Patent ID: 8059771

Claim:
A method for receiving data streams using four antennas, comprising the steps of: estimating a channel status for four antennas; calculating a weight value for each of the four antennas using the estimated channel status; calculating a Signal-to-Interference-plus-Noise Ratio (SINR) for each of the four antennas using the estimated channel status; calculating a data throughput for each of the four antennas using the SINR; selecting two antenna combinations from the four antennas, wherein the two antenna combinations provide the maximum data throughput; transmitting feedback information to a transmitting end where the four antennas are located, the feedback information related to the selected combination of antennas and the calculated weight value for each of the four antennas; and receiving a data stream S 1 and S 2 from each of the two antenna combinations, respectively, wherein the two data streams S 1 and S 2 are weighted using the weight values for each of the four antennas as shown by the following matrix, ( w 1 0 w 2 0 0 w 3 0 w 4 ) â¢ ( s 1 s 2 ) , wherein w 1 , w 2 , w 3 , w 4 represent each of the four weight values associated with the four antennas, and wherein the first antenna combination of the two selected antenna combinations comprises the first and the second antennas and wherein the second antenna combination of the two selected antenna combinations comprises the third and the fourth antennas.