1. doc.: IEEE 802.11-15/1354r2 Submission SIG-A Fields and Bitwidths Slide 1 Date: 2016-03-13 Authors: Robert Stacey Intel 2111 NE 25th Ave, Hillsboro OR 97124, USA +1-503-724-893 robert.stacey@intel.com Shahrnaz Azizi shahrnaz.azizi@intel.com Po-Kai Huang po-kai.huang@intel.com Qinghua Li quinghua.li@intel.com Xiaogang Chen xiaogang.c.chen@intel.com Chitto Ghosh chittabrata.ghosh@intel.com Laurent Cariou laurent.cariou@intel.com Yaron Alpert yaron.alpert@intel.com Assaf Gurevitz assaf.gurevitz@intel.com Ilan Sutskover ilan.sutskover@intel.com March 2016 Ron Porat, Broadcom NameAffiliationAddressPhoneEmail Ron Porat Broadcom rporat@broadcom.com Sriram Venkateswaranmfischer@broadcom.com Mingyue Ji Matthew Fischer Leo Montreuil Andrew Blanksby Vinko Erceg

2. doc.: IEEE 802.11-15/1354r2 Submission Slide 2 Authors (continued) NameAffiliationAddressPhoneEmail Hongyuan Zhang Marvell 5488 Marvell Lane, Santa Clara, CA, 95054 408-222-2500 hongyuan@marvell.com Yakun Sun yakunsun@marvell.com Lei Wang Leileiw@marvell.com Liwen Chu liwenchu@marvell.com Jinjing Jiang jinjing@marvell.com Yan Zhang yzhang@marvell.com Rui Cao ruicao@marvell.com Sudhir Srinivasa sudhirs@marvell.com Bo Yu boyu@marvell.com Saga Tamhane sagar@marvell.com Mao Yu my@marvel..com Xiayu Zheng xzheng@marvell.com Christian Berger crberger@marvell.com Niranjan Grandhe ngrandhe@marvell.com Hui-Ling Lou hlou@marvell.com March 2016 Ron Porat, Broadcom

3. doc.: IEEE 802.11-15/1354r2 Submission Slide 3 Authors (continued) NameAffiliationAddressPhoneEmail Alice Chen Qualcomm 5775 Morehouse Dr. San Diego, CA, USA alicel@qti.qualcomm.com Albert Van Zelst Straatweg 66-S Breukelen, 3621 BR Netherlands allert@qti.qualcomm.com Alfred Asterjadhi 5775 Morehouse Dr. San Diego, CA, USA aasterja@qti.qualcomm.com Arjun Bharadwaj 5775 Morehouse Dr. San Diego, CA, USA arjunb@qti.qualcomm.com Bin Tian 5775 Morehouse Dr. San Diego, CA, USA btian@qti.qualcomm.com Carlos Aldana 1700 Technology Drive San Jose, CA 95110, USA caldana@qca.qualcomm.com George Cherian 5775 Morehouse Dr. San Diego, CA, USA gcherian@qti.qualcomm.com Gwendolyn Barriac 5775 Morehouse Dr. San Diego, CA, USA gbarriac@qti.qualcomm.com Hemanth Sampath 5775 Morehouse Dr. San Diego, CA, USA hsampath@qti.qualcomm.com Lin Yang 5775 Morehouse Dr. San Diego, CA, USA linyang@qti.qualcomm.com Menzo Wentink Straatweg 66-S Breukelen, 3621 BR Netherlands mwentink@qti.qualcomm.com Naveen Kakani 2100 Lakeside Boulevard Suite 475, Richardson TX 75082, USA nkakani@qti.qualcomm.com Raja Banerjea 1060 Rincon Circle San Jose CA 95131, USA rajab@qit.qualcomm.com Richard Van Nee Straatweg 66-S Breukelen, 3621 BR Netherlands rvannee@qti.qualcomm.com March 2016 Ron Porat, Broadcom

