WO2020143690A1

WO2020143690A1 - Radio bearer configuration method, terminal and communication device

Info

Publication number: WO2020143690A1
Application number: PCT/CN2020/070999
Authority: WO
Inventors: 徐海博; 肖潇; 王君; 王键
Original assignee: 华为技术有限公司
Priority date: 2019-01-08
Filing date: 2020-01-08
Publication date: 2020-07-16
Also published as: CN111417215A; CN111417215B

Abstract

Provided by the present application are a radio bearer configuration method, a terminal and a communication device. The present method comprises: a first terminal device sends a first message to a second terminal device, the first message being used to instruct the second terminal device to configure or reconfigure a first side link radio bearer between the second terminal device and the first terminal device; and the first terminal device receives a second message sent by the second terminal device, the second message being used to indicate that the second terminal device has completed configuring or reconfiguring the first sidelink radio bearer, or the second message comprising configuration information of the first sidelink radio bearer. The described technical solution may ensure that radio bearer configuration used by a receiving end terminal device when receiving data is consistent with a radio bearer configuration used by a transmitting end terminal device to transmit data, so that the receiving end terminal device may correctly process received data.

Description

Wireless bearer configuration method, terminal and communication device

Technical field

Embodiments of the present application relate to the field of communications, and more specifically, to a radio bearer configuration method, terminal, and communication device.

Background technique

In a wireless network, a base station and a terminal device can communicate through an uplink and a downlink. Sidelinks can be used for communication between terminals.

In the long term evolution (LET) vehicle-to-outside information exchange (V2X) system, only broadcast services are supported. The radio bearers of the sidelink are established and configured by the originating UE and the receiving UE respectively, and the originating UE and the receiving UE do not need to coordinate the configuration of the wireless bearers.

In the fifth generation mobile communication technology (fifth generation, 5G) V2X system, when terminals and terminal devices communicate through Sidelink, in order to meet the quality of service (QoS) requirements of each V2X service, multiple wireless bearer configurations are required. In this case, if the sending UE and the receiving UE independently establish and configure the wireless bearer, the receiving bearer UE will use the wireless bearer configuration when receiving data and the sending UE will use the wireless bearer configuration when sending the data. The configuration does not match or is inconsistent, which may cause the receiving UE to process the received data incorrectly, or cannot guarantee the QoS requirements of the V2X service.

Summary of the invention

The present application provides a wireless bearer configuration method, terminal and communication device, which can ensure that the wireless bearer configuration adopted by the receiving terminal device when receiving data is consistent with the wireless bearer configuration used by the sending terminal device to send data, so that the receiving end The terminal device can correctly process the received data.

In a first aspect, a method for configuring a wireless bearer is provided, including: a first terminal device sends a first message to a second terminal device, where the first message is used to indicate the configuration or reconfiguration of the second terminal device A first side link wireless bearer between the first terminal devices; the first terminal device receives a second message sent by the second terminal device, and the second message is used to indicate that the second terminal device completes The configuration or reconfiguration of the first side link radio bearer, or the second message includes configuration information of the first side link radio bearer.

The above technical solution can ensure that the wireless bearer configuration adopted by the receiving terminal device when receiving data is consistent with the wireless bearer configuration used by the transmitting terminal device to send data, so that the receiving terminal device can correctly process the received data.

With reference to the first aspect, in a possible implementation manner, the first message includes configuration information of the first side link radio bearer, or the first message includes the first side link radio Bear the corresponding QoS information.

With reference to the first aspect, in a possible implementation manner, the first message further includes source information and/or destination information associated with the first sidelink radio bearer.

With reference to the first aspect, in a possible implementation manner, the first message includes configuration information of the first side link radio bearer, and the configuration information of the first side link radio bearer includes the following information At least one of: an identifier of the first sidelink radio bearer; an identifier of the first logical channel corresponding to the first sidelink radio bearer; configuration information of a packet data aggregation protocol PDCP entity, where , The PDCP entity is the PDCP entity of the first side link radio bearer, or the PDCP entity is the PDCP entity corresponding to the first logical channel; the configuration information of the radio link control RLC bearer, where , The RLC bearer is the RLC bearer corresponding to the first side link radio bearer, or the RLC bearer is the RLC bearer corresponding to the first logical channel.

With reference to the first aspect, in a possible implementation manner, the configuration information of the PDCP entity includes first type PDCP information and second type PDCP information; and the configuration information carried by the RLC includes first type RLC information and second RLC-like information; wherein, the first type of PDCP information is PDCP information for both the sending side and the receiving side; the second type of PDCP information is PDCP information for the receiving side; and the first type of RLC information is It is also used for RLC information on the sending side and the receiving side; the second type of RLC information is RLC information for the receiving side.

With reference to the first aspect, in a possible implementation manner, the method further includes: the configuration information of the PDCP entity further includes third-type PDCP information, and the third-type PDCP information is PDCP information for the sending side The configuration information carried by the RLC also includes third-type RLC information, and the third-type RLC information is RLC information for the sending side.

With reference to the first aspect, in a possible implementation manner, when the first condition is satisfied, the first message includes configuration information of the first side link radio bearer; the first condition includes the following conditions Any one of: the radio resource control RRC state of the first terminal device is the RRC connected state and the RRC state of the second terminal device is the RRC connected state; the first terminal device is within the coverage area, and the second terminal device Is out of coverage.

With reference to the first aspect, in a possible implementation manner, if the RRC state of the first terminal device is the RRC connected state and the RRC state of the second terminal device is the RRC connected state, the first message further includes the The device identification of the first terminal device.

With reference to the first aspect, in a possible implementation manner, the first message includes QoS information corresponding to the first side link radio bearer, and the QoS information includes QoS parameters or QoS indicating QoS parameters Index, or identification of QoS flow.

With reference to the first aspect, in a possible implementation manner, the QoS information corresponding to the first side link radio bearer further includes at least one of the following information: The first side link radio bearer Identifier; the identifier of the first logical channel corresponding to the first side link radio bearer.

With reference to the first aspect, in a possible implementation manner, when the second condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the second condition includes the following Any one of the conditions: the first terminal device is out of coverage, and the second terminal device is out of coverage; the RRC state of the first terminal device is RRC idle or RRC inactive and all The serving cell of the second terminal device is the same as the serving cell of the first terminal device.

With reference to the first aspect, in a possible implementation manner, before the first terminal device sends the first message to the second terminal device, the method further includes: the first terminal device receives the first A third message sent by the second terminal device, where the third message includes first information, and the first information is used to indicate the coverage of the second terminal, and the coverage includes the IC within the coverage and the coverage outside the coverage OOC.

With reference to the first aspect, in a possible implementation manner, when the coverage of the second terminal is within the coverage, the third message further includes second information, and the second information is used to indicate The cell ID of the serving cell of the second terminal device, or the cell ID of the serving cell of the second terminal device and the frequency of the serving cell.

With reference to the first aspect, in a possible implementation, when the third condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the third condition includes the following Any one of the conditions: the RRC state of the first terminal device is an RRC idle state or an RRC inactive state and the RRC state of the second terminal device is an RRC connected state; the first terminal device is out of coverage And the second terminal device is within the coverage.

With reference to the first aspect, in a possible implementation manner, the second message is used to indicate configuration information of the first side link radio bearer, and the second message further includes the first side link The identifier of the wireless radio bearer and the source information and/or destination information associated with the first sidelink wireless bearer.

With reference to the first aspect, in a possible implementation manner, after the first terminal device receives the second message sent by the second terminal device, the method further includes: the first terminal device sends the second message to the second terminal Sending a fourth message, where the fourth message is used to instruct the first terminal device to complete the configuration or reconfiguration of the first side link radio bearer.

With reference to the first aspect, in a possible implementation manner, before the first terminal device sends the first message to the second terminal device, the method further includes:

The first terminal device receives a fifth message sent by the second terminal device, where the fifth message includes at least one of the following information: third information, and the third information is used to indicate the first The coverage condition of the second terminal device, where the coverage condition includes the IC within the coverage range and the OOC outside the coverage range; fourth information, the fourth information is used to indicate whether the RRC state of the second terminal device is the connected state.

With reference to the first aspect, in a possible implementation manner, before the first terminal device receives the fifth message sent by the second terminal device, the method further includes: the first terminal device sends a message to the second terminal The device sends a sixth message, the sixth message includes at least one of the following information: fifth information, the fifth information is used to indicate the coverage of the first terminal device, the coverage includes the coverage In-IC and out-of-coverage OOC; sixth information, where the sixth information is used to indicate whether the RRC state of the first terminal device is a connected state.

With reference to the first aspect, in a possible implementation manner, the first message is an RRC message, and the first terminal device triggers to send the first message when the following conditions are met: according to the first mapping relationship and all According to the QoS information, the first terminal device determines that the first side link radio bearer needs to be established, wherein the first mapping relationship is used to indicate that the QoS information corresponding to the first side link radio bearer is included Mapping relationship between multiple Qos information and configuration information of multiple sidelink radio bearers including the first sidelink radio bearer; the first terminal device needs to modify the first Configuration information of a side link wireless bearer; the first terminal device receives at least one of the following messages sent by the second terminal device: a side link connection establishment response message; a side link security activation response message The first terminal device receives a fourth message sent by the base station, and the fourth message is an RRC connection reconfiguration message.

With reference to the first aspect, in a possible implementation manner, the first message, the second message, the third message, the fourth message, the fifth message, and the sixth message are all The transmission is through a second side link radio bearer, where the configuration of the second side link radio bearer is a default configuration or a predefined configuration.

In a second aspect, a method for configuring a wireless bearer is provided, including: a second terminal device receives a first message sent by a first terminal device, where the first message is used to instruct the second terminal device to configure or reconfigure A first side link wireless bearer between the first terminal devices; the second terminal device sends a second message to the first terminal device, where the second message is used to instruct the second terminal device to complete The configuration or reconfiguration of the first side link radio bearer, or the second message includes configuration information of the first side link radio bearer.

With reference to the second aspect, in a possible implementation manner, the first message includes configuration information of the first side link radio bearer, or the first message includes the first side link radio Bear the corresponding QoS information.

With reference to the second aspect, in a possible implementation manner, the first message further includes source information and/or destination information associated with the first sidelink radio bearer.

With reference to the second aspect, in a possible implementation manner, the first message includes configuration information of the first side link radio bearer, and the configuration information of the first side link radio bearer includes the following information At least one of: an identifier of the first sidelink radio bearer; an identifier of the first logical channel corresponding to the first sidelink radio bearer; configuration information of a packet data aggregation protocol PDCP entity, where , The PDCP entity is the PDCP entity of the first side link radio bearer, or the PDCP entity is the PDCP entity corresponding to the first logical channel; the configuration information of the radio link control RLC bearer, where , The RLC bearer is the RLC bearer corresponding to the first side link radio bearer, or the RLC bearer is the RLC bearer corresponding to the first logical channel.

With reference to the second aspect, in a possible implementation manner, the configuration information of the PDCP entity includes first type PDCP information and second type PDCP information; the configuration information carried by the RLC includes first type RLC information and second RLC-like information; wherein, the first type of PDCP information is PDCP information for both the sending side and the receiving side; the second type of PDCP information is PDCP information for the receiving side; and the first type of RLC information is It is also used for RLC information on the sending side and the receiving side; the second type of RLC information is RLC information for the receiving side.

With reference to the second aspect, in a possible implementation manner, the configuration information of the PDCP entity further includes third-type PDCP information, where the third-type PDCP information is PDCP information for the sending side; The configuration information also includes a third type of RLC information, where the third type of RLC information is RLC information for the sending side.

With reference to the second aspect, in a possible implementation manner, the method further includes: when the first condition is satisfied, the first message includes configuration information of the first side link radio bearer; the The first condition includes any one of the following conditions: the radio resource control RRC state of the first terminal device is the RRC connected state and the RRC state of the second terminal device is the RRC connected state; the first terminal device is within the coverage, And the second terminal device is outside the coverage.

With reference to the second aspect, in a possible implementation manner, when the RRC state of the first terminal device is the RRC connected state and the RRC state of the second terminal device is the RRC connected state, the first message further Including the device identification of the first terminal device.

With reference to the second aspect, in a possible implementation manner, the method further includes: the second terminal device sends a seventh message to the base station, where the seventh message includes the device identifier and the location of the first terminal device. The identifier of the first side link radio bearer.

With reference to the second aspect, in a possible implementation manner, the first message includes QoS information corresponding to the first side link radio bearer, and the QoS information includes QoS parameters or QoS indicating QoS parameters Index, or identification of QoS flow.

With reference to the second aspect, in a possible implementation manner, the QoS information corresponding to the first side link radio bearer further includes at least one of the following information: the first side link radio bearer Identifier; the identifier of the first logical channel corresponding to the first side link radio bearer.

With reference to the second aspect, in a possible implementation manner, the method further includes: when the second condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; The second condition includes any one of the following conditions: the first terminal device is out of coverage, and the second terminal device is out of coverage; the RRC state of the first terminal device is the RRC idle state or The RRC is in an inactive state and the serving cell of the second terminal device is the same as the serving cell of the first terminal device.

With reference to the second aspect, in a possible implementation manner, the method further includes: the second terminal device determining the first side chain according to QoS information corresponding to the first side chain radio bearer Configuration information of wireless bearer.

With reference to the second aspect, in a possible implementation manner, the second terminal device determines the configuration information of the first side link radio bearer according to the QoS information corresponding to the first side link radio bearer Including: the second terminal device determines the configuration information of the first side link radio bearer according to the message 1 and the QoS information, wherein the first mapping relationship is used to indicate that the first side link is included A mapping relationship between multiple QoS information including QoS information corresponding to a road radio bearer and configuration information of multiple side link radio bearers including the first side link radio bearer.

With reference to the second aspect, in a possible implementation manner, before the second terminal device receives the first message sent by the first terminal device, the method further includes: the second terminal device sends a message to the first The terminal device sends a third message, where the third message includes first information that is used to indicate the coverage of the second terminal, and the coverage includes the IC within the coverage and the OOC outside the coverage.

With reference to the second aspect, in a possible implementation manner, when the coverage of the second terminal is within the coverage, the third message further includes second information, and the second information is used to indicate The cell ID of the serving cell of the second terminal device, or the cell ID of the serving cell of the second terminal device and the frequency of the serving cell.

