the first terminal is the third terminal, in addition to using DST4, a fifth destination identifier DST5 needs to be used.
  • DST5 is the destination address of the third terminal. DST5 may be allocated by the first terminal to the third terminal.
  • DST4 can be used to indicate the first unicast connection
  • DST5 can be used to indicate the third unicast connection.
  • the identifier of the unicast connection is the destination identifier of the third unicast connection. Based on this, the first terminal can report the correspondence between the first unicast connection and the third unicast connection by simultaneously sending DST4 and DST5 to the network device.
  • the second terminal may also use the source identifier and the destination identifier of the unicast connection as the identifier of the unicast connection.
  • the source identifier is the destination identifier of the second terminal itself.
  • the identifier of the first unicast connection is the source identifier and the destination identifier of the first unicast connection
  • the identifier of the third unicast connection is the source identifier and destination identifier of the third unicast connection.
  • the second terminal in addition to reporting the corresponding relationship between the first unicast connection and the third unicast connection to the network device, the second terminal may also correspond to the QoS information when reporting the QoS information.
  • the identification of the unicast connection is reported to the network device together. Furthermore, when the configuration parameters are determined based on the QoS information, it is possible to ensure that the bearer configurations of the unicast connections on both sides of the first terminal match.
  • the network device provides the second terminal with the bearer configuration of the first unicast connection and the bearer configuration of the third unicast connection according to the correspondence between the first unicast connection and the third unicast connection.
  • the network device provides the second terminal with a bearer configuration corresponding to the third unicast connection and a bearer configuration corresponding to the first unicast connection based on the correspondence between the first terminal and the third terminal.
  • the network device associates the bearer configuration corresponding to the third unicast connection with the bearer configuration corresponding to the first unicast connection, and sends them to the second terminal together.
  • the second terminal sends the corresponding relationship between the first unicast connection and the third unicast connection to the network device, so that the network device is the second terminal according to the corresponding relationship between the first unicast connection and the third unicast connection Configure the bearer configuration.
  • the network device can configure a complete bearer configuration for the second terminal.
  • the execution subject of the communication method shown in FIG. 10 can be replaced by the first terminal or the third terminal, that is, the first terminal sends the corresponding relationship between the first unicast connection and the third unicast connection to the network device, so that the network device is The corresponding relationship between a unicast connection and a third unicast connection configures a bearer configuration for the first terminal.
  • the third terminal sends the correspondence between the first unicast connection and the third unicast connection to the network device, so that the network device configures the bearer for the third terminal according to the correspondence between the first unicast connection and the third unicast connection Configuration.
  • FIG. 11 is a schematic diagram of a scenario where a wireless link fails according to an embodiment of the application.
  • the present application provides a communication method as shown in FIG. 12, so that after an RLF occurs on one unicast connection, the unicast connection on the other side and/or the end-to-end unicast connection is released in time.
  • FIG. 12 is a signaling interaction diagram of another communication method provided by an embodiment of this application. As shown in Figure 12, the communication method includes:
  • the first terminal determines that an RLF occurs on the second unicast connection, and the second unicast connection is a unicast connection between the third terminal and the first terminal.
  • the first terminal after RLF occurs on the second unicast connection, the first terminal will promptly identify the second unicast link where the RLF occurs, and release the second unicast connection.
  • the first terminal sends a release request to the second terminal.
  • the release request is used to request the second terminal to release the first unicast connection and/or the third unicast connection.
  • the first unicast connection is the difference between the first terminal and the second terminal.
  • the third unicast connection is a unicast connection between the second terminal and the third terminal.
  • the second terminal releases the first unicast connection and/or the third unicast connection.
  • the foregoing release of the unicast connection may be the release of Access Stratum (AS) configuration, context, or cached data related to the unicast connection.
  • AS Access Stratum
  • the first terminal sends a release request to the second terminal after determining that the RLF occurs on the second unicast connection.
  • the second terminal replies confirmation information to the first terminal, and releases the first unicast connection and/or the third unicast connection.
  • the first terminal may send the release request after the data received from the third terminal before the RLF occurs on the first unicast connection to the second terminal. Or, for the data that the third terminal sends to the first terminal before the RLF occurs on the first unicast connection and needs to be forwarded by the first terminal to the second terminal, if the first terminal has not completed the transmission, the first terminal can transmit The status informs the second terminal.
  • the transmission status is used to indicate at least one of the following: data not successfully sent to the second terminal, data successfully sent to the second terminal, data not sent to the second terminal, data already sent to the second terminal.
  • the third terminal may no longer buffer the data.
  • the first terminal may send the above unsuccessful transmission to the second terminal or the second terminal.
  • the data sent by the terminal is sent back to the third terminal, or the first terminal may send the first information to the third terminal.
  • the first information contains the serial number of the data, which is used to indicate that the data was not successfully sent to the second terminal or was not sent to the third terminal. 2. Data sent by the terminal.
  • the second terminal may release the first unicast connection. If the first unicast connection not only corresponds to the second unicast connection, but also corresponds to other unicast connections, the second terminal may not release the first unicast connection, but only release the third unicast connection.
  • the third terminal determines that the RLF occurs on the second unicast connection, the context of the first unicast connection and the third unicast connection can be released, and then the reselection process of the relay terminal can be triggered.
  • the AS layer of the third terminal sends indication information to the upper layer of the third terminal to trigger the reselection of the relay terminal.
  • the reselection of the relay terminal may be that the third terminal selects a target relay terminal through a discovery process (discovery), and initiates a unicast establishment process for the target relay terminal.
  • the reselection of the relay terminal may also be that the third terminal re-initiates the unicast establishment procedure for the first terminal.
  • the release request includes indication information, and the indication information is used to indicate that RLF occurs on the second unicast connection.
  • the first terminal sends a release request to the second terminal after determining that the RLF occurs on the second unicast connection. Subsequently, according to the release request, the second terminal releases the first unicast request and/or the third unicast connection. In this way, when the first terminal detects that RLF occurs on the second unicast connection, it can notify the second terminal in time to quickly release the first unicast request and/or the third unicast connection corresponding to the second unicast connection. Thereby avoiding data loss and improving system efficiency.
  • FIG. 13 is a signaling interaction diagram of another communication method provided by an embodiment of this application.
  • Figure 13 relates to another way of releasing unicast connections when RLF occurs.
  • the communication method includes:
  • the first terminal determines that a radio link failure RLF occurs in the second unicast connection, and the second unicast connection is a unicast connection between the third terminal and the first terminal.
  • S902 The first terminal sends indication information to the second terminal, where the indication information is used to indicate that RLF occurs on the second unicast connection.
  • the first terminal determines that the second unicast connection has a radio link failure RLF, and sends indication information to the second terminal, and the second terminal determines by itself whether to release the first unicast request and/or the first unicast request.
  • RLF radio link failure
  • the aforementioned program can be stored in a computer readable storage medium, and when the program is executed, it is executed. Including the steps of the foregoing method embodiment; and the foregoing storage medium includes: ROM, RAM, magnetic disk, or optical disk and other media that can store program codes.
  • FIG. 14 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the communication device may be implemented by software, hardware, or a combination of the two, to execute the communication method on the first terminal side.
  • the communication device includes: a receiving module 11, a processing model 12 and a sending module 13.
  • the receiving module 11 is configured to receive at least one QoS information from the second terminal;
  • the processing module 12 is configured to determine first QoS information according to at least one QoS information
  • the processing module 12 is further configured to determine the first bearer configuration according to the first QoS information, and forward data from the second terminal to the third terminal according to the first bearer configuration; or,
  • the device also includes a sending module 13 for sending the first QoS information to the network device, the receiving module 11 for receiving the first bearer configuration of the network device, and the processing module 12 for sending the first QoS information to the network device according to the first bearer configuration.
  • the terminal forwards the data from the second terminal.
  • At least one QoS information includes first QoS information; or, at least one QoS information includes second QoS information and third QoS information; wherein, the second QoS information is from the second terminal to the third terminal
  • the third QoS information is the QoS information communicated between the second terminal and the communication device.
  • the at least one QoS information is QoS information of the QoS flow to which the data belongs, or the at least one QoS information is QoS information corresponding to the first bearer.
  • the sending module 13 is further configured to send auxiliary information to the second terminal.
  • the auxiliary information includes the channel busy rate CBR measurement result and/or the QoS information that the communication device can guarantee, and the auxiliary information is used to determine the second terminal. A determination of QoS information.
  • the sending module 13 is further configured to send the identifier of the second unicast connection to the network device; the second unicast connection has a corresponding relationship with the first QoS information, and the second unicast connection is the first unicast connection.
  • the sending module 13 is further configured to report the corresponding relationship between the first unicast connection and the second unicast connection to the network device, and the first unicast connection is the connection between the second terminal and the communication device.
  • Unicast connection is the connection between the second terminal and the communication device.
  • the correspondence between the first unicast connection and the second unicast connection includes an identifier of the first unicast connection and an identifier of the second unicast connection.
  • the QoS information includes at least one of the following: rate, priority, packet error rate, and delay
  • the communication device provided in the embodiment of the present application can execute the actions of the communication method on the first terminal side in the foregoing method embodiment, and its implementation principles and technical effects are similar, and details are not described herein again.
  • FIG. 15 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • the communication device may be implemented by software, hardware, or a combination of the two, to execute the communication method on the second terminal side described above.
  • the communication device includes: a processing model 21, a sending module 22 and a receiving module 23.
  • the processing module 21 is configured to determine at least one piece of QoS information, the at least one piece of QoS information is used to determine the first QoS information, the first QoS information is used to determine the first bearer configuration, and the first bearer is configured as the first terminal to the third terminal The bearer configuration required when forwarding data from the communication device;
  • the sending module 22 is configured to send at least one QoS information to the first terminal.
  • At least one piece of QoS information includes first QoS information; or, at least one piece of QoS information includes second QoS information and third QoS information.
  • the at least one piece of QoS information is QoS information of the QoS flow to which the data belongs or QoS information corresponding to the first bearer.
  • the sending module 22 is further configured to report the second QoS information to the network device; the device further includes a receiving module 23 configured to receive the first QoS information sent by the network device; or,
  • the processing module 21 determines the first QoS information according to the auxiliary information, the auxiliary information includes the channel busy rate CBR measurement result and/or the QoS information that the first terminal can guarantee, and the auxiliary information is pre-configured in the communication device or from the first terminal .
  • the QoS information includes at least one of the following: rate, priority, packet error rate, and delay.
  • the communication device provided by the embodiment of the present application can execute the actions of the communication method on the second terminal side in the foregoing method embodiment, and its implementation principles and technical effects are similar, and will not be repeated here.
  • An embodiment of the present application also provides a communication device, which may be implemented by software, hardware, or a combination of the two, to execute the above-mentioned communication method on the first terminal side.
  • the communication device includes: a sending module.
  • the sending module is used to report the corresponding relationship between the first unicast connection and the second unicast connection to the network device.
  • the first unicast connection is a unicast connection between the second terminal and the first terminal
  • the second unicast connection is Unicast connection between the first terminal and the third terminal.
  • the correspondence between the first unicast connection and the second unicast connection includes an identifier of the first unicast connection and an identifier of the second unicast connection.
  • the communication device provided in the embodiment of the present application can execute the actions of the communication method on the first terminal side in the foregoing method embodiment, and its implementation principles and technical effects are similar, and details are not described herein again.
  • An embodiment of the present application also provides a communication device, which may be implemented by software, hardware, or a combination of the two, to execute the above-mentioned communication method on the first terminal side.
  • the communication device includes:
  • a processing module configured to determine that a radio link failure RLF occurs in the second unicast connection, and the second unicast connection is a unicast connection between the third terminal and the first terminal;
  • the sending module is used to send a release request to the second terminal.
  • the release request is used to request the second terminal to release the first unicast request and/or the third unicast connection.
  • the first unicast connection is the difference between the first terminal and the second terminal.
  • the third unicast connection is a unicast connection between the second terminal and the third terminal.
  • the release request includes indication information, and the indication information is used to indicate that RLF occurs on the second unicast connection.
  • the communication device provided in the embodiment of the present application can execute the actions of the communication method on the first terminal side in the foregoing method embodiment, and its implementation principles and technical effects are similar, and details are not described herein again.
  • An embodiment of the present application also provides a communication device, which may be implemented by software, hardware, or a combination of the two, to execute the communication method on the second terminal side described above.
  • the communication device includes:
  • the receiving module is configured to receive a release request sent by the first terminal, the release request is used to request the second terminal to release the first unicast request and/or the third unicast connection, and the first unicast connection is the first terminal and the second terminal
  • the third unicast connection is a unicast connection between the second terminal and the third terminal;
  • the processing module is configured to release the first unicast request and/or the third unicast connection according to the release request; wherein the release request includes indication information, and the indication information is used to indicate that the second unicast connection has a radio link failure RLF,
  • the second unicast connection is a unicast connection between the third terminal and the first terminal.
  • the processing module is specifically configured to release the first unicast connection if the first unicast connection only corresponds to the second unicast connection.
  • the communication device provided by the embodiment of the present application can execute the actions of the communication method on the second terminal side in the foregoing method embodiment, and its implementation principles and technical effects are similar, and will not be repeated here.
  • An embodiment of the present application also provides a communication device, which may be implemented by software, hardware, or a combination of the two, to execute the above-mentioned communication method on the first terminal side.
  • the communication device includes:
  • a processing module configured to determine that a radio link failure RLF occurs in the second unicast connection, and the second unicast connection is a unicast connection between the third terminal and the first terminal;
  • the sending module is configured to send indication information to the second terminal, where the indication information is used to indicate that RLF occurs on the second unicast connection.
  • the communication device provided in the embodiment of the present application can execute the actions of the communication method on the first terminal side in the foregoing method embodiment, and its implementation principles and technical effects are similar, and details are not described herein again.
  • An embodiment of the present application also provides a communication device, which may be implemented by software, hardware, or a combination of the two, to execute the communication method on the second terminal side described above.
  • the communication device includes:
  • a receiving module configured to receive indication information sent by the first terminal, the indication information being used to prompt that an RLF occurs on the second unicast connection, and the second unicast connection is a unicast connection between the third terminal and the first terminal;
  • the processing module is configured to release the third unicast connection and/or the first unicast connection according to the instruction information, the third unicast connection is a unicast connection between the second terminal and the third terminal, and the first unicast connection is Unicast connection between the first terminal and the second terminal.
  • the processing module is specifically configured to release the first unicast connection if the first unicast connection only corresponds to the second unicast connection.
  • the communication device provided by the embodiment of the present application can execute the actions of the communication method on the second terminal side in the foregoing method embodiment, and its implementation principles and technical effects are similar, and will not be repeated here.
  • the above receiving module may be a receiver or a communication interface when actually implemented, and the sending module may be a transmitter or a communication interface when actually implemented.
  • the processing module and the positioning management module can be implemented in the form of software calling through processing elements; they can also be implemented in the form of hardware.
  • the processing module may be a separate processing element, or it may be integrated in a chip of the above-mentioned device for implementation.
  • it may also be stored in the memory of the above-mentioned device in the form of program code, and a certain processing element of the above-mentioned device Call and execute the functions of the above processing module.
  • all or part of these modules can be integrated together or implemented independently.
  • the processing element here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.
  • the above modules may be one or more integrated circuits configured to implement the above methods, such as one or more application specific integrated circuits (ASIC), or one or more microprocessors (digital signal processor, DSP), or, one or more field programmable gate arrays (FPGA), etc.
  • ASIC application specific integrated circuit
  • DSP digital signal processor
  • FPGA field programmable gate arrays
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program codes.
  • CPU central processing unit
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • FIG. 16 is a schematic structural diagram of still another communication device provided by an embodiment of this application.
  • the communication device may include: a processor 31 (such as a CPU) and a memory 32; the memory 32 may include a high-speed random-access memory (random-access memory, RAM), or may also include a non-volatile memory (non-volatile memory, NVM), for example, at least one disk memory, and various instructions can be stored in the memory 32 for completing various processing functions and implementing the method steps of the present application.
  • the communication device involved in the present application may further include: a power supply 33, a communication bus 34, and a communication port 35.
  • the communication bus 34 is used to implement communication connections between components.
  • the above-mentioned communication port 35 is used to realize connection and communication between the communication device and other peripherals.
  • the aforementioned memory 32 is used to store computer executable program code, and the program code includes instructions.
  • the instruction causes the communication device to perform the actions of the first terminal in the foregoing method embodiment; or, when the processor 31 executes the instruction, the instruction causes the communications device to execute the actions of the second terminal in the foregoing method embodiment, Its implementation principle and technical effect are similar, so it will not be repeated here.
  • the embodiment of the present application also provides a chip including a processor and an interface.
  • the interface is used to input and output data or instructions processed by the processor.
  • the processor is used to execute the method provided in the above method embodiment.
  • the chip can be used in the first terminal or in the second terminal.
  • the present invention also provides a computer-readable storage medium.
  • the computer-readable storage medium may include: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), and a random access memory (RAM, Random Access Memory). ), magnetic disks or optical disks and other media that can store program codes.
  • the computer-readable storage medium stores program information, and the program information is used for the communication method on the first terminal side or the communication on the second terminal side. method.
  • the embodiment of the present application also provides a program, which is used to execute the communication method on the first terminal side or the communication method on the second terminal side provided in the above method embodiments when the program is executed by the processor.
  • the embodiment of the present application also provides a program product, such as a computer-readable storage medium, in which instructions are stored, which when run on a computer, cause the computer to execute the communication method on the first terminal side provided by the above method embodiment , Or the communication method on the second terminal side.
  • a program product such as a computer-readable storage medium, in which instructions are stored, which when run on a computer, cause the computer to execute the communication method on the first terminal side provided by the above method embodiment , Or the communication method on the second terminal side.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present invention are generated in whole or in part.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • Computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • computer instructions can be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to transmit to another website site, computer, server or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请提供一种通信方法及装置，所述方法包括：接收来自第二终端的至少一个服务质量QoS信息；根据所述至少一个QoS信息确定第一QoS信息；根据所述第一QoS信息确定第一承载配置，根据所述第一承载配置向第三终端转发来自所述第二终端的数据；或者，向网络设备发送所述第一QoS信息，接收所述网络设备的第一承载配置，根据所述第一承载配置向所述第三终端转发来自所述第二终端的数据。相比于现有技术，本申请提供的通信方法中，作为中继终端的第一终端可以根据接收到的至少一个服务质量信息确定第一终端和第三终端之间通信的第一QoS信息，进而使得第一终端可以获取第一QoS信息对应的侧行链路配置。

