WO2023241670A1 - 端到端通信建立方法及系统 - Google Patents

端到端通信建立方法及系统 Download PDF

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Publication number
WO2023241670A1
WO2023241670A1 PCT/CN2023/100530 CN2023100530W WO2023241670A1 WO 2023241670 A1 WO2023241670 A1 WO 2023241670A1 CN 2023100530 W CN2023100530 W CN 2023100530W WO 2023241670 A1 WO2023241670 A1 WO 2023241670A1
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Prior art keywords
relay
target
source
configuration
srb
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PCT/CN2023/100530
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English (en)
French (fr)
Inventor
徐万夫
汪梦珍
陈琳
戚涛
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中兴通讯股份有限公司
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Publication of WO2023241670A1 publication Critical patent/WO2023241670A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup

Definitions

  • Embodiments of the present invention relate to the field of communications, and specifically, to an end-to-end communication establishment method and system.
  • D2D device-to-device
  • Proximity Services ProSe
  • Sidelink, SL segmentlink
  • SL-based relay communications can expand coverage and improve power consumption, such as in indoor relay communications, smart agriculture, smart factories, and public safety.
  • SL relay communication mainly has the following two application scenarios:
  • UE-to-Network relay User Equipment (UE) relay transmission in weak/no coverage areas, allowing UE1 with poor signal quality or no coverage to communicate with the network through UE2 with nearby network coverage. , can help operators expand coverage and improve capacity; UE2 is called UE-to-Network relay, and UE1 is called remote UE.
  • UE User Equipment
  • UE-to-UE relay In the event of an earthquake or emergency, when the cellular network cannot work normally or in order to extend the SL communication range, communication between devices is allowed through the relay UE, for example, between UE3 and UE4 UE5 or multi-hop relay UE performs data communication, where UE5 is called UE-to-UE relay.
  • New Radio New, Radio, NR
  • LTE SL communication mechanisms such as frame structure, quality of service (QoS) processing, and bearer configuration and establishment
  • LTE-based SL relay technology solution Not applicable to 5G/NR systems.
  • the relay UE helps it forward data with the network/target UE. How the source UE connects and communicates with the target UE through the relay UE is a problem that needs to be solved.
  • Embodiments of the present invention provide an end-to-end communication establishment method and system to at least solve the problem in the related art that the source UE and the target UE communicate through the relay UE connection.
  • an end-to-end communication establishment method including: a source user equipment UE in a radio resource control connection RRC CONNECTED state determines to establish an end-to-end direct connection with a target UE through a selected relay UE. Link; the source UE sends a first request to the base station for establishing an end-to-end direct link between the source UE and the target UE.
  • the first request information includes at least one of the following: SL-SRB list, target UE identity, relay UE identity, SL-DRB list; the source UE receives the first configuration information issued by the base station , and establish an end-to-end direct link with the target UE through the selected relay UE according to the first configuration information.
  • an end-to-end communication establishment system including a source user equipment UE in a radio resource control connection RRC CONNECTED state, a target UE, and a relay UE in a radio resource control connection RRC CONNECTED state.
  • the source UE includes: a determining module configured to determine to establish an end-to-end direct link with the target UE through the selected relay UE; a first sending module configured to send to the base station a method for establishing the said The first request information for the end-to-end direct link between the source UE and the target UE, wherein the first request information includes at least one of the following: SL-SRB list, target UE identity, relay UE identity, SL -DRB list; the first receiving module is configured to receive the first configuration information issued by the base station, and establish an end-to-end direct connection with the target UE through the selected relay UE according to the first configuration information link.
  • a computer-readable storage medium is also provided.
  • a computer program is stored in the computer-readable storage medium, wherein the computer program is configured to execute any of the above methods when running. Steps in Examples.
  • an electronic device including a memory and a processor.
  • a computer program is stored in the memory, and the processor is configured to run the computer program to perform any of the above. Steps in method embodiments.
  • Figure 1 is a structural block diagram of an end-to-end communication system according to an embodiment of the present invention
  • Figure 2 is a flow chart of an end-to-end communication establishment method according to an embodiment of the present invention.
  • Figure 3 is a structural block diagram of an end-to-end communication establishment system according to an embodiment of the present invention.
  • Figure 4 is a structural block diagram of an end-to-end communication establishment system according to yet another embodiment of the present invention.
  • Figure 5 is a structural block diagram of an end-to-end communication establishment system according to another embodiment of the present invention.
  • Figure 6 is a schematic diagram of a method for establishing end-to-end communication between a source UE and a relay UE according to an embodiment of the present invention
  • Figure 7 is a schematic diagram of a method for establishing end-to-end communication between a relay UE and a target UE according to an embodiment of the present invention
  • Figure 8 is a schematic diagram of a UE in the RRC INACTIVE state obtaining configuration information according to an embodiment of the present invention
  • Figure 9 is a schematic diagram of feedback on wireless link failure between the relay UE and the target UE according to an embodiment of the present invention.
  • Figure 10 is a schematic diagram of a target terminal rejecting end-to-end link configuration according to an embodiment of the present invention.
  • Figure 11 is a schematic diagram of a switching connection method between a relay terminal and a target terminal according to an embodiment of the present invention.
  • Figure 1 is a structural block diagram of an end-to-end communication system according to an embodiment of the present invention.
  • the system includes a source UE, a relay UE and a target UE.
  • the relay UE can be used to help forward data between the source UE and the target UE to ensure normal communication between the source UE and the target UE.
  • FIG. 1 is the basic A flow chart of an end-to-end communication establishment method according to an embodiment of the present invention. The process includes the following steps:
  • Step S202 The source user equipment UE in the radio resource control connection RRC CONNECTED state determines to establish an end-to-end direct link with the target UE through the selected relay UE;
  • Step S204 The source UE sends first request information for establishing an end-to-end direct link between the source UE and the target UE to the base station, where the first request information includes at least one of the following: SL-SRB list, target UE identification, relay UE identification, SL-DRB list;
  • Step S206 The source UE receives the first configuration information issued by the base station, and establishes an end-to-end direct link with the target UE through the selected relay UE according to the first configuration information.
