CN118678485A - Method performed by user equipment and user equipment - Google Patents

Abstract

The invention provides a method executed by user equipment and user equipment, wherein the method executed by the user equipment UE is a processing method executed in the process of communication between the user equipment UE and a base station based on a multi-path communication mode, and comprises the following steps: the UE receives an RRC reconfiguration message from the base station, and the RRC reconfiguration message indicates the UE to add a connection path; after receiving the RRC reconfiguration message, the UE initiates establishment of a connection with a relay UE; and when the UE receives a side link RRC reconfiguration failure message from the relay UE, the UE sends an NR side link UE information message to the base station, wherein the NR side link UE information indicates configuration failure.

Description

Method performed by user equipment and user equipment

Technical Field

The present invention relates to the field of wireless communication technology, and more specifically, to a method performed by a user equipment and a corresponding user equipment.

Background

Within a cell covered by a base station, a user equipment UE may communicate directly with the base station, such a communication connection being referred to as a direct connection (direct connection/link). The UE may also communicate with the base station via a relay UE, which may be referred to as an indirect connection (indirect connection/link) or an indirect connection. In the context of communication with a base station via a relay UE, this UE is referred to as a remote UE (remote UE).

The Remote UE may operate in an indirect connection only mode, which may be referred to as a single path (SINGLE PATH) communication mode. In addition, in order to improve the uplink and downlink transmission rate and throughput of the UE, the UE may also operate in a direct connection mode and an indirect connection mode at the same time. Fig. 1 is a schematic diagram showing a multipath communication scheme which is a parallel operation scheme (multi-path) of direct connection and indirect connection. As shown in fig. 1, in such an operation mode, since different paths (paths) are passed between the UE and the base station, the operation mode may also be referred to as a multipath (multiple paths/multi-path) communication mode.

In fig. 1, wireless communication methods, such as 5G NR or LTE, are generally adopted between a remote UE and a base station and between a relay UE and a base station; the remote UE and the relay UE may communicate in a manner based on side link communication, or in a WIFI communication manner based on hotspot coverage, or in a manner of wired connection.

In order to change the communication mode of the UE from a single connection (direct connection) to a multi-path (direct connection and indirect connection), the base station needs to provide configuration information to the UE. Based on the configuration information, the UE may establish a path for the indirect connection for transmission. Such configuration information may be referred to as configuration information of an added connection path (path addition).

Upon receiving the configuration information, the UE initiates a connection establishment with the relay UE, here exemplified by a PC5 connection establishment. The UE establishes a PC5 connection with the relay UE. After the PC5 connection is established successfully, the UE may send RRCReconfigurationSidelink a message to the target relay UE, where the message may carry indication information to instruct the relay UE to perform a relay related operation, may also carry SL bearer configuration information, and so on, and establish an SL bearer for transmission over the indirect connection.

For the received RRCReconfigurationSidelink message, the relay UE may reply to RRCReconfigurationCompleteSidelink message, indicating an acknowledgement of the message; relayUE may also reply to RRCReconfigurationFailureSidelink message, which happens most often when the relay UE cannot follow (comply) part or all of the configuration in RRCReconfigurationSidelink message.

When the UE receives RRCReconfigurationFailureSidelink message sent by the relay UE, in this case, how the operation of adding the connection path, which the UE is performing, is a problem to be solved.

Disclosure of Invention

In order to solve the above problems, the present invention provides a method performed by a user equipment and the user equipment.

According to a first aspect of the present invention, there is provided a method performed by a UE, which is a processing method performed in a process of performing communication between the UE and a base station based on a multipath communication manner, including the steps of: the UE receives an RRC reconfiguration message from the base station, and the RRC reconfiguration message indicates the UE to add a connection path; after receiving the RRC reconfiguration message, the UE initiates establishment of a connection with a relay UE; and when the UE receives a side link RRC reconfiguration failure message from the relay UE, the UE sends an NR side link UE information message to the base station, wherein the NR side link UE information indicates configuration failure.

In the method of the first aspect, preferably, the UE may start a timer in case the UE starts to establish a connection with the relay UE.

