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Doc.: IEEE 802.11-12/1333r0 Submission November 2012 Sameer Vermani, Qualcomm Mandatory Optional PHY Features for 11ah Date: 2012-11-12 Authors: Name AffiliationsAddressPhoneemail.

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Presentation on theme: "Doc.: IEEE 802.11-12/1333r0 Submission November 2012 Sameer Vermani, Qualcomm Mandatory Optional PHY Features for 11ah Date: 2012-11-12 Authors: Name AffiliationsAddressPhoneemail."— Presentation transcript:

1 doc.: IEEE 802.11-12/1333r0 Submission November 2012 Sameer Vermani, Qualcomm Mandatory Optional PHY Features for 11ah Date: 2012-11-12 Authors: Name AffiliationsAddressPhoneemail Sameer VermaniQualcomm svverman@qti.qualcomm.com Bin TianQualcomm VK JonesQualcomm Hongyuan ZhangMarvell Hongyuan@marvell.com Eldad PerahiaIntel Corp. eldad.perahia@intel.com Shahrnaz AziziIntel Corp. shahrnaz.azizi@intel.com Tom TetzlaffIntel Corp. thomas.a.tetzlaff@intel.com Thomas KenneyIntel Corp. thomas.j.kenney@intel.com Sudhir SrinivasaMarvell sudhirs@marvell.com Yong LiuMarvell yongliu@marvell.com Yongho SeokLGE LG R&D Complex Anyang-Shi, Kyungki-Do, Korea +82-31-450-1947yongho.seok@lge.com Jinsoo ChoiLGE Jeongki KimLGE Hangyu ChoLGE Ron PoratBroadcom rporat@broadcom.com Nihar JindalBroadcom Vinko ErcegBroadcom verceg@broadcom.com Jun ZhengBroadcom Slide 1

2 doc.: IEEE 802.11-12/1333r0 Submission November 2012 Sameer Vermani, Qualcomm Authors continued: Name AffiliationsAddressPhoneemail Tao Tian Qualcomm Eugene Baik Qualcomm Lin Yang Qualcomm Hemanth Sampath Qualcomm Richard Van Nee Qualcomm Allert Van Zelst Qualcomm VK Jones Qualcomm Sun, BoZTE sun.bo1@zte.com.cn Lv, KaiyingZTE lv.kaiying@zte.com.cn Huai-Rong ShaoSamsung hr.shao@samsung.com Chiu NgoSamsung chiu.ngo@samsung.com Minho CheongETRI 138 Gajeongno, Yuseong-gu, Dajeon, Korea +82 42 860 5635minho@etri.re.kr Jae Seung LeeETRI jasonlee@etri.re.kr Hyoungjin KwonETRI kwonjin@etri.re.kr Jaewoo ParkETRI parkjw@etri.re.kr Sok-kyu LeeETRI Sk-lee@etri.re.kr Sayantan ChoudhuryNokia 2054 University Avenue, Suite 600, Berkeley, CA 94704 +1 510 599 9268 sayantan.choudhury@nokia.com Klaus DopplerNokia Rojan ChitrakarPanasonic Rojan.Chitrakar@sg.panasonic.com Ken MoriPanasonic mori.ken1@jp.panasonic.com Harya WicaksanaPanasonic Harya.Wicaksana@sg.panason ic.com Slide 2

3 doc.: IEEE 802.11-12/1333r0 Submission November 2012 Sameer Vermani, Qualcomm Authors continued: Slide 3

4 doc.: IEEE 802.11-12/1333r0 Submission Abstract For 11ah, sensor use-case is deemed to be one of the key areas that will drive technology adoption Makes sense for the mandatory features in 11ah to allow for low- cost low-power sensor solutions In this submission –We propose an initial mandatory feature set for 11ah based on above philosophy –Also propose a change to the existing preamble support text in SFD November 2012 Sameer Vermani, QualcommSlide 4

