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Fragmentation with MU Operation

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Presentation on theme: "Fragmentation with MU Operation"— Presentation transcript:

1 Fragmentation with MU Operation
September 2015 Fragmentation with MU Operation Date: Authors: Name Affiliation Address Phone Chittabrata Ghosh Intel 2200 Mission College Blvd., Santa Clara, CA 95054, USA     Robert Stacey Eldad Perahia Shahrnaz Azizi Po-Kai Huang Qinghua Li Laurent Cariou Xiaogang Chen Rongzhen Yang Yaron Alpert Avi Mansour Chittabrata Ghosh, et al. (Intel)

2 Authors (continued) September 2015 Albert Van Zelst Alfred Asterjadhi
Name Affiliation Address Phone Albert Van Zelst Qualcomm Straatweg 66-S Breukelen, 3621 BR Netherlands Alfred Asterjadhi 5775 Morehouse Dr. San Diego, CA, USA 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 Chittabrata Ghosh, et al. (Intel)

3 19, Yangjae-daero 11gil, Seocho-gu, Seoul 137-130, Korea
September 2015 Authors (continued) Name Affiliation Address Phone Ron Porat Broadcom Matthew Fischer Sriram Venkateswaran Tu Nguyen Vinko Erceg Kiseon Ryu LG Electronics 19, Yangjae-daero 11gil, Seocho-gu, Seoul , Korea   Jinyoung Chun Jinsoo Choi Jeongki Kim Suhwook Kim Hyeyoung Choi Dongguk Lim Eunsung Park Jinmin Kim HanGyu Cho Chittabrata Ghosh, et al. (Intel)

4 Authors (continued) September 2015 Phillip Barber Peter Loc Le Liu
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 Chittabrata Ghosh, et al. (Intel)

5 Authors (continued) September 2015 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 Saga Tamhane Mao Yu Edward Au Hui-Ling Lou Thomas Derham Orange Brian Hart Cisco 170 W Tasman Dr, San Jose, CA 95134 Pooya Monajemi Chittabrata Ghosh, et al. (Intel)

6 Authors (continued) September 2015 Fei Tong Hyunjeong Kang Samsung
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 Chittabrata Ghosh, et al. (Intel)

7 Authors (continued) September 2015 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 Bo Sun ZTE #9 Wuxingduan, Xifeng Rd., Xi’an, China Kaiying Lv Yonggang Fang Ke Yao Weimin Xing Chittabrata Ghosh, et al. (Intel)

8 Authors (continued) September 2015 Joonsuk Kim Apple Cupertino, CA
Name Affiliation Address Phone Joonsuk Kim Apple Cupertino, CA     Aon Mujtaba Guoqing Li Eric Wong Chris Hartman Chittabrata Ghosh, et al. (Intel)

9 September 2015 Abstract In this contribution, we introduce the concept of fragmentation for MU operation of HE STAs Chittabrata Ghosh, et al. (Intel)

10 UL MU Procedure defined in 11ax SFD [2]
September 2015 UL MU Procedure defined in 11ax SFD [2] AP transmits a Trigger frame soliciting the transmission of UL MU PPDU from multiple STAs. STAs transmit UL MU (OFDMA or MU-MIMO) PPDU as immediate response to the Trigger frame. AP transmits acknowledgement frame in response to UL MU PPDU. Chittabrata Ghosh, et al. (Intel)

11 Motivation for fragmentation
September 2015 Motivation for fragmentation UL allocation or DL PPDU MSDU MSDU MSDU Frag STA 1 MSDU MSDU MSDU MSDU MSDU MSDU STA 2 MSDU MSDU Frag STA 3 With MU operation, each allocation has a different capacity (dependent on BW, MCS, NSS) Only rarely will an integer number of complete MSDUs fill the available resource / duration allocation Instead of padding to the allocation boundary, an STA may insert a fragment of an MSDU Allows each allocation to be completely filled with user data Chittabrata Ghosh, et al. (Intel)

12 UL MU operation With UL MU operation, the AP may determine
September 2015 UL MU operation With UL MU operation, the AP may determine RU size, MCS and number of payload symbols Without dynamic fragmentation, the STA can only fill the allocation with the granularity of the MPDU size If the remaining space in the payload is 1400 octets and the STA has a 1534 octet MPDU, then the STA will have to add 1400 octets of padding Worse, if the STA is allocated a small RU (say space for 500 octets), then the STA will not be able to send anything With dynamic fragmentation, the STA can efficiently fill any allocation Chittabrata Ghosh, et al. (Intel)

13 September 2015 Summary In this presentation, we proposed the fragmentation concept for MU operation for HE STAs Chittabrata Ghosh, et al. (Intel)

14 September 2015 References [1] IEEE /0165r1 “ HEW SG Proposed PAR” [2] IEEE /0132r2 “Specification Framework for Tax” Chittabrata Ghosh, et al. (Intel)

15 September 2015 Straw-poll Do you agree that the spec shall support fragmentation negotiation in A-MPDUs for HE STAs? Yes: No: Abstain Chittabrata Ghosh, et al. (Intel)

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