Patent ID: 7193984
Filing Date: 2007-03-20
Classification: H04J

Abstract:
1. A method for determining a time offset of a CDMA signal including data signal symbols borne on a plurality of data channels and pilot signal symbols borne on a pilot channel, each of said data channels being spread with a corresponding spreading code to a chip sequence and subjected to amplification factors, wherein the combined CDMA signal from the data channels and the pilot channel is multiplied by a scrambling code, and wherein the CDMA signal has undergone during transfer the time offset to be determined by a number of chips, said method comprising: for each of a plurality of time offset estimates, performing the steps of: determining a maximum of the amplification factors for the time offset estimates when a selected data channel is active, or determining a minimum of the amplification factors for the time offset estimates when the selected data channel is not active.