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DETERMINING NODE LOCATION IN A WIRELESS NETWORK

  • US 20110249594A1
  • Filed: 04/13/2010
  • Published: 10/13/2011
  • Est. Priority Date: 04/13/2010
  • Status: Active Grant
First Claim
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1. A method for determining node location in a wireless network, comprising:

  • receiving, at a receiver node, chirped signals broadcast from transmitting nodes in the wireless network, wherein the transmitting nodes are time-synchronized with each other and location of the transmitting nodes is known;

    detecting beat frequencies created by pairs of chirped signals from different pairs of transmitting nodes;

    determining time delay differences between chirped signals in respective beat frequency pairs; and

    determining a location of the receiver node in view of the time delay differences.

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