Description

通信方法及装置
本申请要求于2020年04月30日提交中国专利局、申请号为202010366591.X、申请名称为“通信方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及信息技术领域，尤其涉及一种通信方法及装置。
背景技术
在无线通信系统中，终端与终端之间可以通过网络进行数据通信，也可以不借助网络设备，直接进行终端与终端之间的通信。示例性的，终端与终端之间直接进行通信的一个典型应用场景为车联网，在车联网中，每个车即一个终端，终端与终端之间可以通过侧行链路(sidelink，SL)直接进行数据传输，而不需要经过网络，这样可以有效地减少通信时延。
现有技术中，新空口(new radio，NR)SL支持传输互联网协议(internet protocol，IP)数据和非IP(nonIP)数据。具体的，以IP数据为例，IP流会先经过车用无线通信技术(vehicle to X，V2X)层的处理，映射为服务质量(quality of service，QoS)流流，进而到达UE的接入层(access stratum，AS)进行传输。单播连接中的两个终端，在单播连接建立过程中，需要将各自映射出来的QoS流的QoS信息告知对端。
然而，终端与终端之间的通信可能需要中继转发，此时，第二终端将数据发送给第一终端，再由第一终端将数据转发给第三终端。然而，由于第一终端向第三终端发送的数据不是由第一终端的上层产生的，因此第一终端无法映射出相应的QoS信息，此时第一终端或第一终端对应的网络设备无法获知第一终端向第三终端发送数据时需要保障的QoS信息。
发明内容
有鉴于此，本申请提供一种通信方法及装置，以解决第一终端无法获知第一终端向第三终端发送数据时需要保障的QoS信息的问题。
第一方面本申请提供一种通信方法，该通信方法可以运用于第一终端或第一终端的芯片，下面以第一终端为执行主体进行描述，该方法中，第一终端接收来自第二终端的至少一个服务质量QoS信息，并根据所述至少一个QoS信息确定第一QoS信息。随后，第一终端先根据所述第一QoS信息确定第一承载配置，再根据所述第一承载配置向第三终端转发来自所述第二终端的数据；或者，第一终端向网络设备发送所述第一QoS信息，在接收所述网络设备的第一承载配置，并根据所述第一承载配置向所述第三终端转发来自所述第二终端的数据。
通过第一方面提供的通信方法，作为中继终端的第一终端可以根据来自第二终端的至 少一个服务质量信息确定第一终端和第三终端之间通信的第一QoS信息，进而使得第一终端可以获取第一QoS信息对应的侧行链路配置。
在一种可能的实现方式中，至少一个QoS信息包括第一QoS信息；或者，至少一个QoS信息包括第二QoS信息和第三QoS信息；其中，第二QoS信息为第二终端到第三终端之间通信的QoS信息，第三QoS信息为第二终端到第一终端之间通信的QoS信息。
通过该可能实现的方式，第一终端可以直接接收第二终端指示的第一QoS信息，也可以根据第二终端指示的第二QoS信息和第三QoS信息确定出第一QoS信息，从而可以更加灵活地获知第一终端和第三终端之间通信的第一QoS信息。
在一种可能的实现方式中，至少一个QoS信息为数据所属的QoS流的QoS信息，或者，至少一个QoS信息为第一承载对应的QoS信息。
在一种可能的实现方式中，该通信方法还包括：向第二终端发送辅助信息，辅助信息包括信道繁忙率CBR测量结果和/或第一终端能够保证的QoS信息，辅助信息用于第一QoS信息的确定。
通过该可能实现的方式，第一终端可以向第二终端发送辅助信息来辅助第二终端确定第一QoS信息，从而可以协助第二终端更好的确定出适用的第一QoS信息。
在一种可能的实现方式中，该通信方法还包括：向网络设备发送第二单播连接的标识；第二单播连接与第一QoS信息具有对应关系，第二单播连接为第一终端和第三终端之间的单播连接。
通过该可能实现的方式，根据第二单播连接与第一QoS信息的对应关系，从而使网络设备可以为第二终端配置完整的承载配置。
在一种可能的实现方式中，方法还包括：向网络设备上报第一单播连接和第二单播连接的对应关系，第一单播连接为第二终端和第一终端之间的单播连接，第二单播连接为第一终端和第三终端之间的单播连接。
通过该可能实现的方式，网络设备可以获知第一终端的两个单播连接之间的关系，从而可以确保第一单播连接和第二单播连接之间的承载配置匹配。
在一种可能的实现方式中，第一单播连接和第二单播连接的对应关系包括第一单播连接的标识和第二单播连接的标识。
通过该可能实现的方式，第一终端可以通过同时向网络设备上报两个单播连接标识的方式，快速让网络设备获知两个单播连接之间的对应关系，从而可以保证第一单播连接配置和第二单播连接的配置匹配。
在一种可能的实现方式中，QoS信息包括以下至少一项：速率、优先级、误包率和时延。
第二方面本申请提供一种通信方法，该通信方法可以运用于第二终端或第二终端的芯片，下面以第二终端为执行主体进行描述，该方法中，第二终端首先确定至少一个QoS信息，至少一个QoS信息用于第一QoS信息的确定，第一QoS信息用于第一承载配置的确定，第一承载配置为第一终端向第三终端转发来自第二终端的数据时所需的承载配置。随后，第二终端向第一终端发送至少一个QoS信息。
在一种可能的实现方式中，至少一个QoS信息包括第一QoS信息；或者，至少一个QoS信息包括第二QoS信息和第三QoS信息。
在一种可能的实现方式中，至少一个QoS信息为数据流所属的QoS流的QoS信息或第一承载对应的QoS信息。
在一种可能的实现方式中，确定至少一个QoS信息，包括：向网络设备上报第二QoS信息，接收网络设备发送的第一QoS信息；或者，根据辅助信息，确定第一QoS信息，辅助信息包括信道繁忙率CBR测量结果和/或第一终端能够保证的QoS信息，辅助信息为预先配置在第二终端的或者来自第一终端。
在一种可能的实现方式中，QoS信息包括以下至少一项：速率、优先级、误包率和时延。
第三个方面申请实施例提供一种通信方法，该通信方法可以运用于第一终端或第一终端的芯片，下面以第一终端为执行主体进行描述，方法包括：第一终端向网络设备上报第一单播连接和第二单播连接的对应关系，第一单播连接为第二终端和第一终端之间的单播连接，第二单播连接为第一终端和第三终端之间的单播连接。
通过第三方面提供的通信方法，网络设备可以获知第一终端的两个单播连接之间的关系，从而可以确保第一终端与第二终端，以及第一终端与第三终端之间的承载配置匹配。
在一种可能的实现方式中，第一单播连接和第二单播连接的对应关系包括第一单播连接的标识和第二单播连接的标识。
通过该可能实现的方式，第一终端可以通过同时向网络设备上报两个单播连接标识的方式，快速让网络设备获知两个单播连接之间的对应关系。
第四个方面申请实施例提供一种通信方法，该通信方法可以运用于第一终端或第一终端的芯片，下面以第一终端为执行主体进行描述，方法包括：第一终端确定第二单播连接发生无线链路失败RLF，第二单播连接为第三终端和第一终端之间的单播连接；第一终端向第二终端发送释放请求，释放请求用于请求第二终端释放第一单播请求和/或第三单播连接，第一单播连接为第一终端和第二终端之间的单播连接，第三单播连接为第二终端和第三终端之间的单播连接。
通过第四方面提供的通信方法，在第一终端检测到第二单播连接发生RLF时，可以及时通知第二终端，快速释放与第二单播连接对应的第一单播请求和/或第三单播连接，从而避免数据丢失。
在一种可能的实现方式中，释放请求包含有指示信息，指示信息用于指示第一单播连接发生RLF。
通过该可能实现的方式，通过指示信息，可以快速让第二终端确定发生RLF的单播连接。
第五个方面申请实施例提供一种通信方法，该通信方法可以运用于第二终端或第二终端的芯片，下面以第二终端为执行主体进行描述，方法包括：第二终端接收第一终端发送的释放请求，释放请求用于请求第二终端释放第一单播请求和/或第三单播连接，第一单播连接为第一终端和第二终端之间的单播连接，第三单播连接为第二终端和第三终端之间的单播连接。根据释放请求，第二终端释放第一单播请求和/或第三单播连接；其中，释放请求包含有指示信息，指示信息用于指示第二单播连接发生无线链路失败RLF，第二单播连接为第三终端和第一终端之间的单播连接。
第六个方面申请实施例提供一种通信方法，该通信方法可以运用于第一终端或第一终 端的芯片，下面以第一终端为执行主体进行描述，方法包括：第一终端确定第二单播连接发生无线链路失败RLF，第二单播连接为第三终端和第一终端之间的单播连接；第一终端向第二终端发送指示信息，指示信息用于指示第二单播连接发生RLF。
第七个方面申请实施例提供一种通信方法，该通信方法可以运用于第二终端或第二终端的芯片，下面以第二终端为执行主体进行描述，方法包括：第二终端接收第一终端发送的指示信息，指示信息用于提示第二单播连接发生RLF，第二单播连接为第三终端和第一终端之间的单播连接；根据指示信息，第二终端释放第一单播请求和/或第三单播连接，第三单播连接为第二终端和第三终端之间的单播连接，第一单播连接为第二终端和第一终端之间的单播连接。
第八方面本申请提供一种通信装置，装置包括：接收模块，用于接收来自第二终端的至少一个QoS信息；处理模块，用于根据至少一个QoS信息确定第一QoS信息；处理模块，还用于根据第一QoS信息确定第一承载配置，根据第一承载配置向第三终端转发来自第二终端的数据；或者，装置还包括发送模块，用于向网络设备发送第一QoS信息，接收模块，还用于接收网络设备的第一承载配置，处理模块，还用于根据第一承载配置向第三终端转发来自第二终端的数据。
一种可选的实施方式中，至少一个QoS信息包括第一QoS信息；或者，至少一个QoS信息包括第二QoS信息和第三QoS信息；其中，第二QoS信息为第二终端到第三终端之间通信的QoS信息，第三QoS信息为第二终端到通信装置之间通信的QoS信息。
一种可选的实施方式中，至少一个QoS信息为数据所属的QoS流的QoS信息，或者，至少一个QoS信息为第一承载对应的QoS信息。
一种可选的实施方式中，发送模块，还用于向第二终端发送辅助信息，辅助信息包括信道繁忙率CBR测量结果和/或通信装置能够保证的QoS信息，辅助信息用于确定第一QoS信息的确定。
一种可选的实施方式中，发送模块，还用于向网络设备发送第二单播连接的标识；第二单播连接与第一QoS信息具有对应关系，第二单播连接为第一终端和第三终端之间的单播连接。
一种可选的实施方式中，发送模块，还用于向网络设备上报第一单播连接和第二单播连接的对应关系，第一单播连接为第二终端和通信装置之间的单播连接，第二单播连接为第一终端和第三终端之间的单播连接。
一种可选的实施方式中，第一单播连接和第二单播连接的对应关系包括第一单播连接的标识和第二单播连接的标识。
一种可选的实施方式中，QoS信息包括以下至少一项：速率、优先级、误包率和时延。
第九方面本申请提供一种通信装置，装置包括：处理模块，用于确定至少一个QoS信息，至少一个QoS信息用于第一QoS信息的确定，第一QoS信息用于第一承载配置的确定，第一承载配置为第一终端向第三终端转发来自通信装置的数据时所需的承载配置；发送模块，用于向第一终端发送至少一个QoS信息。
一种可选的实施方式中，至少一个QoS信息包括第一QoS信息；或者，至少一个QoS信息包括第二QoS信息和第三QoS信息。
一种可选的实施方式中，至少一个QoS信息为数据所属的QoS流的QoS信息或第一 承载对应的QoS信息。
一种可选的实施方式中，发送模块，还用于向网络设备上报第二QoS信息；装置，还包括接收模块，用于接收网络设备发送的第一QoS信息；或者，
处理模块，根据辅助信息，确定第一QoS信息，辅助信息包括信道繁忙率CBR测量结果和/或第一终端能够保证的QoS信息，辅助信息为预先配置在通信装置中或者由来自第一终端。
一种可选的实施方式中，QoS信息包括以下至少一项：速率、优先级、误包率和时延。
第十方面本申请提供一种通信装置，装置包括：发送模块，用于向网络设备上报第一单播连接和第二单播连接的对应关系，第一单播连接为第二终端和第一终端之间的单播连接，第二单播连接为第一终端和第三终端之间的单播连接。
在一种可能的实现方式中，第一单播连接和第二单播连接的对应关系包括第一单播连接的标识和第二单播连接的标识。
