Patent ID: 6330272
Filing Date: 2001-12-11
Classification: H03G,H04B,H04J,H04W

Abstract:
A method for receiving a spread spectrum data signal in a spread spectrum communication system having a receiver, the method comprising:at the receiver:receiving a spread spectrum signal;despreading the received signal with a plurality of delayed versions of a pilot chip code to produce a plurality of despread pilot signal versions, the delayed pilot chip code versions are centered around a center delay, the center delay is based on a left mass being a sum of the despread pilot signal versions having a delay less than the center delay and a right mass being a sum of the despread pilot signal versions having a delay greater than the center delay;weighting each despread pilot signal version by a particular weight;combining the weighted despread pilot signal versions as a combined despread pilot signal;adjusting each pilot version's particular weight based on in part the combined despread pilot signal;despreading the received signal with a plurality of delayed versions of the data chip code to produce a plurality of despread data signal versions;weighting each despread data signal version by the particular weight of a corresponding one of the weighted pilot signal versions; andcombining the weighted despread data signal versions to recover the data signal.