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Automating radio enablement to facilitate power saving

  • US 9,820,226 B2
  • Filed: 05/29/2014
  • Issued: 11/14/2017
  • Est. Priority Date: 06/25/2010
  • Status: Active Grant
First Claim
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1. A method of communicating using a first wireless transceiver comprising a transmitter, a receiver, and a decryption circuit, the method comprising:

  • transitioning the first wireless transceiver, from a first power state in which the transmitter, the receiver, and the decryption circuit are each de-energized, into a second power state for a plurality of predetermined intervals, wherein during each predetermined interval in the second power state, the receiver is powered and the decryption circuit and the transmitter are each initially de-energized;

    upon determining, based on an address included within a frame received by the receiver within the second power state, that the frame is a predefined wakeup frame, powering the decryption circuit;

    upon determining, using the decryption circuit, that a signature included within the frame is valid, selectively powering the transmitter, the receiver, and the decryption circuit to enable operative communication of the first wireless transceiver with a first network; and

    while the first wireless transceiver is in operative communication with the first network, selectively re-routing traffic, initially targeted to a second wireless transceiver for communication using a second network, to the first wireless transceiver.

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