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Method to precisely and securely determine propagation delay and distance between sending and receiving node in packet network and packet network node system for executing the method

  • US 20070189187A1
  • Filed: 02/06/2007
  • Published: 08/16/2007
  • Est. Priority Date: 02/11/2006
  • Status: Active Grant
First Claim
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1. A method of measuring a propagation delay between nodes in a packet network, the method comprising:

  • transmitting a ping packet from a first node to a second node through at least one of a plurality of third nodes;

    determining an intermediate node delay of the ping packet at one of the plurality of third nodes through which the ping is transmitted and recording the intermediate node delay in the ping packet; and

    determining a propagation delay by using the intermediate node delay.

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