METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING DOWNLINK CONTROL INFORMATION IN NON-TERRESTRIAL NETWORK

• Main Authors: RYU, Chang Woo, KIM, Song Hak
• Format: Patent
• Language: English; French; Korean
• Published: 02.06.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

Provided is a wireless transmission and reception method performed by a terminal. The wireless transmission and reception method comprises the steps of: receiving, from a base station, an RRC message including information indicating a Hybrid Automatic Repeat request (HARQ) feedback enabled or disabled mode with respect to downlink transmission; and receiving, from the base station, Downlink Control Information (DCI) including a PDSCH-to-HARQ feedback timing indicator, wherein the PDSCH-to-HARQ feedback timing indicator is provided together with a first indication or a second indication different from the first indication according to the HARQ feedback mode indicated by information included in the RRC message. L'invention concerne un procédé de transmission et de réception sans fil exécuté par un terminal. Le procédé de transmission et de réception sans fil comprend les étapes consistant à : recevoir d'une station de base un message RRC contenant des informations indiquant un mode activé ou désactivé de renvoi de demande de répétition automatique hybride (HARQ) par rapport à une transmission en liaison descendante ; et recevoir de la station de base des informations de commande de liaison descendante (DCI) contenant un indicateur de synchronisation de renvoi de PDSCH-vers-HARQ. L'indicateur de synchronisation de renvoi de PDSCH-vers-HARQ est fourni en même temps qu'une première indication ou une seconde indication différente de la première d'après le mode de renvoi de HARQ indiqué par les informations intégrées dans le message RRC. 단말에 의해 수행되는 무선 송수신 방법이 제공된다. 상기 무선 송수신 방법은 기지국으로부터 하향링크 전송에 대한 HARQ(Hybrid Automatic Repeat request) 피드백의 사용가능 또는 사용 불가능 모드를 지시하는 정보를 포함하는 RRC 메시지를 수신하는 단계 및 상기 기지국으로부터 PDSCH-to-HARQ 피드백 타이밍 지시자(feedback timing indicator)를 포함하는 DCI(Downlink Control Information)를 수신하는 단계를 포함하되, PDSCH-to-HARQ 피드백 타이밍 지시자는 상기 RRC 메시지 내에 포함된 정보가 지시하는 HARQ 피드백 모드에 따라 제1 지시 사항 또는 상기 제1 지시 사항과는 상이한 제2 지시 사항을 포함하여 제공된다.