Communication configuration method and communication device

Abstract

The present application provides a method and apparatus for communication configuration. By determining RLC bearer configuration information between the sending UE and a relay UE, as well as RLC bearer configuration information between the relay UE and a receiving UE, and by interacting with different UEs regarding the corresponding RLC bearer configuration, a sending UE can ensure end-to-end QoS requirements when communicating with a receiving UE via a relay UE, thereby improving communication quality in a U2U relay scenario.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a communication configuration method and a communication device. Background Art

[0002] In L2 (Layer 2) user equipment (UE) to UE (U2U) relay communications, since the data sent by the relay UE to the receiving UE does not come from its own upper layer but from the transmitting UE, when the relay UE is in the radio resource control (RRC) connected state, it cannot meet the upper layer's indicated quality of service (QoS) information, thereby triggering the conditions for reporting the SidelinkUEInformation (SUI) message to obtain the sidelink radio bearer (SLRB) configuration. Furthermore, since the QoS requirements of data packets sent on the sidelinks of the transmitting UE and the relay UE, and on the sidelink between the relay UE and the receiving UE, are closely related, if the transmitting UE and the relay UE obtain the radio link control (RLC) bearer configurations of the two sidelinks separately, the QoS requirements from the relay UE to the receiving UE may not be guaranteed. Summary of the Invention

[0003] The present application provides a communication configuration method that can ensure the end-to-end QoS requirements when a sending UE communicates with a receiving UE through a relay UE, thereby improving the communication quality of the U2U relay.

[0004] In a first aspect, a method for communication configuration is provided, which can be applied to a first terminal device or to a component within the first terminal device (such as a chip, a chip system or a processor, etc.), including: determining a first message, the first message including first information and second information, the first information including radio link control RLC bearer configuration information of a first side link, the second information including RLC bearer configuration information of a second side link, the first side link being a side link between the first terminal device and a third terminal device, and the second side link being a side link between the third terminal device and the second terminal device; the first terminal device sends the first message to the third terminal device.

[0005] In the above technical solution, the RLC bearer configuration information between the two side links between the sending UE and the relay UE and between the relay UE and the receiving UE is determined by the sending UE, which can ensure the end-to-end QoS requirements when the sending UE communicates with the receiving UE through the relay UE, thereby improving the communication quality of the U2U relay.

[0006] In combination with the first aspect, in some implementations of the first aspect, the first terminal device and the second terminal device communicate through a third terminal device.

[0007] In combination with the first aspect, in some implementations of the first aspect, the first message further includes first quality of service QoS information, and the first QoS information is QoS information corresponding to the second information.

[0008] In combination with the first aspect, in certain implementations of the first aspect, determining the first message includes: receiving a second message sent by a first network device, wherein the second message includes first information and second information, or the second message includes the first information; and the first terminal device determines the first message based on the second message.

[0009] In combination with the first aspect, in certain implementations of the first aspect, before receiving the second message sent by the first network device, the method also includes: sending second QoS information to the first network device, wherein the second QoS information is QoS information between the first terminal device and the second terminal device, and the second message is determined by the first network device based on the second QoS information.

[0010] Optionally, when the first terminal device is in the RRC connection state, method one: the first terminal device reports the end-to-end QoS information corresponding to the second terminal device (i.e., the second QoS information), and then the base station of the first terminal device (i.e., the first network device) sends the RLC bearer configuration information of the first unicast connection and the RLC bearer configuration information of the second unicast connection to the first terminal device. Optionally, the base station of the first terminal device can also determine the QoS information associated with the RLC bearer configuration information of the second unicast connection, and send the QoS information to the first terminal device; method two: the first terminal device reports the end-to-end QoS information corresponding to the second terminal device, and the base station of the first terminal device only sends the RLC bearer configuration information of the first unicast connection to the first terminal device. The first terminal device determines the RLC bearer configuration information of the second unicast connection based on the RLC bearer configuration information of the first unicast connection and the end-to-end QoS information between the first terminal device and the second terminal device. Optionally, the first terminal device can also determine the QoS information associated with the RLC bearer configuration information of the second unicast connection based on the RLC bearer configuration information of the first unicast connection and / or the end-to-end QoS information corresponding to the RLC bearer configuration information.

[0011] In combination with the first aspect, in certain implementations of the first aspect, determining the first message includes: obtaining first information from a third message, wherein the third message includes a system information block SIB system broadcast message and / or pre-configuration information; and the first terminal device determines the second information based on the first information.

[0012] Optionally, when the first terminal device is in a non-RRC connected state, for example, the first terminal device is in an RRC idle state, an RRC inactive state, an OOC state, etc. The first terminal device determines the RLC bearer configuration information of the second unicast connection based on the RLC bearer configuration information of the first unicast connection obtained from the SIB system broadcast message and / or pre-configured information (i.e., an example of the third message) and the end-to-end QoS information between the first terminal device and the second terminal device corresponding to the RLC bearer configuration information.

[0013] In combination with the first aspect, in some implementations of the first aspect, the method further includes: receiving a first response message sent by a third terminal device, the first response message being used to indicate whether part or all of the configuration of the first information and the second information is successful or failed.

[0014] In combination with the first aspect, in certain implementations of the first aspect, part of the first information and the second information is successfully configured, including: the RLC bearer configuration information of the side link related to the third terminal device in the first information and the second information is successfully configured.

[0015] In combination with the first aspect, in certain implementations of the first aspect, when the first response message is used to indicate a configuration failure of the first information and the second information, the first response message is also specifically used to indicate a configuration failure of part or all of the RLC bearer configuration information of the side link related to the second terminal device and / or the third terminal device in the first information and the second information.

[0016] In the second aspect, a method for communication configuration is provided, which can be applied to a third terminal device or to a component within the third terminal device (such as a chip, a chip system or a processor, etc.), including: receiving a first message sent by a first terminal device, the first message including first information and second information, the first information including radio link control RLC bearer configuration information of a first side link, the second information including RLC bearer configuration information of a second side link, the first side link being a side link between the first terminal device and the third terminal device, and the second side link being a side link between the third terminal device and the second terminal device; sending a fourth message to the second terminal device, the fourth message including third information, and the third information being all or part of the second information.

[0017] In the above technical solution, the relay UE receives the RLC bearer configuration information of the two side links sent by the sending UE, and forwards part or all of the RLC bearer configuration information of the side link between the relay UE and the receiving UE to the receiving UE. This can ensure the end-to-end QoS requirements when the sending UE communicates with the receiving UE through the relay UE, thereby improving the communication quality of the U2U relay.

[0018] In combination with the second aspect, in some implementations of the second aspect, the first terminal device and the second terminal device communicate through a third terminal device.

[0019] In combination with the second aspect, in some implementations of the second aspect, the first message also includes first quality of service QoS information, and the first QoS information is QoS information corresponding to the second information. The method also includes: sending the first QoS information to the second terminal device.

[0020] In combination with the second aspect, in some implementations of the second aspect, the method further includes: sending a first response message to the first terminal device, the first response message being used to indicate whether part or all of the configuration of the first information and the second information is successful or failed.

[0021] In combination with the second aspect, in certain implementations of the second aspect, part of the first information and the second information is successfully configured, including: the RLC bearer configuration information of the side link related to the third terminal device in the first information and the second information is successfully configured.

[0022] In combination with the second aspect, in certain implementations of the second aspect, when the first response message is used to indicate a configuration failure of the first information and the second information, the first response message is also used to specifically indicate a configuration failure of part or all of the RLC bearer configuration information of the side link related to the second terminal device and / or the third terminal device in the first information and the second information.

[0023] In combination with the second aspect, in some implementations of the second aspect, the method further includes: receiving a second response message sent by the second terminal device, the second response message being used to indicate success or failure of the third information configuration.

[0024] On the third aspect, a method for bearer release is provided, which can be applied to a first terminal device or to a component within the first terminal device (such as a chip, a chip system or a processor, etc.), including: determining a first message, the first message including first information and / or second information, the first information including radio link control RLC bearer release information of a first side link, the second information including RLC bearer release information of a second side link, the first side link being a side link between the first terminal device and a third terminal device, and the second side link being a side link between the third terminal device and the second terminal device; the first terminal device sends a first message to the third terminal device.

[0025] In combination with the third aspect, in some implementations of the third aspect, the first terminal device and the second terminal device communicate through a third terminal device.

[0026] In combination with the third aspect, in certain implementations of the third aspect, the method also includes: receiving a first response message sent by a third terminal device, the first response message being used to indicate the success or failure of releasing part or all of the RLC bearer of the first side link and the radio link control RLC bearer of the second side link.

[0027] In combination with the third aspect, in certain implementations of the third aspect, part of the RLC bearer of the first side link and the RLC bearer of the second side link is released successfully, including: the RLC bearer of the side link related to the third terminal device in the RLC bearer of the first side link and the RLC bearer of the second side link is released successfully.

[0028] In combination with the third aspect, in certain implementations of the third aspect, when the first response message is used to indicate the failure to release the RLC bearer of the first side link and the RLC bearer of the second side link, the first response message is also used to specifically indicate the failure to release part or all of the RLC bearers of the side link related to the second terminal device and / or the third terminal device in the first information and the second information.

[0029] In a fourth aspect, a method for bearer release is provided, which can be applied to a third terminal device or to a component within the third terminal device (such as a chip, a chip system or a processor, etc.), including: receiving a first message sent by a first terminal device, the first message includes first information and / or second information, the first information includes radio link control RLC bearer release information of a first side link, the second information includes RLC bearer release information of a second side link, the first side link is a side link between the first terminal device and the third terminal device, and the second side link is a side link between the third terminal device and the second terminal device; the third terminal device determines a second message based on the first message, the second message includes the second information; and sends the second message to the second terminal device.

[0030] In combination with the fourth aspect, in certain implementations of the fourth aspect, the first terminal device and the second terminal device communicate through a third terminal device.

[0031] In combination with the fourth aspect, in certain implementations of the fourth aspect, the method further includes: sending a first response message to the first terminal device, the first response message being used to indicate the success or failure of releasing part or all of the RLC bearers of the first side link and the RLC bearers of the second side link.

[0032] In combination with the fourth aspect, in certain implementations of the fourth aspect, part of the RLC bearer of the first side link and the RLC bearer of the second side link is released successfully, including: the RLC bearer of the side link related to the third terminal device in the RLC bearer of the first side link and the RLC bearer of the second side link is released successfully.

