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1. WO2020060375 - METHOD FOR TRANSMITTING AND RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

Publication Number WO/2020/060375
Publication Date 26.03.2020
International Application No. PCT/KR2019/012366
International Filing Date 23.09.2019
IPC
H04L 5/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
H04L 5/02 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
02Channels characterised by the type of signal
H04L 1/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
H04W 72/04 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. selection or allocation of wireless resources or wireless traffic scheduling
04Wireless resource allocation
H04L 1/18 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
12by using return channel
16in which the return channel carries supervisory signals, e.g. repetition request signals
18Automatic repetition systems, e.g. van Duuren system
H04B 7/0456 2017.01
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
0413MIMO systems
0456Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting
Applicants
  • 엘지전자 주식회사 LG ELECTRONICS INC. [KR/KR]; 서울시 영등포구 여의대로 128 128, Yeoui-daero, Yeongdeungpo-Gu, Seoul 07336, KR
Inventors
  • 김규석 KIM, Kyuseok; KR
  • 김형태 KIM, Hyungtae; KR
Agents
  • 특허법인 로얄 ROYAL PATENT & LAW OFFICE; 서울시 서초구 반포대로 104 서일빌딩 4층 FL. 4 SEOIL Bldg., 104, Banpo-daero, Seocho-gu, Seoul 06648, KR
Priority Data
10-2018-011448121.09.2018KR
10-2018-011448221.09.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD FOR TRANSMITTING AND RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR
(FR) PROCÉDÉ D'ÉMISSION ET DE RÉCEPTION DE DONNÉES DANS UN SYSTÈME DE COMMUNICATION SANS FIL ET APPAREIL ASSOCIÉ
(KO) 무선 통신 시스템에서 데이터를 송수신하기 위한 방법 및 이를 위한 장치
Abstract
(EN)
The present specification relates to a method for transmitting and receiving data by a base station in a wireless communication system. More specifically, the base station transmits downlink control information (DCI) to a terminal, wherein the DCI may include first mapping information associated with mapping relationships between a plurality of layers and a plurality of codewords, and second mapping information associated with mapping relationships between a plurality of antenna ports and the plurality of layers. The base station transmits a first codeword and a second codeword to the terminal on the basis of the DCI, wherein the first codeword and the second codeword may be mapped with the plurality of layers according to the first mapping information, and the plurality of layers may be mapped with the plurality of antenna ports according to the second mapping information.
(FR)
La présente invention concerne un procédé d'émission et de réception de données par une station de base dans un système de communication sans fil. Plus spécifiquement, la station de base transmet des informations de commande de liaison descendante (DCI) à un terminal, les DCI pouvant comprendre des premières informations de mappage, associées à des relations de mappage entre une pluralité de couches et une pluralité de mots de code, et des secondes informations de mappage, associées à des relations de mappage entre une pluralité de ports d'antenne et la pluralité de couches. La station de base transmet un premier mot de code et un second mot de code au terminal sur la base des DCI, le premier mot de code et le second mot de code pouvant être mappés avec la pluralité de couches selon les premières informations de mappage et la pluralité de couches peut être mappée avec la pluralité de ports d'antenne selon les secondes informations de mappage.
(KO)
본 명세서는 무선 통신 시스템에서 기지국이 데이터를 송수신하는 방법에 관한 것이다. 보다 구체적으로, 기지국은 단말로 하향링크 제어 정보(downlink control information: DCI)를 전송하되, 상기 DCI는 복수 개의 코드워드들과 복수 개의 레이어들 간의 매핑 관계와 관련된 제 1 매핑 정보 및 상기 복수 개의 레이어들과 복수 개의 안테나 포트들간의 매핑 관계와 관련된 제 2 매핑 정보를 포함할 수 있다. 기지국은 DCI에 기초하여 제 1 코드워드 및 제 2 코드워드를 단말에게 전송하되, 상기 제 1 코드워드 및 상기 제 2 코드워드는 상기 제 1 매핑 정보에 따라 상기 복수 개의 레이어들과 매핑되고, 상기 복수 개의 레이어들은 상기 제 2 매핑 정보에 따라 상기 복수 개의 안테나 포드들과 매핑될 수 있다.
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