Patent ID: 8331955
Filing Date: 2012-12-11
Classification: G01S,H04W

Abstract:
1. A method for use by a wireless location system (WLS) associated with a CDMA-based wireless communications network (WCN), comprising: receiving, at a first location measuring unit (LMU), a CDMA downlink signal broadcast by a sector of a base station; determining, by the first LMU, sector timing information for the sector in response to synchronizing with the downlink signal, wherein the determination of sector timing information comprises, sending the sector timing information from the first LMU to a second LMU; receiving, at the first and second LMUs, uplink signals from a mobile device communicating with the sector of the base station; determining, at the first and second LMUs, time of arrival information for the uplink signals received at the first and second LMUs using the sector timing information; and determining a geographic location of the mobile device using the time of arrival information.