WO2021219068A1 - Procédé de reselection pour un équipement utilisateur relais et équipement utilisateur - Google Patents

Procédé de reselection pour un équipement utilisateur relais et équipement utilisateur Download PDF

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Publication number
WO2021219068A1
WO2021219068A1 PCT/CN2021/090891 CN2021090891W WO2021219068A1 WO 2021219068 A1 WO2021219068 A1 WO 2021219068A1 CN 2021090891 W CN2021090891 W CN 2021090891W WO 2021219068 A1 WO2021219068 A1 WO 2021219068A1
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WO
WIPO (PCT)
Prior art keywords
relay
secondary link
information
remote
rrc reconfiguration
Prior art date
Application number
PCT/CN2021/090891
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English (en)
Chinese (zh)
Inventor
郑倩
Original Assignee
维沃移动通信有限公司
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Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2021219068A1 publication Critical patent/WO2021219068A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/305—Handover due to radio link failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/03—Reselecting a link using a direct mode connection
    • H04W36/033—Reselecting a link using a direct mode connection in pre-organised networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/249—Reselection being triggered by specific parameters according to timing information

Definitions

  • the purpose of the embodiments of this application is to provide a relay terminal equipment reselection method and terminal equipment to solve the problem of how to implement a relay UE reselection mechanism when considering some new features of NR sidelink.
  • an embodiment of the present application provides a method for reselecting a relay terminal device, which is applied to a remote terminal device, and the method includes:
  • an embodiment of the present application provides a method for reselecting a relay terminal device, which is applied to a relay terminal device, and the method includes:
  • an embodiment of the present application provides a readable storage medium with a program or instruction stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method described in the fifth aspect are implemented .
  • the remote UE may trigger the corresponding relay reselection process when it is determined that the first relay UE currently providing the relay service for it satisfies the relay reselection conditions.
  • the remote UE may perform relay reselection in various situations where the secondary link RRC connection fails. In this way, it can be ensured that the remote UE can always perform service transmission on a reliable relay UE.
  • the 5G NR system can be used in working frequency bands above 6GHz that LTE does not support, and supports larger working bandwidth.
  • the current version of the NR system only supports the interface between network devices (such as base stations) and terminal devices, and does not yet support the Sidelink interface (also known as the PC5 interface) for direct communication between terminal devices.
  • the foregoing determining that the first relay UE satisfies the relay reselection condition includes at least one of the following: determining to send a secondary link RRC reconfiguration failure message; determining that the first relay UE receives the secondary link RRC reconfiguration Failure message; receiving the secondary link RRC reconfiguration failure message sent by the first relay UE; determining that the secondary link RRC reconfiguration process fails; determining that the secondary link SRB integrity protection verification fails.
  • Link RRC reconfiguration message (3) In the case where it is determined that the secondary link RRC reconfiguration failure message sent by the first relay UE that currently provides the relay service for it has been received, it can be determined that the secondary link RRC connection failed, In the scenario shown in Figure 5, the remote UE initiates the secondary link RRC reconfiguration message in this scenario; (4) In the case where it is determined that the secondary link RRC reconfiguration process fails, it can be determined that the secondary link RRC connection fails; (5) In the case where it is determined that the secondary link SRB integrity protection verification fails, it can be determined that the secondary link RRC connection fails, as shown in the scenario in FIG. 9.
  • the following content may be further included:
  • the foregoing step of sending the first information to the upper layer of the remote UE may be triggered by the AS layer of the remote UE on the one hand.
  • the determining secondary The failure of the link RRC reconfiguration process can be specifically manifested as: the remote UE does not receive any Sidelink RRC message (or the T400 timer expires) within a certain period of time, triggering a relay reselection, as shown in the scenario shown in FIG. 7. That is to say, the above steps of determining that the secondary link RRC reconfiguration process fails can be specifically executed as follows:
  • the start time of the second preset time period is the relay The time when the UE sends a secondary link RRC reconfiguration message to the remote UE.
  • the user interface 503 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball (trackball), a touch panel, or a touch screen, etc.).
  • a pointing device for example, a mouse, a trackball (trackball), a touch panel, or a touch screen, etc.
  • the terminal device 500 further includes: a program or instruction that is stored in the memory 502 and can be run on the processor 501.
  • the relay reselection procedure is triggered, and the first relay UE is the UE currently providing relay service for the remote UE; wherein, the Determining that the first relay UE satisfies the relay reselection condition includes at least one of the following: determining to send a secondary link RRC reconfiguration failure message; determining that the first relay UE receives the secondary link RRC reconfiguration failure message; Receive the secondary link RRC reconfiguration failure message sent by the first relay UE; determine that the secondary link RRC reconfiguration process fails; determine that the secondary link SRB integrity protection verification fails.
  • the embodiments described in the embodiments of the present application may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more application specific integrated circuits (ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing equipment (DSP Device, DSPD), programmable Logic devices (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in this application Electronic unit or its combination.
  • ASIC application specific integrated circuits
  • DSP Digital Signal Processing
  • DSP Device digital signal processing equipment
  • PLD programmable Logic Device
  • PLD Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array
  • the embodiment of the present application further provides a terminal device, including a processor, a memory, and a program or instruction that is stored in the memory and can run on the processor.
  • a terminal device including a processor, a memory, and a program or instruction that is stored in the memory and can run on the processor.
  • the program or instruction is executed by the processor, any of the foregoing is implemented.
  • Each process of the embodiment of the reselection method for a relay terminal device can achieve the same technical effect. To avoid repetition, details are not repeated here.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Sont divulgués ici un procédé de reselection pour un équipement utilisateur relais, et un équipement utilisateur, qui se rapportent au domaine technique des communications. Le procédé de resélection pour un équipement utilisateur relais consiste, lorsqu'il est déterminé qu'un premier UE relais satisfait une condition de resélection de relais, à déclencher un flux de resélection de relais, le premier UE relais étant un UE qui fournit actuellement un service de relais pour un UE distant ; et la détermination qu'un premier UE relais satisfait une condition de resélection de relais comprend au moins l'un des éléments suivants : la détermination pour savoir s'il faut envoyer un message de défaillance de reconfiguration RRC de liaison latérale ; la détermination pour savoir si le premier UE relais a bien reçu le message de défaillance de reconfiguration RRC de liaison latérale ; la réception, par le premier UE relais, du message de défaillance de reconfiguration RRC de liaison latérale envoyé ; la détermination qu'un flux de reconfiguration RRC de liaison latérale a échoué ; et la détermination que la vérification de protection d'intégrité SRB de liaison latérale a échoué.
PCT/CN2021/090891 2020-04-30 2021-04-29 Procédé de reselection pour un équipement utilisateur relais et équipement utilisateur WO2021219068A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010368309.1A CN113596934B (zh) 2020-04-30 2020-04-30 中继终端设备的重选方法和终端设备
CN202010368309.1 2020-04-30

