Patent ID: 7649994
Filing Date: 2010-01-19
Classification: H04B,H04J

Abstract:
1. A method in a wireless receiver of decoding M×N symbols in which a first codeword of length N of a first set of K codewords has been spread by a second codeword of length M of a second set of L codewords, the first codeword identifying a first information and the second codeword identifying a second information, the method comprising: receiving the M×N symbols via an air interface of the wireless receiver; for each set of M consecutive symbols, performing a first parallel code multiplying operation by multiplying the M symbols by each of the L codewords of the second set of codewords, thereby producing L first output symbols, each of the L first output symbols being associated with one of the L codewords; for each of at least one codeword of said set of L codewords: determining the first information from the codeword of the first set of codewords associated with the overall maximum second output symbol and determining the second information from the codeword of the second set of codewords associated with the overall maximum second output symbol.