APPARATUS AND METHOD FOR RECEIVING SIGNAL IN A COMMUNICATION SYSTEM

摘要

The present invention calculates detection error offsets for respective symbols of a first transmission signal among transmission signals transmitted via a plurality of transmission antennas, by using a first channel matrix among a channel matrix formed by the transmission signals and a reception signal received via a plurality of reception antennas, and candidate symbols of the transmission signals, stores the detection error offsets for the respective symbols of the first transmission signal and the candidate symbols of the first transmission signal, calculates a Log Likelihood Ratio (LLR) of the first transmission signal by using the detection error offsets for the respective symbols of the first transmission signal, and the candidate symbols of the first transmission signal, and calculates LLRs of the transmission signals by repeating the above steps as many times as a number of the transmission signals.