In the method of the first aspect, preferably, the UE may stop the timer when the UE receives a side chain RRC reconfiguration failure message from the relay UE during the timer running.

In the method of the first aspect, preferably, when the UE receives a sidelink RRC reconfiguration failure message from the relay UE, the UE may send an NR sidelink UE information message to the base station if a timer corresponding to the relay UE is not running or a timer is not configured.

In the method of the first aspect, preferably, after the UE sends the NR side link UE information message, the UE may receive an RRC reconfiguration message from the base station, where the RRC reconfiguration message carries reconfiguration information for the relay UE, and the UE may stop the timer or restart the timer.

In the method of the first aspect, preferably, after the UE sends the NR side link UE information message, the UE may receive an RRC reconfiguration message from the base station, where the RRC reconfiguration message carries configuration information related to an added connection path, and the UE restarts the timer when a target relay UE in the configuration information is different from a UE identifier of the relay UE.

In the method of the first aspect, preferably, the UE may restart the timer when the UE receives an RRC reconfiguration message from the base station after the UE has sent the NR side link UE information message, where the RRC reconfiguration message carries information about indirect connection path switching/changing.

In the method of the first aspect, preferably, the UE may release a connection with the relay UE.

In the method of the first aspect, preferably, a destination identifier corresponding to the relay UE may be set in the NR side link UE information.

Furthermore, according to a second aspect of the present invention, there is provided a user equipment comprising: a processor; and a memory storing instructions, wherein the instructions, when executed by the processor, perform the method described above.

Drawings

Fig. 1 is a schematic diagram showing a multipath communication scheme which is a parallel operation scheme (multi-path) of direct connection and indirect connection.

Fig. 2 is a schematic diagram showing a UE-to-Network relay.

Fig. 3 is a flowchart showing a method performed by the user equipment UE according to embodiment 1 of the present invention.

Fig. 4 is a flowchart showing a method performed by the user equipment UE according to embodiment 3 of the present invention.

Fig. 5 is a schematic block diagram of a user equipment according to the present invention.

Detailed Description

The invention is described in detail below with reference to the drawings and the detailed description. 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 well-known techniques, which are not directly related to the present invention, are omitted to prevent confusion of the understanding of the present invention.

Before the detailed description, several terms mentioned in the present invention are explained as follows. Unless otherwise indicated, all terms used in the present invention have the following meanings.

UE: user Equipment;

NR: new Radio, new generation wireless technology;

LTE: long Term Evolution long term evolution technology;

eLTE: enhaced Long Term Evolution, enhanced long term evolution technology;

RRC: radio Resource Control, radio resource control (layer);

MAC: medium Access Control, medium access control (layer);

MAC CE: MAC Control Element, MAC control element;

SDAP: SERVICE DATA Adaptation Protocol, service data adaptive protocol;

SRAP: SIDELINK RELAY Adaptation Protocol, side-uplink relay adaptation protocol;

RLC: radio Link Control, radio link layer control;

PDCP: PACKET DATA Convergence Protocol, packet data convergence protocol;

ADAPT: an Adaptation layer, a side-link communication Adaptation layer;

PHY: PHYSICAL LAYER, physical layer;

RB: a radio bearer;

DRB: data Radio Bearer, data radio bearers;

SRB: SIGNALLING RADIO BEARER signaling radio bearers;

PDU: protocol Data Unit protocol data units;

SDU: SERVICE DATA Unit, service data Unit;

V2X: vehicle-to-Everying, internet of vehicles;

NAS Non-Access-Strateum, non-Access Stratum.

In the present invention, the network, the base station and the RAN are used interchangeably, where the network may be a long term evolution LTE network, a New radio access technology (New RAT, NR) network, an enhanced long term evolution eLTE network, or other networks defined in a later evolution version of 3 GPP.

In the present invention, the UE may refer to an NR device supporting the NR SIDELINK relay function described in the background art, or may refer to an NR device supporting the NR SIDELINK relay architecture, or may refer to other types of NR devices or LTE devices.

In the present invention, sidelink and PC5 may be used interchangeably, and RLC channel (channel), RLC entity and RLC bearer (bearer) may be used interchangeably. And PC5 is used herein for relay operations and thus may also be replaced by relay.