[0033] In combination with the fourth aspect, in certain implementations of the fourth aspect, when the first response message is used to indicate the failure to release the RLC bearer of the first side link and the RLC bearer of the second side link, the first response message is also used to specifically indicate the failure to release part or all of the RLC bearers of the side link related to the second terminal device and / or the third terminal device in the first information and the second information.

[0034] In combination with the fourth aspect, in certain implementations of the fourth aspect, the method further includes: receiving a second response message sent by the second terminal device, the second response message being used to indicate success or failure of the RLC bearer release of the second side link.

[0035] In a fifth aspect, the present application provides a communication device having the functionality to implement the method of the first aspect or any possible implementation thereof, or the functionality to implement the method of the third aspect or any possible implementation thereof. The functions may be implemented in hardware or by hardware executing corresponding software implementations. The hardware or software includes one or more units corresponding to the above functions.

[0036] In one example, the communication device may be a first terminal device.

[0037] In another example, the communication device may be a component (eg, a chip or an integrated circuit) installed in the first terminal device.

[0038] In a sixth aspect, the present application provides a communication device having the functionality to implement the method of the second aspect or any possible implementation thereof, or the functionality to implement the method of the fourth aspect or any possible implementation thereof. The functions may be implemented in hardware or by hardware executing corresponding software implementations. The hardware or software includes one or more units corresponding to the above functions.

[0039] In one example, the communication device may be a third terminal device.

[0040] In another example, the communication device may be a component (eg, a chip or an integrated circuit) installed in the third terminal device.

[0041] In the seventh aspect, the present application provides a communication device, comprising at least one processor, the at least one processor being coupled to at least one memory, the at least one memory being used to store computer programs or instructions, and the at least one processor being used to call and run the computer program or instructions from the at least one memory, so that the communication device executes the method in the first aspect or any possible implementation thereof, or executes the method in the third aspect or any possible implementation thereof.

[0042] In one example, the communication device may be a first terminal device.

[0043] In another example, the communication device may be a component (eg, a chip or an integrated circuit) installed in the first terminal device.

[0044] In an eighth aspect, the present application provides a communication device comprising at least one processor, the at least one processor being coupled to at least one memory, the at least one memory being used to store computer programs or instructions, and the at least one processor being used to call and run the computer program or instructions from the at least one memory, so that the communication device executes the method of the second aspect or any possible implementation thereof, or executes the method of the fourth aspect or any possible implementation thereof.

[0045] In one example, the communication device may be a third terminal device.

[0046] In another example, the communication device may be a component (eg, a chip or an integrated circuit) installed in the third terminal device.

[0047] In a ninth aspect, a processor is provided, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive a signal via the input circuit and transmit a signal via the output circuit, so that the method of the first aspect or any possible implementation thereof is implemented, or the method of the third aspect or any possible implementation thereof is implemented.

[0048] In a specific implementation, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a trigger, or various logic circuits. The input signal received by the input circuit may be, for example, but not limited to, received and input by a receiver, and the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter. The input circuit and the output circuit may be the same circuit, which functions as an input circuit and an output circuit at different times. The embodiments of the present application do not limit the specific implementation of the processor and various circuits.

[0049] In a tenth aspect, a processor is provided, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive a signal via the input circuit and transmit a signal via the output circuit, so as to implement the method of the second aspect or any possible implementation thereof, or the method of the fourth aspect or any possible implementation thereof.

[0050] In a specific implementation, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a trigger, or various logic circuits. The input signal received by the input circuit may be, for example, but not limited to, received and input by a receiver, and the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter. The input circuit and the output circuit may be the same circuit, which functions as an input circuit and an output circuit at different times. The embodiments of the present application do not limit the specific implementation of the processor and various circuits.

[0051] In the eleventh aspect, the present application provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are run on a computer, the method in the first aspect or any possible implementation thereof is executed, or the method in the third aspect or any possible implementation thereof is executed.

[0052] In the twelfth aspect, the present application provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are run on a computer, the method in the second aspect or any possible implementation thereof is executed, or the method in the fourth aspect or any possible implementation thereof is executed.

[0053] In a thirteenth aspect, the present application provides a computer program product, which includes a computer program code. When the computer program code is run on a computer, the method in the first aspect or any possible implementation thereof is executed, or the method in the third aspect or any possible implementation thereof is executed.

[0054] In a fourteenth aspect, the present application provides a computer program product, which includes a computer program code. When the computer program code is run on a computer, the method in the second aspect or any possible implementation thereof is executed, or the method in the fourth aspect or any possible implementation thereof is executed.

[0055] In the fifteenth aspect, the present application provides a chip comprising a processor and a communication interface, wherein the communication interface is used to receive a signal and transmit the signal to the processor, and the processor processes the signal so that the method in the first aspect or any possible implementation thereof is executed, or the method in the third aspect or any possible implementation thereof is executed.

[0056] In the sixteenth aspect, the present application provides a chip comprising a processor and a communication interface, wherein the communication interface is used to receive a signal and transmit the signal to the processor, and the processor processes the signal so that the method in the second aspect or any possible implementation thereof is executed, or the method in the fourth aspect or any possible implementation thereof is executed.

[0057] In the seventeenth aspect, the present application provides a communication system, comprising the communication device as described in the seventh aspect and the communication device as described in the eighth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 This is a schematic diagram of a UE to UE relay scenario provided in this application.

[0059] Figure 2 This is a schematic diagram of the protocol stack of the UE to UE relay user plane based on L2.

[0060] Figure 3 This is a schematic flowchart of a communication configuration method provided by this application.

[0061] Figure 4 This is a schematic flowchart of a communication release method provided by this application.

[0062] Figure 5 It is a schematic flowchart of another communication configuration method provided by this application.

[0063] Figure 6 This is a schematic flowchart of another communication release method provided by this application.

[0064] Figure 7 It is a schematic flow chart of another communication configuration method proposed in this application.

[0065] Figure 8 This is a schematic block diagram of the communication device 1000 provided in this application.

[0066] Figure 9 This is a schematic block diagram of the communication device 2000 provided in this application.

[0067] Figure 10 This is a schematic structural diagram of the communication device 10 provided in this application.

[0068] Figure 11 This is a schematic structural diagram of the communication device 20 provided in this application. DETAILED DESCRIPTION

[0069] The technical solution in this application will be described below with reference to the accompanying drawings.

[0070] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: global system for mobile communications (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, universal mobile telecommunication system (UMTS), world-wide interoperability for microwave access (WiMAX) communication system, fifth generation (5G) system or new radio (NR), and other future evolved communication systems, vehicle-to-X (V2X), where V2X may include vehicle-to-network (V2N), vehicle-to-vehicle (V2N) and vehicle-to-network (V2N). Vehicle-to-vehicle (V2V), vehicle to infrastructure (V2I), vehicle to pedestrian (V2P), long-term evolution-vehicle (LTE-V), Internet of Vehicles, machine type communication (MTC), Internet of Things (IoT), long-term evolution-machine (LTE-M), machine to machine (M2M), etc.

[0071] See also Figure 1 , Figure 1 This is a schematic diagram of a UE to UE relay scenario provided by this application. Figure 1As shown, the network architecture includes at least three terminal devices. It should be understood that the terminal devices in the embodiments of the present application may also be referred to as: user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc. The network architecture includes at least one source user equipment (sourceUE), one relay user equipment (relay UE) and one destination user equipment (destination UE). Among them, sourceUE may also be referred to as sending UE, and destination UE may also be referred to as receiving UE, and this application does not make specific restrictions on this. During U2U (i.e. UE to UE) relay communication, the source UE communicates with the destination UE through one or more relay UEs, and the source UE and the destination UE can transmit data and signaling through the relay UE. This scenario can be used to enhance sidelink (SL) coverage (for example, when the source UE and destination UE have poor coverage signals or are out of coverage) or capacity (for example, when the relay UE is a highly capable device). The source UE, relay UE, and destination UE can be in radio resource control (RRC) connected state, RRC idle state, RRC inactive state, or out of coverage (OOC) state. SL unicast communication is performed between the source UE and relay UE, and between the relay UE and destination UE. In unicast communication mode, the two UEs need to first establish a unicast connection. After the unicast connection is established, the sending UE (Tx UE) can send unicast data to the receiving UE (Rx UE), and only the Rx UE can receive and parse the data. Figure 1 This is just a simplified diagram for example. The relay scenario can also include other network devices. Figure 1 Not drawn in.

[0072] The terminal device may be a device that provides voice / data connectivity to users, such as a handheld device or vehicle-mounted device with wireless connection function. At present, some examples of terminal devices are: mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or future evolved public land mobile communication networks (PLMNs). The terminal device in the wireless communication system (PLMN) and / or any other suitable device for communicating on the wireless communication system is not limited in the embodiments of the present application.

[0073] Wearable devices, also known as wearable smart devices, are a general term for wearable devices that use wearable technology to intelligently design and develop wearable devices for daily wear, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include those that are fully functional, large in size, and can achieve full or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0074] In addition, in the embodiments of the present application, the terminal device can also be a terminal device in an Internet of Things system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection.

[0075] In addition, in an embodiment of the present application, the terminal device may also include sensors such as smart printers, train detectors, and gas stations. Its main functions include collecting data (part of the terminal device), receiving control information and downlink data from the network device, and sending electromagnetic waves to transmit uplink data to the network device.

[0076] The network device in the embodiment of the present application can be a device for communicating with a terminal device. The network device can be a base transceiver station (BTS) in a global system for mobile communications (GSM) system or a code division multiple access (CDMA) system, a base station B (nodeB, NB) in a wideband code division multiple access (WCDMA) system, an evolved nodeB (eNB or eNodeB) in an LTE system, a wireless controller in a cloud radio access network (CRAN) scenario, a radio network controller (RNC), a base station controller (BSC), a home base station (for example, a home evolved nodeB, or home nodeB, HNB), a baseband unit (BBU), or the network device can be a relay station, an access point, an in-vehicle device, a wearable device, a network device in a 5G network, or a network device in a future evolved PLMN network, etc., and can be an access point (access point) in a WLAN. point, AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc., can be a gNB or transmission point (TRP or TP) in a new radio system (NR) system, or one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or it can also be a network node constituting a gNB or transmission point, such as a baseband unit (BBU), or a distributed unit (DU), etc., which is not limited in the embodiments of the present application.

