Patent ID: 8638725

Claim:
A method of increasing the accuracy of a resulting location estimate for a WLAN and cellular enabled device using cellular positioning information, the method comprising: identifying at least one wireless local area network (WLAN) access point (WLAN AP) in signal range of a WLAN and cellular enabled device based on wireless signals received by the WLAN and cellular enabled device transmitted by the at least one WLAN AP; retrieving an estimated location of the at least one WLAN AP stored in a reference database; determining a cellular-based location estimate for the WLAN and cellular enabled device based at least in part on cellular measurements received from at least one cell tower by the WLAN and cellular enabled device; comparing the cellular-based location estimate to the estimated location of the at least one WLAN AP retrieved from the reference database to determine whether a distance between the estimated location of the at least one WLAN AP and an estimated location of the at least one cell tower exceeds a pre-determined threshold; upon the condition that the distance between the estimated location of the at least one WLAN AP retrieved from the reference database and the estimated location of the at least one cell tower exceeds the pre-determined threshold, inferring that the estimated location of the at least one WLAN AP is inaccurate; and rejecting the at least one WLAN AP that is inferred to have an inaccurate estimated location when determining the resulting location estimate for the WLAN and cellular enabled device based at least on the cellular-based location estimate.