Hereinafter, a description is given of the related art of the present invention.

Single path (SINGLE PATH) communicates with multiple paths (multi-path)

The Remote UE communicates with the base station via a relay UE, which may be referred to as an indirect connection (indirect connection/link) or an indirect connection. The Remote UE may operate in an indirect connection only mode, which may be referred to as a single path (SINGLE PATH) communication mode. In this case, the primary serving cell (PRIMARY CELL, pcell) of the relay UE is the primary serving cell (Pcell) of the Remote UE that it serves.

As shown in fig. 1, the UE and the base station may also communicate simultaneously through a direct connection and an indirect connection. The UE may be configured to operate in both direct-connected and indirect-connected communication modes, which may be referred to as multi-path (multiple paths, MP) communications. Wherein, the path of the direct connection can be called as a direct connection path (DIRECT PATH), and the direct path can use Uu interface for communication; the indirect connection path may be referred to as a relay path (RELAY PATH) or an indirect path (INDIRECT PATH), where the remote UE communicates with the base station through a relay UE, where the relay UE and the base station may communicate using a Uu interface, and the remote UE and the relay UE may communicate using other connection modes, such as a PC5 connection or a WIFI connection.

The path corresponding to the direct connection is a direct connection path (DIRECT PATH), and the path corresponding to the indirect connection is an indirect path (INDIRECT PATH). In the case of multipath, the serving cell to which the direct path corresponds is the primary serving cell (PRIMARY CELL).

It should be noted that the UE may also communicate directly with the base station, which is referred to as a direct connection, which is also a single-path operation mode. The UE may operate in a direct-connected mode only. In this mode, since there is no relay UE, accordingly, such UE cannot be called a remote UE either. In which case the primary serving cell of the UE establishes an RRC connected serving cell for the UE.

As can be seen, the remote UE is relative to the relay UE. The remote UE exists only in a single-path or multi-path scenario where the relay UE exists, and for a single-path scenario where there is no relay UE, such as a direct connection, the UE cannot function as a remote UE.

Adding connection path (path addition)

In order to change the communication mode of the UE from a single connection (direct connection) to a multi-path (direct connection and indirect connection), the base station needs to provide configuration information to the UE. Based on the configuration information, the UE may establish a path for the indirect connection for transmission. Such configuration information may be referred to as configuration information of an added connection path (path addition). The operation performed by the UE after receiving configuration information of the add connection path (path addition) may be considered as an operation associated with the add connection path, and such operation may include one or more of the following operations:

Operation one: the UE initiates connection establishment with the relay UE, here, for example, PC5 connection establishment, and after receiving the configuration information of the added connection path, the UE establishes a PC5 connection with the relay UE.

And (2) operation II: the UE indicates to the relay UE that a cause value (or trigger value) of connection establishment is a relay (relay), or indicates that the cause value is a relay (relay for INDIRECT PATH) that is an indirect connection;

And (3) operation three: the UE may also start a timer for managing the procedure of the path addition (path addition), abbreviated as T-path addition, upon or after receiving configuration information of the path addition. When the timer runs out, the path addition process can be considered to fail, the UE can start a failure report, generate information for reporting the path addition failure to the base station, and send the information to the base station.

The configuration information of the added connection path (path addition) may be configured by a path switching or path changing method. For example, when the UE is currently in a communication manner of single connection (direct connection), then the UE receives configuration information from the base station, and instructs the UE to perform path switching or path change (PATH SWITCH) in the configuration information, and when the UE is in a single connection (direct connection) or is not configured with indirect connection, the UE receives such configuration information for path switching or path change, the base station may consider that an indirect path is added to the UE, that is, a path for indirect connection is added. Or further indicates whether the UE changes to the indicated indirect path or adds an indirect connection path to the existing direct connection, thereby being configured into a multi-connection working mode. Therefore, the configuration information added with the indirect connection path can be independent configuration information or can be configuration information for reusing the existing path change, and the same effect can be achieved. These configuration information may be carried in an RRC reconfiguration message, sent from the base station to the UE.

The direct connection and DIRECT PATH may be interchanged herein; indirect connections, RELAY PATH, and INDIRECT PATH may be interchanged.