  • the first configuration information includes at least one of the following: end-to-end direct link configuration, link configuration between the source UE and the relay UE.
  • the method further includes: the source UE receiving the end-to-end SL-SRB and/or first hop configuration of SL-DRB between the source UE and the relay UE sent by the base station. ;
  • the source UE sends to the relay UE the second configuration information of the first hop configuration of the end-to-end SL-SRB and/or SL-DRB between the source UE and the relay UE, wherein,
  • the second configuration information includes at least one of the following: the layer 2 identification of the target UE, the first hop SL-RLC configuration, and the first hop SRAP configuration; the source UE receives the relay UE and receives the second configuration information.
  • the method further includes: the relay UE in the radio resource control connection RRC CONNECTED state sends a message to the base station to establish the connection between the relay UE and Second request information for end-to-end SL-SRB and/or SL-DRB between target UEs, where the second request information includes at least one of the following: SL-SRB list, layer 2 identification of the source UE, SL-DRB list; the relay UE receives the end-to-end SL-SRB and/or second hop configuration of SL-DRB between the relay UE and the target UE sent by the base station, wherein the The second configuration of end-to-end SL-SRB and/or SL-DRB between the relay UE and the target UE at least includes: the layer 2 identifier of the source UE and the layer 2 identifier of the target UE; the relay UE Send the third configuration information of the second hop configuration of the end-to-end SL-
  • the second feedback information is acceptance of the third configuration information or rejection of the third configuration information fed back by the target UE.
  • the method further includes: completing end-to-end SL between the source UE and the target UE. -Establishment of SRB and/or SL-DRB.
  • the method further includes: when the relay UE detects the target When the wireless link between the UE and the relay UE fails, the relay UE notifies the source UE of wireless link failure information, where the wireless link failure information at least includes: the layer 2 identification of the target UE; The source UE reports the received radio link failure information to the base station.
  • the method further includes: the relay UE notifies the source UE of configuration failure information.
  • the configuration failure information at least includes: the layer 2 identification of the target UE; the source UE reports the received configuration failure information to the base station.
  • the method further includes: when the relay UE and the target UE When switching from a direct link to an indirect link, all The relay UE notifies the source UE of the link switching between the relay UE and the target UE; and the source UE reports the link switching to the base station.
  • an end-to-end SL between the source UE and the relay UE is established in a preconfigured manner.
  • -SRB and/or SL-DRB or establish end-to-end SL-SRB and/or SL-DRB between the relay UE and the target UE, or establish between the source UE and the target UE
  • the source UE obtains the first configuration information issued by the base station through the first request information, wherein the first request information at least includes the SL-SRB list, and selects the SL-SRB list according to the first configuration information.
  • the relay UE establishes an end-to-end direct link with the target UE. This solves the problem in the related art that the source UE and the target UE communicate through the relay UE connection.
  • the method according to the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is Better implementation.
  • the technical solution of the present invention can be embodied in the form of a software product in nature or in part that contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as read-only memory/random access memory).
  • the memory Read-Only Memory/Random Access Memory, ROM/RAM), magnetic disk, optical disk
  • ROM/RAM Read-Only Memory/Random Access Memory
  • magnetic disk magnetic disk
  • optical disk includes several instructions to cause a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the present invention. Methods described in various embodiments.
  • This embodiment also provides an end-to-end communication establishment system, which is used to implement the above-mentioned embodiments and preferred implementations. What has already been described will not be described again.
  • the term "module” may be a combination of software and/or hardware that implements a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 3 is a structural block diagram of an end-to-end communication establishment system according to an embodiment of the present invention.
  • the system includes: a source user equipment UE 10 in a radio resource control connection RRC CONNECTED state, a target UE 20, Resource control connects the relay UE 30 in the RRC CONNECTED state and the base station 40, where the source UE 10 includes:
  • Determining module 11 configured to determine to establish an end-to-end direct link with the target UE through the selected relay UE;
  • the first sending module 12 is configured to send first request information for establishing an end-to-end direct link between the source UE and the target UE to the base station, wherein the first request information includes at least one of the following: : SL-SRB list, target UE identity, relay UE identity, SL-DRB list;
  • the first receiving module 13 is configured to receive the first configuration information issued by the base station, and establish an end-to-end direct link with the target UE through the selected relay UE according to the first configuration information.
  • the second receiving module 14 is configured to receive the end-to-end SL-SRB and/or first hop configuration of SL-DRB between the source UE and the relay UE sent by the base station;
  • the second sending module 15 is configured to send the end-to-end SL-SRB between the source UE and the relay UE to the relay UE. and/or the second configuration information of the first hop configuration of SL-DRB, wherein the second configuration information includes at least one of the following: the layer 2 identification of the target UE, the first hop SL-RLC configuration, the first hop SRAP configuration;
  • the third receiving module 16 is configured to receive the first feedback information sent by the relay UE after receiving the second configuration information.
  • the first configuration information includes at least one of the following: end-to-end direct link configuration, link configuration between the source UE and the relay UE.
  • FIG 4 is a structural block diagram of an end-to-end communication establishment system according to another embodiment of the present invention.
  • the base station includes:
  • the first sending module 21 is configured to send the first hop configuration of the end-to-end SL-SRB and/or SL-DRB between the source UE and the relay UE to the source UE.
  • the second sending module 22 is configured to send the second hop configuration of the end-to-end SL-SRB and/or SL-DRB between the relay UE and the target UE to the relay UE.
  • Figure 5 is a structural block diagram of an end-to-end communication establishment system according to yet another embodiment of the present invention.
