Method and System for Target Positioning and Tracking in Cooperative Relay Networks

  • US 20100177681A1
  • Filed: 01/09/2009
  • Published: 07/15/2010
  • Est. Priority Date: 01/09/2009
  • Status: Active Grant
First Claim
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1. A method for locating a position of a transceiver, in a cooperative relay network of nodes, comprising:

  • broadcasting, by a primary node in a cooperative relay network, a range request (RREQ) message;

    broadcasting, by a target node in the cooperative relay network in response to receiving the RREQ message, a range reply (RREP) message, wherein the RREP message includes a time difference between receiving the RREQ message and broadcasting the RREP message;

    broadcasting, by a secondary node in the cooperative relay network in response to receiving the RREQ message and the RREP message, a range data (RDAT) message, wherein the RDAT message includes a time difference between receiving the RREQ message and the RREP message; and

    determining, in a position solver of the cooperative relay network, a location of the target node based on the time differences in the RREP message and the RDAT message.

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