METHOD FOR PERFORMING PRE-CODING USING CODEBOOK IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

摘要

The present specification discloses a method for performing pre-coding using a codebook in a wireless communication system, and the method performed by a terminal comprises the steps of: receiving a reference signal for channel estimation from a base station; estimating a channel using the received reference signal; determining a pre-coding matrix related to the estimated channel in a codebook; and feeding back a pre-coding matrix index (PMI) corresponding to the determined pre-coding matrix to the base station, wherein the codebook is generated by considering at least one of a region to which the terminal belongs or the position of the terminal.