WO2023098865A1 - Method executed by user equipment and user equipment - Google Patents

Method executed by user equipment and user equipment Download PDF

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Publication number
WO2023098865A1
WO2023098865A1 PCT/CN2022/136172 CN2022136172W WO2023098865A1 WO 2023098865 A1 WO2023098865 A1 WO 2023098865A1 CN 2022136172 W CN2022136172 W CN 2022136172W WO 2023098865 A1 WO2023098865 A1 WO 2023098865A1
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WIPO (PCT)
Prior art keywords
relay
remote
srap
rrc connection
user equipment
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PCT/CN2022/136172
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French (fr)
Chinese (zh)
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张崇铭
刘仁茂
坪井秀和
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夏普株式会社
张崇铭
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Publication of WO2023098865A1 publication Critical patent/WO2023098865A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present invention relates to the technical field of wireless communication, and more specifically, the present invention relates to a method executed by user equipment and corresponding user equipment.
  • a user equipment UE can directly communicate with the base station, and such a communication connection is called a direct connection (direct connection).
  • the UE can also communicate with the base station through a relay UE (relay UE), and this connection can be called an indirect connection (indirect connection).
  • relay UE relay UE
  • this connection can be called an indirect connection (indirect connection).
  • the relay UE communicates with the base station
  • the UE is called a remote UE (remote UE).
  • the SRAP layer is designed.
  • the SRAP layer on the PC5 interface is called PC5 SRAP
  • the SRAP layer on the Uu interface is called Uu SRAP.
  • the mapping relationship between bearer and logical channel is configured in PC5 SRAP
  • the local identity of the remote UE and the mapping relationship between bearer and logical channel are configured in Uu SRAP.
  • PC5 SRAP and Uu SRAP entities are logically configured to handle the mapping relationship to ensure correct communication of data between the remote UE and the base station.
  • the present invention provides a method executed by user equipment and the user equipment.
  • a method performed by user equipment is provided, which is performed during the process of communicating between a remote UE and a base station through a relay UE, including the following steps:
  • the relay UE receives the RRC connection reconfiguration message from the base station, and the message carries the configuration information of SRAP used for the relay UE, that is, the first configuration information;
  • the relay UE After receiving the above-mentioned first configuration information, the relay UE configures corresponding parameters of the SRAP entity according to the above-mentioned first configuration information, and the parameters are used for a specific remote UE.
  • the configuration information of the Uu SRAP of the relay UE and/or the configuration information of the PC5 SRAP of the relay UE are included in the above-mentioned first configuration information.
  • the above-mentioned RRC connection reconfiguration message also carries information about releasing one or more remote UEs, that is, release information.
  • the relay UE After receiving the above release information, the relay UE releases the PC5 RRC connection with the remote UE.
  • the relay UE also releases the SRAP configuration information corresponding to the remote UE.
  • the relay UE or the remote UE performs at least one of the following operations:
  • the relay UE When the relay UE releases the PC5 RRC connection with the remote UE, the relay UE performs at least one of the following operations:
  • the remote UE performs at least one of the following operations:
  • the above SRAP configuration includes at least one of the following information:
  • the local UE identity of the remote UE is the local UE identity of the remote UE
  • a user equipment including:
  • the above-mentioned instructions when executed by the above-mentioned processor, cause the above-mentioned user equipment to perform the method according to the above-mentioned description.
  • the correct communication between the remote UE and the base station can be realized by managing the configuration of the SRAP.
  • FIG. 1 is a schematic diagram showing UE-to-Network relay.
  • Fig. 2 is a schematic diagram showing the control plane protocol stack of UE-to-Network L2 architecture.
  • Fig. 3 shows a method executed by a user equipment UE according to an embodiment of the present invention.
  • Fig. 4 is a brief structural block diagram of the user equipment UE involved in the present invention.
  • UE User Equipment user equipment
  • MAC CE MAC control element
  • RLC Radio Link Control Wireless Link Control
  • SDAP Service Data Adaptation Protocol Service Data Adaptation Protocol
  • PDCP Packet Data Convergence Protocol Packet Data Convergence Protocol
  • SRAP Sidelink Relay Adaptation Protocol
  • Sidelink Relay Adaptation Protocol Sidelink Relay Adaptation Protocol
  • RRC Radio Resource Control Radio Resource Control
  • RRC_IDLE RRC idle state
  • RAN Radio Access Network, wireless access network
  • SCI Sidelink Control Information, side link communication control information
  • MIB Master Information Block, master information block
  • SIB System Information Block, system information block
  • NG-RAN NG Radio Access Network, a new generation of radio access network
  • DCI Downlink Control Information, downlink control information
  • ADAPT Adaptation layer, side link communication adaptation layer
  • PHY physical layer, physical layer
  • RB radio bearer, wireless bearer
  • DRB Data Radio Bearer, data radio bearer
  • SRB Signaling Radio Bearer, signaling radio bearer
  • PDU Protocol Data Unit Protocol Data Unit
  • SDU Service Data Unit service data unit
  • V2X Vehicle-to-Everything Internet of Vehicles
  • CCCH Common Control Channel public control channel
  • DCCH Dedicated Control Channel dedicated control channel
  • the network, base station and RAN can be used interchangeably, and the network can be a long-term evolution LTE network, a new radio access technology (New RAT, NR) network, an enhanced long-term evolution eLTE network, or a subsequent evolution version of 3GPP Other networks defined in .
  • New RAT new radio access technology
  • eLTE enhanced long-term evolution eLTE network
  • the user equipment UE may refer to the NR equipment supporting the NR Sidelink relay function described in the background technology, or may refer to the NR equipment supporting the NR sidelink relay architecture, or may refer to other types of NR equipment or LTE equipment.
  • sidelink and PC5 can be used interchangeably, and RLC channel (channel), RLC entity and RLC bearer (bearer) can be used interchangeably.
  • the PC5 interface is an interface for Sidelink communication between the UE and the UE on the control plane and the user plane.
  • the PC5-RRC connection is an AS layer logical connection between a pair of source layer 2 IDs and target layer 2 IDs.
  • the establishment of a PC5 unicast link corresponds to the establishment of a PC5-RRC connection.
  • such a pair of source layer 2 ID and target layer 2 ID (or only the target layer 2 ID) can be considered as NR Sidelink communication address information (destination), so such PC5RRC connection or NR Sidelink communication is Associated with a specific address (or destination ID).
  • the remote UE-to-Network relay is shown in Figure 1.
  • the remote UE is on the left, the relay UE is in the middle, and the network is on the right; in scenario 3, the networks are on both sides, and the middle is from the left To the right are the remote UE and the relay UE.
  • the remote UE is connected to the relay UE through the PC5 interface, and the relay UE is connected to the network through the Uu interface. Since the remote UE is far away from the network or the communication environment is not good, the relay UE needs to relay and forward the signaling and data between the two.
  • the Remote UE After the Remote UE selects a relay UE to provide relay services for itself, it will establish a PC5-RRC connection with the relay UE to communicate with the network through the relay UE.
  • the remote UE can establish an air interface RRC connection with the network through the relay UE for data transmission between the remote UE and the network.
  • the Remote UE will send the air interface RRC connection establishment (setup), re-establishment (re-establish), and resume (resume) messages to the network to encapsulate the data through the Uu PDCP layer, and submit them to the corresponding PC5 RLC entity through the PC5 SRAP entity for further encapsulation. It is carried on the PC5 RLC channel and delivered downward layer by layer through PC5-MAC and PC5-PHY.
  • the relay UE After the relay UE receives the data carrying the message, it submits it layer by layer through the PC5-PHY and PC5-MAC.
