METHOD FOR TRANSMITTING OR RECEIVING SIGNAL TO OR FROM USER EQUIPMENT BY BASE STATION SUPPORTING FULL DUPLEX IN WIRELESS COMMUNICATION SYSTEM

• Main Author: CHAE, Hyukjin
• Format: Patent
• Language: English; French; Korean
• Published: 18.07.2019
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

An embodiment of the present invention provides a method for transmitting or receiving a full duplex signal to or from a user equipment (UE) by a base station supporting full duplex in a wireless communication system, the method comprising the steps of: transmitting, by the base station, a first RE set including two REs to the UE while applying different pre-coders to the two REs of the first RE set; and receiving a second RE set including two REs from a plurality of UEs including the UE while applying different post-coders to the two REs of the second RE set during the transmission of the first RE set, wherein a code division multiplexing (CDM) code is applied to each of the first RE set in which the base station performs downlink transmission to the UE and the second RE set in which the UE performs uplink transmission to the base station. Selon un mode de réalisation, la présente invention concerne un procédé d'émission ou de réception d'un signal duplex intégral vers ou depuis un équipement utilisateur (UE) par une station de base prenant en charge un duplex intégral dans un système de communication sans fil, le procédé comprenant les étapes consistant à : transmettre, par la station de base, un premier ensemble de RE comprenant deux RE à l'UE tout en appliquant différents pré-codeurs aux deux RE du premier ensemble de RE ; et recevoir un second ensemble de RE comprenant deux RE provenant d'une pluralité d'UE comprenant l'UE tout en appliquant différents post-codeurs aux deux RE du second ensemble de RE pendant la transmission du premier ensemble de RE, un code de multiplexage par répartition de code (CDM) est appliqué à chacun du premier ensemble de RE dans lequel la station de base effectue une transmission de liaison descendante vers l'UE et le second ensemble de RE dans lequel l'UE effectue une transmission de liaison montante vers la station de base. 본 발명의 일 실시예는, 무선통신시스템에서 Full duplex를 지원하는 기지국이 단말과 신호를 송수신하는 방법에 있어서, 상기 기지국이 2개의 RE를 포함하는 제1 RE 세트를, 상기 제1 RE 세트의 2개의 RE 각각에 서로 다른 프리코더를 적용하여 단말로 전송하는 단계; 상기 제1 RE 세트가 전송되는 시간 동안, 2개의 RE를 포함하는 제2 RE 세트를, 상기 제2 RE 세트의 2개의 RE 각각에 서로 다른 포스트-코더를 적용하여 상기 단말을 포함하는 복수의 단말로부터 수신하는 단계를 포함하며, 상기 기지국이 단말에게 하향링크 전송하는 제1 RE 세트와 상기 단말이 기지국으로 상향링크 전송하는 상기 제2 RE 세트에는 Code Division Multiplexing(CDM) 코드가 각각 적용된 것인, Full duplex 신호 송수신 방법이다.