Patent ID: 8248988
Filing Date: 2012-08-21
Classification: G01S,H01Q,H04B,H04W

Abstract:
1. A method for locating a subscriber unit, the method comprising: transmitting, from a plurality of antennas of a communication network, a plurality of spread spectrum signals having an associated code; receiving, at the subscriber unit, the plurality of spread spectrum signals at and determining a plurality of chip timing differences from the plurality of spread spectrum signals, wherein each determined chip timing difference indicates a difference in received chip offset between a pair of antennas of the plurality of antennas; determining a location of the subscriber unit using hyperbolas and the determined plurality of chip timing differences; transmitting, from the subscriber unit, location information over a spread spectrum signal to the communication network which provides a location service; and displaying information indicative of the determined location at the subscriber unit, wherein the displayed information includes a street address.