WO2020221281A1 - Procédé et appareil pour acquérir une configuration de porteuse radio - Google Patents

Procédé et appareil pour acquérir une configuration de porteuse radio Download PDF

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Publication number
WO2020221281A1
WO2020221281A1 PCT/CN2020/087703 CN2020087703W WO2020221281A1 WO 2020221281 A1 WO2020221281 A1 WO 2020221281A1 CN 2020087703 W CN2020087703 W CN 2020087703W WO 2020221281 A1 WO2020221281 A1 WO 2020221281A1
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WIPO (PCT)
Prior art keywords
terminal device
radio bearer
drb
qos
configuration information
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PCT/CN2020/087703
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English (en)
Chinese (zh)
Inventor
李翔宇
肖潇
彭文杰
刘菁
王君
戴明增
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华为技术有限公司
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Publication of WO2020221281A1 publication Critical patent/WO2020221281A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • the present application relates to the field of communications, and more specifically, to a method and apparatus for obtaining radio bearer configuration.
  • V2X Vehicles
  • LTE Long Term Evolution
  • Uu interface Uu interface
  • the V2X PC5 interface is a direct communication interface between V2X UEs, and the direct communication link between V2X UEs is also defined as a side link or sidelink (SL);
  • V2X Uu interface communication is the sender’s V2X UE’s
  • V2X data is sent to the base station through the Uu interface, and then sent to the V2X application server through the base station for processing, and then sent by the V2X application server to the base station, and sent to the receiver through the base station.
  • the base station that forwards the uplink data from the UE to the server and the base station that forwards the downlink data that the server delivers to the receiver UE may be the same base station or different base stations, which may be specifically determined by the application server.
  • the SL RB configuration in LTE V2X is relatively simple, such as fixed PDCP SN length, RLC UM mode, etc. Therefore, communication on LTE PC5 does not require the sending Tx UE and the receiving Rx UE to exchange the configuration information of the SL RB.
  • the receiving UE is based on the source layer 2 identification (source L2ID), destination layer 2 identification (destination L2ID) and logical channel identification (LCH). ID) Pass the data to the upper layer of the corresponding protocol stack for processing.
  • LTE V2X only supports the UE to use one resource allocation mode at the same time.
  • NR V2X supports two resource configuration modes: mode 1 and mode 2.
  • NR V2X has agreed to support mode concurrency, that is, a UE can be in two modes at the same time.
  • mode concurrency that is, a UE can be in two modes at the same time.
  • SL DRB configuration in different modes.
  • the SL RB configuration in the prior art is to deliver all information about the SL RB to the UE, and the SL DRB configuration may contain many parameters. This method will bring about large signaling overhead and is not conducive to saving signaling overhead. .
  • the present application provides a method and device for obtaining radio bearer configuration, which can save signaling overhead.
  • a method for obtaining radio bearer configuration including: a first terminal device obtains side chain radio bearer configuration information, and the radio bearer configuration information includes the first side chain data radio bearer SL DRB corresponding The index corresponding to the first SL DRB has an associated relationship with the first parameter, and the first parameter includes the first quality of service QoS parameter and/or the first terminal device
  • the side chain is a wireless link between the first terminal device and the second terminal device; the side chain transmission is performed based on the radio bearer configuration information.
  • the first terminal device can obtain the standard-predefined configuration associated with the first SL DRB through the index corresponding to the SL DRB, thereby saving signaling overhead.
  • the resource configuration modes include mode 1 and mode 2.
  • the first terminal device is in a radio resource control RRC connected state
  • the method further includes: the first terminal device sends a first RRC message to the network device, the first RRC message It includes the first QoS parameter and first indication information, where the first indication information is used to indicate that the resource configuration mode corresponding to the first QoS parameter is mode 2. Therefore, the first terminal device can notify the network device of the resource configuration mode through the RRC message, so that the network device can configure the SL and DRB.
  • the first terminal device acquiring the radio bearer configuration information of the side chain includes: the first terminal device receives a second RRC message sent by the network device, and the second RRC message includes all In the radio bearer configuration information, the radio bearer configuration information is side chain radio bearer configuration information associated with the mode 2, or the radio bearer configuration information is side chain radio bearer configuration information associated with the mode 1. Therefore, the terminal device can obtain side-chain radio bearer configuration information associated with the resource configuration mode configured by the network device.
  • the first RRC message further includes second indication information, and the second indication information is used to indicate that the first QoS parameter is predefined by the standard or non-standard.
  • the method further includes: the access layer AS of the first terminal device receives the second indication information from the V2X layer or the APP layer of the first terminal device.
  • the first RRC message further includes a pre-configured SL DRB associated with the first QoS parameter, or the first RRC message further includes a route associated with the first QoS parameter.
  • the first terminal device receives the SL DRB obtained by receiving the SIB broadcast message. Therefore, the first terminal device may send the pre-configured SL DRB or the SL DRB obtained through the SIB to the network device for reference by the network device.
  • the first SL DRB includes a logical channel configuration, where the logical channel configuration includes a logical channel index, and the logical channel index is used to obtain the logical channel ID according to a preset rule. This can solve the problem of logical channel ID conflicts.
  • the first terminal device is in a radio resource control RRC idle state or in an inactive state, and the first terminal device obtains side chain radio bearer configuration information, including: the first terminal The device receives a system information block SIB broadcast message sent by a network device, where the SIB broadcast message includes the radio bearer configuration information; or, the first terminal device triggers the establishment of an RRC connection, and obtains the radio bearer configuration by receiving an RRC response message information. Therefore, the first terminal device can obtain the radio bearer configuration information sent by the network device through the SIB broadcast message.
  • the first QoS parameter is predefined by a standard.
  • the PC5 QoS flow identification PFI is predefined by the standard.
  • the first QoS parameter includes one or more of the following information: PC5 QoS flow identification PFI, PC5 fifth-generation communication system quality of service identification PQI, guaranteed flow bit rate GFBR, maximum Streaming bit rate MFBR, minimum required communication distance, allocation and reservation priority ARP.
  • a method for obtaining a radio bearer configuration including: a network device determines an index and a first parameter corresponding to the first side-chain data radio bearer SL DRB, and the index corresponding to the first SL DRB is compared with the first parameter.
  • the first parameter has an association relationship, where the first parameter includes the first quality of service QoS parameter and/or the resource configuration mode of the first terminal device; the network device sends the side chain information to the first terminal device Radio bearer configuration information, the radio bearer configuration information includes the index corresponding to the first SL DRB and the first parameter, and the side chain is the radio link between the first terminal device and the second terminal device road.
  • the first terminal device can obtain the standard-predefined configuration associated with the first SL DRB through the index corresponding to the SL DRB, thereby saving signaling overhead.
  • the sending of the radio bearer configuration information of the side chain by the network device includes: the network device receiving a first RRC message sent by a first terminal device, the first RRC message including the first RRC message A QoS parameter and first indication information, where the first indication information is used to indicate that the resource configuration mode corresponding to the first QoS parameter is mode 2; the network device sends a second RRC message to the first terminal device,
  • the second RRC message includes the radio bearer configuration information, the radio bearer configuration information is side-chain radio bearer configuration information associated with the mode 2, or the side-chain radio bearer configuration information is related to the mode 1.
  • the associated side chain radio bearer configuration information can configure the side chain radio bearer configuration information associated with the resource configuration mode for the first terminal device based on the resource configuration mode reported by the first terminal device.
  • the first RRC message further includes second indication information, and the second indication information is used to indicate that the first QoS parameter is predefined by the standard or non-standard.
  • the first RRC message further includes a pre-configured SL DRB associated with the first QoS parameter, and accordingly, the network device sends a message to the first terminal according to the pre-configured SL DRB
  • the device sends a second RRC message; or, the first RRC message further includes the first QoS parameter associated with the first QoS parameter obtained by the first terminal device by receiving the SIB broadcast message and associated with the first QoS parameter
  • the SL DRB correspondingly includes: the network device sends a second RRC message to the first terminal device according to the SL DRB obtained by the first terminal device through the SIB broadcast message. Therefore, the network device can refer to the SL DRB configuration reported by the first terminal device to configure the side chain radio bearer configuration information for the first terminal device.
  • the first SL DRB includes a logical channel configuration, where the logical channel configuration includes a logical channel index, and the logical channel index is used by the first terminal device to obtain the logical channel ID according to a preset rule .
  • This can solve the problem of logical channel ID conflicts.
