Patent ID: 8761287

Claim:
A method for controlling transmission of an information signal from a first communication device to at least one second communication device, the method comprising: selecting a subset of receive antennas of the at least one second communication device from a plurality of different subsets of the receive antennas of the at least one second communication device; developing a steering matrix using the selected subset of the receive antennas; and controlling, using the steering matrix, the transmission of the information signal from the plurality of transmit antennas of the first communication device to the at least one second communication device, wherein selecting the subset of the receive antennas includes one of: (i) randomly selecting the subset of the receive antennas from the plurality of different subsets of the receive antennas, or (ii) selecting the subset of the receive antennas, from the plurality of different subsets of the receive antennas, that provides best transmission quality if: (iia) the selected subset of the receive antennas is subsequently used to develop the steering matrix, and (iib) the steering matrix is subsequently used to control the transmission of the information signal from a plurality of transmit antennas at the first communication device to the at least one second communication device.