Patent ID: 9743369
Date: 2017-08-22
CPC Classifications: G01S,H04W

Claim:
1. A method, comprising: translating, by a system comprising a processor, observed time differences for signals that were received by a first mobile device from macrocell devices in range of the first mobile device that correspond to a location of the first mobile device to translated observed time differences that correspond to a reference location, wherein the reference location and the location are different locations; determining, by the system, reference time differences for the macrocell devices as a function of the reference location and the translated observed time differences; receiving, by the system, second observed time differences of signals from a second mobile device, wherein the second mobile device is different from the first mobile device; and calibrating the second observed time differences of signals with the reference time differences to create calibrated second observed time differences of signals, wherein the calibrating the second observed time difference comprises subtracting the reference time differences from the second observed time differences of signals for the macrocell devices.