Patent ID: 6445728
Filing Date: 2002-09-03
Classification: H04W

Abstract:
A method of establishing a search window size for a mobile station in a cellular system having a present radio morphology, said mobile station being provided with communication services from a plurality of base transceiver stations (BTSs), each of said plurality of BTSs having an inherent pilot signal, said mobile station searching for said pilot signal at each searcher position having a constant time interval within a search window on a time-axis, said method comprising the steps of:finding a correlation energy value at each searcher position by which a searcher of said mobile station searches for pilot signals received from said plurality of BTSs at each searcher position within a predetermined first search window and outputting a result of the searching; gathering said result of the searching outputted from said searcher of said mobile station using a diagnostic monitor (DM) connected to said mobile station; and estimating the size of a second search window to be applied to the present radio morphology based on the gathered result of the searching and applying the second search window size to said mobile station, wherein said step of gathering said result of the searching repeatedly gathers a maximum index samples, said maximum index samples including information denoting the location of a particular searcher position from the center of the first search window, and wherein the particular searcher position has the highest correlation energy value within the first search window.