Patent ID: 8942306
Filing Date: 2015-01-27
Classification: H04B

Abstract:
1. A method for selecting a codebook, the method comprising: receiving from a beamformer in a multiple-input multiple-output (MIMO) system, with a beamformee in the MIMO system using explicit transmit beamforming, channel state information and a sounding spatial mapping matrix set to a codebook, the codebook used to assign a steering matrix for the explicit transmit beamforming; constructing, with at least one controller, an estimated channel matrix based on the channel state information and the sounding spatial mapping matrix set to the codebook received from the beamformer; and sending, with the at least one controller, the estimated channel matrix or information based on the estimated channel matrix to the beamformer in order for the beamformer to assign a steering matrix based on the estimated channel matrix.