  • the relay UE includes:
  • the first sending module 31 is configured to send to the base station second request information for establishing end-to-end SL-SRB and/or SL-DRB between the relay UE and the target UE, wherein the second request
  • the information includes at least one of the following: SL-SRB list, layer 2 identification of the source UE, and SL-DRB list;
  • the first receiving module 32 is configured to receive the end-to-end SL-SRB and/or second hop configuration of SL-DRB between the relay UE and the target UE sent by the base station, wherein the relay UE
  • the second hop configuration of the end-to-end SL-SRB and/or SL-DRB with the target UE at least includes: the layer 2 identifier of the source UE and the layer 2 identifier of the target UE;
  • the second sending module 33 is configured to send the third configuration information of the second hop configuration of the end-to-end SL-SRB and/or SL-DRB between the relay UE and the target UE to the target UE, where:
  • the third configuration information includes at least one of the following: source UE identification, second hop SRAP configuration, and second hop SL-RLC configuration;
  • the second receiving module 34 is configured to receive the second feedback information sent by the target UE after receiving the third configuration information.
  • the first notification module 35 is configured to change the link between the relay UE and the target UE when the direct link between the relay UE and the target UE is switched to an indirect link. The switching is notified to the source UE, so that the source UE reports the link switching to the base station.
  • the second notification module 36 is configured to notify the source UE of configuration failure information when the relay UE receives the configuration rejection information sent by the target UE, so that the source UE reports the configuration failure information to The base station, wherein the configuration failure information at least includes: the layer 2 identification of the target UE.
  • each of the above modules can be implemented through software or hardware.
  • it can be implemented in the following ways, but is not limited to this: the above modules are all located in the same processor; or the above modules can be implemented in any combination.
  • the forms are located in different processors.
  • Figure 6 is a schematic diagram of a method for establishing end-to-end communication between a source UE and a relay UE according to an embodiment of the present invention. The method includes the following steps:
  • Step S601 The source terminal sends request information to the base station to establish an end-to-end SL signaling bearer link with the target base station.
  • the request information at least includes: SL-SRB list;
  • Step S602 The base station sends the one-hop configuration between the source terminal and the relay terminal to the source terminal;
  • Step S603 The relay terminal receives the configuration information sent by the source terminal and feeds it back to the source terminal;
  • Step S604 After receiving the feedback from the relay terminal, the source terminal sends end-to-end SL-SRB and/or SL-DRB related signaling information to the relay terminal, where the related information at least includes: target Terminal L2ID.
  • Figure 7 is a schematic diagram of a method for establishing end-to-end communication between a relay UE and a target UE according to an embodiment of the present invention. The method includes the following steps:
  • Step S701 The relay terminal sends request information to the base station to establish an end-to-end SL-SRB link with the target terminal, where the request information at least includes: the source terminal of the end-to-end SL-SRB and/or SL-DRB. L2 ID.
  • Step S702 After receiving the request information sent by the relay terminal, the base station sends a one-hop configuration between the relay terminal and the relay target terminal to the relay terminal, where the one-hop configuration at least includes: end-to-end The source terminal L2 ID and destination terminal L2 ID of the end SL-srb and/or SL DRB.
  • Step S703 The target terminal receives the configuration information sent by the relay terminal and feeds back the received configuration information to the relay terminal.
  • Step S704 The relay terminal sends the end-to-end SL-SRB and SL-DRB related configuration information to the target terminal.
  • the UE in the RRC IDLE state establishes the end-to-end SL-SRB and/or SL-DRB between the source UE and the relay UE or establishes the intermediate UE through preconfiguration.
  • the end-to-end SL-SRB and/or SL-DRB between the UE and the target UE or establishing the end-to-end SL-SRB and/or SL-DRB between the source UE and the target UE.
  • Figure 8 is a schematic diagram of a UE in a radio resource control inactive RRC INACTIVE state obtaining configuration information according to an embodiment of the present invention.
  • a UE in a radio resource control inactive RRC INACTIVE state establishes the configuration information through the system information block SIB12. End-to-end SL-SRB and/or SL-DRB between the source UE and the relay UE, or establishing end-to-end SL-SRB and/or SL-DRB between the relay UE and the target UE.
  • the system information block includes a timer for end-to-end RRC ReconfigurationSidelink, and the timer value includes at least 3000ms and 4000ms.
  • the source terminal maps the corresponding relationship between the end-to-end SL-DRB corresponding to the same quality of service QoS flow and the SL-RLC of the corresponding hop.
  • Figure 9 is a schematic diagram of feedback on the failure of the wireless link between the relay UE and the target UE according to an embodiment of the present invention.
  • Feedback on the failure of the wireless link between the relay UE and the target UE includes the following steps:
  • Step S901 The relay terminal detects the RLF between the target terminal and the relay terminal.
  • Step S902 The relay terminal notifies the source terminal RLF, and the information at least includes the L2 ID of the target terminal.
  • Step S903 The source terminal reports the RLF between the relay terminal and the target terminal to the gNB.
  • FIG. 10 is a schematic diagram of the target terminal rejecting the end-to-end link configuration according to an embodiment of the present invention.
  • the target terminal rejecting the end-to-end link configuration includes the following steps:
  • Step S1001 The relay terminal sends the one-hop configuration of the SRAP layer and RLC of the end-to-end SL-SRB and/or SL-DRB between the relay terminal and the target terminal to the target terminal.
  • Step S1002 The target terminal rejects the configuration and sends RRCReconfigurationFailureSidelink message.
  • Step S1003 The relay terminal notifies the source terminal of the configuration failure, and the notification information at least contains the L2 ID information of the target terminal.
  • Step S1004 The source terminal reports the configuration failure between the relay terminal and the target terminal to the base station.
  • FIG 11 is a schematic diagram of a switching connection mode between a relay terminal and a target terminal according to an embodiment of the present invention.
  • the switching includes the following steps:
  • Step S1101 Switch from direct connection to indirect connection between the relay terminal and the target terminal;
  • Step S1102 The relay terminal notifies the source terminal of the switch
  • Step S1103 The source terminal reports relay terminal switching information to the base station.
  • Embodiments of the present invention also provide a computer-readable storage medium that stores a computer program, wherein the computer program is configured to execute the steps in any of the above method embodiments when running.
  • the computer-readable storage medium may include but is not limited to: U disk, read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM) , mobile hard disk, magnetic disk or optical disk and other media that can store computer programs.