[0077] There are two implementation methods for UE-to-UE relay discussed in current standards: L3 (Layer 3)-based relay and L2 (Layer 2)-based relay. In the L3-based relay, user plane data is relayed at the IP layer. That is, the relay UE parses the data packets sent from the source UE to the destination UE at the IP layer and forwards them to the destination UE based on information such as the IP address.

[0078] See also Figure 2 , Figure 2 This diagram illustrates the protocol stack for L2-based UE-to-UE relay user plane data. In L2-based relay, user plane data is relayed below the Packet Data Convergence Protocol (PDCP) layer. The relay UE maintains the radio link control (RLC) bearer and relays SL data between UE1 (sending UE) and UE2 (receiving UE).

[0079] See also Figure 3 , Figure 3 This is a schematic flowchart of a communication configuration method provided by this application.

[0080] S301, UE1 (i.e., an example of a first terminal device) determines a first message.

[0081] The first message includes first information and second information, the first information includes RLC bearer configuration information of the first side link, the second information includes RLC bearer configuration information of the second side link, the first side link is the side link between the first terminal device and the third terminal device, and the second side link is the side link between the third terminal device and the second terminal device.

[0082] It can be understood that the side link can be a side link of a unicast connection, a side link of a multicast connection, or a side link of a broadcast connection.

[0083] As an example and not a limitation, the following description is given using an example in which the first sidelink and the second sidelink are sidelinks of a unicast connection, i.e., the RLC bearer configuration information of the first sidelink is the RLC bearer configuration information of the first unicast connection, and the RLC bearer configuration information of the second sidelink is the RLC bearer configuration information of the second unicast connection. Optionally, the unicast connection can be a PC5-S connection or a PC5-RRC connection.

[0084] Optionally, UE1 can also determine the QoS information corresponding to the RLC bearer configuration of the second unicast connection (i.e., an example of the first QoS information). Optionally, the QoS information can be carried in the first message or sent through other messages, and this application does not make specific restrictions on this. Among them, the QoS information may include one or more parameters such as PC5 port 5G service quality identifier PQI (PC5 5G QoS identifier, PC5 5QI), guaranteed flow bit rate (guaranteed flow bit rate, GFBR), maximum flow bit rate (maximum flow bit rate, MFBR), PC5 port service quality flow identifier (PC5QoS flow identifier, PFI) and so on.

[0085] Optionally, when UE1 is in different states, the first message may be determined specifically as follows:

[0086] ①When UE1 is in RRC connected state.

[0087] Method 1: UE1 reports the end-to-end QoS information corresponding to UE2 (i.e., an example of the second terminal device) (optionally, UE1 can also report indication information including U2U relay and / or hop count information of U2U relay), after which UE1's base station sends a second message to UE1, and the second message includes the first information and the second information, that is, the second message includes the RLC bearer configuration information of the first unicast connection and the RLC bearer configuration information of the second unicast connection.

[0088] Optionally, the base station of UE1 may also determine QoS information associated with the RLC bearer configuration information of the second unicast connection, and send the QoS information to UE1.

[0089] Method 2: UE1 reports the end-to-end QoS information corresponding to UE2. UE1's base station only sends the RLC bearer configuration information of the first unicast connection to UE1. UE1 determines the RLC bearer configuration information of the second unicast connection based on the RLC bearer configuration information of the first unicast connection and the end-to-end QoS information between UE1 and UE2.

[0090] Optionally, UE1 may also determine the QoS information associated with the RLC bearer configuration information of the second unicast connection according to the RLC bearer configuration information of the first unicast connection and / or the end-to-end QoS information corresponding to the RLC bearer configuration information.

[0091] ② When UE1 is in a non-RRC connected state, for example, UE1 is in an RRC idle state, an RRC inactive state, an OOC state, etc.

[0092] UE1 determines the RLC bearer configuration information of the second unicast connection based on the RLC bearer configuration information of the first unicast connection obtained from the SIB system broadcast message and / or pre-configured information (i.e., an example of the third message) and the end-to-end QoS information corresponding to the RLC bearer configuration information.

[0093] Optionally, UE1 may also determine the QoS information associated with the RLC bearer configuration information of the second unicast connection according to the RLC bearer configuration information of the first unicast connection and / or the end-to-end QoS information corresponding to the RLC bearer configuration information.

[0094] The RLC bearer configuration information includes RLC configuration information and logical channel (LCH) configuration information, which can be divided into three parts: parameters related only to sending, parameters related to both sending and receiving, and parameters related only to receiving.

[0095] ① Parameters related only to sending (including one or more of the following parameters):

[0096] - RLC configuration information includes: the duration of the polling retransmission timer T-PollRetransmit, the parameters pollPDU and pollByte that control the triggering of polling, and the maximum number of automatic repeat request (ARQ) retransmissions allowed in RLC AM mode;

[0097] -LCH configuration information includes: LCH priority, related parameters for controlling the execution of logical channel priority (LCP) (such as logical channel priority, prioritized bit rate (PBR), bucket size duration (BSD), whether to allow the use of configured grant type 1), whether to enable hybrid automatic repeat request (HARQ) feedback, the scheduling request (SR) resource associated with the LCH, the logical channel group (LCG) to which it belongs, etc.

[0098] ② Parameters related to both sending and receiving (including one or more of the following parameters):

[0099] - RLC configuration information includes: RLC mode, RLC serial number (SN) length;

[0100] - The LCH configuration information includes: the logical channel ID (LCID).

[0101] It should be understood that only the parameters related to reception are generally determined by the receiving UE, and the existing technology and this application do not require the UEs to interact with each other for these parameters.

[0102] It is understood that the RLC bearer configuration information for the first unicast connection refers to configuration parameters related to both transmission and reception in the RLC bearer, i.e., includes the configuration parameters in section ① of the aforementioned RLC bearer configuration information. The RLC bearer configuration information for the second unicast connection refers to configuration parameters related to both transmission and reception in the RLC bearer and configuration parameters related only to transmission, i.e., includes the configuration parameters in sections ① and ② of the aforementioned RLC bearer configuration information.

[0103] Optionally, the configuration parameters related to both sending and receiving in the RLC bearer configuration information of the first unicast connection and the configuration parameters related to both sending and receiving in the RLC bearer configuration information of the second unicast connection are the same.

[0104] Optionally, when the configuration parameters related to both sending and receiving are the same in the RLC bearer configuration information of the first unicast connection and the second unicast connection, the base station of UE1 can send only one copy of the configuration parameters related to both sending and receiving to UE1. Similarly, in the following S302, UE1 can also send only one copy of the configuration parameters to the relay UE.

[0105] S302, UE1 sends a first message to the relay UE (i.e., an example of the third terminal device).

[0106] Optionally, UE1 may send the first message through an RRCReconfigurationSidelink message.

[0107] Optionally, UE1 further sends QoS information corresponding to the RLC bearer configuration information of the second unicast connection to the relay UE.

[0108] S303: The relay UE sends a fourth message to UE2.

[0109] The fourth message includes third information, and the third information is all or part of the second information.

[0110] Optionally, since UE2 only needs to receive parameters related to both sending and receiving in the RLC bearer configuration information of the second unicast connection, the relay UE can send parameters related to both sending and receiving in the RLC bearer configuration information of the second unicast connection to UE2, without sending parameters only related to sending in the RLC bearer configuration information of the second unicast connection.

[0111] Exemplarily, the relay UE may send the fourth message via an RRCReconfigurationSidelink message.

[0112] Optionally, the relay UE further sends QoS information corresponding to the RLC bearer configuration information of the second unicast connection to UE2.

[0113] It can be understood that, for the relay UE, after receiving the first message sent by UE1, the relay UE triggers the sending of the RCL bearer configuration information of the second unicast connection to UE2.

[0114] S304, UE2 sends a second response message to the relay UE.

[0115] It should be understood that the second response message is a response of UE2 to the application of the RLC bearer configuration information of the second unicast connection included in the fourth message.

[0116] Optionally, the second response message is used to indicate that UE2 has successfully applied the RLC bearer configuration information of the second unicast connection. For example, the second response message may be an RRCReconfigurationCompleteSidelink message.

[0117] It should be understood that in this application, the UE successfully applies the RLC bearer configuration information can also be expressed as the UE successfully complies with the RLC bearer configuration information, and the UE cannot apply the RLC bearer configuration information can also be expressed as the UE cannot comply with the RLC bearer configuration information. The two descriptions can be replaced, and this application does not make specific limitations on this.

[0118] Optionally, the second response message is used to indicate that the configuration of the RLC bearer configuration information of the second unicast connection failed, that is, UE2 cannot apply the parameters related to sending and receiving in the RLC bearer configuration information of the second unicast connection, that is, it cannot comply with the corresponding configuration. For example, the second response message can be an RRCReconfigurationFailureSidelink message.

[0119] S305: The relay UE sends a first response message to UE1.

[0120] It should be understood that the first response message is a response to the application of the RLC bearer configuration information of the first unicast connection and the RLC bearer configuration information of the second unicast connection.

[0121] Optionally, the first response message is used to indicate that both the RLC bearer configuration information of the first unicast connection and the RLC bearer configuration information of the second unicast connection are configured successfully. For example, the first response message may be an RRCReconfigurationCompleteSidelink message.

[0122] Optionally, the first response message may also be an RRCReconfigurationFailureSidelink message, used to indicate that the RLC bearer configuration information of the first unicast connection and the RLC bearer configuration information of the second unicast connection have failed in whole or in part. For example, the first response message may be an RRCReconfigurationFailureSidelink message.

[0123] It should be understood that in this embodiment, when the second response message is an RRCReconfigurationFailureSidelink message, the first response message must be an RRCReconfigurationFailureSidelink message. It can also be understood that only when the second response message is an RRCReconfigurationCompleteSidelink message, the first response message can be an RRCReconfigurationCompleteSidelink message.

[0124] Optionally, when the first response message is an RRCReconfigurationFailureSidelink message, the first response message may further specifically indicate the cause of the failure. For example, the first response message further includes indication information, which may be used to indicate that the relay UE is unable to complete the configuration parameters related to both sending and receiving in the RLC bearer configuration information of the first unicast connection (i.e., the relay UE fails to be configured as an Rx UE), and / or, to indicate that the relay UE is unable to complete the configuration parameters only related to sending in the RLC bearer configuration information of the second unicast connection (i.e., the relay UE fails to be configured as a Tx UE), and / or, to indicate that the relay UE is unable to complete the configuration parameters related to both sending and receiving in the RLC bearer configuration information of the second unicast connection (i.e., the relay UE fails to be configured as a Tx UE), and / or, to indicate that UE2 is unable to complete the configuration parameters related to both sending and receiving in the RLC bearer configuration information of the second unicast connection (i.e., the relay UE fails to be configured as an Rx UE).