第十一方面本申请提供一种通信装置，装置包括：处理模块，用于确定第二单播连接发生无线链路失败RLF，第二单播连接为第三终端和第一终端之间的单播连接；发送模块，用于向第二终端发送释放请求，释放请求用于请求第二终端释放第一单播请求和/或第三单播连接，第一单播连接为第一终端和第二终端之间的单播连接，第三单播连接为第二终端和第三终端之间的单播连接。
在一种可能的实现方式中，释放请求包含有指示信息，指示信息用于指示第二单播连接发生RLF。
第十二方面本申请提供一种通信装置，装置包括：接收模块，用于接收第一终端发送的释放请求，释放请求用于请求第二终端释放第一单播请求和/或第三单播连接，第一单播连接为第一终端和第二终端之间的单播连接，第三单播连接为第二终端和第三终端之间的单播连接；处理模块，用于根据释放请求，释放第一单播请求和/或第三单播连接；其中，释放请求包含有指示信息，指示信息用于指示第二单播连接发生无线链路失败RLF，第二单播连接为第三终端和第一终端之间的单播连接。
第十三方面本申请提供一种通信装置，装置包括：处理模块，用于确定第二单播连接发生无线链路失败RLF，第二单播连接为第三终端和第一终端之间的单播连接；发送模块，用于向第二终端发送指示信息，指示信息用于指示第二单播连接发生RLF。
第十四方面本申请提供一种通信装置，装置包括：接收模块，用于接收第一终端发送的指示信息，指示信息用于提示第二单播连接发生RLF，第二单播连接为第三终端和第一终端之间的单播连接；处理模块，用于根据指示信息，释放第三单播连接和/或第一单播连接，第三单播连接为第二终端和第三终端之间的单播连接，所第一单播连接为第一终端和第二终端之间的单播连接。
第十五方面本申请提供一种通信方法，应用于网络设备，包括：接收来自第二终端的第二QoS信息和第三QoS信息，并根据第二QoS信息和第三QoS信息确定第一QoS信息；或者，接收来自第二终端的第一QoS信息，并根据第一QoS信息确定第一承载配置，并向第二终端发送第一承载配置；或者，接收来自第二单播连接对应的标识；或者，接收来自第一终端的第一单播连接和第二单播连接的对应关系；其中，第二QoS信息为第二终端到第三终端之间通信的QoS信息，第三QoS信息为第二终端到第一终端之间通信的QoS 信息，第一单播连接为第二终端和第一终端之间的单播连接，第二单播连接为第一终端和第三终端之间的单播连接。
第十六方面本申请提供一种通信装置，包括：接收模块，用于接收来自第二终端的第二QoS信息和第三QoS信息；处理模块，用于根据第二QoS信息和第三QoS信息确定第一QoS信息；或者，接收模块，用于接收来自第二终端的第一QoS信息；处理模块，用于根据第一QoS信息确定第一承载配置；发送模块，用于向第二终端发送第一承载配置；或者，接收模块，用于接收来自第二单播连接对应的标识；或者，接收模块，用于接收来自第一终端的第一单播连接和第二单播连接的对应关系；其中，第二QoS信息为第二终端到第三终端之间通信的QoS信息，第三QoS信息为第二终端到第一终端之间通信的QoS信息，第一单播连接为第二终端和第一终端之间的单播连接，第二单播连接为第一终端和第三终端之间的单播连接。
第十七方面本申请提供一种一种装置，该装置可以包括：至少一个处理器和接口电路，涉及的程序指令在该至少一个处理器中执行，以使得该通信装置实现如权利要求1至13中任一项的方法。
第十八个方面本申请提供一种终端设备，终端设备包括：处理器、存储器、发送器和接收器；发送器和接收器耦合至处理器，处理器控制发送器的发送动作，处理器控制接收器的接收动作；
其中，存储器用于存储计算机可执行程序代码，程序代码包括信息；当处理器执行信息时，信息使终端设备设备执行如第一方面、第三方面、第四方面和第六方面所提供的通信方法。
第十九个方面本申请提供一种终端设备，终端设备包括：处理器、存储器、发送器和接收器；发送器和接收器耦合至处理器，处理器控制发送器的发送动作，处理器控制接收器的接收动作；
其中，存储器用于存储计算机可执行程序代码，程序代码包括信息；当处理器执行信息时，信息使终端设备执行如第二方面、第五方面和第七方面所提供的通信方法。
第二十个方面本申请提供一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有芯片的设备执行如第一方面、第三方面、第四方面和第六方面所提供的通信方法。
第二十一个方面本申请提供一种芯片，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有芯片的设备执行如第二方面、第五方面和第七方面所提供的通信方法。
第二十二个方面本申请提供一种计算机可读存储介质，用于存储计算机程序，计算机程序使得计算机执行如第一方面、第三方面、第四方面和第六方面所提供的通信方法。
第二十三个方面本申请提供一种计算机可读存储介质，用于存储计算机程序，计算机程序使得计算机执行如第二方面、第五方面和第七方面所提供的通信方法。
第二十四个方面本申请提供一种计算机程序产品，包括计算机程序信息，该计算机程序信息使得计算机执行如第一方面、第三方面、第四方面和第六方面所提供的通信方法。
第二十五个方面本申请提供一种计算机程序产品，包括计算机程序信息，该计算机程序信息使得计算机执行如第二方面、第五方面和第七方面所提供的通信方法。
第二十六个方面本申请提供一种计算机程序，计算机程序使得计算机执行如第一方面、第三方面、第四方面和第六方面所提供的通信方法。
第二十七个方面本申请提供一种计算机程序，计算机程序使得计算机执行如第二方面、第五方面和第七方面所提供的通信方法。
本申请提供的通信方法及装置，第一终端接收第二终端发送的至少一个服务质量QoS信息，并根据至少一个QoS信息确定第一QoS信息。随后，第一终端根据第一QoS信息确定第一承载配置，并根据第一承载配置向第三终端转发来自第二终端的数据；或者，第一终端向网络设备发送第一QoS信息，接收网络设备的第一承载配置，并根据第一承载配置向第三终端转发来自第二终端的数据。相比于现有技术，本申请提供的通信方法中，作为中继终端的第一终端可以根据接收到的至少一个服务质量信息确定第一终端和第三终端之间通信的第一QoS信息，进而使得第一终端可以获取第一QoS信息对应的侧行链路配置。
附图说明
图1为本申请实施例提供的一种用户面协议栈示意图；
图2为本申请实施例提供的一种通信方法的场景示意图；
图3为本申请实施例提供的另一种用户面协议栈示意图；
图4为本申请实施例提供的一种通信方法的信令交互图；
图5为本申请实施例提供的另一种通信方法的信令交互图；
图6为本申请实施例提供的再一种通信方法的信令交互图；
图7为本申请实施例提供的又一种通信方法的信令交互图；
图8为本申请实施例提供的又一种通信方法的信令交互图；
图9为本申请实施例提供的一种上报单播连接的对应关系的示意图；
图10为本申请实施例提供的又一种通信方法的信令交互图
图11为本申请实施例提供的一种无线链路失败的场景示意图；
图12为本申请实施例提供的又一种通信方法的信令交互图；
图13为本申请实施例提供的又一种通信方法的信令交互图；
图14为本申请实施例提供的一种通信装置的结构示意图；
图15为本申请实施例提供的另一种通信装置的结构示意图；
图16为本申请实施例提供的再一种通信装置的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请中的附图，对本申请中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
针对两个终端之间进行通信，可以采用单播通信的方式，单播通信类似于终端与网络设备之间建立无线资源控制(radio resource control，RRC)连接之后进行的数据通信，需要两个终端之间先建立单播连接。在建立单播连接之后，两个终端可以基于协商的标识进 行数据通信，该数据可以是加密的，也可以是不加密的。相比于广播，在单播通信中，只有建立了单播连接的两个终端之间才能进行该单播通信。
图1为本申请实施例提供的一种用户面协议栈示意图，如图1所示，在单播连接中，侧行链路无线承载(sidelink radio bearer，SLRB)协议栈的组成具体包括SL业务数据适配协议(service data adaptation protocol，SDAP)、SL分组数据汇聚层协议(packet data convergence protocol，PDCP)、SL无线链路控制(radio link control，RLC)等SL媒体介入控制(media access control，MAC)、SL端口物理层(physical，PHY)。以网际互连协议(internet protocol，IP)数据为例，第二终端发送的IP流会先经过V2X层(一种协议层)的处理，映射为服务质量(quality of service，QoS)流，进而到达第三终端的接入层(Access Stotum，AS)，以SLRB的方式进行传输。
其中，SLRB协议栈的具体配置可以是基于的QoS流的QoS信息确定的，QoS信息是由发端UE的V2X层映射生成的，可以为QoS参数或者QoS简况(profile)。其中，QoS信息包括以下至少一项：最大流比特速率、保证流比特速率、包延迟预算、最大丢包率、错包率、PC5接口5G服务质量标识(PC5 5G QoS Identifier，PC5 5QI)、优先级、通信范围、平均窗口(averaging window)、最大数据爆发量(maximum data burst volume)。以IP数据为例，V2X层能够将IP流映射为QoS流，并得到相应的QoS信息。在单播连接建立过程中，第二终端会将映射生成的QoS信息告知第三终端。
然而，当两个终端之间进行单播通信时，由于两个终端之间距离较远，或者两个终端之间的链路状况不佳等原因，需要经由中继终端进行单播通信。图2为本申请实施例提供的一种通信方法的场景示意图，如图2所示，包括有转发侧的一个或多个第一终端100，发起侧的第二终端110和目标侧的第三终端120，其中，第二终端110和第三终端120存在单播通信的需求。
当第二终端110向第三终端120发送的数据需要经由第一终端100进行转发时，数据需要经由两段路程，一段是第二终端110和第一终端100之间，另一段是第一终端100和第三终端120之间。为了保证端到端的QoS信息，第二终端110需要从第一网络设备130获取第二终端110向第一终端100发送数据的承载配置，第一终端100需要从第二网络设备140获取第一终端100向第三终端120发送数据的承载配置。
其中，第一终端100、第二终端110和第三终端120，也可以称为用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等。上述终端可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、智慧家庭(smart home)中的无线终端等。
第一网络设备130和第二网络设备140，可例如基站，或者各种无线接入点，或者可以是指接入网中在空中接口上通过一个或多个扇区与用户设备进行通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是全球移动通讯(global system of mobile communication，GSM)或 码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple Access，WCDMA)中的基站(NodeB，NB)，还可以是长期演进(long term evolution，LTE)中的演进型基站(evolutional nodeB，eNB或eNodeB)，或者中继站或接入点，或者未来5G网络中的基站gNB等，在此并不限定。
针对如图2所示的场景中需要经由中继转发的端对端通信，可以依据如图3所示的层2中继(L2relay)的用户面协议栈。图3为本申请实施例提供的另一种用户面协议栈示意图，如图3所示，在L2relay架构下，用户的数据可以在PDCP层之下进行中继转发。此外，在一些场景下，在RLC层之上还可以引入一个新的层，用于实现适配或者路由功能。
然而，由于第一终端100向第三终端120发送的数据不是由第一终端100的产生的，第一终端100无法映射出相应的QoS信息，因此，在进行中继转发时，第一终端100无法获知第一终端100向第三终端130发送数据时需要保障的QoS信息。