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WO2021219068A1 true WO2021219068A1 (fr) 2021-11-04

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WO (1) WO2021219068A1 (fr)

Cited By (2)

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WO2023093889A1 (fr) * 2021-11-29 2023-06-01 华为技术有限公司 Procédé et appareil de communication par liaison latérale
WO2023103950A1 (fr) * 2021-12-09 2023-06-15 夏普株式会社 Procédé exécuté par un équipement utilisateur, et équipement utilisateur

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CN113873600B (zh) * 2021-11-22 2024-05-03 Oppo广东移动通信有限公司 侧行链路的切换方法、装置、终端、存储介质及程序产品
CN116367262A (zh) * 2021-12-27 2023-06-30 夏普株式会社 由用户设备执行的方法以及用户设备
CN116419344A (zh) * 2021-12-31 2023-07-11 展讯半导体(南京)有限公司 中继通信方法及装置、计算机可读存储介质
WO2023130368A1 (fr) * 2022-01-07 2023-07-13 富士通株式会社 Procédé et appareil d'émission-réception d'informations et système de communication
WO2023141905A1 (fr) * 2022-01-27 2023-08-03 Lenovo (Beijing) Limited Procédés et appareils pour temporisateurs et comportement dans un cas de relais u2n
CN116939552A (zh) * 2022-03-29 2023-10-24 维沃移动通信有限公司 无线链路失败的确定方法、装置、终端及网络侧设备
CN115004852A (zh) * 2022-04-25 2022-09-02 北京小米移动软件有限公司 发送通知消息的方法及装置
CN117015072A (zh) * 2022-04-27 2023-11-07 大唐移动通信设备有限公司 一种直接sl通信方法及装置
CN117560313A (zh) * 2022-08-05 2024-02-13 维沃移动通信有限公司 数据传输方法及装置、终端
WO2024092823A1 (fr) * 2022-11-04 2024-05-10 北京小米移动软件有限公司 Procédé et appareil de sélection et de resélection d'ue relais pour scénario d'ue à ue

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WO2023103950A1 (fr) * 2021-12-09 2023-06-15 夏普株式会社 Procédé exécuté par un équipement utilisateur, et équipement utilisateur

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CN113596934B (zh) 2022-10-18

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