Patent ID: 6191738
Filing Date: 2001-02-20
Classification: G01S,H04B

Abstract:
A method for finding a timing offset for a remote unit at a base station within a communication system, the method comprising the steps of:(a) receiving a location of the remote unit along with a request to find the timing offset between the remote unit and the base station, wherein the location of the remote unit was performed by a second base station;(b) determining a distance that the remote unit is from the base station based on the first location;(c) determining a size of a known sequence based on the location of the remote unit, wherein the size of the known sequence varies in length based on the distance that the remote unit is from the base station; and(d) finding a timing offset for the remote unit at the base station by correlating the known sequence to a signal received by the remote, wherein the known sequence has its size as determined in step (c).