Patent ID: 8204511
Filing Date: 2012-06-19
Classification: G01S,H04W

Abstract:
1. In a wireless location system (WLS) for use in locating a mobile transmitter, a method for determining frame and slot timing information for use in receiving an uplink signal from a user equipment device (UE) assigned to an uplink Dedicated Physical Control Channel (DPCCH), comprising: receiving uplink DPCCH signals in the uplink DPCCH at a location measurement unit (LMU) of the WLS, said uplink DPCCH signals being formatted into multiple frames and multiple slots per frame; detecting a predefined bit pattern known to be present in a plurality of predefined slots of the uplink DPCCH signals; examining the DPCCH signals across multiple frames; determining the frame and slot timing information for the uplink DPCCH based on the detected bit pattern; and using the frame and slot timing information, collecting uplink signals from the UE for use in location processing.