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Power saving with WNM-sleep mode

  • US 9,485,728 B1
  • Filed: 05/15/2013
  • Issued: 11/01/2016
  • Est. Priority Date: 05/15/2012
  • Status: Active Grant
First Claim
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1. A method in a communication device, the method comprising:

  • receiving from a station a request to enter a power save mode wherein the request to enter the power save mode includes one or more traffic parameters for filtering data intended for the station;

    in response to receiving the request to enter the power save mode, enabling a set of services, wherein the set of services includes (i) buffering of data intended for the station and (ii) filtering of data intended for the station, according to the one or more traffic parameters, to determine which data intended for the station should be buffered and which data destined for the station should be discarded;

    after enabling the set of services, receiving from the station an indicator that the station is awake;

    in response to receiving the indicator that the station is awake, disabling the set of services;

    after disabling the set of services, receiving from the station a communication frame having an indicator that the station is no longer awake, wherein the communication frame does not include the one or more traffic parameters for filtering data intended for the station;

    in response to receiving the indicator that the station is no longer awake, again enabling the set of services;

    after again enabling the set of services, receiving from the station a request to exit the power save mode; and

    in response to receiving the request to exit the power save mode, disabling the set of services.

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