为解决上述问题，本申请提供一种通信方法及装置，以使第一终端获知第一终端向第三终端发送数据时的第一QoS信息。本申请的发明构思是：第二终端主动向第一终端提供第一QoS信息，从而使得第一终端可以根据第一QoS信息完成承载配置，并根据承载配置向第三终端发送转发来自第二终端的数据。
上述第二终端主动向第一终端提供第一QoS信息，在L2relay架构下，可以包括如下几种方式：
第一种方式：第二终端确定至少一个QoS信息后，向第一终端发送至少一个QoS信息，第一终端根据至少一个QoS信息确定第一QoS信息。随后，第一终端根据第一QoS信息确定第一承载配置，第一终端根据第一承载配置向第三终端转发来自第二终端的数据。
第二种方式：第二终端确定至少一个QoS信息后，向第一终端发送至少一个QoS信息，第一终端根据至少一个QoS信息确定第一QoS信息。第一终端向网络设备发送第一QoS信息，由网络设备确定根据第一QoS信息确定网络设备的第一承载配置。第一终端接收网络设备的第一承载配置，根据第一承载配置向第三终端转发来自第二终端的数据。
第三种方式：第二终端确定至少一个QoS信息后，向第一终端发送至少一个QoS信息。第一终端设备直接向网络设备发送至少一个QoS信息，由网络设备根据至少一个QoS信息确第一QoS信息，并进一步确定网络设备的第一承载配置。随后，第一终端接收网络设备的第一承载配置，根据第一承载配置向第三终端转发来自第二终端的数据。
下面结合具体地实施例对本申请实施例的技术方案进行详细说明。下面这几个具体的实施例可以相互结合，对于相同或者相似的概念或者过程可能在某些实施例不再赘述。
图4为本申请实施例提供的一种通信方法的信令交互图。本实施例涉及的是第一终端向第三终端转发来自第二终端的数据时，采用上述第一种方式获知第一QoS信息的具体过程。如图4所示，该方法包括：
S201、第二终端确定至少一个QoS信息，至少一个QoS信息用于确定第一QoS信息的确定，第一QoS信息用于确定第一承载配置的确定，第一承载配置为第一终端向第三终端转发来自第二终端的数据时所需的承载配置。
在本申请中，至少一个QoS信息为第二终端向第三终端发送的数据所属的QoS流的QoS信息，或者，至少一个QoS信息为第一终端向第三终端转发来自第二终端的数据所使 用的第一承载对应的QoS信息。
其中，至少一个QoS信息可以包括第一QoS信息，或者，至少一个QoS信息可以包括第二QoS信息和第三QoS信息。其中，第一QoS信息为第一终端到第三终端之间通信的QoS信息，第二QoS信息为第二终端到第三终端之间通信的QoS信息，第三QoS信息为第二终端到第一终端之间通信的QoS信息。
应理解，第二终端到第三终端之间的通信可以为从第二终端发送的数据经由第一终端转发最终达到第三终端的过程，相应的，第二QoS信息可以为第二终端到第三终端之间的通信中，数据传输需要满足的QoS。
以第二终端通过第一终端向第三终端发送IP数据为例，IP数据的产生是在第二终端，目的地为第三终端，因此，第二终端可以基于该IP数据的源IP地址、目的IP地址、源端口号、目的端口号等等IP信息或者业务类型映射出第二QoS信息，并且进一步确定第三QoS信息。或者，第二QoS信息和第三QoS信息也可以由网络设备直接指示。
在一些实施例中，第二终端可以直接将第二QoS信息和第三QoS信息作为至少一个QoS信息，在另一些实施例中，第二终端可以根据第二QoS信息和第三QoS信息进一步确定第一QoS信息，并将第一QoS信息作为上述至少一个QoS信息。
本申请实施例对于如何确定第一QoS信息不做限制，第一QoS信息可以由第二终端确定，也可以由为第二终端服务的网络设备确定。
示例性的，若第二终端为连接态，第二终端可以将第二QoS信息上报给网络设备，由网络设备根据第二QoS信息确定出第一QoS信息后，将第一QoS信息发送给第一终端。具体的，第二终端上报的是第二QoS信息和对应的QoS流的标识信息，网络设备确定第一QoS信息后，将第一QoS信息和对应的QoS流的标识信息发给第二终端。
类似的，上述第三QoS信息可以由第二终端服务的网络设备确定。第三QoS信息的确定过程与第一QoS信息类型，在此不再赘述。
示例性的，若第二终端为空闲态(idle)或者非激活态(inactive)，第二终端可以根据信道繁忙率(channel busy ratio，CBR)测量结果和/或辅助信息，确定第一QoS信息。其中，上述测量结果和/或辅助信息可以预先配置的，或者，也可以由第一终端测量后发送给第二终端，或者，还可以由网络设备广播发送的，例如网络设备广播当前小区覆盖内终端设备能够得到保证的QoS信息，可选的，所述能够得到保证的QoS信息是跟CBR测量结果有对应关系的。
S202、第二终端向第一终端发送至少一个QoS信息。
本申请实施例对于第二终端何时向第一终端发送至少一个QoS信息不做限制，在一些实施例中，在第二终端和第一终端建立单播连接后，第二终端向第一终端发送至少一个QoS信息。在另一些实施例中，在第二终端和第一终端建立单播连接的过程中，第二终端向第一终端发送至少一个QoS信息。
S203、第一终端根据至少一个QoS信息确定第一QoS信息。
在本申请中，第一终端在接收到第二终端发送的至少一个QoS信息后，可以根据至少一个QoS信息确定第一QoS信息。在一些实施例中，若至少一个QoS信息包括有第一QoS信息，则第一终端可以直接确定第一QoS信息。在另一些实施例中，若至少一个QoS信息包括第二QoS信息和第三QoS信息，则第一终端可以基于第二QoS信息、第三QoS信 息以及QoS信息的类型，确定第一QoS信息。
示例性的，第一QoS信息中的速率、优先级、误包率等信息，可以直接与第二QoS信息和第三QoS信息中的相同类型的信息保持一致。第一QoS信息中的时延，可以等于第二QoS信息和第三QoS信息中时延的差值，或者小于第二QoS信息和第三QoS信息中时延的差值。
S204、第一终端根据第一QoS信息确定第一承载配置。
本申请中，在确定第一QoS信息后，若第一终端处于空闲态(idle)或者非激活态(inactive)，可以由第一终端根据第一QoS信息确定第一承载配置。
其中，第一承载配置为第一终端向第三终端转发来自第二终端的数据(业务数据或者信令)的承载配置。承载配置可以包括SL承载的配置和SL相关物理层的配置。
本申请实施例对于如何根据第一QoS信息确定第一承载配置不做限制，在一些实施例中，第一终端可以预先设置有预配置信息，该预配置信息中包含有QoS信息和承载配置的对应关系，第一终端可以基于第一QoS信息在预配置信息中确定对应的第一承载配置。在另一些实施例中，网络设备会广播QoS信息和承载配置的对应关系，第一终端可以基于第一QoS信息和QoS信息和承载配置的对应关系，确定出第一QoS信息对应的第一承载配置。
S205、第一终端根据第一承载配置向第三终端转发来自第二终端的数据。
图5为本申请实施例提供的另一种通信方法的信令交互图。本实施例涉及的是第一终端向第三终端转发来自第二终端的数据时，采用上述第二种获知第一QoS信息的具体过程。如图5所示，该方法包括：
S301、第二终端确定至少一个QoS信息。
S302、第二终端向第一终端发送至少一个QoS信息。
S303、第一终端根据至少一个QoS信息确定第一QoS信息。
S301-S303的技术名词、技术效果、技术特征，以及可选实施方式，可参照图4所示的S201-S203理解，对于重复的内容，在此不再累述。
S304、第一终端向网络设备发送第一QoS信息。
S305、网络设备根据第一QoS信息确定第一承载配置。
S306、第一终端接收网络设备的第一承载配置。
在步骤S304-步骤S305中，第一终端在确定第一QoS信息后，可以将第一QoS信息发送给网络设备(如第一终端处于RRC连接态(RRC connected))，向网络设备请求第一承载配置。网络设备根据第一QoS信息确定第一承载配置，并将第一承载配置发送给第一终端。
其中，本申请实施例对于网络设备如何确定第一承载配置不做限制，在一种可选的实施方式中，网络设备可以基于预先设置的QoS信息与承载配置的对应关系，确定出与第一QoS信息对应的第一承载配置。在另一些实施例中，网络设备可以根据第一终端发送的测量结果(如CBR测量结果)和/或第一终端能够保证的QoS信息，确定出与第一QoS信息对应的第一承载配置。
在一些可选的实施方式中，第一终端还可以向网络设备发送第二单播连接的标识，。由于第二单播连接与第一QoS信息具有对应关系，网络设备在接收到第一终端和第三终端 之间的单播连接对应的标识后，可以确定第一QoS信息所对应单播连接，从而更好的平衡承载配置。
S307、第一终端根据第一承载配置向第三终端转发来自第二终端的数据。
图6为本申请实施例提供的再一种通信方法的信令交互图。本实施例涉及的是第一终端向第三终端转发来自第二终端的数据时，采用上述第三种获知第一QoS信息的具体过程。如图6所示，该方法包括：
S401、第二终端确定第二QoS信息和第三QoS信息。
S402、第二终端向第一终端发送第二QoS信息和第三QoS信息。
S401-S402的技术名词、技术效果、技术特征，以及可选实施方式，可参照图4所示的S201-S202理解，对于重复的内容，在此不再累述。
S403、第一终端向网络设备发送第二QoS信息和第三QoS信息。
S404、网络设备根据第二QoS信息和第三QoS信息确定第一QoS信息。
S405、网络设备根据第一QoS信息确定第一承载配置。
S406、第一终端接收网络设备的第一承载配置。
在步骤S403-步骤S406中，第一终端在接收到第二QoS信息和第三QoS信息后，可以将第二QoS信息和第三QoS信息发送给网络设备，由网络设备基于第二QoS信息和第三QoS信息确定出第一QoS信息。随后，网络设备再根据第一QoS信息确定出第一承载配置，并将第一承载配置发送给第一终端。
其中，如何根据第二QoS信息和第三QoS信息确定出第一QoS信息和图4步骤S203类似，在此不再赘述，如何根据第一QoS信息确定第一承载配置和图5步骤S305类似，在此也不再赘述。
在一些实施例中，网络设备在确定第一QoS信息后，除了向第一终端发送第一承载配置，还可以发送第一QoS信息。进一步的，第一终端在接收到第一QoS信息后，还可以将第一QoS信息发送给第三终端。
S407、第一终端根据第一承载配置向第三终端转发来自第二终端的数据。
下面以具体的实施例对本申请实施例的技术方案进行详细说明。下面这几个具体的实施例可以相互结合，对于相同或相似的概念或过程可能在某些实施例不再赘述。
本申请提供的通信方法，第一终端接收来自第二终端的至少一个服务质量QoS信息，并根据至少一个QoS信息确定第一QoS信息。随后，第一终端根据第一QoS信息确定第一承载配置，并根据第一承载配置向第三终端转发来自第二终端的数据；或者，第一终端向网络设备发送第一QoS信息，接收网络设备的第一承载配置，并根据第一承载配置向第三终端转发来自第二终端的数据。相比于现有技术，本申请提供的通信方法中，作为中继终端的第一终端可以根据接收到的至少一个服务质量信息确定第一终端和第三终端之间通信的第一QoS信息，进而使得第一终端可以获取第一QoS信息对应的侧行链路配置。
为了第二终端更加准确地确定第一QoS信息，第一终端还可以对SL进行测量。示例性的，上述测量包括一下至少一项：信道繁忙率(channel busy ratio，CBR)测量、参考信号接收功率(reference signal receiving power，RSRP)测量、信道质量指示(channel quality indication，CQI)测量。随后，第一终端可以将测量结果以及第一终端能够保证的QoS信息发送给第二终端，来辅助第二终端确定第一QoS信息。
下面以CBR测量为例对如何辅助确定第一QoS信息进行说明。图7为本申请实施例提供的又一种通信方法的信令交互图。如图7所示，通信方法还方法包括：
S501、第一终端向第二终端发送辅助信息，辅助信息包括测量结果和/或第一终端能够保证的QoS信息。
其中，测量结果可以是CBR，该CBR可以用于评估两个终端之间侧行链路状况。在本申请中，第一终端可以对第一终端向第三终端进行数据发送的资源池进行CBR测量，获得第一终端和第三终端之间的CBR测量结果。此外，第二终端还可以主动确定第一终端能够保证的QoS信息。
在一种可选的实施方式中，第一终端可以通过单播连接的SL RRC消息向第二终端发送辅助信息。
