Broadcast STAID in HE-SIG-B Date: 2015-11-06 Authors: Name Affiliation Address Phone Email Hongyuan Zhang Marvell 5488 Marvell Lane, Santa Clara, CA, 95054 408-222-2500 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 ruicao@marvell.com Sudhir Srinivasa sudhirs@marvell.com Bo Yu boyu@marvell.com Saga Tamhane 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 hlou@marvell.com Marvell, ZTE, et. al.

#9 Wuxingduan, Xifeng Rd., Xi'an, China Authors (continued) Name Affiliation Address Phone Email Bo Sun ZTE #9 Wuxingduan, Xifeng Rd., Xi'an, China   sun.bo1@zte.com.cn Kaiying Lv lv.kaiying@zte.com.cn Yonggang Fang yfang@ztetx.com Ke Yao yao.ke5@zte.com.cn Weimin Xing xing.weimin@zte.com.cn Marvell, ZTE, et. al.

2111 NE 25th Ave, Hillsboro OR 97124, USA Authors (continued) Name Affiliation Address Phone Email Ron Porat Broadcom   rporat@broadcom.com Sriram Venkateswaran mfischer@broadcom.com Matthew Fischer Leo Montreuil Andrew Blanksby Vinko Erceg Robert Stacey Intel 2111 NE 25th Ave, Hillsboro OR 97124, USA     +1-503-724-893   robert.stacey@intel.com Shahrnaz Azizi shahrnaz.azizi@intel.com Po-Kai Huang po-kai.huang@intel.com Qinghua Li quinghua.li@intel.com Xiaogang Chen 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 ilan.sutskover@intel.com Marvell, ZTE, et. al.

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

Authors (continued) Rolf De Vegt Sameer Vermani Qualcomm Simone Merlin Name Affiliation Address Phone Email Rolf De Vegt Qualcomm 1700 Technology Drive San Jose, CA 95110, USA   rolfv@qca.qualcomm.com Sameer Vermani 5775 Morehouse Dr. San Diego, CA, USA svverman@qti.qualcomm.com Simone Merlin smerlin@qti.qualcomm.com Tao Tian ttian@qti.qualcomm.com Tevfik Yucek   tyucek@qca.qualcomm.com VK Jones vkjones@qca.qualcomm.com Youhan Kim youhank@qca.qualcomm.com Marvell, ZTE, et. al.

Authors (continued) James Yee Mediatek Name Affiliation Address Phone Email James Yee Mediatek No. 1 Dusing 1st Road, Hsinchu, Taiwan +886-3-567-0766  james.yee@mediatek.com Alan Jauh   alan.jauh@mediatek.com Chingwa Hu chinghwa.yu@mediatek.com Frank Hsu frank.hsu@mediatek.com Thomas Pare USA 2860 Junction Ave, San Jose, CA 95134, USA +1-408-526-1899 thomas.pare@mediatek.com ChaoChun Wang chaochun.wang@mediatek.com James Wang james.wang@mediatek.com Jianhan Liu Jianhan.Liu@mediatek.com Tianyu Wu tianyu.wu@mediatek.com Zhou Lan Zhou.lan@mediaTek.com Russell Huang russell.huang@mediatek.com Joonsuk Kim Apple    joonsuk@apple.com Aon Mujtaba   mujtaba@apple.com Guoqing Li guoqing_li@apple.com Eric Wong ericwong@apple.com  Chris Hartman chartman@apple.com Marvell, ZTE, et. al.

Authors (continued) Peter Loc Le Liu Jun Luo Yi Luo Huawei Yingpei Lin Name Affiliation Address Phone Email Peter Loc Huawei   peterloc@iwirelesstech.com Le Liu F1-17, Huawei Base, Bantian, Shenzhen +86-18601656691 liule@huawei.com Jun Luo 5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai jun.l@huawei.com Yi Luo +86-18665891036 Roy.luoyi@huawei.com Yingpei Lin linyingpei@huawei.com Jiyong Pang pangjiyong@huawei.com Zhigang Rong 10180 Telesis Court, Suite 365, San Diego, CA  92121 NA zhigang.rong@huawei.com Rob Sun 303 Terry Fox, Suite 400 Kanata, Ottawa, Canada Rob.Sun@huawei.com David X. Yang david.yangxun@huawei.com Yunsong Yang yangyunsong@huawei.com Junghoon Suh Junghoon.Suh@huawei.com Jiayin Zhang zhangjiayin@huawei.com Edward Au edward.ks.au@huawei.com Teyan Chen chenteyan@huawei.com Yunbo Li liyunbo@huawei.com Marvell, ZTE, et. al.