  • the relay UE adds the local identifier assigned by the base station to identify the remote UE, and Find the Uu RLC channel carrying the message according to the pre-configured mapping relationship between the radio bearer and the Uu RLC channel, encapsulate the message in the Uu message/data and send it to the network.
  • the base station encapsulates the RRC message returned by the network into the Uu message/data and sends it to the relay UE.
  • the relay UE determines the PC5 RLC channel that carries the message, and encapsulates the message in the PC5 message/data sent to the remote UE. .
  • the PC5 interface is a wireless communication interface between the Remote UE and the relay UE.
  • the remote UE and the relay UE communicate through a sidelink (sidelink), and the communication interface of the sidelink is the PC5 interface, so the descriptions of sidelink and PC5 in this article can be replaced with each other.
  • the PC5 RLC entity refers to the RLC entity used for PC5 interface communication.
  • the PC5 RLC entity carries information from the Uu PDCP entity, so such a PC5 RLC entity can also be called a PC5 RLC bearer (bearer).
  • the PC5 SRAP entity refers to the SRAP entity used for PC5 interface communication.
  • the PC5 SRAP on the remote UE side determines the uplink data (UE sends The PC5 RLC entity submitted by the data to the base station), and determine the bearer corresponding to the downlink data from the PC5 RLC entity (data sent by the base station to the UE).
  • PC5 SRAP entity corresponding to the remote UE side in the relay UE.
  • UE can use E-UTRAN to communicate with eNB on Uu interface.
  • UE can also use NR to communicate with gNB on Uu interface.
  • Uu SRAP entity refers to the SRAP entity used for Uu interface communication.
  • the relay UE can send the received data information of the remote UE to the corresponding Uu RLC entity, and can send the received data information from the base station to the corresponding remote UE to realize mapping or adaptive functions.
  • both the PC5 SRAP entity and the Uu SRAP entity refer to the SRAP entity that complies with the SRAP protocol stack, but the communication interfaces used by the two are different.
  • entity and layer can be interchanged, such as SRAP entity or SRAP layer.
  • This embodiment provides a method performed by a user equipment UE, which is a method performed during a process in which a remote UE communicates with a base station through a relay UE. As shown in FIG. 3 , the method includes the following steps.
  • Step S301 the Relay UE receives an RRC message from the base station, such as an RRC connection reconfiguration message, in which the SRAP configuration information sl-SRAP-Config-Relay (herein recorded as the first configuration information) for the relay UE is carried ).
  • the configuration information (that is, the first configuration information) may include configuration information of Uu SRAP of the relay UE, and/or configuration information of PC5 SRAP of the relay UE.
  • Step S302 After receiving the above information (that is, the first configuration information), the relay UE configures the corresponding parameters of the SRAP entity according to the above information (configure the parameters to SRAP entity in accordance with the sl-SRAP-Config-Relay).
  • these parameters are used for a specific remote UE, that is, while configuring SRAP, the base station also provides information about the remote UE managed with the SRAP configuration, such as the value of the layer 2 identifier of the remote UE. Then this part of the configured SRAP parameters is associated (association) with the remote UE corresponding to the value of the layer 2 identifier.
  • the Relay UE can also receive the RRC connection reconfiguration message from the base station, in which the message carries the information of releasing one or more remote UEs (referred to as the release information here), specifically, it can carry a list, which contains The value of the layer 2 identifier of the remote UE that needs to be released.
  • the relay UE After receiving the above information (that is, the release information), the relay UE releases the PC5 RRC connection with the remote UE, where the remote UE refers to the remote UE whose value of the layer 2 identifier appears in the above list. And, the relay UE also releases the SRAP configuration information corresponding to the remote UE (release the sl-SRAP-Config-Relay associated with the remote UE). Preferably, the relay UE releases the configuration information of PC5 SRAP and Uu SRAP. It may also be that the relay UE only releases the configuration information of the Uu SRAP therein.
  • the Relay UE receives an RRC message from the base station, such as an RRC connection reconfiguration message (RRC connection reconfiguration), in which the SRAP configuration information sl-SRAP-Config-Relay for the relay UE is carried (denoted as the first configuration information).
  • the configuration information (that is, the first configuration information) may include configuration information of Uu SRAP of the relay UE, and/or configuration information of PC5 SRAP of the relay UE.
  • the relay UE After receiving the above information (that is, the first configuration information), the relay UE configures the corresponding parameters of the SRAP entity (configure the parameters to SRAP entity in accordance with the sl-SRAP-Config-Relay) according to the above information.
  • these parameters are used for a specific remote UE, that is, while configuring SRAP, the base station also provides information about the remote UE associated with the SRAP configuration, such as the value of the layer 2 identifier of the remote UE. Then this part of the configured SRAP parameters is associated (association) with the remote UE corresponding to the value of the layer 2 identifier, and is used for the specific remote UE.
  • the Relay UE can also receive the RRC connection reconfiguration message from the base station, in which the message carries the information of releasing one or more remote UEs (referred to as the release information here), specifically, it can carry a list, which contains The value of the layer 2 identifier of the remote UE that needs to be released.
  • the relay UE After receiving the above information (that is, the release information), the relay UE releases the PC5 RRC connection with the remote UE, where the remote UE refers to the remote UE whose value of the layer 2 identifier appears in the above list.
  • the relay UE can perform one or more of the following operations:
  • SRAP configuration associated with the PC5 RRC connection for the relay UE such as sl-SRAP-Config-relay configuration
  • SRAP configuration for relay UE associated with the address corresponding to the PC5 RRC connection such as sl-SRAP-Config-relay configuration
  • the remote UE when the relay UE releases the PC5 RRC connection with the remote UE, the remote UE also releases the connection with the relay UE, so the remote UE can perform the following operations
  • the above sl-SRAP-Config-remote configuration means that the remote UE has received the RRC connection reconfiguration message from the base station, and the message carries the SRAP configuration information sl-SRAP-Config-Remote for the remote UE (recorded here for the 2nd configuration information).
  • the configuration information may include the configuration information of the PC5 SRAP of the remote UE.
  • Embodiments 2 and 3 when a UE is used as a remote UE or a relay UE, when it starts PC5 RRC connection release, it can perform the following operations:
  • the sl-SRAP-Config configuration in the above process refers to the sl-SRAP-Config-remote for the remote UE, and refers to the sl-SRAP-Config-relay configuration for the relay UE.
  • the local UE identification (local identity, local ID) of the remote UE which is used for Uu SRAP to distinguish the remote UE;
  • the mapping list of the bearer identification of the remote UE and the RLC channel (which can be Uu RLC or PC5 RLC);
  • the RLC channel at the Uu interface such as the channel identifier
  • RLC channel at the PC5 interface such as channel identification
  • Fig. 4 is a brief structural block diagram of the user equipment UE involved in the present invention.
  • the user equipment UE400 includes a processor 401 and a memory 402 .
  • the processor 401 may include, for example, a microprocessor, a microcontroller, an embedded processor, and the like.
  • the memory 402 may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a nonvolatile memory (such as a flash memory), or other memories.
  • Memory 402 has program instructions stored thereon. When the instructions are executed by the processor 401, the above method described in detail in the present invention and executed by the user equipment may be executed.
  • the program running on the device according to the present invention may be a program that causes a computer to realize the functions of the embodiments of the present invention by controlling a central processing unit (CPU).
  • the program or information processed by the program may be temporarily stored in volatile memory (such as random access memory RAM), hard disk drive (HDD), non-volatile memory (such as flash memory), or other memory systems.
  • a program for realizing the functions of the various embodiments of the present invention can be recorded on a computer-readable recording medium.
  • the corresponding functions can be realized by causing a computer system to read programs recorded on the recording medium and execute the programs.
  • the so-called “computer system” here may be a computer system embedded in the device, which may include an operating system or hardware (such as peripheral devices).
