Patent ID: 6871077

Claim:
A method for geolocating a mobile unit from a single base station having a plurality of randomly located antennas wherein the base station and mobile unit are receiving, one from the other, communication signals and pilot signals in accordance with a known air interface protocol comprising the steps of: (a) providing a database of plural sets of measurements selected from the group consisting of reference ambiguous lines of bearing, reference pilot signal data, and reference pilot finger data, wherein said database is indexed by range from the base station and angle of bearing from the base station; (b) determining a set of real-time measurements selected from the group consisting of real-time ambiguous lines of bearing, real-time pilot signal data, and real-time pilot finger data; (c) determining an estimated range of the mobile unit from the base station; and (d) comparing the set of real-time measurements with the sets of reference measurements to thereby determine the range and bearing of the mobile unit from the base station so as to geolocate the mobile unit.