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MCS Rules for Acknowledging UL OFDMA

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Presentation on theme: "MCS Rules for Acknowledging UL OFDMA"— Presentation transcript:

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

2 Authors (continued) Albert Van Zelst Alfred Asterjadhi Arjun Bharadwaj
Name Affiliation Address Phone Albert Van Zelst Qualcomm Straatweg 66-S Breukelen, 3621 BR Netherlands Alfred Asterjadhi 5775 Morehouse Dr. San Diego, CA, USA Arjun Bharadwaj Bin Tian Carlos Aldana 1700 Technology Drive San Jose, CA 95110, USA George Cherian Gwendolyn Barriac Hemanth Sampath Menzo Wentink Richard Van Nee Rolf De Vegt Sameer Vermani Simone Merlin Tevfik Yucek   VK Jones Youhan Kim Marvell, et. al.

3 2111 NE 25th Ave, Hillsboro OR 97124, USA
Authors (continued) Name Affiliation Address Phone Robert Stacey Intel 2111 NE 25th Ave, Hillsboro OR 97124, USA      Eldad Perahia Shahrnaz Azizi Po-Kai Huang Qinghua Li Xiaogang Chen Chitto Ghosh Laurent cariou Rongzhen Yang Ron Porat Broadcom Matthew Fischer Sriram Venkateswaran Andrew Blanksby Matthias Korb Tu Nguyen Vinko Erceg Marvell, et. al.

4 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 Joonsuk Kim Apple Aon Mujtaba   Guoqing Li Eric Wong Chris Hartman Marvell, et. al.

5 Authors (continued) Phillip Barber Peter Loc Le Liu Jun Luo Huawei
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 Marvell, et. al.

6 Authors (continued) Hyeyoung Choi LG Electronics
Name Affiliation Address Phone Hyeyoung Choi 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 Thomas Derham Orange 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 Marvell, et. al.

7 Authors (continued) Fei Tong Hyunjeong Kang Samsung 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, Marvell, et. al.

8 Background UL OFDMA frame exchange includes the following two methods to acknowledge UL OFDMA data PPDU from STAs multiuser BA/Ack(M-BA) OFDMA BA/Ack Legacy PPDU, 11ax PPDU Legacy PPDU, 11ax PPDU OFDMA BA Duplicate M-BA Trigger STA15 A-MPDU to AP Trigger STA15 A-MPDU to AP M-BA BA STA2 A-MPDU to AP Trigger STA2 A-MPDU to AP M-BA Backoff or PIFS Trigger BA Backoff or PIFS Trigger STA1 A-MPDU to AP BA Trigger STA1 A-MPDU to AP M-BA Trigger STA0 A-MPDU to AP BA Trigger STA0 A-MPDU to AP M-BA DL UL DL DL UL DL Primary 20MHz channel. TXOP Primary 20MHz channel. TXOP In DL non-MU frame exchange and UL non-MU frame exchange based on EDCA, acknowledgement is from TXOP responder. AP RTS AP’s A-MPDU to STA BA STA CTS BA STA’s A-MPDU to AP Liwen Chu, Marvell, et. al.

9 11mc Baseline MCS Rules Different frame type have different rate/MCS selection rules, e.g. data frame, control frame. Frames with same frame type in different places of frame exchange sequence have different rate/MCS selection rules, e.g. the control frame that initiates the TXOP and the control response frame. Specifically the rate/MCS of the control response frame is decided by the eliciting frame. This allows the transmitting STA to calculate the contents of the Duration/ID field. AP RTS AP’s A-MPDU to STA BA STA CTS BA STA’s A-MPDU to AP Liwen Chu, Marvell, et. al.

10 Rate/MCS Selection Rules for M-BA/DL OFDMA BA
Month Year Doc Title Rate/MCS Selection Rules for M-BA/DL OFDMA BA The rate/MCS of the acknowledgement shouldn’t be restricted by UL OFDMA PPDU: The AP which is the TXOP holder transmits the acknowledgement. APs normally have higher power capacity than STAs. Acknowledgement may use SU PPDU instead of OFDMA PPDU. The AP may allocate different MCS, NSS to different STAs in UL OFDLA transmission. RUs of OFDMA DL acknowledgement may be different from RUs of OFDMA UL A-MPDU/MPDU. M-BA is broadcast/multicast responding frame. Legacy PPDU, 11ax PPDU Legacy PPDU, 11ax PPDU OFDMA BA Duplicate M-BA Trigger STA15 A-MPDU to AP BA Trigger STA15 A-MPDU to AP M-BA STA2 A-MPDU to AP Trigger STA2 A-MPDU to AP M-BA Backoff or PIFS Trigger BA Backoff or PIFS Trigger STA1 A-MPDU to AP BA Trigger STA1 A-MPDU to AP M-BA Trigger STA0 A-MPDU to AP BA Trigger STA0 A-MPDU to AP M-BA DL UL DL DL UL DL Primary 20MHz channel. TXOP Primary 20MHz channel. TXOP Liwen Chu, Marvell, et. al. John Doe, Some Company

11 Rate/MCS Selection Rules for M-BA/DL OFDMA BA (Cont’d)
Month Year Doc Title Rate/MCS Selection Rules for M-BA/DL OFDMA BA (Cont’d) We propose the following rate/MCS selection rules for M-BA/DL OFDMA BA: When an AP selects rate, MCS, NSS of M-BA or OFDMA BA that acknowledges the UL OFDMA, the AP may ignore the MCS, NSS of UL OFDMA PPDU that elicits the DL acknowledgement. The AP shall transmit the M-BA using one of rate, MCS, NSS that all of the acknowledgement receivers support. Legacy PPDU, 11ax PPDU Legacy PPDU, 11ax PPDU OFDMA BA Duplicate M-BA Trigger STA15 A-MPDU to AP BA Trigger STA15 A-MPDU to AP M-BA STA2 A-MPDU to AP STA2 A-MPDU to AP M-BA Backoff or PIFS Trigger BA Backoff or PIFS Trigger Trigger STA1 A-MPDU to AP BA Trigger STA1 A-MPDU to AP M-BA Trigger STA0 A-MPDU to AP BA Trigger STA0 A-MPDU to AP M-BA DL UL DL DL UL DL Primary 20MHz channel. TXOP Primary 20MHz channel. TXOP Liwen Chu, Marvell, et. al. John Doe, Some Company

12 References [1] Draft P802.11REVmc_D4.0 Liwen Chu, Marvell, et. al.

13 Straw Poll 1 Do you agree to add the following rate/MCS selection rules of DL acknowledgement for UL MU to the SFD? When an AP selects rate, MCS, NSS of M-BA or OFDMA BA that acknowledges the UL OFDMA, the AP may ignore the MCS, NSS of UL OFDMA PPDU that elicits the DL acknowledgement. The AP shall transmit the M-BA using one of rate, MCS, NSS that all of the acknowledgement receivers support. Liwen Chu, Marvell, et. al.

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