System and method for geolocating a wireless mobile unit...

Details System and method for geolocating a wireless mobile unit... System and method for geolocating a wireless mobile unit...

2005-03-22

2005-03-22

Trost, William (Department: 2684)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S456100, C455S561000, C342S463000

Reexamination Certificate

active

06871077

ABSTRACT:
A system and method for geolocating a mobile unit from a single base station is described. Communication signals and pilot signal information from a mobile unit are received at a base station with randomly-located antennas. Certain parameters of the signals are detected and a set of real-time, but ambiguous, location measurements is determined. The real-time measurements are compared to reference measurements previously stored in a database, indexed by range and bearing from the base station, to find the best match and thereby the geolocation of the mobile unit. A time history of the mobile unit's position is stored and compared with static information from maps and other geomorphological data to further refine the geolocation of the mobile unit.

REFERENCES:
patent: 4728959 (1988-03-01), Maloney et al.
patent: 4845504 (1989-07-01), Roberts et al.
patent: 4891650 (1990-01-01), Sheffer
patent: 5056106 (1991-10-01), Wang et al.
patent: 5218618 (1993-06-01), Sagey
patent: 5317323 (1994-05-01), Kennedy et al.
patent: 5327144 (1994-07-01), Stilp
patent: 5365544 (1994-11-01), Schilling
patent: 5404376 (1995-04-01), Dent
patent: 5506864 (1996-04-01), Schilling
patent: 5508708 (1996-04-01), Ghosh et al.
patent: 5512908 (1996-04-01), Herrick
patent: 5515419 (1996-05-01), Sheffer
patent: 5519760 (1996-05-01), Borkowski et al.
patent: 5592180 (1997-01-01), Yokev et al.
patent: 5675344 (1997-10-01), Tong et al.
patent: 5736964 (1998-04-01), Ghosh et al.
patent: 5914687 (1999-06-01), Rose
patent: 5945948 (1999-08-01), Buford et al.
patent: 5959580 (1999-09-01), Maloney et al.
patent: 5970413 (1999-10-01), Gilhousen
patent: 6047192 (2000-04-01), Maloney et al.
patent: 6097336 (2000-08-01), Stilp
patent: 6104344 (2000-08-01), Wax et al.
patent: 6104345 (2000-08-01), Tweg et al.
patent: 6108555 (2000-08-01), Maloney et al.
patent: 6108557 (2000-08-01), Wax et al.
patent: 6119013 (2000-09-01), Maloney et al.
patent: 6127975 (2000-10-01), Maloney
patent: 6184829 (2001-02-01), Stilp
patent: 6249680 (2001-06-01), Wax et al.
patent: 6281834 (2001-08-01), Stilp
patent: 6288675 (2001-09-01), Maloney
patent: 6288676 (2001-09-01), Maloney
patent: 6317081 (2001-11-01), Stilp
patent: 6317604 (2001-11-01), Kovach, Jr. et al.
patent: 6334059 (2001-12-01), Stilp et al.
patent: 6366241 (2002-04-01), Pack et al.
patent: 6400320 (2002-06-01), Stilp et al.
patent: 6456852 (2002-09-01), Bar et al.
patent: 6463290 (2002-10-01), Stilp et al.
patent: 6496701 (2002-12-01), Chen et al.
patent: 6580911 (2003-06-01), Clancy
patent: 6646604 (2003-11-01), Anderson
patent: 6771971 (2004-08-01), Smith

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