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Efficient power management in wireless local area networks

  • US 20050152324A1
  • Filed: 01/12/2005
  • Published: 07/14/2005
  • Est. Priority Date: 01/12/2004
  • Status: Active Grant
First Claim
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1. A method of providing power management in a Wireless Local Area Network (WLAN) comprising:

  • receiving a Traffic Indication Map (TIM) at a station, said TIM indicating the presence of buffered frames, associated with any AC, for said station at an Access Point (AP);

    sending, by said station, one of an uplink QoS Data frame if one is buffered, and a Null frame to retrieve said buffered frames from said AP; and

    said station remaining awake to receive frames from the AP until a downlink frame is received containing an indication that it is the last frame to be transmitted in the service period.

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