5 doc.: IEEE 802.11-12/1333r0 Submission Proposed features for non-AP STA Following features are critical, yet offer enough scope for simplification in implementations –1MHz and 2MHz channel width –1MHz PPDU, 2MHz PPDU with short preamble –Single spatial stream MCS0 to 2, and MCS10 (for 1MHz PPDU only) –Binary convolutional coding –Normal Guard Interval –Fixed Pilots November 2012 Sameer Vermani, QualcommSlide 5

6 doc.: IEEE 802.11-12/1333r0 Submission Proposed features for AP-STA For AP side, raise the bar slightly to –1MHz and 2MHz channel width –1MHz PPDU, 2MHz PPDU with short preamble –Single spatial stream MCS0 to 7, and MCS10 (for 1MHz PPDU only) –Binary convolutional coding –Normal Guard Interval –Fixed Pilots November 2012 Sameer Vermani, QualcommSlide 6

7 doc.: IEEE 802.11-12/1333r0 Submission Long preamble support Current spec frame work ties the mandatory/optional support of different >=2MHz preambles to device type –Both short and long preambles are mandatory at the AP. –For a STA, If it supports only 1MHz/2MHz, short preamble is mandatory, and long preamble is optional (exchanged by capability fields). Otherwise, both short and long preambles are mandatory. –Any device shall be able to detect and decode SIGA field in the long preamble for CCA We propose to remove the dependency on device type from the preamble support text Reasons on slide 9 November 2012 Sameer Vermani, QualcommSlide 7

8 doc.: IEEE 802.11-12/1333r0 Submission Proposed text preamble support We think the existing preamble support text (given on previous slide) should be changed to the following: –For any device, If it supports only 1MHz/2MHz, short preamble is mandatory, and long preamble is optional (exchanged by capability fields). Otherwise, both short and long preambles are mandatory. –Any device shall be able to detect and decode SIGA field in the long preamble for CCA. November 2012 Sameer Vermani, QualcommSlide 8

9 doc.: IEEE 802.11-12/1333r0 Submission Reasons for removing dependency on device type Initial 11ah solutions might share the chip between AP and STA No reason for a AP (which is 1/2 MHz only capable) optimized for sensor use-case to support long preamble –Long preamble has higher overhead –Long preamble is mainly in the standard for beam-forming and MU Not that relevant for sensors November 2012 Sameer Vermani, QualcommSlide 9

10 doc.: IEEE 802.11-12/1333r0 Submission Pre-motion 1 Do you agree to add the following text at the beginning of Section 3 (S1G Physical Layer) of the SFD ? “An 11ah Non-AP STA shall support: 1MHz and 2MHz channel width 1MHz PPDU, 2MHz PPDU with short preamble Single spatial stream MCS0 to 2, and MCS10 (for 1MHz PPDU only) Binary convolutional coding Normal Guard Interval Fixed Pilots” –Y –N –A November 2012 Sameer Vermani, QualcommSlide 10

11 doc.: IEEE 802.11-12/1333r0 Submission Pre-motion 2 Do you agree to add the following text at the beginning of Section 3 (S1G Physical Layer) of the SFD ? “An 11ah AP STA shall support: 1MHz and 2MHz channel width 1MHz PPDU, 2MHz PPDU with short preamble Single spatial stream MCS0 to 7, and MCS10 (for 1MHz PPDU only) Binary convolutional coding Normal Guard Interval Fixed Pilots ” –Y –N –A November 2012 Sameer Vermani, QualcommSlide 11

12 doc.: IEEE 802.11-12/1333r0 Submission Pre-motion 3 Do you support the change proposed below in the spec frame work document (Red box :existing text, Green box: proposed text) ? –Both short and long preambles are mandatory at the AP. –For a STA, If it supports only 1MHz/2MHz, short preamble is mandatory, and long preamble is optional (exchanged by capability fields). Otherwise, both short and long preambles are mandatory. –Any device shall be able to detect and decode SIGA field in the long preamble for CCA –For any device, If it supports only 1MHz/2MHz, short preamble is mandatory, and long preamble is optional (exchanged by capability fields). Otherwise, both short and long preambles are mandatory. –Any device shall be able to detect and decode SIGA field in the long preamble for CCA. November 2012 Sameer Vermani, QualcommSlide 12

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