操作501是可选的步骤，即该辅助信息也是可以预配置在第一终端中。
S502、第二终端根据辅助信息，确定第一QoS信息。
在本申请中，第二终端在接收到第一终端发送的辅助信息后，可以根据辅助信息，对QoS信息进行分配，确定第一QoS信息。
本申请实施例对于如何根据辅助信息确定第一QoS信息不做限制，在一些实施例中，若辅助信息为CBR测量结果，则第二终端可以根据CBR测量结果与QoS信息之间的映射关系，确定出对应的QoS信息。在另一些实施例中，若辅助信息为第一终端能够保证的QoS信息，则可以第一终端能够保证的QoS信息可以作为第一QoS信息的限值，在确定第一QoS信息时，可以取第一终端能够保证的QoS信息之以内的值。
在一种可选的实施方式中，上述辅助信息还可以提前测量好预先在第二终端中配置。
此外，如图6所示的实施例中，若第一QoS信息由网络设备确定，则相应的，第一终端在向网络设备发送第二QoS信息时，可以将辅助信息一同发送给网络设备，网络设备使用辅助信息辅助确定第一QoS信息。
本申请实施例提供的通信方法，由第一终端向第二终端发送辅助信息，辅助信息包括CBR测量结果和/或第一终端能够保证的QoS信息。随后，第二终端根据辅助信息，确定第一QoS信息。由于在确定第一QoS信息时参考了CBR测量结果和/或第一终端能够保证的QoS信息，从而使确定出的第一QoS信息更加准确。
如图3所示的用户面协议栈所示，第一终端作为中间节点要为第二终端与第三终端之间的承载进行映射、中转。如果第一终端处于连接态，第一终端将与第二终端之间的单播连接信息或与第三终端之间的单播连接信息上报给网络设备，由网络设备分别为两个单播连接提供相应的承载配置。然而，网络设备单独地为两个单播连接分别提供承载配置，可能会由于承载数量不一致等原因，造成两个单播连接的承载配置不匹配，进而造成第二终端到第三终端的承载无法打通，作为中继终端的第一终端无法工作。
为解决上述问题，本申请提供了如图8所示的通信方法，图8为本申请实施例提供的又一种通信方法的信令交互图。图8涉及的是第一终端如何向网络设备上报两个单播连接之间的对应关系的具体过程。图9为本申请实施例提供的一种上报单播连接的对应关系的示意图。如图8所示，该通信方法包括：
S601、第一终端向网络设备上报第一单播连接和第二单播连接的对应关系。
应理解，第一单播连接为第二终端和第一终端之间的单播连接，第二单播连接为第一 终端和第三终端之间的单播连接。
在一些实施例中，第一单播连接和第二单播连接的对应关系包括第一单播连接的标识和第二单播连接的标识。示例性的，如图9所示，第一终端向第二终端发送来自于第三终端的数据时，使用的是第一目的标识(destination，DST)1。可选的，DST1是第二终端设备的目的标识。DST1可以是第一终端为第二终端设备分配的。第一终端向第三终端发送来自于第二终端的数据时，使用的是第二目的标识DST2。可选的，DST2是第三终端设备的目的标识。DST2可以是第一终端为第三终端分配的。因此，可以使用DST1来指示第一单播连接，使用DST2来指示第二单播连接，即，第一单播连接的标识为第一单播连接的目的标识，第二单播连接的标识为第二单播连接的目的标识。基于此，第一终端可以通过将DST1和DST2同时发送给网络设备来上报第一单播连接和第二单播连接的对应关系。
可选的，第一终端也可以将单播连接的源标识和目的标识共同作为单播连接的标识。可选的，源标识是第一终端自己为单播连接分配的标识。此时，第一单播连接的标识为第一单播连接的源标识和目的标识，第二单播连接的标识为第二单播连接的源标识和目的标识。
此外，在一些实施例中，第一终端除了向网络设备上报第一单播连接和第二单播连接的对应关系，还可以在上报QoS信息时，将QoS信息对应的单播连接的标识一起上报给网络设备。例如：可以在上报第一QoS信息时，同时向网络设备上报第二单播连接的标识，第二单播连接和第一QoS信息具有对应关系。
示例性的，若第二终端经由第一终端转发向第三终端发送数据，第一终端可以将从第二终端收到的QoS信息和该QoS信息对应的第一单播连接上报给网络设备。若第三终端经由第一终端转发向第二终端发送数据，第一终端可以将从第三终端收到的QoS信息，和该QoS信息对应的第二单播连接上报给网络设备。
本申请中，通过该方式，网络设备可以在接收到QoS信息时，可以获知该QoS信息对应的单播连接，确定与该单播连接具体对应关系的其他单播连接，进而可以在基于QoS信息确定配置参数时，保证第一终端两侧的单播连接的承载配置匹配。
S602、网络设备根据第一单播连接和第二单播连接的对应关系，确定第二单播连接的承载配置。
本申请中，第一终端向第三终端发送来自第二终端的数据时，网络设备接收到第一单播连接和第二单播连接的对应关系后，为第一终端配置第二单播连接的承载配置。其中，确定第二单播连接的承载配置时需要保证第一单播连接和第二单播连接的承载配置匹配。示例性的，以承载配置的数量为例，网络设备需要保证第一单播连接的承载配置的数量和第二单播连接的承载配置的数量一致。
需要说明的是，同样是第二终端通过第一终端与第三终端建立的单播连接，同时可能会存在第一终端向第二终端转发来自第三终端的数据需求，此时网络设备如何确定第一单播连接的承载配置，与上述实施例中第一终端向第三终端发送来自第二终端的数据的操作一致，在此不再赘述。此外，第一终端对两个方向发送的数据的处理可以叠加进行，示例性的，第一终端接收到第二终端的数据后，在将该数据转发给第三终端的同时可以从第三终端接收数据。第一终端向网络设备发送消息时，上报第一单播连接的QoS信息和第二单播连接的QoS信息也可以叠加进行，在此不再赘述。
本申请实施例提供的通信方法，第一终端向网络设备上报第一单播连接和第二单播连接的对应关系，网络设备根据第一单播连接和第二单播连接的对应关系，确定第二单播连接的承载配置。相比于现有技术，第一终端可以通过同时向网络设备上报两个单播连接标识的方式，快速让网络设备获知两个单播连接之间的对应关系，从而可以保证第一单播连接配置和第二单播连接的配置匹配。
下面与图3所示的用户协议栈结合，对如何为第二终端提供承载配置进行说明。在图3所示的用户协议栈中，第一单播连接可以对应RLC、MAC和PHY配置。第三单播连接可以对应SDAP和PDCP配置。当第二终端向第三终端发送经由第一终端转发的数据时，不但涉及到了第一单播连接，还涉及到了第三单播连接。若第二终端仅向网络设备上报第一单播连接，会导致网络设备无法确定第一单播连接对应的第三单播连接，从而仅为第二终端提供第一单播连接对应的承载配置，无法为第二终端提供第三单播连接对应的SDAP和PDCP配置，导致为第二终端提供的的承载配置不完整。
为解决上述问题，本申请提供了如图10所示的通信方法，通过向网络设备上报第一单播连接和第三单播连接之间的对应关系来确保网络设备为第二终端提供完整的承载配置。图10为本申请实施例提供的又一种通信方法的信令交互图。如图10所示，该通信方法包括：
S701、第二终端向网络设备上报第一单播连接和第三单播连接的对应关系。
在一些实施例中，第一单播连接和第三单播连接的对应关系包括第一单播连接的标识和第三单播连接的标识。示例性的，第二终端向第一终端发送数据时，使用的是第四目的标识DST4。可选的，DST4是第一终端设备的目的地址。DST4可以是第一终端为第三终端分配的。若第二终端向第一终端发送的数据的最终目标终端为第三终端，则除了使用DST4还需要使用第五目的标识DST5。可选的，DST5是第三终端的目的地址。DST5可以是第一终端为第三终端分配的。因此，针对第二终端，可以使用DST4来指示第一单播连接，使用DST5来指示第三单播连接，即，第一单播连接的标识为第一单播连接的目的标识，第三单播连接的标识为第三单播连接的目的标识。基于此，第一终端可以通过将DST4和DST5同时发送给网络设备来上报第一单播连接和第三单播连接的对应关系。
可选的，第二终端也可以将单播连接的源标识和目的标识共同作为单播连接的标识。可选的，源标识是第二终端自己的目的标识。此时，第一单播连接的标识为第一单播连接的源标识和目的标识，第三单播连接的标识为第三单播连接的源标识和目的标识。
与图8实施例类似的，在一些实施例中，第二终端除了向网络设备上报第一单播连接和第三单播连接的对应关系，还可以在上报QoS信息时，将QoS信息对应的单播连接的标识一起上报给网络设备。进而可以在基于QoS信息确定配置参数时，保证第一终端两侧的单播连接的承载配置匹配。
S702、网络设备根据第一单播连接和第三单播连接的对应关系，为第二终端提供第一单播连接的承载配置和第三单播连接的承载配置。
本申请中，网络设备基于第一终端和第三终端的对应关系，为第二终端提供第三单播连接对应的承载配置，以及第一单播连接对应的承载配置。示例性的，网络设备将第三单播连接对应的承载配置和第一单播连接对应的承载配置关联，并一同发送给第二终端。
本申请中，第二终端通过向网络设备发送第一单播连接和第三单播连接的对应关系， 使得网络设备根据第一单播连接和第三单播连接的对应关系，为第二终端配置承载配置。通过该方式，网络设备可以为第二终端配置完整的承载配置。
图10所示的通信方法的执行主体可以替换成第一终端或者第三终端，即第一终端通过向网络设备发送第一单播连接和第三单播连接的对应关系，使得网络设备根据第一单播连接和第三单播连接的对应关系，为第一终端配置承载配置。或者，第三终端通过向网络设备发送第一单播连接和第三单播连接的对应关系，使得网络设备根据第一单播连接和第三单播连接的对应关系，为第三终端配置承载配置。
图11为本申请实施例提供的一种无线链路失败的场景示意图。如图11所示，完成第二终端对第三终端的中继链路后，当第三终端与第一终端之间的第二单播连接发生无线链路失败(radio link failure，RLF)时，若第三终端和第二终端之间的第三单播连接或者第一终端和第二终端之间的第一单播连接不及时进行释放，则可能会造成数据丢失。为解决上述问题，本申请提供了如图12所示的通信方法，从而在一侧单播连接发生RLF后，及时释放另一侧单播连接和/或端对端的单播连接。图12为本申请实施例提供的又一种通信方法的信令交互图。如图12所示，该通信方法包括：
S801、第一终端确定第二单播连接发生RLF，第二单播连接为第三终端和第一终端之间的单播连接。
本实施例中，当第二单播连接发生RLF后，第一终端会及时识别出发生RLF的第二单播链路，并释放第二单播连接。
S802、第一终端向第二终端发送释放请求，释放请求用于请求第二终端释放第一单播连接和/或第三单播连接，第一单播连接为第一终端和第二终端之间的单播连接，第三单播连接为第二终端和第三终端之间的单播连接。
S803、根据释放请求，第二终端释放第一单播连接和/或第三单播连接。
应理解，上述释放单播连接可以为释放与单播连接相关的接入层(Access Stratum，AS)配置、上下文或缓存数据等。
本申请中，第一终端确定第二单播连接发生RLF后，向第二终端发送释放请求。第二终端向第一终端回复确认信息，并释放第一单播连接和/或第三单播连接。
在一些实施例中，第一终端可以将在第一单播连接发生RLF前从第三终端收到的数据向第二终端发送完之后，再发送释放请求。或者，针对第三终端在第一单播连接发生RLF前发给第一终端，需要由第一终端转发给第二终端的数据，若第一终端还未传输完成，则第一终端可以将传输状态告知第二终端。其中，传输状态用于指示以下至少一项内容：未成功发给第二终端的数据，成功发给第二终端的数据，未向第二终端发送的数据，已经向第二终端发送的数据。
在另一些实施例中，由于第三终端向第一终端发送了数据之后，第三终端可能不再缓存数据，此时，第一终端可以将上述未成功发给第二终端或未向第二终端发送的数据发回第三终端，或者，第一终端可以向第三终端发送第一信息，第一信息中包含有数据的序列号，用于指示未成功发给第二终端或未向第二终端发送的数据。
在一些实施例中，若第一单播连接仅与第二单播连接对应时，则第二终端可以释放第一单播连接。若第一单播连接不仅与第二单播连接对应，还与其他单播连接对应时，则第二终端可以不释放第一单播连接，仅释放第三单播连接。
此外，当第三终端判断第二单播连接发生RLF时，可以释放第一单播连接和第三单播连接的上下文，随后可以触发中继终端的重选流程。示例性的，第三终端的AS层给第三终端的上层发送指示信息触发中继终端的重选。示例性的，中继终端的重选可以是第三终端通过发现过程(discovery)选择一个目标中继终端，发起针对这个目标中继终端的单播建立流程。在另一种实施方式中，中继终端的重选还可以是第三终端重新发起针对第一终端的单播建立流程。
