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|1. (WO2017196098) METHOD FOR TRANSMITTING AND RECEIVING CHANNEL STATE INFORMATION IN MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR|
|Applicants:||LG ELECTRONICS INC.
|Title:||METHOD FOR TRANSMITTING AND RECEIVING CHANNEL STATE INFORMATION IN MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR|
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.