Patent ID: 8223074
Filing Date: 2012-07-17
Classification: G01S,H04W

Abstract:
1. A method of using a Wireless Local Area Network (WLAN) and satellite enabled device to infer that a reference location associated with a detected WLAN access point (AP) is not the present location of the AP, the method comprising: identifying WLAN APs detected by the WLAN and satellite enabled device; accessing a reference database to obtain a reference location associated with at least one of the WLAN APs; receiving at least one possible Satellite Positioning System (SPS) location solution of the device based on satellite measurements from at least two satellites; estimating a distance between the reference location associated with the WLAN AP and the at least one possible SPS location solution; and inferring that the reference location associated with the WLAN AP is not the present location of the WLAN AP if the distance between the reference location associated with the WLAN AP and the at least one SPS location solution is above a predetermined threshold.