Patent ID: 9026151
Filing Date: 2015-05-05
Classification: G01S,H04W

Abstract:
1. A method comprising: determining within a first time period, by a mobile device, (a) a first velocity associated with the mobile device and a first position and (b) a first Doppler measurement between the mobile device and a base station, wherein the first Doppler measurement is referenced to a local stable clock signal of the mobile device; determining within a second time period, by the mobile device, (c) a second velocity associated with the mobile device and a second position and (d) a second Doppler measurement between the mobile device and the base station, wherein the second Doppler measurement is referenced to the local stable clock signal of the mobile device; and determining a position of the base station from at least the first velocity, the second velocity, the first position, the second position, the first Doppler measurement, and the second Doppler measurement; wherein a first direction vector from the first position to the position of the base station is different from a second direction vector from the second position to the position of the base station.