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TWO-WAY RANGING MESSAGING SCHEME

  • US 20110292819A1
  • Filed: 09/03/2010
  • Published: 12/01/2011
  • Est. Priority Date: 05/26/2010
  • Status: Active Grant
First Claim
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1. A method of wireless communication, comprising:

  • transmitting a first packet from a first apparatus to a second apparatus;

    receiving a second packet from the second apparatus as a result of the transmission of the first packet;

    transmitting a third packet from the first apparatus to the second apparatus after the reception of the second packet;

    determining a first time value associated with the reception of the second packet and a second time value associated with the transmission of the third packet;

    receiving information from the second apparatus, wherein the information is indicative of a third time value associated with the transmission of the second packet and a fourth time value associated with the reception of the third packet; and

    determining a distance between the first apparatus and the second apparatus based on the first time value, the second time value, and the received information.

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