TDOA/GPS HYBRID WIRELESS LOCATION SYSTEM

摘要

A method and system for enhancing the accuracy and robustness of locationsdetermined for a mobile wireless transceiver (MS) in a cellular telephonecommunications system integrates location-related information both from anassisted GPS device embedded in the mobile unit and from infrastructure-basedfacilities that extract signal characteristic data at networked base stations(105). Available supporting collateral information may be additionallyevaluated in the location determination to provide location estimates ofenhanced robustness and accuracy.