19, Yangjae-daero 11gil, Seocho-gu, Seoul 137-130, Korea Authors (continued) Name Affiliation Address Phone Email Jinmin Kim LG Electronics 19, Yangjae-daero 11gil, Seocho-gu, Seoul 137-130, Korea   Jinmin1230.kim@lge.com Kiseon Ryu kiseon.ryu@lge.com Jinyoung Chun jiny.chun@lge.com Jinsoo Choi js.choi@lge.com Jeongki Kim jeongki.kim@lge.com Dongguk Lim dongguk.lim@lge.com Suhwook Kim suhwook.kim@lge.com Eunsung Park esung.park@lge.com JayH Park Hyunh.park@lge.com HanGyu Cho hg.cho@lge.com Thomas Derham Orange thomas.derham@orange.com Brian Hart Cisco Systems 170 W Tasman Dr, San Jose, CA 95134   brianh@cisco.com Pooya Monajemi pmonajem@cisco.com Marvell, ZTE, et. al.

Authors (continued) Fei Tong Hyunjeong Kang Samsung Kaushik Josiam Name Affiliation Address Phone Email Fei Tong Samsung Innovation Park, Cambridge CB4 0DS (U.K.) +44 1223 434633 f.tong@samsung.com Hyunjeong Kang Maetan 3-dong; Yongtong-Gu Suwon; South Korea +82-31-279-9028 hyunjeong.kang@samsung.com Kaushik Josiam 1301, E. Lookout Dr, Richardson TX 75070 (972) 761 7437 k.josiam@samsung.com Mark Rison +44 1223 434600 m.rison@samsung.com Rakesh Taori (972) 761 7470 rakesh.taori@samsung.com Sanghyun Chang +82-10-8864-1751 s29.chang@samsung.com Yasushi Takatori NTT 1-1 Hikari-no-oka, Yokosuka, Kanagawa 239-0847 Japan   takatori.yasushi@lab.ntt.co.jp Yasuhiko Inoue inoue.yasuhiko@lab.ntt.co.jp Shoko Shinohara Shinohara.shoko@lab.ntt.co.jp Yusuke Asai asai.yusuke@lab.ntt.co.jp Koichi Ishihara ishihara.koichi@lab.ntt.co.jp Junichi Iwatani Iwatani.junichi@lab.ntt.co.jp Akira Yamada NTT DOCOMO 3-6, Hikarinooka, Yokosuka-shi, Kanagawa, 239-8536, Japan yamadaakira@nttdocomo.com Fujio Watanabe 3240 Hillview Ave, Palo Alto, CA 94304 watanabe@docomoinnovations.com Haralabos Papadopoulos hpapadopoulos@docomoinnovations.com Marvell, ZTE, et. al.

Authors (continued) Marvell, ZTE, et. al. Name Affiliation Address Phone Email Masahito Mori Sony Corp. Masahito.Mori@jp.sony.com Yusuke Tanaka YusukeC.Tanaka@jp.sony.com Yuichi Morioka Yuichi.Morioka@jp.sony.com Kazuyuki Sakoda Kazuyuki.Sakoda@am.sony.com William Carney William.Carney@am.sony.com Marvell, ZTE, et. al.

Recap of Broadcast Transmission in 11ax A multicast/broadcast data frame may transmitted in DL OFDMA. A broadcast Trigger frame may be transmitted in DL OFDMA. Per-STA information in HE-SIG-B defines RU’s owner for a specific STA which is identified by (Partial) AID (STAID) in Per-STA information. A RU used for broadcast transmission is called broadcast RU. However the method to identify the broadcast RU is not defined. Multicast Frame Legacy Preamble HE-STF/LTF HE-SIG-A HE-SIG-B Unicast Frame Unicast Frame Trigger STA6 A-MPDU to AP BlkAck Trigger BlkAck AP A-MPDU to STA4 STA4 A-MPDU to AP BlkAck AP A-MPDU to STA1 Trigger BlkAck STA1 A-MPDU to AP BlkAck AP A-MPDU to STA2 Trigger STA2 A-MPDU to AP BlkAck BlkAck Trigger STA5 A-MPDU to AP BlkAck AP A-MPDU to STA3 STA3 A-MPDU to AP BlkAck BlkAck Cascading Frame Exchange Marvell, ZTE, et. al.

