Patent ID: RE44959

Claim:
A method of maximizing a communication parameter of a channel between a transmit unit having a number M of transmit antennas and a receive unit having a number N of receive antennas, said method comprising the following steps: a) processing said data to produce parallel spatial-multiplexed streams SM i , where i=1 . . . k; b) mapping said spatial-multiplexed streams SM i to transmit signals TS p , where p=1 . . . M, for transmission from said M transmit antennas to said receiver via said channel, wherein the mapping comprises processing each of said spatial-multiplexed streams SM i by a coding unit to produce coded streams CS h , where h=1 . . . k′; c) receiving receive signals RS j , where j=1 . . . N by said N receive antennas; d) assessing a quality parameter of said receive signals RS j ; e) using said quality parameter to adjust k to maximize said communication parameter of said channel; and f) using said quality parameter in said transmit unit to adjust k′.