Patent ID: 8311018
Filing Date: 2012-11-13
Classification: G01S,H04W

Abstract:
1. A method of locating a mobile device comprising the steps of: (a) providing a plurality of grid points in a geographic region using a processor in a component of a communications network, each of said grid points including at least one characterizing parameter of calibration data; (b) providing a plurality of network measurement reports for a mobile device in the geographic region; (c) comparing data values associated with ones of said plurality of grid points to at least one parameter of ones of said plurality of network measurement reports; (d) generating a first location estimate of the mobile device for each of said ones of said plurality of network measurement reports (“NMR”) based on the comparison performed in step (c); (e) determining a second location estimate of the mobile device as a function of at least one of said generated first location estimates; and (f) interpolating between ones of said plurality of grid points when more than one grid point corresponds to said at least one parameter of said plurality of network measurement reports, wherein said interpolating is a function of the following relationship: for a set of N grid points, N>1, where C