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1. WO2020111597 - METHOD BY WHICH BASE STATION TRANSMITS SIGNAL ON BASIS OF ANTENNA ARRAY IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR

Publication Number WO/2020/111597
Publication Date 04.06.2020
International Application No. PCT/KR2019/015511
International Filing Date 14.11.2019
IPC
H04B 7/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
CPC
H04B 7/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
Applicants
  • 엘지전자 주식회사 LG ELECTRONICS INC. [KR]/[KR]
  • 서강대학교산학협력단 SOGANG UNIVERSITY RESEARCH FOUNDATION [KR]/[KR]
Inventors
  • 박종현 PARK, Jonghyun
  • 류원재 RYOO, Wonjae
  • 성원진 SUNG, Wonjin
  • 박해욱 PARK, Haewook
Agents
  • 특허법인 로얄 ROYAL PATENT & LAW OFFICE
Priority Data
10-2018-014715326.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD BY WHICH BASE STATION TRANSMITS SIGNAL ON BASIS OF ANTENNA ARRAY IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR
(FR) PROCÉDÉ D'ÉMISSION D'UN SIGNAL PAR UNE STATION DE BASE SUR LA BASE D'UN RÉSEAU D'ANTENNES DANS UN SYSTÈME DE COMMUNICATION SANS FIL, ET APPAREIL ASSOCIÉ
(KO) 무선 통신 시스템에서 안테나 어레이 기반으로 기지국이 신호를 전송하기 위한 방법 및 그 장치
Abstract
(EN)
A method by which a base station transmits a signal on the basis of an antenna array in a wireless communication system, according to an embodiment of the present invention, comprises the steps of: determining a multi-rank beam in consideration of (i) positions of a plurality of terminals and (ii) positions of null points of a beam generated through the antenna array; and transmitting signals to the plurality of terminals by using the multi-rank beam. The antenna array may be based on a three-dimensional shape having omnidirectional symmetry, and the positions of the null points and the positions of the plurality of terminals may be configured on the basis of a polar coordinate system using the center of the antenna array as an origin point.
(FR)
Selon un mode de réalisation, l'invention concerne un procédé par lequel une station de base émet un signal sur la base d'un réseau d'antennes dans un système de communication sans fil, qui comprend les étapes consistant à : déterminer un faisceau de rang multiple en tenant compte (i) de positions d'une pluralité de terminaux et (ii) de positions de zéros d'un faisceau généré par le réseau d'antennes ; et émettre des signaux à destination de la pluralité de terminaux en utilisant le faisceau de rang multiple. Le réseau d'antennes peut être basé sur une forme tridimensionnelle ayant une symétrie omnidirectionnelle, et les positions des zéros et les positions de la pluralité de terminaux peuvent être configurées sur la base d'un système de coordonnées polaires utilisant le centre du réseau d'antennes comme origine.
(KO)
본 발명의 일 실시예에 따른 무선 통신 시스템에서 안테나 어레이 기반으로 기지국이 신호를 전송하는 방법은 (i) 복수의 단말들의 위치와 (ii) 상기 안테나 어레이를 통해 생성된 빔의 영점들(null points)의 위치를 고려하여 다중 랭크 빔을 결정하는 단계 및 상기 다중 랭크 빔을 이용하여 상기 복수의 단말들로 신호를 전송하는 단계를 포함한다. 상기 안테나 어레이는 전방향 대칭성(omnidirectional symmetry)을 갖는 3차원 형상(three dimensional shape)기반하며, 상기 영점들의 위치와 상기 복수의 단말들의 위치는 상기 안테나 어레이의 중심을 원점으로 하는 극좌표계(polar coordinate system)에 기반하여 설정될 수 있다.
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