  • ROM read-only memory
  • RAM random access memory
  • mobile hard disk magnetic disk or optical disk and other media that can store computer programs.
  • An embodiment of the present invention also provides an electronic device, including a memory and a processor.
  • a computer program is stored in the memory, and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.
  • the above-mentioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the above-mentioned processor, and the input-output device is connected to the above-mentioned processor.
  • each module or each step of the above-mentioned embodiments of the present invention can be implemented by a general-purpose computing device. They can be concentrated on a single computing device, or distributed among multiple computing devices. over a network, they may be implemented with program code executable by a computing device, such that they may be stored in a storage device for execution by the computing device, and in some cases, may be executed in a sequence different from that described here.
  • the steps shown or described may be implemented by fabricating them separately into individual integrated circuit modules, or by fabricating multiple modules or steps among them into a single integrated circuit module. As such, the invention is not limited to any specific combination of hardware and software.

Abstract

本发明实施例提供了一种端到端通信建立方法及系统。该方法包括:处于无线资源控制连接状态的源用户设备UE确定通过选定的中继UE与目标UE建立端到端直通链路;所述源UE向基站发送用于建立所述源UE与目标UE之间的端到端直通链路的第一请求信息,其中,所述第一请求信息中至少包括以下之一:SL-SRB列表、目标UE标识、中继UE标识、SL-DRB列表;所述源UE收到基站下发的第一配置信息,并根据所述第一配置信息通过选定的所述中继UE与所述目标UE建立端到端直通链路。

Description

端到端通信建立方法及系统 技术领域
本发明实施例涉及通信领域,具体而言,涉及一种端到端通信建立方法及系统。
背景技术
随着无线多媒体业务的发展,一方面,人们对高数据速率和用户体验的需求日益增长,从而对传统蜂窝网络的系统容量和覆盖范围提出了更高要求;另一方面,公共安全、社交网络、近距离数据共享以及本地广告等应用场景使得人们对了解附近的人或事物并与之通信(即邻近服务)的需求也逐渐增加。
传统的以基站为中心的蜂窝网络在高数据速率以及邻近服务的支持方面存在明显的局限性,因此,在上述需求背景下,设备到设备(Device-to-Device,D2D)通信技术应运而生。D2D技术的应用,可以减轻蜂窝网络的负担、减少用户设备的电池功耗、提高数据速率,并改善网络基础设施的鲁棒性,能够很好地满足上述高数据速率业务和邻近服务的要求。D2D技术又称之为邻近服务(Proximity Services,ProSe),是单边/旁链/直通链路(Sidelink,SL)通信,设备与设备之间的接口为PC5接口。
为了支持更广范围的应用和服务,基于SL的中继(relay)通信可以扩展覆盖和改善功耗,如应用于室内中继通信、智能农业、智能工厂以及公共安全等。SL中继通信主要有如下两种应用场景:
1)UE-to-Network relay:在弱/无覆盖区域的用户设备(User Equipment,UE)中继传输,允许信号质量较差的或无覆盖的UE1通过附近有网络覆盖的UE2与网络进行通信,能帮助运营商扩展覆盖、提高容量;其中UE2称为UE-to-Network relay,UE1称为远端remote UE。
2)UE-to-UE relay:在发生地震或紧急情况时,蜂窝网络不能正常工作的情况下或者为了扩展SL通信范围,允许设备间通过中继UE进行通信,例如,UE3和UE4之间通过UE5或多跳中继UE进行数据通信,其中UE5称为UE-to-UE relay。
由于新空口(New,Radio,NR)SL通信与LTE SL通信机制存在较大差别,如帧结构、服务质量(Quality of service,QoS)处理以及承载配置及建立等,基于LTE的SL relay技术方案并不适用于5G/NR系统。对于源UE,当信号质量较差或在覆盖外时通过中继UE帮助其与网络/目标UE之间转发数据,源UE如何通过中继UE与目标UE连接通信是一个需要解决的问题。
发明内容
本发明实施例提供了一种端到端通信建立方法及系统,以至少解决相关技术中源UE与目标UE通过中继UE连接通信的问题。
根据本发明的一个实施例,提供了一种端到端通信建立方法,包括:处于无线资源控制连接RRC CONNECTED状态的源用户设备UE确定通过选定的中继UE与目标UE建立端到端直通链路;所述源UE向基站发送用于建立所述源UE与目标UE之间的端到端直通链路的第一请求 信息,其中,所述第一请求信息中至少包括以下之一:SL-SRB列表、目标UE标识、中继UE标识、SL-DRB列表;所述源UE收到基站下发的第一配置信息,并根据所述第一配置信息通过选定的所述中继UE与所述目标UE建立端到端直通链路。