  • the "computer-readable recording medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium in which a short-term dynamic storage program is stored, or any other recording medium readable by a computer.
  • circuits for example, single-chip or multi-chip integrated circuits.
  • Circuits designed to perform the functions described in this specification may include general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of the above.
  • DSPs digital signal processors
  • ASICs application-specific integrated circuits
  • FPGAs field-programmable gate arrays
  • a general-purpose processor can be a microprocessor, or it can be any existing processor, controller, microcontroller, or state machine.
  • the above-mentioned circuits may be digital circuits or analog circuits. Where advances in semiconductor technology have resulted in new integrated circuit technologies that replace existing integrated circuits, one or more embodiments of the invention may also be implemented using these new integrated circuit technologies.
  • the present invention is not limited to the above-described embodiments. Although various examples of the embodiments have been described, the present invention is not limited thereto.
  • Fixed or non-mobile electronic equipment installed indoors or outdoors can be used as terminal equipment or communication equipment, such as AV equipment, kitchen equipment, cleaning equipment, air conditioners, office equipment, vending machines, and other household appliances.

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Abstract

The present invention provides a method executed by a user equipment (UE) and a UE. The method is a method executed in the process that a remote UE communicates with a base station by means of a relay UE, and comprises the following steps: the relay UE receiving an RRC connection reconfiguration message from the base station, the message carrying configuration information for an SRAP of the relay UE, i.e., first configuration information; and after receiving the first configuration information, the relay UE configuring a corresponding parameter of an SRAP entity according to the first configuration information, the parameter being used for a specific remote UE.

Description

由用户设备执行的方法及用户设备Method performed by user equipment and user equipment 技术领域technical field
本发明涉及无线通信技术领域，更具体地，本发明涉及由用户设备执行的方法以及相应的用户设备。The present invention relates to the technical field of wireless communication, and more specifically, the present invention relates to a method executed by user equipment and corresponding user equipment.
背景技术Background technique
在一个基站覆盖的小区内，一个用户设备UE可以与基站直接进行通信，这样的通信连接被称为直接连接(direct connection)。这个UE还可以通过一个中继UE(relay UE)和基站进行通讯连接，这种连接可以被称为非直接连接(indirect connection)。在通过relay UE和基站进行通信的场景下，这个UE被称为远端UE(remote UE)。In a cell covered by a base station, a user equipment UE can directly communicate with the base station, and such a communication connection is called a direct connection (direct connection). The UE can also communicate with the base station through a relay UE (relay UE), and this connection can be called an indirect connection (indirect connection). In the scenario where the relay UE communicates with the base station, the UE is called a remote UE (remote UE).
为了实现relay通信，设计了SRAP层，在PC5接口上的SRAP层被称为PC5 SRAP，在Uu接口上的SRAP层被称为Uu SRAP。在PC5 SRAP中配置了承载和逻辑信道的映射关系，在Uu SRAP中配置了远端UE的本地标识，以及承载和逻辑信道的映射关系。在relay UE内部，在逻辑上配置了PC5 SRAP和Uu SRAP实体，用于处理映射关系，以保证数据在remote UE和基站之间正确通信。In order to realize relay communication, the SRAP layer is designed. The SRAP layer on the PC5 interface is called PC5 SRAP, and the SRAP layer on the Uu interface is called Uu SRAP. The mapping relationship between bearer and logical channel is configured in PC5 SRAP, and the local identity of the remote UE and the mapping relationship between bearer and logical channel are configured in Uu SRAP. Inside the relay UE, PC5 SRAP and Uu SRAP entities are logically configured to handle the mapping relationship to ensure correct communication of data between the remote UE and the base station.
为了实现上述操作，如何管理SRAP的配置是需要解决的问题。In order to realize the above operations, how to manage the configuration of the SRAP is a problem to be solved.
发明内容Contents of the invention
为了解决上述问题，本发明提供一种由用户设备执行的方法以及用户设备。In order to solve the above problems, the present invention provides a method executed by user equipment and the user equipment.
根据本发明的一个方面，提供了一种由用户设备执行的方法，是远端UE通过中继UE与基站进行通信的过程中执行的方法，包括如下步骤：According to one aspect of the present invention, a method performed by user equipment is provided, which is performed during the process of communicating between a remote UE and a base station through a relay UE, including the following steps:
中继UE接收来自基站的RRC连接重配置消息，在该消息中携带了用于中继UE的SRAP的配置信息即第1配置信息；The relay UE receives the RRC connection reconfiguration message from the base station, and the message carries the configuration information of SRAP used for the relay UE, that is, the first configuration information;
在接收到上述第1配置信息之后，中继UE根据上述第1配置信息来配 置SRAP实体的对应参数，该参数用于特定的远端UE。After receiving the above-mentioned first configuration information, the relay UE configures corresponding parameters of the SRAP entity according to the above-mentioned first configuration information, and the parameters are used for a specific remote UE.
在上述的由用户设备执行的方法中，优选地，In the above method performed by the user equipment, preferably,
在上述第1配置信息中包含中继UE的Uu SRAP的配置信息和/或中继UE的PC5 SRAP的配置信息。The configuration information of the Uu SRAP of the relay UE and/or the configuration information of the PC5 SRAP of the relay UE are included in the above-mentioned first configuration information.
在上述的由用户设备执行的方法中，优选地，In the above method performed by the user equipment, preferably,
在上述RRC连接重配置消息中还携带了释放一个或多个远端UE的信息即释放信息。The above-mentioned RRC connection reconfiguration message also carries information about releasing one or more remote UEs, that is, release information.
在上述的由用户设备执行的方法中，优选地，In the above method performed by the user equipment, preferably,
在接收到上述释放信息之后，中继UE释放与远端UE的PC5 RRC连接。After receiving the above release information, the relay UE releases the PC5 RRC connection with the remote UE.
在上述的由用户设备执行的方法中，优选地，In the above method performed by the user equipment, preferably,
中继UE还释放对应于该远端UE的SRAP的配置信息。The relay UE also releases the SRAP configuration information corresponding to the remote UE.
在上述的由用户设备执行的方法中，优选地，In the above method performed by the user equipment, preferably,
在中继UE释放与远端UE的PC5 RRC连接时，中继UE或者远端UE执行下述操作的至少一种：When the relay UE releases the PC5 RRC connection with the remote UE, the relay UE or the remote UE performs at least one of the following operations:
释放与该PC5 RRC连接关联的SRAP配置；release the SRAP configuration associated with the PC5 RRC connection;
释放与对应于该PC5 RRC连接的地址相关联的SRAP配置；或者是，release the SRAP configuration associated with the address corresponding to the PC5 RRC connection; or,
丢弃与该地址或者该PC5 RRC连接关联且与中继操作相关的配置信息。Discard configuration information associated with this address or this PC5 RRC connection and related to relay operations.
在上述的由用户设备执行的方法中，优选地，In the above method performed by the user equipment, preferably,
在中继UE释放与远端UE的PC5 RRC连接时，中继UE执行下述操作的至少一种：When the relay UE releases the PC5 RRC connection with the remote UE, the relay UE performs at least one of the following operations:
释放与该PC5 RRC连接关联的用于中继UE的SRAP配置；Release the SRAP configuration associated with the PC5 RRC connection for the relay UE;
释放与对应于该PC5 RRC连接的地址相关联的用于中继UE的SRAP配置；或者是，releasing the SRAP configuration for the relay UE associated with the address corresponding to the PC5 RRC connection; or,
丢弃与该地址或者该PC5 RRC连接关联且与中继操作相关的配置信息。Discard configuration information associated with this address or this PC5 RRC connection and related to relay operations.