  • the first terminal device is in a radio resource control RRC idle state or in an inactive state
  • the network device sending side chain radio bearer configuration information includes: the network device sending a system information block SIB broadcast message, where the SIB broadcast message includes the radio bearer configuration information. Therefore, the network device sends the radio bearer configuration information of the side chain through the SIB broadcast message.
  • a method for obtaining a quality of service QoS profile of a data packet including: the access AS layer of a terminal device obtains a PC5 QoS flow identifier PFI and a QoS profile, the PFI and the QoS configuration
  • the files have a corresponding relationship, where the QoS configuration file includes one or more of the following information: PC5 fifth-generation communication system service quality indicator PQI, guaranteed stream bit rate GFBR, maximum stream bit rate MFBR, and minimum required communication distance , Assign and reserve priority ARP;
  • the terminal device determines the QoS profile corresponding to the first data packet based on the corresponding relationship. Therefore, the terminal device can obtain the QoS configuration file corresponding to the data packet based on the corresponding relationship.
  • acquiring the correspondence between the PFI and the QoS configuration file by the AS layer of the terminal device includes: acquiring the correspondence between the V2X layer or the application APP layer of the terminal device from the core network, or acquiring the pre-configured The corresponding relationship; the access layer AS of the terminal device receives the corresponding relationship from the V2X layer or the APP layer of the terminal device.
  • a method for obtaining a data packet QoS configuration file including: the access layer AS of a terminal device receives a first data packet from the V2X layer or the APP layer of the terminal device, and the first The data packet carries the PC5 QoS flow identifier PFI associated with the first data packet, and the QoS configuration file associated with the first data packet; the terminal device obtains all the corresponding data from the first data packet.
  • the PFI and the QoS configuration file Therefore, by carrying the PC5 QoS flow identifier PFI and the QoS configuration file in each data packet, the terminal device can obtain the QoS configuration file through the data packet.
  • a communication device in a fifth aspect, includes a module for executing the method in the first aspect or any possible implementation of the first aspect, or for the third aspect or the third aspect.
  • the module of the method in any possible implementation manner of, or the module of the method in the foregoing fourth aspect or any possible implementation manner of the fourth aspect.
  • a communication device in a sixth aspect, includes a module for executing the foregoing second aspect or any possible implementation of the second aspect.
  • a communication device may be the terminal device in the above method design, or may be a chip set in the terminal device.
  • the communication device includes a processor, coupled with a memory, and can be used to execute instructions in the memory to implement the method executed by the terminal device in the first aspect and any one of its possible implementation manners, or to implement the third The method executed by the terminal device in the aspect and any one of its possible implementation manners, or to implement the method executed by the terminal device in the fourth aspect and any one of its possible implementation manners.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled with the communication interface.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a communication device may be a network device in the design of the above method, or a chip set in the network device.
  • the communication device includes a processor, which is coupled to a memory, and can be used to execute instructions in the memory to implement the method executed by the network device in the second aspect and any one of its possible implementation manners.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled with the communication interface.
  • the communication interface may be a transceiver or an input/output interface.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a program which, when executed by a processor, is used to execute any method in the first aspect, the third aspect, or the fourth aspect and possible implementation manners thereof.
  • a program is provided, when the program is executed by a processor, it is used to execute any method in the second aspect and its possible implementation manners.
  • a program product includes program code.
  • the program code is run by a communication unit, a processing unit or a transceiver, or a processor of a communication device (for example, a terminal device),
  • the communication device is caused to perform any method in the above-mentioned first aspect or third aspect or fourth aspect and possible implementation manners thereof.
  • a program product includes: program code, when the program code is run by a communication unit, a processing unit or a transceiver, or a processor of a communication device (for example, a network device), The communication device is caused to execute any method in the foregoing second aspect and its possible implementation manners.
  • a computer-readable storage medium stores a program.
  • a communication device for example, a terminal device
  • the communication device executes any method in the third aspect and its possible embodiments; or, the program is executed
  • the communication device is caused to execute any method in the foregoing fourth aspect and its possible implementation manners.
  • a computer-readable storage medium stores a program.
  • a communication device for example, a network device
  • a communication system for acquiring a radio bearer configuration including: a terminal device and a network device, the terminal device is used to execute any method in the first aspect and its possible implementation manners, The network device is used to execute any method in the foregoing second aspect and its possible implementation manners.
  • the communication system may further include other devices that interact or communicate with the terminal device and/or the network device.
  • Fig. 1 is an example diagram of a system architecture to which an embodiment of the present application is applied;
  • Fig. 2 is a schematic interaction diagram of a method for acquiring a radio bearer configuration according to an embodiment of the present application
  • Fig. 3 is a schematic flowchart of a method for obtaining a configuration file of a data packet according to an embodiment of the present application
  • Fig. 4 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • Fig. 6 is a schematic block diagram of a communication device according to another embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of a communication device according to another embodiment of the present application.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • LTE frequency division duplex FDD
  • TDD LTE Time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • the V2X system may specifically be any of the following systems: vehicle-to-network (V2N), vehicle-to-vehicle (V2V), vehicle-to-pedestrian (V2P), and Vehicle to infrastructure communication (V2I), etc.
  • V2N vehicle-to-network
  • V2V vehicle-to-vehicle
  • V2P vehicle-to-pedestrian
  • V2I Vehicle to infrastructure communication
  • V2N One participant of V2N is a terminal device, and the other participant is a service entity.
  • V2N is currently the most widely used form of car networking. Its main function is to connect vehicles to a cloud server through a mobile network, thereby providing navigation, entertainment, and anti-theft functions through the cloud server.
  • V2V can be used as a reminder of information interaction between vehicles, and the most typical application is for anti-collision safety systems between vehicles.
  • V2P can be used to provide safety warnings to pedestrians or non-motorized vehicles on the road.
  • V2I can be used for communication between vehicles and infrastructure.
  • the infrastructure can be roads, traffic lights, roadblocks, etc., and road management information such as traffic light signal timing can be obtained.
  • the sending end and the receiving end in V2X may both be D2D devices, and V2X devices, such as terminal devices.
  • the terminal equipment in the embodiments of the present application may refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless Communication equipment, user agent or user device.
  • the terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle communication devices, in-vehicle communication chips, wearable devices, terminal devices in the future 5G network, or future evolution of public land mobile communication networks (public land mobile network) ,
  • the terminal equipment in the PLMN which is not limited in the embodiment of the present application.
  • the network device in the embodiment of the application may be a device used to communicate with a terminal device.
  • the network device may be a global system for mobile communications (GSM) system or code division multiple access (CDMA)
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • the base transceiver station (BTS) in the LTE system can also be the base station (NodeB, NB) in the wideband code division multiple access (WCDMA) system, or the evolved base station (evolved) in the LTE system.
  • NodeB, NB base station
  • WCDMA wideband code division multiple access
  • evolved evolved base station
  • NodeB, eNB or eNodeB it can also be a wireless controller in the cloud radio access network (CRAN) scenario, or the network device can be a relay station, access point, in-vehicle device, wearable device, future The network equipment in the 5G network or the network equipment in the future evolved PLMN network, the next generation NodeB (gNB) in the 5G mobile communication system, the transmission point, the base station in the future mobile communication system, or the wireless fidelity (wireless Fidelity (Wi-Fi) system access node, one or a group of (including multiple antenna panels) antenna panels of base stations in 5G system, 5G relay nodes, or a network that constitutes a gNB or transmission point Nodes, such as baseband unit (BBU), or distributed unit (DU), etc.
  • CRAN cloud radio access network
  • the network device can be a relay station, access point, in-vehicle device, wearable device, future The network equipment in the 5G network or the network equipment in the future evolved PLMN
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • CU implements part of the functions of gNB
  • DU implements part of the functions of gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and realizes the functions of the radio link control (RLC) layer, media access control (MAC) layer, and physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • AAU realizes some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer is ultimately carried on the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by DU or DU+AAU. It can be understood that the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
  • 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), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the application do not specifically limit the specific structure of the execution subject of the methods provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided according to the embodiments of the application.
  • the execution subject of the method provided in the embodiment 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 and execute the program.
  • various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques.
  • article of manufacture as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • 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.
  • V2X vehicle to everything
  • V2X refers to the provision of vehicle information through sensors, on-board terminals, etc. mounted on the vehicle, and communication between vehicles and vehicles, vehicles and people, vehicles and roadside infrastructure, and vehicles and networks through various communication technologies.
  • Fig. 1 is an example diagram of a system architecture to which an embodiment of the present application is applied.
  • the communication system includes: V2X application server, V2X equipment (including V2X equipment 1 and V2X equipment 2), and network equipment. Communication between V2X devices is realized through the PC5 interface.
