TDOA/GPS hybrid wireless location system

Details TDOA/GPS hybrid wireless location system TDOA/GPS hybrid wireless location system

2003-12-30

2008-10-21

Nguyen, Duc (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S404200, C455S456300, C455S457000

Reexamination Certificate

active

07440762

ABSTRACT:
A method and system for enhancing the accuracy and robustness of locations determined for a mobile wireless transceiver in a cellular telephone communications system integrates location-related information both from an assisted GPS device embedded in the mobile unit and from infrastructure-based facilities that extract signal characteristic data at networked base stations. Available supporting collateral information may be additionally evaluated in the location determinations to provide location estimates of enhanced robustness and accuracy.

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