KING OF PRUSSIA, Pa.-TruePosition Inc. said Uplink Time Difference of Arrival location technology has been formally standardized by the Third Generation Partnership Project, which governs development and standards for GSM and UMTS networks.
The technology already has been standardized for AMPS, TDMA and CDMA technologies, said TruePosition. U-TDOA works by comparing the time it takes a mobile station’s radio signal to reach several location measurement units (LMUs) installed at an operator’s base stations.