IEEE 802.11-15/1121r0 Authors' Collaboration in September 2015
Explore the collaborative efforts of multiple authors from leading technology companies such as Qualcomm, LG Electronics, Intel, Broadcom, Marvell, and Mediatek in September 2015 for the IEEE 802.11-15/1121r0 project. The document showcases a diverse group of contributors working on advancements in wireless technology.
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September 2015 doc.: IEEE 802.11-15/1121r0 HE A-Control field Date: 2015-09-12 Authors: Name Affiliation Address Phone email Alfred Asterjadhi aasterja@qti.qualcomm.com 5775 Morehouse Dr. San Diego, CA, USA Simone Merlin smerlin@qti.qualcomm.com Bin Tian btian@qti.qualcomm.com 1700 Technology Drive San Jose, CA 95110, USA Carlos Aldana caldana@qca.qualcomm.com George Cherian gcherian@qti.qualcomm.com 5775 Morehouse Dr. San Diego, CA, USA Gwendolyn Barriac gbarriac@qti.qualcomm.com Hemanth Sampath hsampath@qti.qualcomm.com Menzo Wentink mwentink@qti.qualcomm.com Qualcomm Straatweg 66-S Breukelen, 3621 BR Netherlands Richard Van Nee rvannee@qti.qualcomm.com Albert Van Zelst allert@qti.qualcomm.com 1700 Technology Drive San Jose, CA 95110, USA 5775 Morehouse Dr. San Diego, CA, USA Rolf De Vegt rolfv@qca.qualcomm.com Sameer Vermani svverman@qti.qualcomm.com Tevfik Yucek tyucek@qca.qualcomm.com 1700 Technology Drive San Jose, CA 95110, USA VK Jones vkjones@qca.qualcomm.com Youhan Kim youhank@qca.qualcomm.com 1 Submission Slide 1 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 Authors (continued): Name Affiliation Address 19, Yangjae-daero 11gil, Seocho-gu, Seoul 137-130, Korea Phone email Kiseon Ryu kiseon.ryu@lge.com Hyeyouong Choi hy0117.choi@lge.com Jinyoung Chun jiny.chun@lge.com Jinsoo Choi js.choi@lge.com Jeongki Kim jeongki.kim@lge.com LG Electronics Giwon Park giwon.park@lge.com Dongguk Lim dongguk.lim@lge.com Suhwook Kim suhwook.kim@lge.com Eunsung Park esung.park@lge.com HanGyu Cho hg.cho@lge.com Jinmin Kim jinmin1230.kim@lge.com 2200 Mission College Blvd, Santa Clara, CA 95054 2111 NE 25th Ave, Hillsboro OR 97124, USA Shahrnaz Azizi shahrnaz.azizi@intel.com Eldad Perahia eldad.perahia@intel.com Robert Stacey +1-503-724-893 robert.stacey@intel.com Po-Kai Huang po-kai.huang@intel.com Intel Qinghua Li quinghua.li@intel.com Xiaogang Chen xiaogang.c.chen@intel.com Chittabrata Ghosh chittabrata.ghosh@intel.com Rongzhen Yang rongzhen.yang@intel.com Laurent cariou laurent.cariou@intel.com 1 Submission Slide 2 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 Authors (continued) Name Affiliation Address Phone email Ron Porat rporat@broadcom.com Matthew Fischer mfischer@broadcom.com Sriram Broadcom Venkateswaran Tu Nguyen Vinko Erceg 5488 Marvell Lane, Santa Clara, CA, 95054 Lei Wang 858-205-7286 Leileiw@marvell.com Hongyuan Zhang hongyuan@marvell.com Yakun Sun yakunsun@marvell.com Liwen Chu liwenchu@marvell.com Jinjing Jiang jinjing@marvell.com Marvell Yan Zhang yzhang@marvell.com Rui Cao ruicao@marvell.com Sudhir Srinivasa sudhirs@marvell.com Saga Tamhane sagar@marvell.com Mao Yu my@marvel..com Edward Au edwardau@marvell.com Hui-Ling Lu hlou@marvell.com Submission Slide 3 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 Authors (continued) Name Affiliation Address Phone email No. 1 Dusing 1st Road, Hsinchu, Taiwan James Yee +886-3-567-0766 james.yee@mediatek.com Alan Jauh alan.jauh@mediatek.com Mediatek Chingwa Hu chinghwa.yu@mediatek.com Frank Hsu frank.hsu@mediatek.com 2860 Junction Ave, San Jose, CA 95134, USA `Thomas Pare +1-408-526-1899 thomas.pare@mediatek.com chaochun.wang@mediatek.co m ChaoChun Wang James Wang james.wang@mediatek.com Mediatek USA Jianhan Liu Jianhan.Liu@mediatek.com Tianyu Wu tianyu.wu@mediatek.com Russell Huang russell.huang@mediatek.com ` Submission Slide 4 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 Authors (continued) Name Affiliation Address Phone email pbarber@broadbandmobilete ch.com Phillip Barber The Lone Star State, TX Peter Loc peterloc@iwirelesstech.com 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 F1-17, Huawei Base, Bantian, SHenzhen 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai Le Liu +86-18601656691 liule@huawei.com Jun Luo jun.l@huawei.com Yi Luo +86-18665891036 Roy.luoyi@huawei.com Yingpei Lin linyingpei@huawei.com Jiyong Pang pangjiyong@huawei.com Huawei Zhigang Rong zhigang.rong@huawei.com Rob Sun Rob.Sun@huawei.com David X. Yang david.yangxun@huawei.com Yunsong Yang yangyunsong@huawei.com Zhou