UNIFIED FEEDBACK FRAME OF SUPPORTIGN A PLURALITY OF FEEDBACK MODES AND MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATION SYSTEM OF USING THE UNIFIED FEEDBACK FRAME

摘要

The receiver includes a basic code word indicator indicating one of a plurality of basic code words included in the basic codebook, a differential code word indicator indicating one of a plurality of differential code words included in the differential codebook, And feeds back a correlated codeword indicator indicating one of the plurality of correlated codewords. The transmitter generates the precoding matrix using the indicators.