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Doc.: IEEE 802.11-15/1353r1 Submission Preamble Formats Slide 1 Date: 2015-11-10 Authors: Robert Stacey Intel 2111 NE 25th Ave, Hillsboro OR 97124, USA.

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Presentation on theme: "Doc.: IEEE 802.11-15/1353r1 Submission Preamble Formats Slide 1 Date: 2015-11-10 Authors: Robert Stacey Intel 2111 NE 25th Ave, Hillsboro OR 97124, USA."— Presentation transcript:

1 doc.: IEEE 802.11-15/1353r1 Submission Preamble Formats Slide 1 Date: 2015-11-10 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 NameAffiliation AddressPhoneEmail Ron Porat Broadcom rporat@broadcom.com Sriram Venkateswaran mfischer@broadcom.com Matthew Fischer Leo Montreuil Andrew Blanksby Vinko Erceg November 2015 Ron Porat, Broadcom

2 doc.: IEEE 802.11-15/1353r1 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 November 2015 Ron Porat, Broadcom

3 doc.: IEEE 802.11-15/1353r1 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 November 2015 Ron Porat, Broadcom

4 doc.: IEEE 802.11-15/1353r1 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 November 2015 Ron Porat, Broadcom

5 doc.: IEEE 802.11-15/1353r1 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 November 2015 Ron Porat, Broadcom

6 doc.: IEEE 802.11-15/1353r1 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 November 2015 Ron Porat, Broadcom

7 doc.: IEEE 802.11-15/1353r1 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 November 2015 Ron Porat, Broadcom

8 doc.: IEEE 802.11-15/1353r1 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 November 2015 Ron Porat, Broadcom

9 doc.: IEEE 802.11-15/1353r1 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 November 2015 Ron Porat, Broadcom

10 doc.: IEEE 802.11-15/1353r1 Submission Introduction There are currently several preamble combinations defined in 11ax with several details missing –SU format (without SIGB) –MU format (with SIGB) –Trigger based UL –Repetition mode SIGA for which the presence or absence of SIGB is undefined. –Two LTF options –Three CP options for payload –SIGB without CP definition This presentation aims to further define several missing details and several mandatory formats to minimize the required implementation complexity November, 2015 Slide 10Ron Porat, Broadcom

11 doc.: IEEE 802.11-15/1353r1 Submission SU and MU Formats Currently two types of preambles (SU format and MU format) are defined with differentiation on whether SIGB is transmitted or not While the MU format carries the most general OFDMA + MU-MIMO packets, the SU format provides efficiency for single user transmissions Both preambles can be used by any device for transmission in the UL, DL or peer to peer. Both preambles are essential for 11ax and we therefore propose that both of them shall be mandatory November, 2015 Slide 11Ron Porat, Broadcom

12 doc.: IEEE 802.11-15/1353r1 Submission Repetition Mode SIGA This mode is primarily used for range extension for rates lower than MCS0 over 20MHz It therefore makes less sense to carry the full flexibility of OFDMA+MU-MIMO in this mode as the rates for those users will become even lower In addition, supporting two different modes for the repetition SIGA requires more complex signaling to differentiate all preamble formats. We therefore propose to limit the repetition mode preamble to SU (single user) and define it as the extended range SU format. November, 2015 Slide 12Ron Porat, Broadcom

13 doc.: IEEE 802.11-15/1353r1 Submission Summary of Preamble Formats Recall that the trigger based UL format is identical to the SU format up to and including SIGA. The difference appears only during the HE-STF field and therefore SIGA carries a format bit to differentiate those two preambles In summary, we have the following three pre-HE-STF preamble formats: –SU format (mandatory) / Trigger based UL –MU format (mandatory) –Extended range SU format November, 2015 Slide 13Ron Porat, Broadcom