The term "mode operating in multipath" may be used interchangeably herein with the term "multipath configured".

Multipath communication may also be replaced by multi-link (multiple connections, multi-link) communication herein.

Near field communication between UEs (UE to UE communication U communication)

The UE and the UE can be in wireless connection in a near field communication mode so as to realize transmission of data or signaling. The near field communication mode mentioned herein mainly refers to a side link (sidelink) connection, but also can be a WIFI connection, or other connection modes. The reference point (REFERENCE POINT) between UEs based on the sidelink connection is referred to as PC5, and thus the sidelink-based connection between UEs may be referred to as PC5 connection. In this context, the sidelink connection (SL link) may be replaced with a PC5 connection (PC 5 link). Such a PC5 connection may be identified by a pair of Layer 2 identifications (a pair of Layer-2 ID), typically including a Source Layer 2 identification (Source Layer-2 ID) and a destination Layer 2 identification (Destination Layer-2 ID). Such a PC5 connection may simply be referred to as a (Destination) PC5 connection, a sidelink connection, etc. for or corresponding to a certain Destination.

UE-to-Network Relay (U2N relay)

Fig. 2 is a schematic diagram showing a UE-to-Network relay. As shown in fig. 2, the far-end UE is on the left side, the relay UE is in the middle, the network is on the right side, and the far-end UE and the relay UE can be connected through the aforementioned PC5 interface, or are WIFI or other connection modes. The PC5 connection is mainly exemplified herein. Wherein the relay UE and the network may be connected through a Uu port. The relay UE relays signaling and data between the remote UE and the network/base station.

Uu interface

Wireless communication interface between UE and base station. The UE may communicate with the eNB over the Uu interface using E-UTRAN. The UE may also employ NR and gNB communication over the Uu interface.

Specific examples will be given below to illustrate the treatment method of the present invention. Further, the examples listed below are only examples and are not limiting of the invention.

Example 1

Hereinafter, example 1 of the present invention will be described in detail. Fig. 3 is a flowchart showing a method performed by the user equipment UE according to embodiment 1 of the present invention. As shown in fig. 3, this embodiment 1 includes the steps that can be:

Step 101: the UE receives an RRC reconfiguration message (RRC Reconfiguration message) from the base station, in which the UE is instructed to add the connection path. The base station may be instructed with configuration information carrying an indirect path in a reconfiguration message. The configuration information includes at least a UE Identity (TARGET RELAY UE-Identity) of the target UE for the indirect path. The target UE here is a relay UE, and may also include configuration information of a physical layer/MAC layer/SL RLC channel or radio bearer, etc.

Step 102: after receiving the RRC reconfiguration message, the UE initiates connection establishment with the relay UE, here exemplified by establishment of a PC5 connection, and after receiving the configuration information of the added connection path, the UE establishes a PC5 connection (PC 5 link) with the target relay UE. The UE may also start a timer T-path add.

Step 103: during the running (running) of the timer T-path add, when the UE receives a side link RRC reconfiguration failure (RRC Reconfiguration Failure Sidelink) message from the above-described relay UE, the UE may stop the timer T-path add, and optionally, the UE sends an NR side link UE information (SidelinkUEInformationNR) message to the base station, in which the configuration failure is indicated (configure failure), and may further set a destination identification (destination identity) corresponding to the destination identification of the relay UE in SidelinkUEInformationNR message, thereby indicating that the configuration for the relay UE has failed. Preferably, the destination identifier here may be set to TARGET RELAY UE-Identity received in step 101.

Example 2

Hereinafter, example 2 of the present invention will be described in detail, and differences from example 1 will be mainly described.

Example 2 differs from example 1 in step 103. Specifically, in this embodiment, when the UE receives RRCReconfigurationFailureSidelink messages sent by the relay UE during the running (running) of the timer T-path add, the UE may not initiate the operation of sending SidelinkUEInformationNR messages to the base station.