[0125] Optionally, when the relay UE is in the RRC connected state, S306 is executed, and the relay UE reports all or part of the RLC bearer configuration information of the second unicast connection and the QoS information corresponding to the second unicast connection RLC bearer configuration information to its own base station.

[0126] It should be noted that S306 can be executed after the second response message in S304 indicates success, and has no time relationship with S305.

[0127] Optionally, the relay UE may report the LCID of the RLC bearer configuration information of the second unicast connection (or the index of the RLC bearer configuration information of the second unicast connection) and its corresponding QoS information, that is, report an identifier / index and its corresponding QoS information.

[0128] Optionally, the base station of the relay UE responds to the information sent in S306. The base station of the relay UE can configure the SR resources associated with LCH and / or the correspondence between LCH and LCG for the relay UE by obtaining all or part of the configuration information of the RCL bearer configuration information of the second unicast connection and the QoS information corresponding to the RLC bearer configuration information of the second unicast connection. Specifically, the base station of the relay UE configures the LCID (or the index of the RLC bearer configuration information) and its corresponding SR resource information and / or LCG information for the relay UE, that is, configures an identifier / index and its corresponding SR resource information and / or LCG information, that is, the base station of the relay UE can allocate sidelink transmission resources for the relay UE by obtaining the RCL bearer configuration information of the second unicast connection, thereby ensuring the communication quality of the sidelink communication. It can be understood that the SR resource information can be an SR identifier, and the LCG information can be an LCG identifier.

[0129] Optionally, in S307 , UE1 sends PDCP entity configuration information and / or SDAP entity configuration information to UE2.

[0130] It should be noted that the execution of S307 is relatively independent and has no temporal execution order, for example, it can be executed before S302.

[0131] Optionally, in S308, UE2 sends a third response message to UE1.

[0132] It should be understood that the third response message is a response message of UE2 to S307. For example, the third response message may be an RRCReconfigurationCompleteSidelink message, or an RRCReconfigurationFailureSidelink message.

[0133] In the above technical solution, UE1 determines the RLC bearer configuration information of the first unicast connection and the RLC bearer configuration information of the second unicast connection, and UE1 and the relay UE, as well as the relay UE and UE2, perform corresponding interactions on the RLC bearer configuration information and the response messages of the success or failure of the application of the RLC bearer configuration information. This can ensure the end-to-end QoS requirements when UE1 communicates with UE2 through the relay UE, and improve the communication quality of the U2U relay.

[0134] The above embodiment is a process of establishing an RLC bearer. Below, this application will describe in detail the RLC bearer release process.

[0135] See also Figure 4 , Figure 4 This is a schematic flow chart of a load release method provided in this application.

[0136] S401, UE1 (i.e., an example of a first terminal device) determines a first message.

[0137] The first message includes first information and / or second information, the first information includes RLC bearer release information of the first side link, the second information includes RLC bearer release information of the second side link, the first side link is the side link between the first terminal device and the third terminal device, and the second side link is the side link between the third terminal device and the second terminal device.

[0138] Optionally, the RLC bearer release information may be indicated by a configuration index or LCID corresponding to the RLC bearer, which is not specifically limited in this application.

[0139] It can be understood that the side link can be a side link of a unicast connection, a side link of a multicast connection, or a side link of a broadcast connection.

[0140] As an example and not a limitation, the following description is given by taking as an example a case where the first sidelink and the second sidelink are sidelinks of a unicast connection, i.e., the RLC bearer release information of the first sidelink is the RLC bearer release information of the first unicast connection, and the RLC bearer release information of the second sidelink is the RLC bearer release information of the second unicast connection. Optionally, the unicast connection can be a PC5-S connection or a PC5-RRC connection.

[0141] S402, UE1 sends a first message to the relay UE (i.e., an example of the third terminal device).

[0142] Optionally, UE1 may send the first message through an RRCReconfigurationSidelink message.

[0143] Optionally, the first message may include a configuration index or LCID corresponding to the corresponding first unicast connection RLC bearer and / or the second unicast connection RLC bearer.

[0144] It should be noted that when the first message in S401 only contains the first information, the relay UE determines the second message based on the first information, and the second message includes the second unicast connection RLC bearer release information, that is, when the RLC bearer of the first unicast connection needs to be released, in order to ensure that the communication conditions of the two unicast connections are consistent, the RLC bearer corresponding to the second unicast connection also needs to be released.

[0145] S403, relay UE sends a second message to UE2 (an example of a second terminal device).

[0146] Optionally, the second message may include a configuration index or LCID corresponding to the RLC bearer of the second unicast connection.

[0147] Optionally, the relay UE may send the second message through an RRCReconfigurationSidelink message.

[0148] S404, UE2 sends a second response message to the relay UE.

[0149] It should be understood that the second response message is a response of UE2 to the RLC bearer release information of the second unicast connection in the second message.

[0150] Optionally, the second response message is used to indicate that UE2 has successfully released the RLC bearer of the second unicast connection. For example, the second response message may be an RRCReconfigurationCompleteSidelink message.

[0151] Optionally, the second response message is used to indicate that UE2 fails to release the RLC bearer of the second unicast connection, that is, UE2 as an Rx UE cannot release the RLC bearer of the second unicast connection. For example, the second response message may be an RRCReconfigurationFailureSidelink message.

[0152] S405: The relay UE sends a first response message to UE1.

[0153] It should be understood that the first response message is a response of the relay UE to the RLC bearer release information of the first unicast connection and the RLC bearer release information of the second unicast connection.

[0154] Optionally, the first response message is used to indicate that the RLC bearer of the first unicast connection and the RLC bearer of the second unicast connection are released successfully. For example, the second response message may be an RRCReconfigurationCompleteSidelink message.

[0155] Optionally, the first response message is used to indicate that all or part of the RLC bearers of the first unicast connection and the RLC bearers of the second unicast connection have failed to be released. For example, the second response message may be an RRCReconfigurationFailureSidelink message.

[0156] It should be understood that in this implementation, when the second response message is an RRCReconfigurationFailureSidelink message, the first response message must be an RRCReconfigurationFailureSidelink message. It can also be understood that only when the second response message is an RRCReconfigurationCompleteSidelink message, the first response message can be an RRCReconfigurationCompleteSidelink message.

[0157] Optionally, when the first response message is an RRCReconfigurationFailureSidelink message, the first response message may further specifically indicate the reason for the release failure. For example, the first response message further includes indication information, which may be used to indicate that the relay UE failed to release the RLC bearer of the first unicast connection (i.e., the relay UE failed to release as an Rx UE), and / or to indicate that the relay UE failed to release the RLC bearer of the second unicast connection (i.e., the relay UE failed to release as a Tx UE), and / or to indicate that UE2 failed to release the RLC bearer of the second unicast connection (i.e., UE2 failed to release as an Rx UE).

[0158] Optionally, when the relay UE is in the RRC connected state, S406 is executed, and the relay UE reports indication information of releasing the RLC bearer of the second unicast connection to its own base station.

[0159] It should be noted that S406 can be executed only after S404 and has no time sequence relationship with S405.

[0160] Optionally, the relay UE may report the LCID of the released RLC bearer of the second unicast connection or the index of the configuration information of the released RLC bearer of the second unicast connection to the base station of the relay UE, that is, report an identifier or index.

[0161] Optionally, the base station of the relay UE updates the SR resources associated with the LCH and / or the correspondence between the LCH and the LCG for the relay UE; specifically, the base station of the relay UE updates the LCID (or RLC bearer configuration information index) and its corresponding SR resource information and / or LCG information for the relay UE, that is, updates an identifier / index and its corresponding SR resource information and / or LCG information.

[0162] Optionally, execute S407, UE1 sends PDCP entity release information and / or SDAP entity release information to UE2.

[0163] It should be noted that S407 has no execution order in terms of time, for example, it can be executed before S401.

[0164] Optionally, execute S408 , and UE2 sends a third response message to UE1.

[0165] It should be understood that this message is a response message to S407. For example, the third response message may be an RRCReconfigurationCompleteSidelink message, or an RRCReconfigurationFailureSidelink message.

[0166] The following combination Figure 5 This application provides another communication configuration method, the basic logic is the same as Figure 3 The corresponding embodiment is similar, except that the RLC bearer configuration information exchange for the first unicast connection is completed before the RLC bearer configuration information exchange for the second unicast connection, that is, the relay UE can send a response message to UE1 without waiting for receiving a response message from UE2. The method is described in detail below.

[0167] See also Figure 5 , Figure 5 It is a schematic flowchart of another communication configuration method provided by this application.

[0168] S501, UE1 determines a first message.

[0169] S502: UE1 sends a first message to the relay UE.

[0170] About S501 and S502 reference Figure 3The detailed description of S301 and S302 will not be repeated here.

[0171] S503: The relay UE sends a first response message to UE1.

[0172] It should be understood that the first response message is a response of the relay UE to the application of the RLC bearer configuration information related to the relay UE in the first message.

[0173] Optionally, the first response message is used to indicate that the RLC bearer configuration information parameters related to the relay UE in the first message are configured successfully. For example, the second response message may be an RRCReconfigurationCompleteSidelink message.

[0174] It should be noted that the relay UE will send the RRCReconfigurationCompleteSidelink message to UE1 only when the relay UE can complete the configuration parameters related only to sending in the second unicast connection RLC bearer configuration information, and when the relay UE can complete the configuration parameters related to both sending and receiving in the second unicast connection RLC bearer configuration information, and when the relay UE can complete the configuration parameters related to both sending and receiving in the first unicast connection RLC bearer configuration information.

[0175] Optionally, the first response message is used to indicate that all or part of the configuration of the RLC bearer configuration information parameters related to the relay UE in the first message has failed. For example, the second response message may be an RRCReconfigurationFailureSidelink message.

[0176] Optionally, when the first response message is an RRCReconfigurationFailureSidelink message, the response message may further specifically indicate the cause of the failure. For example, the response message further includes indication information, which may be used to indicate that the relay UE is unable to complete the RLC bearer configuration information of the first unicast connection (i.e., the relay UE fails to be configured as an Rx UE), and / or, to indicate that the relay UE is unable to complete the parameter configuration related only to transmission in the RLC bearer configuration information of the second unicast connection (i.e., the relay UE fails to be configured as a Tx UE), and / or, to indicate that the relay UE is unable to complete the parameter configuration related only to transmission in the RLC bearer configuration information of the second unicast connection (i.e., the relay UE fails to be configured as a Tx UE).

