Title:
EFFICIENT POWER MANAGEMENT IN WIRELESS LOCAL AREA NETWORKS
Document Type and Number:
WIPO Patent Application WO2005069806
Kind Code:
A3
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.
Inventors:
BENVENISTE MATHILDE (US)
Application Number:
PCT/US2005/001029
Publication Date:
October 26, 2006
Filing Date:
January 12, 2005
Export Citation:
Assignee:
AVAYA TECHNOLOGY CORP (US)
BENVENISTE MATHILDE (US)
BENVENISTE MATHILDE (US)
International Classes:
G08C17/00; H04B1/16; H04L12/28; H04L12/56; H04B7/005; H04W52/02; H04W52/34; H04W52/44; H04W74/04; H04W84/12
Foreign References:
| US5991287A | 1999-11-23 | |||
| US6665520B2 | 2003-12-16 | |||
| US6622251B1 | 2003-09-16 |
Other References:
"IEEE Std. 802.11-1997 Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications", 26 June 1997 (1997-06-26), pages 128 - 136, XP008071059
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