Transcript 11-16/0618
May 2016 doc.: IEEE 802.11-16/0618r1 11ax CSD Design Date: 2016-05-16 Authors: Name Affiliation Address Qualcomm 5775 Morehouse Dr. San Diego, CA, USA 5775 Morehouse Dr. San Diego, CA, USA Lin Yang Bin Tian Sameer Vermani Youhan Kim Submission 5775 Morehouse Dr. San Diego, CA, USA 1700 Technology Drive San Jose, CA 95110, USA Slide 1 Phone Email [email protected] [email protected] [email protected] [email protected] Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Authors (continued) Name Affiliation 5775 Morehouse Dr. San Diego, CA, USA Alice Chen Albert Van Zelst Alfred Asterjadhi Carlos Aldana George Cherian Gwendolyn Barriac Hemanth Sampath Lochan Verma Menzo Wentink Naveen Kakani Raja Banerjea Richard Van Nee Rolf De Vegt Simone Merlin Tevfik Yucek VK Jones Submission Address Qualcomm Straatweg 66-S Breukelen, 3621 BR Netherlands 5775 Morehouse Dr. San Diego, CA, USA 1700 Technology Drive San Jose, CA 95110, USA 5775 Morehouse Dr. San Diego, CA, USA 5775 Morehouse Dr. San Diego, CA, USA 5775 Morehouse Dr. San Diego, CA, USA 5775 Morehouse Dr. San Diego, CA, USA Straatweg 66-S Breukelen, 3621 BR Netherlands 2100 Lakeside Boulevard Suite 475, Richardson TX 75082, USA 1060 Rincon Circle San Jose CA 95131, USA Straatweg 66-S Breukelen, 3621 BR Netherlands 1700 Technology Drive San Jose, CA 95110, USA 5775 Morehouse Dr. San Diego, CA, USA 1700 Technology Drive San Jose, CA 95110, USA 1700 Technology Drive San Jose, CA 95110, USA Slide 2 Phone Email [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Authors (continued) Name Affiliation Address Phone Ron Porat Sriram Venkateswaran Matthew Fischer Email [email protected] [email protected] Zhou Lan Leo Montreuil Broadcom Andrew Blanksby Vinko Erceg Thomas Derham Mingyue Ji Robert Stacey [email protected] Shahrnaz Azizi [email protected] Po-Kai Huang [email protected] Qinghua Li Xiaogang Chen Chitto Ghosh Intel 2111 NE 25th Ave, Hillsboro OR 97124, USA [email protected] +1-503-724-893 [email protected] [email protected] Laurent Cariou [email protected] Yaron Alpert [email protected] Assaf Gurevitz [email protected] Ilan Sutskover Feng Jiang [email protected] [email protected] Submission Slide 3 Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Authors (continued) Name Affiliation Address Phone Hongyuan Zhang Email [email protected] Lei Wang [email protected] Liwen Chu [email protected] Jinjing Jiang [email protected] Yan Zhang [email protected] Rui Cao [email protected] Sudhir Srinivasa Marvell Bo Yu 5488 Marvell Lane, Santa Clara, CA, 95054 Saga Tamhane [email protected] 408-222-2500 [email protected] [email protected] Mao Yu [email protected] Xiayu Zheng [email protected] Christian Berger [email protected] Niranjan Grandhe [email protected] Hui-Ling Lou Submission [email protected] Slide 4 Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Authors (continued) Name Affiliation Jianhan Liu Address Phone Email 2860 Junction Ave, San Jose, CA 95134, USA +1-408-526-1899 [email protected] Thomas Pare ChaoChun Wang James Wang [email protected] [email protected] om Mediatek USA [email protected] Tianyu Wu [email protected] Russell Huang [email protected] m James Yee Mediatek No. 1 Dusing 1st Road, Hsinchu, Taiwan +886-3-567-0766 [email protected] Frank Hsu [email protected] Joonsuk Kim [email protected] [email protected] Aon Mujtaba Guoqing Li [email protected] Apple Eric Wong [email protected] Chris Hartman [email protected] Jarkko Kneckt [email protected] Submission Slide 5 May 2016 doc.: IEEE 802.11-16/0618r1 Authors(continued) Name Affiliation David X. Yang Jiayin Zhang Jun Luo Yi Luo Yingpei Lin Jiyong Pang Zhigang Rong Jian Yu Ming Gan Yuchen Guo Yunsong Yang Junghoon Suh Address F1-17, Huawei Base, Bantian, Shenzhen 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai F1-17, Huawei Base, Bantian, Shenzhen 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai 10180 