根据本发明的另一个实施例,提供了一种端到端通信建立系统,包括处于无线资源控制连接RRC CONNECTED状态的源用户设备UE、目标UE、处于无线资源控制连接RRC CONNECTED状态的中继UE和基站,其中,所述源UE包括:确定模块,设置为确定通过选定的中继UE与目标UE建立端到端直通链路;第一发送模块,设置为向基站发送用于建立所述源UE与目标UE之间的端到端直通链路的第一请求信息,其中,所述第一请求信息中至少包括以下之一:SL-SRB列表、目标UE标识、中继UE标识、SL-DRB列表;第一接收模块,设置为接收所述基站下发的第一配置信息,并根据所述第一配置信息通过选定的所述中继UE与所述目标UE建立端到端直通链路。
根据本发明的又一个实施例,还提供了一种计算机可读存储介质,所述计算机可读存储介质中存储有计算机程序,其中,所述计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
根据本发明的又一个实施例,还提供了一种电子装置,包括存储器和处理器,所述存储器中存储有计算机程序,所述处理器被设置为运行所述计算机程序以执行上述任一项方法实施例中的步骤。
附图说明
图1是根据本发明实施例的端到端通信系统的结构框图;
图2是根据本发明实施例的端到端通信建立方法的流程图;
图3是根据本发明实施例的端到端通信建立系统的结构框图;
图4是根据本发明再一实施例的端到端通信建立系统的结构框图;
图5是根据本发明另一实施例的端到端通信建立系统的结构框图;
图6是根据本发明实施例的源UE与中继UE建立端到端通信的方法示意图;
图7是根据本发明实施例的中继UE与目标UE建立端到端通信的方法示意图;
图8是根据本发明实施例的RRC INACTIVE状态的UE获取配置信息的示意图;
图9是根据本发明实施例的反馈中继UE与目标UE无线链路失败的示意图;
图10是根据本发明实施例的目标终端拒绝端到端链路配置的示意图;
图11是根据本发明实施例的中继终端与目标终端之间的切换连接方式的示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明的实施例。
需要说明的是,本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。
图1是根据本发明实施例的端到端通信系统的结构框图,如图1所示,该系统包括源UE、中继UE和目标UE,当源UE处于信号质量较差或网络覆盖已外时,可通过中继UE帮助其与目标UE之间转发数据,以保证源UE与目标UE之间正常通信。
在本实施例中提供了一种运行于上述端到端通信系统的端到端通信建立方法,图2是根 据本发明实施例的端到端通信建立方法的流程图,如图2所示,该流程包括如下步骤:
步骤S202,处于无线资源控制连接RRC CONNECTED状态的源用户设备UE确定通过选定的中继UE与目标UE建立端到端直通链路;
步骤S204,所述源UE向基站发送用于建立所述源UE与目标UE之间的端到端直通链路的第一请求信息,其中,所述第一请求信息中至少包括以下之一:SL-SRB列表、目标target UE标识、中继relay UE标识、SL-DRB列表;
步骤S206,所述源UE收到基站下发的第一配置信息,并根据所述第一配置信息通过选定的所述中继UE与所述目标UE建立端到端直通链路。
在一个示例性实施例中,其中,所述第一配置信息至少包括以下之一:端到端直通链路配置、源UE与中继UE之间的链路配置。
在本实施例的步骤S204之后,还包括:所述源UE接收所述基站发送的所述源UE与中继UE之间的端到端SL-SRB和/或SL-DRB的第一跳配置;所述源UE向所述中继UE发送所述源UE与中继UE之间的端到端SL-SRB和/或SL-DRB的第一跳配置的第二配置信息,其中,所述第二配置信息中至少包括以下之一:目标UE的层二标识、第一跳SL-RLC配置、第一跳SRAP配置;所述源UE接收所述中继UE接收到所述第二配置信息所发送的第一反馈信息。
在一个示例性实施例中,所述中继UE接收到所述第二配置信息之后,还包括:处于无线资源控制连接RRC CONNECTED状态的中继UE向所述基站发送建立所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二请求信息,其中,所述第二请求信息中至少包括以下之一:SL-SRB列表、源UE的层二标识、SL-DRB列表;所述中继UE接收所述基站发送的所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二跳配置,其中,所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二配置至少包括:所述源UE的层二标识和所述目标UE的层二标识;所述中继UE将所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二跳配置的第三配置信息发送至目标UE,其中,所述第三配置信息至少包括以下之一:源UE标识、第二跳SRAP配置、第二跳SL-RLC配置;所述中继UE接收所述目标UE接收到所述第三配置信息所发送的第二反馈信息。
在一个示例性实施例中,其中,所述第二反馈信息为所述目标UE反馈的接受所述第三配置信息或拒绝所述第三配置信息。
在一个示例性实施例中,在所述中继UE接收所述目标UE发送的所述接受所述第三配置信息之后,还包括:完成所述源UE与目标UE之间的端到端SL-SRB和/或SL-DRB的建立。
在一个示例性实施例中,在完成所述源UE与目标UE之间的端到端SL-SRB和/或SL-DRB的建立之后,还包括:当所述中继UE检测到所述目标UE与所述中继UE之间无线链路失败时,所述中继UE通知所述源UE无线链路失败信息,其中,所述无线链路失败信息至少包括:目标UE的层二标识;所述源UE将收到的所述无线链路失败信息上报给所述基站。
在一个示例性实施例中,在所述中继UE接收所述目标UE发送的所述拒绝所述第三配置信息之后,还包括:所述中继UE将配置失败信息通知给所述源UE,其中,所述配置失败信息至少包括:所述目标UE的层二标识;所述源UE将接收到的所述配置失败信息上报给所述基站。
在一个示例性实施例中,在完成所述源UE与目标UE之间的端到端SL-SRB和/或SL-DRB的建立之后,还包括:当所述中继UE与所述目标UE之间从直接链路切换为间接链路时,所 述中继UE将所述中继UE与所述目标UE之间的链路切换通知给源UE;所述源UE将所述链路切换上报给所述基站。
