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1. (WO2017196098) METHOD FOR TRANSMITTING AND RECEIVING CHANNEL STATE INFORMATION IN MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR

Pub. No.:    WO/2017/196098    International Application No.:    PCT/KR2017/004879
Publication Date: Fri Nov 17 00:59:59 CET 2017 International Filing Date: Fri May 12 01:59:59 CEST 2017
IPC: H04B 7/06
H04B 7/0456
H04B 7/0452
Applicants: LG ELECTRONICS INC.
엘지전자(주)
Inventors: PARK, Haewook
박해욱
KIM, Hyungtae
김형태
KIM, Kijun
김기준
PARK, Jonghyun
박종현
Title: METHOD FOR TRANSMITTING AND RECEIVING CHANNEL STATE INFORMATION IN MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR
Abstract:
Disclosed are a method for transmitting and receiving channel state information in a multi-antenna wireless communication system, and an apparatus therefor. Particularly, a method by which user equipment (UE) reports channel state information in a two-dimensional multi-antenna wireless communication system comprises the steps of: receiving, from a base station, a channel state information reference signal (CSI-RS) through a multi-antenna port; and reporting the channel state information to the base station, wherein a plurality of codewords, which are used for generating a pre-coding matrix selected by the UE within a codebook for reporting the channel state information, are specified by the channel state information and, after power coefficients are applied to each of the plurality of codewords, the pre-coding matrix can be generated on the basis of a linear combination of the plurality of codewords to which the power coefficients are applied.