[0177] S504: The relay UE sends a fourth message to UE2.

[0178] The fourth message includes third information, where the third information is all or part of the second information.

[0179] Optionally, since UE2 only needs to receive parameters related to both sending and receiving in the RLC bearer configuration information of the second unicast connection, the relay UE can send parameters related to both sending and receiving in the RLC bearer configuration information of the second unicast connection to UE2, without sending parameters only related to sending in the RLC bearer configuration information of the second unicast connection.

[0180] Exemplarily, the relay UE may send the fourth message via an RRCReconfigurationSidelink message.

[0181] It should be noted that only when the first response message in S503 is used to indicate that the RLC bearer configuration information parameters related to the relay UE in the first message are configured successfully, will the relay UE be triggered to send the RLC bearer configuration information of the second unicast connection to UE2.

[0182] Optionally, the relay UE further sends QoS information corresponding to the RLC bearer configuration information of the second unicast connection to UE2.

[0183] S505: UE2 sends a second response message to the relay UE.

[0184] It should be understood that the second response message is a response of UE2 to the application of the RLC bearer configuration information of the second unicast connection included in the fourth message.

[0185] Optionally, the second response message is used to indicate that UE2 has successfully applied the RLC bearer configuration information of the second unicast connection. For example, the second response message may be an RRCReconfigurationCompleteSidelink message.

[0186] Optionally, the second response message is used to indicate that the configuration of the RLC bearer configuration information of the second unicast connection has failed, that is, UE2 as an Rx UE cannot apply (comply) the configuration of parameters related to both sending and receiving in the RLC bearer configuration information of the second unicast connection. For example, the second response message can be an RRCReconfigurationFailureSidelink message.

[0187] Optionally, when the second response message is an RRCReconfigurationFailureSidelink message, the relayUE triggers sending failure indication information to UE1, where the failure indication information is used to indicate a configuration failure of the RLC bearer configuration information of the second unicast connection. Optionally, after receiving the failure indication information sent by the relay UE, UE1 releases the corresponding RLC bearer of the first unicast connection or releases the first unicast connection, thereby ensuring that the communication conditions of the two unicast connections are consistent and reducing additional resource overhead.

[0188] S506 to S508 and Figure 3 The processes from S306 to S308 in the corresponding embodiment are the same, see Figure 3 The description of the corresponding steps in will not be repeated here.

[0189] The above process is the process of establishing an RLC bearer. Below, this application will describe the RLC bearer release process in detail.

[0190] Likewise, combined Figure 6 This application provides another method for bearer release. The basic logic of this method is the same as Figure 4 The corresponding embodiments are similar, except that the RLC bearer release interaction of the first unicast connection is completed before the RLC bearer release interaction of the second unicast connection, that is, the relay UE does not need to wait for the response message sent by UE2 to send a response message to UE1. The following application will describe the RLC bearer release process in detail.

[0191] See also Figure 6 , Figure 6 It is a schematic flow chart of another load release method provided in this application.

[0192] S601, UE1 determines the first message.

[0193] S602: UE1 sends a first message to the relay UE.

[0194] About S601 and S602 reference Figure 4 The detailed description of S401 and S402 will not be repeated here.

[0195] S603: The relay UE sends a first response message to UE1.

[0196] It should be understood that the first response message is a response of the relay UE to the RLC bearer release information of the first unicast connection and the RLC bearer release information of the second unicast connection.

[0197] Optionally, the first response message is used to indicate that the relay UE successfully releases the RLC bearer of the first unicast connection and the RLC bearer of the second unicast connection. For example, the second response message may be an RRCReconfigurationFailureSidelink message.

[0198] Optionally, the first response message is used to indicate that all or part of the release of the first unicast connection RLC bearer and the second unicast connection RLC bearer has failed. For example, the second response message may be an RRCReconfigurationFailureSidelink message.

[0199] S604: The relay UE sends a second message to UE2.

[0200] It should be noted that when the first message in S401 only contains the first information, the relay UE determines the second message based on the first information, and the second message includes the second unicast connection RLC bearer release information, that is, when the RLC bearer of the first unicast connection needs to be released, in order to ensure that the communication conditions of the two unicast connections are consistent, the RLC bearer of the second unicast connection also needs to be released.

[0201] Optionally, the second message may include a configuration index or LCID corresponding to the RLC bearer of the second unicast connection.

[0202] Optionally, the relay UE may send the second message through an RRCReconfigurationSidelink message.

[0203] It should be noted that only when the first response message in S603 is used to indicate that the relay UE successfully releases the RLC bearer of the first unicast connection and the RLC bearer of the second unicast connection, will the relay UE be triggered to send the RLC bearer release information of the second unicast connection to UE2.

[0204] S605: UE2 sends a second response message to the relay UE.

[0205] It should be understood that the second response message is a response of UE2 to the RLC bearer release information of the second unicast connection.

[0206] Optionally, the second response message is used to indicate that the RLC bearer of the second unicast connection is released successfully. For example, the second response message may be an RRCReconfigurationCompleteSidelink message.

[0207] Optionally, the second response message is used to indicate that the RLC bearer release of the second unicast connection has failed. For example, the second response message may be an RRCReconfigurationFailureSidelink message.

[0208] Optionally, when the second response message is an RRCReconfigurationFailureSidelink message, the relayUE triggers sending failure indication information to UE1, where the failure indication information is used to indicate that the RLC bearer release of the second unicast connection has failed. Optionally, after receiving the failure indication information sent by the relay UE, UE1 restores the corresponding RLC bearer of the first unicast connection or re-establishes the first unicast connection, thereby ensuring that the communication conditions of the two unicast connections are consistent and reducing additional resource overhead.

[0209] When the relay UE is in the RRC connected state, optionally, S606, S606 to S608 are executed. Figure 4 The processes from S406 to S408 in the corresponding embodiment are the same, for details, see Figure 4 The description of the corresponding steps in will not be repeated here.

[0210] See also Figure 7 , Figure 7 This is a schematic flow chart of another communication configuration method proposed in this application. The logic of this embodiment may differ from that of the previous embodiment. The RLC bearer configuration information for the second unicast connection may be obtained by the relay UE itself from the network. The specific steps of this method are described below.

[0211] S701: The relay UE sends a first message to UE2.

[0212] Optionally, when an RLC bearer of a second unicast connection needs to be established, the first message may include RLC bearer configuration information of the second unicast connection.

[0213] Optionally, when the RLC bearer of the second unicast connection needs to be released, the first message may include RLC bearer release information of the second unicast connection.

[0214] Exemplarily, the relay UE may send the first message via an RRCReconfigurationSidelink message. For details, please refer to the content of the previous embodiment.

[0215] S702: UE2 sends a first response message to the relay UE.

[0216] In this embodiment, the first response message is an RRCReconfigurationFailureSidelink message as an example for description, that is, UE2 cannot apply the RLC bearer configuration information of the second unicast connection or the RLC bearer release information of the second unicast connection sent by the relay UE.

[0217] S703, the relay UE sends failure indication information to UE1.

[0218] When the relay UE receives the RRCReconfigurationFailureSidelink message sent by UE2, it triggers the sending of failure indication information to UE1, and the indication information is used to indicate that UE2 cannot apply the RLC bearer configuration information of the second unicast connection or the RLC bearer release information of the second unicast connection in the first message. Exemplarily, the failure indication information may include QoS information corresponding to the RLC bearer of the second unicast connection, or the configuration index or LCID corresponding to the RLC bearer of the second unicast connection, or the configuration index or LCID corresponding to the first unicast connection RLC bearer associated with the RLC bearer of the second unicast connection.

[0219] Optionally, in S704, after receiving the failure indication information, UE1 releases the corresponding RLC bearer of the first unicast connection or releases the first unicast connection (when the relay UE sends the RLC bearer configuration information of the second unicast connection in S701), or restores the RLC bearer of the first unicast connection or reconstructs the first unicast connection (when the relay UE sends the RLC bearer release information of the second unicast connection in S701).

[0220] In the above technical solution, when UE2 responds to the relay UE that it cannot apply the second unicast connection RLC bearer configuration information or the second unicast connection RLC bearer release information sent by the relay UE, the relay UE sends a failure indication message to UE1, so that UE1 can be informed of the failure indication message, thereby allowing UE1 to further take corresponding actions to ensure that the communication conditions of the two unicast connections are consistent and reduce additional resource overhead.

[0221] The above describes in detail the communication configuration method provided by the present application. The following introduces the communication device provided by the present application.

[0222] See also Figure 8 , Figure 8 This is a schematic block diagram of the communication device 1000 provided in this application. Figure 8 , the communication device 1000 includes a processing unit 1100 and a sending unit 1200.

[0223] The processing unit 1100 is used to determine a first message, where the first message includes first information and second information, where the first information includes radio link control RLC bearer configuration information of a first sidelink, and the second information includes RLC bearer configuration information of a second sidelink, where the first sidelink is a sidelink between a first terminal device and a third terminal device configured with the communication device, and the second sidelink is a sidelink between the third terminal device and the second terminal device; the sending unit 1200 is used to send the first message to the third terminal device.

[0224] Optionally, in one embodiment, the first terminal device and the second terminal device communicate through the third terminal device.

[0225] Optionally, in another embodiment, the first message further includes first quality of service QoS information, and the first QoS information is QoS information corresponding to the second information.

[0226] Optionally, the communication apparatus 1000 may further include a receiving unit 1300 configured to execute the receiving action performed by the first terminal device.

[0227] Optionally, in another embodiment, the receiving unit 1300 is used to receive a second message sent by the first network device, wherein the second message includes first information and second information, or the second message includes the first information; the first terminal device determines the first message based on the second message.

[0228] Optionally, in another embodiment, before the receiving unit 1300 receives the second message sent by the first network device, the sending unit 1200 is also used to send second QoS information to the first network device, wherein the second QoS information is QoS information between the first terminal device and the second terminal device, and the second message is determined by the first network device based on the second QoS information.

[0229] Optionally, in another embodiment, the processing unit 1100 is used to obtain the first information from a third message, wherein the third message includes a system information block SIB system broadcast message and / or pre-configuration information; the processing unit 1100 is also used to determine the second information based on the first information.

