Patent ID: 8693955
Filing Date: 2014-04-08
Classification: G01S,H04B,H04W

Abstract:
1. A method for determining a location of a node, the method comprising the steps of: receiving a plurality of GSM network measurement reports; determining a call group from those network measurement reports having a same identification; determining signal-strength measurements from the plurality of GSM network measurement reports within the call group; determining a location from the signal-strength measurements, wherein the location comprises an (x,y) location: averaging a plurality of locations to produce an average location, ( where x i is a x location calculated from an ith network measurement report, y i is a y location calculated from the ith network measurement report, and N is a number of network measurement reports within the call group; calculating ({circumflex over (x)} and where n=N/N max and the parameter c>0 and controls a rate of fall-off of w having a call-group size of N.