Telesis Court, Suite 365, San Diego, CA 92121 NA F1-17, Huawei Base, Bantian, Shenzhen Huawei F1-17, Huawei Base, Bantian, Shenzhen F1-17, Huawei Base, Bantian, Shenzhen 10180 Telesis Court, Suite 365, San Diego, CA 92121 NA 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada Peter Loc Edward Au Teyan Chen Yunbo Li Submission Phone Email [email protected] +86-18601656691 [email protected] [email protected] +86-18665891036 [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada F1-17, Huawei Base, Bantian, Shenzhen F1-17, Huawei Base, Bantian, Shenzhen Slide 6 [email protected] [email protected] [email protected] Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Authors (continued) Name Affiliation Address Phone Email Jinmin Kim [email protected] Kiseon Ryu [email protected] Jinyoung Chun [email protected] Jinsoo Choi [email protected] Jeongki Kim LG Electronics Dongguk Lim 19, Yangjae-daero 11gil, Seocho-gu, Seoul 137130, Korea [email protected] [email protected] Suhwook Kim [email protected] Eunsung Park [email protected] Jayh hyunhee Park [email protected] HanGyu Cho [email protected] #9 Wuxingduan, Xifeng Rd., Xi'an, China Bo Sun Kaiying Lv Yonggang Fang Ke Yao Weimin Xing Brian Hart Pooya Monajemi Submission [email protected] ZTE Cisco Systems [email protected] [email protected] [email protected] 170 W Tasman Dr, San Jose, CA 95134 Slide 7 [email protected] [email protected] [email protected] Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Authors (continued) Name Affiliation Address Phone Email Samsung Innovation Park, Cambridge CB4 0DS (U.K.) Maetan 3-dong; Yongtong-Gu Suwon; South Korea 1301, E. Lookout Dr, Richardson TX 75070 Innovation Park, Cambridge CB4 0DS (U.K.) 1301, E. Lookout Dr, Richardson TX 75070 Maetan 3-dong; Yongtong-Gu Suwon; South Korea +44 1223 434633 [email protected] +82-31-279-9028 [email protected] (972) 761 7437 [email protected] +44 1223 434600 [email protected] (972) 761 7470 [email protected] +82-10-8864-1751 [email protected] Yasushi Takatori +81 46 859 3135 [email protected] Yasuhiko Inoue +81 46 859 5097 [email protected] +81 46 859 5107 [email protected] +81 46 859 3494 [email protected] Koichi Ishihara +81 46 859 4233 [email protected] Junichi Iwatani +81 46 859 4222 [email protected] +81 46 840 3759 [email protected] Fei Tong Hyunjeong Kang Kaushik Josiam Mark Rison Rakesh Taori Sanghyun Chang Shoko Shinohara NTT Yusuke Asai Akira Yamada Submission NTT DOCOMO 1-1 Hikari-no-oka, Yokosuka, Kanagawa 239-0847 Japan 3-6, Hikarinooka, Yokosukashi, Kanagawa, 239-8536, Japan Slide 8 Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Authors (continued) Name Affiliation Address Phone Email Masahito Mori [email protected] Yusuke Tanaka [email protected] Yuichi Morioka Sony Corp. [email protected] Kazuyuki Sakoda [email protected] William Carney [email protected] Sigurd Schelstraete [email protected] Quantenna Huizhao Wang [email protected] Minho Cheong [email protected] Reza Hedayat [email protected] Young Hoon Kwon Newracom Yongho Seok 9008 Research Dr. Irvine, CA 92618 [email protected] m [email protected] Daewon Lee [email protected] Yujin Noh [email protected] Submission Slide 9 Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Authors (continued) Name Affiliations Narendar Madhavan Masahiro Sekiya Toshihisa Nabetani Tsuguhide Aoki Tomoko Adachi Kentaro Taniguchi Daisuke Taki Koji Horisaki Toshiba Address Phone email [email protected] David Halls Filippo Tosato Zubeir Bocus Fengming Cao Submission Slide 10 Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Introduction • Cyclic Shift Delay (CSD) was introduced since 802.11n – De-couple the same STF signals transmitted on multiple antennas /streams for better Rx AGC setting – Provide diversity in data field and pilot tracking • In this presentation we propose the CSD design for 11ax – Values for per antenna and per stream CSD – Details for CSD