在一个示例性实施例中,其中,在所述源UE或中继UE处于无网络覆盖的情况下,通过预配置的方式建立所述源UE与所述中继UE之间的端到端SL-SRB和/或SL-DRB,或建立所述中继UE与所述目标UE之间的端到端SL-SRB和/或SL-DRB,或建立所述源UE与所述目标UE之间的端到端SL-SRB和/或SL-DRB的建立,或建立所述源UE与所述目标UE之间的端到端直通链路,其中,预配置包括PC5 QoS流到SL-RLC的映射关系;在所述源UE或中继UE处于无线资源控制非激活RRC INACTIVE状态或处于无线资源控制空闲RRC IDLE状态的情况下,通过系统信息块SIB12的配置信息建立所述源UE与所述中继UE之间的端到端SL-SRB和/或SL-DRB,或建立所述中继UE与所述目标UE之间的端到端SL-SRB和/或SL-DRB,或建立所述源UE与所述目标UE之间的端到端SL-SRB和/或SL-DRB的建立,或建立所述源UE与所述目标UE之间的端到端直通链路;其中,所述系统信息块中至少包括以下之一:用于端到端RRC ReconfigurationSidelink的定时器、端到端SL-SRB配置、端到端SL-DRB配置。
通过上述步骤,源UE通过第一请求信息来获取基站下发的第一配置信息,其中,所述第一请求信息中至少包括SL-SRB列表,并根据所述第一配置信息由选定的中继UE与目标UE建立端到端直通链路。从而解决相关技术中源UE与目标UE通过中继UE连接通信的问题。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如只读存储器/随机存取存储器(Read-Only Memory/Random Access Memory,ROM/RAM)、磁碟、光盘)中,包括若干指令用以使得一台终端设备(可以是手机,计算机,服务器,或者网络设备等)执行本发明各个实施例所述的方法。
在本实施例中还提供了一种端到端通信建立系统,该系统用于实现上述实施例及优选实施方式,已经进行过说明的不再赘述。如以下所使用的,术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现,但是硬件,或者软件和硬件的组合的实现也是可能并被构想的。
图3是根据本发明实施例的端到端通信建立系统的结构框图,如图3所示,该系统包括:处于无线资源控制连接RRC CONNECTED状态的源用户设备UE 10、目标UE 20、处于无线资源控制连接RRC CONNECTED状态的中继UE 30和基站40,其中,所述源UE 10包括:
确定模块11,设置为确定通过选定的中继UE与目标UE建立端到端直通链路;
第一发送模块12,设置为向基站发送用于建立所述源UE与目标UE之间的端到端直通链路的第一请求信息,其中,所述第一请求信息中至少包括以下之一:SL-SRB列表、目标UE标识、中继UE标识、SL-DRB列表;
第一接收模块13,设置为接收所述基站下发的第一配置信息,并根据所述第一配置信息通过选定的所述中继UE与所述目标UE建立端到端直通链路。
第二接收模块14,设置为接收所述基站发送的所述源UE与中继UE之间的端到端SL-SRB和/或SL-DRB的第一跳配置;
第二发送模块15,设置为向所述中继UE发送所述源UE与中继UE之间的端到端SL-SRB 和/或SL-DRB的第一跳配置的第二配置信息,其中,所述第二配置信息中至少包括以下之一:目标UE的层二标识、第一跳SL-RLC配置、第一跳SRAP配置;
第三接收模块16,设置为接收所述中继UE接收到所述第二配置信息所发送的第一反馈信息。
在一个示例性实施例中,其中,所述第一配置信息至少包括以下之一:端到端直通链路配置、源UE与中继UE之间的链路配置。
图4是根据本发明另一实施例的端到端通信建立系统的结构框图,如图4所示,所述基站包括:
第一发送模块21,设置为向源UE发送所述源UE与中继UE之间的端到端SL-SRB和/或SL-DRB的第一跳配置。
第二发送模块22,设置为向中继UE发送所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二跳配置。
图5是根据本发明再一实施例的端到端通信建立系统的结构框图,如图5所示,所述中继UE,包括:
第一发送模块31,设置为向所述基站发送建立所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二请求信息,其中,所述第二请求信息中至少包括以下之一:SL-SRB列表、源UE的层二标识、SL-DRB列表;
第一接收模块32,设置为接收所述基站发送的所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二跳配置,其中,所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二跳配置至少包括:所述源UE的层二标识和所述目标UE的层二标识;
第二发送模块33,设置为将所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二跳配置的第三配置信息发送至目标UE,其中,所述第三配置信息至少包括以下之一:源UE标识、第二跳SRAP配置、第二跳SL-RLC配置;
第二接收模块34,设置为接收所述目标UE接收到所述第三配置信息所发送的第二反馈信息。
第一通知模块35,设置为在所述中继UE与所述目标UE之间从直接链路切换为间接链路的情况下,将所述中继UE与所述目标UE之间的链路切换通知给源UE,以便所述源UE将所述链路切换上报给基站。
第二通知模块36,设置为在所述中继UE接收所述目标UE发送的拒绝配置信息的情况下,将配置失败信息通知给所述源UE,以便源UE将所述配置失败信息上报给基站,其中,所述配置失败信息至少包括:所述目标UE的层二标识。
需要说明的是,上述各个模块是可以通过软件或硬件来实现的,对于后者,可以通过以下方式实现,但不限于此:上述模块均位于同一处理器中;或者,上述各个模块以任意组合的形式分别位于不同的处理器中。
为了便于对发明所提供的技术方案的理解,下面将结合具体场景的实施例进行详细阐述。
图6是根据本发明实施例的源UE与中继UE建立端到端通信的方法示意图,其中,该方法包括如下步骤:
步骤S601:源终端向基站发送请求信息以与目标基站建立端到端SL信令承载链接,其 中,所述请求信息至少包括:SL-SRB列表;
步骤S602:基站将源终端和中继终端之间的一跳配置发送至源终端;
步骤S603:中继终端接收到源终端发送的配置信息并反馈给源终端;
步骤S604:所述源终端收到中继终端的反馈后,将端到端SL-SRB和/或SL-DRB的相关信令信息发送至中继终端,其中,所述相关信息至少包括:目标终端L2ID。
图7是根据本发明实施例的中继UE与目标UE建立端到端通信的方法示意图,其中,该方法包括如下步骤:
步骤S701:中继终端向基站发送请求信息,以与目标终端建立端到端SL-SRB链路,其中,所述请求信息至少包括:端到端SL-SRB和/或SL-DRB的源终端L2 ID。
步骤S702:所述基站接收到中继终端发送的请求信息后,将中继终端与中继目标终端之间的一跳配置发送至所述中继终端,其中,一跳配置至少包括:端到端SL-srb和/或SL DRB的源终端L2 ID和目标终端L2 ID。
