Patent ID: 7899138
Filing Date: 2011-03-01
Classification: H04L

Abstract:
1. A method of detecting a space-time code for a plurality of transmitting antennas, the method comprising: receiving, by at least one receiving antenna, signals that are transmitted from the plurality of transmitting antennas, and determining channel statuses of the received signals for the transmitting antennas to determine a detection order of symbol groups, the received signals being divided into a first symbol group and a second symbol group each of which includes a pair of a first symbol and a second symbol, each symbol including imaginary and real parts each having one or more bits; calculating a ML (maximum likelihood) metric for the first symbol group if detection on the first symbol group is determined according to the channel statuses; performing sphere decoding on the calculated ML metric and sequentially detecting an imaginary part of one bit and a real part of one bit for the first symbol and the second symbol of the first symbol group; and detecting, by a detector, the second symbol group as a single symbol on the basis of the detected first symbol group.