[0230] Optionally, in another embodiment, the receiving unit 1300 is further used to receive a first response message sent by the third terminal device, where the first response message is used to indicate whether part or all of the configuration of the first information and the second information is successful or failed.

[0231] Optionally, in another embodiment, part of the first information and the second information is successfully configured, including: the RLC bearer configuration information of the side link related to the third terminal device in the first information and the second information is successfully configured.

[0232] Optionally, in another embodiment, when the first response message is used to indicate that the configuration of the first information and the second information has failed, the first response message is also specifically used to indicate that part or all of the configuration of the RLC bearer configuration information of the side link related to the second terminal device and / or the third terminal device in the first information and the second information has failed.

[0233] In other embodiments, each unit of the communication device 1000 is further configured to perform the following steps and / or operations.

[0234] The processing unit 1100 is used to determine a first message, where the first message includes first information and / or second information, where the first information includes radio link control RLC bearer release information of a first sidelink, and the second information includes RLC bearer release information of a second sidelink, where the first sidelink is a sidelink between a first terminal device and a third terminal device configured with the communication device, and the second sidelink is a sidelink between the third terminal device and the second terminal device; the sending unit 1200 is used to send the first message to the third terminal device.

[0235] Optionally, in one embodiment, the first terminal device and the second terminal device communicate through the third terminal device.

[0236] Optionally, in another embodiment, the receiving unit 1300 is used to receive a first response message sent by the third terminal device, and the first response message is used to indicate the success or failure of releasing part or all of the RLC bearer of the first side link and the radio link control RLC bearer of the second side link.

[0237] Optionally, in another embodiment, part of the RLC bearer of the first side link and the RLC bearer of the second side link is released successfully, including: the RLC bearer of the side link related to the third terminal device in the RLC bearer of the first side link and the RLC bearer of the second side link is released successfully.

[0238] Optionally, in another embodiment, when the first response message is used to indicate the failure to release the RLC bearer of the first side link and the RLC bearer of the second side link, the first response message is also used to specifically indicate the failure to release part or all of the RLC bearers of the side link related to the second terminal device and / or the third terminal device in the first information and the second information.

[0239] Optionally, the sending unit 1200 and the receiving unit 1300 may also be integrated into a transceiver unit, which has both receiving and sending functions, which is not limited here.

[0240] In one implementation, the communication device 1000 may be the first terminal device in the method embodiment. In this implementation, the transmitting unit 1200 may be a transmitter, and the receiving unit 1300 may be a receiver. The receiver and transmitter may also be integrated into a transceiver. The processing unit 1100 may be a processing device.

[0241] In another implementation, the communication device 1000 may be a chip or integrated circuit installed in the first terminal device. In this implementation, the transmitting unit 1200 and the receiving unit 1300 may be communication interfaces or interface circuits. For example, the transmitting unit 1200 may be an output interface or output circuit, the receiving unit 1300 may be an input interface or input circuit, and the processing unit 1100 may be a processing device.

[0242] The functions of the processing device can be implemented by hardware or by executing corresponding software implementations through hardware. For example, the processing device may include a memory and a processor, wherein the memory is used to store computer programs, and the processor reads and executes the computer programs stored in the memory, so that the communication device 1000 performs the operations and / or processes performed by the first terminal device in each method embodiment. Alternatively, the processing device may include only a processor, and the memory for storing the computer program is located outside the processing device. The processor is connected to the memory via circuits / wires to read and execute the computer program stored in the memory. For another example, the processing device may be a chip or an integrated circuit.

[0243] See also Figure 9 , Figure 9 This is a schematic block diagram of the communication device 2000 provided in this application. Figure 9 , the communication device 2000 includes a receiving unit 2100 and a sending unit 2200.

[0244] The receiving unit 2100 is used to receive a first message sent by a first terminal device, where the first message includes first information and second information, where the first information includes radio link control RLC bearer configuration information of a first sidelink, and the second information includes RLC bearer configuration information of a second sidelink, where the first sidelink is a sidelink between the first terminal device and a third terminal device configured with the communication device, and the second sidelink is a sidelink between the third terminal device and the second terminal device; the sending unit 2200 is used to send a fourth message to the second terminal device, where the fourth message includes third information, and the third information is all or part of the second information.

[0245] Optionally, in one embodiment, the first terminal device and the second terminal device communicate through the third terminal device.

[0246] Optionally, in another embodiment, the receiving unit 2100 is further used to receive first quality of service QoS information sent by the first terminal device, where the first QoS information is QoS information corresponding to the second information; the sending unit 2200 is further used to send the first QoS information to the second terminal device.

[0247] Optionally, in another embodiment, the sending unit 2200 is further used to send a first response message to the first terminal device, where the first response message is used to indicate whether part or all of the configuration of the first information and the second information is successful or failed.

[0248] Optionally, in another embodiment, part of the first information and the second information is successfully configured, including: the RLC bearer configuration information of the side link related to the third terminal device in the first information and the second information is successfully configured.

[0249] Optionally, in another embodiment, when the first response message is used to indicate that the configuration of the first information and the second information has failed, the first response message is also used to specifically indicate that part or all of the configuration of the RLC bearer configuration information of the side link related to the second terminal device and / or the third terminal device in the first information and the second information has failed.

[0250] Optionally, in another embodiment, the receiving unit 2100 is further used to receive a second response message sent by the second terminal device, where the second response message is used to indicate whether the third information configuration is successful or failed.

[0251] Optionally, the communication apparatus 2000 may further include a processing unit 2300 configured to execute processing or operations performed internally by the third terminal device.

[0252] In other embodiments, each unit of the communication device 1000 is further configured to perform the following steps and / or operations.

[0253] The receiving unit 2100 is used to receive a first message sent by a first terminal device, where the first message includes first information and / or second information, where the first information includes radio link control RLC bearer release information of a first sidelink, and the second information includes RLC bearer release information of a second sidelink, where the first sidelink is a sidelink between the first terminal device and a third terminal device configured with the communication device, and the second sidelink is a sidelink between the third terminal device and the second terminal device; the processing unit 2300 is used to determine a second message based on the first message, where the second message includes the second information; the sending unit 2200 is used to send a second message to the second terminal device.

[0254] Optionally, in one embodiment, the first terminal device and the second terminal device communicate through the third terminal device.

[0255] Optionally, in another embodiment, the sending unit 2200 is further used to send a first response message to the first terminal device, and the first response message is used to indicate the success or failure of releasing part or all of the RLC bearer of the first side link and the RLC bearer of the second side link.

[0256] Optionally, in another embodiment, part of the RLC bearer of the first side link and the RLC bearer of the second side link is released successfully, including: the RLC bearer of the side link related to the third terminal device in the RLC bearer of the first side link and the RLC bearer of the second side link is released successfully.

[0257] Optionally, in another embodiment, when the first response message is used to indicate the failure to release the RLC bearer of the first side link and the RLC bearer of the second side link, the first response message is also used to specifically indicate the failure to release part or all of the RLC bearers of the side link related to the second terminal device and / or the third terminal device in the first information and the second information.

[0258] Optionally, in another embodiment, the receiving unit 2100 is further used to receive a second response message sent by the second terminal device, where the second response message is used to indicate whether the RLC bearer release of the second side link is successful or failed.

[0259] Optionally, the receiving unit 2100 and the sending unit 2200 may also be integrated into a transceiver unit, which has both receiving and sending functions, which is not limited here.

[0260] In one implementation, communication device 2000 may be the third terminal device in the method embodiment. In this implementation, transmitting unit 2200 may be a transmitter, and receiving unit 2100 may be a receiver. The receiver and transmitter may also be integrated into a transceiver. Processing unit 2300 may be a processing device.

[0261] In another implementation, the communication device 2000 may be a chip or integrated circuit installed in a third terminal device. In this implementation, the receiving unit 2100 and the sending unit 2200 may be communication interfaces or interface circuits. For example, the sending unit 2200 may be an output interface or output circuit, the receiving unit 2100 may be an input interface or input circuit, and the processing unit 2300 may be a processing device.

[0262] The functions of the processing device can be implemented by hardware or by executing corresponding software implementations through hardware. For example, the processing device may include a memory and a processor, wherein the memory is used to store computer programs, and the processor reads and executes the computer programs stored in the memory, so that the communication device 2000 performs the operations and / or processes performed by the third terminal device in each method embodiment. Alternatively, the processing device may include only a processor, and the memory for storing the computer program is located outside the processing device. The processor is connected to the memory via circuits / wires to read and execute the computer program stored in the memory. For another example, the processing device may be a chip or an integrated circuit.

[0263] See also Figure 10 , Figure 10 This is a schematic structural diagram of the communication device 10 provided in this application. Figure 10 The communication device 10 includes one or more processors 11, one or more memories 12, and one or more communication interfaces 13. The processor 11 is used to control the communication interface 13 to send and receive signals, and the memory 12 is used to store a computer program. The processor 11 is used to call and execute the computer program from the memory 12 to execute the process and / or operation performed by the first terminal device in each method embodiment of the present application.

[0264] For example, the processor 11 may have Figure 8 The functions of the processing unit 1100 shown in FIG, the communication interface 13 may have Figure 8 Specifically, the processor 11 may be used to execute the processing or operation performed by the first terminal device in the various method embodiments of the present application, and the communication interface 13 may be used to execute the sending and / or receiving actions performed by the first terminal device in the various method embodiments of the present application.

[0265] In one implementation, the communication device 10 may be the first terminal device in the method embodiment. In this implementation, the communication interface 13 may be a transceiver. The transceiver may include a receiver and a transmitter.

[0266] Optionally, the processor 11 may be a baseband device, and the communication interface 13 may be a radio frequency device.

[0267] In another implementation, the communication device 10 may be a chip installed in the first terminal device. In this implementation, the communication interface 13 may be an interface circuit or an input / output interface.

[0268] See also Figure 11 , Figure 11 2 is a schematic structural diagram of the communication device 20 provided in this application. Figure 11 The communication device 20 includes one or more processors 21, one or more memories 22, and one or more communication interfaces 23. The processor 21 is used to control the communication interface 23 to send and receive signals, and the memory 22 is used to store a computer program. The processor 21 is used to call and execute the computer program from the memory 22 to execute the process and / or operation performed by the third terminal device in each method embodiment of the present application.