Single BSS and Multiple BSS Month Year Doc Title Single BSS and Multiple BSS An AP device can have single BSS (one AP) or multiple BSS (virtual APs). Multiple BSSID element defines virtual BSSs (virtual APs) of an AP device that The Max BSSID Indicator field contains a value n, where 2n is the maximum number of BSSIDs in the multiple BSSID set The reference BSSID is the BSSID of the Beacon or Probe Response frame which carries Multiple BSSID element. The calculation of BSSIDs for Nontransmitted BSSID is BSSID(i) = BSSID_A | BSSID_B where BSSID_A is a BSSID with (48–n) MSBs equal to the (48–n) MSBs of the REF_BSSID and n LSBs equal to 0. BSSID_B is a BSSID with (48–n) MSBs equal to 0 and n LSBs equal to [(n LSBs of REF_BSSID) +i] mod 2n. Element ID Length Max BSSID indicator Nontransmitted BSSID Profile Octets: 1 variable Multiple BSSID element AP1 AP3 AP0 AP2 STA9 Max BSSID Indicator = 2 STA5 STA6 STA7 STA8 Marvell, ZTE, et. al. John Doe, Some Company

Broadcast STAID in HE-SIG-B in Single BSS Month Year Doc Title Broadcast STAID in HE-SIG-B in Single BSS In single BSS, AID 0 is not allocated to any STA. An AP allocates AID 1 to 2007 STAs associated with the AP. A STAID for broadcast RU can not be an AID that is allocated for any STA. AID 0 can be used as STAID for broadcast RU. Trigger STA6 A-MPDU to AP BlkAck AP A-MPDU to STA4 Trigger BlkAck STA4 A-MPDU to AP BlkAck AP A-MPDU to STA1 Trigger BlkAck STA1 A-MPDU to AP BlkAck AP A-MPDU to STA2 Trigger STA2 A-MPDU to AP BlkAck BlkAck Trigger STA5 A-MPDU to AP BlkAck AP A-MPDU to STA3 STA3 A-MPDU to AP BlkAck BlkAck Cascasing Frame Exchange Legacy Preamble HE-STF/LTF AP0 HE-SIG-A HE-SIG-B STA5 STA6 STA1 Common /info Per STA Info Per STA Info Per STA Info Per STA Info Per STA Info STA2 STA3 STA4 STAID 3 STAID 2 STAID 1 STAID 4 STAID 0 Marvell, ZTE, et al. John Doe, Some Company

Broadcast STAID in HE-SIG-B in Multiple BSSs In Multiple BSSID element where the Max BSSID Indicator field contains a value assigned to n (2n is the maximum number of BSSIDs in the multiple BSSID set): AID 0 to 2n -1 can be allocated to at most 2n virtual APs. AID 2n to 2007 can be used to allocated to STAs associated with the virtual APs. The following are possible broadcast cases with multiple BSSs: A broadcast Trigger or data frame may be addressed to all BSS of a AP device. An AID which is not one of 0 to 2n -1 will be selected as Broadcast STAID for broadcast to all BSSs of the AP device. The possible value can be 2n or 211 -1. A broadcast Trigger or data frame may be addressed to one virtual BSS of a AP device. AID i where i is not bigger than 2n -1 is used as broadcast STAID for broadcast to virtual BSSi of the AP device. TIM element 2n-1 2007 AID for virtual APs AID for STAs Slide 14 Marvell, ZTE, et. al.

Broadcast STAID in HE-SIG-B in Multiple BSSs (Cont’d) Month Year Doc Title Broadcast STAID in HE-SIG-B in Multiple BSSs (Cont’d) Trigger to multiple BSSs AP1 A-MPDU to STA9 Trigger AP2’s broadcast A-MPDU AP1 A-MPDU to STA6 Trigger Trigger AP0 A-MPDU to STA5 OFDMA TXOP Legacy Preamble HE-STF/LTF HE-SIG-A HE-SIG-B AP1 AP3 AP0 AP2 STA9 Max BSSID Indicator = 2 Common /info Per STA Info Per STA Info Per STA Info Per STA Info Per STA Info STAID 5 STAID 6 STAID 2 STAID 9 STAID TBD STA5 STA6 STA7 STA8 Marvell, ZTE, et al. John Doe, Some Company

References [1] 802.11-15/0132-09-00ax-spec-framework [2] 802.11-15/0877r2 Broadcast and Unicast in DL MU Marvell, ZTE, et al.

Straw Poll 1 Do you agree to add the following to the SFD? The STAID field that identifies the RU allocation in HE SIG-B for broadcast traffic in DL OFDMA PPDU shall be defined as following: 1, For single BSS AP, the STAID for Broadcast will be 0; 2, For Multiple BSS AP, the STAID for Broadcast to a specific BSS will follow the group addressed AID assignment in the TIM according to the existing Multi-BSSID TIM operation; 3, For Multiple BSS AP, the STAID for Broadcast to all BSSs of the AP will have a special STAID value reserved.   Marvell, ZTE, et al.