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Sounding Sequences Date: 2016-03-14 Month Year Doc Title Simone Merlin
Name Affiliation Address Phone Simone Merlin Qualcomm 5775 Morehouse Dr. San Diego, CA, USA Albert Van Zelst Straatweg 66-S Breukelen, 3621 BR Netherlands Alfred Asterjadhi Arjun Bharadwaj Bin Tian Carlos Aldana 1700 Technology Drive San Jose, CA 95110, USA George Cherian Gwendolyn Barriac Hemanth Sampath Lin Yang Menzo Wentink Naveen Kakani 2100 Lakeside Boulevard Suite 475, Richardson TX 75082, USA Raja Banerjea 1060 Rincon Circle San Jose CA 95131, USA Richard Van Nee S. Merlin (Qualcomm) John Doe, Some Company
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Authors (continued) Rolf De Vegt Sameer Vermani Qualcomm Alice Chen
Name Affiliation Address Phone Rolf De Vegt Qualcomm 1700 Technology Drive San Jose, CA 95110, USA Sameer Vermani 5775 Morehouse Dr. San Diego, CA, USA Alice Chen Tao Tian Tevfik Yucek VK Jones Youhan Kim S. Merlin (Qualcomm)
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2111 NE 25th Ave, Hillsboro OR 97124, USA
Name Affiliation Address Phone Ron Porat Broadcom Sriram Venkateswaran Matthew Fischer Zhou Lan Leo Montreuil Andrew Blanksby Vinko Erceg Mingyue Ji Robert Stacey Intel 2111 NE 25th Ave, Hillsboro OR 97124, USA Shahrnaz Azizi Po-Kai Huang Qinghua Li Xiaogang Chen Chitto Ghosh Laurent Cariou Yaron Alpert Assaf Gurevitz Ilan Sutskover S. Merlin (Qualcomm)
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Authors (continued) Hongyuan Zhang Marvell
Name Affiliation Address Phone Hongyuan Zhang Marvell 5488 Marvell Lane, Santa Clara, CA, 95054 Yakun Sun Lei Wang Liwen Chu Jinjing Jiang Yan Zhang Rui Cao Sudhir Srinivasa Bo Yu Saga Tamhane Mao Yu Xiayu Zheng Christian Berger Niranjan Grandhe Hui-Ling Lou S. Merlin (Qualcomm)
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Authors (continued) Jianhan Liu Mediatek USA
Name Affiliation Address Phone Jianhan Liu Mediatek USA 2860 Junction Ave, San Jose, CA 95134, USA Thomas Pare ChaoChun Wang James Wang Tianyu Wu Russell Huang James Yee No. 1 Dusing 1st Road, Hsinchu, Taiwan Alan Jauh Frank Hsu Joonsuk Kim Apple Aon Mujtaba Guoqing Li Eric Wong Chris Hartman S. Merlin (Qualcomm)
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Authors (continued) David X. Yang Jiayin Zhang Jun Luo Yi Luo Huawei
Name Affiliation Address Phone David X. Yang Huawei F1-17, Huawei Base, Bantian, Shenzhen Jiayin Zhang 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai Jun Luo Yi Luo Yingpei Lin Jiyong Pang Zhigang Rong 10180 Telesis Court, Suite 365, San Diego, CA NA Jian Yu Ming Gan Yunsong Yang Junghoon Suh 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada Peter Loc Edward Au Teyan Chen Yunbo Li S. Merlin (Qualcomm)
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Authors (continued) Jinmin Kim LG Electronics
Name Affiliation Address Phone Jinmin Kim LG Electronics 19, Yangjae-daero 11gil, Seocho-gu, Seoul , Korea Kiseon Ryu Jinyoung Chun Jinsoo Choi Jeongki Kim Dongguk Lim Suhwook Kim Eunsung Park JayH Park HanGyu Cho Thomas Derham Orange Bo Sun ZTE #9 Wuxingduan, Xifeng Rd., Xi'an, China Kaiying Lv Yonggang Fang Ke Yao Weimin Xing Brian Hart Cisco Systems 170 W Tasman Dr, San Jose, CA 95134 Pooya Monajemi S. Merlin (Qualcomm)
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Authors (continued) Fei Tong Samsung Hyunjeong Kang Kaushik Josiam
Name Affiliation Address Phone Fei Tong Samsung Innovation Park, Cambridge CB4 0DS (U.K.) Hyunjeong Kang Maetan 3-dong; Yongtong-Gu Suwon; South Korea Kaushik Josiam 1301, E. Lookout Dr, Richardson TX 75070 (972) Mark Rison Rakesh Taori (972) Sanghyun Chang Yasushi Takatori NTT 1-1 Hikari-no-oka, Yokosuka, Kanagawa Japan Yasuhiko Inoue Shoko Shinohara Yusuke Asai Koichi Ishihara Junichi Iwatani Akira Yamada NTT DOCOMO 3-6, Hikarinooka, Yokosuka-shi, Kanagawa, , Japan 3759 S. Merlin (Qualcomm)
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Authors (continued) S. Merlin (Qualcomm) Name Affiliation Address
Phone Masahito Mori Sony Corp. Yusuke Tanaka Yuichi Morioka Kazuyuki Sakoda William Carney Tomoko Adachi Toshiba Narendar Madhavan Kentaro Taniguchi Toshihisa Nabetani Tsuguhide Aoki Koji Horisaki David Halls Filippo Tosato Zubeir Bocus Fengming Cao Parag Kulkarni S. Merlin (Qualcomm)
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Authors (continued) Minho Cheong Newracom, Inc.