步骤S703:目标终端接收中继终端发送的配置信息并向中继终端反馈已接收配置信息。
步骤S704:中继终端将端到端SL-SRB、SL-DRB的相关配置信息发送到目标终端。
在本实施例中,RRC IDLE状态的UE通过预配置通过预配置的方式建立所述源UE与所述中继UE之间的端到端SL-SRB和/或SL-DRB或建立所述中继UE与所述目标UE之间的端到端SL-SRB和/或SL-DRB,或建立所述源UE与所述目标UE之间的端到端SL-SRB和/或SL-DRB的建立,或建立所述源UE与所述目标UE之间的端到端直通链路,其中,预配置包括PC5 QoS流到SL-RLC的映射。
图8是根据本发明实施例的无线资源控制非激活RRC INACTIVE状态的UE获取配置信息的示意图,具体地,处于无线资源控制非激活RRC INACTIVE状态的UE,通过系统信息块SIB12的方式建立所述源UE与所述中继UE之间的端到端SL-SRB和/或SL-DRB,或建立所述中继UE与所述目标UE之间的端到端SL-SRB和/或SL-DRB,或建立所述源UE与所述目标UE之间的端到端SL-SRB和/或SL-DRB的建立,或建立所述源UE与所述目标UE之间的端到端直通链路;其中,所述系统信息块中包括用于端到端RRC ReconfigurationSidelink的定时器,定时器值至少包括3000ms、4000ms。
在本实施例中,源终端映射相同的服务质量QoS流对应的端到端SL-DRB和对应的hop的SL-RLC的对应关系。
图9是根据本发明实施例的反馈中继UE与目标UE无线链路失败的示意图,其中,在反馈中继UE与目标UE无线链路失败包括如下步骤:
步骤S901:中继终端检测目标终端和继电器终端之间的RLF。
步骤S902:中继终端通知源终端RLF,信息至少包括目标终端的L2 ID。
步骤S903:源终端向gNB上报中继终端与目标终端之间的RLF。
图10是根据本发明实施例的目标终端拒绝端到端链路配置的示意图,其中,目标终端拒绝端到端链路配置包括如下步骤:
步骤S1001:中继终端将中继终端和目标终端之间的端到端SL-SRB和/或SL-DRB的SRAP层和RLC的一跳配置发送到目标终端。
步骤S1002:目标终端拒绝配置,并向中继终端发送 RRCReconfigurationFailureSidelink消息。
步骤S1003:中继终端通知源终端配置失败,通知信息至少包含目标终端的L2 ID信息。
步骤S1004:源终端向基站上报中继终端与目标终端之间配置失败。
图11是根据本发明实施例的中继终端与目标终端之间的切换连接方式的示意图,该切换包括如下步骤:
步骤S1101:中继终端与目标终端之间的从直接连接切换到间接连接;
步骤S1102:中继终端通知源终端该切换;
步骤S1103:源终端上报中继终端切换的信息给基站。
本发明的实施例还提供了一种计算机可读存储介质,该计算机可读存储介质中存储有计算机程序,其中,该计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
在一个示例性实施例中,上述计算机可读存储介质可以包括但不限于:U盘、只读存储器(Read-Only Memory,简称为ROM)、随机存取存储器(Random Access Memory,简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储计算机程序的介质。
本发明的实施例还提供了一种电子装置,包括存储器和处理器,该存储器中存储有计算机程序,该处理器被设置为运行计算机程序以执行上述任一项方法实施例中的步骤。
在一个示例性实施例中,上述电子装置还可以包括传输设备以及输入输出设备,其中,该传输设备和上述处理器连接,该输入输出设备和上述处理器连接。
本实施例中的具体示例可以参考上述实施例及示例性实施方式中所描述的示例,本实施例在此不再赘述。
显然,本领域的技术人员应该明白,上述的本发明实施例的各模块或各步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (20)

  1. 一种端到端通信建立方法,包括:
    处于无线资源控制连接RRC CONNECTED状态的源用户设备UE确定通过选定的中继UE与目标UE建立端到端直通链路;
    所述源UE向基站发送用于建立所述源UE与目标UE之间的端到端直通链路的第一请求信息,其中,所述第一请求信息中至少包括以下之一:直通链路信令无线承载SL-SRB列表、目标UE标识、中继UE标识、直通链路数据无线承载SL-DRB列表;
    所述源UE收到基站下发的第一配置信息,并根据所述第一配置信息通过选定的所述中继UE与所述目标UE建立端到端直通链路。
  2. 根据权利要求1所述的方法,其中,所述第一配置信息至少包括以下之一:端到端直通链路配置、源UE与中继UE之间的链路配置。
  3. 根据权利要求1所述的方法,其中,源用户设备UE向基站发送用于建立所述源UE与目标UE之间的端到端直通链路的第一请求信息之后,还包括:
    所述源UE接收所述基站发送的所述源UE与中继UE之间的端到端SL-SRB和/或SL-DRB的第一跳配置;
    所述源UE向所述中继UE发送所述源UE与中继UE之间的端到端SL-SRB和/或SL-DRB的第一跳配置的第二配置信息,其中,所述第二配置信息中至少包括以下之一:目标UE的层二标识、第一跳SL-RLC配置、第一跳SRAP配置;
    所述源UE接收所述中继UE接收到所述第二配置信息所发送的第一反馈信息。
  4. 根据权利要求3所述的方法,其中,所述中继UE接收到所述第二配置信息之后,还包括:
    处于无线资源控制连接RRC CONNECTED状态的中继UE向所述基站发送建立所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二请求信息,其中,所述第二请求信息中至少包括以下之一:SL-SRB列表、源UE的层二标识、SL-DRB列表;
    所述中继UE接收所述基站发送的所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二跳配置,其中,所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二配置至少包括:所述源UE的层二标识和所述目标UE的层二标识;
    所述中继UE将所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二跳配置的第三配置信息发送至目标UE,其中,所述第三配置信息至少包括以下之一:源UE标识、第二跳SRAP配置、第二跳SL-RLC配置;
    所述中继UE接收所述目标UE接收到所述第三配置信息所发送的第二反馈信息。
  5. 根据权利要求4所述的方法,其中,所述第二反馈信息为所述目标UE反馈的接受所述第三配置信息或拒绝所述第三配置信息。