[0269] For example, the processor 21 may have Figure 9 The functions of the processing unit 2300 shown in FIG, the communication interface 23 may have Figure 9 Specifically, the processor 21 can be used to execute the processing or operation performed by the third terminal device in the various method embodiments of the present application, and the communication interface 23 is used to execute the sending and / or receiving actions performed by the third terminal device in the various method embodiments of the present application, which will not be repeated here.

[0270] In one implementation, the communication device 20 may be the third terminal device in the method embodiment. In this implementation, the communication interface 13 may be a transceiver. The transceiver may include a receiver and a transmitter.

[0271] Optionally, the processor 11 may be a baseband device, and the communication interface 13 may be a radio frequency device.

[0272] In another implementation, the communication device 20 may be a chip installed in the third terminal device. In this implementation, the communication interface 13 may be an interface circuit or an input / output interface.

[0273] Optionally, the processor and memory in the above-mentioned device embodiments may be physically independent units, or the memory may be integrated with the processor, which is not limited in this document.

[0274] In addition, the present application also provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are run on a computer, the operations and / or processes performed by the first terminal device in each method embodiment of the present application are executed.

[0275] The present application also provides a computer-readable storage medium, in which computer instructions are stored. When the computer instructions are executed on a computer, the operations and / or processes performed by the third terminal device in each method embodiment of the present application are executed.

[0276] The present application also provides a computer program product, which includes computer program code or instructions. When the computer program code or instructions are run on a computer, the operations and / or processes performed by the first terminal device in each method embodiment of the present application are executed.

[0277] The present application also provides a computer program product, which includes computer program code or instructions. When the computer program code or instructions are run on a computer, the operations and / or processes performed by the third terminal device in the various method embodiments of the present application are executed.

[0278] In addition, the present application further provides a chip, the chip including a processor. A memory for storing a computer program is provided independently of the chip, and the processor is configured to execute the computer program stored in the memory, so that the operation and / or processing performed by the first terminal device in any method embodiment is performed.

[0279] Furthermore, the chip may further include a communication interface. The communication interface may be an input / output interface, or an interface circuit, etc. Furthermore, the chip may further include the memory.

[0280] The present application also provides a chip, the chip including a processor. A memory for storing a computer program is provided independently of the chip, and the processor is configured to execute the computer program stored in the memory so that the operation and / or processing performed by the third terminal device in any method embodiment is performed.

[0281] Furthermore, the chip may further include a communication interface. The communication interface may be an input / output interface, or an interface circuit, etc. Furthermore, the chip may further include the memory.

[0282] In addition, the present application also provides a communication system, including the terminal device and network device in the embodiments of the present application.

[0283] The processor in the embodiment of the present application can be an integrated circuit chip with the ability to process signals. During implementation, each step of the above method embodiment can be completed by the hardware integrated logic circuit in the processor or by instructions in the form of software. The processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as being executed by a hardware coding processor, or can be executed by a combination of hardware and software modules in the coding processor. The software module can be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0284] The memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus RAM (DRRAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0285] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0286] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0287] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0288] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0289] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0290] In this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. A, B, and C can all be singular or plural, without limitation.

[0291] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

[0292] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0293] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication configuration method, applied to a first terminal device, characterized in that: include: Determine a first message, where the first message includes first information and second information, the first information includes radio link control (RLC) bearer configuration information of a first sidelink, the second information includes RLC bearer configuration information of a second sidelink, the first sidelink is a sidelink between the first terminal device and a third terminal device, and the second sidelink is a sidelink between the third terminal device and the second terminal device; The determining the first message includes: receiving a second message sent by the first network device, wherein the second message includes the first information and the second information, or the second message includes the first information; The first message is determined according to one or more of the following: the second message, first quality of service QoS information, and second QoS information; the first QoS information is QoS information corresponding to the second information, and the second QoS information is QoS information between the first terminal device and the second terminal device; Sending the first message to the third terminal device; receiving a first response message from the third terminal device, The first response message is used to indicate that the RLC bearer configuration information of the first sidelink and the RLC bearer configuration information of the second sidelink are both configured successfully. or, The first response message is used to indicate that all or part of the configuration of the first sidelink RLC bearer configuration information and the second sidelink RLC bearer configuration information has failed.

2. The method according to claim 1, characterized in that The first terminal device and the second terminal device communicate through the third terminal device.

3. The method according to claim 1 or 2, characterized in that The first message also includes the first quality of service QoS information.

4. The method according to claim 1, wherein Before receiving the second message sent by the first network device, the method further includes: The second QoS information is sent to the first network device, wherein the second message is determined by the first network device according to the second QoS information.

5. The method according to claim 1, wherein The determining the first message includes: Acquire the first information from a third message, wherein the third message includes a system information block (SIB) system broadcast message and / or pre-configuration information; The second information is determined according to the first information.

6. The method according to claim 1 or 5, characterized in that The RLC bearer configuration information of the first sidelink and the RLC bearer configuration information of the second sidelink are both configured successfully, including: The RLC bearer configuration information of the first side link and the RLC bearer configuration information of the second side link related to the third terminal device are configured successfully.

7. The method according to claim 1, characterized in that The configuration of the first side link RLC bearer configuration information and the second side link RLC bearer configuration information fails in whole or in part, including: the configuration of the RLC bearer configuration information of the side link related to the second terminal device and / or the third terminal device in the first side link RLC bearer configuration information and the second side link RLC bearer configuration information fails in part or in whole.

8. A communication configuration method, applied to a third terminal device, characterized in that: include: Receiving a first message sent by a first terminal device, where the first message includes first information and second information, the first information includes radio link control (RLC) bearer configuration information of a first sidelink, the second information includes RLC bearer configuration information of a second sidelink, the first sidelink is a sidelink between the first terminal device and the third terminal device, and the second sidelink is a sidelink between the third terminal device and the second terminal device; The first message is determined according to one or more of the following: a second message, first quality of service QoS information, and second QoS information; the first QoS information is QoS information corresponding to the second information, and the second QoS information is QoS information between the first terminal device and the second terminal device; the second message includes the first information and the second information, or the second message includes the first information; Sending a fourth message to the second terminal device, where the fourth message includes third information, and the third information is all or part of the second information; Sending a first response message to the first terminal device, where the first response message is used to indicate that the RLC bearer configuration information of the first sidelink and the RLC bearer configuration information of the second sidelink are both configured successfully, or, The first response message is used to indicate that all or part of the first sidelink RLC bearer configuration information and the second sidelink RLC bearer configuration information have failed.

9. The method according to claim 8, characterized in that The first terminal device and the second terminal device communicate through the third terminal device.

10. The method according to claim 8 or 9, characterized in that The first message further includes first quality of service (QoS) information, where the first QoS information is QoS information corresponding to the second information. The method further includes: Send the first QoS information to the second terminal device.

11. The method according to claim 9, characterized in that The RLC bearer configuration information of the first sidelink and the RLC bearer configuration information of the second sidelink are both configured successfully, including: The RLC bearer configuration information of the first side link and the RLC bearer configuration information of the second side link related to the third terminal device are configured successfully.

12. The method according to claim 9 or 11, characterized in that The first side link RLC bearer configuration information and the second side link RLC bearer configuration information all or part of which fail, including: partial or complete configuration failure of the side link RLC bearer configuration information related to the second terminal device and / or the third terminal device in the first side link RLC bearer configuration information and the second side link RLC bearer configuration information.

13. The method according to claim 9, characterized in that The method further comprises: Receive a second response message sent by the second terminal device, where the second response message is used to indicate whether the third information configuration is successful or failed.

14. A bearer release method, applied to a first terminal device, characterized in that: include: Determine a first message, where the first message includes first information and / or second information, the first information includes radio link control (RLC) bearer release information of a first sidelink, the second information includes RLC bearer release information of a second sidelink, the first sidelink is a sidelink between the first terminal device and a third terminal device, and the second sidelink is a sidelink between the third terminal device and the second terminal device; The determining the first message includes: receiving a second message sent by the first network device, wherein the second message includes the first information and the second information, or the second message includes the first information; The first message is determined according to one or more of the following: the second message, first quality of service QoS information, and second QoS information; the first QoS information is QoS information corresponding to the second information, and the second QoS information is QoS information between the first terminal device and the second terminal device; Sending the first message to the third terminal device; receiving a first response message from the third terminal device, The first response message is used to indicate that both the RLC bearer of the first sidelink and the RLC bearer of the second sidelink are released successfully. or, The first response message is used to indicate that all or part of the release of the first sidelink RLC bearer and the second sidelink RLC bearer has failed.

15. The method according to claim 14, characterized in that The first terminal device and the second terminal device communicate through the third terminal device.

16. The method according to claim 14 or 15, characterized in that The RLC bearer of the first sidelink and the RLC bearer of the second sidelink are both released successfully, including: The RLC bearer of the side link related to the third terminal device in the RLC bearer of the first side link and the RLC bearer of the second side link is released successfully.

17. The method according to claim 14, characterized in that The complete or partial release failure of the first sidelink RLC bearer and the second sidelink RLC bearer includes: the complete or partial release failure of the sidelink RLC bearer related to the second terminal device and / or the third terminal device in the first sidelink RLC bearer and the second sidelink RLC bearer.

18. A bearer release method, applied to a third terminal device, characterized in that: include: Receiving a first message sent by a first terminal device, where the first message includes first information and / or second information, the first information includes radio link control (RLC) bearer release information of a first sidelink, the second information includes RLC bearer release information of a second sidelink, the first sidelink is a sidelink between the first terminal device and the third terminal device, and the second sidelink is a sidelink between the third terminal device and the second terminal device; The first message is determined according to one or more of the following: a second message, first quality of service QoS information, and second QoS information; the first QoS information is QoS information corresponding to the second information, and the second QoS information is QoS information between the first terminal device and the second terminal device; the second message includes the first information and the second information, or the second message includes the first information; determining a second message according to the first message, where the second message includes the second information; Sending a second message to the second terminal device; sending a first response message to the first terminal device, The first response message is used to indicate that both the RLC bearer of the first sidelink and the RLC bearer of the second sidelink are released successfully. or, The first response message is used to indicate that all or part of the release of the first sidelink RLC bearer and the second sidelink RLC bearer has failed.

19. The method according to claim 18, characterized in that The first terminal device and the second terminal device communicate through the third terminal device.

20. The method according to claim 18 or 19, characterized in that The RLC bearer of the first sidelink and the RLC bearer of the second sidelink are both released successfully, including: The RLC bearer of the side link related to the third terminal device in the RLC bearer of the first side link and the RLC bearer of the second side link is released successfully.