With reference to the second aspect, in a possible implementation manner, the method further includes: when the third condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; The third condition includes any one of the following conditions: the RRC state of the first terminal device is an RRC idle state or an RRC inactive state and the RRC state of the second terminal device is an RRC connected state; the first The terminal device is outside the coverage, and the second terminal device is within the coverage.

With reference to the second aspect, in a possible implementation manner, the method further includes: the second terminal device sends an eighth message to the base station, where the eighth message includes the first sidelink wireless Carrying the information of the corresponding Qos; the second terminal device receives the RRC reconfiguration message sent by the base station.

With reference to the second aspect, in a possible implementation manner, the eighth message further includes source information and/or destination information associated with the first sidelink radio bearer; the RRC reconfiguration message also Include source information and/or destination information associated with the first sidelink radio bearer.

With reference to the second aspect, in a possible implementation manner, the second message includes configuration information of the first side link radio bearer, and the second message further includes: the first side link An identifier of the wireless bearer and destination information associated with the first sidelink wireless bearer; or the second message further includes: an identifier of the first sidelink wireless bearer and the first sidechain Source information associated with the radio bearer; or the second message further includes: an identifier of the first side link radio bearer, source information associated with the first side link radio bearer, and destination information .

With reference to the second aspect, in a possible implementation manner, after the second terminal device sends the second message to the first terminal device, the method further includes: the second terminal device receives the first terminal device to send The fourth message is used to instruct the first terminal device to complete the configuration or reconfiguration of the first side link radio bearer.

With reference to the second aspect, in a possible implementation manner, before the second terminal device receives the first message sent by the first terminal device, the method further includes: the second terminal device sends the first message to the first terminal device A fifth message, the fifth message includes at least one of the following information: third information, the third information is used to indicate the coverage of the second terminal device, the coverage includes the IC and Out-of-coverage OOC; fourth information, where the fourth information is used to indicate whether the RRC state of the second terminal device is a connected state.

With reference to the second aspect, in a possible implementation manner, before the second terminal device sends a fifth message to the first terminal device, the method further includes: the second terminal device receives the first terminal device A sixth message sent, the sixth message including at least one of the following information: fifth information, the fifth information is used to indicate the coverage of the first terminal device, the coverage includes the coverage IC and OOC out of coverage; sixth information, the sixth information is used to indicate whether the RRC state of the first terminal device is a connected state.

With reference to the second aspect, in a possible implementation manner, wherein the first message, the second message, the third message, the fourth message, the fifth message, the sixth The messages are all transmitted through the second side link wireless bearer, where the configuration of the second side link wireless bearer is a default configuration or a predefined configuration.

In a third aspect, a method for configuring a wireless bearer is provided, including: a base station receives a seventh message sent by a second terminal device, where the seventh message includes the device identification of the first terminal device and the first side chain Road wireless bearer identification.

According to a fourth aspect, a radio bearer configuration method is provided, including: a base station receiving an eighth message sent by a second terminal device, where the eighth message includes Qos information corresponding to the first side link radio bearer; The base station configures the corresponding first side link radio bearer according to the Qos information corresponding to the first side link radio bearer in the eighth message; the base station sends RRC reconfiguration to the second terminal device news.

According to a fifth aspect, there is provided a terminal that executes the above method and steps or operations or functions in the above-mentioned first aspect and each implementation manner of the first aspect performed by a first terminal device.

According to a sixth aspect, there is provided a terminal that executes the method, step, operation, or function in the above-mentioned second aspect and each implementation manner of the second aspect performed by a second terminal device.

According to a seventh aspect, a communication device is provided, including: a processor coupled to a memory, where the memory is used to store a program, and when the program is executed by the processor, the communication device is used to perform the above Each module or unit of the method in the first aspect and each implementation of the first aspect; or the device is used to execute each module or unit of the method in the above second aspect and each implementation of the second aspect.

In one implementation, the communication device is a terminal device.

In one design, the device is a communication chip, and the communication chip may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.

In another design, the apparatus is a communication device, and the communication device may include a transmitter for transmitting information or data, and a receiver for receiving information or data.

In an eighth aspect, a communication device is provided, including: a processor coupled to a memory, where the memory is used to store a program, and when the program is executed by the processor, the communication device is used to execute Each module or unit of the method in the above third aspect; or the device is used to execute each module or unit of the method in the above fourth aspect.

In one implementation, the communication device is a network-side device.

In one design, the communication device is a communication chip, and the communication chip may include an input circuit or interface for transmitting information or data, and an output circuit or interface for receiving information or data.

In another design, the communication device is a communication device, and the communication chip may include a transmitter for transmitting information or data, and a receiver for receiving information or data.

In a ninth aspect, a storage medium is provided, on which a computer program or instruction is stored, and when executed, the computer program or instruction causes the computer to execute any of the possible implementation manners of the first aspect or the second aspect above method.

According to a tenth aspect, there is provided a storage medium on which a computer program or instruction is stored. When the computer program or instruction is executed, the computer is executed to cause the computer to execute the method in the third aspect or the fourth aspect.

In an eleventh aspect, a chip system is provided, including a processor, for performing the method in the first aspect or any possible implementation manner of the first aspect.

The chip system may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.

In a twelfth aspect, a chip system is provided, including a processor, for performing the method in the second aspect or any possible implementation manner of the second aspect.

In a thirteenth aspect, a chip system is provided, including a processor, for performing the method of the third aspect.

According to a fourteenth aspect, there is provided a chip system, including a processor, for performing the method of the second aspect.

According to a fifteenth aspect, a communication system is provided, including: a communication device for performing the method in the first aspect or any possible implementation manner of the first aspect, or for performing the second aspect or the second aspect The method in any possible implementation manner of the aspect; or the method for performing the above third aspect; or the method for performing the above fourth aspect.

BRIEF DESCRIPTION

Figure 1 is a schematic diagram of a V2X communication scenario.

Figure 2 is a schematic diagram of the V2X network system architecture.

FIG. 3 is a schematic diagram of an application scenario of an embodiment of the present application.

4 is a schematic flowchart of a method for configuring a side link radio bearer according to an embodiment of the present application.

FIG. 5 is a schematic diagram of two terminal devices communicating according to an embodiment of the present application.

6 is a schematic diagram of two groups of terminal devices communicating in an embodiment of the present application.

7 is a schematic flowchart of a method for configuring a side link radio bearer according to another embodiment of the present application.

8 is a schematic structural diagram of a method for configuring a side link radio bearer according to yet another embodiment of the present application.

9 is a schematic structural diagram of a communication device according to an embodiment of the present application.

10 is a schematic structural diagram of a communication device according to another embodiment of this application.

FIG. 11 is a schematic structural diagram of a communication device according to another embodiment of this application.

detailed description

The technical solutions in this application will be described below with reference to the drawings.

The technical solutions of the embodiments of the present application may be applied to various communication systems, for example: a global system for mobile communications (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) system, General packet radio service (generalpacketradioservice, GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile communication system (universal mobile telecommunication system, UMTS) , Global Interoperability for microwave access (WiMAX) communication system, future fifth generation (5th generation, 5G) system or new radio (newradio, NR), etc.

The terminal device in the embodiments of the present application may refer to user equipment, 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. Terminal devices can also be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants (PDA)), handheld devices with wireless communication capabilities, computing Devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or terminal devices in public land mobile network (PLMN) that will evolve in the future, etc. This is not limited.

In addition, in the embodiments of the present invention, the terminal device may also be a terminal device in an Internet of Things (IoT) system. IoT is an important part of the future development of information technology, and its main technical feature is to pass items through the communication technology and the network. Connected to realize the intelligent network of human-machine interconnection and object interconnection.

In the embodiment of the present invention, the IOT technology can achieve a mass connection, deep coverage, and terminal power saving by, for example, narrowband NB technology. For example, NB includes only one resource block (resourceblock, RB), that is, the bandwidth of NB is only 180KB. To achieve mass access, the terminal must be discrete in access. According to the communication method of the embodiment of the present invention, the congestion problem of the IOT technology mass terminal when accessing the network through the NB can be effectively solved.

The network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a global system for mobile communication (GSM) system or a base station (basetransceiver station, BTS) in code division multiple access (CDMA) ), it can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, an evolved base station (evolvedNodeB, eNB or eNodeB) in an LTE system, or cloud wireless access A wireless controller in a network (cloudradioaccessnetwork, CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, etc. It may be an access point (access point, AP) in the WLAN, or a gNB in a new radio system (newradio, NR) system. The embodiments of the present application are not limited.

In addition, in the embodiment of the present invention, the access network device provides services for the cell, and the terminal device communicates with the access network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell. It may be a cell corresponding to an access network device (such as a base station). The cell may belong to a macro base station or a base station corresponding to a small cell (small cell), where the small cell may include: a metro cell and a micro cell. , Picocell, femtocell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

Among them, the functions and specific implementation manners of the terminal devices and access network devices listed above are only exemplary descriptions, and the present invention is not limited thereto.

In the embodiments of the present application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), memory management unit (MMU), and memory (also called main memory). The operating system may be any one or more computer operating systems that implement business processes through processes, for example, a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer includes browser, address book, word processing software, instant messaging software and other applications. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution body of the method provided in the embodiment of the present application, as long as it can run the program that records the code of the method provided by the embodiment of the present application to provide according to the embodiment of the present application The method may be used for communication. For example, the execution body of the method provided in the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call a program and execute the program.

In addition, various aspects or features of the present application may be implemented as methods, devices, or articles using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, the computer-readable medium may include, but is not limited to: magnetic storage devices (for example, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (for example, compact discs (CDs), digital versatile discs (DVDs), etc.), Smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks, or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.

To facilitate understanding of the technical solutions provided by the embodiments of the present invention, the following first describes some knowledge involved in the embodiments of the present application.

A radio bearer (RB) is composed of a packet data convergence layer (packetdataconvergenceprotocol, PDCP) entity, a radio link control (RLC) entity or a radio link control bearer (RLC bearer) and a logical channel (LC) . The configuration of the radio bearer is the configuration of the PDCP entity, RLC entity and logical channel of the radio bearer. Radio bearers are divided into signaling radio bearers (signalradio bearer, SRB) and data radio bearers (dataradio bearer, DRB). The configuration of the wireless bearer needs to be able to guarantee the QoS requirements of the services transmitted through the wireless bearer.

In an LTE system or an NR system, the communication interface between a user equipment (UE) and a base station (eNB/gNB) is called a Uu port. On the Uu port, the link where the UE sends data to the base station is called an uplink, and the link where the UE receives data sent by the base station is called a downlink. The communication interface between UE and UE is called PC5 port. The link transmitting data between the UE on the PC5 port and the UE is called a side link. The PC5 port is generally used in scenarios where V2X or D2D can communicate directly between devices.

The radio bearer on the Uu port is used for data or signaling transmission between the UE and the base station. Among them, the PDCP, RLC, and logical channels of the DRB are established and configured by the base station for the UE. The PDCP, RLC, and logical channel of the SRB are established and configured by the base station for the UE, or configured according to predefined parameters.

In the LTEV2X system, only broadcast services are supported. The radio bearers on the PC5 port are established and configured by the originating UE and the receiving UE respectively. The originating UE and the receiving UE do not need to coordinate the configuration of radio bearers.

In order to facilitate understanding of the embodiments of the present application, before introducing the embodiments of the present application, the following points will be made.

First, in the embodiment of the present application, the QoS parameters include but are not limited to the guaranteed transmission rate, the maximum transmission rate, the delay requirement, the reliability requirement, the priority, and the communication distance.

Second, for sidelink communication, the definition of the terminal device being in coverage (IC) is: if the terminal device detects that at least one cell satisfies a carrier frequency configured for sidelink communication S criterion, then the terminal device considers that side link communication on the carrier frequency is side link communication within the coverage. For side link communication, the definition of the terminal device being out of coverage (OOC) is: if the terminal device detects any cell that satisfies the S criterion on a carrier frequency configured for side link communication , Then the terminal device considers that side link communication on the carrier frequency is side link communication outside the coverage. The specific definition of S-quasi-side can participate in section 11.4.1 of 3GPP TS36.30415.0.0.

Third, the configuration of the side link radio bearer includes the configuration of the sending end and the receiving end.

When the terminal device communicates with the terminal device, a terminal device will be configured with at least two wireless bearer configurations, one is the terminal device as the receiving end, and the received wireless bearer configuration used when receiving data sent by the terminal device with which it communicates; The other is the transmission radio bearer configuration used by the terminal device as the sending end to send data to the terminal device with which it communicates.

The method provided by the embodiments of the present application will be described in detail below with reference to the drawings.

The technology of communication between the terminal and the terminal based on the side link is gradually applied to various fields. The following uses intelligent transportation as an example.

In order to improve the safety and intelligence of transportation systems, the concept of intelligent transportation systems is gradually emerging. Intelligent transportation can take advantage of a new generation of communication networks and data processing capabilities to improve the overall efficiency of the transportation system, reduce energy consumption, and increase the safety and convenience of transportation. V2X is the key technology of the future intelligent transportation system. It uses vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-passenger (V2P) communication, and vehicle-to-network (vehicletonetwork, V2N) communication and other communication methods can obtain a series of traffic information such as real-time road conditions, road information, pedestrian information, etc., thereby improving driving safety, reducing congestion, improving traffic efficiency, and providing in-vehicle entertainment information. Based on V2X technology, it can not only greatly improve traffic safety and reduce the rate of traffic accidents, but also provide a low-cost, easy-to-implement technical route and basic platform for autonomous driving, intelligent transportation and Internet of Vehicles innovation.

Figure 1 shows a V2X communication scenario. As shown in Figure 1, when the vehicle 110 and the vehicle 120 communicate through V2V, the vehicle can change its own speed, driving direction, specific location, whether the emergency brake is applied, etc. Information is broadcast to surrounding vehicles. By acquiring this kind of information, the drivers of the surrounding vehicles can better perceive the traffic situation beyond the line of sight, so as to predict and avoid the dangerous situation. When communicating between the vehicle 110 and the infrastructure 140 through V2I, in addition to the interaction of the above-mentioned safety information, the roadside infrastructure 140 such as a roadside unit (roadside unit, RSU) can also provide various service information and data network connections for the vehicle These features, such as non-parking tolls and in-car entertainment, have greatly improved traffic intelligence. When the vehicle 110 and the person 130 communicate via V2P, the vehicle 110 can provide its real-time location, road conditions, etc. to people in a nearby location, thereby providing real-time road conditions to the people nearby, so as to take corresponding measures.

