Locating a mobile station inside a building

Details Locating a mobile station inside a building Locating a mobile station inside a building

2007-06-29

2010-12-28

Afshar, Kamran (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S456200, C455S456500, C455S456600

Reexamination Certificate

active

07860518

ABSTRACT:
Locating mobile stations used for wireless communications even when the mobile station is within a building includes determining whether at least one indicator associated with a signal used by the mobile station identifies a single, known building location. Example types of indicators include a base station and sector identifier of a base station sector dedicated to a particular building, a delay associated with a radio frequency signal used by the mobile station when communicating from a particular building location or a combination of cell codes reported by a mobile station when it is within a particular building location. One or more of such indicators provides an indication of a building location from which the mobile station has placed a call. That building location can then be used as the determined mobile station location.

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International Preliminary Report on Patentability for International application No. PCT/US2007/023814 mailed Feb. 24, 2009.
International Search Report and Written Opinion of the International Searching Authority for International application No. PCT/US2007/023814 mailed Jun. 11, 2008.

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