Mar 2016 doc IEEE 802 11 160414 r

Mar 2016 doc. : IEEE 802. 11 -16/0414 r 1 Adjustment Rules for Adaptive CCA and TPC Date: 2016 -03 -13 Authors: Name Affiliation James Wang Address Phone Email 2860 Junction Ave, San Jose, CA 95134, USA +1 -408 -526 -1899 james. wang@mediatek. com Thomas Pare Chao. Chun Wang Jianhan Liu thomas. pare@mediatek. com chaochun. wang@mediatek. c om Mediatek USA jianhanliu@mediatek. com Tianyu Wu tianyu. wu@mediatek. com Russell Huang russell. huang@mediatek. co m No. 1 Dusing 1 st Road, Hsinchu, Taiwan James Yee Alan Jauh Mediatek james. yee@mediatek. com alan. jauh@mediatek. com Frank Hsu Joonsuk Kim frank. hsu@mediatek. com joonsuk@apple. com mujtaba@apple. com Aon Mujtaba Guoqing Li +886 -3 -567 -0766 guoqing_li@apple. com Apple Eric Wong ericwong@apple. com Chris Hartman chartman@apple. com Submission Slide 1

doc. : IEEE 802. 11 -16/0414 r 1 Authors: Name Affiliation Address Phone Ron Porat Sriram Venkateswaran Matthew Fischer Zhou Lan Email rporat@broadcom. com mfischer@broadcom. com Broadcom Leo Montreuil Andrew Blanksby Vinko Erceg Robert Stacey robert. stacey@intel. com Shahrnaz Azizi shahrnaz. azizi@intel. com Po-Kai Huang po-kai. huang@intel. com Qinghua Li Xiaogang Chen Intel 2111 NE 25 th Ave, Hillsboro OR 97124, USA quinghua. li@intel. com +1 -503 -724 -893 xiaogang. c. chen@intel. com Chitto Ghosh chittabrata. ghosh@intel. com Laurent Cariou laurent. cariou@intel. com Yaron Alpert yaron. alpert@intel. com Assaf Gurevitz assaf. gurevitz@intel. com Ilan Sutskover Submission Slide 2 ilan. sutskover@intel. com

doc. : IEEE 802. 11 -16/0414 r 1 Authors (continued) Name Affiliation Address Phone Email Hongyuan Zhang hongyuan@marvell. com Yakun Sun yakunsun@marvell. com Lei Wang Leileiw@marvell. com Liwen Chu liwenchu@marvell. com Jinjing Jiang jinjing@marvell. com Yan Zhang yzhang@marvell. com Rui Cao Sudhir Srinivasa Bo Yu Marvell 5488 Marvell Lane, Santa Clara, CA, 95054 Saga Tamhane ruicao@marvell. com 408 -222 -2500 sudhirs@marvell. com boyu@marvell. com sagar@marvell. com Mao Yu my@marvel. . com Xiayu Zheng xzheng@marvell. com Christian Berger crberger@marvell. com Niranjan Grandhe ngrandhe@marvell. com Hui-Ling Lou Submission hlou@marvell. com Slide 3