  • the communication link between V2X devices is defined as a sidelink (SL).
  • the communication between the V2X device and the V2X application server needs to be forwarded through the network device, specifically: for the uplink, the sending end V2X device sends the V2X data to the network device through the Uu interface, and the network device sends the data to the V2X application server for processing, and then The V2X application server delivers to the receiving V2X device; for the downlink, the V2X application server sends the V2X data to the network device, and the network device sends the V2X data to the V2X device through the Uu interface.
  • the V2X device in FIG. 1 is an Internet of Things device, such as a UE.
  • FIG. 1 is only exemplarily described with the V2X device 1 and does not limit the embodiment of the present application.
  • the communication between the V2X device 1 and the V2X device 2 may be bidirectional, and the V2X device 2 Device 2 can also perform uplink communication with network devices, which is not specifically limited.
  • the broadcast mode means that the sender uses a broadcast mode for data transmission, and all receivers can parse side link control information (SCI) and service channel information (side link shared channel, SSCH).
  • SCI side link control information
  • SSCH service channel information
  • the way to ensure that all terminal devices can parse the control information is: the control information data is not scrambled or the known scrambling code of all terminal devices is used.
  • the multicast mode means that the sender uses the multicast mode for data transmission, and all receivers belonging to the multicast group can parse SCI and SSCH.
  • the SSCH will contain the corresponding group destination identifier, and only the terminal devices belonging to the multicast group will configure the multicast destination identifier, so that the SSCH data can be parsed.
  • the unicast mode is that one terminal device (such as a vehicle-mounted module) sends data to another terminal device, and other terminal devices do not need or cannot parse the data.
  • QoS parameters include one or more of the following parameters: PC5 QoS flow identifier (PC5 QoS flow identifier, PFI), PC5 fifth-generation communication system quality of service identifier (PC5 5G QoS identifier, PQI), allocation and reservation priority ( allocation and retention priority (ARP), guaranteed flow bit rate (GFBR), maximum flow bit rate (MFBR), and minimum required communication range (range, range).
  • PC5 QoS flow identifier PC5 QoS flow identifier
  • PC5 5G QoS identifier PC5 fifth-generation communication system quality of service identifier
  • PQI PC5 fifth-generation communication system quality of service identifier
  • allocation and reservation priority allocation and retention priority (ARP)
  • GFBR guaranteed flow bit rate
  • MFBR maximum flow bit rate
  • minimum required communication range range, range
  • PFI is a scalar quantity that uniquely identifies the PC5 QoS flow within a terminal device or within the PC5-S connection of a terminal device.
  • a PFI corresponds to a QoS profile (QoS profile), and a QoS profile contains one or more of PQI, ARP, MFBR, GFBR, and range.
  • PQI is also a scalar, used to index the corresponding 5G QoS features.
  • PQI is divided into standardized PQI, pre-configured PQI and dynamically allocated PQI.
  • standardized PQI there is a one-to-one correspondence with a set of standardized 5G QoS characteristic values; for the pre-configured PQI, the corresponding 5G QoS characteristic values are pre-configured on the access network element or terminal equipment.
  • the corresponding 5G QoS features are sent by the core network device to the access network element or terminal device through a QoS profile (QoS profile).
  • ARP includes priority, preemption ability, and preemption ability.
  • GFBR represents the bit rate expected to be provided to a guaranteed bit rate (guaranteed bit rate, GBR) QoS flow (flow).
  • MFBR limits the bit rate provided to GBR QoS flow, that is, the maximum bit rate provided to GBR QoS flow. If the bit rate is exceeded, data packets can be discarded.
  • Range represents the minimum communication distance that meets these QoS parameter requirements.
  • a per-flow QoS model based on QoS flow is proposed.
  • This QoS model is applicable to unicast, multicast and broadcast.
  • the V2X layer of the terminal device the V2X data packets from the application layer are mapped to the corresponding PC5 QoS flow according to the configured PC5 QoS rules, and the corresponding PC5 QoS flow is identified by PFI; the V2X layer of the terminal device submits the V2X data to the AS layer When packet, it will indicate the PC5 QoS flow identification PFI corresponding to the V2X data packet.
  • the AS layer of the terminal device will map the data packet from the V2X layer to the wireless data bearer (sidelink data radio bearer, SL DRB) according to the configured QoS flow Put the corresponding SL DRB for data transmission.
  • the wireless data bearer sidelink data radio bearer
  • Mode 1 There are two ways for a terminal device to obtain SL resources. One is that before the terminal device sends V2X service data, it needs to request resources from the network device, and the network device allocates V2X SL resources as needed. This mode is called mode 1; The other is that terminal devices can compete for acquisition in V2X SL resources broadcast by network devices or V2X SL resources pre-configured by the V2X control function. This type of mode is called mode 2. Mode 2 can also be understood as the resource that the terminal device transmits each time it is selected in order from the configured resource pool.
  • the terminal device of mode 1 can only be in the RRC connected state.
  • the terminal device in mode 2 may be in an RRC connected state, an RRC idle state, an RRC inactive state, or an out-of-courage (OOC) state. If a terminal device currently supports both mode 1 and mode 2, it can only be in the RRC connected state.
  • OOC out-of-courage
  • FIG. 2 shows a schematic flowchart of a method 200 for acquiring a radio bearer configuration according to an embodiment of the present application. As shown in FIG. 2, the method 200 shown includes:
  • the first terminal device obtains side-chain radio bearer configuration information, where the radio bearer configuration information includes the index and the first parameter corresponding to the first side-chain data radio bearer SL DRB, and the index corresponding to the first SL DRB and
  • the first parameter has an association relationship, wherein the first parameter includes a first quality of service QoS parameter and/or a resource configuration mode of the first terminal device, and the side chain is the first terminal device and The wireless link between the second terminal device.
  • the resource configuration mode may include mode 1 and/or mode 2.
  • the index corresponding to the first SL DRB having an association relationship with the first parameter may include: the index corresponding to the first SL DRB having an association relationship with a parameter, or having an association relationship with a parameter list (list) Relationship, or, has an association relationship with different parameter types.
  • one QoS parameter can be mapped to one SL DRB, and multiple QoS parameters (such as similar QoS parameters) can be mapped to one SL DRB, or one QoS parameter and resource mode can be mapped to one SL DRB together, or associated with the same resource
  • Multiple QoS parameters in the configuration mode can be collectively mapped to one SL DRB.
  • the configuration of the first SL DRB is predefined by the standard.
  • the first terminal device can obtain the configuration of the corresponding first SL DRB predefined by the standard based on the index of the first SL DRB.
  • the first parameter includes a first QoS parameter; or, the first parameter includes a resource configuration mode of the first terminal device; or, the first parameter includes a first quality of service QoS parameter and the first terminal device’s A resource configuration mode, where the first QoS parameter has an association relationship with the resource configuration mode of the first terminal device.
  • the first QoS parameter includes one or more of the following information: PC5 QoS flow identifier PC5 QFI (ie PFI), PC5 fifth-generation communication system quality of service identifier PQI, guaranteed flow bit rate GFBR, maximum Streaming bit rate MFBR, minimum required communication distance, allocation and reservation priority ARP.
  • the radio bearer configuration information includes the index and PFI corresponding to the first SL DRB.
  • the PFI may be predefined by the standard or non-standard.
  • the QoS configuration files corresponding to the same PFI are also the same; if the PFI is a non-standard predefined Defined, which can also be called dynamic allocation.
  • the QoS profile corresponding to the same PFI may not necessarily be the same (for example, the PFI 1 of UE 1 corresponds to PQI 1, UE 2's PFI 1 corresponds to PQI 2).
  • the terminal device can support a standard predefined PFI or a non-standard predefined PFI, which depends on the configuration of the core network or the V2X control function.
  • S220 The first terminal device performs side chain transmission based on the radio bearer configuration information.
  • the first terminal device after obtaining the radio bearer configuration information of the side chain, can obtain the configuration of the first SL DRB predefined by the standard through the index corresponding to the first SL DRB, and can also obtain the configuration of the first SL DRB.
  • SL First parameter associated with DRB so as to perform side chain transmission. That is, the first terminal device can obtain the configuration of the first SL DRB predefined by the standard through the index corresponding to the first SL DRB, and does not need to send the complete configuration of the SL DRB every time, thereby saving overhead.
  • the following describes how the first terminal device obtains radio bearer configuration information in different states.
  • the first terminal device may obtain the radio bearer configuration information through an RRC message.