Lan +86-18565826350 Lanzhou1@huawei.com Junghoon Suh Junghoon.Suh@huawei.com Jiayin Zhang +86-18601656691 zhangjiayin@huawei.com Submission Slide 5 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 Authors (continued) Name Affiliation Address Phone email Thomas Derham Orange thomas.derham@orange.com 1-1 Hikari-no-oka, Yokosuka, Kanagawa 239-0847 Japan Yasushi Takatori takatori.yasushi@lab.ntt.co.jp Yasuhiko Inoue inoue.yasuhiko@lab.ntt.co.jp NTT Yusuke Asai asai.yusuke@lab.ntt.co.jp Koichi Ishihara ishihara.koichi@lab.ntt.co.jp Akira Kishida kishida.akira@lab.ntt.co.jp 3-6, Hikarinooka, Yokosuka- shi, Kanagawa, 239-8536, Japan yamadaakira@nttdocomo.co m Akira Yamada NTT 3240 Hillview Ave, Palo Alto, CA 94304 watanabe@docomoinnovatio ns.com DOCOMO Fujio Watanabe Haralabos Papadopoulos hpapadopoulos@docomoinno vations.com Innovation Park, Cambridge CB4 0DS (U.K.) Fei Tong +44 1223 434633 f.tong@samsung.com Maetan 3-dong; Yongtong-Gu Suwon; South Korea hyunjeong.kang@samsung.co m Hyunjeong Kang +82-31-279-9028 1301, E. Lookout Dr, Richardson TX 75070 Innovation Park, Cambridge CB4 0DS (U.K.) +44 1223 434600 1301, E. Lookout Dr, Richardson TX 75070 Kaushik Josiam (972) 761 7437 k.josiam@samsung.com Samsung Mark Rison m.rison@samsung.com Rakesh Taori (972) 761 7470 rakesh.taori@samsung.com Maetan 3-dong; Yongtong-Gu Suwon; South Korea +82-10-8864- 1751 Sanghyun Chang s29.chang@samsung.com Submission Alfred Asterjadhi, et. al. Slide 6
September 2015 doc.: IEEE 802.11-15/1121r0 Authors (continued) Name Affiliation Address Phone email #9 Wuxingduan, Xifeng Rd Xian, China Bo Sun sun.bo1@zte.com.cn Kaiying Lv lv.kaiying@zte.com.cn Yonggang Fang ZTE Ke Yao Weimin Xing 170 W Tasman Dr, San Jose, CA 95134 Brian Hart brianh@cisco.com Cisco Systems Pooya Monajemi pmonajem@cisco.com Joonsuk Kim joonsuk@apple.com Aon Mujtaba mujtaba@apple.com Guoqing Li Apple guoqing_li@apple.com Eric Wong ericwong@apple.com Chris Hartman chartman@apple.com Submission Slide 7 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 Introduction Many features that are candidates for 11ax require a wide range of control information to be exchanged between HE STAs and AP Examples include: Buffer status feedback, channel quality information feedback, resource allocation, power save feedback, power control, rx. operation mode change, etc. All this control information needs to be signaled somewhere within exchanged frames between STAs We propose to define an HE Aggregated (A-) Control field that: Is a universal carrier of all control information needed for different 11ax features, Is flexible and can be dynamically added to any PPDU with minimal overhead Submission Slide 8 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 HE A-Control field 0-3 Bytes If 4 Octet boundary is preferred Padding HE Control 1 HE Control 2 HE Control N HE A-Control field We propose to define an HE A-Control field that: Carries one or more HE Control fields Each HE Control carries control info. for different HE features [1, 2, 3] HE A-Control field can be carried in PPDUs as part of: QoS Data/MGMT frames in the HT Control field HE A-Control field is compatible with HE variant of HT Control field See next slide It will be 4 Octets in length, i.e., no change in MAC header size Keeps backward compatibility Submission Slide 9 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 HE A-Control field as HT Control variant 2 2 6 6 6 2 0/6 0/2 0/4 0/8 variable 0/8 4 Duration /ID QoS Ctrl HT Ctrl CCMP Header Frame Body FC A1 A2 A3 SC A4 MIC FCS variable B1 B2 B6 B7 B0 VHT (1) HE (1) Control ID EOH (0) Ctrl. Info. Reserved value indicates HE A-Control variant of HT Control field HE A-Control field HE A-Control field added to QoS Data/Mgmt frames (variant of HT Control field) Currently the type of the HT Control field is determined by values of B0 and B1 B0 of HT Control field differentiates the VHT variant from the basic HT Control field (11n/11ac) If B0 and B1 are 1 then the HT Control field contains an HE A-Control field variant (11ax) Control ID field identifies the control information (usable for future amendments as well) End of HE Control (EOH) subfield in an HE Control indicates if another HE Control follows Contents of HT Control field across multiple MPDUs of an A-MPDU Currently it is the same for all HT Control fields generated by pre-11ax STAs (11n/11ac) Within HE PPDUs we may want to consider relaxing this restriction: A large variety of control information can be carried