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SUB-FRAME SYNCHRONIZED RANGING

  • US 20070253400A1
  • Filed: 04/26/2006
  • Published: 11/01/2007
  • Est. Priority Date: 04/26/2006
  • Status: Active Grant
First Claim
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1. A method of communication between two or more nodes, the method comprising:

  • synchronizing the two or more nodes with a frame preamble in an initial communication frame;

    exchanging subsequent data communications between the two or more nodes without additional frame preambles until a special re-synchronization switch point occurs;

    exchanging a ranging schedule between the two or more nodes;

    exchanging ranging pulses in subsequent communication frames between the two or more nodes based on the ranging schedule; and

    determining distances between the nodes based on the ranging pulses.

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