在一种可能的实现方式中，释放请求包含有指示信息，指示信息用于指示第二单播连接发生RLF。
本申请实施例提供的通信方法，第一终端确定第二单播连接发生RLF后，向第二终端发送释放请求。随后，根据释放请求，第二终端释放第一单播请求和/或第三单播连接。通过该方式，在第一终端检测到第二单播连接发生RLF时，可以及时通知第二终端，快速释放与第二单播连接对应的第一单播请求和/或第三单播连接，从而避免数据丢失，提高系统效率。
图13为本申请实施例提供的又一种通信方法的信令交互图。图13涉及的是另一种发生RLF时释放单播连接的方式。如图13所示，该通信方法包括：
S901、第一终端确定第二单播连接发生无线链路失败RLF，第二单播连接为第三终端和第一终端之间的单播连接。
S902、第一终端向第二终端发送指示信息，指示信息用于指示第二单播连接发生RLF。
本实施例提供的通信方法，在第一终端确定第二单播连接发生无线链路失败RLF，向第二终端发送指示信息，由第二终端自行判断是否释放第一单播请求和/或第三单播连接。针对本实施与图12中相似的部分，在此不再赘述。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序信息相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
图14为本申请实施例提供的一种通信装置的结构示意图。该通信装置可以通过软件、硬件或者两者的结合实现，以执行上述第一终端侧的通信方法。如图14所示，该通信装置包括：接收模块11、处理模型12和发送模块13。
接收模块11，用于接收来自第二终端的至少一个QoS信息；
处理模块12，用于根据至少一个QoS信息确定第一QoS信息；
处理模块12，还用于根据第一QoS信息确定第一承载配置，根据第一承载配置向第三终端转发来自第二终端的数据；或者，
该装置还包括发送模块13，用于向网络设备发送第一QoS信息，接收模块11，还用于接收网络设备的第一承载配置，处理模块12，还用于根据第一承载配置向第三终端转发来自第二终端的数据。
一种可选的实施方式中，至少一个QoS信息包括第一QoS信息；或者，至少一个QoS信息包括第二QoS信息和第三QoS信息；其中，第二QoS信息为第二终端到第三终端之间通信的QoS信息，第三QoS信息为第二终端到通信装置之间通信的QoS信息。
一种可选的实施方式中，至少一个QoS信息为数据所属的QoS流的QoS信息，或者， 至少一个QoS信息为第一承载对应的QoS信息。
一种可选的实施方式中，发送模块13，还用于向第二终端发送辅助信息，辅助信息包括信道繁忙率CBR测量结果和/或通信装置能够保证的QoS信息，辅助信息用于确定第一QoS信息的确定。
一种可选的实施方式中，发送模块13，还用于向网络设备发送第二单播连接的标识；第二单播连接与第一QoS信息具有对应关系，第二单播连接为第一终端和第三终端之间的单播连接。
一种可选的实施方式中，发送模块13，还用于向网络设备上报第一单播连接和第二单播连接的对应关系，第一单播连接为第二终端和通信装置之间的单播连接。
一种可选的实施方式中，第一单播连接和第二单播连接的对应关系包括第一单播连接的标识和第二单播连接的标识。
一种可选的实施方式中，QoS信息包括以下至少一项：速率、优先级、误包率和时延
本申请实施例提供的通信装置，可以执行上述方法实施例中第一终端侧的通信方法的动作，其实现原理和技术效果类似，在此不再赘述。
图15为本申请实施例提供的另一种通信装置的结构示意图。该通信装置可以通过软件、硬件或者两者的结合实现，以执行上述第二终端侧的通信方法。如图15所示，该通信装置包括：处理模型21、发送模块22和接收模块23。
处理模块21，用于确定至少一个QoS信息，至少一个QoS信息用于第一QoS信息的确定，第一QoS信息用于第一承载配置的确定，第一承载配置为第一终端向第三终端转发来自通信装置的数据时所需的承载配置；
发送模块22，用于向第一终端发送至少一个QoS信息。
一种可选的实施方式中，至少一个QoS信息包括第一QoS信息；或者，至少一个QoS信息包括第二QoS信息和第三QoS信息。
一种可选的实施方式中，至少一个QoS信息为数据所属的QoS流的QoS信息或第一承载对应的QoS信息。
一种可选的实施方式中，发送模块22，还用于向网络设备上报第二QoS信息；该装置，还包括接收模块23，用于接收网络设备发送的第一QoS信息；或者，
处理模块21，根据辅助信息，确定第一QoS信息，辅助信息包括信道繁忙率CBR测量结果和/或第一终端能够保证的QoS信息，辅助信息为预先配置在通信装置中或者由来自第一终端。
一种可选的实施方式中，QoS信息包括以下至少一项：速率、优先级、误包率和时延。
本申请实施例提供的通信装置，可以执行上述方法实施例中第二终端侧的通信方法的动作，其实现原理和技术效果类似，在此不再赘述。
本申请实施例还提供的一种通信装置，该通信装置可以通过软件、硬件或者两者的结合实现，以执行上述第一终端侧的通信方法。该通信装置包括：发送模块。
发送模块，用于向网络设备上报第一单播连接和第二单播连接的对应关系，第一单播连接为第二终端和第一终端之间的单播连接，第二单播连接为第一终端和第三终端之间的单播连接。
在一种可能的实现方式中，第一单播连接和第二单播连接的对应关系包括第一单播连 接的标识和第二单播连接的标识。
本申请实施例提供的通信装置，可以执行上述方法实施例中第一终端侧的通信方法的动作，其实现原理和技术效果类似，在此不再赘述。
本申请实施例还提供的一种通信装置，该通信装置可以通过软件、硬件或者两者的结合实现，以执行上述第一终端侧的通信方法。该通信装置包括：
处理模块，用于确定第二单播连接发生无线链路失败RLF，第二单播连接为第三终端和第一终端之间的单播连接；
发送模块，用于向第二终端发送释放请求，释放请求用于请求第二终端释放第一单播请求和/或第三单播连接，第一单播连接为第一终端和第二终端之间的单播连接，第三单播连接为第二终端和第三终端之间的单播连接。
在一种可能的实现方式中，释放请求包含有指示信息，指示信息用于指示第二单播连接发生RLF。
本申请实施例提供的通信装置，可以执行上述方法实施例中第一终端侧的通信方法的动作，其实现原理和技术效果类似，在此不再赘述。
本申请实施例还提供的一种通信装置，该通信装置可以通过软件、硬件或者两者的结合实现，以执行上述第二终端侧的通信方法。该通信装置包括：
接收模块，用于接收第一终端发送的释放请求，释放请求用于请求第二终端释放第一单播请求和/或第三单播连接，第一单播连接为第一终端和第二终端之间的单播连接，第三单播连接为第二终端和第三终端之间的单播连接；
处理模块，用于根据释放请求，释放第一单播请求和/或第三单播连接；其中，释放请求包含有指示信息，指示信息用于指示第二单播连接发生无线链路失败RLF，第二单播连接为第三终端和第一终端之间的单播连接。
在一种可能的实现方式中，处理模块，具体用于若第一单播连接仅与第二单播连接对应，释放第一单播连接。
本申请实施例提供的通信装置，可以执行上述方法实施例中第二终端侧的通信方法的动作，其实现原理和技术效果类似，在此不再赘述。
本申请实施例还提供的一种通信装置，该通信装置可以通过软件、硬件或者两者的结合实现，以执行上述第一终端侧的通信方法。该通信装置包括：
处理模块，用于确定第二单播连接发生无线链路失败RLF，第二单播连接为第三终端和第一终端之间的单播连接；
发送模块，用于向第二终端发送指示信息，指示信息用于指示第二单播连接发生RLF。
本申请实施例提供的通信装置，可以执行上述方法实施例中第一终端侧的通信方法的动作，其实现原理和技术效果类似，在此不再赘述。
本申请实施例还提供的一种通信装置，该通信装置可以通过软件、硬件或者两者的结合实现，以执行上述第二终端侧的通信方法。该通信装置包括：
接收模块，用于接收第一终端发送的指示信息，指示信息用于提示第二单播连接发生RLF，第二单播连接为第三终端和第一终端之间的单播连接；
处理模块，用于根据指示信息，释放第三单播连接和/或第一单播连接，第三单播连接为第二终端和第三终端之间的单播连接，第一单播连接为第一终端和第二终端之间的单播 连接。
在一种可能的实现方式中，处理模块，具体用于若第一单播连接仅与第二单播连接对应，释放第一单播连接。
本申请实施例提供的通信装置，可以执行上述方法实施例中第二终端侧的通信方法的动作，其实现原理和技术效果类似，在此不再赘述。
需要说明的是，应理解以上接收模块实际实现时可以为接收器或通信接口、发送模块实际实现时可以为发送器或通信接口。而处理模块、定位管理模块可以以软件通过处理元件调用的形式实现；也可以以硬件的形式实现。例如，处理模块可以为单独设立的处理元件，也可以集成在上述装置的某一个芯片中实现，此外，也可以以程序代码的形式存储于上述装置的存储器中，由上述装置的某一个处理元件调用并执行以上处理模块的功能。此外这些模块全部或部分可以集成在一起，也可以独立实现。这里的处理元件可以是一种集成电路，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如，以上这些模块可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个专用集成电路(application specific integrated circuit，ASIC)，或，一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(field programmable gate array，FPGA)等。再如，当以上某个模块通过处理元件调度程序代码的形式实现时，该处理元件可以是通用处理器，例如中央处理器(central processing unit，CPU)或其它可以调用程序代码的处理器。再如，这些模块可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
图16为本申请实施例提供的再一种通信装置的结构示意图。如图16所示，该通信装置可以包括：处理器31(例如CPU)、存储器32；存储器32可能包含高速随机存取存储器(random-access memory，RAM)，也可能还包括非易失性存储器(non-volatile memory，NVM)，例如至少一个磁盘存储器，存储器32中可以存储各种指令，以用于完成各种处理功能以及实现本申请的方法步骤。可选的，本申请涉及的通信装置还可以包括：电源33、通信总线34以及通信端口35。通信总线34用于实现元件之间的通信连接。上述通信端口35用于实现通信装置与其他外设之间进行连接通信。
在本申请实施例中，上述存储器32用于存储计算机可执行程序代码，程序代码包括指令。当处理器31执行指令时，指令使通信装置执行上述方法实施例中第一终端的动作；或者，当处理器31执行指令时，指令使通信装置执行上述方法实施例中第二终端的动作，其实现原理和技术效果类似，在此不再赘述。
本申请实施例还提供了一种芯片，包括处理器和接口。其中接口用于输入输出处理器所处理的数据或指令。处理器用于执行以上方法实施例中提供的方法。该芯片可以应用于第一终端中也可以应用于第二终端中。
本发明还提供了一种计算机可读存储介质，该计算机可读存储介质可以包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁盘或者光盘等各种可以存储程序代码的介质，具体的，该计算机可读存储介质中存储有程序信息，程序信息用于上述第一终端侧的通信方法，或者第二终端侧的通信方法。
本申请实施例还提供一种程序，该程序在被处理器执行时用于执行以上方法实施例提供的第一终端侧的通信方法，或者第二终端侧的通信方法。
本申请实施例还提供一种程序产品，例如计算机可读存储介质，该程序产品中存储有指令，当其在计算机上运行时，使得计算机执行上述方法实施例提供的第一终端侧的通信方法，或者第二终端侧的通信方法。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本发明实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (51)