在上述的由用户设备执行的方法中，优选地，In the above method performed by the user equipment, preferably,
在中继UE释放与远端UE的PC5 RRC连接时，远端UE执行下述操作的至少一种：When the relay UE releases the PC5 RRC connection with the remote UE, the remote UE performs at least one of the following operations:
释放与该PC5 RRC连接关联的用于远端UE的SRAP配置；Release the SRAP configuration for the remote UE associated with the PC5 RRC connection;
释放与对应于该PC5 RRC连接的地址相关联的用于远端UE的SRAP配置；或者是，releasing the SRAP configuration for the remote UE associated with the address corresponding to the PC5 RRC connection; or,
丢弃与该地址或者该PC5 RRC连接关联且与中继操作相关的配置信息。Discard configuration information associated with this address or this PC5 RRC connection and related to relay operations.
在上述的由用户设备执行的方法中，优选地，In the above method performed by the user equipment, preferably,
上述SRAP配置包括下述信息的至少一个：The above SRAP configuration includes at least one of the following information:
远端UE的本地UE标识；The local UE identity of the remote UE;
远端UE的承载标识和RLC信道的映射列表；The bearer identification of the remote UE and the mapping list of the RLC channel;
端到端的Uu承载标识；End-to-end Uu bearer identification;
Uu接口处的RLC信道；或者是，the RLC channel at the Uu interface; or,
PC5接口处的RLC信道。RLC channel at the PC5 interface.
根据本发明的另一个方面，提供了一种用户设备，包括：According to another aspect of the present invention, a user equipment is provided, including:
处理器；以及processor; and
存储器，上述存储器上存储有指令，a memory on which instructions are stored,
上述指令在由上述处理器运行时，使上述用户设备执行根据上文所描述的方法。The above-mentioned instructions, when executed by the above-mentioned processor, cause the above-mentioned user equipment to perform the method according to the above-mentioned description.
根据本发明所涉及的由用户设备执行的方法以及相应的用户设备，通过管理SRAP的配置，从而能够实现远端UE与基站之间的正确通信。According to the method performed by the user equipment involved in the present invention and the corresponding user equipment, the correct communication between the remote UE and the base station can be realized by managing the configuration of the SRAP.
附图说明Description of drawings
图1是表示UE-to-Network中继的示意图。FIG. 1 is a schematic diagram showing UE-to-Network relay.
图2是表示UE-to-Network L2架构控制面协议栈的示意图。Fig. 2 is a schematic diagram showing the control plane protocol stack of UE-to-Network L2 architecture.
图3是表示本发明的一实施例涉及的用户设备UE执行的方法。Fig. 3 shows a method executed by a user equipment UE according to an embodiment of the present invention.
图4是本发明涉及的用户设备UE的简要结构框图。Fig. 4 is a brief structural block diagram of the user equipment UE involved in the present invention.
具体实施方式Detailed ways
下面结合附图和具体实施方式对本发明进行详细阐述。应当注意，本发明不应局限于下文所述的具体实施方式。另外，为了简便起见，省略了对与本发明没有直接关联的公知技术的详细描述，以防止对本发明的理解造成混淆。The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the present invention should not be limited to the specific embodiments described below. In addition, for the sake of brevity, detailed descriptions of known technologies that are not directly related to the present invention are omitted to prevent confusion to the understanding of the present invention.
下面描述本发明涉及的部分术语，术语的具体含义见3GPP最新标准规范。Some terms involved in the present invention are described below, and the specific meanings of the terms can be found in the latest standard specification of 3GPP.
RedCap：Reduced capability 功能下降RedCap: Reduced capability function decline
UE：User Equipment 用户设备UE: User Equipment user equipment
NR：New Radio 新一代无线技术NR: New Radio, a new generation of wireless technology
MAC：Medium Access Control 多媒体接入控制MAC: Medium Access Control Multimedia Access Control
MAC CE：MAC control element MAC 控制元素MAC CE: MAC control element MAC control element
RLC：Radio Link Control 无线链路控制RLC: Radio Link Control Wireless Link Control
SDAP：Service Data Adaptation Protocol 服务数据适配协议SDAP: Service Data Adaptation Protocol Service Data Adaptation Protocol
PDCP：Packet Data Convergence Protocol 分组数据汇聚协议PDCP: Packet Data Convergence Protocol Packet Data Convergence Protocol
SRAP：Sidelink Relay Adaptation Protocol 侧行链路中继自适应协议SRAP: Sidelink Relay Adaptation Protocol Sidelink Relay Adaptation Protocol
RRC：Radio Resource Control 无线资源控制RRC: Radio Resource Control Radio Resource Control
RRC_CONNECTED：RRC 连接态RRC_CONNECTED: RRC connected state
RRC_INACTIVE：RRC 非激活态RRC_INACTIVE: RRC inactive state
RRC_IDLE：RRC 空闲态RRC_IDLE: RRC idle state
RAN：Radio Access Network，无线接入网络RAN: Radio Access Network, wireless access network
Sidelink：侧行链路通信Sidelink: sidelink communication
SCI：Sidelink Control Information，侧行链路通信控制信息SCI: Sidelink Control Information, side link communication control information
AS：Access Stratum，接入层AS: Access Stratum, access layer
IE：Information Element，信息元素IE: Information Element, information element
CE：Control Element，控制元素CE: Control Element, control element
MIB：Master Information Block，主信息块MIB: Master Information Block, master information block
SIB：System Information Block，***信息块SIB: System Information Block, system information block
NG-RAN：NG Radio Access Network，新一代无线接入网络NG-RAN: NG Radio Access Network, a new generation of radio access network
DCI：Downlink Control Information，下行控制信息DCI: Downlink Control Information, downlink control information
ADAPT：Adaptation layer，侧行链路通信适配层ADAPT: Adaptation layer, side link communication adaptation layer
PHY：physical layer，物理层PHY: physical layer, physical layer
RB：radio bearer，无线承载RB: radio bearer, wireless bearer
DRB：Data Radio Bearer，数据无线承载DRB: Data Radio Bearer, data radio bearer
SRB：Signalling Radio Bearer，信令无线承载SRB: Signaling Radio Bearer, signaling radio bearer
PDU：Protocol Data Unit 协议数据单元PDU: Protocol Data Unit Protocol Data Unit
SDU：Service Data Unit 服务数据单元SDU: Service Data Unit service data unit
V2X：Vehicle-to-Everything 车联网V2X: Vehicle-to-Everything Internet of Vehicles
CCCH：Common Control Channel 公共控制信道CCCH: Common Control Channel public control channel
DCCH：Dedicated Control Channel 专有控制信道DCCH: Dedicated Control Channel dedicated control channel
本发明中，网络、基站和RAN可互换使用，所述网络可以是长期演进LTE网络、新无线访问技术(New RAT，NR)网络、增强的长期演进eLTE网络，也可以是3GPP后续演进版本中定义的其他网络。In the present invention, the network, base station and RAN can be used interchangeably, and the network can be a long-term evolution LTE network, a new radio access technology (New RAT, NR) network, an enhanced long-term evolution eLTE network, or a subsequent evolution version of 3GPP Other networks defined in .
本发明中，用户设备UE可以指背景技术中所述的支持NR Sidelink中继功能的NR设备，也可以指支持NR sidelink中继架构的NR设备，也可以指其他类型的NR设备或者LTE设备。In the present invention, the user equipment UE may refer to the NR equipment supporting the NR Sidelink relay function described in the background technology, or may refer to the NR equipment supporting the NR sidelink relay architecture, or may refer to other types of NR equipment or LTE equipment.
本发明中，sidelink和PC5可以互换使用，RLC信道(channel)、RLC实体和RLC承载(bearer)可以互换使用。In the present invention, sidelink and PC5 can be used interchangeably, and RLC channel (channel), RLC entity and RLC bearer (bearer) can be used interchangeably.