21. The method according to claim 18, wherein The complete or partial release failure of the first sidelink RLC bearer and the second sidelink RLC bearer includes: the complete or partial release failure of the sidelink RLC bearer related to the second terminal device and / or the third terminal device in the first sidelink RLC bearer and the second sidelink RLC bearer.

22. The method according to claim 18, wherein The method further comprises: Receive a second response message sent by the second terminal device, where the second response message is used to indicate whether the RLC bearer release of the second side link is successful or failed.

23. A communication device, applied to a first terminal device, characterized in that: include: a processing unit, configured to determine a first message, where the first message includes first information and second information, the first information including radio link control (RLC) bearer configuration information of a first sidelink, the second information including RLC bearer configuration information of a second sidelink, the first sidelink being a sidelink between the first terminal device and a third terminal device, and the second sidelink being a sidelink between the third terminal device and the second terminal device; The apparatus further includes a receiving unit, and the processing unit determines the first message, including: The receiving unit is configured to receive a second message sent by the first network device, wherein the second message includes the first information and the second information, or the second message includes the first information; The first message is determined by the first terminal device according to one or more of the following: the second message, first quality of service QoS information, and second QoS information; the first QoS information is QoS information corresponding to the second information, and the second QoS information is QoS information between the first terminal device and the second terminal device; a sending unit is used to send the first message to the third terminal device; a receiving unit, configured to receive a first response message from the third terminal device, The first response message is used to indicate that the RLC bearer configuration information of the first sidelink and the RLC bearer configuration information of the second sidelink are both configured successfully. or, The first response message is used to indicate that all or part of the configuration of the first sidelink RLC bearer configuration information and the second sidelink RLC bearer configuration information has failed.

24. The device according to claim 23, characterized in that The first terminal device and the second terminal device communicate through the third terminal device.

25. The device according to claim 23 or 24, characterized in that The first message also includes first quality of service QoS information.

26. The device according to claim 23, characterized in that Before the receiving unit receives the second message sent by the first network device, the sending unit is also used to send second QoS information to the first network device, wherein the second QoS information is QoS information between the first terminal device and the second terminal device, and the second message is determined by the first network device based on the second QoS information.

27. The device according to claim 23, characterized in that The processing unit determines the first message, including: The processing unit is configured to obtain the first information from a third message, wherein the third message includes a system information block (SIB) system broadcast message and / or pre-configuration information; The processing unit is configured to determine the second information based on the first information.

28. The device according to claim 23 or 27, characterized in that The RLC bearer configuration information of the first sidelink and the RLC bearer configuration information of the second sidelink are both configured successfully, including: The RLC bearer configuration information of the first side link and the RLC bearer configuration information of the second side link related to the third terminal device are configured successfully.

29. The device according to claim 23, characterized in that The first side link RLC bearer configuration information and the second side link RLC bearer configuration information all or part of the configuration fails, including: the first side link RLC bearer configuration information and the second side link RLC bearer configuration information, including: the first side link RLC bearer configuration information and the second side link RLC bearer configuration information related to the second terminal device and / or the third terminal device in the RLC bearer configuration information of the second side link part or all of the configuration fails.

30. A communication device, applied to a third terminal device, characterized in that: include: a receiving unit, configured to receive a first message sent by a first terminal device, where the first message includes first information and second information, the first information includes radio link control (RLC) bearer configuration information of a first sidelink, the second information includes RLC bearer configuration information of a second sidelink, the first sidelink is a sidelink between the first terminal device and the third terminal device, and the second sidelink is a sidelink between the third terminal device and the second terminal device; The first message is determined according to one or more of the following: a second message, first quality of service QoS information, and second QoS information; the first QoS information is QoS information corresponding to the second information, and the second QoS information is QoS information between the first terminal device and the second terminal device; the second message includes the first information and the second information, or the second message includes the first information; a sending unit, configured to send a fourth message to the second terminal device, where the fourth message includes third information, and the third information is all or part of the second information; The sending unit is further configured to send a first response message to the first terminal device, where the first response message is used to indicate that the RLC bearer configuration information of the first sidelink and the RLC bearer configuration information of the second sidelink are both configured successfully. or, The first response message is used to indicate that all or part of the first sidelink RLC bearer configuration information and the second sidelink RLC bearer configuration information have failed.

31. The device according to claim 30, characterized in that The first terminal device and the second terminal device communicate through the third terminal device.

32. The device according to claim 30 or 31, characterized in that The first message also includes first quality of service QoS information, where the first QoS information is QoS information corresponding to the second information. The sending unit is further used to send the first QoS information to the second terminal device.

33. The device according to claim 30, characterized in that The RLC bearer configuration information of the first sidelink and the RLC bearer configuration information of the second sidelink are both configured successfully, including: The RLC bearer configuration information of the first side link and the RLC bearer configuration information of the second side link related to the third terminal device are configured successfully.

34. The device according to claim 30 or 33, characterized in that The first side link RLC bearer configuration information and the second side link RLC bearer configuration information all or part of which fail, including: partial or complete configuration failure of the side link RLC bearer configuration information related to the second terminal device and / or the third terminal device in the first side link RLC bearer configuration information and the second side link RLC bearer configuration information.

35. The device according to claim 30, characterized in that The receiving unit is further used to receive a second response message sent by the second terminal device, where the second response message is used to indicate whether the third information configuration is successful or failed.

36. A communication device, applied to a first terminal device, characterized in that: include: a processing unit, configured to determine a first message, where the first message includes first information and / or second information, the first information includes radio link control (RLC) bearer release information of a first sidelink, the second information includes RLC bearer release information of a second sidelink, the first sidelink is a sidelink between the first terminal device and a third terminal device, and the second sidelink is a sidelink between the third terminal device and the second terminal device; The determining the first message includes: receiving a second message sent by the first network device, wherein the second message includes the first information and the second information, or the second message includes the first information; The first message is determined according to one or more of the following: the second message, first quality of service QoS information, and second QoS information; the first QoS information is QoS information corresponding to the second information, and the second QoS information is QoS information between the first terminal device and the second terminal device; a sending unit, configured to send the first message to the third terminal device; a receiving unit, configured to receive a first response message from the third terminal device, The first response message is used to indicate that both the RLC bearer of the first sidelink and the RLC bearer of the second sidelink are released successfully. or, The first response message is used to indicate that all or part of the release of the first sidelink RLC bearer and the second sidelink RLC bearer has failed.

37. The device according to claim 36, characterized in that The first terminal device and the second terminal device communicate through the third terminal device.

38. The device according to claim 36 or 37, characterized in that The RLC bearer of the first sidelink and the RLC bearer of the second sidelink are both released successfully, including: The RLC bearer of the side link related to the third terminal device in the RLC bearer of the first side link and the RLC bearer of the second side link is released successfully.

39. The device according to claim 36, characterized in that When the first side link RLC bearer and the second side link RLC bearer fail to be released in whole or in part, including: the partial or complete release of the side link RLC bearer related to the second terminal device and / or the third terminal device in the first side link RLC bearer and the second side link RLC bearer fails.

40. A communication device, applied to a third terminal device, characterized in that: include: a receiving unit, configured to receive a first message sent by a first terminal device, where the first message includes first information and / or second information, the first information includes radio link control (RLC) bearer release information of a first sidelink, the second information includes RLC bearer release information of a second sidelink, the first sidelink is a sidelink between the first terminal device and the third terminal device, and the second sidelink is a sidelink between the third terminal device and the second terminal device; The first message is determined according to one or more of the following: a second message, first quality of service QoS information, and second QoS information; the first QoS information is QoS information corresponding to the second information, and the second QoS information is QoS information between the first terminal device and the second terminal device; the second message includes the first information and the second information, or the second message includes the first information; a processing unit, configured to determine a second message based on the first message, where the second message includes the second information; A sending unit, configured to send a second message to the second terminal device; The sending unit is further configured to send a first response message to the first terminal device. The first response message is used to indicate that both the RLC bearer of the first sidelink and the RLC bearer of the second sidelink are released successfully. or, The first response message is used to indicate that all or part of the release of the first sidelink RLC bearer and the second sidelink RLC bearer has failed.

41. The device according to claim 40, characterized in that The first terminal device and the second terminal device communicate through the third terminal device.

42. The device according to claim 40 or 41, characterized in that The RLC bearer of the first sidelink and the RLC bearer of the second sidelink are both released successfully, including: The RLC bearer of the side link related to the third terminal device in the RLC bearer of the first side link and the RLC bearer of the second side link is released successfully.

43. The device according to claim 40, characterized in that The complete or partial release failure of the first sidelink RLC bearer and the second sidelink RLC bearer includes: the complete or partial release failure of the sidelink RLC bearer related to the second terminal device and / or the third terminal device in the first sidelink RLC bearer and the second sidelink RLC bearer.

44. The device according to claim 40, characterized in that The receiving unit is further used to receive a second response message sent by the second terminal device, and the second response message is used to indicate the success or failure of the RLC bearer release of the second side link.

45. A communication device, characterized in that The device comprises at least one processor coupled to at least one memory, wherein the at least one processor is configured to execute a computer program or instruction stored in the at least one memory, so that the communication device performs the method according to any one of claims 1 to 7, or the communication device performs the method according to any one of claims 14 to 17.

46. ​​A communication device, characterized in that The device comprises at least one processor coupled to at least one memory, wherein the at least one processor is configured to execute a computer program or instruction stored in the at least one memory, so that the communication device performs the method according to any one of claims 8 to 13, or the communication device performs the method according to any one of claims 18 to 22.

47. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions. When the computer instructions are executed on a computer, the method according to any one of claims 1 to 7 is executed, or the method according to any one of claims 14 to 17 is executed.

48. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions. When the computer instructions are executed on a computer, the method according to any one of claims 8 to 13 is executed, or the method according to any one of claims 18 to 22 is executed.

49. A computer program product, characterized in that The computer program product includes computer program code. When the computer program code is run on a computer, the method according to any one of claims 1 to 7 is executed, or the method according to any one of claims 14 to 17 is executed.

50. A computer program product, characterized in that The computer program product includes computer program code. When the computer program code is run on a computer, the method according to any one of claims 8 to 13 is executed, or the method according to any one of claims 18 to 22 is executed.

51. A communication system, characterized in that include: The first terminal device of any one of claims 23 to 29, 36 to 39 and the third terminal device of any one of claims 30 to 35, 40 to 44.

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