Patent ID: 8160174

Claim:
A method of detecting signals at a receiver of a communication system with multiple input multiple output antennas, the method comprising: calculating, by the receiver, a square of a distance between a received signal vector and a channel status-considered transmission symbol vector; classifying, by the receiver, the square of the distance into a first component and a second component; calculating, by the receiver, a plurality of first soft symbol estimates by minimizing the first component; calculating, by the receiver, a solution set of the first component on the basis of the plurality of first soft symbol estimates; calculating, by the receiver, a plurality of second soft symbol estimates by minimizing the second component; calculating, by the receiver, a solution set of the second component on the basis of the plurality of second soft symbol estimates; and calculating, by the receiver, a final solution set by doing a sum of the solution set of the first component and the solution set of the second component.