Patent ID: 9042915
Filing Date: 2015-05-26
Classification: G01S,H04W

Abstract:
1. A method of estimating the location of a wireless terminal, the method comprising: receiving, at a location engine, a first signal value whose value is evidence of the location of the wireless terminal at time t(1); receiving, at the location engine, a second signal value whose value is evidence of the location of the wireless terminal at time t(1); generating, at the location engine, a first hypothesis for the location for the wireless terminal at time t(1) based on the first signal value having first weight and the second signal value having second weight, wherein the first weight is greater than the second weight; generating, at the location engine, a second hypothesis for the location for the wireless terminal at time t(1) based on the nearness of a location on a road in relation to the first hypothesis for the location of the wireless terminal at time t(1); and generating, at the location engine, an estimate for the location of the wireless terminal at time t(2) based on: transmitting, from the location engine, the estimate for the location of the wireless terminal at time t(2) for use by a location-based application; wherein the first weight and the second weight are both real non-negative numbers.