It should be understood that, for convenience of description, FIG. 1 only describes the communication between a single vehicle and a vehicle, a single person and a vehicle, and a single vehicle and an infrastructure, but the present invention is not limited to this. For example, in a car networking system, a vehicle The number can also be more, the invention does not limit this.

New radio access technology (NR) is currently the mainstream wireless communication technology. It can support V2X communication with lower latency and higher reliability for V2X service characteristics and new service requirements. Fig. 2 shows an architecture diagram of a V2X network system. In the V2X system shown in the figure, there are mainly two kinds of air interfaces, namely a communication interface (Uu port) between the terminal UE1 and the base station, and the terminal UE1 and the terminal Communication interface between UE2 (PC5 port), where Uu port is used for communication between the terminal and the base station or roadside unit, and PC5 port is used for side link communication between the terminal and the terminal.

Exemplarily, in a group communication scenario, a group of terminals may communicate with each other based on side link resources, including but not limited to unicast, multicast, or broadcast, for example, one or more terminals in a group of terminals Can communicate with any one or more terminals in the group of terminals, and one or more terminals in the group of terminals can also communicate with any one or more terminals outside the group of terminals, in other words In other words, the situation in which any one or more terminals in the group of terminals communicate with any other terminal or terminals can be classified as a group communication scenario, where any other terminal or terminals are not limited to belong to the group of terminals.

It should also be understood that, in order to facilitate the understanding of the technical solutions in the present application, a group of terminals performs group communication as an example for description in the embodiments of the present application, but the method of the embodiment of the present application is not limited to be applied to group communication. FIG. 3 is a schematic diagram of an application scenario according to an embodiment of the present application. The communication network architecture shown in FIG. 3 includes a base station 310 and a group of terminals 320.

The base station 310 may be used to connect a terminal to a radio access network (RAN). Therefore, the base station may sometimes be called an access network device or an access network node. It is understandable that in systems using different wireless access technologies, the names of devices with base station functions may be different. For convenience of description, the embodiments of the present application will collectively refer to devices that provide wireless communication access functions for terminals as base stations. The base station 310 may be, for example, an evolved node B (eNB) in long term evolution (LTE), or a RAN node (RANnode) in 5G. The base station 310 may be a macro base station or a micro base station. The base station 310 may also be a roadside device or a terminal with a wireless access function. In the embodiments of the present application, devices capable of implementing the functions involved in the base station side in the embodiments of the present application are collectively referred to as base stations. The coverage area of a base station 310 may include one cell or multiple cells.

A group of terminals 320 may include multiple terminals, such as the first terminal 321 and other terminals 322 shown in FIG. 3, and the first terminal 321 may be any terminal in the group of terminals. A group of terminals 320 may all be in a connected state (or radio resource control (RRC) connection state); or, some terminals in a group of terminals 320 are in a connected state, and some terminals are in an idle state or an inactive state (or RRC idle state). In some scenarios (such as the 5GNRV2X scenario), the group of terminals may be called a platoon.

Each terminal in the group of terminals 320 can communicate through a side link, and one or more terminals in the group of terminals can also communicate with one or more terminals outside the group of terminals through a side chain Way to communicate. For example, in FIG. 3, the first terminal 321 can communicate with any one or more of the other terminals 322 based on the side link, and any one or more of the other terminals 322 can also communicate with each other. The communication methods include But it is not limited to unicast, multicast or broadcast. Any one or more terminals of the first terminal 321 or the other terminal 322 may also communicate with one or more terminals other than a group of terminals, which is not limited in this embodiment of the present application.

FIG. 4 shows a schematic flowchart of a method 400 for configuring a side link radio bearer according to an embodiment of the present application. The method of FIG. 4 may be executed by the first terminal device. The method may include steps S410 to S420.

In step 410, the first terminal device sends a message 1 (that is, an example of the first message) to the second terminal device. The message 1 is used to instruct the second terminal device to configure or reconfigure the first terminal device with the first terminal device. Side bearer radio bearer.

The first side link radio bearer may be used for communication between the first terminal device and the second terminal device.

The message 1 indicates that the second terminal device configures or reconfigures the first side link radio bearer with the first terminal device in various ways, which can be indicated directly or indirectly.

Optionally, the message 1 further includes source information and/or destination information associated with the first sidelink radio bearer. The source information associated with the first side link radio bearer is the information of the terminal device on the sending side. The source information may be the source layer two identifier (SourceLayer2ID) of the terminal device on the sending side, or the source layer two identifier Corresponding index value The destination information associated with the first sidelink radio bearer is the information of the terminal device receiving the test. The destination information may be the destination layer two identifier (DestinationLayer2ID) or the destination layer two identifier The corresponding index value.

For example, as shown in FIG. 5, a schematic diagram when two terminal devices send data. UE3 establishes connection with UE1 and UE2 respectively. Both UE1 and UE2 need to send message 1 to UE3 to configure the sidelink radio bearer between UE1 and UE3, and the sidelink radio bearer between UE2 and UE3, respectively. In order to distinguish the sidelink radio bearers of UE1 and UE2 at UE3, UE1 and UE2 need to carry the source information of UE1 and UE2 in the message 1 sent. For example, the source information of UE1 may be UE1, and the source information of UE2 may be UE2.

As another example, as shown in FIG. 6, UE3 establishes connections with UE1 and UE2, respectively. Both UE1 and UE2 need to send message 1 to UE3 to configure the sidelink radio bearer between UE1 and UE3, and the sidelink radio bearer between UE2 and UE3, respectively. UE1 and UE3, and UE2 and UE3 belong to two different groups at the same time, and these two different groups have different group IDs. In order to distinguish between UE1 and UE2 sidelink radio bearers at UE3 and sidelink radio bearers under different destination information between UE1 and UE3, sidelink under different destination information between UE2 and UE3 For the link radio bearer, UE1 and UE2 need to carry the source information of UE1 and the destination information of UE3, and the source information of UE2 and the destination information of UE3 in the message 1 sent. Correspondingly, after receiving the source information and destination information associated with the first side link radio bearer or the destination information associated with the first side link radio bearer included in the message 1, the second terminal device needs to The source information and the destination information associated with the first side link radio bearer are associated or bound, or the destination information associated with the first side link radio bearer needs to be associated or bound.

Optionally, the second terminal device may acquire the source information and the destination information or the destination information associated with the first sidelink radio bearer in the following three ways.

Way 1

The source information and/or destination information is included in the physical layer signaling that schedules the first message.

Specifically, the physical layer sends the source information and/or destination information to the MAC layer. After decoding the message 1 at the MAC layer to obtain the MACSDU, the MAC layer sends the source information and/or destination information to the RRC layer.

Way 2

The source information/or destination information is included in the MAC protocol unit layer (protocoldataunit, PDU) of UEB, and the MACPDU is a MAC layer protocol data unit. After decoding the message 1 in the MAC layer of the UEB to obtain the MACSDU, the MAC layer sends the source information and/or destination information to the RRC layer.

Way 3

Message 1 carries active information and/or destination information.

Exemplarily, the message 1 may include the configuration information of the first side link radio bearer

Optionally, the configuration information of the first side link radio bearer sent by the first terminal device to the second terminal device may be obtained in the following four ways.

Method A

The first terminal device determines the configuration information of the first side link radio bearer according to the QoS parameter of the communication between the first terminal device and the second terminal device.

Method B

The first terminal device sends the QoS parameters of the communication service between the first terminal device and the second terminal device to the base station accessed by the first terminal device, and the base station accessed by the first terminal device configures the QoS parameter corresponding to the QoS parameter The configuration information of the first side link radio bearer, and send the configuration information of the first side link radio bearer to the first terminal device.

Method C

When the first terminal device leaves the factory, it will preset the correspondence between the configuration information of multiple radio bearers and multiple QoS parameters. The first terminal device uses the service QoS parameters for communication between the first terminal device and the second terminal device To find the configuration information of the first side link radio bearer corresponding to the QoS parameter.

Way D

The base station contains the correspondence between multiple radio bearer configuration information and multiple QoS parameters in the system information of the cell. The first terminal device finds the first side corresponding to the QoS parameter according to the service QoS parameter for communication between the first terminal device and the second terminal device, and according to the mapping relationship between the QoS parameter contained in the system information and the configuration information of the radio bearer Configuration information of the downlink radio bearer.

Optionally, the configuration information of the first side link radio bearer may include at least one of the following information:

The identifier of the first side link radio bearer. Through the identifier of the first side link radio bearer, the second terminal device can know which first side link radio bearer the first terminal device configures for it;

The identifier of the first logical channel corresponding to the first side link radio bearer. Through the identifier of the first logical channel corresponding to the first side link radio bearer, the second terminal device can know that the first terminal device is The logical channel through which the configured first side link radio bearer is transmitted, so that upon receiving the Media Access Control Service Data Unit (MACSDU) corresponding to the first logical channel identifier, it can be known for processing The MACSDU side link radio bearer.

For example, the first terminal device sends the side link radio bearer 1 to the second terminal device through the logical channel 1, where the side link radio bearer 1 can be equivalent to the identification of the side link radio bearer, logical channel 1 Equivalent to the identification of the logical channel. This application is not limited to this.

Configuration information of a packet data aggregation protocol PDCP entity, where the PDCP entity is a PDCP entity that is carried by the first side link radio bearer, and the PDCP entity is a PDCP entity corresponding to the first logical channel. The configuration information of the PDCP entity may include the first type PDCP information and the second type PDCP information, where the first type PDCP information is PDCP information used for both the sending side and the receiving side, that is, the first type PDCP information is The PDCP information required by the terminal device to send data is also the PDCP information required by another terminal device to receive; the second type of PDCP information is the PDCP information for the receiving side, that is, the second type of PDCP The information is the PDCP information that the terminal device only needs when receiving data; the configuration information of the PDCP entity also includes the third type of PDCP information. The third type of PDCP information is PDCP information for the sending side, that is, the third type PDCP information is the PDCP information that the terminal device only needs when sending data.

For example, the configuration information of the PDCP entity may include one or more of the following information: the length of the PDCP sequence number (SN), the length of the discard timer, the header compression algorithm, the length of the reordering timer, and the indication of the wireless Indication information indicating whether the bearer is integrity protected, instruction information indicating whether the wireless bearer is encrypted, and instruction information indicating whether the wireless bearer is allowed to be delivered out of order. Among them, the first type of PDCP information may be the length of the PDCP sequence number (SN); the second type of PDCP information may be: the length of the reordering timer, indication information indicating whether the radio bearer is integrity protected, indicating the Indication information of whether the wireless bearer is encrypted, and instruction information indicating whether the wireless bearer allows out-of-order delivery; the third type of PDCP information may be: the length of the discard timer.

The configuration information of the radio link control RLC bearer, where the RLC bearer is the RLC bearer corresponding to the first side link radio bearer, or the RLC bearer is the RLC bearer corresponding to the first logical channel. The configuration information carried by the RLC includes the first type of RLC information and the second type of RLC information. The first type of RLC information is the RLC information used for both the sending side and the receiving side. That is to say, the first type of RLC information is for the terminal device. The RLC information required to send data is also the RLC information required by another terminal device to receive data; the second type of RLC information is the RLC information used on the receiving side, that is, the second type of RLC information is It is the RLC information that the terminal device only needs when receiving data; the configuration information carried by the RLC also includes the third type of RLC information. The third type of RLC information is the RLC information for the sending side, that is, the third type of RLC information That is, the RLC information that the terminal device only needs when sending data.

The configuration information carried by the RLC may include one or more of the following information: whether the configuration of the RLC entity is RLCAM or RLCUM, the length of the RLCSN, and the length of the reassembly timer. If the RLC entity is configured as RLCAM, it also includes: the length of the status report prohibit timer, the length of the polling retransmission timer, the number of polling PDUs (ProtocolDataUnit, protocol data unit), the number of bytes polled, and the maximum The number of retransmissions. Among them, AM is the confirmation mode, UM is the non-confirmation mode, for the non-confirmation mode, the RLC entity is unidirectional, each has a sending entity and a receiving entity, and independently complete the data transmission and reception; and for the confirmation mode, RLC The entity is bidirectional. Although there is only one entity, it is divided into the receiving side and the sending side to complete the function of sending and receiving data, and they can communicate with each other. Among them, the first type of RLC information may be: whether the configuration of the RLC entity is RLCAM or RLCUM, the length of the RLCSN; the second type of RLC information may be: the length of the reassembly timer, the length of the status report prohibit timer; the third type of RLC information It can be: the length of the polling retransmission timer, the number of polling PDU (ProtocolDataUnit, protocol data unit), the number of bytes polled, and the maximum number of retransmissions.

Exemplarily, the message 1 may also include QoS information corresponding to the first side link radio bearer. The QoS information includes a QoS parameter, or a QoS index indicating the QoS parameter, or an identifier of the QoS flow.

Optionally, the QoS information corresponding to the first side link radio bearer may further include: an identifier of the side link radio bearer associated with the QoS information; or associated with the QoS information An identifier of the logical channel of the side link wireless bearer.

The message 1 may be transmitted through the second side link wireless bearer, and the configuration information of the second side link wireless bearer may be a default configuration or a predefined configuration. For example, the identifier of the logical channel of the second side link radio bearer may be a value predefined in the standard.

In step 420, the first side link radio bearer is established.

The second terminal device establishes the first side link radio bearer according to the configuration information of the first side link radio bearer included in the message 1 or the QoS information corresponding to the first side link radio bearer.

In step 430, the first terminal device receives a message 2 (that is, an example of a second message) sent by the second terminal device, where the message 2 is used to instruct the second terminal device to complete the first sidelink radio bearer Configure or reconfigure.

Optionally, the message 2 can also be transmitted through the second side link radio bearer.

Exemplarily, when the first terminal device communicates with the second terminal device, the first terminal device may trigger the first terminal terminal device to send a message 1 to the second terminal device in the following three ways, where the message 1 is an RRC message .

Way E

According to the first mapping relationship and the QoS information, the first terminal device determines that the first side link radio bearer needs to be established, where the first mapping relationship is used to indicate the QoS information including the first side link radio bearer. Mapping relationship between multiple Qos information and configuration information of multiple sidelink radio bearers including the first sidelink radio bearer.

