Transcript 11-16/0395
Mar 2016 802.11-16/0395r2 Preamble transmission for Uplink OFDMA Date: 2016-03-12 Authors: Name Affiliation David X. Yang Jiayin Zhang Jun Luo Yi Luo Yingpei Lin Jiyong Pang Zhigang Rong Jian Yu Huawei Address Phone 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 Email [email protected] +86-18601656691 [email protected] [email protected] +86-18665891036 [email protected] [email protected] [email protected] [email protected] [email protected] Ming Gan F1-17, Huawei Base, Bantian, Shenzhen [email protected] Yunsong Yang 10180 Telesis Court, Suite 365, San Diego, CA 92121 NA [email protected] Dengyu Qiao Junghoon Suh [email protected] 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada Peter Loc Submission [email protected] [email protected] Slide 1 David Xun Yang et al. (Huawei) Mar 2016 802.11-16/0395r2 Authors (continued) Name Affiliation Address Huawei 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada F1-17, Huawei Base, Bantian, Shenzhen F1-17, Huawei Base, Bantian, Shenzhen Edward Au Teyan Chen Yunbo Li Ron Porat Phone Email [email protected] [email protected] [email protected] [email protected] Sriram Venkateswaran Matthew Fischer Zhou Lan [email protected] Broadcom Leo Montreuil Andrew Blanksby Vinko Erceg Submission Slide 2 David Xun Yang et al. (Huawei) Mar 2016 802.11-16/0395r2 Authors (continued) Name Affiliation Address Phone Email Robert Stacey [email protected] Shahrnaz Azizi [email protected] Po-Kai Huang [email protected] Qinghua Li Xiaogang Chen Intel 2111 NE 25th Ave, Hillsboro OR 97124, USA [email protected] +1-503-724-893 [email protected] Chitto Ghosh [email protected] Laurent Cariou [email protected] Yaron Alpert [email protected] Assaf Gurevitz [email protected] Ilan Sutskover [email protected] Submission Slide 3 Mar 2016 802.11-16/0395r2 Authors (continued) Name Affiliation Address Phone Email Hongyuan Zhang [email protected] Yakun Sun [email protected] Lei Wang [email protected] Liwen Chu [email protected] Jinjing Jiang [email protected] Yan Zhang [email protected] Rui Cao Sudhir Srinivasa Bo Yu Marvell 5488 Marvell Lane, Santa Clara, CA, 95054 Saga Tamhane [email protected] 408-222-2500 [email protected] [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 Mar 2016 802.11-16/0395r2 Authors (continued) Name Affiliation 5775 Morehouse Dr. San Diego, CA, USA Alice Chen Straatweg 66-S Breukelen, 3621 BR Netherlands 5775 Morehouse Dr. San Diego, CA, USA Albert Van Zelst Alfred Asterjadhi 5775 Morehouse Dr. San Diego, CA, USA Arjun Bharadwaj Bin Tian Carlos Aldana George Cherian Gwendolyn Barriac Hemanth Sampath Lin Yang Menzo Wentink Naveen Kakani Raja Banerjea Richard Van Nee Submission Address Qualcomm 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 Slide 5 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] Mar 2016 802.11-16/0395r2 Authors (continued) Name Affiliation Rolf De Vegt Sameer Vermani Simone Merlin Tao Tian Tevfik Yucek VK Jones Youhan Kim Submission Qualcomm Address Phone Email 1700 Technology Drive San Jose, CA 95110, USA 5775 Morehouse Dr. San Diego, CA, USA 5775 Morehouse Dr. San Diego, CA, USA [email protected] 5775 Morehouse Dr. San Diego, CA, USA [email protected] 1700 Technology Drive San Jose, CA 95110, USA 1700 Technology Drive San Jose, CA 95110, USA 1700 Technology Drive San Jose, CA 95110, USA Slide 6 [email protected] [email protected] [email protected] [email protected] [email protected] Mar 2016 802.11-16/0395r2 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 No. 1 Dusing 1st Road, Hsinchu, Taiwan James Yee Alan Jauh Mediatek [email protected] [email protected] Frank Hsu [email protected] Joonsuk Kim [email protected] [email protected] Aon Mujtaba Guoqing Li +886-3-567-0766 Apple [email protected] Eric Wong [email protected] Chris Hartman [email protected] Submission Slide 7 Mar 2016 802.11-16/0395r2 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 Park [email protected] HanGyu Cho [email protected] Thomas Derham Orange #9 Wuxingduan, Xifeng Rd., Xi'an, China Bo Sun Kaiying Lv Yonggang Fang Ke Yao Weimin Xing Brian Hart Pooya Monajemi Submission [email protected] [email protected] ZTE Cisco Systems [email protected] [email protected] [email protected] 170 W Tasman Dr, San Jose, CA 95134 Slide 8 [email protected] [email protected] [email protected] Mar 2016 802.11-16/0395r2 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 9 Mar 2016 802.11-16/0395r2 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] Tomoko Adachi [email protected] Narendar Madhavan [email protected] Kentaro Taniguchi [email protected] Toshihisa Nabetani [email protected] Tsuguhide Aoki Koji Horisaki [email protected] Toshiba [email protected] David Halls [email protected] Filippo Tosato [email protected] Zubeir Bocus [email protected] Fengming Cao [email protected] Parag Kulkarni [email protected] Submission Slide 10 Mar 2016 802.11-16/0395r2 Authors (continued) 9008 Research Dr, Irvine, CA 92618 Minho Cheong +1-949-390-7146 [email protected] Reza Hedayat [email protected] Young Hoon Kwon [email protected] Newracom, Inc. Yongho Seok [email protected] Daewon Lee [email protected] Yujin Noh [email protected] Sigurd Schelstraete [email protected] Quantenna Huizhao Wang Submission [email protected] Slide 11 Mar 2016 802.11-16/0395r2 Background • • An HE PPDU shall include the legacy preamble (L-STF, L-LTF and LSIG), duplicated on each 20 MHz, for backward compatibility with legacy devices. (PHY Motion #3, January 2015, see [2] of [1]) HE-SIG-A (using a DFT period of 3.2 µs and subcarrier spacing of 312.5 kHz) is duplicated on each 20 MHz after the legacy preamble to indicate common control information. (Motion #4, January 2015, see [2] of [1]) Legacy Preamble RL-SIG HE-SIG-A Legacy Preamble RL-SIG HE-SIG-A … Legacy Preamble RL-SIG HE-SIG-A Legacy Preamble RL-SIG HE-SIG-A It is straightforward for DL and SU transmission. However, UL triggerbased MU transmission, especially UL OFDMA is not fully discussed. Submission Slide 12 David Xun Yang et al. (Huawei) Mar 2016 802.11-16/0395r2 Preamble for UL OFMDA (1/2) • Uplink preamble from each STA is used for – – • Protection from the OBSS interference of the hidden node Consuming time for CFO settling due to LO drifting In case of UL OFDMA, each scheduled STA send data only on it allocated RU within the BW indicated by AP. • But, how to send pre-HE-STF preamble (legacy preamble, RL-SIG and HESIG-A) in case of UL OFDMA? – Opt1: Pre-HE-STF preamble is duplicated on each 20MHz within the BW • – OBSS STAs close to scheduled STA will regard the whole BW as the busy CH(s) Opt2: Pre-HE-STF preamble is transmitted only on the CH(s) where the allocated RU is located • OBSS STAs close to scheduled STA will regard the CH(s) where the allocated RU is located as the busy CH(s) Opt1 Legacy Legacy Legacy Legacy Submission Opt2 HE-SIGA HE-SIGA HE-SIGA HE-SIGA HE-STF/LTF/data Slide 13 Legacy Legacy Legacy Legacy HE-SIGA HE-SIGA HE-SIGA HE-SIGA .HE-STF/LTF/data David Xun Yang et al. (Huawei) Mar 2016 802.11-16/0395r2 Preamble for UL OFMDA (2/2) • Opt2 is beneficial because – – – No power on the unused CH(s) can avoid the impact on the concurrent OBSS transmission Power focused on CH(s) that contains the STA’s UL allocation keep the similar power density on the preamble and data payload detected by other STAs. • The Pre-HE-STF preamble on 160MHz results in spectrum density 9dB lower than that of 20MHz where the STA’s UL allocation is within 20MHz. Opt 1 will weaken the protection from the OBSS interference of the hidden node Opt2 for UL OFDMA is compatible with that of UL MU-MIMO. • • Legacy preamble and HE-SIG-A is duplicated over the CHs if RU>242. UL MU-MIMO is a special case of UL OFDMA by allocating the largest RU within BW. Protect the used CH by each STA from its OBSS interference Trigger frame Legacy Preamble Legacy Preamble Legacy Preamble Legacy Preamble … Legacy Preamble Legacy Preamble Legacy Preamble Legacy Preamble HE-SIG-A … STA1 HE-SIG-A … STA2 … STA3 HE-SIG-A HE-SIG-A SIFS Protect the whole BW from the BSS interference Submission Slide 14 David Xun Yang et al. (Huawei) Mar 2016 802.11-16/0395r2 Summary • For UL OFDMA, we propose to send the preamble only on the 20MHz-CH(s) where the allocated RU is located. – Protect the used CH(s) for the tended STAs from the OBSS interference – Release the unused CH(s) for the neighbor OBSS STAs to improve the spectrum efficiency Opt2 Legacy Legacy Legacy Legacy Submission Slide 15 HE-SIGA HE-SIGA HE-SIGA HE-SIGA .HE-STF/LTF/data David Xun Yang et al. (Huawei) Mar 2016 802.11-16/0395r2 References [1] 11-15-0132-15-00ax-spec-framework.docx [2] 11-15-0101-01-00ax-preamble-structure-for-11ax-system.pptx Submission Slide 16 David Xun Yang et al. (Huawei) Mar 2016 802.11-16/0395r2 Straw Poll 1 • Do you agree to add the following text to the IEEE 802.11ax SFD? UL pre-HE-STF preamble is sent only on the 20MHz- CH(s) where the HE modulated fields are located. – The UL pre-HE-STF preamble includes legacy preamble, RL-SIG and HE-SIG-A and HE modulated fields refer to HE-STF, HE-LTF and data fields. Submission Slide 17 David Xun Yang et al. (Huawei)