METHOD AND DEVICE FOR RESELECTING RELAY TERMINAL IN WIRELESS COMMUNICATION SYSTEM

The present disclosure relates to a method for operating a terminal for performing a relay reselection between terminals in a wireless communication system, the method comprising: a step in which a first terminal establishes a PC5 connection with a second terminal through a first relay terminal; a s...

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Bibliographic Details
Main Author KIM, Lae Young
Format Patent
LanguageEnglish
French
Korean
Published 30.06.2022
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Summary:The present disclosure relates to a method for operating a terminal for performing a relay reselection between terminals in a wireless communication system, the method comprising: a step in which a first terminal establishes a PC5 connection with a second terminal through a first relay terminal; a step in which the first terminal decides to do relay reselection; a step of transmitting a direct communication request message in a broadcast manner on the basis of the relay reselection, wherein the direct communication request message includes relay reselection related-information; a step in which the first terminal receives a direct communication accept message transmitted on the basis of the second terminal; and a step of performing relay reselection on the basis of the direct communication accept message and setting a new path for the second terminal. La présente invention concerne un procédé d'utilisation d'un terminal pour effectuer une resélection de relais entre des terminaux dans un système de communication sans fil, ce procédé comprenant : une étape dans laquelle un premier terminal établit une connexion PC5 avec un deuxième terminal par l'intermédiaire d'un premier terminal de relais ; une étape dans laquelle le premier terminal décide de réaliser une resélection de relais ; une étape de transmission d'un message de demande de communication directe, par diffusion, selon la resélection de relais, le message de demande de communication directe comprenant des informations associées à la resélection de relais ; une étape dans laquelle le premier terminal reçoit un message d'acceptation de communication directe transmis en fonction du deuxième terminal ; et une étape consistant à effectuer une resélection de relais en fonction du message d'acceptation de communication directe et à définir un nouveau chemin pour le deuxième terminal. 본 개시는 무선 통신 시스템에서 단말 간 릴레이 재선택을 수행하는 단말 동작 방법에 있어서, 제 1 단말이 제 1 릴레이 단말을 통해 제 2 단말과 PC5 연결을 수립하는 단계, 제 1 단말이 릴레이 재선택을 결정하는 단계, 릴레이 재선택에 기초하여 직접 통신 요청 메시지를 브로드캐스트 방식으로 전송하는 단계로써, 직접 통신 요청 메시지는 릴레이 재선택 관련 정보를 포함하고, 제 1 단말이 제 2 단말에 기초하여 전송되는 직접 통신 허여 메시지를 수신하는 단계 및 직접 통신 허여 메시지에 기초하여 릴레이 재선택을 수행하고, 제 2 단말에 대한 새로운 경로를 설정하는 단계를 포함할 수 있다.
Bibliography:Application Number: WO2021KR19659