Patent ID: 7301993

Claim:
A channel estimation module for use in a spread spectrum receiver, the channel estimation module comprises: matched further module operably coupled to produce a despread baseband symbol and delayed spread spectrum complex baseband samples from received spread spectrum complex baseband samples; channel matched filter operably coupled to filter the despread baseband symbol based on an estimated channel response to produce an filtered symbol; reconstruction module operably coupled to receive the filtered symbol and to produce therefrom reconstructed spread spectrum complex baseband samples, the reconstruction module including a demodulation module operably coupled to demodulate the filtered symbol to produce recaptured data, a modulation module operably coupled to modulate the recaptured data to produce a remodulated symbol, and a spread spectrum module operably coupled to spread the remodulated symbol based on a pseudorandom spreading sequence to produce the reconstructed spread spectrum complex baseband samples; and channel response determination module operably coupled to generate the estimated channel response based on differences between the delayed spread spectrum complex baseband samples and the reconstructed spread spectrum complex baseband samples.