Patent ID: 7065369

Claim:
A method of locating and measuring a mobile station (MS), comprising: a. selecting a reference base station and neighbor base stations according to quality of received signals by a Mobile Location Center; b. calculating parameters of a large search window and a effective search window: a large search window starting location T start and stop location T stop and an effective search window starting location t start and stop location t stop , according to information concerned about the reference base station, neighbor base stations and the MS by the Mobile Location Center, and initiating a measurement request to the MS; c. setting a large search window and an effective search window for the neighbor base stations according to measured parameters and the parameters of a large search window and a effective search window by the MS; d. determining first path of the neighbor base stations with the large search window and the effective search window by the MS; e. outputting first path determination result of the neighbor base station downlink signal by the MS; f. making correlation operation with first path of the neighbor base station downlink signal and first path of the reference base station downlink signal, and obtaining Time Difference Of Arrival (TDOA); g. locating the MS according to two or more than two TDOAs obtained in Step f.