Efficient power management in wireless local area networks

Details Efficient power management in wireless local area networks Efficient power management in wireless local area networks

2011-08-30

2011-08-30

Kincaid, Lester (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S127500

Reexamination Certificate

active

08010168

ABSTRACT:
A method of providing power management in a Wireless Local Area Network (WLAN) is presented. The method includes receiving a Traffic Indication Map (TIM) at a station, indicating the presence of buffered frames, associated with any AC, for the station at an Access Point (AP). The method further includes sending, by the station, one of an uplink data frame if one is buffered, and a null frame to retrieve the buffered frames from said AP. The station remains 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. The method may further include determining at the end of service period whether there are more frames remaining buffered for the station at the AP.

REFERENCES:
patent: 2005/0018624 (2005-01-01), Meier et al.

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