Patent ID: 7427952

Claim:
A mobile LMU-enhanced wireless location system (WLS), comprising: a WLS comprising a plurality of stationary location measuring units (LMUs) overlaid on a commercial wireless communications system such that said plurality of LMUs are collocated with respective base transceiver stations (BTSs) of said wireless communications system; and a mobile platform supporting a mobile LMU and a Global Positioning System (GPS) module, wherein the GPS module is configured to provide a time and frequency reference as well as data representing the position and velocity of the mobile LMU, and wherein said mobile LMU includes a downlink receiver configured to receive a downlink signal from a base transceiver station and for deriving a replica signal from said downlink signal, said replica signal representing a replica of a transmission received at said base transceiver station, and wherein said mobile LMU further includes a receiver configured to receive uplink radio frequency (RF) transmissions from a wireless device and memory for storing data samples of received transmissions, wherein said mobile platform further supports a correlation processor configured to correlate stored data representing a received transmission with a replica of said received transmission received via said downlink signal.