4. doc.: IEEE 802.11-15/1354r2 Submission Slide 4 Authors (continued) NameAffiliationAddressPhoneEmail Rolf De Vegt Qualcomm 1700 Technology Drive San Jose, CA 95110, USA rolfv@qca.qualcomm.com Sameer Vermani 5775 Morehouse Dr. San Diego, CA, USA svverman@qti.qualcomm.com Simone Merlin 5775 Morehouse Dr. San Diego, CA, USA smerlin@qti.qualcomm.com Tao Tian 5775 Morehouse Dr. San Diego, CA, USA ttian@qti.qualcomm.com Tevfik Yucek 1700 Technology Drive San Jose, CA 95110, USA tyucek@qca.qualcomm.com VK Jones 1700 Technology Drive San Jose, CA 95110, USA vkjones@qca.qualcomm.com Youhan Kim 1700 Technology Drive San Jose, CA 95110, USA youhank@qca.qualcomm.com March 2016 Ron Porat, Broadcom

5. doc.: IEEE 802.11-15/1354r2 Submission Slide 5 Authors (continued) Joonsuk Kim Apple joonsuk@apple.com Aon Mujtaba mujtaba@apple.com Guoqing Li guoqing_li@apple.com Eric Wong ericwong@apple.com Chris Hartmanchartman@apple.com NameAffiliationAddressPhoneEmail James Yee Mediatek No. 1 Dusing 1 st Road, Hsinchu, Taiwan +886-3-567-0766 james.yee@mediatek.com Alan Jauh alan.jauh@mediatek.com Chingwa Hu chinghwa.yu@mediatek.co m Frank Hsu frank.hsu@mediatek.com Thomas Pare Mediatek USA 2860 Junction Ave, San Jose, CA 95134, USA +1-408-526-1899 thomas.pare@mediatek.com ChaoChun Wang chaochun.wang@mediatek.c om James Wang james.wang@mediatek.com Jianhan Liu Jianhan.Liu@mediatek.com Tianyu Wu tianyu.wu@mediatek.com Zhou Lan Zhou.lan@mediaTek.com Russell Huang russell.huang@mediatek.co m March 2016 Ron Porat, Broadcom

6. doc.: IEEE 802.11-15/1354r2 Submission Slide 6 Authors (continued) NameAffiliationAddressPhoneEmail Peter Loc Huawei peterloc@iwirelesstech.com Le Liu F1-17, Huawei Base, Bantian, Shenzhen +86-18601656691 liule@huawei.com Jun Luo 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai jun.l@huawei.com Yi Luo F1-17, Huawei Base, Bantian, Shenzhen +86-18665891036 Roy.luoyi@huawei.com Yingpei Lin 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai linyingpei@huawei.com Jiyong Pang 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai pangjiyong@huawei.com Zhigang Rong 10180 Telesis Court, Suite 365, San Diego, CA 92121 NA zhigang.rong@huawei.com Rob Sun 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada Rob.Sun@huawei.com David X. Yang F1-17, Huawei Base, Bantian, Shenzhen david.yangxun@huawei.com Yunsong Yang 10180 Telesis Court, Suite 365, San Diego, CA 92121 NA yangyunsong@huawei.com Junghoon Suh 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada Junghoon.Suh@huawei.com Jiayin Zhang 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai +86-18601656691 zhangjiayin@huawei.com Edward Au 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada edward.ks.au@huawei.com Teyan Chen F1-17, Huawei Base, Bantian, Shenzhen chenteyan@huawei.com Yunbo Li F1-17, Huawei Base, Bantian, Shenzhen liyunbo@huawei.com March 2016 Ron Porat, Broadcom

7. doc.: IEEE 802.11-15/1354r2 Submission Slide 7 Authors (continued) NameAffiliationAddressPhoneEmail Jinmin Kim LG Electronics 19, Yangjae-daero 11gil, Seocho-gu, Seoul 137- 130, Korea Jinmin1230.kim@lge.com Kiseon Ryu kiseon.ryu@lge.com Jinyoung Chun jiny.chun@lge.com Jinsoo Choi js.choi@lge.com Jeongki Kim jeongki.kim@lge.com Dongguk Lim dongguk.lim@lge.com Suhwook Kim suhwook.kim@lge.com Eunsung Park esung.park@lge.com JayH Park Hyunh.park@lge.com HanGyu Cho hg.cho@lge.com Thomas DerhamOrange thomas.derham@orange.com Bo Sun ZTE #9 Wuxingduan, Xifeng Rd., Xi'an, China sun.bo1@zte.com.cn Kaiying Lv lv.kaiying@zte.com.cn Yonggang Fang yfang@ztetx.com Ke Yao yao.ke5@zte.com.cn Weimin Xing xing.weimin@zte.com.cn Brian Hart Cisco Systems 170 W Tasman Dr, San Jose, CA 95134 brianh@cisco.com Pooya Monajemi pmonajem@cisco.com March 2016 Ron Porat, Broadcom

