Patent ID: 7796703
Filing Date: 2010-09-14
Classification: H04B,H04L

Abstract:
1. A method of transmitting feedback information from a receiving end, wherein the receiving end processes signals received via a corresponding antenna by applying a weight to each of the signals in a wireless communication system, the method comprising: estimating a channel matrix ‘H’ corresponding to at least one of the signals received from a transmitting end; determining two or more sub-matrices by extracting combinations of columns from the channel matrix ‘H’, such that each of the two or more sub-matrices comprise a smaller number of the columns than the channel matrix ‘H’; calculating at least one singular value set, wherein each of the at least one singular value set is calculated for a corresponding one of the two or more sub-matrices by applying a Singular Value Decomposition (SVD) scheme to each of the two or more sub-matrices; selecting a permutation matrix ‘P’ according to the at least one singular value set based on equations defined as: where the at least one singular value set comprises: transmitting the selected permutation matrix ‘P’ as the feedback information to the transmitting end, wherein the selected permutation matrix ‘P’ comprises a largest singular value set.