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Channelization Selection for 802.11ah
Month Year doc.: IEEE yy/xxxxr0 July 2012 Channelization Selection for ah Date: Name Affiliations Address Phone Huai-Rong Shao Samsung Electronics 75 West Plumeria Dr, San Jose, CA 95134 Chiu Ngo Yongho Seok LG Electronics LG R&D Complex Anyang-Shi, Kyungki-Do, Korea Jinsoo Choi Jeongki Kim Jin Sam Kwak ChaoChun Wang MediaTek James Wang Jianhan Liu Vish Ponnampalam James Yee Thomas Pare Kiran Uln Matthew Fischer Broadcom 190 Mathilda Place, Sunnyvale, CA Eric Wong Fei Tong CSR Churchill House, Cambridge business park, CB4 0WZ Stefan Aust NEC 1753 Shimonumabe, Nakahara-ku, Kawasaki, Kanagawa , Japan Slide 1 Huai-Rong Shao, et. al. Samsung Electronics John Doe, Some Company
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Authors continued: July 2012 Month Year doc.: IEEE 802.11-yy/xxxxr0
Name Affiliations Address Phone Minyoung Park Intel Corp. Tom Tetzlaff Emily Qi Yong Liu Marvell Hongyuan Zhang Sudhir Srinivasa Simone Merlin Qualcomm 5775 Morehouse Dr, San Diego, CA Alfred Asterjadhi Amin Jafarian Santosh Abraham Menzo Wentink Hemanth Sampath VK Jones George Calcev Huawei Rolling Meadows, IL USA Osama Aboul Magd Young Hoon Betty Zhao David Yangxun Bin Zhen Sun, Bo ZTE Lv, Kaiying Slide 2 Huai-Rong Shao, et. al. Samsung Electronics John Doe, Some Company
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Authors continued: July 2012 Name Affiliations Address Phone email
Month Year doc.: IEEE yy/xxxxr0 July 2012 Authors continued: Name Affiliations Address Phone Minho Cheong ETRI 138 Gajeongno, Yuseong-gu, Dajeon, Korea Jae Seung Lee Hyoungjin Kwon Heejung Yu Jaewoo Park Sok-kyu Lee Sayantan Choudhury Nokia Taejoon Kim Klaus Doppler Chittabrata Ghosh Esa Tuomaala Rojan Chitrakar Panasonic Ken Mori Shoukang Zheng I2R 1 Fusionopolis Way, #21-01 Connexis Tower, Singapore Haiguang Wang Wai Leong Yeow Zander Lei Jaya Shankar Anh Tuan Hoang Joseph Teo Chee Ming Shusaku Shimada Yokogawa Co. Nakacho Musashino-shi, Tokyo ,Japan Mitsuru Iwaoka Yokogawa Electric Co. Slide 3 Huai-Rong Shao, et. al. Samsung Electronics John Doe, Some Company
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doc.: IEEE 802.11-09/1234r0doc.: IEEE 802.11-yy/xxxxr0
November 2009 doc.: IEEE /1234r0doc.: IEEE yy/xxxxr0 doc.: IEEE yy/xxxxr0 July 2012 Motivation After channelization is done in US and other countries Channel selection rules need to be defined Minimize interference between BSS Maximize the usage of channels for different applications Huai-Rong Shao, et. al, Samsung Electronics Sameer Vermani, Qualcomm
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July 2012 Problem Statement 902 MHz 928 1 MHz 2 MHz 4 MHz 8 MHz 16 MHz : Channel is being used : Channel not available : Channel available Among 26 MHz totally, only 4 MHz is being used in the above example But neither 8 MHz nor 16 MHz channels available, and only three 4 MHz channel available Slide 5 Huai-Rong Shao, et. al, Samsung Electronics
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July 2012 Problem Statement 902 928 MHz MHz 1 MHz 2 MHz 4 MHz 8 MHz 16 MHz : Channel is being used : Channel not available : Channel available If two 1 MHz channels are allocated to other positions One 16 MHz channel, two 8 MHz channels , and five 4 MHz channels available Slide 6 Huai-Rong Shao, et. al, Samsung Electronics
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Channel selection at BSS setup
November 2009 doc.: IEEE /1234r0doc.: IEEE yy/xxxxr0 doc.: IEEE yy/xxxxr0 July 2012 Channel selection at BSS setup Among all available channels, the new BSS should select a idle channel which can help keep maximum number of idle (available) wider bandwidth channels after it is selected The selected channel has least overlap with other wider bandwidth channels Channel availability is decided by channel scanning results PHY design such as Mask may affect channel availability, for example, interference between adjacent channels Huai-Rong Shao, et. al, Samsung Electronics Sameer Vermani, Qualcomm
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Example of channel selection at BSS setup
November 2009 doc.: IEEE /1234r0doc.: IEEE yy/xxxxr0 doc.: IEEE yy/xxxxr0 July 2012 Example of channel selection at BSS setup If adjacent channels are not treated as available from channel scanning results Choose one from these three if a new 1 MHz BSS needs to be set up 902 MHz 928 MHz 1 MHz 2 MHz 4 MHz 8 MHz 16 MHz : Channel is being used : Channel not preferred due to adjacent channel interference : Channel not available : Channel available Huai-Rong Shao, et. al, Samsung Electronics Sameer Vermani, Qualcomm
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Example of channel selection at BSS setup
November 2009 doc.: IEEE /1234r0doc.: IEEE yy/xxxxr0 doc.: IEEE yy/xxxxr0 July 2012 Example of channel selection at BSS setup If interference between adjacent channels is low Choose one from these two if a new 1 MHz BSS needs to be set up 902 MHz 928 MHz 1 MHz 2 MHz 4 MHz 8 MHz 16 MHz : Channel is being used : Channel not available : Channel available Huai-Rong Shao, et. al, Samsung Electronics Sameer Vermani, Qualcomm
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Conclusion Channel selection rules need to be defined
July 2012 Conclusion Channel selection rules need to be defined Minimize interference between BSS Maximize the usage of channels for different applications Channel selection at BSS setup stage New BSS should select a channel which can help keep maximum number of available wider bandwidth channels Huai-Rong Shao, et. al, Samsung Electronics
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July 2012 Straw Poll Do you support to include the following channel selection rule in the ah specification framework document? Among all available channels, the new BSS should select an idle channel which can help keep maximum number of idle (available) wider bandwidth channels after it is selected (Details TBD). Y N A Huai-Rong Shao, et. al, Samsung Electronics
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