Patent ID: 8644764
Filing Date: 2014-02-04
Classification: H04B,H04L

Abstract:
1. A method for operating a first communication station to facilitate communication between the first communication station and a remote communication station, wherein the first communication station includes a plurality of antennas, the method comprising: acquiring information about the channel condition between the first communication station and the remote communication station; selecting a codebook weighting matrix for the remote communication station from a codebook based on the channel condition information, wherein the codebook includes at least six codebook weighting matrices, wherein each of the codebook weighting matrices includes one or more layer-related columns, wherein each of the layer-related columns includes a plurality of complex weight values having absolute value less than or equal to one; precoding one or more layer signals based on the selected codebook weighting matrix to obtain transmit signals for the respective antennas; and transmitting the transmit signals respectively through the antennas.