Signal path detection for wireless networks including repeaters

Details Signal path detection for wireless networks including repeaters Signal path detection for wireless networks including repeaters

2002-06-21

2008-08-12

Anderson, Matthew (Department: 2618)

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

C455S020000, C455S023000, C455S424000, C455S456500, C455S561000, C455S095000, C370S315000, C370S492000, C370S501000

Reexamination Certificate

active

07412207

ABSTRACT:
There is disclosed a method of determining the path of a signal between a donor network element and a remote station, the donor network element being associated with at least one repeater, comprising the steps of: receiving at the remote station a plurality of signals associated with a plurality of network elements; calculating an estimate of the distance between the remote station and each network element, including an estimate of the distance between the remote station and each repeater associated with the donor network element; determining the one of said estimates of the distance between the donor network element and at least one, associated repeater and remote station which most closely approximates to the distance between the other network elements and the remote station; and selecting that donor network element/repeater to be the source of the signal.

REFERENCES:
patent: 5260943 (1993-11-01), Comroe et al.
patent: 6415155 (2002-07-01), Koshima et al.
patent: 6839539 (2005-01-01), Durrant et al.
patent: 7039418 (2006-05-01), Amerga et al.
patent: WO 01/99444 (2001-12-01), None
patent: WO 02/17669 (2002-02-01), None
Spirito et al, “Experimental Performance of Methods to Estimate the Location of Legacy Handsets in GSM” IEEE VTS 54thVehicular Technology Conference, 2001. VTC 2001, Oct. 7-11, 2001, vol. 4, pp. 2716-2720.

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