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Liwen Chu et al. (Marvell)

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1 Liwen Chu et al. (Marvell)
UL OFDMA Bandwidth Date: Name Affiliation Address Phone Liwen Chu Marvell 5488 Marvell Lane, Santa Clara, CA, 95054 Lei Wang Jinjing Jiang Hongyuan Zhang Yakun Sun Yan Zhang Rui Cao Jie Huang Sudhir Srinivasa Saga Tamhane Mao Yu Edward Au Hui-Ling Lou Liwen Chu et al. (Marvell)

2 Authors (continues): Month Year Doc Title Liwen Chu et al. (Marvell)
Name Affiliation Address Phone Simone Merlin Qualcomm 5775 Morehouse Dr. San Diego, CA, USA Santosh Abraham Gwendolyn Barriac Cherian Gorge Alfred Asterjadhi Bin Tian 1700 Technology Drive San Jose, CA 95110, USA Carlos Aldana Hemanth Sampath Menzo Wentink Straatweg 66-S Breukelen, 3621 BR Netherlands Richard Van Nee Rolf De Vegt Sameer Vermani Albert Van Zelst Tevfik Yucek   VK Jones Youhan Kim Liwen Chu et al. (Marvell) John Doe, Some Company

3 Authors (continued) Wookbong Lee LG Electronics
Name Affiliation Address Phone Wookbong Lee LG Electronics 19, Yangjae-daero 11gil, Seocho-gu, Seoul , Korea Kiseon Ryu Jinyoung Chun Jinsoo Choi Jeongki Kim Giwon Park Dongguk Lim Suhwook Kim Eunsung Park HanGyu Cho Laurent cariou Orange Thomas Derham Liwen Chu et al. (Marvell)

4 Authors (continued) Ron Porat Broadcom Matthew Fischer
Name Affiliation Address Phone Ron Porat Broadcom Matthew Fischer Sriram Venkateswaran Tu Nguyen Vinko Erceg Robert Stacey Intel 2111 NE 25th Ave, Hillsboro OR 97124, USA      Eldad Perahia Shahrnaz Azizi Po-Kai Huang Qinghua Li Xiaogang Chen Chitto Ghosh Rongzhen Yang Liwen Chu et al. (Marvell)

5 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 Yusuke Asai Koichi Ishihara Akira Kishida Akira Yamada NTT DOCOMO 3-6, Hikarinooka, Yokosuka-shi, Kanagawa, , Japan Fujio Watanabe 3240 Hillview Ave, Palo Alto, CA 94304 Haralabos Papadopoulos Liwen Chu et al. (Marvell)

6 Authors (continued) Phillip Barber Huawei Peter Loc Le Liu Jun Luo
Name Affiliation Address Phone Phillip Barber Huawei The Lone Star State, TX Peter Loc Le Liu F1-17, Huawei Base, Bantian, Shenzhen Jun Luo 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai Yi Luo Yingpei Lin Jiyong Pang Zhigang Rong 10180 Telesis Court, Suite 365, San Diego, CA  NA Rob Sun 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada David X. Yang Yunsong Yang Zhou Lan F1-17, Huawei Base, Bantian, SHenzhen Junghoon Suh Jiayin Zhang Liwen Chu et al. (Marvell)

7 Authors (continued) James Yee Mediatek
Name Affiliation Address Phone James Yee Mediatek No. 1 Dusing 1st Road, Hsinchu, Taiwan   Alan Jauh Chingwa Hu Frank Hsu Thomas Pare USA 2860 Junction Ave, San Jose, CA 95134, USA ChaoChun Wang James Wang Jianhan Liu Tianyu Wu Russell Huang Liwen Chu et al. (Marvell)

8 Authors (continued) Brian Hart Cisco Systems
Name Affiliation Address Phone Brian Hart Cisco Systems 170 W Tasman Dr, San Jose, CA 95134 Pooya Monajemi Bo Sun ZTE #9 Wuxingduan, Xifeng Rd., Xi'an, China Kaiying Lv Yonggang Fang Ke Yao Weimin Xing Joonsuk Kim Apple Cupertino, CA   Aon Mujtaba Guoqing Li Eric Wong Chris Hartman Liwen Chu et al. (Marvell)

9 Introduction The following text was included in 11ax SFD [1]
An UL MU PPDU (MU-MIMO or OFDMA) is sent as an immediate response (IFS TBD) to a Trigger frame (format TBD) sent by the AP The amendment shall define a mechanism for multiplexing DL acknowledgments sent in response to UL MU Transmissions In this presentation we defines the rules for UL OFDMA transmission Liwen Chu et al. (Marvell)

10 UL OFDMA Transmission Sequence: UL OFDMA PPDU
Month Year Doc Title UL OFDMA Transmission Sequence: UL OFDMA PPDU For a UL OFDMA transmission, the frame exchange sequence defined in 11ax SFD [3] is Trigger frame, UL OFDMA PPDU, DL acknowledge. Trigger frame indicates to a set of STAs to transmit UL OFDMA PPDUs as an immediate response to the Trigger frame, the subchannels of the STAs for UL transmission etc. We propose that the reception of at least one of the UL OFDMA MPDU/A-MPDU sent as immediate response to a Trigger Frame indicates a successful transmission of the trigger frame Moreover, An AP shall not allocate UL subchannel in any 20MHz channel that is not occupied by the Trigger frame. In each 20MHz channel occupied by the Trigger frame, there is at least one allocated subchannel for UL transmission. Multi-STABA Trigger STA3 A-MPDU to AP Multi-STA BA 40MHz STA2 A-MPDU to AP Trigger STA1 A-MPDU to AP Multi-STA BA Backoff STA0 A-MPDU to AP UL DL Primary 20MHz channel. TXOP Liwen Chu et al. (Marvell) John Doe, Some Company

11 References [1] 802.11-15/0132-04-00ax-spec-framework
[2] /0064r1 Consideration on UL-MU overheads [3] /0365r0 UL MU procedure for 11ax system Liwen Chu et al. (Marvell)

12 Straw Poll 1 Do you agree to add the following to the SFD:
UL OFDMA MPDU/A-MPDU is the acknowledgement of the trigger frame. When the AP receives UL MPDU/A-MPDU correctly from at least one STA indicated by trigger frame, the frame exchange initiated by the trigger frame is successful An AP shall not allocate UL subchannel in any 20MHz channel that is not occupied by the Trigger frame. In each 20MHz channel occupied by the Trigger frame, there is at least one allocated subchannel Liwen Chu et al. (Marvell)

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