  • the first terminal device is in an RRC connected state, and the method 200 further includes: the first terminal device sends a first RRC message to the network device, the first RRC message including the first QoS parameter and a first indication Information, the first indication information is used to indicate that the resource configuration mode corresponding to the first QoS parameter is mode 2.
  • the first terminal device when the first terminal device is in the RRC connected state, the first terminal device may be in mode 1, or in mode 2, or both modes can coexist.
  • the first RRC message may also include one or more of the following: a communication mode (for example, unicast, multicast, or broadcast) associated with SL DRB, used to establish source address information of SL DRB , Target address information used to establish SL DRB, connection identification information used to establish SL DRB, logical channel information (indicating available logical channel (logical channel, LCH) or unavailable LCH).
  • a communication mode for example, unicast, multicast, or broadcast
  • SL DRB used to establish source address information of SL DRB
  • Target address information used to establish SL DRB used to establish SL DRB
  • connection identification information used to establish SL DRB connection identification information used to establish SL DRB
  • logical channel information indicating available logical channel (logical channel, LCH) or unavailable LCH).
  • the source address information used to establish SL DRB and the target address information used to establish SL DRB can be associated with each service or upper-layer PC5-S connection, and the UE can correspond to multiple target address information; or, it can also Associated with the UE, that is, the source address information and the target address information are unique for each UE.
  • the connection identification information used to establish SL DRB refers to the information obtained by the UE transforming the source address information used to establish SL DRB and the target address information used to establish SL DRB, or the connection identification information used to establish SL DRB is PC5 -S upper layer (the upper layer refers to the V2X layer or the application layer) connects the assigned identification information.
  • the destination address information used to establish the SL DRB, for unicast is a peer UE ID
  • multicast is a group destination ID converted from a group ID
  • broadcast is a destination converted from a service type ID.
  • the first terminal device may send the first QoS parameter and first indication information to the network device, where the first indication information is used to indicate the first QoS parameter It is the QoS parameter in mode 2, so that the network device configures the corresponding side chain radio bearer configuration information for the first terminal device.
  • the first RRC message may be a message used to request establishment of a side-chain radio bearer, such as an SL DRB establishment request message, a sidelink UE information message, or a UE assistance information message.
  • a side-chain radio bearer such as an SL DRB establishment request message, a sidelink UE information message, or a UE assistance information message.
  • the network device may send a second RRC message to the first terminal device, where the second RRC message includes the radio bearer configuration information, and the radio bearer configuration information is related to the mode 2
  • the associated side chain radio bearer configuration information, or the radio bearer configuration information is the side chain radio bearer configuration information associated with mode 1.
  • S210 includes: S211, the first terminal device receives the second RRC message sent by the network device.
  • the network device may configure the side chain radio bearer configuration associated with mode 2 for the first terminal device Information, or, the side chain radio bearer configuration information associated with mode 1 may be configured for the first terminal device.
  • the first indication information may indicate that the resource configuration mode corresponding to the first QoS parameter is mode 1.
  • the network device may configure the side chain radio bearer configuration information associated with mode 1 for the first terminal device, or may configure the side chain radio bearer configuration information associated with mode 2 for the first terminal device.
  • the second RRC message may be an SL DRB establishment response message, or may also be another RRC message, which is not limited in the embodiment of the present application.
  • the side chain radio bearer configuration information associated with mode 2 or mode 1 sent by the network device to the first terminal device may include the index and the first parameter corresponding to the first SL DRB, that is, the first SL DRB is predefined by the standard .
  • the side-chain radio bearer configuration information associated with mode 2 or mode 1 sent by the network device to the first terminal device includes the specific configuration and first parameters of the first SL DRB, that is, the first SL DRB is non-standard Pre-defined, wherein the specific configuration of the first SL DRB has an association relationship with the first parameter.
  • the specific configuration of the first SL DRB may include one or more of the following: the identification of the first SL DRB, each protocol layer configuration of the first SL DRB, communication mode, source address information, destination address information, Connection identification information.
  • the communication mode includes unicast, multicast, and broadcast.
  • the source address information and target address information can be associated with each service or upper-layer PC5-S connection.
  • the UE can correspond to multiple address information, or it can also be associated with the UE, that is, the source address information and the target address information are for each UE is unique.
  • the connection identification information refers to the information obtained by the UE transforming the source address information and the target address information, or the connection identification information used to establish SL DRB is the identification information assigned by the PC5-S upper layer (the upper layer refers to the V2X layer or the application layer) .
  • the first SL DRB includes: the identifier of the first SL DRB, each protocol layer configuration of the first SL DRB, communication mode, source address information, destination address information, and connection identification information.
  • the communication mode, source address information, destination address information, connection identification information, and each protocol layer configuration of the first SL DRB are associated with the identification of the first SL DRB.
  • the protocol layer configurations of the first SL DRB include one or more of the following configurations: service data protocol (SDAP) configuration, packet data convergence protocol (packet data convergence protocol, PDCP) configuration, Information such as radio link control (RLC) configuration and logical channel (logical channel, LCH) configuration.
  • SDAP service data protocol
  • PDCP packet data convergence protocol
  • RLC radio link control
  • LCH logical channel
  • SDAP configuration may include one or more of the following information: parameter information mapped to the first SL DRB (such as QoS parameters, communication mode, source address information, destination address information, connection identification information); whether it is default (default) SL DRB configuration instructions; SDAP layer header information.
  • parameter information mapped to the first SL DRB such as QoS parameters, communication mode, source address information, destination address information, connection identification information
  • SDAP layer header information whether it is default (default) SL DRB configuration instructions.
  • the PDCP configuration may include one or more of the following information: a timer discardTimer used to control the time that a PDCP service data unit (SDU) can be stored in the PDCP cache; The timer t-Reordering waiting for out-of-order data packets in the sorting function; whether the PDCP layer can deliver data packets out of order to the upper layer; whether the PDCP layer uses sidelink data compression, and the related configuration of sidelink data compression, such as compressing buffer size and compression The used dictionary, etc.; the length of the sequence number (SN) used by the PDCP layer PDU; the security configuration used by the PDCP entity, including whether encryption and/or integrity protection is used; the security algorithm used by the PDCP entity (integrity protection algorithm and Encryption algorithm) and/or key, etc.; whether PDCP uses duplication mechanism and duplication configuration, if duplication mechanism is adopted, the PDCP entity will correspond to two or more RLC entities and LCH; PDCP layer header compression algorithm related configuration, such
  • the RLC configuration may include: the mode adopted by the RLC entity, such as acknowledged mode (AM) mode, unacknowledged mode (UM) mode, or transparent mode (TM) mode (wherein , RLC layer configuration can be ignored in TM mode).
  • AM acknowledged mode
  • UM unacknowledged mode
  • TM transparent mode
  • the RLC configuration also includes one or more of the following information:
  • the SN length of the RLC layer PDU is used to control the initiation of poll (poll refers to the AM RLC entity at the sending end through the MAC PDU
  • the poll bit instructs the receiving end AM RLC entity to perform status report feedback)
  • Retransmission timer t-PollRetransmit used to control how many RLC PDUs need to be initiated after the poll parameter pollPDU is used to control how many bytes are sent after RLC PDU needs
  • the pollByte parameter pollByte the maximum number of retransmissions at the RLC layer maxRetxThreshold, the timer t
  • the RLC configuration further includes one or more of the following information: the SN length of the RLC layer PDU, and the timer t-Reassembly that controls the RLC layer to wait for segmentation.
  • the LCH configuration may include one or more of the following information: LCH identification (for example, LCH ID); the identification of the logical channel group of the LCH; the relevant parameters for logical channel priority processing: priority, priority Bit rate (prioritisedBitRate, PBR), token bucket size duration; can transmit the carrier information of the data in the LCH; can transmit the resource mode information of the data in the LCH, such as mode 1, or mode 2, or mode 1, and mode 2;
  • the basic parameter set numerology information of the resource that can transmit the data in the LCH such as subcarrier interval, cyclic prefix length, resource time domain duration, whether it can be configured to authorize resources, etc.; control whether the LCH can trigger SR Parameter SR-mask; the parameter SR-DelayTimerApplied that controls whether the LCH can delay triggering SR.
  • the LCH configuration may also include a logical channel index, where the logical channel index is used to obtain a logical channel ID according to a preset rule, such as an LCH ID.
  • the first terminal device can use the logical channel index to complete the mapping from the logical channel index to the logical channel ID.