doc. : IEEE 802. 11 -16/0414 r 1 Authors (continued) Name Affiliation 5775 Morehouse Dr. San Diego, CA, USA Alice Chen Straatweg 66 -S Breukelen, 3621 BR Netherlands 5775 Morehouse Dr. San Diego, CA, USA Albert Van Zelst Alfred Asterjadhi 5775 Morehouse Dr. San Diego, CA, USA Arjun Bharadwaj Bin Tian Carlos Aldana George Cherian Gwendolyn Barriac Hemanth Sampath Lin Yang Menzo Wentink Naveen Kakani Raja Banerjea Richard Van Nee Submission Address Qualcomm 5775 Morehouse Dr. San Diego, CA, USA 1700 Technology Drive San Jose, CA 95110, USA 5775 Morehouse Dr. San Diego, CA, USA Straatweg 66 -S Breukelen, 3621 BR Netherlands 2100 Lakeside Boulevard Suite 475, Richardson TX 75082, USA 1060 Rincon Circle San Jose CA 95131, USA Straatweg 66 -S Breukelen, 3621 BR Netherlands Slide 4 Phone Email alicel@qti. qualcomm. com allert@qti. qualcomm. com aasterja@qti. qualcomm. com arjunb@qti. qualcomm. com btian@qti. qualcomm. com caldana@qca. qualcomm. com gcherian@qti. qualcomm. com gbarriac@qti. qualcomm. com hsampath@qti. qualcomm. com linyang@qti. qualcomm. com mwentink@qti. qualcomm. com nkakani@qti. qualcomm. com rajab@qit. qualcomm. com rvannee@qti. qualcomm. com

doc. : IEEE 802. 11 -16/0414 r 1 Authors (continued) Name Affiliation Rolf De Vegt Sameer Vermani Simone Merlin Tao Tian Tevfik Yucek VK Jones Youhan Kim Submission Qualcomm Address Phone Email 1700 Technology Drive San Jose, CA 95110, USA 5775 Morehouse Dr. San Diego, CA, USA svverman@qti. qualcomm. com 5775 Morehouse Dr. San Diego, CA, USA ttian@qti. qualcomm. com 1700 Technology Drive San Jose, CA 95110, USA Slide 5 rolfv@qca. qualcomm. com smerlin@qti. qualcomm. com tyucek@qca. qualcomm. com vkjones@qca. qualcomm. com youhank@qca. qualcomm. com

doc. : IEEE 802. 11 -16/0414 r 1 Authors (continued) Name Affiliation Address Phone Peter Loc peterloc@iwirelesstech. com Le Liu Jun Luo Yingpei Lin Jiyong Pang Zhigang Rob Sun David X. Yang Yunsong Yang Junghoon Suh Jiayin Zhang Edward Au Teyan Chen Yunbo Li Submission Email Huawei F 1 -17, Huawei Base, Bantian, Shenzhen 5 B-N 8, No. 2222 Xinjinqiao Road, Pudong, Shanghai 10180 Telesis Court, Suite 365, San Diego, CA 92121 NA 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada F 1 -17, Huawei Base, Bantian, Shenzhen 10180 Telesis Court, Suite 365, San Diego, CA 92121 NA 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada 5 B-N 8, No. 2222 Xinjinqiao Road, Pudong, Shanghai 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada F 1 -17, Huawei Base, Bantian, Shenzhen Slide 6 +86 -18601656691 liule@huawei. com jun. l@huawei. com +86 -18665891036 Roy. luoyi@huawei. com linyingpei@huawei. com pangjiyong@huawei. com zhigang. rong@huawei. com Rob. Sun@huawei. com david. yangxun@huawei. com yangyunsong@huawei. com Junghoon. Suh@huawei. com +86 -18601656691 zhangjiayin@huawei. com edward. ks. au@huawei. com chenteyan@huawei. com liyunbo@huawei. com

doc. : IEEE 802. 11 -16/0414 r 1 Authors (continued) Name Affiliation Address Phone Email Jinmin Kim Jinmin 1230. kim@lge. com Kiseon Ryu kiseon. ryu@lge. com Jinyoung Chun jiny. chun@lge. com Jinsoo Choi js. choi@lge. com Jeongki Kim Dongguk Lim LG Electronics 19, Yangjae-daero 11 gil, Seocho-gu, Seoul 137130, Korea jeongki. kim@lge. com dongguk. lim@lge. com Suhwook Kim suhwook. kim@lge. com Eunsung Park esung. park@lge. com Jay. H Park Hyunh. park@lge. com Han. Gyu Cho hg. cho@lge. com Thomas Derham Orange #9 Wuxingduan, Xifeng Rd. , Xi'an, China Bo Sun Kaiying Lv Yonggang Fang Ke Yao Weimin Xing Brian Hart Pooya Monajemi Submission thomas. derham@orange. com ZTE Cisco Systems 170 W Tasman Dr, San Jose, CA 95134 Slide 7 sun. bo 1@zte. com. cn lv. kaiying@zte. com. cn yfang@ztetx. com yao. ke 5@zte. com. cn xing. weimin@zte. com. cn brianh@cisco. com pmonajem@cisco. com

