Patent ID: 8862153
Filing Date: 2014-10-14
Classification: G01S,H04B

Abstract:
1. An automated portable call collection unit for gathering information used in testing the accuracy of a wireless mobile device locating system, the automated portable call collection unit comprising: a GPS ground truth detector configured to detect a location of the automated portable call collection unit based on GPS signals; a cellular GPS detector configured to detect GPS signals identified by a signal-identification communication from the wireless mobile device locating system; an internal clock configured to keep time and to synchronize its time to GPS time as announced periodically by GPS time signals; a cellular network communication system configured to: a controller configured to repeatedly cause the cellular network communication system to wirelessly request and receive the signal-identification communication and to send the information about the GPS signals, the locations, and the times, all in a manner that insures that the accuracy of the wireless mobile device locating system is not tested before the internal clock is first synchronized to GPS time following application of operating power to the automated portable call collection unit.