Patent ID: 7826571
Filing Date: 2010-11-02
Classification: H04B,H04L

Abstract:
1. A method for detecting a signal in a receiver of a Multiple-Input Multiple-Output (MIMO) communication system including a transmitter for transmitting signals via K transmission antennas and a receiver for receiving the signals via L reception antennas, wherein L is greater than or equal to K and the system has a K×L-dimensional channel matrix, the method comprising the steps of: converting the channel matrix into a plurality of matrixes having an upper triangle structure; dividing each of the matrixes into at least two sub-matrixes having a dimension lower than that of the channel matrix; detecting transmission symbols from corresponding transmission antennas by decoding a signal received according to a lowest sub-matrix having components with only the channel characteristics for two transmission antennas among the at least two sub-matrixes; detecting transmission symbols from corresponding transmission antennas through decoding on a signal received according to an upper sub-matrix, using the transmission symbols; and outputting all of the detected transmission symbols, if transmission symbols by a highest sub-matrix among the at least two sub-matrixes are detected.