  1. 一种通信方法，应用于第一终端，其特征在于，所述方法包括：
    接收来自第二终端的至少一个服务质量QoS信息；
    根据所述至少一个QoS信息确定第一QoS信息；
    根据所述第一QoS信息确定第一承载配置，根据所述第一承载配置向第三终端转发来自所述第二终端的数据；或者，
    向网络设备发送所述第一QoS信息，接收所述网络设备的第一承载配置，根据所述第一承载配置向所述第三终端转发来自所述第二终端的数据。
  2. 根据权利要求1所述的方法，其特征在于，所述至少一个QoS信息包括所述第一QoS信息；或者，所述至少一个QoS信息包括第二QoS信息和第三QoS信息；其中，所述第二QoS信息为所述第二终端到所述第三终端之间通信的QoS信息，所述第三QoS信息为所述第二终端到所述第一终端之间通信的QoS信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述至少一个QoS信息为所述数据所属的QoS流的QoS信息，或者，所述至少一个QoS信息为所述第一承载对应的QoS信息。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，所述方法还包括：
    向所述第二终端发送辅助信息，所述辅助信息包括信道繁忙率CBR测量结果和/或所述第一终端能够保证的QoS信息，所述辅助信息用于所述第一QoS信息的确定。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述方法还包括：
    向网络设备发送第二单播连接的标识；所述第二单播连接与所述第一QoS信息具有对应关系，所述第二单播连接为所述第一终端和所述第三终端之间的单播连接。
  6. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    向网络设备上报第一单播连接和第二单播连接的对应关系，所述第一单播连接为所述第二终端和所述第一终端之间的单播连接，所述第二单播连接为所述第一终端和所述第三终端之间的单播连接。
  7. 根据权利要求6所述的方法，其特征在于，所述第一单播连接和所述第二单播连接的对应关系包括第一单播连接的标识和第二单播连接的标识。
  8. 根据权利要求1-7任一项所述的方法，其特征在于，所述QoS信息包括以下至少一项：速率、优先级、误包率和时延。
  9. 一种通信方法，应用于第二终端，其特征在于，所述方法包括：
    确定至少一个QoS信息，所述至少一个QoS信息用于第一QoS信息的确定，所述第一QoS信息用于第一承载配置的确定，所述第一承载配置为第一终端向第三终端转发来自所述第二终端的数据时所需的承载配置；
    向所述第一终端发送所述至少一个QoS信息。
  10. 根据权利要求9所述的方法，其特征在于，所述至少一个QoS信息包括所述第一QoS信息；或者，所述至少一个QoS信息包括第二QoS信息和第三QoS信息。
  11. 根据权利要求9或10所述的方法，其特征在于，所述至少一个QoS信息为所述数据所属的QoS流的QoS信息或所述第一承载对应的QoS信息。
  12. 根据权利要求10所述的方法，其特征在于，所述确定至少一个QoS信息，包括：
    向网络设备上报第二QoS信息和第三QoS信息，接收所述网络设备发送的第一QoS信息；或者，
    根据辅助信息，确定所述第一QoS信息，所述辅助信息包括信道繁忙率CBR测 量结果和/或所述第一终端能够保证的QoS信息，所述辅助信息为预先配置在所述第二终端中或者来自所述第一终端。
  13. 根据权利要求9-12任一项所述的方法，其特征在于，所述QoS信息包括以下至少一项：速率、优先级、误包率和时延。
  14. 一种通信方法，应用于第一终端，其特征在于，所述方法包括：
    向网络设备上报第一单播连接和第二单播连接的对应关系，所述第一单播连接为第二终端和所述第一终端之间的单播连接，所述第二单播连接为所述第一终端和第三终端之间的单播连接。
  15. 根据权利要求14所述的方法，其特征在于，所述第一单播连接和第二单播连接的对应关系包括所述第一单播连接的标识和所述第二单播连接的标识。
  16. 一种通信方法，应用于第一终端，其特征在于，所述方法包括：
    确定第二单播连接发生无线链路失败RLF，所述第二单播连接为第三终端和所述第一终端之间的单播连接；
    向第二终端发送释放请求，所述释放请求用于请求所述第二终端释放第一单播连接和/或第三单播连接，所述第一单播连接为所述第一终端和所述第二终端之间的单播连接，所述第三单播连接为所述第二终端和所述第三终端之间的单播连接。
  17. 根据权利要求16所述的方法，其特征在于，所述释放请求包含有指示信息，所述指示信息用于指示第一单播连接发生RLF。
  18. 一种通信方法，应用于第二终端，其特征在于，所述方法包括：
    接收第一终端发送的释放请求，所述释放请求用于请求所述第二终端释放第一单播请求和/或第三单播连接，所述第一单播连接为所述第一终端和所述第二终端之间的单播连接，第三单播连接为所述第二终端和第三终端之间的单播连接；
    根据所述释放请求释放所述第一单播请求和/或所述第三单播连接。
  19. 根据权利要求18所述的方法，其特征在于，所述释放请求包含有指示信息，所述指示信息用于指示第二单播连接发生无线链路失败RLF，所述第二单播连接为所述第三终端和所述第一终端之间的单播连接。
  20. 一种通信方法，应用于第一终端，其特征在于，所述方法包括：
    确定第二单播连接发生无线链路失败RLF，所述第二单播连接为第三终端和所述第一终端之间的单播连接；
    向第二终端发送指示信息，所述指示信息用于指示第二单播连接发生RLF。
  21. 一种通信方法，应用于第二终端，其特征在于，所述方法包括：
    接收第一终端发送的指示信息，所述指示信息用于提示第二单播连接发生RLF，所述第二单播连接为第三终端和所述第一终端之间的单播连接；
    根据指示信息释放第一单播请求和/或第三单播连接，所述第三单播连接为所述第二终端和所述第三终端之间的单播连接，所述第一单播连接为所述第二终端和所述第一终端之间的单播连接。
  22. 一种通信方法，应用于网络设备，其特征在于，所述方法包括：
    接收来自第二终端的第二QoS信息和第三QoS信息，并根据所述第二QoS信息和第三QoS信息确定第一QoS信息；或者，
    接收来自第二终端的第一QoS信息，并根据所述第一QoS信息确定第一承载配置，并向所述第二终端发送所述第一承载配置；或者，
    接收来自第二单播连接对应的标识；或者，
    接收来自第一终端的第一单播连接和第二单播连接的对应关系；
    其中，所述第二QoS信息为所述第二终端到第三终端之间通信的QoS信息，所述 第三QoS信息为所述第二终端到所述第一终端之间通信的QoS信息，所述第一单播连接为所述第二终端和所述第一终端之间的单播连接，所述第二单播连接为所述第一终端和所述第三终端之间的单播连接。
  23. 一种通信装置，其特征在于，所述装置包括：
    接收模块，用于接收来自第二终端的至少一个QoS信息；
    处理模块，用于根据所述至少一个QoS信息确定第一QoS信息；
    所述处理模块，还用于根据所述第一QoS信息确定第一承载配置，根据所述第一承载配置向第三终端转发来自所述第二终端的数据；或者，
    所述装置还包括发送模块，用于向网络设备发送所述第一QoS信息，所述接收模块，还用于接收所述网络设备的第一承载配置，所述处理模块，还用于根据所述第一承载配置向所述第三终端转发来自所述第二终端的数据。
  24. 根据权利要求23所述的装置，其特征在于，所述至少一个QoS信息包括所述第一QoS信息；或者，所述至少一个QoS信息包括第二QoS信息和第三QoS信息；其中，所述第二QoS信息为所述第二终端到所述第三终端之间通信的QoS信息，所述第三QoS信息为所述第二终端到所述通信装置之间通信的QoS信息。
  25. 根据权利要求23或24所述的装置，其特征在于，所述至少一个QoS信息为所述数据所属的QoS流的QoS信息，或者，所述至少一个QoS信息为所述第一承载对应的QoS信息。
  26. 根据权利要求23-25任一项所述的装置，其特征在于，所述发送模块，还用于向所述第二终端发送辅助信息，所述辅助信息包括信道繁忙率CBR测量结果和/或所述通信装置能够保证的QoS信息，所述辅助信息用于确定所述第一QoS信息的确定。
  27. 根据权利要求23-26任一项所述的装置，其特征在于，所述发送模块，还用于向网络设备发送第二单播连接的标识；所述第二单播连接与所述第一QoS信息具有对应关系，所述第二单播连接为第一终端和所述第三终端之间的单播连接。
  28. 根据权利要求23所述的装置，其特征在于，所述发送模块，还用于向网络设备上报第一单播连接和第二单播连接的对应关系，所述第一单播连接为所述第二终端和所述通信装置之间的单播连接，所述第二单播连接为所述通信装置和所述第三终端之间的单播连接。
  29. 根据权利要求28所述的装置，其特征在于，所述第一单播连接和所述第二单播连接的对应关系包括第一单播连接的标识和第二单播连接的标识。
  30. 根据权利要求23-29任一项所述的装置，其特征在于，所述QoS信息包括以下至少一项：速率、优先级、误包率和时延。
  31. 一种通信装置，其特征在于，所述装置包括：
    处理模块，用于确定至少一个QoS信息，所述至少一个QoS信息用于第一QoS信息的确定，所述第一QoS信息用于第一承载配置的确定，所述第一承载配置为第一终端向第三终端转发来自所述通信装置的数据时所需的承载配置；
    发送模块，用于向所述第一终端发送所述至少一个QoS信息。
  32. 根据权利要求31所述的装置，其特征在于，所述至少一个QoS信息包括所述第一QoS信息；或者，所述至少一个QoS信息包括第二QoS信息和第三QoS信息。
  33. 根据权利要求31或32所述的装置，其特征在于，所述至少一个QoS信息为所述数据所属的QoS流的QoS信息或所述第一承载对应的QoS信息。
  34. 根据权利要求32所述的装置，其特征在于，所述发送模块，还用于向网络设备上报第二QoS信息；所述装置，还包括接收模块，用于接收所述网络设备发送的第一QoS信息；或者，
    所述处理模块，根据辅助信息，确定所述第一QoS信息，所述辅助信息包括信道繁忙率CBR测量结果和/或所述第一终端能够保证的QoS信息，所述辅助信息为预先配置在所述通信装置中或者由来自所述第一终端。
  35. 根据权利要求31-34任一项所述的装置，其特征在于，所述QoS信息包括以下至少一项：速率、优先级、误包率和时延。
  36. 一种通信装置，其特征在于，所述装置包括：
    发送模块，用于向网络设备上报第一单播连接和第二单播连接的对应关系，所述第一单播连接为第二终端和所述通信装置之间的单播连接，所述第二单播连接为所述通信装置和第三终端之间的单播连接。
  37. 根据权利要求36所述的装置，其特征在于，所述第一单播连接和第二单播连接的对应关系包括所述第一单播连接的标识和所述第二单播连接的标识。
  38. 一种通信装置，其特征在于，所述装置包括：
    处理模块，用于确定第二单播连接发生无线链路失败RLF，所述第二单播连接为第三终端和所述通信装置之间的单播连接；
    发送模块，用于向第二终端发送释放请求，所述释放请求用于请求所述第二终端释放第一单播连接和/或第三单播连接，所述第一单播连接为所述通信装置和所述第二终端之间的单播连接，所述第三单播连接为所述第二终端和所述第三终端之间的单播连接。
  39. 根据权利要求38所述的装置，其特征在于，所述释放请求包含有指示信息，所述指示信息用于指示第一单播连接发生RLF。
  40. 一种通信装置，其特征在于，所述装置包括：
    接收模块，用于接收第一终端发送的释放请求，所述释放请求用于请求所述通信装置释放第一单播请求和/或第三单播连接，所述第一单播连接为所述第一终端和所述通信装置之间的单播连接，第三单播连接为所述通信装置和第三终端之间的单播连接；
    处理模块，用于根据所述释放请求释放所述第一单播请求和/或所述第三单播连接。
  41. 根据权利要求40所述的装置，其特征在于，所述释放请求包含有指示信息，所述指示信息用于指示第二单播连接发生无线链路失败RLF，所述第二单播连接为所述第三终端和所述第一终端之间的单播连接。
  42. 一种通信装置，其特征在于，所述装置包括：
    处理模块，用于确定第二单播连接发生无线链路失败RLF，所述第二单播连接为第三终端和所述通信装置之间的单播连接；
    发送模块，用于向第二终端发送指示信息，所述指示信息用于指示第二单播连接发生RLF。
  43. 一种通信装置，其特征在于，所述装置包括：
    接收模块，用于接收第一终端发送的指示信息，所述指示信息用于提示第二单播连接发生RLF，所述第二单播连接为第三终端和所述第一终端之间的单播连接；
    处理模块，用于根据指示信息释放第一单播请求和/或第三单播连接，所述第三单播连接为所述通信装置和所述第三终端之间的单播连接，所述第一单播连接为所述通信装置和所述第一终端之间的单播连接。
  44. 一种通信装置，其特征在于，所述装置包括：
    接收模块，用于接收来自第二终端的第二QoS信息和第三QoS信息；处理模块，用于根据所述第二QoS信息和第三QoS信息确定第一QoS信息；或者，
    接收模块，用于接收来自第二终端的第一QoS信息；处理模块，用于根据所述第一QoS信息确定第一承载配置；发送模块，用于向所述第二终端发送所述第一承载配置；或者，
    接收模块，用于接收来自第二单播连接对应的标识；或者，
    接收模块，用于接收来自第一终端的第一单播连接和第二单播连接的对应关系；
    其中，所述第二QoS信息为所述第二终端到第三终端之间通信的QoS信息，所述第三QoS信息为所述第二终端到所述第一终端之间通信的QoS信息，所述第一单播连接为所述第二终端和所述第一终端之间的单播连接，所述第二单播连接为所述第一终端和所述第三终端之间的单播连接。
  45. 一种终端设备，其特征在于，包括：存储器与处理器；
    所述存储器，用于存储所述处理器的可执行指令；
    所述处理器配置为经由执行所述可执行指令来执行权利要求1-21任一所述的方法。
  46. 一种网络设备，其特征在于，包括：存储器与处理器；
    所述存储器，用于存储所述处理器的可执行指令；
    所述处理器配置为经由执行所述可执行指令来执行权利要求22所述的方法。
  47. 一种装置，其特征在于，所述装置可以包括：至少一个处理器和接口电路，涉及的程序指令在该至少一个处理器中执行，以使得该通信装置实现如权利要求1至22中任一项所述的方法。
  48. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1至22中任一项所述的方法。
  49. 一种计算机程序产品，其特征在于，所述计算机程序产品包含涉及的程序指令，所述涉及的程序指令被执行时，以实现根据权利要求1-22中任一所述方法中所述终端设备或所述网络设备的功能。
  50. 一种通信系统，其特征在于，包括如权利要求23-30、36-39、42任一项所述的通信装置，如权利要求31-35、40-41、43任一项所述的通信装置，如权利要求44所述的通信装置。
  51. 一种通信装置，其特征在于，所述装置用于执行权利要求1-22中任一项所述的方法。
PCT/CN2021/090693 2020-04-30 2021-04-28 通信方法及装置 Ceased WO2021219033A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21797559.8A EP4135400A4 (en) 2020-04-30 2021-04-28 COMMUNICATION METHOD AND DEVICE
US17/975,868 US12471134B2 (en) 2020-04-30 2022-10-28 Communication method and apparatus for improving transmission of QOS information in communication between terminals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010366591.X 2020-04-30
CN202010366591.XA CN113596928A (zh) 2020-04-30 2020-04-30 通信方法及装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/975,868 Continuation US12471134B2 (en) 2020-04-30 2022-10-28 Communication method and apparatus for improving transmission of QOS information in communication between terminals

