Estimating location of a communications device

Details Estimating location of a communications device Estimating location of a communications device

2006-06-27

2009-12-15

Tarcza, Thomas H (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Position indicating

Reexamination Certificate

active

07633443

ABSTRACT:
In determining a location estimate for a communications device, at least one first location estimate is determined based on information relating to signals transmitted between the communications device and at least one first antenna of a communications system. At least one second antenna of the communications system is determined, the at least second antenna not used for communication by the communications device. Thereafter, a second location estimate for the communications device is determined based at least on the at least one first location estimate and information relating to the at least one second antenna.

REFERENCES:
patent: 5218367 (1993-06-01), Sheffer et al.
patent: 7120431 (2006-10-01), Huo et al.
patent: 2004/0152471 (2004-08-01), MacDonald et al.
patent: WO 2004/028170 (2004-04-01), None
3GPP TS 25.305 V4.6.0, Sep. 2003, Technical Specification, “3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Stage 2 functional specification of User Equipment (UE) positioning in UTRAN (Release 4)”, pp. 1-49.

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