Patent ID: 8238937

Claim:
A location sensing method for a mobile communication system, comprising the steps of: (a) discovering, by a source mobile node, anchor nodes within a predefined vicinity; (b) discovering neighbor mobile nodes, when a number of discovered anchor nodes is fewer than a predetermined number of reference nodes required for location sensing, discovering neighbor mobile nodes includes: (i) broadcasting a device discovery request message to the neighbor mobile nodes; and (ii) receiving device discovery response messages from the neighbor mobile nodes in response to the device discovery request message; (c) selecting at least one neighbor mobile node as a reference mobile node in conjunction with the discovered anchor nodes, the reference mobile node selected with reference to measurement information contained in the device discovery response messages in step (ii); (d) computing a location of the source mobile node in cooperation with the predetermined number of reference nodes including the discovered anchor nodes and the reference mobile node; wherein the measurement information comprise at least one of a standard deviation of measurements, a standard deviation of Received Signal Strength Indications (RSSIs) of anchor nodes, an average speed of the neighbor mobile node, and an acceleration of the source mobile node.