Submission /0615r3July 2015 UL OFDMA Bandwidth Slide 1 Date: Authors: NameAffiliationAddressPhone Liwen Chu Marvell 5488 Marvell Lane, Santa Clara, CA, 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 Liwen Chu, Marvell, et. al.
Submission /0615r3July 2015 Slide 2 Authors (continued) Liwen Chu, Marvell, et. al. NameAffiliationAddressPhone Albert Van Zelst Qualcomm Straatweg 66-S Breukelen, 3621 BR Netherlands Alfred Asterjadhi 5775 Morehouse Dr. San Diego, CA, USA Arjun Bharadwaj 5775 Morehouse Dr. San Diego, CA, USA Bin Tian 5775 Morehouse Dr. San Diego, CA, USA Carlos Aldana 1700 Technology Drive San Jose, CA 95110, USA George Cherian 5775 Morehouse Dr. San Diego, CA, USA Gwendolyn Barriac 5775 Morehouse Dr. San Diego, CA, USA Hemanth Sampath 5775 Morehouse Dr. San Diego, CA, USA Menzo Wentink Straatweg 66-S Breukelen, 3621 BR Netherlands Richard Van Nee Straatweg 66-S Breukelen, 3621 BR Netherlands Rolf De Vegt 1700 Technology Drive San Jose, CA 95110, USA Sameer Vermani 5775 Morehouse Dr. San Diego, CA, USA Simone Merlin 5775 Morehouse Dr. San Diego, CA, USA Tevfik Yucek 1700 Technology Drive San Jose, CA 95110, USA VK Jones 1700 Technology Drive San Jose, CA 95110, USA Youhan Kim 1700 Technology Drive San Jose, CA 95110, USA
Submission /0615r3July 2015 Slide 3 Authors (continued) Liwen Chu, Marvell, et. al. NameAffiliationAddressPhone 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
Submission /0615r3July 2015 Slide 4 Authors (continued) Liwen Chu, Marvell, et. al. NameAffiliationAddressPhone James Yee Mediatek No. 1 Dusing 1 st Road, Hsinchu, Taiwan Alan Jauh Chingwa Hu m Frank Hsu Thomas Pare Mediatek USA 2860 Junction Ave, San Jose, CA 95134, USA ChaoChun Wang om James Wang Jianhan Liu Tianyu Wu Russell Huang m Joonsuk Kim Apple Aon Mujtaba Guoqing Li Eric Wong Chris
Submission /0615r3July 2015 Slide 5 Authors (continued) Liwen Chu, Marvell, et. al. NameAffiliationAddressPhone Phillip Barber Huawei The Lone Star State, TX ch.com Peter Loc Le Liu F1-17, Huawei Base, Bantian, Shenzhen Jun Luo 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai Yi Luo F1-17, Huawei Base, Bantian, Shenzhen Yingpei Lin 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai Jiyong Pang 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai Zhigang Rong Telesis Court, Suite 365, San Diego, CA NA Rob Sun 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada David X. Yang F1-17, Huawei Base, Bantian, Shenzhen Yunsong Yang Telesis Court, Suite 365, San Diego, CA NA Zhou Lan F1-17, Huawei Base, Bantian, SHenzhen Junghoon Suh 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada Jiayin Zhang 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai
Submission /0615r3July 2015 Slide 6 Authors (continued) Liwen Chu, Marvell, et. al. 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 Pooya Monajemi NameAffiliationAddressPhone 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 DerhamOrange
Submission /0615r3July 2015 Slide 7 Authors (continued) Liwen Chu, Marvell, et. al. NameAffiliationAddressPhone 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 (972) Mark Rison Innovation Park, Cambridge CB4 0DS (U.K.) Rakesh Taori 1301, E. Lookout Dr, Richardson TX (972) Sanghyun Chang Maetan 3-dong; Yongtong-Gu Suwon; South Korea 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 com Haralabos Papadopoulos tions.com
Submission /0615r3July 2015 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 Slide 8Liwen Chu, Marvell, et al.
Submission /0615r3July 2015 Transmission Sequence of SU TXOP In SU frame exchange, the frame exchange is eliciting MPDU/A-MPDU and single responding MPDU. –One TXOP responder acknowledges the received MPDU/A-MPDU. When the TXOP holder receives the responding frame of the eliciting frame, the frame exchange is successful. ‒ When the following frame exchange in the TXOP fails, the AP can do PIFS recovery without backoff. Slide 9Liwen Chu, Marvell, et al. Primary 20MHz channel. TXOP Backoff AP’s A-MPDU to STA0 STA0’s BA
Submission /0615r3July 2015 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 MPDU sent as immediate response to a Trigger Frame indicates a successful transmission of the trigger frame. –The AP can decide the following behavior in the TXOP based on the correctly received successful UL OFDMA MPDU/A-MPDU, e.g. continue the OFDMA transmission, switch to SU frame exchange. –When the following frame exchange in the TXOP fails, the AP can do PIFS recovery without backoff. Slide 10Liwen Chu, Marvell, et al. Primary 20MHz channel. STA2 A-MPDU to AP TXOP Backoff DLUL STA3 A-MPDU to AP STA0 A-MPDU to AP STA1 A-MPDU to AP Multi-STABA Trigger 40MHz
Submission /0615r3July 2015 References [1] / ax-spec-framework [2] /0064r1 Consideration on UL-MU overheads [3] /0365r0 UL MU procedure for 11ax system Slide 11Liwen Chu, Marvell, et al.
Submission /0615r3July 2015 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 MPDU correctly from at least one STA indicated by trigger frame, the frame exchange initiated by the trigger frame is successful Slide 12Liwen Chu, Marvell, et al.