  • the LCH ID uniquely identifies a logical channel in one target address information. Since some LCH IDs may have been occupied by the SL DRB configuration of mode 1 or the SL DRB configuration of mode 2, it is necessary to introduce a logical channel index to solve the problem that the first terminal device has the same target address information for mode 1 and mode 2 LCH IDs The problem of conflict.
  • the first terminal obtains the logical channel index, selects an unoccupied logical channel ID for a certain specific target address information, and then associates the logical channel index to these selected logical channel IDs.
  • the first terminal device may associate logical channel index 1 to the selected smallest logical channel ID, and logical channel index 2 to the selected logical channel ID next to the smallest logical channel ID (that is, only greater than the Minimum logical channel ID); or, the first terminal device can associate logical channel index 1 with the selected largest logical channel ID, and logical channel index 2 can be associated with the selected logical channel ID next to the largest logical channel (that is, only Less than the maximum logical channel ID).
  • the foregoing preset rule for associating the logical channel index to the logical channel ID may also be other implementation manners, which is not limited.
  • the specific configuration of the first SL DRB is described above, and here is a unified description. In the embodiment of this application, regardless of whether the SL DRB is predefined by the standard, that is, the corresponding SL DRB configuration is searched through the index corresponding to the first SL DRB, or the network For device configuration, the specific configurations of the first SL and DRB described above are all applicable, which is not limited.
  • the first RRC message sent by the first terminal device to the network device may further include second indication information.
  • the second indication information is used to indicate that the first QoS parameter is standard predefined or non-standard predefined, for example, the first QoS parameter is PFI.
  • the second indication information is used to indicate that the first QoS parameter is non-standard predefined, for example, the PFI is dynamically configured.
  • the standard predefined PFI refers to: the QoS profile associated with the PFI value is the same for all connections of one or more terminal devices. If the terminal device uses a standard pre-defined PFI value, the QoS configuration file associated with the PFI value is also defined in the standard. Regardless of which terminal device or connection, the QoS profile associated with the PFI value is determined and can be obtained from the standard.
  • the core network or V2X control function can configure multiple different PFIs for different terminal devices, for example, configure PFI1, PFI2, and PFI3 for UE1, and configure PFI2, PFI3, and PFI4 for UE2.
  • the respective associated QoS profiles are different.
  • the QoS profile associated with the PFI2 of UE1 and the QoS profile associated with the PFI2 of UE2 are different.
  • different connections for example, PC5-S connections
  • the QoS profiles associated with the same PFI in different connections may be different.
  • whether the first QoS parameter is predefined by the standard may depend on an instruction from the upper layer of the UE.
  • the second indication information may be delivered by the V2X layer or the APP layer of the first terminal device to the AS layer of the first terminal device.
  • the second implementation manner when the first terminal device is in the RRC idle state or the inactive state, there is no RRC message interaction between the first terminal device and the network device, so the radio bearer configuration information is obtained by listening to the system broadcast message.
  • the method 200 further includes: a network device sending a system information block (SIB) broadcast message, where the SIB broadcast message includes the radio bearer configuration information.
  • SIB system information block
  • S210 includes: S212, the first terminal device receives the system information block SIB broadcast message sent by the network device.
  • the resource configuration mode adopted by the first terminal device is mode 2
  • the radio bearer configuration information can be obtained through the SIB broadcast message sent by the network device.
  • the radio bearer configuration information includes the index corresponding to the first SL DRB and the first parameter, and the index corresponding to the SL DRB has an association relationship with the first parameter.
  • the index corresponding to the first SL DRB is predefined by the standard. In this way, the first terminal device can obtain the first SL DRB configuration predefined by the standard according to the index corresponding to the first SL DRB. It should be understood that the first SL DRB predefined by the standard may refer to the description in S211, which is not repeated here for brevity.
  • the radio bearer configuration information in the SIB broadcast message includes the specific configuration and the first parameter of the first SL DRB, where the specific configuration of the first SL DRB has an association relationship with the first parameter.
  • the specific configuration of the first SL DRB may refer to the description in S211, and for the sake of brevity, details are not described here.
  • the RRC connection establishment may be triggered to obtain the radio bearer configuration information from the RRC response message.
  • the first terminal device obtains the specific description of the radio bearer configuration information from the RRC response message.
  • the first terminal device obtains the specific description of the radio bearer configuration information through the second RRC message.
  • I will not repeat them here.
  • the first QoS parameter may be predefined by the standard, for example, the PFI is predefined by the standard.
  • the foregoing describes the manner in which the first terminal device obtains the radio bearer configuration information through the RRC message or the SIB broadcast message, and the first terminal device may also obtain the radio bearer configuration information through a pre-configuration manner.
  • the first terminal device is in an RRC idle state or an inactive state, and the radio bearer configuration information can be obtained from the pre-configuration information.
  • the pre-configuration information includes the index corresponding to the SL DRB and the first parameter, and the index corresponding to the SL DRB has an association relationship with the first parameter.
  • the index corresponding to the first SL DRB is predefined by the standard. In this way, the first terminal device can obtain the first SL DRB configuration predefined by the standard according to the index corresponding to the first SL DRB. It should be understood that the first SL DRB predefined by the standard may refer to the description in S211, which is not repeated here for brevity.
  • the radio bearer configuration information in the pre-configuration information includes the specific configuration and the first parameter of the first SL DRB, where the specific configuration of the first SL DRB has an association relationship with the first parameter. It should be understood that the relevant description of the specific configuration of the first SL DRB may refer to the description of S211 above, and for the sake of brevity, details are not described here.
  • the first QoS parameter in the pre-configuration information may be predefined by the standard, for example, the PFI is predefined by the standard.
  • the radio bearer configuration information may be obtained from the pre-configuration information. It should be understood that some specific implementations of the radio bearer configuration information are similar to the description of obtaining the radio bearer configuration information from the pre-configuration information when the first terminal device is in the RRC idle state or the inactive state, and will not be repeated for brevity.
  • the priority order for acquiring the radio bearer configuration information can be defined, so that the first terminal device decides which way to use to acquire the radio bearer configuration information based on the priority order.
  • the priority order of obtaining radio bearer configuration information can be reduced in the following order: the method of obtaining side-chain radio bearer configuration information through RRC messages, the method of obtaining side-chain radio bearer configuration information through SIB messages, and the Ways to obtain side-chain radio bearer configuration information.
  • the first terminal device may send the radio bearer configuration information to the opposite terminal device, such as the second terminal device.
  • the method 200 further includes: the first terminal device may send the radio bearer configuration information to the second terminal device.
  • the radio bearer configuration information includes one or more of the following: (1) SL DRB configuration only related to data transmission, (2) SL DRB configuration only related to data reception, (3) and data transmission SL DRB configuration related to reception.
  • the multiple items of content included have an association relationship.
  • the numbers (1)(2)(3) are used for description here, and the corresponding specific content of the numbers can be referred to above.
  • the radio bearer configuration information includes: (1), (2), and (3), then (1), (2), and (3) have an association relationship; for another example, the radio bearer configuration information includes: (1) ) And (3), then (1) and (3) have an association relationship; for another example, the radio bearer configuration information includes: (2) and (3), then (2) and (3) have an association relationship; For another example, the radio bearer configuration information includes: (1) and (2), then (1) and (2) have an association relationship.
  • the first terminal device may be the originating UE, and the second terminal device may be the receiving UE.
  • the first terminal device can send the SL DRB configuration related to data transmission to the second terminal device, so that the second terminal device can use the SL DRB configuration related to data transmission to perform the data on the SL when performing the sending action. transmission.
  • the first terminal device may be the originating UE, and the second terminal device may be the receiving UE.
  • the first terminal device can send the SL DRB configuration related to data reception to the second terminal device, so that the second terminal device can use the SL DRB configuration related to data reception to perform the data on the SL when performing the receiving action receive.
  • the first terminal device may be related to both data transmission and data reception.
  • the SL DRB configuration is sent to the second terminal device, so that the second terminal device can also use the SL DRB configuration related to both data transmission and data reception to send or receive data on the SL when performing the sending and receiving actions.
  • the first terminal device may Send the index corresponding to the SL DRB to the second terminal device.
  • the second terminal device can learn the SL DRB configuration predefined by the corresponding standard based on the index corresponding to the SL DRB.
  • the first terminal device may also send the first parameter associated with the index corresponding to the SL DRB to the second terminal device, so that the second terminal device can learn the first parameter associated with the standard predefined SL DRB. Information about the parameter.
  • the method 200 further includes: the first terminal device acquires an SL DRB configuration only related to data reception.