以下，对本发明的相关技术给出说明。Hereinafter, a description will be given of related art of the present invention.
PC5接口是UE和UE之间进行控制面和用户面Sidelink通信的接口。对于Sidelink单播，PC5-RRC连接是一对源层二ID和目标层二ID之间的AS层逻辑连接。一个PC5单播链路建立就会对应有一个PC5-RRC连接建立。其中，这样的一对源层二ID和目标层二ID(或者仅是其中的目标层二ID)可以被认为是NR Sidelink通信地址信息(destination)，因此这样的PC5RRC连接或者是NR Sidelink通信是与和特定的地址(或者地址标识destination ID)相关联。The PC5 interface is an interface for Sidelink communication between the UE and the UE on the control plane and the user plane. For Sidelink unicast, the PC5-RRC connection is an AS layer logical connection between a pair of source layer 2 IDs and target layer 2 IDs. The establishment of a PC5 unicast link corresponds to the establishment of a PC5-RRC connection. Among them, such a pair of source layer 2 ID and target layer 2 ID (or only the target layer 2 ID) can be considered as NR Sidelink communication address information (destination), so such PC5RRC connection or NR Sidelink communication is Associated with a specific address (or destination ID).
UE-to-Network中继如图1所示，场景1和场景2中，左侧为远端UE，中间为中继UE，右侧为网络；场景3中，两侧为网络，中间从左到右分别为远端UE和中继UE。远端UE和中继UE之间通过PC5接口连接，中继UE和网络通过Uu口连接。由于远端UE距离网络较远或者通信环境不佳，需要中继UE对两者间的信令和数据进行中继转发。UE-to-Network relay is shown in Figure 1. In scenarios 1 and 2, the remote UE is on the left, the relay UE is in the middle, and the network is on the right; in scenario 3, the networks are on both sides, and the middle is from the left To the right are the remote UE and the relay UE. The remote UE is connected to the relay UE through the PC5 interface, and the relay UE is connected to the network through the Uu interface. Since the remote UE is far away from the network or the communication environment is not good, the relay UE needs to relay and forward the signaling and data between the two.
UE-to-Network中继的场景包含：Scenarios for UE-to-Network relay include:
1)Remote UE在覆盖范围外，Relay UE在覆盖范围内(图1所示的场景1)；1) The Remote UE is outside the coverage area, and the Relay UE is within the coverage area (Scenario 1 shown in Figure 1);
2)Remote UE和Relay UE都在覆盖范围内，并且在同一个小区(图1所示的场景2)；2) Both the Remote UE and the Relay UE are within coverage and in the same cell (Scene 2 shown in Figure 1);
3)Remote UE和Relay UE都在覆盖范围内，但在不同小区(图1所示的场景3)。3) Both the Remote UE and the Relay UE are within coverage, but in different cells (Scenario 3 shown in Figure 1).
对于侧行链路通信层二(L2)中继架构，remote UE、relay UE和基站的控制面协议栈如图2所示。For the sidelink communication Layer 2 (L2) relay architecture, the control plane protocol stacks of remote UE, relay UE and base station are shown in Figure 2.
Remote UE选定了一个relay UE为自己提供中继服务后，会和relay UE建立PC5-RRC连接，以便通过relay UE和网络进行通信。Remote UE可以通过relay UE和网络建立空口RRC连接，用于remote UE和网络间的数据传输。Remote UE将向网络进行空口RRC连接建立(setup)、重建(re-establish)、恢复(resume)等消息通过Uu PDCP层对数据进行封装，通过PC5 SRAP实体递交到对应的PC5 RLC实体进一步封装，并承载在PC5RLC信道上，通过PC5-MAC和PC5-PHY逐层向下递交。relay UE收到携带该消息的数据后，通过PC5-PHY和PC5-MAC逐层向上递交，在Uu SRAP实体的处理中，relay UE增加了由基站分配的用于标识remote UE的本地标识，并且根据预先配置的无线承载和Uu RLC信道间的映射关系找到承载该消息的Uu RLC信道，将该消息封装在Uu消息/数据中发送给网络。反过来，网络回复的RRC消息由基站将其封装在Uu消息/数据中发送给relay UE，在PC5 SRAP实体中，relay UE确定承载该消息的PC5 RLC信道，将该消息封装在PC5消息/数据中发送给remote UE。。After the Remote UE selects a relay UE to provide relay services for itself, it will establish a PC5-RRC connection with the relay UE to communicate with the network through the relay UE. The remote UE can establish an air interface RRC connection with the network through the relay UE for data transmission between the remote UE and the network. The Remote UE will send the air interface RRC connection establishment (setup), re-establishment (re-establish), and resume (resume) messages to the network to encapsulate the data through the Uu PDCP layer, and submit them to the corresponding PC5 RLC entity through the PC5 SRAP entity for further encapsulation. It is carried on the PC5 RLC channel and delivered downward layer by layer through PC5-MAC and PC5-PHY. After the relay UE receives the data carrying the message, it submits it layer by layer through the PC5-PHY and PC5-MAC. In the processing of the Uu SRAP entity, the relay UE adds the local identifier assigned by the base station to identify the remote UE, and Find the Uu RLC channel carrying the message according to the pre-configured mapping relationship between the radio bearer and the Uu RLC channel, encapsulate the message in the Uu message/data and send it to the network. Conversely, the base station encapsulates the RRC message returned by the network into the Uu message/data and sends it to the relay UE. In the PC5 SRAP entity, the relay UE determines the PC5 RLC channel that carries the message, and encapsulates the message in the PC5 message/data sent to the remote UE. .
PC5接口PC5 interface
PC5接口是Remote UE和relay UE之间的无线通信接口。Remote UE和relay UE之间通过侧行链路(sidelink)通信，侧行链路的通信接口为PC5接口，因此在本文中sidelink与PC5的描述可以相互替换。The PC5 interface is a wireless communication interface between the Remote UE and the relay UE. The remote UE and the relay UE communicate through a sidelink (sidelink), and the communication interface of the sidelink is the PC5 interface, so the descriptions of sidelink and PC5 in this article can be replaced with each other.
PC5 RLC实体是指用于PC5接口通信的RLC实体。在UE通过relay UE与基站进行连接时，PC5 RLC实体承载了来自Uu PDCP实体的信息，因此这样的PC5 RLC实体又可以称为PC5 RLC承载(bearer)。The PC5 RLC entity refers to the RLC entity used for PC5 interface communication. When the UE is connected to the base station through the relay UE, the PC5 RLC entity carries information from the Uu PDCP entity, so such a PC5 RLC entity can also be called a PC5 RLC bearer (bearer).
PC5 SRAP实体指用于PC5接口通信的SRAP实体，在远端UE通过relay UE与基站进行连接时，远端UE侧的PC5 SRAP根据配置的承载到PC5 RLC的映射关系，确定上行数据(UE发送给基站的数据)递交的PC5RLC实体，以及确定来自PC5 RLC实体的下行数据(基站发送给UE的数据)对应的承载。The PC5 SRAP entity refers to the SRAP entity used for PC5 interface communication. When the remote UE is connected to the base station through the relay UE, the PC5 SRAP on the remote UE side determines the uplink data (UE sends The PC5 RLC entity submitted by the data to the base station), and determine the bearer corresponding to the downlink data from the PC5 RLC entity (data sent by the base station to the UE).
在relay UE中也存在对应于remote UE侧的PC5 SRAP实体。There is also a PC5 SRAP entity corresponding to the remote UE side in the relay UE.
Uu接口Uu interface
UE和基站之间的无线通信接口。UE可以在Uu接口上采用E-UTRAN和eNB通信。UE还可以在Uu接口上采用NR和gNB通信。Wireless communication interface between UE and base station. UE can use E-UTRAN to communicate with eNB on Uu interface. UE can also use NR to communicate with gNB on Uu interface.
