A METHOD FOR COMMUNICATION USING CODEBOOK IN MIMO SYSTEMS AND APPARATUS THEREOF

摘要

PURPOSE: A communication method using a code book in an MIMO system and an apparatus thereof are provided to have a matrix structure of a power ratio by the same layer, thereby preventing a PAPR(Peak-to-Average Power Ratio) increase. CONSTITUTION: An apparatus maps at least two code words on a plurality of layers(103). The apparatus maps each layer on antennas based on a precoding matrix selected from a code book(105). The apparatus multiplies values corresponding to coefficients of the selected precoding matrix when the layers are mapped on the antennas(106).