  • the SL DRB configuration only related to data reception may also be one or more of the following parameters associated with the SL DRB corresponding to the first terminal device according to the SL DRB configuration related only to data reception: QoS parameters, resource configuration mode, communication type, source address, destination address, connection identification and other information are determined.
  • the first terminal device determines the SL DRB configuration only related to data reception according to the SL DRB configuration related only to data transmission and corresponding to the SL DRB configuration related only to data reception.
  • the first terminal device determines the SL DRB configuration related only to data reception according to the SL DRB configuration related to both data transmission and reception corresponding to the SL DRB configuration related only to data reception.
  • the first terminal device is based on the SL DRB configuration only related to data transmission corresponding to the SL DRB configuration related only to data reception, and the SL DRB configuration related only to data reception is related to both data transmission and reception. For the relevant SL DRB configuration, determine the SL DRB configuration only related to data reception.
  • the SL DRB configuration related only to data reception is sent by the second terminal device to the first terminal device.
  • the second terminal device may obtain the SL DRB configuration only related to data reception from the RRC message, the SIB message, or the pre-configuration information.
  • the second terminal device is based on one or more of the following parameters associated with the SL DRB corresponding only to the SL DRB configuration related to data reception: QoS parameters, resource configuration mode, communication type, source address , Target address, connection identification and other information, determine the SL DRB configuration only related to data reception.
  • the second terminal device determines the SL DRB configuration only related to data reception according to the SL DRB configuration only related to data transmission corresponding to the SL DRB configuration related only to data reception.
  • the second terminal device determines the SL DRB configuration related only to data reception according to the SL DRB configuration related to data transmission and reception that corresponds to the SL DRB configuration related only to data reception.
  • the second terminal device determines the SL DRB configuration only related to data reception: SL DRB configuration related to both data transmission and reception, and SL DRB configuration related only to data transmission. SL DRB configuration related to data reception.
  • the above information can be based on the QoS parameters, resource configuration mode, communication type and other information associated with the SL DRB corresponding only to the SL DRB configuration related to data reception; or, according to only The SL DRB configuration only related to data transmission and/or the SL DRB configuration related to both data transmission and reception corresponding to the SL DRB configuration related to data reception are used to determine the SL DRB configuration related only to data reception.
  • the SL DRB configuration rules that are only related to data reception can be determined through RRC messages, SIB messages or pre-configuration, or they can be determined only related to data reception.
  • SL DRB configuration whether it is for the first terminal device or the second terminal device, the SL DRB configuration rules that are only related to data reception can be determined through RRC messages, SIB messages or pre-configuration, or they can be determined only related to data reception.
  • SL DRB configuration is determined through RRC messages, SIB messages, or pre-configuration, and the corresponding priorities are sequentially reduced.
  • the first terminal device obtains the radio bearer configuration information of the side chain.
  • the technical solution for the terminal device to obtain the QoS configuration file associated with the V2X data packet will be described below.
  • the AS layer of the terminal device needs to know the specific PC5 QoS configuration file associated with each V2X data packet.
  • unicast, multicast, and broadcast are all based on the per-flow QoS model.
  • Each V2X data packet in the upper layer will carry the PC5 QoS flow identifier PFI.
  • the terminal device also needs to obtain the QoS configuration file associated with the V2X data packet.
  • this application also provides a method for obtaining a QoS configuration file of a data packet.
  • FIG. 3 shows a schematic flowchart of a method 300 for obtaining a QoS configuration file of a data packet according to another embodiment of the present application. As shown in FIG. 3, the method 300 includes:
  • the access (AS) layer of the terminal device obtains the PC5 QoS flow identifier PFI and a QoS configuration file, where the PFI and the QoS configuration file have a corresponding relationship, and the QoS configuration file includes the following information One or more of: PC5 fifth-generation communication system service quality identification PQI, guaranteed stream bit rate GFBR, maximum stream bit rate MFBR, minimum required communication distance, allocation and reservation priority ARP.
  • the AS layer includes the SDAP layer, PDCP layer, RLC layer, MAC layer and PHY layer.
  • S310 includes: the AS layer of the terminal device may obtain the corresponding relationship from an upper layer (V2X layer or APP layer).
  • the access layer AS of the terminal device obtains the corresponding relationship from the V2X layer or the APP layer, including:
  • the V2X layer or the APP layer of the terminal device obtains the corresponding relationship from the core network, or the V2X layer or the APP layer of the terminal device obtains the pre-configured corresponding relationship; the access layer AS of the terminal device receives The corresponding relationship from the V2X layer or the APP layer of the terminal device.
  • the AS layer of the terminal device may also obtain the corresponding relationship through a V2X control function.
  • the core network or the V2X control function may send an update instruction to the V2X layer or the APP layer of the terminal device to instruct the terminal device to update the corresponding relationship.
  • the V2X layer or APP layer of the terminal device submits the update instruction to the AS layer of the terminal device, so that the AS layer of the terminal device obtains the updated correspondence.
  • S310 includes: the AS layer of the terminal device receives the correspondence sent by the network device.
  • the AS layer of the terminal device receiving the correspondence sent by the network device includes: the AS layer of the terminal device receiving the RRC message sent by the network device, where the RRC message includes the corresponding Relationship; or, the AS layer of the terminal device receives the SIB message sent by the network device, wherein the SIB message includes the corresponding relationship.
  • the network device may send an update instruction to the AS layer of the terminal device to instruct the terminal device to update the corresponding relationship.
  • the AS layer of the terminal device may update the correspondence relationship based on the update instruction to obtain the updated correspondence relationship.
  • the terminal device determines a QoS profile corresponding to the first data packet based on the corresponding relationship.
  • the first data packet is used to generally refer to a V2X data packet.
  • the upper layer of the terminal device when the first data packet is delivered from the upper layer (including the V2X layer or the APP layer) to the AS layer, the upper layer of the terminal device will be in the interlayer primitive between the upper layer and the AS layer (wherein, the interlayer primitive can be It is understood as inter-layer interaction) to carry the PFI associated with the first data packet, but not in the header of the first data packet, or the PFI is carried in the header of the first data packet submitted by the upper layer of the terminal device to the AS layer.
  • the terminal device After obtaining the corresponding relationship, the terminal device can further know the QoS configuration file corresponding to the first data packet. In this way, it can be guaranteed that the AS layer of the terminal device can learn the QoS configuration file of each V2X data packet, where the QoS configuration file of the V2X data packet can be used for resource selection and parameter configuration during corresponding SL data transmission.
  • the originating UE may send the obtained correspondence relationship to the receiving UE.
  • the originating UE can be sent through a PC5-RRC message (for example, it can be sent together with radio bearer configuration information (SL DRB configuration), or sent through an RRC reconfiguration reconfiguration message, or sent when a PC5RRC connection is established, or in SDAP
  • SL DRB configuration radio bearer configuration information
  • RRC reconfiguration reconfiguration message or sent when a PC5RRC connection is established, or in SDAP
  • the header of the packet carries PC5 QFI, or it is sent through the PC5-S message on the upper layer connection of the PC5-S).
  • This application also provides a method for obtaining data packet QoS configuration files.
  • Each V2X data packet submitted to the AS layer through the upper layer (including the V2X layer or the APP layer) carries the QoS configuration file and PFI in the source language of the interlayer. , So that the AS layer of the terminal device knows the QoS configuration file of each V2X data packet.
  • the access layer AS of the terminal device receives the first data packet from the V2X layer or the APP layer of the terminal device, and the first data packet is carried (specifically, it can be carried by the inter-layer primitive or the header of the first data packet)
  • the PC5 QoS flow identifier PFI associated with the first data packet and the QoS profile associated with the first data packet; the terminal device obtains the associated PFI and the PFI from the first data packet The QoS configuration file.
  • the upper layer of the terminal device (such as the V2X layer or the APP layer) submits the V2X data packet to the AS layer, it can carry the PFI associated with each V2X data packet in the interlayer primitive or the header of the V2X data packet. And QoS configuration files.
  • the AS layer of the terminal device obtains the associated PFI and the QoS configuration file from the V2X data packet.
  • the terminal device will continuously update the association relationship between the PFI and the QoS configuration file according to the PFI and QoS configuration files carried in the V2X data packet from the upper layer (specifically, it can be carried by the inter-layer primitive or the header of the first data packet).
  • the AS layer of the terminal device can use PFI for matching to obtain the QoS profile associated with the corresponding PFI.
  • the terminal device can obtain the PFI and the QoS configuration file that have an association relationship in the PFI and QoS configuration files carried in the V2X data packet.
