Patent ID: 7602838

Claim:
A method for processing a received, direct-sequence code-division multiple-access (DS-CDMA) baseband signal to recover information bits, comprising: A) receiving the DS-CDMA baseband signal which includes composite noise and transmitted symbols, each transmitted symbol including one or more modulated bits; B) forming a first set of modulated bit estimates based on the received signal; C) performing a decoding operation using the first set of modulated bit estimates to produce extrinsic information associated with the modulated bits; D) for multiple delays of the received signal, performing a despreading operation using the received baseband signal to produce multiple despread values corresponding to a transmitted symbol; E) forming an interference estimate using the extrinsic information and forming a second set of modulated bit estimates using the despread values and the interference estimate; and F) performing decoding operations using the second set of modulated bit estimates to produce information bit estimates.