Patent ID: 6931050
Filing Date: 2005-08-16
Classification: H04B,H04W

Abstract:
1. A method of processing spread spectrum signals from a plurality of traffic channels and a plurality of pilot channels, comprising the steps of: receiving data samples from the plurality of traffic channels and the plurality of pilot channels; correlating the received data samples to spreading codes to produce pilot despread values and traffic despread values; forming scale factors corresponding to the relative strengths of the plurality of traffic channels and the plurality of pilot channels; scaling the pilot despread values by the scale factors to form scaled pilot despread values; estimating channel responses using the scaled pilot despread values to produce channel coefficient estimates; combining the traffic despread values, using the channel coefficient estimates, to obtain detection statistics that correspond to the relative strengths of the plurality of traffic channels and the plurality of pilot channels; wherein the step of forming scale factors comprises the steps of: forming an error signal using the pilot channel despread values and the traffic channel despread values; and computing a scale factor based on the error signal.