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Wireless device and method for rekeying with reduced packet loss for high-throughput wireless communications

  • US 9,231,760 B2
  • Filed: 01/13/2014
  • Issued: 01/05/2016
  • Est. Priority Date: 12/21/2009
  • Status: Active Grant
First Claim
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1. A wireless communications device comprising:

  • processing circuitry, memory, and physical-layer circuitry, the wireless communications device configured totransmit, in a rekeying initiation response message of a four-way handshake, a robust security network (RSN) information element (IE) with an extended key ID field containing a 0 or a 1 to indicate whether the device supports use of a proposed extended key ID in unicast communication;

    receive, in a response validation message of the four-way handshake, a key ID key data encapsulation (KDE); and

    transmit, in a rekeying confirmation message of the four-way handshake, the key ID KDE to indicate agreement to use the proposed extended key ID.

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