Method F

The first terminal device needs to modify the configuration information of the first side link radio bearer.

Way G

The first terminal device receives at least one of the following messages sent by the second terminal device: a side link connection establishment response message; a side link security activation response message.

As an example, the first terminal device and the second terminal device do not need to meet any conditions, and the first terminal device can send a message 1 to the second terminal device, and the message 1 can include the configuration information of the first side link radio bearer , May also include the QoS information corresponding to the first side link radio bearer. When the message 1 includes the QoS information corresponding to the first side link radio bearer, the second terminal device will follow the first side chain The QoS information corresponding to the wireless bearer of the road establishes the first side link wireless bearer by itself. Therefore, it can be ensured that the first terminal device and the second terminal device can meet the QoS requirements of the service when communicating.

7 is a schematic flowchart of a method 700 for configuring a side link radio bearer according to another embodiment of the present application.

In step 710, the second terminal device sends a message 3 (ie, an example of a third message) to the first terminal device, where the message 3 includes first information, which is used to indicate the coverage of the second terminal, Coverage includes IC within coverage and OOC outside coverage.

In the case where the coverage of the second terminal is within the coverage, the message 3 also includes second information, which is used to indicate the cell identity of the serving cell of the second terminal device, or the cell of the serving cell of the second terminal device Identify and serve the frequency of the cell.

Among them, the message 3 can also be transmitted through the second side link radio bearer.

In step 720, the first terminal device determines the coverage of the second terminal device. Then it can be divided into two cases.

Situation 1

Exemplarily, in a case where the RRC state of the first terminal device is the RRC idle state or the RRC inactive state and the second terminal device and the first terminal device serve the same cell, or the first terminal device is out of coverage, and the first If the second terminal device is outside the coverage, step 730, step 740, and step 750 are performed.

In step 730, the first terminal device sends a message 4 (that is, another example of the first message) to the second terminal device. The message 4 is used to instruct the second terminal device to configure or reconfigure the first terminal device with the first terminal device. Side bearer radio bearer.

The message 4 indicates that the second terminal device configures or reconfigures the first side link radio bearer with the first terminal device in various ways, which can be indicated directly or indirectly.

Exemplarily, the message 4 may include QoS information corresponding to the first side link radio bearer, and the QoS information includes QoS parameters, or a QoS index indicating the QoS parameters, or an identification of the QoS flow.

For the QoS flow, each service packet has its corresponding QoS parameter, and the QoS flow may be multiple service packets, which have the same QoS parameter. For example, the QoS flow corresponding to multiple service packets may be QoS parameter 1 or QoS parameter 2. This application is not limited to this.

For example, QoS index 1 corresponds to QoS parameter 1, and QoS index 2 corresponds to QoS parameter 2. This application is not limited to this.

For another example, the indexes corresponding to QoS parameter A and QoS parameter B may be QoS index 1 and QoS index 2, respectively, the side link radio bearer corresponding to QoS parameter A is side link radio bearer 1, and the side corresponding to QoS parameter B The side link radio bearer is the side link radio bearer 2; when referring to the side link radio bearer 1 corresponding to the QoS index 1, that is, the side link radio bearer corresponding to the QoS parameter A is the side link radio bearer Bearer 1; when it is mentioned that the side link radio bearer 2 corresponding to the QoS index 2, that is, the side link radio bearer corresponding to the QoS parameter B is the side link radio bearer 2, this embodiment of the present application does not limited.

Optionally, the message 4 further includes source information and/or destination information associated with the first sidelink radio bearer. The source information associated with the first side link radio bearer is the information of the terminal device on the sending side. The source information may be the source layer two identifier (SourceLayer2ID) of the terminal device on the sending side, or the source layer two identifier Corresponding index value The destination information associated with the first sidelink radio bearer is the information of the terminal device receiving the test. The destination information may be the destination layer two identifier (DestinationLayer2ID) or the destination layer two identifier The corresponding index value. Optionally, the QoS information corresponding to the first side link radio bearer further includes at least one of the following information:

The identification of the radio bearer on the first side link;

The identifier of the first logical channel corresponding to the first side link radio bearer.

In step 740, the second terminal device determines the configuration information of the first side link radio bearer.

The second terminal device determines the configuration information of the first side link radio bearer according to the QoS information corresponding to the first side link radio bearer in message 4.

Optionally, the second terminal device determines the configuration information of the first side link radio bearer according to the first mapping relationship and the QoS information, where the first mapping relationship is used to indicate that the A mapping relationship between multiple QoS information including QoS information and configuration information of multiple side link radio bearers including the first side link radio bearer.

Optionally, when the first terminal device is outside the coverage and the second terminal device is outside the coverage, the first terminal device and the second terminal device have been preset with multiple radio bearers and multiple Correspondence relationship between each radio bearer and multiple Qos information (ie, the first mapping relationship).

Optionally, when the RRC state of the first terminal device is the RRC idle state or the RRC inactive state and the second terminal device and the first terminal device serve the same cell, the serving cell broadcasts multiple radio bearers and Correspondence between multiple radio bearers and multiple Qos information (ie, the first mapping relationship).

In step 750, the first terminal device receives the message 5 (ie, another example of the second message) sent by the second terminal device, and the second message is used to instruct the second terminal device to complete the configuration of the first side link radio bearer Or reassign. By determining the coverage status of the second terminal device, the first terminal sends corresponding Qos information to the second terminal device, and the second terminal device determines the configuration information of the first side link radio bearer according to the corresponding Qos information, so that It is ensured that when the first terminal device and the second terminal device communicate, the wireless bearer of the side link remains the same.

Situation 2

Exemplarily, in a case where the first terminal device is within the coverage range and the second terminal device is outside the coverage range, or, when the first terminal device is outside the coverage range and the second terminal device is under coverage If it is within the range, step 730, step 760, and step 750 are executed.

Exemplarily, the message 4 may include configuration information of the first side link radio bearer.

Optionally, the message 4 further includes source information and/or destination information associated with the first sidelink radio bearer. The source information associated with the first side link radio bearer is the information of the terminal device on the sending side. The source information may be the source layer two identifier (SourceLayer2ID) of the terminal device on the sending side, or the source layer two identifier Corresponding index value The destination information associated with the first sidelink radio bearer is the information of the terminal device receiving the test. The destination information may be the destination layer two identifier (DestinationLayer2ID) or the destination layer two identifier The corresponding index value.

The identifier of the first logical channel corresponding to the first side link radio bearer. Through the identifier of the first logical channel corresponding to the first side link radio bearer, the second terminal device can know that the first terminal device is The logical channel through which the configured first side link radio bearer is transmitted, so that after receiving the Media Access Control Service Data Unit (MACSDU) corresponding to the first logical channel identifier, it can be known for processing The MACSDU side link radio bearer.

For example, the configuration information of the PDCP entity may include one or more of the following information: the length of the PDCP sequence number (SN), the length of the discard timer, the header compression algorithm, the length of the reordering timer, and the indication of the wireless Indication information indicating whether the bearer is integrity protected, instruction information indicating whether the wireless bearer is encrypted, and instruction information indicating whether the wireless bearer is allowed to be delivered out of order. Among them, the first type of PDCP information may be the length of the PDCP sequence number (SN), and the second type of PDCP information may be: the length of the reordering timer, the indication information indicating whether the radio bearer is integrity protected, indicating the Indication information of whether the wireless bearer is encrypted, and instruction information indicating whether the wireless bearer allows out-of-order delivery; the third type of PDCP information may be: the length of the discard timer.

In step 760, the second terminal device establishes a first side link radio bearer.

The second terminal device establishes the first side link radio bearer according to the configuration information of the first side link radio bearer included in the message 4.

In step 750, the first terminal device receives the message 5 (ie, another example of the second message) sent by the second terminal device, and the second message is used to instruct the second terminal device to complete the configuration of the first side link radio bearer Or reassign.

Among them, the message 3, message 4, and message 5 may be transmitted through the second side link wireless bearer. The configuration of the second side radio link bearer may be a default configuration or a predefined configuration.

Exemplarily, when the first terminal device communicates with the second terminal device, the first terminal device may trigger the first terminal terminal device to send a message 4 to the second terminal device in the following three ways, where the message 4 is an RRC message .

Way E

Method F

Way G

When the first terminal device communicates with the second terminal device, the two terminal devices first send each other their own coverage and serving cell information. When both terminal devices are out of coverage at the same time, or both are in the coverage of the same serving cell at the same time, and the RRC state is idle or deactivated, the first terminal only needs to transfer the bearer to be established The QoS information is notified to the second terminal without the need to notify the configuration information of the bearer to be established, so that the signaling overhead of the PC5 port can be reduced.

FIG. 8 is a schematic flowchart of a method 800 for configuring a side link radio bearer according to another embodiment of the present application.

In step 810, the second terminal device sends a message 6 to the first terminal device (that is, an example of the fifth message).

The message 6 includes at least one of the following information:

Third information, the third information is used to indicate the coverage of the second terminal device, and the coverage includes the IC within the coverage and the OOC outside the coverage;

Fourth information. The fourth information is used to indicate whether the RRC state of the second terminal device is the connected state.

In step 820, the second terminal device receives the message 7 (that is, an example of the sixth message) sent by the first terminal device.

The message 7 includes at least one of the following information:

Fifth information, the fifth information is used to indicate the coverage of the first terminal device, the coverage includes IC within the coverage and OOC outside the coverage;

The sixth information is used to indicate whether the RRC state of the first terminal device is the connected state.

In step 830, the first terminal device determines the coverage and RRC connection status of the second terminal device. Then it is divided into two cases.

Situation 3

Exemplarily, in a case where the radio resource control RRC state of the first terminal device is the RRC connected state and the RRC state of the second terminal device is the RRC connected state. Then perform step 410, step 840, and step 420, respectively.

Exemplarily, the message 1 may include configuration information of the first side link radio bearer. The message 1 also includes the device identification of the first terminal device.

The message 1 may be transmitted through the second side link wireless bearer, and the configuration of the second side link wireless bearer may be a default configuration or a predefined configuration.

Exemplarily, the message 1 may include configuration information of the first side link radio bearer.

The configuration information carried by the RLC may include one or more of the following information: whether the configuration of the RLC entity is RLCAM or RLCUM, the length of the RLCSN, and the length of the reassembly timer. If the RLC entity is configured as RLCAM, it also includes: the length of the status report prohibit timer, the length of the polling retransmission timer, the number of polling PDUs (ProtocolDataUnit, protocol data unit), the number of bytes polled, and the maximum The number of retransmissions. Among them, AM is the confirmation mode, UM is the non-confirmation mode, for the non-confirmation mode, the RLC entity is unidirectional, each has a sending entity and a receiving entity, and independently complete the data transmission and reception; and for the confirmation mode, RLC The entity is bidirectional. Although there is only one entity, it is divided into receiving side and transmitting side to complete the function of sending and receiving data, and they can communicate with each other. Among them, the first type of RLC information may be: whether the configuration of the RLC entity is RLCAM or RLCUM, the length of the RLCSN; the second type of RLC information may be: the length of the reassembly timer, the length of the status report prohibit timer; the third type of RLC information It can be: the length of the polling retransmission timer, the number of polling PDU (ProtocolDataUnit, protocol data unit), the number of bytes polled, and the maximum number of retransmissions.

Optionally, according to the configuration information of the first side link radio bearer included in the message 1, the second terminal device establishes the first side link radio bearer. In step 840, the second terminal device sends the message A (that is, an example of the seventh message) to the base station.

Optionally, the message A includes the device identifier of the first terminal device and the identifier of the first side link radio bearer.

The device identifier of the first terminal device or the identifier of the first side link radio bearer is used to tell the base station that the second terminal device has established the first side link radio bearer with the first terminal device. Two terminal devices are configured with wireless bearers.

In step 420, the first terminal device receives a message 2 (ie, an example of a second message) sent by the second terminal device, where the message 2 is used to instruct the second terminal device to complete the first sidelink radio bearer Configure or reconfigure.

Optionally, the message 2 and the message A may also be transmitted through the second side link wireless bearer.

Situation 4

Exemplarily, in a case where the RRC state of the first terminal device is the RRC idle state or the RRC inactive state and the RRC state of the second terminal device is the RRC connected state, or the first terminal device is out of coverage, and the first When the second terminal device is within the coverage area, step 410, step 850 to step 890 are executed.

Exemplarily, the message 1 may include QoS information corresponding to the first side link radio bearer, and the QoS information includes QoS parameters, or a QoS index indicating the QoS parameters, or an identification of the QoS flow.

For the QoS flow, each service packet has its corresponding QoS parameter, and the QoS flow may be multiple service packets, which have the same QoS parameter.

In step 850, the second terminal device sends a message B (that is, an example of an eighth message) to the base station. The message B includes the Qos information corresponding to the first side link radio bearer.

In step 860, the base station configures the corresponding first side link radio bearer according to the Qos information corresponding to the first side link radio bearer in message B.

Message B also includes destination information and/or source information associated with the first sidelink radio bearer.

In step 870, the second terminal device receives the RRC reconfiguration message sent by the base station. The RRC reconfiguration message is the configuration information of the first side link radio bearer.

Optionally, the RRC reconfiguration message further includes destination information and/or source information associated with the first sidelink radio bearer.

In step 880, the first terminal device receives the message 8 (that is, an example of the second message) sent by the second terminal device, and the message 8 includes configuration information of the first side link radio bearer.

Optionally, the message 8 may further include: an identifier of the first sidelink radio bearer and destination information associated with the first sidelink radio bearer; or, an identifier of the first sidelink radio bearer and the first The source information associated with the side link radio bearer; or, the identifier of the first side link radio bearer, the source information associated with the first side link radio bearer, and the destination information.

In step 890, the second terminal device receives the message 9 (that is, an example of the fourth message) sent by the first terminal, and the message 9 is used to instruct the first terminal device to complete the configuration or reconfiguration of the first side link radio bearer .

The message 1, message 2, message 6, message 7, message 8, and message 9 may also be transmitted through the second side link radio bearer. Exemplarily, when the first terminal device communicates with the second terminal device, the first terminal device may trigger the first terminal terminal device to send a message 1 to the second terminal device in the following three ways, where the message 1 is an RRC message .

