Patent ID: 7392012

Claim:
A method of receiving a signal from a transmitter through a plurality of transmit antennas in a receiver with a plurality of receive antennas in a multiple-input multiple-output (MIMO) communication system, comprising the steps of: (1) equalizing a first received signal received at each of the receive antennas in a predetermined first method and classifying the equalized signals into respective transmit antenna signals; (2) despreading each of the equalized transmit antenna signals with a plurality of spreading codes used in the transmitter; (3) detecting the strongest transmit antenna signal among the despread transmit antenna signals, and verifying errors in the strongest transmit antenna signal by decoding the strongest transmit antenna signal in a predetermined second method; (4) reproducing the verified strongest transmit antenna signal as an interference signal; (5) generating a second received signal by subtracting the interference signal from the first received signal; (6) equalizing the second received signal in the predetermined first method and classifying the equalized signals into respective transmit antenna signals except the strongest transmit antenna signal; and (7) repeating steps (2) through (6) until all of the received signals have been equalized.