Uu SRAP实体是指用于Uu接口通信的SRAP实体。在relay UE侧，通过Uu SRAP实体，relay UE可以将接收到的remote UE的数据信息送往对应的Uu RLC实体，以及可以将接收到的来自基站的数据信息送往对应的remote UE，实现映射或者自适应的功能。Uu SRAP entity refers to the SRAP entity used for Uu interface communication. On the relay UE side, through the Uu SRAP entity, the relay UE can send the received data information of the remote UE to the corresponding Uu RLC entity, and can send the received data information from the base station to the corresponding remote UE to realize mapping or adaptive functions.
在本质上PC5 SRAP实体和Uu SRAP实体都是指遵从SRAP协议栈的SRAP实体，只是两者用于的通信接口不同。在本文中实体与层的说法可以相互替换，例如SRAP entity或者SRAP layer。In essence, both the PC5 SRAP entity and the Uu SRAP entity refer to the SRAP entity that complies with the SRAP protocol stack, but the communication interfaces used by the two are different. In this article, the terms entity and layer can be interchanged, such as SRAP entity or SRAP layer.
以下，详细描述本发明对于上述问题的若干实施例。Hereinafter, several embodiments of the present invention for the above-mentioned problems are described in detail.
实施例1Example 1
本实施例给出了一种用户设备UE执行的方法，是远端UE通过中继UE与基站进行通信的过程中执行的方法，如图3所示，该方法包括如下步骤。This embodiment provides a method performed by a user equipment UE, which is a method performed during a process in which a remote UE communicates with a base station through a relay UE. As shown in FIG. 3 , the method includes the following steps.
步骤S301：Relay UE接收来自基站的RRC消息，例如RRC连接重配置消息，在该消息中携带了用于relay UE的SRAP的配置信息sl-SRAP-Config-Relay(在此记为第1配置信息)。在该配置信息(即，第1配置信息)中可以包含relay UE的Uu SRAP的配置信息，和/或relay UE的PC5 SRAP的配置信息。Step S301: the Relay UE receives an RRC message from the base station, such as an RRC connection reconfiguration message, in which the SRAP configuration information sl-SRAP-Config-Relay (herein recorded as the first configuration information) for the relay UE is carried ). The configuration information (that is, the first configuration information) may include configuration information of Uu SRAP of the relay UE, and/or configuration information of PC5 SRAP of the relay UE.
步骤S302：在接收到上述信息(即，第1配置信息)后，relay UE根据上述信息配置SRAP实体的对应参数(configure the parameters to SRAP entity in accordance with the sl-SRAP-Config-Relay)。Step S302: After receiving the above information (that is, the first configuration information), the relay UE configures the corresponding parameters of the SRAP entity according to the above information (configure the parameters to SRAP entity in accordance with the sl-SRAP-Config-Relay).
优选的，这部分参数用于特定的remote UE，即，在配置SRAP的同时，基站还提供了与该SRAP配置相管理的remote UE的信息，例如remote UE的层2标识的取值。则这部分被配置的SRAP的参数与该层2标识的取值对应的remote UE相关联(association)。Preferably, these parameters are used for a specific remote UE, that is, while configuring SRAP, the base station also provides information about the remote UE managed with the SRAP configuration, such as the value of the layer 2 identifier of the remote UE. Then this part of the configured SRAP parameters is associated (association) with the remote UE corresponding to the value of the layer 2 identifier.
Relay UE还可以接收来自基站的RRC连接重配置消息，在该消息中携带了释放一个或多个远端UE的信息(在此记为释放信息)，具体可以是携带一个列表，在列表中包含了需要被释放的remote UE的层2标识的取值。The Relay UE can also receive the RRC connection reconfiguration message from the base station, in which the message carries the information of releasing one or more remote UEs (referred to as the release information here), specifically, it can carry a list, which contains The value of the layer 2 identifier of the remote UE that needs to be released.
在接收到上述信息(即，释放信息)后，relay UE释放与remote UE的PC5 RRC连接，这里的remote UE是指层2标识的取值出现在上述列表中的remote UE。以及，relay UE还释放对应于该远端UE的SRAP的配置信息(release the sl-SRAP-Config-Relay associated with the remote UE)。优选的，relay UE释放了PC5 SRAP以及Uu SRAP的配置信息。还可以是relay UE仅释放其中的Uu SRAP的配置信息。After receiving the above information (that is, the release information), the relay UE releases the PC5 RRC connection with the remote UE, where the remote UE refers to the remote UE whose value of the layer 2 identifier appears in the above list. And, the relay UE also releases the SRAP configuration information corresponding to the remote UE (release the sl-SRAP-Config-Relay associated with the remote UE). Preferably, the relay UE releases the configuration information of PC5 SRAP and Uu SRAP. It may also be that the relay UE only releases the configuration information of the Uu SRAP therein.
实施例2Example 2
Relay UE接收来自基站的RRC消息，例如RRC连接重配置消息(RRC connection reconfiguration)，在该消息中携带了用于relay UE的SRAP的配置信息sl-SRAP-Config-Relay(在此记为第1配置信息)。在该配置信息(即，第1配置信息)中可以包含relay UE的Uu SRAP的配置信息，和/或relay UE的PC5 SRAP的配置信息。The Relay UE receives an RRC message from the base station, such as an RRC connection reconfiguration message (RRC connection reconfiguration), in which the SRAP configuration information sl-SRAP-Config-Relay for the relay UE is carried (denoted as the first configuration information). The configuration information (that is, the first configuration information) may include configuration information of Uu SRAP of the relay UE, and/or configuration information of PC5 SRAP of the relay UE.
在接收到上述信息(即，第1配置信息)后，relay UE根据上述信息配置SRAP实体的对应参数(configure the parameters to SRAP entity in accordance with the sl-SRAP-Config-Relay)。After receiving the above information (that is, the first configuration information), the relay UE configures the corresponding parameters of the SRAP entity (configure the parameters to SRAP entity in accordance with the sl-SRAP-Config-Relay) according to the above information.
优选的，这部分参数用于特定的remote UE，即，在配置SRAP的同时，基站还提供了与该SRAP配置相关联的remote UE的信息，例如remote UE的层2标识的取值。则这部分被配置的SRAP的参数与该层2标识的取值对应的remote UE相关联(association)，用于该特定的remote UE。Preferably, these parameters are used for a specific remote UE, that is, while configuring SRAP, the base station also provides information about the remote UE associated with the SRAP configuration, such as the value of the layer 2 identifier of the remote UE. Then this part of the configured SRAP parameters is associated (association) with the remote UE corresponding to the value of the layer 2 identifier, and is used for the specific remote UE.
Relay UE还可以接收来自基站的RRC连接重配置消息，在该消息中携带了释放一个或多个远端UE的信息(在此记为释放信息)，具体可以是携带一个列表，在列表中包含了需要被释放的remote UE的层2标识的取值。The Relay UE can also receive the RRC connection reconfiguration message from the base station, in which the message carries the information of releasing one or more remote UEs (referred to as the release information here), specifically, it can carry a list, which contains The value of the layer 2 identifier of the remote UE that needs to be released.
在接收到上述信息(即，释放信息)后，relay UE释放与remote UE的PC5 RRC连接，这里的remote UE是指层2标识的取值出现在上述列表中的remote UE。After receiving the above information (that is, the release information), the relay UE releases the PC5 RRC connection with the remote UE, where the remote UE refers to the remote UE whose value of the layer 2 identifier appears in the above list.