9008 Research Dr, Irvine, CA 92618 Reza Hedayat Young Hoon Kwon Yongho Seok Daewon Lee Yujin Noh Sigurd Schelstraete Quantenna 3450 W. Warren Ave, Fremont, CA 94538 Huizhao Wang
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Sounding Sequences: Current status
The SFD [1] and the proposed draft specification [2] only partially define the sounding frame exchange sequence. The HE sounding protocol is initiated by an AP sending an NDP Announcement frame (TBD) followed by an HE NDP transmitted a SIFS after the end of the PPDU carrying the NDP Announcement (TBD). An HE AP may use the Trigger frame to solicit HE beamforming feedback from a STA provided that the UL MU Capable field of the most recently received HE Capabilities element from that STA is 1 (see (UL MU operation)). An HE AP may solicit beamforming feedback from multiple STAs sequentially through SU transmission. An example of the HE sounding protocol using MU operation to solicit feedback is shown in Figure 25 3. Several TBDs need be defined/clarified. In this presentation we clarified a couple of aspects related to the sounding sequence. More PHY discussion in [3] S. Merlin (Qualcomm)
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Sounding Sequence With SU Response
11ac allowed the following sounding sequence In current 11ax specifications, the only defined sounding sequence (see previous slide) requires a trigger frame after the NDP, even if only one STA is sounded If NDPA is addressed to a single STA, a trigger frame is not necessary after the NDP, hence we suggest to allow the following sequence in 11ax Reduced overhead Same operation as 11ac Similar discussion in [2] Note: proposals in [1] suggest that all necessary parameters for the feedback preparation be included in NDPA HE NDPA is addressed to 1 STA VHT NDPA VHT NDP SU PPDU CSI From VHT STA SIFS SIFS HE NDPA HE NDP SU PPDU CSI From HE STA SIFS SIFS S. Merlin (Qualcomm)
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Sounding Sequence With Triggers
The specifications are not clear on whether multiple trigger frames can be sent to collect CSI from a same sounding NDPA/NDP We suggest to clarify that a sounding sequence can proceed with SIFS separated trigger transmissions, within a TXOP To collect CSI feedback from large number of STAs To allow for recovery in case of missing CSI response from a STA We suggest to replace the figure in SFD section 4.6 with the following one NDPA addressed to multiple STAs HE NDPA HE NDP Trigger UL TRIG PPDU CSI From HE STAs Trigger UL TRIG PPDU CSI From HE STAs SIFS SIFS SIFS SIFS SIFS 0..N times S. Merlin (Qualcomm)
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SP 1 Do you support to add to the SFD the following sounding sequence?
HE NDPA is addressed to 1 STA HE NDPA HE NDP SU PPDU CSI From HE STA SIFS SIFS S. Merlin (Qualcomm)
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SP 2 Do you support to replace the sounding sequence figure in SFD section 4.6 with following one NDPA addressed to multiple STAs HE NDPA HE NDP Trigger UL TRIG PPDU CSI From HE STAs Trigger UL TRIG PPDU CSI From HE STAs SIFS SIFS SIFS SIFS SIFS 0..N times S. Merlin (Qualcomm)
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References [1] 11-116/389r0 Sounding Design – Sriram V.
[2] 11-15/1340r2 NDP Announcement for HE Sequence – Narendar M. S. Merlin (Qualcomm)
![References [1] /389r0 Sounding Design – Sriram V.](http://slideplayer.com./slide/16997981/98/images/16/References+%5B1%5D+%2F389r0+Sounding+Design+%E2%80%93+Sriram+V..jpg "[2] 11-15/1340r2 NDP Announcement for HE Sequence – Narendar M. S. Merlin (Qualcomm)")
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