Patent ID: 8755304

Claim:
A method comprising: determining, for each of a plurality of reference wireless network devices of a communication network, a distance between a first wireless network device and the reference wireless network device based, at least in part, on a round trip transit time between the first wireless network device and the reference wireless network device; selecting a first subset of the plurality of reference wireless network devices for determining a plurality of potential locations of the first wireless network device based, at least in part, on the distance between the first wireless network device and each of the plurality of reference wireless network devices; selecting a second subset of the plurality of reference wireless network devices for estimating a current location of the first wireless network device based, at least in part, on the first subset of the reference wireless network devices and the distance between the first wireless network device and each of the plurality of reference wireless network devices; determining the plurality of potential locations based, at least in part, on the first subset of the reference wireless network devices; and estimating the current location from the plurality of potential locations based, at least in part, on the second subset of the reference wireless network devices.