Patent ID: 7916071
Filing Date: 2011-03-29
Classification: G01S

Abstract:
1. A method for determining a reference location of a wireless device, comprising the steps of: (a) receiving a location request for the wireless device, the location request failing to identify an approximate location for the wireless device; (b) receiving a position information element (“IE”) from the wireless device; (c) mapping an Internet protocol (“IP”) address of a node serving the wireless device to an estimated area; and (d) if the estimated area defined by the mapped IP address is within a second area defined as a function of at least one of a mobile country code (“MCC”), mobile network code (“MNC”), and an Area-Identification (“Area-ID”), or if the estimated area defined by the mapped IP address is available and no second area is defined as a function of at least one of an MCC, MNC, and Area-ID, determining a reference location for the wireless device as a function of a quality of the estimated area defined by the mapped IP address or a quality of the second area defined as a function of at least one of an MCC, MNC, and Area-ID.