within the A-MPDU Increases robustness of info. by aggregating it in different parts of A-MPDU with minimal overhead Slide 10 Submission Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 HE Control field: Preview Octets: 1 0 or more Reserved Control ID EOH Control Information Bits: 2 5 1 Control ID Control Information Description 0 Ack Indicates an Ack (successful RX of immediately preceding MPDU) 1 BAR Indicates a Block Ack Request (request for a block ack) 2 BA Indicates a Block Ack (receive status of previously received MPDUs) 3 QoS Control Indicates buffer status request/report (enhanced version of QoS Control) 4 CQI Control Indicates channel quality info./MCS feedback (enhanced version of HT) 5 Unicast Trigger Indicates a Trigger (resource allocation and other parameters for UL) 6 ROMI Indicates a receive operating mode change [2] 7-30 TBD 31 Extension Reserved for future extension See Appendix for a couple of examples Submission Slide 11 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 Summary We propose defining an HE A-Control field that: Is a universal carrier of control information needed for new 11ax features, Is flexible and can be dynamically added to any PPDU with minimal overhead Is extensible for future amendments Submission Slide 12 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 Straw Poll 1 Do you agree defining an HE variant (of the VHT variant) of the HT Control field that carries one or more control fields for HE control information? B0 and B1 of the HT Control field in this case are set to 1 The control fields can be called HE Control field Submission Slide 13 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 References [1] L. Chu (Marvell), et. al., 11-15-xxxx-00-00ax-acknowledgement to DL MU [2] E. Wong (Apple), et. al., 11-15-0xxx-00-00ax-receive-operating-mode- indication-for-power-save [3] A. Asterjadhi et. al., 11-15-xxxx-00-00ax-buffer status report Submission Slide 14 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 APPENDIX Submission Slide 15 Alfred Asterjadhi, et. al.
July 2015 doc.: IEEE 802.11-15/1121r0 HE Control: E.g., request/response for ack Octets: 1 0 or more Ack (Control ID 0) Control ID Control Information Reserved EOH Octets: 2 4 Bits: 2 5 1 BAR (Control ID 1) BAR Control BAR Information HE Control 1 HE Control n Octets: 2 variable BA (Control ID 2) BA Control BA Information HE A-Control field Same contents as Ack/BAR/BA frames STA adds HE Control to request/respond for/with acknowledgements HE Control is part of the HE A-Control field The STA can carry control information in an HE A-Control field instead of adding Ack, BlockAck, or BAR frames whenever possible Reduces MAC overhead and simplifies design as it eliminates the need of aggregating multiple CTRL frames Submission Slide 16 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 HE Control: E.g., buffer status poll/report Octets: 1 2 2 Control ID Control Information QoS Control (Control ID 3) QoS Control Reserved EOH Bits: 2 5 1 Reserved TID/ SF TXOP Duration Requested TID /SF HE Control 1 HE Control n Queue Size BS polling BS report The AP polls the STAs for their buffer status in an efficient way [3] It sends BS polling frames that contain an enhanced QoS Control field Specifying whether polling is per-TID , all-TID and other related BS polling parameters Non-AP STAs deliver buffer status reports in the QoS Control field Per-TID BS information is carried in QoS Data and QoS Null frames All-TID, per-TID BS information is carried in the enhanced QoS Control field The enhanced QoS Control can be aggregated with other info. in HE A-Control Reduces the incurred MAC overhead and has other benefits as specified in [3] Submission Slide 17 Alfred Asterjadhi, et. al.
September 2015 doc.: IEEE 802.11-15/1121r0 HE Control: E.g., unicast Trigger Octets: 1 0 or more Octets: Variable (TBD) Control ID Control Information Unicast Trigger (Control ID 5) Trigger Information Reserved EOH Bits: 2 5 1 Same contents as per-STA Info field of Trigger frame HE Control 1 HE Control n HE A-Control field AP can add an HE Control field to indicate unicast trigger information Subchannel allocation for a STA, compressed/uncompressed UL MAC format, etc. Reduces overhead of a standalone MAC frame etc. [1] By being part of an HE A-Control carried in a DL MU PPDU This way additional control information for the STA can be carried in the DL MU PPDU with minimal overhead Submission Slide 18 Alfred Asterjadhi, et. al.