doc. : IEEE 802. 11 -16/0414 r 1 Authors (continued) Name Affiliation Address Phone Email Samsung Innovation Park, Cambridge CB 4 0 DS (U. K. ) Maetan 3 -dong; Yongtong-Gu Suwon; South Korea 1301, E. Lookout Dr, Richardson TX 75070 Innovation Park, Cambridge CB 4 0 DS (U. K. ) 1301, E. Lookout Dr, Richardson TX 75070 Maetan 3 -dong; Yongtong-Gu Suwon; South Korea +44 1223 434633 f. tong@samsung. com +82 -31 -279 -9028 hyunjeong. kang@samsung. com (972) 761 7437 k. josiam@samsung. com +44 1223 434600 m. rison@samsung. com (972) 761 7470 rakesh. taori@samsung. com +82 -10 -8864 -1751 s 29. chang@samsung. com Yasushi Takatori +81 46 859 3135 takatori. yasushi@lab. ntt. co. jp Yasuhiko Inoue +81 46 859 5097 inoue. yasuhiko@lab. ntt. co. jp +81 46 859 5107 Shinohara. shoko@lab. ntt. co. jp +81 46 859 3494 asai. yusuke@lab. ntt. co. jp Koichi Ishihara +81 46 859 4233 ishihara. koichi@lab. ntt. co. jp Junichi Iwatani +81 46 859 4222 Iwatani. junichi@lab. ntt. co. jp +81 46 840 3759 yamadaakira@nttdocomo. com Fei Tong Hyunjeong Kaushik Josiam Mark Rison Rakesh Taori Sanghyun Chang Shoko Shinohara Yusuke Asai Akira Yamada Submission NTT DOCOMO 1 -1 Hikari-no-oka, Yokosuka, Kanagawa 239 -0847 Japan 3 -6, Hikarinooka, Yokosuka-shi, Kanagawa, 239 -8536, Japan Slide 8

doc. : IEEE 802. 11 -16/0414 r 1 Authors (continued) Name Affiliation Address Phone Email Masahito Mori Masahito. Mori@jp. sony. com Yusuke Tanaka Yusuke. C. Tanaka@jp. sony. com Yuichi Morioka Yuichi. Morioka@jp. sony. com Sony Corp. Kazuyuki Sakoda Kazuyuki. Sakoda@am. sony. com William Carney William. Carney@am. sony. com 9008 Research Dr, Irvine, CA 92618 Minho Cheong +1 -949 -390 -7146 minho. cheong@newracom. com Reza Hedayat reza. hedayat@newracom. com Young Hoon Kwon younghoon. kwon@newracom. com Newracom, Inc. Yongho Seok yongho. seok@newracom. com Daewon Lee daewon. lee@newracom. com Yujin Noh yujin. noh@newracom. com Sigurd Schelstraete Quantenna 3450 W. Warren Ave, Fremont, CA 94538 hwang@quanetnna. com Huizhao Wang Submission Sigurd@quantenna. com Slide 9

