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Proposed US Channelization for IEEE 802.11ah

Proposed US Channelization for IEEE 802.11ah. Date: January 17 , 20 12. Authors:. Background. This submission proposes a comprehensive compromise for US channelization to accommodate 1MHz channels.

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Proposed US Channelization for IEEE 802.11ah

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  1. Proposed US Channelization forIEEE 802.11ah Date: January 17, 2012 Authors:

  2. Background • This submission proposes a comprehensive compromise for US channelization to accommodate 1MHz channels. • Numerous proposals have been contributed that suggest different channelization for US 902~928MHz. • The TGah group was somewhat positive about MediaTek’s contribution (DCN1571r1), which utilizes the 1MHz channels from 902 MHz to 912MHz.

  3. Motivation Proposed channelization would increase the simplicity of the 802.11ah standard by enabling each possible usecase at same portion of frequency band. Allocating 918~928MHz to 1MHz Channels would be attractive for a harmonization to enhance the global commonality. Singapore, Korea, Japan have their 1MHz channels starting from >916MHz Slide 3

  4. Proposal

  5. Proposed US Channelization 902 MHz 918 MHz 928 MHz Proposed T.B.D. (Usage of 1MHz Channel) Ch1 Ch10 1 MHz 1 2 3 4 5 6 7 8 9 10 11 12 13 2 MHz 1 2 3 4 5 6 4 MHz 1 2 3 8 MHz 1 16 MHz T.B.D. (e.g. Either or Both MCS0-rep2 1MHz MCS0 2MHz Beacon) MCS0-rep2-1MHz Beacon Slide 5

  6. Straw poll • Do you agree … • IEEE802.11ah Task Group allocates 1MHz bandwidth channels side by side from 918MHz up to 928MHz for US 902~928MHz ISM band. • Yes • No • Abstain

  7. Backup slides

  8. Singapore: Japan: 1 MHz 2 MHz Korea: 902MHz 4 MHz 928MHz 927.5MHz 916.5MHz Ch 1 Ch 1 Ch 10 Ch 11 Ch 1 Ch 5 925MHz 920MHz 923.5 MHz 917.5 MHz 1 MHz 1 MHz 1 MHz 1 2 3 4 5 6 7 8 9 10 11 12 13 2 MHz 1 2 3 4 5 6 4 MHz 1 2 3 8 MHz 918MHz 1 16 MHz US: Slide 8

  9. References [1] DCN 1329r1, “Motions and Strawpoll on Channelization for 11ah ”, 2011-9-21 [2] DCN 1535r0, “US Channelization”, 2011-11-07 [3] DCN 1571r1, “US Channelization and Bandwidth Considerations for 802.11ah”, 2011-11-10 [4] DCN 1516r0, “802.11ah Channelization Proposal for US”, 2011-11-07 [5] DCN 1318r0, “Japanese Channelization for 802.11ah ”, 2011-9-21 [6] DCN 1133r0, “Singapore Sub 1GHz Frequency Bands for IEEE 802.11ah ”, 2011-8-11 [7] DCN 1422r0, “11ah Channelization of Korea”, November 7, 2011

  10. Background • Indoor coverage of 1MHz BSS over 2MHz BSS. • Assumption: Distance exponent of Path Loss=36.7, Sensitivity improvement=6dB • Outdoor coverage of 1MHz BSS over 2MHz BSS. • Assumption: Distance exponent of Path Loss=37.6, Sensitivity improvement=6dB Battery current constrained maximum Tx Power PTx subcarrier@1MHzBSS/PTx subcarrier@2MHzBSS=3dB (i.e. power per sub-carrier) R Area2/Area1=1.1 Area1,Covered by MCS0,2MHz Area2,Covered by MCS0-Rep2,1MHz 1.45 R Area2/Area1=2.0 R Area1,Covered by MCS0,2MHz Area2,Covered by MCS0-Rep2,1MHz 1.74 R Slide 10

  11. End Slide 11

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