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Method and system for detecting address rotation and related events in communication networks

  • US 7,971,253 B1
  • Filed: 06/29/2007
  • Issued: 06/28/2011
  • Est. Priority Date: 11/21/2006
  • Status: Active Grant
First Claim
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1. A method for detecting address rotation by a device in a communication network, the method comprising:

  • receiving, at a first time, a first message transmitted by the device;

    receiving, at a second time, a second message transmitted by the device;

    processing the first message to determine a first sequence number included in the first message and a first transmitter address included in the first message;

    processing the second message to determine a second sequence number included in the second message and a second transmitter address included in the second message;

    determining that the second transmitter address is different from the first transmitter address;

    determining a time gap between the first time and the second time;

    determining, based, in part, on the time gap, a sequence threshold value;

    determining a sequence difference between the first sequence number and the second sequence number;

    determining that the sequence difference is less than the sequence threshold value; and

    providing an indication of address rotation by the device,wherein the address rotation process including a single wireless device transmitting a plurality of messages including a plurality of distinct transmitter addresses, respectively.

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