Yet another implementation of this embodiment may be that, when receiving RRCReconfigurationFailureSidelink a message sent from a certain relay UE, if the T-path add corresponding to the relay UE or to the destination (destination) identifying the UE is not running or is not configured, the UE may initiate an operation of sending SidelinkUEInformationNR a message to the base station and indicate a configuration failure in the message (configure failure), and may also set the destination identification (destination identity) corresponding to the destination identification of the UE in SidelinkUEInformationNR message.

Additionally, if the UE, when receiving RRCReconfigurationFailureSidelink messages sent from a certain relay UE, does not perform the operation of sending SidelinkUEInformationNR messages to the base station if the T-path add corresponding to the relay UE or to the destination (destination) identifying the UE is running.

Example 3

Hereinafter, example 3 of the present invention will be described in detail. Fig. 4 is a flowchart showing a method performed by the user equipment UE according to embodiment 3 of the present invention. As shown in fig. 4, this embodiment 3 may include the steps of:

Step 201: the UE receives an RRC reconfiguration message (RRC Reconfiguration message) from the base station, in which the UE is instructed to add the connection path. The base station may be instructed with configuration information carrying an indirect path in a reconfiguration message. The configuration information may include UE Identity (TARGET RELAY UE-Identity) of the target UE for the indirect path. The target UE here is a relay UE, and may also include configuration information of a physical layer/MAC layer/SL RLC channel or radio bearer, etc.

Step 202: after receiving the RRC reconfiguration message, the UE initiates connection establishment with relayUE, here exemplified by establishment of a PC5 connection, and after receiving the configuration information of the added connection path, the UE establishes a PC5 connection with the target relay UE. The UE may also start a timer T-path add.

Step 203: during the timer T-path add operation (running), when the UE receives RRCReconfigurationFailureSidelink message from the relay UE, the UE sends SidelinkUEInformationNR message to the base station, and the message indicates that the configuration fails (configure failure).

Step 204: after transmitting the SidelinkUEInformationNR message, the UE receives a RRCReconfiguration message sent from the base station, where reconfiguration information for the relay UE is carried in the message, and then the UE may stop the timer T-path add or restart the T-path add.

Example 4

Hereinafter, example 4 of the present invention will be described in detail, and differences from example 3 will be mainly described.

Example 4 differs from example 3 in step 204.

In this embodiment, after the UE transmits the SidelinkUEInformationNR message, if the UE receives the RRC Reconfiguration message sent from the base station, the message carries configuration information related to the path attachment, and the UE identity of the target relay UE is different from that of the target relay UE in step 201, or carries information related to indirect connection path switching/changing (switch), then the UE may restart the T-path add, and optionally, the UE releases the connection, for example, PC5 connection, with the target relay UE in step 201.

Example 5

Based on embodiments 1-4, the UE may also receive indication information sent from the base station, indicating that the path addition is completed successfully, or indicating that the relay UE is already connected, and then the UE may stop the timer T-path add after receiving the indication information.

Such indication information may be carried in an RRC message or in a MAC CE.

If carried in the MAC CE, the RRC layer of the UE may stop the timer T-path add after receiving an indication from a lower layer (e.g., MAC layer).

This embodiment may be used in combination with the previous embodiments or may be used alone.

Fig. 5 is a schematic block diagram of a user equipment according to the present invention.

As shown in fig. 5, the user equipment 500 includes at least a processor 501 and a memory 502. The processor 501 may include, for example, a microprocessor, microcontroller, embedded processor, or the like. The memory 502 may include, for example, volatile memory (such as random access memory RAM), a Hard Disk Drive (HDD), non-volatile memory (such as flash memory), or other memory systems. The memory 502 has stored thereon program instructions. The instructions, when executed by the processor 501, may perform one or more steps in a processing method of a UE of the present disclosure.

The method of the present disclosure and the apparatus involved have been described above in connection with the preferred embodiments. It will be appreciated by those skilled in the art that the methods shown above are merely exemplary and that the embodiments described above can be combined with one another without contradiction. The method of the present invention is not limited to the steps and sequences shown above.

The user equipment shown above may comprise further modules, e.g. modules that may be developed or developed in the future, available for a base station, MME, or UE, etc. The various identifiers shown above are merely exemplary and are not limiting, and the present disclosure is not limited to specific cells as examples of such identifiers. Many variations and modifications may be made by one of ordinary skill in the art in light of the teachings of the illustrated embodiments.

