Patent ID: 7058411

Claim:
A wireless communication positioning method for a mobile station communicating with a base station, comprising the steps of: providing a geomagnetic field strength database to the base station; wherein the geomagnetic field strength database stores isomagnetic lines, and each isomagnetic line comprises coordinates with equal geomagnetic field strength; instructing the mobile station to measure geomagnetic field strength as a first measurement, and sending the first measurement to the base station; estimating a distance R between the mobile station and the base station according to a first signal transmitted from the mobile station, thereby the mobile station is known to be on an arc with the base station as its center and the distance R as its radius; searching for an isomagnetic line corresponding to the first measurement in the geomagnetic field strength database; and positioning the mobile station by finding coordinates satisfying both parameters of distance R away from the base station and lying on the isomagnetic line.