Patent ID: 6944813

Claim:
A weighted decoding method for Comma-Free Reed-Solomon (CFRS) codes applied to a wideband code division multiple access (W-CDMA) system which utilizes the detection of a primary synchronization code (PSC) generated in a first step of a synchronization procedure, said CFRS codes comprising 64 code groups, each code group containing 15 code symbols; comprising the steps of: determining a received secondary synchronization code by coherently combining 16 secondary synchronization codes with said detected primary synchronization code to generate 16 coherent secondary synchronization code detection results and calculating the greatest value of said 16 coherent secondary synchronization code detection results; treating said greatest value as a weight value of a received code symbol of said CFRS codes; performing, 15 times, cyclic-shifting a received CFRS code and making a weighted correlating comparison, to acquire a cyclic-shift index for determining a frame boundary, said weighted correlating comparison being made between received code symbols of said CFRS codes and reference code symbols of said CFRS codes wherein when compared code symbols of said CFRS codes are identical, and the weight value of the compared received symbol is added to a comparison result.