Geolocation using enhanced timing advance techniques

Details Geolocation using enhanced timing advance techniques Geolocation using enhanced timing advance techniques

2005-09-27

2005-09-27

Perez-Gutierrez, Rafael (Department: 2686)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S446000, C342S450000

Reexamination Certificate

active

06950664

ABSTRACT:
A method of geolocation that is backward compatible and more accurate than the well-known Cell/Sector ID method is provided. The geolocation method provided comprises the steps of determining a set of candidate locations for the mobile-station based on a timing advance value associated with the mobile-station and determining a location of the mobile-station using the set of candidate locations and signal strength measurements associated with same cell-neighboring sectors or different cell-neighboring sectors.

REFERENCES:
patent: 5423067 (1995-06-01), Manabe
patent: 6321083 (2001-11-01), Vaara et al.
patent: 6570529 (2003-05-01), Richton et al.
patent: 2003/0119524 (2003-06-01), Carlsson
patent: 2003/0139188 (2003-07-01), Chen et al.
patent: 2004/0203921 (2004-10-01), Bromhead et al.

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