8. doc.: IEEE 802.11-15/1354r2 Submission Slide 8 Authors (continued) NameAffiliationAddressPhoneEmail Fei Tong Samsung Innovation Park, Cambridge CB4 0DS (U.K.) +44 1223 434633 f.tong@samsung.com Hyunjeong Kang Maetan 3-dong; Yongtong-Gu Suwon; South Korea +82-31-279-9028 hyunjeong.kang@samsung.com Kaushik Josiam 1301, E. Lookout Dr, Richardson TX 75070 (972) 761 7437 k.josiam@samsung.com Mark Rison Innovation Park, Cambridge CB4 0DS (U.K.) +44 1223 434600 m.rison@samsung.com Rakesh Taori 1301, E. Lookout Dr, Richardson TX 75070 (972) 761 7470 rakesh.taori@samsung.com Sanghyun Chang Maetan 3-dong; Yongtong-Gu Suwon; South Korea +82-10-8864-1751 s29.chang@samsung.com Yasushi Takatori NTT 1-1 Hikari-no-oka, Yokosuka, Kanagawa 239-0847 Japan takatori.yasushi@lab.ntt.co.jp Yasuhiko Inoue inoue.yasuhiko@lab.ntt.co.jp Shoko Shinohara Shinohara.shoko@lab.ntt.co.jp Yusuke Asai asai.yusuke@lab.ntt.co.jp Koichi Ishihara ishihara.koichi@lab.ntt.co.jp Junichi Iwatani Iwatani.junichi@lab.ntt.co.jp Akira Yamada NTT DOCOMO 3-6, Hikarinooka, Yokosuka- shi, Kanagawa, 239-8536, Japan yamadaakira@nttdocomo.com Fujio Watanabe 3240 Hillview Ave, Palo Alto, CA 94304 watanabe@docomoinnovations. com Haralabos Papadopoulos hpapadopoulos@docomoinnova tions.com March 2016 Ron Porat, Broadcom

9. doc.: IEEE 802.11-15/1354r2 Submission Slide 9 Authors (continued) NameAffiliationAddressPhoneEmail Masahito Mori Sony Corp. Masahito.Mori@jp.sony.com Yusuke TanakaYusukeC.Tanaka@jp.sony.com Yuichi MoriokaYuichi.Morioka@jp.sony.com Kazuyuki SakodaKazuyuki.Sakoda@am.sony.com William CarneyWilliam.Carney@am.sony.com March 2016 Ron Porat, Broadcom

10. doc.: IEEE 802.11-15/1354r2 Submission Introduction Revision 1 of this document summarized and organized SIG fields in tables for SU, MU and trigger based UL. In this revision, revision 2, we add several more fields, namely: –Doppler –STBC for MU –Spatial reuse fields for trigger based UL Slide 10Ron Porat, Broadcom March 2016

11. doc.: IEEE 802.11-15/1354r2 Submission SIG-A Table for the SU Preamble Format Slide 11Ron Porat, Broadcom Field#Bits DL/UL1 Format Indication1 BSS Color6 Spatial ReuseTBD TXOP durationTBD Bandwidth2 MCS4 CP+LTF size3 Coding2 Nsts3 STBC1 TxBF1 DCM1 Packet Extension3 Beam change1 CRC4 Tail6 Brief explanation Format indication: distinguish between SU and trigger based UL [1] BSS Color: Base station identifier [2] Spatial reuse: Exact bits TBD e.g. indicaation of CCA Level, Interference Level accepted, TX Power TXOP Duration: [1] CP + LTF Size: [3] DCM: Dual carrier modulation indication [2] Packet extension: “a”-factor field of 2 bits and 1 disambiguation bit [2] Beam change: Indicate precoder change/no change between L-LTF and HE-LTF [4] March 2016

