What is a “location-determination technology”?
A location-determination technology is a system that uses the known position of reference points and satellite signals to determine the location of mobile devices. As reference points, XPS uses Wi-Fi routers and Cellular base-stations (Cell ID), each of which broadcasts a signal that includes a unique identifier. When a device is in range of any of these reference points, Skyhook’s system matches the signal data and unique identifiers to those in its database and also incorporates GPS satellite signals to determine the user’s location.