Way E

Method F

Way G

When the first terminal device communicates with the second terminal device, the two terminal devices first send their coverage and RRC status to each other, thereby giving priority to the terminal device in the connected state, so that the terminal device will send from another terminal device The QoS information is sent to the base station accessed by the terminal device, and the configuration information of the first side link radio bearer corresponding to the QoS information is obtained from the base station. At this time, the terminal device also needs to send the configuration information of the first side link radio bearer to another terminal device, so as to ensure that both the first terminal device and the second terminal device are used as the sending side and the receiving side, respectively. The first side link wireless bearer ensures the consistency of the side link wireless bearer of the receiving terminal device and the sending side terminal device.

9 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device 900 may include:

Processing unit 910 and transceiver unit 920.

The processing unit 910 is used to control the transceiver unit 920 to send a first message to the second terminal device, where the first message is used to instruct the second terminal device to configure or reconfigure the first side link radio bearer with the first terminal device .

The processing unit 910 is further configured to control the transceiver unit 920 to receive a second message sent by a second terminal device, where the second message is used to instruct the second terminal device to complete the configuration or reconfiguration of the first sidelink radio bearer Or the second message includes configuration information of the first sidelink radio bearer.

Optionally, the first message includes configuration information of the first side link radio bearer, or the first message includes QoS information corresponding to the first side link radio bearer.

Optionally, the first message further includes source information and/or destination information associated with the first sidelink radio bearer.

Optionally, the first message includes configuration information of the first side link radio bearer, and the configuration information of the first side link radio bearer may include at least one of the following information:

The identification of the radio bearer on the first side link;

The identifier of the first logical channel corresponding to the first side link radio bearer;

Configuration information of a packet data aggregation protocol PDCP entity, where the PDCP entity is a PDCP entity that is carried by the first side link radio bearer, and the PDCP entity is a PDCP entity corresponding to the first logical channel. The configuration information of the PDCP entity may include the first type PDCP information and the second type PDCP information, where the first type PDCP information is PDCP information used for both the sending side and the receiving side, that is, the first type PDCP information is The terminal device as the PDCP information required by the sending side is also the PDCP information required by the other terminal device as the receiving side; the second type of PDCP information is the PDCP information for the receiving side, that is, the second type of PDCP information is The terminal device only serves as the PDCP information required by the receiving side; the configuration information of the PDCP entity also includes the third type of PDCP information. The third type of PDCP information is the PDCP information for the transmitting side, that is, the third type of PDCP information is The terminal device serves only as the PDCP information required by the transmitting side.

Optionally, when the first condition is satisfied, the first message includes configuration information of the first side link radio bearer; the first condition includes any one of the following conditions:

The RRC state of the radio resource control of the first terminal device is the RRC connected state and the RRC state of the second terminal device is the RRC connected state;

The first terminal device is within the coverage, and the second terminal device is outside the coverage.

If the RRC state of the first terminal device is the RRC connected state and the RRC state of the second terminal device is the RRC connected state, the first message further includes the device identification of the first terminal device.

Optionally, the first message includes QoS information corresponding to the first side link radio bearer, and the QoS information includes QoS parameters, or a QoS index indicating the QoS parameters, or an identifier of the QoS flow.

Optionally, the QoS information corresponding to the first side link radio bearer further includes at least one of the following information:

The identification of the radio bearer on the first side link;

When the second condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the second condition includes any one of the following conditions:

The first terminal device is outside the coverage, and the second terminal device is outside the coverage;

The RRC state of the first terminal device is the RRC idle state or the RRC inactive state and the serving cell of the second terminal device is the same as the serving cell of the first terminal device.

The processing unit 910 is further configured to control the transceiver unit 920 to receive a third message sent by the second terminal device, where the third message includes first information, and the first information is used to indicate coverage of the second terminal, and the coverage includes coverage. IC within the scope and OOC outside the coverage.

When the coverage of the second terminal is within the coverage, the third message also includes second information, which is used to indicate the cell identity of the serving cell of the second terminal device or the serving cell of the second terminal device Cell ID and frequency of serving cell.

When the third condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the third condition includes any one of the following conditions:

The RRC state of the first terminal device is the RRC idle state or the RRC inactive state and the RRC state of the second terminal device is the RRC connected state;

The first terminal device is outside the coverage, and the second terminal device is within the coverage.

Optionally, the second message includes configuration information of the first side link radio bearer, and the second message further includes an identifier of the first side link radio bearer and the first side link radio bearer are associated Destination information; or the second message further includes: the identifier of the first side link radio bearer and source information associated with the first side link radio bearer; or the second message further includes : An identifier of the first side link radio bearer, source information and destination information associated with the first side link radio bearer.

The processing unit 910 is further configured to control the transceiver unit 920 to send a fourth message to the second terminal device, where the fourth message is used to instruct the first terminal device to complete the configuration or reconfiguration of the first sidelink radio bearer Match.

The processing unit 910 is also used to control the transceiver unit 920 to receive the fifth message sent by the second terminal device. The fifth message includes at least one of the following information:

The processing unit 910 is also used to control the sixth message sent by the transceiver unit 920 to the second terminal device. The fifth message includes at least one of the following information:

The communication device 900 provided by the present application may correspond to the process performed by the first terminal device in the method embodiments of FIGS. 4 to 8 described above. For the functions of each unit/module in the communication device, reference may be made to the description above, and the detailed description is appropriately omitted here. description.

FIG. 10 is a schematic structural diagram of a communication device according to another embodiment of the present application. The communication device 1000 may include:

Processing unit 1010 and transceiver unit 1020.

The processing unit 1010 is used to control the transceiver unit 1020 to receive the first message sent by the first terminal device, the first message is used to instruct the second terminal device to configure or reconfigure the first side link wirelessly with the first terminal device Bearer.

The processing unit 1010 is also used to control the transceiver unit 1020 to send a second message to the first terminal device. The second message is used to instruct the second terminal device to complete the configuration or reconfiguration of the first side link radio bearer, or the second The message includes configuration information of the first side link radio bearer.

The first message includes configuration information of the first side link radio bearer, or the first message includes QoS information corresponding to the first side link radio bearer.

The first message also includes source information and/or destination information associated with the first sidelink radio bearer.

The first message includes configuration information of the first side link radio bearer, and the configuration information of the first side link radio bearer includes at least one of the following information:

The identification of the radio bearer on the first side link;

When the first condition is satisfied, the first message includes configuration information of the first sidelink radio bearer; the first condition includes any one of the following conditions:

The radio resource control RRC state of the first terminal device is an RRC connected state and the RRC state of the second terminal device is an RRC connected state;

The first terminal device is within the coverage range, and the second terminal device is outside the coverage range.

In the case where the RRC state of the first terminal device is the RRC connected state and the RRC state of the second terminal device is the RRC connected state, the first message further includes the device identification of the first terminal device.

The processing unit 1010 is also used to control the transceiver unit 1020 to send a seventh message to the base station. The seventh message may include the device identification of the first terminal device and the identification of the first sidelink radio bearer.

The first message includes QoS information corresponding to the first side link radio bearer. The QoS information includes QoS parameters, or a QoS index indicating the QoS parameters, or an identifier of the QoS flow.

The QoS information corresponding to the first side link radio bearer also includes at least one of the following information:

The identification of the radio bearer on the first side link;

When the second condition is satisfied, the message 1 includes the QoS information corresponding to the first side link radio bearer; the second condition includes any one of the following conditions:

The processing unit 1010 is further configured to determine the configuration information of the first side link radio bearer according to the QoS information corresponding to the first side link radio bearer.

Optionally, the processing unit 1010 is further configured to determine the configuration information of the first side link radio bearer according to the message 1 and the QoS information, where the first mapping relationship is used to indicate that the first side link radio bearer corresponds to The mapping relationship between the multiple QoS information including the QoS information and the configuration information of the multiple side link radio bearers including the first side link radio bearer.

The processing unit 1010 is used to control the receiving unit 1020 to send a third message to the first terminal device. The third message includes the first information. The first information is used to indicate the coverage of the second terminal. The coverage includes the IC in the coverage area And OOC outside the coverage.

When the third condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the third condition includes any one of the following conditions: the RRC state of the first terminal device is the RRC idle state or RRC The inactive state and the RRC state of the second terminal device are the RRC connected state; the first terminal device is out of coverage, and the second terminal device is in coverage.

The processing unit 1010 is configured to control the receiving unit 1020 to send an eighth message to the base station. The eighth message includes Qos information corresponding to the first side link radio bearer.

The processing unit 1010 is used to control the receiving unit 1020 to receive the RRC reconfiguration message sent by the base station.

The eighth message also includes source information and/or destination information associated with the first sidelink radio bearer.

The RRC reconfiguration message also includes source information and/or destination information associated with the first sidelink radio bearer.

The second message includes configuration information of the first side-link radio bearer, and the second message further includes: an identifier of the first side-link radio bearer and destination information associated with the first side-link radio bearer Or the second message further includes: the identifier of the first side link radio bearer and the source information associated with the first side link radio bearer; or the second message further includes: the An identifier of the first side link radio bearer, source information and destination information associated with the first side link radio bearer.

The processing unit 1010 is used to control the receiving unit 1020 to receive the fourth message sent by the first terminal, and the fourth message is used to instruct the first terminal device to complete the configuration or reconfiguration of the first side link radio bearer.

The processing unit 1010 is used to control the receiving unit 1020 to send a fifth message to the first terminal device, the fifth message includes at least one of the following information: third information, the third information is used to indicate the coverage of the second terminal device , The coverage includes IC within the coverage and OOC outside the coverage; fourth information, the fourth information is used to indicate whether the RRC state of the second terminal device is the connected state.

The processing unit 1010 is used to control the receiving unit 1020 to receive the sixth message sent by the first terminal device, the sixth message includes at least one of the following information: fifth information, the fifth information is used to indicate coverage of the first terminal device Situation, the coverage situation includes the IC within the coverage and the OOC outside the coverage; sixth information, the sixth information is used to indicate whether the RRC state of the first terminal device is the connected state.

The first message, the second message, the third message, the fourth message, the fifth message, the sixth message, the seventh message, and the eighth message are all transmitted through the second side link radio bearer, where the second side line The configuration of the wireless link bearer is the default configuration or a predefined configuration.

The communication device 1000 provided by the present application may correspond to the process performed by the second terminal device in the method embodiments of FIGS. 4 to 8 described above. For the functions of each unit/module in the communication device, reference may be made to the description above, and the details are omitted here as appropriate description.

FIG. 11 is a schematic structural diagram of a communication device according to another embodiment of the present application. The communication device 1100 may include:

Processing unit 1110 and transceiver unit 1120.

The processing unit 1110 is used to control the transceiver unit 1120 to receive a seventh message sent by the second terminal device, where the seventh message includes the device identification of the first terminal device and the identification of the first sidelink radio bearer.

The processing unit 1110 is further configured to control the transceiver unit 1120 to receive an eighth message sent by the second terminal device, where the eighth message includes Qos information corresponding to the first side link radio bearer.

The processing unit 1110 is further configured to configure the corresponding first side link radio bearer according to the Qos information corresponding to the first side link radio bearer in the eighth message.

The processing unit 1110 is also used to control the transceiver unit 1120 to send an RRC reconfiguration message to the second terminal device.

The communication device 1100 provided by the present application may correspond to the process performed by the base station in the method embodiments of FIGS. 4 to 9 described above. For the functions of each unit/module in the communication device, reference may be made to the description above, and the detailed description is appropriately omitted here.

Embodiments of the present application also provide a computer-readable medium that stores a computer program (also may be referred to as code or instructions) when it runs on a computer, causing the computer to perform any of the above method embodiments The method.

An embodiment of the present application also provides a chip system, including a memory and a processor, the memory is used to store a computer program, the processor is used to call and run the computer program from the memory, so that the communication device installed with the chip system is executed The method in any of the above method embodiments.

An embodiment of the present application further provides a communication system, including: a communication device for performing the method in any of the foregoing embodiments.

Those of ordinary skill in the art may realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application of the technical solution and design constraints. Professional technicians 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.

Those skilled in the art can clearly understand that for the convenience and conciseness of the description, the specific working processes of the above-described systems, devices, and units can refer to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical, or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application essentially or part of the contribution to the existing technology or 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, including Several instructions are used to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. The foregoing storage media include various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

The above is only the specific implementation of this application, but the scope of protection of this application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A wireless bearer configuration method, including:

The first terminal device sends a first message to the second terminal device, where the first message is used to instruct the second terminal device to configure or reconfigure the first side link radio bearer with the first terminal device;

The first terminal device receives a second message sent by the second terminal device, where the second message is used to instruct the second terminal device to complete the configuration or reconfiguration of the first side link radio bearer, Or the second message includes configuration information of the first side link radio bearer.
The method according to claim 1, wherein the first message includes configuration information of the first side link radio bearer, or

The first message includes QoS information corresponding to the first side link radio bearer.
The method according to claim 2, wherein

The first message also includes source information and/or destination information associated with the first sidelink radio bearer.
The method according to claim 2 or 3, wherein the first message includes configuration information of the first side link radio bearer, and the configuration information of the first side link radio bearer includes the following information At least one of:

The identifier of the first side link wireless bearer;

The identifier of the first logical channel corresponding to the first side link radio bearer;

Configuration information of a packet data aggregation protocol PDCP entity, where the PDCP entity is a PDCP entity that is wirelessly carried by the first side link, or the PDCP entity is a PDCP entity corresponding to the first logical channel;

Configuration information of a radio link control RLC bearer, where the RLC bearer is the RLC bearer corresponding to the first side link radio bearer, or the RLC bearer is the RLC bearer corresponding to the first logical channel .
The method according to claim 4, wherein the configuration information of the PDCP entity includes PDCP information of the first type and PDCP information of the second type;

The configuration information carried by the RLC includes RLC information of the first type and RLC information of the second type;

Wherein, the first type of PDCP information is PDCP information used for both the sending side and the receiving side; the second type of PDCP information is PDCP information used for the receiving side; and the first type RLC information is used for sending simultaneously RLC information on the receiving side and the receiving side; the second type of RLC information is RLC information on the receiving side.
The method according to claim 5, wherein the configuration information of the PDCP entity further includes a third type of PDCP information, and the third type of PDCP information is PDCP information for the sending side;

