Patent ID: 7075970
Filing Date: 2006-07-11
Classification: H03M,H04L,H04W

Abstract:
1. A method of decoding turbo-encoded, received data in CDMA (Code Division Multiple Access) system which carries out closed-loop control to electric power of a data transmitter, based on a signal to interference ratio, said method comprising the steps of: (a) weighting reverse-diffused, received data, based on both said signal to interference ratio and data obtained when said signal to interference ratio is measured; (b) carrying out ACS operation or comparison/selection operation in a process of updating alpha metric, a process of updating beta metric, and a process for computing likelihood, to the thus weighted, received data; and (c) compensating for results of said ACS operation, based on a predetermined value associated with a difference generated when said ACS operation or said comparison/selection operation is carried out.