14 doc.: IEEE 802.11-15/1353r1 Submission Signaling of the Three Preamble Formats Three preamble formats require effectively two bits for signaling. The two most natural candidates are: LSIG length - the spec framework already states “In L-SIG, the L_LENGTH field is set to a value not divisible by 3. The value of L_LENGTH mod 3 will be used for signalling of one bit of TBD information” Rotation on the second symbol of SIGA, denoted as SIGA2 – rotation is used extensively throughout.11 to differentiate different preambles We propose that the value of LSIG length shall be used to signal the SU format. This enables the receiver to know ahead of time that HE-STF immediately follows HE-SIGA so that its AGC can fully utilize the short HE-STF field. We further then propose that BPSK rotation on SIGA2 is used to classify between the MU format and the extended range SU format November, 2015 Slide 14Ron Porat, Broadcom

15 doc.: IEEE 802.11-15/1353r1 Submission Cont. – Signaling Diagram LSIG length set as mod3=1 means SU format. Set as mod3=2 means either MU format or extended range SU format QBPSK on HE-SIGA2 means extended range SU format November, 2015 Slide 15Ron Porat, Broadcom L-SIG/ R-L-SIG HE-SIG- A1 HE- STF Length field indicates SU format (set as mod3 =1) HE-SIG- A2 HE- STF HE-SIG-B L-SIG/ R-L-SIG HE-SIG- A1 HE- STF HE-SIG- A2 HE-SIG- A3 HE-SIG- A4 L-SIG/ R-L-SIG HE-SIG- A1 HE-SIG- A2 (a) (b) (c) SIGA2 BPSK indicates MU format SIGA2 QBPSK indicates extended range SU format

16 doc.: IEEE 802.11-15/1353r1 Submission LTF and CP Combinations Currently there are 6 combinatorial options (2 LTF sizes and 3 CP sizes). However not all combinations are equally important. We propose to define the following 3 combinations as mandatory due to their importance for fulfilling 11ax requirements: –2x LTF + 0.8uS  best choice for efficiency –2x LTF + 1.6uS  all around best choice suitable for indoor, outdoor and indoor UL MU- MIMO/OFDMA (where larger CP is required to accommodate users’ difference time of arrival) –4x LTF + 3.2uS  optimized for UMi-NLOS supporting UL OFDMA in that channel as well. To simplify and minimize signaling we further propose that the same value of CP is used for payload and HE-LTF. CP for SIGB – SIGB is an extension of SIGA with structure very similar to SIGA –Recall that SIGB is defined as blocks that are separately encoded and CRCed having roughly the same size as SIGA. Since SIGA uses only 0.8uS CP it makes sense to also limit the choices for SIGB to 0.8uS only November, 2015 Slide 16Ron Porat, Broadcom

17 doc.: IEEE 802.11-15/1353r1 Submission References [1] 11-15-0821-00-00ax HE-SIG-B Structure [2] 11-15-0873-00-00ax SIG B Encoding Structure November, 2015 Slide 17Ron Porat, Broadcom

18 doc.: IEEE 802.11-15/1353r1 Submission SP #1 Do you agree to add to the TG Specification Frame work document: there are only three pre-HE-STF preamble formats defined as: –SU format (mandatory) / Trigger based UL –MU format (mandatory) –Extended range SU format Yes No Abs November, 2015 Slide 18Ron Porat, Broadcom

19 doc.: IEEE 802.11-15/1353r1 Submission SP #2 Do you agree to add to the TG Specification Frame work document the signaling of the three preamble formats as described on slide 15? Yes No Abs November, 2015 Slide 19Ron Porat, Broadcom

20 doc.: IEEE 802.11-15/1353r1 Submission SP #3 Do you agree to add to the TG Specification Frame work document: the following are the only mandatory combinations of LTF size and CP size 2x LTF+ 0.8uS 2x LTF+ 1.6uS 4x LTF+ 3.2uS with HE-LTF and payload using the same CP size. and that LTF size and CP size are jointly signaled using 3 bits. Yes No Abs November, 2015 Slide 20Ron Porat, Broadcom

21 doc.: IEEE 802.11-15/1353r1 Submission SP #4 Do you agree to add to the TG Specification Frame work document: SIGB only has one CP size equal to 0.8uS Yes No Abs November, 2015 Slide 21Ron Porat, Broadcom

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