Patent ID: 7283824

Claim:
A method for determining a location information of a mobile station, the method comprising: (1) pre-storing N translation relationships respectively between N identifications and N location informations of N base stations to the mobile station; (2) receiving M signals from M base stations respectively by the mobile station; (3) comparing strengths of M signals with each other to determine a first base station, having a strongest signal, and other (M-1) base stations respectively having (M-1) signals, (4) calculating P strength differences of the strongest signal with P signals selected from the (M-1) signals respectively; (5) determining the first base station as being the nearest base station when all strength differences are respectively larger than a predetermined value, (6) receiving the identification of the nearest base station from the nearest base station; (7) determining a location information corresponding to the identification of the nearest base station by using the translation relationship.