The configuration information carried by the RLC also includes a third type of RLC information, where the third type of RLC information is RLC information for the sending side.
The method according to claim 6, wherein, when the first condition is satisfied, the first message includes configuration information of the first sidelink radio bearer; the first condition includes any one of the following conditions Species:

The radio resource control RRC state of the first terminal device is an RRC connected state and the RRC state of the second terminal device is an RRC connected state; or,

The first terminal device is within the coverage range, and the second terminal device is outside the coverage range.
The method according to claim 7, wherein if the RRC state of the first terminal device is an RRC connected state and the RRC state of the second terminal device is an RRC connected state, the first message further includes the first terminal The device identification of the device.
The method according to claim 2 or 3, wherein the first message includes QoS information corresponding to the first side link radio bearer, the QoS information includes a QoS parameter, or a QoS index indicating the QoS parameter , Or QoS flow identification.
The method according to claim 9, wherein the QoS information corresponding to the first side link radio bearer further includes at least one of the following information:

The identifier of the first side link wireless bearer;

The identifier of the first logical channel corresponding to the first side link radio bearer.
The method according to claim 9 or 10, wherein, when the second condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the second condition includes the following condition Any one of:

The first terminal device is out of coverage, and the second terminal device is out of coverage;

The RRC state of the first terminal device is the RRC idle state or the RRC inactive state and the serving cell of the second terminal device is the same as the serving cell of the first terminal device.
The method according to claim 11, wherein before the first terminal device sends the first message to the second terminal device, the method further comprises:

The first terminal device receives a third message sent by the second terminal device, where the third message includes first information, and the first information is used to indicate the coverage of the second terminal, and the coverage The situation includes IC within coverage and OOC outside coverage.
The method according to claim 12, wherein, in the case where the coverage of the second terminal is within the coverage, the third message further includes second information, and the second information is used to indicate the first The cell ID of the serving cell of the terminal equipment, or

The cell identifier of the serving cell of the second terminal device and the frequency of the serving cell.
The method according to claim 9 or 10, wherein, when the third condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the third condition includes the following condition Any one of:

The RRC state of the first terminal device is an RRC idle state or an RRC inactive state and the RRC state of the second terminal device is an RRC connected state;

The first terminal device is out of coverage, and the second terminal device is in coverage.
The method according to claim 14, wherein the second message includes configuration information of the first side link radio bearer,

The second message further includes: an identifier of the first side link radio bearer and destination information associated with the first side link radio bearer; or

The second message further includes: an identifier of the first side link radio bearer and source information associated with the first side link radio bearer; or

The second message further includes: an identifier of the first side link radio bearer, source information associated with the first side link radio bearer, and destination information.
The method according to claim 14 or 15, wherein after the first terminal device receives the second message sent by the second terminal device, the method further comprises:

The first terminal device sends a fourth message to the second terminal, where the fourth message is used to instruct the first terminal device to complete the configuration or reconfiguration of the first side link radio bearer.
The method according to any one of claims 7, 8, and 14, wherein before the first terminal device sends the first message to the second terminal device, the method further includes:

The first terminal device receives a fifth message sent by the second terminal device, where the fifth message includes at least one of the following information:

Third information, the third information is used to indicate the coverage of the second terminal device, the coverage includes the IC within the coverage and the OOC outside the coverage;

Fourth information, the fourth information is used to indicate whether the RRC state of the second terminal device is a connected state.
The method according to claim 17, wherein before the first terminal device receives the fifth message sent by the second terminal device, the method further comprises:

The first terminal device sends a sixth message to the second terminal device, where the sixth message includes at least one of the following information:

Fifth information, the fifth information is used to indicate the coverage of the first terminal device, the coverage includes IC within the coverage and OOC outside the coverage;

Sixth information, the sixth information is used to indicate whether the RRC state of the first terminal device is a connected state.
The method according to claim 1, wherein the first message is an RRC message, and the first terminal device triggers to send the first message when any one of the following conditions is met:

The first terminal device determines that the first side link radio bearer needs to be established according to the first mapping relationship and the QoS information, where the first mapping relationship is used to indicate that the first side link is included Mapping relationship between multiple Qos information including the QoS information corresponding to the wireless radio bearer and configuration information of multiple side link radio bearers including the first side link radio bearer; or,

The first terminal device needs to modify the configuration information of the first side link radio bearer; or,

The first terminal device receives at least one of the following messages sent by the second terminal device: a side link connection establishment response message; a side link security activation response message; or,

The first terminal device receives a fourth message sent by the base station, where the fourth message is an RRC connection reconfiguration message.
The method of claim 19, wherein

The first message, the second message, the third message, the fourth message, the fifth message, and the sixth message are all transmitted through the second side link wireless bearer, wherein, The configuration of the second side radio link bearer is a default configuration or a predefined configuration.
A wireless bearer configuration method, including:

The second terminal device receives a first message sent by the first terminal device, where the first message is used to instruct the second terminal device to configure or reconfigure a first side link radio bearer with the first terminal device ;

The second terminal device sends a second message to the first terminal device, where the second message is used to instruct the second terminal device to complete the configuration or reconfiguration of the first side link radio bearer, or The second message includes configuration information of the first side link radio bearer.
The method according to claim 21, wherein the first message includes configuration information of the first side link radio bearer, or the first message includes corresponding to the first side link radio bearer QoS information.
The method of claim 22, wherein

The first message also includes source information and/or destination information associated with the first sidelink radio bearer.
The method according to claim 22 or 23, wherein the first message includes configuration information of the first side link radio bearer, and the configuration information of the first side link radio bearer includes the following information At least one of:

The identifier of the first side link wireless bearer;

The identifier of the first logical channel corresponding to the first side link radio bearer;

Configuration information of a packet data aggregation protocol PDCP entity, where the PDCP entity is a PDCP entity that is wirelessly carried by the first side link, or the PDCP entity is a PDCP entity corresponding to the first logical channel;

Configuration information of a radio link control RLC bearer, where the RLC bearer is the RLC bearer corresponding to the first side link radio bearer, or the RLC bearer is the RLC bearer corresponding to the first logical channel .
The method according to claim 24, wherein the configuration information of the PDCP entity includes PDCP information of the first type and PDCP information of the second type;

The configuration information carried by the RLC includes RLC information of the first type and RLC information of the second type;

Wherein, the first type of PDCP information is PDCP information used for both the sending side and the receiving side; the second type of PDCP information is PDCP information used for the receiving side; and the first type RLC information is used for sending simultaneously RLC information on the receiving side and the receiving side; the second type of RLC information is RLC information on the receiving side.
The method according to claim 25, wherein the configuration information of the PDCP entity further includes a third type of PDCP information, and the third type of PDCP information is PDCP information for the sending side;

The configuration information carried by the RLC also includes a third type of RLC information, where the third type of RLC information is RLC information for the sending side.
The method according to claim 26, wherein the method further comprises: when the first condition is satisfied, the first message includes configuration information of the first side link radio bearer; the first condition Include any of the following conditions:

The radio resource control RRC state of the first terminal device is an RRC connected state and the RRC state of the second terminal device is an RRC connected state; or,

The first terminal device is within the coverage range, and the second terminal device is outside the coverage range.
The method according to claim 27, wherein if the RRC state of the first terminal device is an RRC connected state and the RRC state of the second terminal device is an RRC connected state, the first message further includes the first The device identification of a terminal device.
The method according to claim 28, wherein the method further comprises: the second terminal device sending a seventh message to the base station, the seventh message including the device identification of the first terminal device and the first The identification of the radio bearer on the side link.
The method according to claim 22 or 23, wherein the first message includes QoS information corresponding to the first side link radio bearer, the QoS information includes a QoS parameter, or a QoS index indicating the QoS parameter , Or QoS flow identification.
The method according to claim 30, wherein the QoS information corresponding to the first side link radio bearer further includes at least one of the following information:

The identifier of the first side link wireless bearer;

The identifier of the first logical channel corresponding to the first side link radio bearer.
The method according to claim 30 or 31, wherein, when the second condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the second condition includes the following condition Any one of:

The first terminal device is out of coverage, and the second terminal device is out of coverage;

The RRC state of the first terminal device is the RRC idle state or the RRC inactive state and the serving cell of the second terminal device is the same as the serving cell of the first terminal device.
The method according to claim 32, further comprising: the second terminal device determining the configuration of the first side link radio bearer according to the QoS information corresponding to the first side link radio bearer information.
The method according to claim 33, the second terminal device determining the configuration information of the first side link radio bearer according to the QoS information corresponding to the first side link radio bearer includes:

The second terminal device determines the configuration information of the first side link radio bearer according to the message 1 and the QoS information, where the first mapping relationship is used to indicate that the first side link radio bearer is included A mapping relationship between a plurality of QoS information including corresponding QoS information and configuration information of a plurality of side link radio bearers including the first side link radio bearer.
The method according to claim 32, wherein, when the second condition is satisfied, before the second terminal device receives the first message sent by the first terminal device, the method further comprises:

The second terminal device sends a third message to the first terminal device, where the third message includes first information, the first information is used to indicate the coverage of the second terminal, and the coverage Including IC within coverage and OOC outside coverage.
The method according to claim 35,

When the coverage of the second terminal is within the coverage, the third message further includes second information, and the second information is used to indicate a cell identity of the serving cell of the second terminal device, or ,

The cell identifier of the serving cell of the second terminal device and the frequency of the serving cell.
The method according to claim 30 or 31, wherein, when the third condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the third condition includes the following condition Any one of:

The RRC state of the first terminal device is an RRC idle state or an RRC inactive state and the RRC state of the second terminal device is an RRC connected state; or,

The first terminal device is out of coverage, and the second terminal device is in coverage.
The method according to claim 37, wherein the method further comprises: the second terminal device sending an eighth message to the base station, the eighth message including the first side link radio bearer Qos information; the second terminal device receives the RRC reconfiguration message sent by the base station.
The method according to claim 38, wherein the eighth message further includes source information and/or destination information associated with the first sidelink radio bearer; the RRC reconfiguration message further includes the The source information and/or destination information associated with the first sideline radio bearer.
The method according to claim 37, wherein the second message includes configuration information of the first side link radio bearer,

The second message further includes: an identifier of the first side link radio bearer and destination information associated with the first side link radio bearer; or,

The second message further includes: an identifier of the first side link radio bearer and source information associated with the first side link radio bearer; or,

The second message further includes: an identifier of the first side link radio bearer, source information associated with the first side link radio bearer, and destination information.
The method according to claim 40, wherein after the second terminal device sends the second message to the first terminal device, further comprising:

The second terminal device receives a fourth message sent by the first terminal, where the fourth message is used to instruct the first terminal device to complete the configuration or reconfiguration of the first side link radio bearer.
The method according to any one of claims 28, 29, and 37, wherein before the second terminal device receives the first message sent by the first terminal device, the method further includes:

The second terminal device sends a fifth message to the first terminal device, where the fifth message includes at least one of the following information:

Third information, the third information is used to indicate the coverage of the second terminal device, the coverage includes IC within the coverage and OOC outside the coverage;

Fourth information, the fourth information is used to indicate whether the RRC state of the second terminal device is a connected state.
The method according to claim 42, before the second terminal device sends a fifth message to the first terminal device, further comprising:

The second terminal device receives a sixth message sent by the first terminal device, where the sixth message includes at least one of the following information:

Fifth information, the fifth information is used to indicate the coverage of the first terminal device, the coverage includes IC within the coverage and OOC outside the coverage;

Sixth information, the sixth information is used to indicate whether the RRC state of the first terminal device is a connected state.
The method of claim 43, wherein the first message, the second message, the third message, the fourth message, the fifth message, and the sixth message all pass the second The side link wireless bearer is used for transmission, wherein the configuration of the second side link wireless bearer is a default configuration or a predefined configuration.
A wireless bearer configuration method, including:

The base station receives a seventh message sent by the second terminal device, where the seventh message includes the device identifier of the first terminal device and the identifier of the first side link radio bearer.
A wireless bearer configuration method, including:

The base station receives an eighth message sent by the second terminal device, where the eighth message includes Qos information corresponding to the first side link radio bearer;

The base station configures the corresponding first side link radio bearer according to the Qos information corresponding to the first side link radio bearer in the eighth message; the base station sends RRC reconfiguration to the second terminal device news.
A terminal device includes a transceiver unit,

The transceiver unit is configured to send a first message to a second terminal device, where the first message is used to instruct the second terminal device to configure or reconfigure a first side link radio bearer with the terminal device ;

The transceiver unit is further configured to receive a second message sent by the second terminal device, where the second message is used to instruct the second terminal device to complete the configuration or reconfiguration of the first side link radio bearer Configuration, or the second message includes configuration information of the first side link radio bearer.
The terminal device according to claim 47, wherein the first message includes configuration information of the first side link radio bearer, or

The first message includes QoS information corresponding to the first side link radio bearer.
The terminal device according to claim 48, wherein

The first message also includes source information and/or destination information associated with the first sidelink radio bearer.
The terminal device according to claim 48 or 49, wherein the first message includes configuration information of the first side link radio bearer, and the configuration information of the first side link radio bearer includes the following information At least one of:

The identifier of the first side link wireless bearer;

The identifier of the first logical channel corresponding to the first side link radio bearer;

Configuration information of a packet data aggregation protocol PDCP entity, where the PDCP entity is a PDCP entity that is wirelessly carried by the first side link, or the PDCP entity is a PDCP entity corresponding to the first logical channel;

Configuration information of a radio link control RLC bearer, where the RLC bearer is the RLC bearer corresponding to the first side link radio bearer, or the RLC bearer is the RLC bearer corresponding to the first logical channel .
The terminal device according to claim 50, wherein the configuration information of the PDCP entity includes PDCP information of the first type and PDCP information of the second type;

The configuration information carried by the RLC includes RLC information of the first type and RLC information of the second type;

Wherein, the first type of PDCP information is PDCP information used for both the sending side and the receiving side; the second type of PDCP information is PDCP information used for the receiving side; and the first type RLC information is used for sending simultaneously RLC information on the receiving side and the receiving side; the second type of RLC information is RLC information on the receiving side.
The terminal device according to claim 51, wherein the configuration information of the PDCP entity further includes a third type of PDCP information, and the third type of PDCP information is PDCP information for the transmitting side;

