Sept. 2016 doc.: IEEE 802.11-16/01182r0 HE Sounding Segmentation

Sept. 2016 doc.: IEEE 802.11-16/01182r0 HE Sounding Segmentation

Sept. 2016 doc.: IEEE 802.11-16/01182r0 HE Sounding Segmentation Date: 2016-09-12 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 1 Liwen Chu (Marvell) et. al., Sept. 2016 doc.: IEEE 802.11-16/01182r0 Authors (continued) Name Affiliation Alfred Asterjadhi Straatweg 66-S Breukelen, 3621 BR Netherlands 5775 Morehouse Dr. San Diego, CA, USA Albert Van Zelst Alice Chen 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 5775 Morehouse Dr. San Diego, CA, USA 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 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] m [email protected] [email protected] [email protected] Liwen Chu et. al. Sept. 2016 doc.: IEEE 802.11-16/01182r0 Authors (continued) Name Affiliation Rolf De Vegt Sameer Vermani Simone Merlin Tao Tian Qualcomm VK Jones Youhan Kim

Intel 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] 2111 NE 25th Ave, Hillsboro OR 97124, USA Ilan Sutskover Submission Phone [email protected] [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 Tevfik Yucek Robert Stacey Shahrnaz Azizi Po-Kai Huang Qinghua Li Xiaogang Chen Chitto Ghosh Laurent Cariou Yaron Alpert Assaf Gurevitz Address [email protected] [email protected] [email protected] +1-503-724-893 [email protected] [email protected] [email protected] [email protected]

[email protected] [email protected]om [email protected] [email protected] [email protected] [email protected] Slide 3 Liwen Chu et. al. Sept. 2016 Name doc.: IEEE 802.11-16/01182r0 Affiliation James Yee Alan Jauh Address Phone Email No. 1 Dusing 1st Road, Hsinchu, Taiwan +886-3-567-0766 [email protected] [email protected] [email protected] m [email protected] Mediatek Chingwa Hu Frank Hsu 2860 Junction Ave, San Jose, CA 95134, USA Thomas Pare Mediatek USA Russell Huang Joonsuk Kim [email protected] [email protected] Aon Mujtaba Guoqing Li [email protected] [email protected] com [email protected]

[email protected] [email protected] [email protected] [email protected] m ChaoChun Wang James Wang Jianhan Liu Tianyu Wu Zhou Lan +1-408-526-1899 Apple [email protected] Eric Wong [email protected] Chris Hartman [email protected] Submission Slide 4 Liwen Chu et. al. Sept. 2016 doc.: IEEE 802.11-16/01182r0 Authors (continued) Name Affiliation Peter Loc Le Liu Jun Luo Yi Luo Yingpei Lin Jiyong Pang Zhigang Rong Rob Sun David X. Yang Yunsong Yang Junghoon Suh Jiayin Zhang Edward Au Teyan Chen Yunbo Li Submission Huawei Address F1-17, Huawei Base, Bantian, Shenzhen

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 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada F1-17, Huawei Base, Bantian, Shenzhen 10180 Telesis Court, Suite 365, San Diego, CA 92121 NA 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada F1-17, Huawei Base, Bantian, Shenzhen F1-17, Huawei Base, Bantian, Shenzhen Slide 5 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] +86-18601656691 [email protected] [email protected] [email protected] [email protected] Liwen Chu et. al. Sept. 2016

doc.: IEEE 802.11-16/01182r0 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 Dongguk Lim LG Electronics 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] #9 Wuxingduan, Xifeng Rd., Xi'an, China Bo Sun Kaiying Lv Yonggang Fang Ke Yao Weimin Xing Brian Hart

Pooya Monajemi Submission ZTE Cisco Systems 170 W Tasman Dr, San Jose, CA 95134 Slide 6 [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] Liwen Chu et. al. Sept. 2016 doc.: IEEE 802.11-16/01182r0 Authors (continued) Name Affiliation Address 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 Fei Tong Hyunjeong Kang Kaushik Josiam Mark Rison Rakesh Taori Sanghyun Chang Phone Email +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 [email protected] Yasuhiko Inoue [email protected] Shoko Shinohara Yusuke Asai NTT 1-1 Hikari-no-oka, Yokosuka, Kanagawa 239-0847 Japan [email protected] [email protected] Koichi Ishihara [email protected] Junichi Iwatani [email protected] Akira Yamada Fujio Watanabe Haralabos Papadopoulos Submission NTT DOCOMO 3-6, Hikarinooka, Yokosuka-shi, Kanagawa, 239-8536, Japan [email protected] 3240 Hillview Ave, Palo Alto, CA 94304