It should be understood that the above-described embodiments of the present disclosure may be implemented by software, hardware, or a combination of both software and hardware. For example, the various components within the base station and user equipment in the above embodiments may be implemented by a variety of means including, but not limited to: analog circuit devices, digital Signal Processing (DSP) circuits, programmable processors, application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs), programmable logic devices (CPLDs), and the like.

Further, the program running on the apparatus according to the present invention may be a program for causing 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 a volatile store such as a random access memory RAM, a Hard Disk Drive (HDD), a nonvolatile store such as a flash memory, or other memory system.

A program for realizing the functions of the embodiments of the present invention may 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 term "computer system" as used herein may be a computer system embedded in the device and may include an operating system or hardware (e.g., 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 program is stored dynamically at a short time, or any other recording medium readable by a computer.

The various features or functional modules of the apparatus used in the embodiments described above may be implemented or performed by circuitry (e.g., single-chip or multi-chip integrated circuits). Circuits designed to perform the functions described herein may include a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The circuit may be a digital circuit or an analog circuit. Where new integrated circuit technologies are presented as an alternative to existing integrated circuits due to advances in semiconductor technology, one or more embodiments of the present invention may also be implemented using these new integrated circuit technologies.

Furthermore, 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 devices installed indoors or outdoors may be used as terminal devices or communication devices such as AV devices, kitchen devices, cleaning devices, air conditioners, office devices, vending machines, and other home appliances, etc.

As above, the embodiments of the present invention have been described in detail with reference to the accompanying drawings. The specific structure is not limited to the above-described embodiment, but the present invention also includes any design modification without departing from the gist of the present invention. In addition, various modifications can be made to the present invention within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in the different embodiments are also included in the technical scope of the present invention. Further, the components having the same effects described in the above embodiments may be replaced with each other.

Claims (10)

1. The method executed by the user equipment UE is a processing method executed in a process of communication between the user equipment UE and a base station based on a multi-path communication mode, and includes the following steps:

the UE receives an RRC reconfiguration message from the base station, and the RRC reconfiguration message indicates the UE to add a connection path;

after receiving the RRC reconfiguration message, the UE initiates establishment of a connection with a relay UE; and

And when the UE receives a side link RRC reconfiguration failure message from the relay UE, the UE sends an NR side link UE information message to the base station, wherein the NR side link UE information indicates configuration failure.

2. The method of claim 1, wherein,

After the UE receives the RRC reconfiguration message, the UE starts a timer.

3. The method of claim 2, wherein,

And when the UE receives a side chain RRC reconfiguration failure message from the relay UE during the running of the timer, the UE stops the timer.

4. The method of claim 1, wherein,

When the UE receives a sidelink RRC reconfiguration failure message from the relay UE, the UE transmits an NR sidelink UE information message to the base station in a case that a timer corresponding to the relay UE is not running or a timer is not configured.

5. The method of claim 2, wherein,

After the UE sends the NR side link UE information message, the UE receives an RRC reconfiguration message from the base station, where the RRC reconfiguration message carries reconfiguration information for the relay UE, and if the UE stops the timer or restarts the timer.

6. The method of claim 2, wherein,

After the UE sends the NR side link UE information message, the UE receives an RRC reconfiguration message from the base station, where the RRC reconfiguration message carries configuration information related to adding a connection path, and if a UE identity of a target relay UE in the configuration information is different from a UE identity of the relay UE, the UE restarts the timer.

7. The method of claim 2, wherein,

After the UE sends the NR side link UE information message, the UE receives an RRC reconfiguration message from the base station, where the RRC reconfiguration message carries information about indirect connection path switching/changing, and restarts the timer.

8. The method according to claim 6 or 7, wherein,

The UE releases a connection with the relay UE.

9. The method according to claim 1 or 2, wherein,

And setting a destination identifier corresponding to the relay UE in the NR side link UE information.

10. A user equipment, comprising:

A processor; and

A memory in which instructions are stored,

Wherein the instructions, when executed by the processor, perform the method according to any one of claims 1 to 9.