doc. : IEEE 802. 11 -16/0414 r 1 11 ax SFD Text for Adaptive CCA and Transmit Power Control • SFD text: “An 11 ax STA regards a valid OBSS PPDU as not having been received at all (e. g. , should not update its NAV), except that the medium condition shall indicate BUSY during the period of time that is taken by the receiving STA to validate that the PPDU is from an Inter-BSS, but not longer than the time indicated as the length of the PPDU payload if the RXPWR of the received PPDU is below the OBSS_PD threshold and TBD conditions are met, noting that the OBSS_PD threshold is accompanied by a TXPWR value and a reduction in the TXPWR may be accompanied by an TBD increase in the OBSS_PD threshold value. ” • The spec text does not specify the TBD conditions and TBD increase in the OBSS_PD threshold Submission Mediatek Slide 10

doc. : IEEE 802. 11 -16/0414 r 1 ED Threshold Adjustment • There are many IEEE contributions (70+ and counting) on the subject of adaptive CCA. Extensive simulation has been done (see, e. g. , Ref 15, Sony’s simulation) • 3 GPP LAA also adopted an ED threshold adaptation (lower transmit power higher ED threshold) in the presence of other technologies • 11 ax should adopt similar adaptation rules for fair co-existence with 3 GPP LAA and among. 11 networks. . Submission Mediatek Slide 11

doc. : IEEE 802. 11 -16/0414 r 1 Adjustment Rule for OBSS_PD • • Preserves fairness for the lower power devices TX_PWRref can be a TBD level (preferred value is 23 d. Bm) Class A: TX_PWR=transmit power Class B: TX_PWR=transmit power+TBD d. B Submission Mediatek Slide 12

doc. : IEEE 802. 11 -16/0414 r 1 Adjustment Rule for OBSS_PD Linear Adjustment Range OBSS_PD -62 d. Bm OBSS_PDmax LAA -72 d. Bm OBSS_Pdmin=-74 d. Bm Legacy -82 d. Bm OBSS_Pdmin=-82 d. Bm TX_PWR Submission 23 d. Bm PWRref

doc. : IEEE 802. 11 -16/0414 r 1 Straw Poll 1 • Do you support to replace the text in 5. 1 of SFD P 35 L 1“and a reduction in the TXPWR may be accompanied by an TBD increase in the OBSS_PD threshold value" with the “following adjustment rules: Submission Mediatek Slide 14

doc. : IEEE 802. 11 -16/0414 r 1 Reference [1] DCN 14 -1187 r 1 “The Effect of Preamble Error Model on MAC Simulator”, Po-Kai Huang, Intel [2] DCN 15 -367 r 0 “OBSS preamble detection”, Gwen Barriac , Qualcomm [3] DCN 14 -637 “Spatial Reuse and Coexistence with Legacy Devices” James Wang, Mediatek [4] Densi. Fi “Spatial-Reuse Prioritized Channel Access Schemes “, Jianhan Liu, Mediatek [5] IEEE 802. 11 ah D 4. 0 Clause 9. 50. 4 P 317 L 43 (SR EDCAF procedure) [6] Densi. Fi “Intel Spatial Reuse for close links with PHY signaling” Po-Kai Huang [7] DCN 14 -0082 r 1 “Improved Spatial Reuse Feasibility – Part I” Ron Porat, Broadcom [8] DCN 14 -1224 “Link Aware CCA” Brian Hart, Cisco [9]DCN 14 -637 “Spatial Reuse and Coexistence with Legacy Devices” James Wang, Mediatek [10] DCN 14 -1207 r 1 “OBSS reuse mechanism which preserves fairness” Imad Jamil, Orange [11] DCN 14 -1199 r 1 “CCA Study in Residential Scenario - Part 2” Gwen Barriac, Qualcomm [12] DCN 14 -846 r 0 “CCA Study in Residential Scenario”, Gwen Barriac, Qualcomm [13] DCN 14 -1448 r 2 “Considerations for Adaptive CCA” Reza Hedayat, Newracom [14] DCN 15 -588 r 0 “CCA Revisited” Amin Jafarian, Newracom [15[ DCN 15/1045 r 0 Dynamic CCA control and TPC Simulation Results with SS 1~SS 3, Takeshi Itagaki, Sony Submission Slide 15 Mediatek