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • Fig. 4 shows a schematic block diagram of a communication device 400 according to an embodiment of the present application.
  • the apparatus 400 is used to execute the method executed by the terminal device in the foregoing method embodiment.
  • the specific form of the apparatus 400 may be a terminal device or a module (for example, a chip) in the terminal device, which is not limited in the embodiment of the present application.
  • the device 400 may be a vehicle-mounted communication device or a vehicle-mounted communication chip.
  • the apparatus 400 is a first terminal device, and the apparatus 400 includes: a transceiver module 410 and a processing module 420.
  • the transceiver module 410 is configured to obtain radio bearer configuration information of the side chain.
  • the radio bearer configuration information includes the index and the first parameter corresponding to the first side chain data radio bearer SL DRB, and the index corresponding to the first SL DRB is
  • the first parameter has an association relationship, wherein the first parameter includes a first quality of service QoS parameter and/or a resource configuration mode of the first terminal device, and the side chain is the first terminal device and the second terminal device. Two wireless links between terminal devices.
  • the processing module 420 is configured to perform side chain transmission based on the radio bearer configuration information.
  • the transceiver module 410 is further configured to send a first RRC message to the network device, where the first RRC message includes the first QoS parameter and first indication information, and the first RRC message
  • the indication information is used to indicate that the resource configuration mode corresponding to the first QoS parameter is mode 2.
  • the transceiver module 410 is configured to obtain radio bearer configuration information of the side chain, including: receiving a second RRC message sent by a network device, where the second RRC message includes the radio bearer configuration information, and the radio bearer
  • the configuration information is side chain radio bearer configuration information associated with the mode 2, or the side chain radio bearer configuration information is side chain radio bearer configuration information associated with mode 1.
  • the first RRC message further includes second indication information, and the second indication information is used to indicate that the first QoS parameter is predefined by the standard or non-standard.
  • the transceiver module 410 is further configured to receive the second indication information from the V2X layer or the APP layer of the first terminal device.
  • the first RRC message further includes a pre-configured SL DRB associated with the first QoS parameter, or the first RRC message further includes a first QoS parameter associated with the first QoS parameter.
  • the terminal device receives the SL DRB obtained by the SIB broadcast message.
  • the first SL DRB includes a logical channel configuration, where the logical channel configuration includes a logical channel index, and the logical channel index is used to obtain the logical channel ID according to a preset rule.
  • the transceiver module 410 is configured to obtain the radio bearer configuration information of the side chain, which specifically includes: receiving a system information block SIB broadcast message sent by a network device, where the SIB broadcast message includes the radio bearer Configuration information; or, the processing module 420 is configured to trigger the establishment of an RRC connection, and obtain the radio bearer configuration information by receiving an RRC response message.
  • the first QoS parameter is predefined by a standard.
  • the first QoS parameter includes one or more of the following information: PC5 QoS flow identification PFI, PC5 fifth-generation communication system quality of service identification PQI, guaranteed flow bit rate GFBR, and maximum flow bit rate MFBR, The minimum required communication distance, allocation and reservation priority ARP.
  • the apparatus 400 for power control may correspond to the method of the terminal device in the foregoing method embodiment, for example, the method in FIG. 2, and the above-mentioned and other management operations and/or the various modules in the apparatus 400
  • the or functions are to implement the corresponding steps of the method of the terminal device in the foregoing method embodiment, and therefore, the beneficial effects in the foregoing method embodiment can also be achieved.
  • details are not described here.
  • the apparatus 400 may also execute the method for obtaining a QoS configuration file of a data packet in an embodiment of the present application, which is specifically as follows:
  • the transceiver module 410 is configured to obtain a PC5 QoS flow identifier PFI and a QoS configuration file, where the PFI and the QoS configuration file have a corresponding relationship, wherein the QoS configuration file includes one or more of the following information: PC5
  • the fifth-generation communication system service quality mark PQI guarantees the stream bit rate GFBR, the maximum stream bit rate MFBR, the minimum required communication distance, and assigns and reserves priority ARP;
  • the processing module 420 is configured to determine the QoS configuration file corresponding to the first data packet based on the corresponding relationship.
  • the AS layer of the terminal device acquiring the correspondence between the PFI and the QoS profile includes: the V2X layer or the application APP layer of the terminal device acquiring the correspondence from the core network, or, Acquire the pre-configured corresponding relationship; the access layer AS of the terminal device receives the corresponding relationship from the V2X layer or the APP layer of the terminal device.
  • the communication device 400 may correspond to the method of the terminal device in the foregoing method embodiment, for example, the method in FIG. 3, and the foregoing and other management operations and/or functions of the various modules in the device 400
  • the beneficial effects in the foregoing method embodiment can also be achieved.
  • details are not described here.
  • the apparatus 400 may also execute the method for obtaining a QoS configuration file of a data packet in an embodiment of the present application, which is specifically as follows: the transceiver module 410 is configured to receive The first data packet of the V2X layer or the APP layer, where the first data packet carries (carried by inter-layer primitives or carried by the header of the first data packet) the PC5 QoS flow identifier PFI associated with the first data packet, And a QoS configuration file associated with the first data packet; a processing module 420, configured to obtain the PFI and the QoS configuration file having a corresponding relationship from the first data packet.
  • the transceiver module 410 is configured to receive The first data packet of the V2X layer or the APP layer, where the first data packet carries (carried by inter-layer primitives or carried by the header of the first data packet) the PC5 QoS flow identifier PFI associated with the first data packet, And a QoS configuration file associated with the first data packet; a processing module
  • each module in the device 400 may be implemented in the form of software and/or hardware, which is not specifically limited.
  • the device 400 is presented in the form of functional modules.
  • the "module” here may refer to application-specific integrated circuits ASIC, circuits, processors and memories that execute one or more software or firmware programs, integrated logic circuits, and/or other devices that can provide the above-mentioned functions.
  • the device 400 may adopt the form shown in FIG. 5.
  • the processing module 420 may be implemented by the processor 501 shown in FIG. 5.
  • the transceiver module 410 may be implemented by the transceiver 503 shown in FIG. 5.
  • the processor is implemented by executing a computer program stored in the memory.
  • the function and/or implementation process of the transceiver module 410 may also be implemented through pins or circuits.
  • the memory is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the computer device, as shown in FIG. 5 502.
  • FIG. 5 shows a schematic structural diagram of a communication device 500 according to an embodiment of the present application.
  • the device 500 may be a vehicle-mounted communication device or a vehicle-mounted communication chip.
  • the apparatus 500 includes a processor 501.
  • the processor 501 is configured to call an interface to perform the following actions: obtain radio bearer configuration information of the side chain, and the radio bearer configuration information includes the first side chain data radio bearer SL and DRB corresponding An index and a first parameter.
  • the index corresponding to the first SL DRB has an associated relationship with the first parameter, where the first parameter includes a first quality of service QoS parameter and/or a resource of the first terminal device
  • the side chain is a wireless link between the first terminal device and the second terminal device; the processor 501 is further configured to perform side chain transmission based on the radio bearer configuration information.
  • the processor 501 is configured to obtain a PC5 QoS flow identification PFI and a QoS configuration file, where the PFI and the QoS configuration file have a corresponding relationship, wherein the QoS configuration file includes one or more of the following information Item: PC5 fifth-generation communication system service quality indicator PQI, guaranteed stream bit rate GFBR, maximum stream bit rate MFBR, minimum required communication distance, allocation and reservation priority ARP; the processor 501 is also used to The relationship determines the QoS profile corresponding to the first data packet.
  • the processor 501 is configured to receive a first data packet from the V2X layer or the APP layer of the terminal device, and the first data packet is carried (carried by the inter-layer primitive or the header of the first data packet)
  • the PC5 QoS flow identifier PFI associated with the first data packet, and the QoS configuration file associated with the first data packet; the corresponding PFI and the QoS configuration are obtained from the first data packet file.
  • the processor 501 may call an interface to perform the above-mentioned transceiving actions, where the called interface may be a logical interface or a physical interface, which is not limited.
  • the physical interface can be implemented by a transceiver.
  • the device 500 further includes a transceiver 503.
  • the device 500 further includes a memory 502, and the memory 502 can store the program code in the foregoing method embodiment, so that the processor 501 can call it.
  • the device 500 includes the processor 501, the memory 502, and the transceiver 503, the processor 501, the memory 502, and the transceiver 503 communicate with each other through an internal connection path to transfer control and/or data signals.
  • the processor 501, the memory 502, and the transceiver 503 may be implemented by chips.
