TDOA/GPS HYBRID WIRELESS LOCATION SYSTEM

摘要

A method and system for enhancing the accuracy and robustness of locations determined for a mobile wireless transceiver (MS) in a cellular telephone communications system integrates location-related information both from an assisted GPS device embedded in the mobile unit and from infrastructure-base d facilities that extract signal characteristic data at networked base station s (105). Available supporting collateral information may be additionally evaluated in the location determination to provide location estimates of enhanced robustness and accuracy.