application Submission Bin Tian, Qualcomm Slide 11 May 2016 doc.: IEEE 802.11-16/0618r1 Applicability of Per-Stream vs. Per-Antenna CSDs Non-HE Portion HE Portion Pre-HE-modulated fields HE modulated fields Data HE-LTF L-STF L-LTF L-SIG RL-SIG HE-SIG-A HE-SIG-B HE-STF HE-LTF symbol N HE SIG B t 0 t L LTF t L SIG t RL SIG t HE SIG A t HE SIG B t HE STF t HE LTF HE-LTF symbol ……... HE-LTF symbol N HELTF t HE Data Data Symbol ……... Data Symbol N SYM PE t PE • Following 11ac design rational – Per stream CSD • Mandatory for HE modulated fields • Also applicable to pre-HE modulated fields when beam_change=0 (HE SU only) – Per antenna CSD • Mandatory for pre-HE modulated fields when beam_change=1 • Not specified for the HE portion and the pre-HE portion when beam_change=0. Can be applied as part of Q matrix Submission Slide 12 Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Per Stream CSD • Propose to reuse the 11ac per stream CSD values for all HE PPDU – CSD value: [0 -400 -200 -600 -350 -650 -100 -750] ns – Harmonize the CSD values across all the modes – AGC performance difference is minor despite the duration difference between 0.8us STF (11ac and non-triggered 11ax PPDU) and 1.6us HE-STF (triggered PPDU) • For UL MU MIMO transmission, the per stream CSD value is based on global stream index – DL MU MIMO, which inherits from 11ac, already uses global stream index Submission Slide 13 Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Per Antenna CSD for Pre-HE Modulated Fields • When beam_change=1, Pre-HE Modulated Fields are modulated the same way as legacy – Omni transmission along with legacy per antenna CSD – Reuse the legacy per antenna CSD values (shown in appendix) • When beam_change=0, Pre-HE Modulated Fields shall be modulated the same as HE-LTF1 – Per antenna CSD is not specified since its impact is absorbed in the Q matrix Submission Slide 14 Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Per Antenna CSD Application in UL MU Transmission • In UL MU transmission, per antenna CSD application uses the local index – Number of Tx antennas is unknown to other STAs in UL MU transmission – Consistent with other modes, clean spec and implementation Submission Slide 15 Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Straw Poll 1 • Do you agree to add to 11ax SFD 11ax shall reuse the 11ac per stream CSD values for all HE PPDU Submission Slide 16 Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Straw Poll 2 • Do you agree to add to 11ax SFD In UL MU-MIMO transmission the per stream CSD value is based on global stream index Submission Slide 17 Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Straw Poll 3 • Do you agree to add to 11ax SFD 11ax per antenna CSD in Pre HE modulation shall – reuse the 11ac per antenna CSD values when beam change =1 – not be specified (absorbed in the Q matrix) when beam_change=0 Submission Slide 18 Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Straw Poll 4 • Do you agree to add in 11ax SFD In UL MU transmission the per antenna CSD value is based on the antenna index of each STA (i.e. local index) Submission Slide 19 Bin Tian, Qualcomm doc.: IEEE 802.11-16/0618r1 APPENDIX Submission Slide 20 Bin Tian, Qualcomm May 2016 doc.: IEEE 802.11-16/0618r1 Legacy Per Antenna CSD i TX TCS * Cyclic shift values for L-STF, L-LTF, L-SIG, and VHT-SIG-A fields of the PPDU(11ac) values for L-STF, L-LTF, L-SIG, and VHT-SIG-A fields of the PPDU Cyclic shift for transmit chain iTX (in units of ns) Total number of transmit chains (NTX) per frequency segment(#3180) Submission 1 2 3 4 5 6 7 8 >8 1 0 – – – – – – – – 2 0 –200 – – – – – – – 3 0 –100 –200 – – – – – – 4 0 –50 –100 –150 – – – – – 5 0 –175 –25 –50 –75 – – – – 6 0 –200 –25 –150 –175 –125 – – – 7 0 –200 –150 –25 –175 –75 –50 – – 8 0 –175 –150 –125 –25 –100 –50 –200 – >8 0 –175 –150 –125 –25 –100 –50 –200 Between –200 and 0 inclusive Slide 21 Bin Tian, Qualcomm