Patent ID: 8031814
Filing Date: 2011-10-04
Classification: H04L

Abstract:
1. A reception terminal apparatus in a wireless communication system, the apparatus comprising: an estimator configured to perform an initial estimation of a channel response value by using a predetermined signal among reception signals; a detector configured to detect transmission signals by using the channel response value; and an operator configured to update the channel response value by using the detected transmission signals, a detection accuracy and the reception signals, wherein the operator calculates the detection accuracy of the respective detected transmission signals by using a distance between the detected transmission signals and the reception signals to obtain a weight value for each detected transmission signal, and updates the channel response value by accumulating the channel response value multiplied by the weight value in a single data block, and wherein the operator calculates a conditional probability distribution of the respective reception signals on a condition of the channel response value and the detected transmission signals, thereby obtaining the weight value for each detected transmission signal.