  • the processor 501, the memory 502, and the transceiver 503 may be implemented on the same chip, or may be implemented on different chips. Or any combination of two functions can be implemented in one chip.
  • the memory 502 can store program codes, and the processor 501 calls the program codes stored in the memory 502 to implement corresponding functions of the device 500.
  • apparatus 500 may also be used to perform other steps and/or operations on the terminal device side in the foregoing embodiments, and for the sake of brevity, details are not described here.
  • Fig. 6 shows a schematic block diagram of a communication device 600 according to an embodiment of the present application.
  • the apparatus 600 is used to execute the method executed by the network device in the foregoing method embodiment.
  • the specific form of the apparatus 600 may be a network device or a module (for example, a chip) in the network device.
  • the device 600 may be a vehicle-mounted communication device or a vehicle-mounted communication chip. The embodiments of this application do not limit this.
  • the device 600 includes: a processing module 610 and a transceiver module 620.
  • the processing module 610 is configured to determine an index and a first parameter corresponding to the first side-chain data radio bearer SL DRB, and the index corresponding to the first SL DRB has an association relationship with the first parameter, where the first parameter Includes the first quality of service QoS parameter and/or the resource configuration mode of the first terminal device.
  • the transceiver module 620 is configured to send radio bearer configuration information of the side chain, where the radio bearer configuration information includes the index corresponding to the first SL DRB and the first parameter, and the side chain is the first terminal device And the wireless link between the second terminal device.
  • the transceiver module 620 is configured to send radio bearer configuration information of the side chain, including: receiving a first RRC message sent by a first terminal device, where the first RRC message includes the first QoS parameters and first indication information, where the first indication information is used to indicate that the resource configuration mode corresponding to the first QoS parameter is mode 2; a second RRC message is sent to the first terminal device, the second RRC The message includes the radio bearer configuration information, the radio bearer configuration information is the side chain radio bearer configuration information associated with the mode 2, or the side chain radio bearer configuration information is the side chain associated with the mode 1. Radio bearer configuration information.
  • the first RRC message further includes second indication information, and the second indication information is used to indicate that the first QoS parameter is predefined by the standard or non-standard predefined.
  • the first RRC message further includes a pre-configured SL DRB associated with the first QoS parameter
  • the transceiver module 620 is configured to send the message to the first terminal device
  • Sending a second RRC message specifically includes: sending a second RRC message to the first terminal device according to the pre-configured SL DRB; or, the first RRC message also includes the first terminal device acquiring through a SIB broadcast message
  • the transceiving module 620 is configured to send a second RRC message to the first terminal device, which specifically includes: broadcasting via SIB according to the first terminal device
  • the SL DRB obtained by the message sends a second RRC message to the first terminal device.
  • the first SL DRB includes a logical channel configuration, where the logical channel configuration includes a logical channel index, and the logical channel index is used by the first terminal device to obtain the logical channel ID according to a preset rule .
  • the first terminal device is in a radio resource control RRC idle state or an inactive state
  • the transceiver module 620 is configured to send side-chain radio bearer configuration information, which specifically includes: sending a system information block SIB broadcast message, where the SIB broadcast message includes the radio bearer configuration information.
  • the communication device 600 may correspond to the method of the network device in the foregoing method embodiment, for example, the method in FIG. 2, and the foregoing and other management operations and/or functions of the various modules in the device 600
  • the beneficial effects in the foregoing method embodiment can also be achieved.
  • details are not described here.
  • each module in the device 600 can be implemented in the form of software and/or hardware, which is not specifically limited.
  • the device 600 is presented in the form of functional modules.
  • the "module” here may refer to application-specific integrated circuits ASIC, circuits, processors and memories that execute one or more software or firmware programs, integrated logic circuits, and/or other devices that can provide the above-mentioned functions.
  • the device 600 may adopt the form shown in FIG. 7.
  • the processing module 610 may be implemented by the processor 701 shown in FIG. 7.
  • the transceiver module 620 may be implemented by the transceiver 703 shown in FIG. 7.
  • the processor is implemented by executing a computer program stored in the memory.
  • the function and/or implementation process of the transceiver module 620 may also be implemented by pins or circuits.
  • the memory is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the computer device, such as the memory shown in FIG. 702.
  • FIG. 7 shows a schematic structural diagram of a communication device 700 according to an embodiment of the present application.
  • the device 700 may be a vehicle-mounted communication device or a vehicle-mounted communication chip.
  • the device 700 includes a processor 701.
  • the processor 701 is configured to determine the index and the first parameter corresponding to the first side-chain data radio bearer SL DRB, and the index corresponding to the first SL DRB and the first parameter A parameter has an association relationship, where the first parameter includes a first quality of service QoS parameter and/or a resource configuration mode of the first terminal device; the processor 701 is configured to call an interface to perform the following actions: The radio bearer configuration information of the chain, the radio bearer configuration information includes the index corresponding to the first SL DRB and the first parameter, and the side chain is between the first terminal device and the second terminal device Wireless link.
  • the processor 701 may call an interface to perform the above-mentioned transceiving action, where the called interface may be a logical interface or a physical interface, which is not limited.
  • the physical interface can be implemented by a transceiver.
  • the device 700 further includes a transceiver 703.
  • the device 700 further includes a memory 702, and the memory 702 can store the program code in the foregoing method embodiment, so that the processor 701 can call it.
  • the device 700 includes the processor 701, the memory 702, and the transceiver 703, the processor 701, the memory 702, and the transceiver 703 communicate with each other through an internal connection path to transfer control and/or data signals.
  • the processor 701, the memory 702, and the transceiver 703 may be implemented by chips, and the processor 701, the memory 702, and the transceiver 703 may be implemented on the same chip, or may be implemented on different chips. Or any combination of two functions can be implemented in one chip.
  • the memory 702 may store program codes, and the processor 701 calls the program codes stored in the memory 702 to implement corresponding functions of the apparatus 700.
  • apparatus 700 may also be used to perform other steps and/or operations on the network device side in the foregoing embodiment, and for the sake of brevity, details are not described here.
  • the methods disclosed in the above embodiments of the present application may be applied to a processor or implemented by a processor.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components can also be system on chip (SoC), central processor unit (CPU), or network processor (network processor).
  • SoC system on chip
  • CPU central processor unit
  • network processor network processor
  • processor can also be a digital signal processing circuit (digital signal processor, DSP), can also be a microcontroller (microcontroller unit, MCU), can also be a programmable controller (programmable logic device, PLD) or other Integrated chip.
  • DSP digital signal processor
  • MCU microcontroller unit
  • PLD programmable controller
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • serial link DRAM SLDRAM
  • direct rambus RAM direct rambus RAM
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic.
  • the various numerical numbers or serial numbers involved in the foregoing processes are only for easy distinction for description, and should not constitute any limitation on the implementation process of the embodiments of the present application.
  • the item can be any of the following: A; B ; C; A and B; A and C; B and C; A, B and C; A and A; A, A and A; A, A and B; A, A and C, A, B and B; A , C and C; B and B, B, B and B, B, B and C, C and C; C, C and C, and other combinations of A, B and C.
  • the item can be any of the following: A; B ; C; A and B; A and C; B and C; A, B and C; A and A; A and B; A, A and C, A, B and B; A , C and C; B and B, B, B and C, C and C; C, C and C, and other combinations of A, B and C.
  • the item includes at least one of the following: A, B,..., and X"
  • the applicable items of the item can also be obtained according to the aforementioned rules.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate 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 they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each 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.
  • 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.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read only memory ROM, random access memory RAM, magnetic disk or optical disk and other media that can store program codes.

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Abstract

La présente invention concerne un procédé et un appareil permettant d'acquérir une configuration de porteuse radio. Un premier dispositif terminal acquiert des informations de configuration de porteuse radio, les informations de configuration de porteuse radio comprenant un indice correspondant à une première porteuse radio de données (DRB) de liaison latérale (SL) et un premier paramètre, l'indice correspondant à la première DRB de SL ayant une relation d'association avec le premier paramètre, et le premier dispositif terminal effectue une transmission de liaison latérale sur la base des informations de configuration de porteuse radio. Dans la présente invention, la configuration d'une DRB de SL prédéfinie par une norme correspondante peut être obtenue au moyen d'un indice correspondant à la DRB de SL, sans qu'il soit nécessaire d'acquérir directement toutes les configurations de la DRB de SL, ce qui aide à réduire les surcharges de signalisation.
PCT/CN2020/087703 2019-04-30 2020-04-29 Procédé et appareil pour acquérir une configuration de porteuse radio WO2020221281A1 (fr)

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