12. doc.: IEEE 802.11-15/1354r2 Submission SIG-A Table for the MU Preamble Format Slide 12Ron Porat, Broadcom Field#Bits DL/UL1 BSS Color6 Spatial ReuseTBD TXOP durationTBD Bandwidth>=2 SIGB MCS3 SIGB DCM1 SIGB # of symbols4 SIGB Compression Mode >=1 # of HE-LTF3 CP+LTF size3 LDPC extra symbol1 Packet Extension3 CRC4 Tail6 Brief explanation Refer to previous slide for explanation on bits similar to the SU format SIGB Modulation: [5] #SIGB symbols: <= 16 (4 bits)  support about 16 users using MCS0 per BCC Compression mode: Differentiates full bandwidth MU-MIMO from OFDMA MU PPDU [6]. More compression modes TBD #LTFs: Up to 8 LTFs possible → 3 bits LDPC extra symbol: [2] BW field may accommodate more than in SU case to take advantage of OFDMA March 2016

13. doc.: IEEE 802.11-15/1354r2 Submission SIG-A Table for the Trigger based UL Preamble Format Slide 13Ron Porat, Broadcom Field#Bits Format1 BSS Color6 TXOPTBD Spatial reuseTBD BandwidthTBD CRC4 Tail6 Brief explanation Format indication: distinguish between SU and UL MU PPDUs [1] BSS Color: Base station identifier [2] Spatial reuse: Exact bits TBD but examples given in Appendix → CCA Level, Interference Level, TX Power TXOP Duration: [1] March 2016

14. doc.: IEEE 802.11-15/1354r2 Submission Doppler Bit Similar to 11ah, 11ax is also targeting outdoor. We propose to add one bit to indicate a PPDU with enhanced immunity to Doppler. The exact design is TBD but could use e.g. the travelling pilots concept as defined in 11ah with appropriate modifications for 11ax. For SU the natural signaling place is SIGA whereas for MU signaling could take place in SIGA or SIGB Also, in order to support the same feature in trigger based UL MU we propose to add a Doppler bit to the trigger frame Slide 14Ron Porat, Broadcom March 2016

15. doc.: IEEE 802.11-15/1354r2 Submission STBC Bit STBC bit currently included in the SIGA for SU but not in SIGA or SIGB for MU. As previously motioned before, in a MU PPDU all RUs are either STBC or not STBC, hence it makes sense to add this bit in SIGA of the MU PPDU as well Slide 15Ron Porat, Broadcom March 2016

16. doc.: IEEE 802.11-15/1354r2 Submission Spatial Reuse in Trigger Based UL Spatial Reuse field has been included in SIGA for all preamble formats. Exact bits TBD e.g. indication of CCA Level, Interference Level accepted. Recall that in trigger based UL all information in SIGA is copied from the trigger frame, is identical for all STA, and is fully controlled by the AP who is also the recipient of the UL MU packet. Hence, it makes sense to allow the AP increased flexibility, namely allow it to provide different SR values for different subbands. The underlying logic is that one subband may carry highly efficient PPDU, e.g. 4 spatial streams in UL MU-MIMO, in which case the AP may want to limit the OBSS SR opportunity, whereas another subband may carry less efficient PPDU, e.g. UL OFDMA with MCS0, in which case by enabling increased OBSS SR opportunity the AP enables better spatial reuse and overall increases area throughput The number and size of the subbands is TBD, e.g. 20MHz subbands Note that currently over 30bits are available for use in SIGA of an UL Trig based PPDU Slide 16Ron Porat, Broadcom March 2016

17. doc.: IEEE 802.11-15/1354r2 Submission Strawpoll 1 Slide 17Ron Porat, Broadcom Do you agree to add a Doppler bit in SIGA for HE SU and HE SU extended range, in TBD location for HE MU and in the trigger frame Yes No Abs March 2016

18. doc.: IEEE 802.11-15/1354r2 Submission Strawpoll 2 Slide 18Ron Porat, Broadcom Do you agree to add to the spec framework : 1bit is added for STBC indication in SIGA of the MU PPDU? This bit indicates STBC for all users in the payload and doesn’t apply to SIGB STBC is not applied in MU-MIMO RUs Yes No Abs March 2016

19. doc.: IEEE 802.11-15/1354r2 Submission Strawpoll 3 Slide 19Ron Porat, Broadcom Do you agree to add to the TG Specification Frame work document: in trigger based UL PPDUs, multiple SR fields (>=2) are signaled, where each SR field corresponds to a different subband of the PPDU Yes No Abs March 2016