The configuration information carried by the RLC also includes a third type of RLC information, where the third type of RLC information is RLC information for the sending side.
The terminal device according to claim 52, wherein, when the first condition is satisfied, the first message includes configuration information of the first sidelink radio bearer; the first condition includes any of the following conditions One:

The radio resource control RRC state of the terminal device is an RRC connected state and the RRC state of the second terminal device is an RRC connected state; or,

The terminal device is within the coverage range, and the second terminal device is outside the coverage range.
The terminal device according to claim 53, wherein, if the RRC state of the terminal device is an RRC connected state and the RRC state of the second terminal device is an RRC connected state, the first message further includes the terminal device Device identification.
The terminal device according to claim 48 or 49, wherein the first message includes QoS information corresponding to the first side link radio bearer, and the QoS information includes QoS parameters or QoS indicating QoS parameters Index, or identification of QoS flow.
The terminal device according to claim 55, wherein the QoS information corresponding to the first side link radio bearer further includes at least one of the following information:

The identifier of the first side link wireless bearer;

The identifier of the first logical channel corresponding to the first side link radio bearer.
The terminal device according to claim 55 or 56, wherein, when the second condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the second condition includes the following Any of the conditions:

The terminal device is outside the coverage, and the second terminal device is outside the coverage;

The RRC state of the terminal device is an RRC idle state or an RRC inactive state and the serving cell of the second terminal device is the same as the serving cell of the terminal device.
The terminal device according to claim 57, wherein

The transceiver unit is further configured to receive a third message sent by the second terminal device before sending the first message to the second terminal device, where the third message includes first information, and the first information is used In order to indicate the coverage of the second terminal, the coverage includes the IC within the coverage and the OOC outside the coverage.
The terminal device according to claim 58, wherein, in the case where the coverage of the second terminal is within the coverage, the third message further includes second information, and the second information is used to indicate the The cell identifier of the serving cell of the second terminal device, or

The cell identifier of the serving cell of the second terminal device and the frequency of the serving cell.
The terminal device according to claim 55 or 56, wherein, when the third condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the third condition includes the following Any of the conditions:

The RRC state of the terminal device is an RRC idle state or an RRC inactive state and the RRC state of the second terminal device is an RRC connected state;

The terminal device is out of coverage, and the second terminal device is in coverage.
The terminal device according to claim 60, wherein the second message includes configuration information of the first side link radio bearer,

The second message further includes: an identifier of the first side link radio bearer and destination information associated with the first side link radio bearer; or

The second message further includes: an identifier of the first side link radio bearer and source information associated with the first side link radio bearer; or

The second message further includes: an identifier of the first side link radio bearer, source information associated with the first side link radio bearer, and destination information.
The terminal device according to claim 60 or 61, wherein after the terminal device receives the second message sent by the second terminal device, further comprising:

The transceiver unit is further configured to send a fourth message to the second terminal, where the fourth message is used to instruct the terminal device to complete the configuration or reconfiguration of the first side link radio bearer.
The terminal device according to any one of claims 53, 54, and 60, wherein

The transceiver unit is further configured to receive a fifth message sent by the second terminal device before the terminal device sends the first message to the second terminal device, where the fifth message includes the following information At least one item:

Third information, the third information is used to indicate the coverage of the second terminal device, the coverage includes the IC within the coverage and the OOC outside the coverage;

Fourth information, the fourth information is used to indicate whether the RRC state of the second terminal device is a connected state.
The terminal device according to claim 63, wherein

The transceiver unit is further configured to send a sixth message to the second terminal device before receiving the fifth message sent by the second terminal device, where the sixth message includes at least one of the following information:

Fifth information, the fifth information is used to indicate the coverage of the terminal device, the coverage includes IC within the coverage and OOC outside the coverage;

Sixth information, the sixth information is used to indicate whether the RRC state of the terminal device is a connected state.
The terminal device according to claim 47, wherein the first message is an RRC message, and the terminal device triggers sending the first message when any one of the following conditions is met:

The terminal device determines that the first side link radio bearer needs to be established according to the first mapping relationship and the QoS information, where the first mapping relationship is used to indicate that the first side link radio is included Mapping relationship between multiple Qos information including corresponding QoS information and configuration information of multiple sidelink radio bearers including the first sidelink radio bearer; or,

The terminal device needs to modify the configuration information of the first side link radio bearer; or,

The terminal device receives at least one of the following messages sent by the second terminal device: a side link connection establishment response message; a side link security activation response message; or,

The terminal device receives a fourth message sent by the base station, where the fourth message is an RRC connection reconfiguration message.
The terminal device according to claim 65, wherein

The first message, the second message, the third message, the fourth message, the fifth message, and the sixth message are all transmitted through the second side link wireless bearer, wherein, The configuration of the second side radio link bearer is a default configuration or a predefined configuration.
A terminal device includes a transceiver unit,

The transceiver unit is configured to receive a first message sent by a first terminal device, where the first message is used to instruct the terminal device to configure or reconfigure a first side link wirelessly with the first terminal device Bear

The transceiver unit is further configured to send a second message to the first terminal device, where the second message is used to instruct the terminal device to complete the configuration or reconfiguration of the first side link radio bearer, or The second message includes configuration information of the first side link radio bearer.
The terminal device according to claim 67, wherein the first message includes configuration information of the first side link radio bearer, or the first message includes the first side link radio bearer Corresponding QoS information.
The terminal device according to claim 68, wherein

The first message also includes source information and/or destination information associated with the first sidelink radio bearer.
The terminal device according to claim 68 or 69, wherein the first message includes configuration information of the first side link radio bearer, and the configuration information of the first side link radio bearer includes the following information At least one of:

The identifier of the first side link wireless bearer;

The identifier of the first logical channel corresponding to the first side link radio bearer;

Configuration information of a packet data aggregation protocol PDCP entity, where the PDCP entity is a PDCP entity that is wirelessly carried by the first side link, or the PDCP entity is a PDCP entity corresponding to the first logical channel;

Configuration information of a radio link control RLC bearer, where the RLC bearer is the RLC bearer corresponding to the first side link radio bearer, or the RLC bearer is the RLC bearer corresponding to the first logical channel .
The terminal device according to claim 70, wherein the configuration information of the PDCP entity includes PDCP information of the first type and PDCP information of the second type;

The configuration information carried by the RLC includes RLC information of the first type and RLC information of the second type;

Wherein, the first type of PDCP information is PDCP information used for both the sending side and the receiving side; the second type of PDCP information is PDCP information used for the receiving side; and the first type RLC information is used for sending simultaneously RLC information on the receiving side and the receiving side; the second type of RLC information is RLC information on the receiving side.
The terminal device according to claim 71, wherein the configuration information of the PDCP entity further includes third-type PDCP information, and the third-type PDCP information is PDCP information for the transmitting side;

The configuration information carried by the RLC also includes a third type of RLC information, where the third type of RLC information is RLC information for the sending side.
The terminal device according to claim 72, wherein

When the first condition is satisfied, the first message includes configuration information of the first side link radio bearer; the first condition includes any one of the following conditions:

The radio resource control RRC state of the first terminal device is an RRC connected state and the RRC state of the terminal device is an RRC connected state; or,

The first terminal device is within the coverage range, and the terminal device is outside the coverage range.
The terminal device according to claim 73, wherein

If the RRC state of the first terminal device is the RRC connected state and the RRC state of the terminal device is the RRC connected state, the first message further includes the device identification of the first terminal device.
The terminal device according to claim 74, wherein

The transceiver unit is further configured to send a seventh message to the base station, where the seventh message includes the device identifier of the first terminal device and the identifier of the first side link wireless bearer.
The terminal device according to claim 68 or 69, wherein the first message includes QoS information corresponding to the first side link radio bearer, and the QoS information includes QoS parameters or QoS indicating QoS parameters Index, or identification of QoS flow.
The terminal device according to claim 76, wherein the QoS information corresponding to the first side link radio bearer further includes at least one of the following information:

The identifier of the first side link wireless bearer;

The identifier of the first logical channel corresponding to the first side link radio bearer.
The terminal device according to claim 76 or 77, wherein, when the second condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the second condition includes the following Any of the conditions:

The first terminal device is outside the coverage, and the terminal device is outside the coverage;

The RRC state of the first terminal device is the RRC idle state or the RRC inactive state and the serving cell of the terminal device is the same as the serving cell of the first terminal device.
The terminal device according to claim 78, further comprising: a processing unit configured to determine configuration information of the first side link radio bearer according to QoS information corresponding to the first side link radio bearer.
The terminal device according to claim 79, the processing unit is specifically configured to determine the configuration information of the first side link radio bearer according to the message 1 and the QoS information, wherein the first mapping relationship is used to Indicating a plurality of QoS information including QoS information corresponding to the first side link radio bearer and configuration information of a plurality of side link radio bearers including the first side link radio bearer Mapping relationship.
The terminal device according to claim 78, wherein

The transceiver unit is further configured to, if the second condition is met, send a third message to the first terminal device before receiving the first message sent by the first terminal device, where the third message includes the first information, The first information is used to indicate the coverage of the second terminal, and the coverage includes the IC within the coverage and the OOC outside the coverage.
The terminal device according to claim 81,

When the coverage of the second terminal is within the coverage, the third message further includes second information, and the second information is used to indicate a cell identifier of the serving cell of the terminal device, or,

The cell identifier of the serving cell of the terminal device and the frequency of the serving cell.
The terminal device according to claim 76 or 77, wherein, when the third condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the third condition includes the following Any of the conditions:

The RRC state of the first terminal device is an RRC idle state or an RRC inactive state and the RRC state of the terminal device is an RRC connected state; or,

The first terminal device is out of coverage, and the terminal device is in coverage.
The terminal device according to claim 83, wherein

The transceiving unit is further configured to send an eighth message to the base station, where the eighth message includes Qos information corresponding to the first side link wireless bearer;

The transceiver unit is also used to receive the RRC reconfiguration message sent by the base station.
The terminal device according to claim 84, wherein the eighth message further includes source information and/or destination information associated with the first sidelink radio bearer; the RRC reconfiguration message further includes all The source information and/or destination information associated with the first sidelink radio bearer.
The terminal device according to claim 83, wherein the second message includes configuration information of the first side link radio bearer,

The second message further includes: an identifier of the first side link radio bearer and destination information associated with the first side link radio bearer; or,

The second message further includes: an identifier of the first side link radio bearer and source information associated with the first side link radio bearer; or,

The second message further includes: an identifier of the first side link radio bearer, source information associated with the first side link radio bearer, and destination information.
The terminal device according to claim 86, wherein

The transceiver unit is further configured to receive a fourth message sent by the first terminal after sending the second message to the first terminal device, where the fourth message is used to instruct the first terminal device to complete The configuration or reconfiguration of the first side link radio bearer is described.
The terminal device according to any one of claims 74, 75, and 83, wherein

The transceiver unit is further configured to send a fifth message to the first terminal device before receiving the first message sent by the first terminal device, where the fifth message includes at least one of the following information:

Third information, the third information is used to indicate the coverage of the terminal device, the coverage includes IC within the coverage and OOC outside the coverage;

Fourth information, the fourth information is used to indicate whether the RRC state of the terminal device is a connected state.
The terminal device according to claim 67, wherein

The transceiver unit is configured to receive a sixth message sent by the first terminal device before sending a fifth message to the first terminal device, where the sixth message includes at least one of the following information:

Fifth information, the fifth information is used to indicate the coverage of the first terminal device, the coverage includes IC within the coverage and OOC outside the coverage;

Sixth information, the sixth information is used to indicate whether the RRC state of the first terminal device is a connected state.
The terminal device according to claim 89, wherein the first message, the second message, the third message, the fourth message, the fifth message, and the sixth message all pass the The two-side radio link bearer is used for transmission, wherein the configuration of the second-side radio link bearer is a default configuration or a predefined configuration.
A terminal device, including a transceiver,

The transceiver is used to send a first message to a second terminal device, where the first message is used to instruct the second terminal device to configure or reconfigure a first side link radio bearer with the terminal device ;

The transceiver is further configured to receive a second message sent by the second terminal device, where the second message is used to instruct the second terminal device to complete the configuration or reconfiguration of the first side link radio bearer Configuration, or the second message includes configuration information of the first side link radio bearer.
The terminal device according to claim 91, wherein the first message includes configuration information of the first side link radio bearer, or

The first message includes QoS information corresponding to the first side link radio bearer.
The terminal device according to claim 92, wherein

The first message also includes source information and/or destination information associated with the first sidelink radio bearer.
The terminal device according to claim 92 or 93, wherein the first message includes configuration information of the first side link radio bearer, and the configuration information of the first side link radio bearer includes the following information At least one of:

The identifier of the first side link wireless bearer;

The identifier of the first logical channel corresponding to the first side link radio bearer;

Configuration information of a packet data aggregation protocol PDCP entity, where the PDCP entity is a PDCP entity that is wirelessly carried by the first side link, or the PDCP entity is a PDCP entity corresponding to the first logical channel;

Configuration information of a radio link control RLC bearer, where the RLC bearer is the RLC bearer corresponding to the first side link radio bearer, or the RLC bearer is the RLC bearer corresponding to the first logical channel .
The terminal device according to claim 91, wherein the configuration information of the PDCP entity includes PDCP information of the first type and PDCP information of the second type;

The configuration information carried by the RLC includes RLC information of the first type and RLC information of the second type;

Wherein, the first type of PDCP information is PDCP information used for both the sending side and the receiving side; the second type of PDCP information is PDCP information used for the receiving side; and the first type RLC information is used for sending simultaneously RLC information on the receiving side and the receiving side; the second type of RLC information is RLC information on the receiving side.
The terminal device according to claim 95, wherein the configuration information of the PDCP entity further includes third-type PDCP information, and the third-type PDCP information is PDCP information for the transmitting side;

The configuration information carried by the RLC also includes a third type of RLC information, where the third type of RLC information is RLC information for the sending side.
The terminal device according to claim 96, wherein, when the first condition is satisfied, the first message includes configuration information of the first side link radio bearer; the first condition includes any of the following conditions One:

The radio resource control RRC state of the terminal device is an RRC connected state and the RRC state of the second terminal device is an RRC connected state; or,

