Patent ID: 7899467

Claim:
A method comprising: (1) receiving (i) a first measured temporal difference for a first pair of multipath components of a first signal that is processed by a wireless terminal and (ii) a second measured temporal difference for a second pair of multipath components of a second signal that is processed by the wireless terminal; and (2) estimating the location of the wireless terminal based on the first measured temporal difference and the second measured temporal difference; wherein (2) estimating the location of the wireless terminal comprises: (2.1) comparing the first measured temporal difference to: (i) a first expected temporal difference of the first pair of multipath components of the first signal when the wireless terminal is at a first location, and (ii) a second expected temporal difference of the first pair of multipath components of the first signal when the wireless terminal is at a second location; and (2.2) comparing the second measured temporal difference to: (i) a first expected temporal difference of the second pair of multipath components of the second signal when the wireless terminal is at the first location, and (ii) a second expected temporal difference of the second pair of multipath components of the second signal when the wireless terminal is at the second location.