在relay UE释放与remote UE的PC5 RRC连接时，relay UE可以执行下述操作之一或者多：When the relay UE releases the PC5 RRC connection with the remote UE, the relay UE can perform one or more of the following operations:
释放与该PC5 RRC连接关联的用于relay UE的SRAP配置，例如sl-SRAP-Config-relay配置，Release the SRAP configuration associated with the PC5 RRC connection for the relay UE, such as sl-SRAP-Config-relay configuration,
或者是释放与对应于该PC5 RRC连接的地址相关联的、用于relay UE 的SRAP配置，例如sl-SRAP-Config-relay配置，Or release the SRAP configuration for relay UE associated with the address corresponding to the PC5 RRC connection, such as sl-SRAP-Config-relay configuration,
或者是丢弃与该地址或者该PC5 RRC连接关联的relay操作相关的配置信息(discard the L2 U2N relay operation related configurations)。Or discard the configuration information (discard the L2 U2N relay operation related configurations) associated with the address or the relay operation associated with the PC5 RRC connection.
实施例3Example 3
在实施例2的基础上，当relay UE释放与remote UE的PC5 RRC连接时，remote UE也在与relay UE释放该连接，因此remote UE可以执行下述操作On the basis of Embodiment 2, when the relay UE releases the PC5 RRC connection with the remote UE, the remote UE also releases the connection with the relay UE, so the remote UE can perform the following operations
释放与该PC5 RRC连接关联的用于remote UE的SRAP配置，例如sl-SRAP-Config-remote配置，Release the SRAP configuration for remote UE associated with the PC5 RRC connection, such as sl-SRAP-Config-remote configuration,
或者是释放与对应于该PC5 RRC连接的地址相关联的用于remote UE的SRAP配置，例如sl-SRAP-Config-remote配置，Or release the SRAP configuration for remote UE associated with the address corresponding to the PC5 RRC connection, such as sl-SRAP-Config-remote configuration,
或者是丢弃与该地址或者该PC5连接关联的relay操作相关的配置信息(discard the L2 U2N relay operation related configurations)。Or discard the configuration information (discard the L2 U2N relay operation related configurations) associated with the address or the relay operation associated with the PC5 connection.
上述sl-SRAP-Config-remote配置是指remote UE接收到了来自基站的RRC连接重配置消息，在该消息中携带了用于remote UE的SRAP的配置信息sl-SRAP-Config-Remote(在此记为第2配置信息)。在该配置信息中可以包含remote UE的PC5 SRAP的配置信息。The above sl-SRAP-Config-remote configuration means that the remote UE has received the RRC connection reconfiguration message from the base station, and the message carries the SRAP configuration information sl-SRAP-Config-Remote for the remote UE (recorded here for the 2nd configuration information). The configuration information may include the configuration information of the PC5 SRAP of the remote UE.
实施例4Example 4
由实施例2和3中可见，当一个UE无论是作为remote UE还是relay UE，当其启动PC5 RRC连接释放时，都可以执行下述操作：It can be seen from Embodiments 2 and 3 that when a UE is used as a remote UE or a relay UE, when it starts PC5 RRC connection release, it can perform the following operations:
释放与该PC5 RRC连接关联的SRAP配置，例如sl-SRAP-Config配置，Release the SRAP configuration associated with this PC5 RRC connection, such as the sl-SRAP-Config configuration,
或者是释放与对应于该PC5 RRC连接的地址相关联的SRAP配置，例如sl-SRAP-Config配置。Or release the SRAP configuration associated with the address corresponding to the PC5 RRC connection, such as the sl-SRAP-Config configuration.
或者是丢弃与该地址或者该PC5 RRC连接关联的、与relay操作相关的配置信息(discard the relay operation related configurations)。Or discard the relay operation related configurations (discard the relay operation related configurations) associated with the address or the PC5 RRC connection.
上述过程中的sl-SRAP-Config配置，对于remote UE来说，指的是sl-SRAP-Config-remote，对于relay UE来说，指的是sl-SRAP-Config-relay配置。The sl-SRAP-Config configuration in the above process refers to the sl-SRAP-Config-remote for the remote UE, and refers to the sl-SRAP-Config-relay configuration for the relay UE.
实施例5Example 5
前述实施例中的sl-SRAP-Config配置可以包括如下信息之一或者多：The sl-SRAP-Config configuration in the foregoing embodiments may include one or more of the following information:
远端UE的本地UE标识(local identity，local ID)，这个用于Uu SRAP，以区分远端UE；The local UE identification (local identity, local ID) of the remote UE, which is used for Uu SRAP to distinguish the remote UE;
远端UE的承载标识和RLC信道(可以是Uu RLC或者是PC5 RLC)的映射列表；The mapping list of the bearer identification of the remote UE and the RLC channel (which can be Uu RLC or PC5 RLC);
端到端的Uu承载标识；End-to-end Uu bearer identification;
Uu接口处的RLC信道，例如信道标识；The RLC channel at the Uu interface, such as the channel identifier;
PC5接口处的RLC信道，例如信道标识；RLC channel at the PC5 interface, such as channel identification;
图4是本发明涉及的用户设备UE的简要结构框图。如图4所示，该用户设备UE400包括处理器401和存储器402。处理器401例如可以包括微处理器、微控制器、嵌入式处理器等。存储器402例如可以包括易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器等。存储器402上存储有程序指令。该指令在由处理器401运行时，可以执行本发明详细描述的由用户设备执行的上述方法。Fig. 4 is a brief structural block diagram of the user equipment UE involved in the present invention. As shown in FIG. 4 , the user equipment UE400 includes a processor 401 and a memory 402 . The processor 401 may include, for example, a microprocessor, a microcontroller, an embedded processor, and the like. The memory 402 may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a nonvolatile memory (such as a flash memory), or other memories. Memory 402 has program instructions stored thereon. When the instructions are executed by the processor 401, the above method described in detail in the present invention and executed by the user equipment may be executed.
运行在根据本发明的设备上的程序可以是通过控制中央处理单元(CPU)来使计算机实现本发明的实施例功能的程序。该程序或由该程序处理的信息可以临时存储在易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器***中。The program running on the device according to the present invention may be a program that causes a computer to realize the functions of the embodiments of the present invention by controlling a central processing unit (CPU). The program or information processed by the program may be temporarily stored in volatile memory (such as random access memory RAM), hard disk drive (HDD), non-volatile memory (such as flash memory), or other memory systems.
用于实现本发明各实施例功能的程序可以记录在计算机可读记录介质上。可以通过使计算机***读取记录在所述记录介质上的程序并执行这些程序来实现相应的功能。此处的所谓“计算机***”可以是嵌入在该设备中的计算机***，可以包括操作***或硬件(如***设备)。“计算机可读记录介质”可以是半导体记录介质、光学记录介质、磁性记录介质、短时动态存储程序的记录介质、或计算机可读的任何其他记录介质。A program for realizing the functions of the various embodiments of the present invention can be recorded on a computer-readable recording medium. The corresponding functions can be realized by causing a computer system to read programs recorded on the recording medium and execute the programs. The so-called "computer system" here may be a computer system embedded in the device, which may include an operating system or hardware (such as peripheral devices). The "computer-readable recording medium" may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium in which a short-term dynamic storage program is stored, or any other recording medium readable by a computer.
用在上述实施例中的设备的各种特征或功能模块可以通过电路(例如，单片或多片集成电路)来实现或执行。设计用于执行本说明书所描述的功 能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、或其他可编程逻辑器件、分立的门或晶体管逻辑、分立的硬件组件、或上述器件的任意组合。通用处理器可以是微处理器，也可以是任何现有的处理器、控制器、微控制器、或状态机。上述电路可以是数字电路，也可以是模拟电路。因半导体技术的进步而出现了替代现有集成电路的新的集成电路技术的情况下，本发明的一个或多个实施例也可以使用这些新的集成电路技术来实现。Various features or functional modules of the devices used in the above-mentioned embodiments may be implemented or executed by circuits (for example, single-chip or multi-chip integrated circuits). Circuits designed to perform the functions described in this specification may include general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of the above. A general-purpose processor can be a microprocessor, or it can be any existing processor, controller, microcontroller, or state machine. The above-mentioned circuits may be digital circuits or analog circuits. Where advances in semiconductor technology have resulted in new integrated circuit technologies that replace existing integrated circuits, one or more embodiments of the invention may also be implemented using these new integrated circuit technologies.
