Patent ID: 6963548
Filing Date: 2005-11-08
Classification: H04B

Abstract:
1. A method for synchronizing a CDMA communications signal including the following steps: transmitting a sequence of forward link CDMA signals from a gateway to an intended subscriber via multiple transponder platforms wherein the forward link CDMA signals comprise ranging calibration data representative of the time each forward link CDMA signal was transmitted from the gateway to each transponder platform; receiving a sequence of return link CDMA signals from the intended subscriber wherein the return link CDMA signals comprise ranging calibration data representative of the time each forward link CDMA signal was received by the intended subscriber from each transponder platform; and finding a corresponding time from the ranging calibration data for transmitting subsequent CDMA signals from the gateway to each transponder platform so that subsequent CDMA signals from the multiple transponder platforms arrive at the intended subscriber in substantially the same phase.