Methods and Systems for Positioning Based on Observed Difference of Time of Arrival

摘要

Disclosed are systems, methods and devices for computing an estimated location of a mobile device based, at least in part, on an observed difference of time of arrival of messages arriving at the mobile device. In particular implementations, such observed time arrival may comprise a difference between receipt at the mobile device a first message transmitted from a first transceiver device to a second transceiver device and receipt at the mobile device of a second message transmitted by the second transceiver device in response to the first message.