此外，本发明并不局限于上述实施例。尽管已经描述了所述实施例的各种示例，但本发明并不局限于此。安装在室内或室外的固定或非移动电子设备可以用作终端设备或通信设备，如AV设备、厨房设备、清洁设备、空调、办公设备、自动贩售机、以及其他家用电器等。In addition, the present invention is not limited to the above-described embodiments. Although various examples of the embodiments have been described, the present invention is not limited thereto. Fixed or non-mobile electronic equipment installed indoors or outdoors can be used as terminal equipment or communication equipment, such as AV equipment, kitchen equipment, cleaning equipment, air conditioners, office equipment, vending machines, and other household appliances.
如上，已经参考附图对本发明的实施例进行了详细描述。但是，具体的结构并不局限于上述实施例，本发明也包括不偏离本发明主旨的任何设计改动。另外，可以在权利要求的范围内对本发明进行多种改动，通过适当地组合不同实施例所公开的技术手段所得到的实施例也包含在本发明的技术范围内。此外，上述实施例中所描述的具有相同效果的组件可以相互替代。As above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific structure is not limited to the above embodiments, and the present invention also includes any design changes that do not deviate from the gist of the present invention. In addition, various changes can be made to the present invention within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments are also included in the technical scope of the present invention. In addition, components having the same effect described in the above embodiments can be substituted for each other.

Claims (10)

  1. 一种由用户设备执行的方法，是远端UE通过中继UE与基站进行通信的过程中执行的方法，包括如下步骤：A method performed by a user equipment is a method performed during a process in which a remote UE communicates with a base station through a relay UE, and includes the following steps:
    中继UE接收来自基站的RRC连接重配置消息，在该消息中携带了用于中继UE的SRAP的配置信息即第1配置信息；The relay UE receives the RRC connection reconfiguration message from the base station, and the message carries the configuration information of SRAP used for the relay UE, that is, the first configuration information;
    在接收到上述第1配置信息之后，中继UE根据上述第1配置信息来配置SRAP实体的对应参数，该参数用于特定的远端UE。After receiving the first configuration information, the relay UE configures corresponding parameters of the SRAP entity according to the first configuration information, and the parameters are used for a specific remote UE.
  2. 根据权利要求1所述的由用户设备执行的方法，其中，The method performed by user equipment according to claim 1, wherein,
    在上述第1配置信息中包含中继UE的Uu SRAP的配置信息和/或中继UE的PC5 SRAP的配置信息。The configuration information of the Uu SRAP of the relay UE and/or the configuration information of the PC5 SRAP of the relay UE are included in the above-mentioned first configuration information.
  3. 根据权利要求1所述的由用户设备执行的方法，其中，The method performed by user equipment according to claim 1, wherein,
    在上述RRC连接重配置消息中还携带了释放一个或多个远端UE的信息即释放信息。The above-mentioned RRC connection reconfiguration message also carries information about releasing one or more remote UEs, that is, release information.
  4. 根据权利要求3所述的由用户设备执行的方法，其中，The method performed by the user equipment according to claim 3, wherein,
    在接收到上述释放信息之后，中继UE释放与远端UE的PC5 RRC连接。After receiving the above release information, the relay UE releases the PC5 RRC connection with the remote UE.
  5. 根据权利要求4所述的由用户设备执行的方法，其中，The method performed by the user equipment according to claim 4, wherein,
    中继UE还释放对应于该远端UE的SRAP的配置信息。The relay UE also releases the SRAP configuration information corresponding to the remote UE.
  6. 根据权利要求4所述的由用户设备执行的方法，其中，The method performed by the user equipment according to claim 4, wherein,
    在中继UE释放与远端UE的PC5 RRC连接时，中继UE或者远端UE执行下述操作的至少一种：When the relay UE releases the PC5 RRC connection with the remote UE, the relay UE or the remote UE performs at least one of the following operations:
    释放与该PC5 RRC连接关联的SRAP配置；release the SRAP configuration associated with the PC5 RRC connection;
    释放与对应于该PC5 RRC连接的地址相关联的SRAP配置；或者是，release the SRAP configuration associated with the address corresponding to the PC5 RRC connection; or,
    丢弃与该地址或者该PC5 RRC连接关联且与中继操作相关的配置信息。Discard configuration information associated with this address or this PC5 RRC connection and related to relay operations.
  7. 根据权利要求6所述的由用户设备执行的方法，其中，The method performed by the user equipment according to claim 6, wherein,
    在中继UE释放与远端UE的PC5 RRC连接时，中继UE执行下述操作的至少一种：When the relay UE releases the PC5 RRC connection with the remote UE, the relay UE performs at least one of the following operations:
    释放与该PC5 RRC连接关联的用于中继UE的SRAP配置；Release the SRAP configuration associated with the PC5 RRC connection for the relay UE;
    释放与对应于该PC5 RRC连接的地址相关联的用于中继UE的SRAP配置；或者是，releasing the SRAP configuration for the relay UE associated with the address corresponding to the PC5 RRC connection; or,
    丢弃与该地址或者该PC5 RRC连接关联且与中继操作相关的配置信息。Discard configuration information associated with this address or this PC5 RRC connection and related to relay operations.
  8. 根据权利要求6所述的由用户设备执行的方法，其中，The method performed by the user equipment according to claim 6, wherein,
    在中继UE释放与远端UE的PC5 RRC连接时，远端UE执行下述操作的至少一种：When the relay UE releases the PC5 RRC connection with the remote UE, the remote UE performs at least one of the following operations:
    释放与该PC5 RRC连接关联的用于远端UE的SRAP配置；Release the SRAP configuration for the remote UE associated with the PC5 RRC connection;
    释放与对应于该PC5 RRC连接的地址相关联的用于远端UE的SRAP配置；或者是，releasing the SRAP configuration for the remote UE associated with the address corresponding to the PC5 RRC connection; or,
    丢弃与该地址或者该PC5 RRC连接关联且与中继操作相关的配置信息。Discard configuration information associated with this address or this PC5 RRC connection and related to relay operations.
  9. 根据权利要求6所述的由用户设备执行的方法，其中，The method performed by the user equipment according to claim 6, wherein,
    上述SRAP配置包括下述信息的至少一个：The above SRAP configuration includes at least one of the following information:
    远端UE的本地UE标识；The local UE identity of the remote UE;
    远端UE的承载标识和RLC信道的映射列表；The bearer identification of the remote UE and the mapping list of the RLC channel;
    端到端的Uu承载标识；End-to-end Uu bearer identification;
    Uu接口处的RLC信道；或者是，the RLC channel at the Uu interface; or,
    PC5接口处的RLC信道。RLC channel at the PC5 interface.
  10. 一种用户设备，包括：A user equipment, comprising:
    处理器；以及processor; and
    存储器，上述存储器上存储有指令，a memory on which instructions are stored,
    上述指令在由上述处理器运行时，使上述用户设备执行根据权利要求1-9中任一项所述的方法。When the above-mentioned instructions are executed by the above-mentioned processor, the above-mentioned user equipment is caused to execute the method according to any one of claims 1-9.
PCT/CN2022/136172 2021-12-02 2022-12-02 Method executed by user equipment and user equipment WO2023098865A1 (en)

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