Publications (1)

Publication Number Publication Date
WO2021219033A1 true WO2021219033A1 (zh) 2021-11-04

Family

ID=78237515

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/090693 Ceased WO2021219033A1 (zh) 2020-04-30 2021-04-28 通信方法及装置

Country Status (4)

Country Link
US (1) US12471134B2 (zh)
EP (1) EP4135400A4 (zh)
CN (1) CN113596928A (zh)
WO (1) WO2021219033A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113972967B (zh) * 2020-07-24 2023-05-23 维沃移动通信有限公司 辅助信息发送方法、接收方法、装置、终端及网络侧设备
CN118575577A (zh) * 2022-12-29 2024-08-30 北京小米移动软件有限公司 一种辅助信息的交互方法及其装置
CN120226442A (zh) * 2023-08-10 2025-06-27 北京小米移动软件有限公司 通信方法、终端、通信系统及存储介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108809897A (zh) * 2017-04-28 2018-11-13 中兴通讯股份有限公司 一种中继发现及中继转发方法、设备和存储介质
CN110536262A (zh) * 2019-04-30 2019-12-03 中兴通讯股份有限公司 一种直通链路通信方法、装置和存储介质
CN110831075A (zh) * 2018-08-10 2020-02-21 中兴通讯股份有限公司 数据传输方法及装置，业务切换方法及装置
CN110838899A (zh) * 2018-08-16 2020-02-25 电信科学技术研究院有限公司 一种直接通信链路资源分配方法及终端
CN110944306A (zh) * 2018-09-25 2020-03-31 维沃移动通信有限公司 一种旁链路的链路释放方法及终端
WO2020068991A1 (en) * 2018-09-25 2020-04-02 Idac Holdings, Inc. L2 procedures for unicast and/or multicast link establishment and maintenance

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3454600B1 (en) * 2016-06-03 2021-07-14 Huawei Technologies Co., Ltd. V2x message communication method and device
KR102858140B1 (ko) * 2019-01-30 2025-09-10 삼성전자주식회사 무선 통신 시스템에서 직접 통신 베어러의 서비스 품질을 관리 및 설정하는 장치 및 방법
CN117544919A (zh) * 2019-08-07 2024-02-09 华为技术有限公司 通信方法、建立slrb的方法和通信装置
CN110602801B (zh) * 2019-08-09 2022-04-05 北京紫光展锐通信技术有限公司 链路配置方法及装置
CN114830818B (zh) * 2019-12-30 2024-09-10 华为技术有限公司 管理QoS的方法、中继终端、PCF网元、SMF网元及远程终端
KR102940386B1 (ko) * 2020-02-21 2026-03-17 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 QoS 제어 방법, 장치 및 판독 가능한 저장 매체
CN113453196B (zh) * 2020-03-27 2023-05-23 维沃移动通信有限公司 信息传输方法和终端设备
WO2021212383A1 (zh) * 2020-04-22 2021-10-28 Oppo广东移动通信有限公司 QoS控制方法、装置及可读存储介质

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108809897A (zh) * 2017-04-28 2018-11-13 中兴通讯股份有限公司 一种中继发现及中继转发方法、设备和存储介质
CN110831075A (zh) * 2018-08-10 2020-02-21 中兴通讯股份有限公司 数据传输方法及装置，业务切换方法及装置
CN110838899A (zh) * 2018-08-16 2020-02-25 电信科学技术研究院有限公司 一种直接通信链路资源分配方法及终端
CN110944306A (zh) * 2018-09-25 2020-03-31 维沃移动通信有限公司 一种旁链路的链路释放方法及终端
WO2020068991A1 (en) * 2018-09-25 2020-04-02 Idac Holdings, Inc. L2 procedures for unicast and/or multicast link establishment and maintenance
CN110536262A (zh) * 2019-04-30 2019-12-03 中兴通讯股份有限公司 一种直通链路通信方法、装置和存储介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4135400A4

Also Published As

Publication number Publication date
CN113596928A (zh) 2021-11-02
EP4135400A1 (en) 2023-02-15
US12471134B2 (en) 2025-11-11
US20230052503A1 (en) 2023-02-16
EP4135400A4 (en) 2023-10-11

Similar Documents

Publication Publication Date Title
US20220174575A1 (en) Data transmission method, terminal device, and network device
US11234188B2 (en) Methods of multi-hop relay node access, and apparatus therefor
WO2020103842A1 (zh) 一种通信方法及装置
US12471134B2 (en) Communication method and apparatus for improving transmission of QOS information in communication between terminals
EP3032871A1 (en) Data transmission method, device and system
WO2019185062A1 (zh) 一种通信方法及装置
US12425942B2 (en) Communication method and apparatus for sending a handover request
WO2019214729A1 (zh) 数据处理的方法和设备
EP3637846A1 (en) Method and device for use in configuring novel quality of service architecture in dual connectivity system
US20230067900A1 (en) Communication method and apparatus, and storage medium
JP6920550B2 (ja) 通信方法および装置ならびに無線アクセス・ネットワーク
US20230171823A1 (en) Information transmission method, network device and terminal
WO2020098747A1 (zh) 传输路径的配置方法及装置
US20200374962A1 (en) Communication method, first terminal device, and second terminal device
WO2023143270A1 (zh) 一种通信方法及装置
US20250184860A1 (en) Communication method and communication apparatus
WO2021026706A1 (zh) 一种f1接口管理方法及装置
US20220264355A1 (en) Communication Method, Apparatus, and System
US11973589B2 (en) Mode switching method, data flow splitting method, and apparatus
CN115696408A (zh) 一种用户面功能容灾方法及通信装置
WO2022021142A1 (zh) QoS参数的设置方法、装置、通信设备及存储介质
WO2022067730A1 (zh) 一种双终端设备进行数据传输的方法及装置
WO2022082543A1 (zh) Iab节点的移植方法及装置
WO2022257629A1 (zh) 一种无线通信方法及通信装置
CN116456386A (zh) 由用户设备执行的方法以及用户设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21797559

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021797559

Country of ref document: EP

Effective date: 20221109

NENP Non-entry into the national phase

Ref country code: DE