Patent ID: 9013350
Filing Date: 2015-04-21
Classification: G01S,H04W

Abstract:
1. A method comprising: determining an area in which a mobile device may be located using a satellite-based positioning system (SPS), the area determined using the SPS including a set of multiple location estimates determined from satellite measurements from at least two satellites whose signals are received by the mobile device; determining an area in which the mobile device may be located using a wireless local area network based positioning system (WLAN-PS), the area determined using the WLAN-PS determined from one or more locations in a reference database associated with one or more wireless local area network (WLAN) access points (APs) detected by the mobile device; comparing the area determined using the SPS to the area determined using the WLAN-PS; in response to the area determined using the SPS being greater than a threshold distance from the area determined using the WLAN-PS, concluding that the one or more WLAN APs have been moved to be about the area determined using the SPS; and updating the one or more locations of the one or more WLAN APs in the reference database.