Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2003-04-24
2008-12-02
Nguyen, Quynh H (Department: 2614)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456200, C455S456300, C701S214000
Reexamination Certificate
active
07460870
ABSTRACT:
Methods and apparatuses for location determination in wireless assisted positioning systems. In one aspect of the disclosed method and apparatus, a method to determine a position of a mobile device in a positioning system includes: computing a second estimated position of a mobile device using a first assumed geometric relationship for a location of the mobile device in relation to a navigational transmitter (e.g., a basestation, a pseudolite, or a Satellite Positioning System (SPS) satellite). The first geometric relationship is linearly independent from the altitude of the mobile device (e.g., obtained from an altitude aiding) and a second geometric relationship based on range information (e.g., a range from the mobile device to the navigational transmitter, a pseudorange, an arrival time, or a round trip time) measured with respect to the navigational transmitter. In another embodiment of the disclosed method and apparatus, the method to determine a position of a mobile device in a positioning system includes: determining an estimated clock bias from a strength indicator of a signal transmitted from a navigational transmitter to the mobile device.
REFERENCES:
patent: 5430657 (1995-07-01), Kyrtsos
patent: 5490073 (1996-02-01), Kyrtsos
patent: 5724660 (1998-03-01), Kauser et al.
patent: 5732354 (1998-03-01), McDonald
patent: 6081229 (2000-06-01), Soliman et al.
patent: 6289280 (2001-09-01), Fernandez-Corbaton et al.
patent: 6313786 (2001-11-01), Sheynblat et al.
patent: 6353743 (2002-03-01), Karmel
patent: 6459903 (2002-10-01), Lee
patent: 7012772 (2006-03-01), Vis
Database WPI, Derwent Publications Ltd., London, GB; AN 2001255203, XP002255203 & KR, Samsung Electronics Co. Ltd., Oct. 16, 2000, abstract.
Moeglein Mark
Riley Wyatt
Mays Andrea L.
Nguyen Quynh H
QUALCOMM Incorporated
Rouse Thomas R.
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