[email protected] com [email protected] tions.com Slide 7 Liwen Chu et. al. Sept. 2016 doc.: IEEE 802.11-16/01182r0 Authors (continued) Name Affiliation Address Phone Email Ron Porat [email protected] Sriram Venkateswaran [email protected] Matthew Fischer Leo Montreuil Broadcom Andrew Blanksby Vinko Erceg Thomas Derham [email protected] Masahito Mori [email protected] Yusuke Tanaka [email protected] Yuichi Morioka [email protected] Sony Corp. Kazuyuki Sakoda [email protected] William Carney [email protected]

Submission Slide 8 Liwen Chu et. al. Sept. 2016 doc.: IEEE 802.11-16/01182r0 Beamforming Feedback Fragmentation Avoidance Recap: To avoid sounding feedback fragmentation, the following rule is defined in 11ax The HE beamformer shall have the supported MPDU size large enough to avoid fragmentation except when 11,454 is reached. However it is not clear whether there is specific rules about resource allocation to beamformee in Beamforming Report Poll Trigger frame. The HE sounding fragmentation method is not clearly defined in 11ax D0.1. Submission Liwen Chu, Marvell, et. al. Sept. 2016 doc.: IEEE 802.11-16/01182r0 Beamforming Feedback Fragmentation Avoidance The following rules should be applied to 11ax sounding feedback fragmentation which is similar to 11ac: the sounding feedback shall be split into up to 8 feedback segments. Each of the feedback segments except the last shall contain the maximum number of octets allowed by the HE beamformers maximum MPDU length capability. The feedback segments shall be sent in a single A-MPDU and shall be included in the A-MPDU in the descending order of the Remaining Feedback Segments subfield values. All segments in the first transmission The requested segments in the retransmission All segments in the retransmission should be disallowed in not request by the beamformer. The difference between HE trigger-based sounding feedback and VHT sounding feedback is that: In VHT sounding feedback, it is the beamformee to decide the resource for sounding feedback. 11ac mandates that In HE trigger-based sounding feedback, Trigger frame defines the resource of HE sounding feedback. If the resource allocated for STAs feedback is not enough, the beamformee may not be able to send sounding feedback in one A-MPDU. When the sounding feedback is retransmitted, the AP only allocates the enough resource for the retransmitted segments. If the beamformee retransmit all segments, the allocated resource may not be enough. Submission Liwen Chu, Marvell, et. al.

Sept. 2016 doc.: IEEE 802.11-16/01182r0 Beamforming Feedback Fragmentation Avoidance APs resource allocation in Beamforming Report Poll Trigger should be defined: in Beamforming Report Poll Trigger, the allocated UL resource for one beamformees sounding feedback shall be enough for the beamformee to transmit the requested sounding feedback in one PPDU per its Feedback type, Ng, codebook size, Nc, and Partial Bandwidth Info. STAs (beamformees) behavior should be defined: When the AP requests retransmission of sounding feedback segments from a beamformee through Beamforming Report Poll Trigger, the beamformee shall transmit the requested segments first. Submission Liwen Chu, Marvell, et. al. Sept. 2016 Straw Poll 1 doc.: IEEE 802.11-16/01182r0 Do you support, in Beamforming Report Poll Trigger, the allocated UL resource for one beamformees sounding feedback shall be enough for the beamformee to transmit the requested sounding feedback in the trigger-based PPDU that is sent as a response per its Feedback type, Ng, codebook size, Nc. Submission Liwen Chu, Marvell, et. al. Sept. 2016 Straw Poll 2 doc.: IEEE 802.11-16/01182r0 Do you the following rules apply to 11ax sounding feedback fragmentation, the sounding feedback shall be split into up to 8 feedback segments Each of the feedback segments except the last shall contain the maximum number of octets allowed by the HE beamformers maximum MPDU length capability the request feedback segments shall be sent in a single A-MPDU and shall be included in the AMPDU in the descending order of the Remaining Feedback Segments subfield values. Submission Liwen Chu, Marvell, et. al.

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