  6. 根据权利要求5所述的方法,其中,在所述中继UE接收所述目标UE发送的所述接受所述第三配置信息之后,还包括:
    完成所述源UE与目标UE之间的端到端SL-SRB和/或SL-DRB的建立。
  7. 根据权利要求6所述的方法,其中,在完成所述源UE与目标UE之间的端到端SL-SRB和/或SL-DRB的建立之后,还包括:
    当所述中继UE检测到所述目标UE与所述中继UE之间无线链路失败时,所述中继UE通知所述源UE无线链路失败信息,其中,所述无线链路失败信息至少包括:目标UE的层二标识;
    所述源UE将收到的所述无线链路失败信息上报给所述基站。
  8. 根据权利要求5所述的方法,其中,在所述中继UE接收所述目标UE发送的所述拒绝所述第三配置信息之后,还包括:
    所述中继UE将配置失败信息通知给所述源UE,其中,所述配置失败信息至少包括:所述目标UE的层二标识;
    所述源UE将接收到的所述配置失败信息上报给所述基站。
  9. 根据权利要求6所述的方法,其中,在完成所述源UE与目标UE之间的端到端SL-SRB和/或SL-DRB的建立之后,还包括:
    当所述中继UE与所述目标UE之间从直接链路切换为间接链路时,所述中继UE将所述中继UE与所述目标UE之间的链路切换通知给源UE;
    所述源UE将所述链路切换上报给所述基站。
  10. 根据权利要求1-9所述的方法,其中,
    在所述源UE或中继UE处于无覆盖的情况下,通过预配置的方式建立所述源UE与所述中继UE之间的端到端SL-SRB和/或SL-DRB,或建立所述中继UE与所述目标UE之间的端到端SL-SRB和/或SL-DRB,或建立所述源UE与所述目标UE之间的端到端SL-SRB和/或SL-DRB的建立,或建立所述源UE与所述目标UE之间的端到端直通链路,其中,预配置至少包括PC5 QoS流到SL-RLC的映射关系;或,
    在所述源UE或中继UE处于无线资源控制非激活RRC INACTIVE状态或处于无线资源控制空闲RRC IDLE状态的情况下,通过系统信息块SIB12的配置信息建立所述源UE与所述中继UE之间的端到端SL-SRB和/或SL-DRB,或建立所述中继UE与所述目标UE之间的端到端SL-SRB和/或SL-DRB,或建立所述源UE与所述目标UE之间的端到端SL-SRB和/或SL-DRB的建立,或建立所述源UE与所述目标UE之间的端到端直通链路;其中,所述系统信息块中至少包括以下之一:用于端到端的无线资源控制重配置直通链路定时器、端到端SL-SRB配置、端到端SL-DRB配置。
  11. 一种端到端通信建立系统,其中,包括处于无线资源控制连接RRC CONNECTED状态的源用户设备UE、目标UE、处于无线资源控制连接RRC CONNECTED状态的中继UE和基站, 其中,所述源UE包括:
    确定模块,设置为确定通过选定的中继UE与目标UE建立端到端直通链路;
    第一发送模块,设置为向基站发送用于建立所述源UE与目标UE之间的端到端直通链路的第一请求信息,其中,所述第一请求信息中至少包括以下之一:SL-SRB列表、目标UE标识、中继UE标识、SL-DRB列表;
    第一接收模块,设置为接收所述基站下发的第一配置信息,并根据所述第一配置信息通过选定的所述中继UE与所述目标UE建立端到端直通链路。
  12. 根据权利要求11所述的系统,其中,所述第一配置信息至少包括以下之一:端到端直通链路配置、源UE与中继UE之间的链路配置。
  13. 根据权利要求11所述的系统,其中,所述源UE还包括:
    第二接收模块,设置为接收所述基站发送的所述源UE与中继UE之间的端到端SL-SRB和/或SL-DRB的第一跳配置;
    第二发送模块,设置为向所述中继UE发送所述源UE与中继UE之间的端到端SL-SRB和/或SL-DRB的第一跳配置的第二配置信息,其中,所述第二配置信息中至少包括以下之一:目标UE的层二标识、第一跳SL-RLC配置、第一跳SRAP配置;
    第三接收模块,设置为接收所述中继UE接收到所述第二配置信息所发送的第一反馈信息。
  14. 根据权利要求11所述的系统,其中,所述中继UE包括:
    第一发送模块,设置为向所述基站发送建立所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二请求信息,其中,所述第二请求信息中至少包括以下之一:SL-SRB列表、源UE的层二标识、SL-DRB列表;
    第一接收模块,设置为接收所述基站发送的所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二跳配置,其中,所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二跳配置至少包括:所述源UE的层二标识和所述目标UE的层二标识;
    第二发送模块,设置为将所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二跳配置的第三配置信息发送至目标UE,其中,所述第三配置信息至少包括以下之一:源UE标识、第二跳SRAP配置、第二跳SL-RLC配置;
    第二接收模块,设置为接收所述目标UE接收到所述第三配置信息所发送的第二反馈信息。
  15. 根据权利要求11所述的系统,其中,所述基站包括:
    第一发送模块,设置为向源UE发送所述源UE与中继UE之间的端到端SL-SRB和/或SL-DRB的第一跳配置。
  16. 根据权利要求15所述的系统,其中,所述基站还包括:
    第二发送模块,设置为向中继UE发送所述中继UE与目标UE之间的端到端SL-SRB和/或SL-DRB的第二跳配置。
  17. 根据权利要求14所述的系统,其中,所述中继UE还包括:
    第一通知模块,设置为在所述中继UE与所述目标UE之间从直接链路切换为间接链路的情况下,将所述中继UE与所述目标UE之间的链路切换通知给源UE,以便所述源UE将所述链路切换上报给基站。
  18. 根据权利要求14所述的系统,其中,所述中继UE还包括:
    第二通知模块,设置为在所述中继UE接收所述目标UE发送的拒绝配置信息的情况下,将配置失败信息通知给所述源UE,以便源UE将所述配置失败信息上报给基站,其中,所述配置失败信息至少包括:所述目标UE的层二标识。
  19. 一种计算机可读存储介质,所述计算机可读存储介质中存储有计算机程序,其中,所述计算机程序被处理器执行时实现所述权利要求1至10任一项中所述的方法的步骤。
  20. 一种电子装置,包括存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现所述权利要求1至10任一项中所述的方法的步骤。
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