The terminal device is within the coverage range, and the second terminal device is outside the coverage range.
The terminal device according to claim 97, wherein, if the RRC state of the terminal device is an RRC connected state and the RRC state of the second terminal device is an RRC connected state, the first message further includes the terminal device Device identification.
The terminal device according to claim 92 or 93, wherein the first message includes QoS information corresponding to the first side link radio bearer, and the QoS information includes QoS parameters or QoS indicating QoS parameters Index, or identification of QoS flow.
The terminal device according to claim 99, wherein the QoS information corresponding to the first side link radio bearer further includes at least one of the following information:

The identifier of the first side link wireless bearer;

The identifier of the first logical channel corresponding to the first side link radio bearer.
The terminal device according to claim 99 or 100, wherein, when the second condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the second condition includes the following Any of the conditions:

The terminal device is outside the coverage, and the second terminal device is outside the coverage;

The RRC state of the terminal device is an RRC idle state or an RRC inactive state and the serving cell of the second terminal device is the same as the serving cell of the terminal device.
The terminal device according to claim 101, wherein

The transceiver is further configured to receive a third message sent by the second terminal device before sending the first message to the second terminal device, the third message includes first information, and the first information is used In order to indicate the coverage of the second terminal, the coverage includes the IC within the coverage and the OOC outside the coverage.
The terminal device according to claim 102, wherein, in the case where the coverage of the second terminal is within the coverage, the third message further includes second information, and the second information is used to indicate the The cell identifier of the serving cell of the second terminal device, or

The cell identifier of the serving cell of the second terminal device and the frequency of the serving cell.
The terminal device according to claim 99 or 100, wherein, when the third condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the third condition includes the following Any of the conditions:

The RRC state of the terminal device is an RRC idle state or an RRC inactive state and the RRC state of the second terminal device is an RRC connected state;

The terminal device is out of coverage, and the second terminal device is in coverage.
The terminal device according to claim 104, wherein the second message includes configuration information of the first side link radio bearer,

The second message further includes: an identifier of the first side link radio bearer and destination information associated with the first side link radio bearer; or

The second message further includes: an identifier of the first side link radio bearer and source information associated with the first side link radio bearer; or

The second message further includes: an identifier of the first side link radio bearer, source information associated with the first side link radio bearer, and destination information.
The terminal device according to claim 104 or 105, wherein after the terminal device receives the second message sent by the second terminal device, further comprising:

The transceiver is further configured to send a fourth message to the second terminal, where the fourth message is used to instruct the terminal device to complete the configuration or reconfiguration of the first side link radio bearer.
The terminal device according to any one of claims 97, 98, and 104, wherein

The transceiver is further configured to receive a fifth message sent by the second terminal device before the terminal device sends the first message to the second terminal device, where the fifth message includes the following information At least one item:

Third information, the third information is used to indicate the coverage of the second terminal device, the coverage includes the IC within the coverage and the OOC outside the coverage;

Fourth information, the fourth information is used to indicate whether the RRC state of the second terminal device is a connected state.
The terminal device according to claim 107, wherein

The transceiver is further configured to send a sixth message to the second terminal device before receiving the fifth message sent by the second terminal device, where the sixth message includes at least one of the following information:

Fifth information, the fifth information is used to indicate the coverage of the terminal device, the coverage includes IC within the coverage and OOC outside the coverage;

Sixth information, the sixth information is used to indicate whether the RRC state of the terminal device is a connected state.
The terminal device according to claim 91, wherein the first message is an RRC message, and the terminal device triggers sending the first message when any one of the following conditions is met:

The terminal device determines that the first side link radio bearer needs to be established according to the first mapping relationship and the QoS information, where the first mapping relationship is used to indicate that the first side link radio is included Mapping relationship between multiple Qos information including corresponding QoS information and configuration information of multiple sidelink radio bearers including the first sidelink radio bearer; or,

The terminal device needs to modify the configuration information of the first side link radio bearer; or,

The terminal device receives at least one of the following messages sent by the second terminal device: a side link connection establishment response message; a side link security activation response message; or,

The terminal device receives a fourth message sent by the base station, where the fourth message is an RRC connection reconfiguration message.
The terminal device according to claim 109, wherein

The first message, the second message, the third message, the fourth message, the fifth message, and the sixth message are all transmitted through the second side link wireless bearer, wherein, The configuration of the second side radio link bearer is a default configuration or a predefined configuration.
A terminal device, including a transceiver,

The transceiver is configured to receive a first message sent by a first terminal device, where the first message is used to instruct the terminal device to configure or reconfigure a first side link wirelessly with the first terminal device Bear

The transceiver is also used to send a second message to the first terminal device, where the second message is used to instruct the terminal device to complete the configuration or reconfiguration of the first side link radio bearer, or The second message includes configuration information of the first side link radio bearer.
The terminal device according to claim 111, wherein the first message includes configuration information of the first side link radio bearer, or the first message includes the first side link radio bearer Corresponding QoS information.
The terminal device according to claim 112, wherein

The first message also includes source information and/or destination information associated with the first sidelink radio bearer.
The terminal device according to claim 112 or 113, wherein the first message includes configuration information of the first side link radio bearer, and the configuration information of the first side link radio bearer includes the following information At least one of:

The identifier of the first side link wireless bearer;

The identifier of the first logical channel corresponding to the first side link radio bearer;

Configuration information of a packet data aggregation protocol PDCP entity, where the PDCP entity is a PDCP entity that is wirelessly carried by the first side link, or the PDCP entity is a PDCP entity corresponding to the first logical channel;

Configuration information of a radio link control RLC bearer, where the RLC bearer is the RLC bearer corresponding to the first side link radio bearer, or the RLC bearer is the RLC bearer corresponding to the first logical channel .
The terminal device according to claim 114, wherein the configuration information of the PDCP entity includes PDCP information of the first type and PDCP information of the second type;

The configuration information carried by the RLC includes RLC information of the first type and RLC information of the second type;

Wherein, the first type of PDCP information is PDCP information used for both the sending side and the receiving side; the second type of PDCP information is PDCP information used for the receiving side; and the first type RLC information is used for sending simultaneously RLC information on the receiving side and the receiving side; the second type of RLC information is RLC information on the receiving side.
The terminal device according to claim 115, wherein the configuration information of the PDCP entity further includes a third type of PDCP information, and the third type of PDCP information is PDCP information for the transmitting side;

The configuration information carried by the RLC also includes a third type of RLC information, where the third type of RLC information is RLC information for the sending side.
The terminal device according to claim 116, wherein

When the first condition is satisfied, the first message includes configuration information of the first side link radio bearer; the first condition includes any one of the following conditions:

The radio resource control RRC state of the first terminal device is an RRC connected state and the RRC state of the terminal device is an RRC connected state; or,

The first terminal device is within the coverage range, and the terminal device is outside the coverage range.
The terminal device according to claim 117, wherein

If the RRC state of the first terminal device is the RRC connected state and the RRC state of the terminal device is the RRC connected state, the first message further includes the device identification of the first terminal device.
The terminal device according to claim 118, wherein

The transceiver is further configured to send a seventh message to the base station, where the seventh message includes the device identifier of the first terminal device and the identifier of the first side link wireless bearer.
The terminal device according to claim 112 or 113, wherein the first message includes QoS information corresponding to the first side link radio bearer, and the QoS information includes QoS parameters or QoS indicating QoS parameters Index, or identification of QoS flow.
The terminal device according to claim 120, wherein the QoS information corresponding to the first side link radio bearer further includes at least one of the following information:

The identifier of the first side link wireless bearer;

The identifier of the first logical channel corresponding to the first side link radio bearer.
The terminal device according to claim 120 or 121, wherein, when the second condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the second condition includes the following Any of the conditions:

The first terminal device is outside the coverage, and the terminal device is outside the coverage;

The RRC state of the first terminal device is the RRC idle state or the RRC inactive state and the serving cell of the terminal device is the same as the serving cell of the first terminal device.
The terminal device according to claim 122, further comprising: a processor, configured to determine configuration information of the first side link radio bearer according to QoS information corresponding to the first side link radio bearer.
The terminal device according to claim 123, the processor is specifically configured to determine the configuration information of the first side link radio bearer according to the message 1 and the QoS information, wherein the first mapping relationship is used to Indicating a plurality of QoS information including QoS information corresponding to the first side link radio bearer and configuration information of a plurality of side link radio bearers including the first side link radio bearer Mapping relationship.
The terminal device according to claim 122, wherein

The transceiver is further configured to send a third message to the first terminal device before receiving the first message sent by the first terminal device if the second condition is met, the third message includes the first information, The first information is used to indicate the coverage of the second terminal, and the coverage includes the IC within the coverage and the OOC outside the coverage.
The terminal device according to claim 125,

When the coverage of the second terminal is within the coverage, the third message further includes second information, and the second information is used to indicate a cell identifier of the serving cell of the terminal device, or,

The cell identifier of the serving cell of the terminal device and the frequency of the serving cell.
The terminal device according to claim 120 or 121, wherein, when the third condition is satisfied, the first message includes QoS information corresponding to the first side link radio bearer; the third condition includes the following Any of the conditions:

The RRC state of the first terminal device is an RRC idle state or an RRC inactive state and the RRC state of the terminal device is an RRC connected state; or,

The first terminal device is out of coverage, and the terminal device is in coverage.
The terminal device according to claim 127, wherein

The transceiver is further configured to send an eighth message to the base station, where the eighth message includes Qos information corresponding to the first side link radio bearer;

The transceiver is also used to receive the RRC reconfiguration message sent by the base station.
The terminal device according to claim 128, wherein the eighth message further includes source information and/or destination information associated with the first sidelink radio bearer; the RRC reconfiguration message further includes all The source information and/or destination information associated with the first sidelink radio bearer.
The terminal device according to claim 127, wherein the second message includes configuration information of the first side link radio bearer,

The second message further includes: an identifier of the first side link radio bearer and destination information associated with the first side link radio bearer; or,

The second message further includes: an identifier of the first side link radio bearer and source information associated with the first side link radio bearer; or,

The second message further includes: an identifier of the first side link radio bearer, source information associated with the first side link radio bearer, and destination information.
The terminal device according to claim 130, wherein

The transceiver is further configured to receive a fourth message sent by the first terminal after sending the second message to the first terminal device, where the fourth message is used to instruct the first terminal device to complete The configuration or reconfiguration of the first side link radio bearer is described.
The terminal device according to any one of claims 118, 119, and 127, wherein

The transceiver is further configured to send a fifth message to the first terminal device before receiving the first message sent by the first terminal device, where the fifth message includes at least one of the following information:

Third information, the third information is used to indicate the coverage of the terminal device, the coverage includes IC within the coverage and OOC outside the coverage;

Fourth information, the fourth information is used to indicate whether the RRC state of the terminal device is a connected state.
The terminal device according to claim 132, wherein

The transceiver is configured to receive a sixth message sent by the first terminal device before sending a fifth message to the first terminal device, where the sixth message includes at least one of the following information:

Fifth information, the fifth information is used to indicate the coverage of the first terminal device, the coverage includes IC within the coverage and OOC outside the coverage;

Sixth information, the sixth information is used to indicate whether the RRC state of the first terminal device is a connected state.
The terminal device according to claim 133, wherein the first message, the second message, the third message, the fourth message, the fifth message, and the sixth message all pass the The two-side radio link bearer is used for transmission, wherein the configuration of the second-side radio link bearer is a default configuration or a predefined configuration.
A base station includes: a transceiver unit,

The transceiver unit is configured to receive a seventh message sent by a second terminal device, where the seventh message includes the device identifier of the first terminal device and the identifier of the first sidelink wireless bearer.
A base station includes: a transceiver unit,

The transceiver unit is configured to receive an eighth message sent by a second terminal device, where the eighth message includes Qos information corresponding to the first side link radio bearer;

The processing unit is configured to configure the corresponding first side link radio bearer according to the Qos information corresponding to the first side link radio bearer in the eighth message; the base station sends the second terminal device Send RRC reconfiguration message.
A base station, including: a transceiver and a processor,

The transceiver is configured to receive a seventh message sent by a second terminal device under the control of the processor, where the seventh message includes the device identification of the first terminal device and the first sidelink wireless Bearer ID.
A base station, including: a transceiver and a processor,

The transceiver is configured to receive an eighth message sent by a second terminal device under the control of the processor, where the eighth message includes Qos information corresponding to the first side link radio bearer;

The processing unit is configured to configure the corresponding first side link radio bearer according to the Qos information corresponding to the first side link radio bearer in the eighth message; the base station sends the second terminal device Send RRC reconfiguration message.
A communication device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, when the processor executes the program, any one of claims 1 to 20 is implemented Item, or implement the method of any one of claims 21 to 44, or implement the method of any one of claims 44 or 45.
A computer-readable storage medium including instructions that when run on a computer, causes the computer to perform the method according to any one of claims 1 to 20, or causes the computer to perform any one of claims 21 to 44 Item, or causing a computer to execute the method of Claim 45 or 46.
A computer program product which, when run on a computer, causes a computer to perform the method according to any one of claims 1 to 20, or causes a computer to perform the method according to any one of claims 21 to 44 Or cause the computer to execute the method according to any one of claims 45 to 46.
A chip connected to a memory or including a memory for reading and executing a software program stored in the memory to implement the method according to any one of claims 1 to 20, or to implement a method according to any one of claims 21 to 20 The method according to any one of 44 or the method according to claim 45 or 46.
A communication system, including: a first terminal device and a second terminal device,

The first terminal device sends a first message to a second terminal device, where the first message is used to instruct the second terminal device to configure or reconfigure the first side link wirelessly with the first terminal device Bear

The first terminal device receives a second message sent by the second terminal device, where the second message is used to instruct the second terminal device to complete the configuration or reconfiguration of the first side link radio bearer, Or the second message includes configuration information of the first side link radio bearer;

The second terminal device receives the first message sent by the first terminal device, and sends a second message to the first terminal device.
The communication system according to claim 143, further comprising: a base station

The base station receives a seventh message sent by the second terminal device, where the seventh message includes the device identifier of the first terminal device and the identifier of the first sidelink radio bearer; or,

The base station receives an eighth message sent by the second terminal device, where the eighth message includes Qos information corresponding to the first side link radio bearer; according to the first side link radio bearer in the eighth message Corresponding Qos information is configured with a corresponding first side link radio bearer; the base station sends an RRC reconfiguration message to the second terminal device.