Doc.: IEEE 802.11-11/0046r2 January 2011 Stefan Aust, NEC Communication Systems Submission Slide 1 AP Power Saving Authors: Date: January 15, 2011 NameCompanyAddressPhoneemail.

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doc.: IEEE /0046r2 January 2011 Stefan Aust, NEC Communication Systems Submission Slide 1 AP Power Saving Authors: Date: January 15, 2011 NameCompanyAddressPhone Stefan Aust NEC Communication Systems, Ltd Shimonumabe, Nakahara-ku, Kawasaki, Kanagawa , Japan

doc.: IEEE /0046r2 January 2011 Stefan Aust, NEC Communication Systems Submission Slide 2 Objective This contribution proposes power saving features following the IEEE ah Call for Proposals [1]. This contribution discusses the need for Access Point (AP) electric power saving features related to IEEE ah use cases. AP electric power saving features can be realized by providing/using enhanced sleep functions.

doc.: IEEE /0046r2 January 2011 Stefan Aust, NEC Communication Systems Submission Slide 3 Motivation There is a demand/market for power saving APs –APs with proprietary power saving features are on the market. –No standardized AP power saving procedure is available/used Switching AP on/off Switching Wi-Fi (radio) on/off Re-association IEEE v [2] will have some (generic) power saving features –BSS Termination, WNM-Sleep Mode for non-AP STAs –Smart? –Re-association? AP power saving features are needed for IEEE ah

doc.: IEEE /0046r2 January 2011 Stefan Aust, NEC Communication Systems Submission Slide 4 Discussion IEEE ah Use Cases show a significant large number of APs [3] –Smart grid –Intelligent Transport Systems –Surveillance There is a demand for AP power saving features to reduce power consumption –Outdoor APs –Home Network APs –Mobile APs AP power saving features will increase the user/market acceptance of IEEE ah (green IT).

doc.: IEEE /0046r2 January 2011 Stefan Aust, NEC Communication Systems Submission Slide 5 Proposal Include AP power saving features in IEEE ah –AP power saving –AP awake/sleep transition –Wake-up –Re-association Detailed proposal in March

doc.: IEEE /0046r2 January 2011 Stefan Aust, NEC Communication Systems Submission Slide 6 References [1]IEEE P Wireless LANs, IEEE ah Call for proposals, IEEE /1373r0, [2] IEEE v Task Group [3] IEEE P Wireless LANs, Proposed IEEE ah Use Cases, IEEE /0017r0

doc.: IEEE /0046r2 January 2011 Stefan Aust, NEC Communication Systems Submission Slide 7 Acknowledgement This contribution was funded in part by a grant from the Promotion program for Reducing global Environmental loaD through ICT innovation (PREDICT) led by the Ministry of Internal Affairs and Communications, Japan.