Patent ID: 8102932
Filing Date: 2012-01-24
Classification: H04L

Abstract:
1. A method for de-mapping symbols in a Multi-Input Multi-Output (MIMO) communication system, applicable to a MIMO communication system having a plurality of transmitting antennas and a plurality of receiving antennas, comprising: receiving a plurality of received data symbols through the receiving antennas, wherein the received data symbols are obtained by converting a plurality of transmitted data symbols transmitted by the transmitting antennas via a channel effect; converting the received data symbols by using the channel effect, so as to calculate an estimated value corresponding to one of the transmitted data symbols, and selecting a plurality of constellation points around the estimated value as a plurality of detected values of the transmitted data symbol, comprising: calculating the detected values of remaining transmitted data symbols by using the detected values of the transmitted data symbol, so as to obtain a plurality of detected value sets for the transmitted data symbols; and comparing the detected values of each of the detected value sets with the received data symbols, so as to select a best one among the detected value sets as a result of de-mapping the received data symbols.