1. Broadcast STAID in HE-SIG-B
Date:
Authors:
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
Bo Yu
Saga Tamhane
Mao Yu
Xiayu Zheng
Christian Berger
Niranjan Grandhe
Hui-Ling Lou
Marvell, ZTE, et. al.

2. #9 Wuxingduan, Xifeng Rd., Xi'an, China
Authors (continued)
Name
Affiliation
Address
Phone
Bo Sun
ZTE
#9 Wuxingduan, Xifeng Rd., Xi'an, China
Kaiying Lv
Yonggang Fang
Ke Yao
Weimin Xing
Marvell, ZTE, et. al.

3. 2111 NE 25th Ave, Hillsboro OR 97124, USA
Authors (continued)
Name
Affiliation
Address
Phone
Ron Porat
Broadcom
Sriram Venkateswaran
Matthew Fischer
Leo Montreuil
Andrew Blanksby
Vinko Erceg
Robert Stacey
Intel
2111 NE 25th Ave, Hillsboro OR 97124, USA     
Shahrnaz Azizi
Po-Kai Huang
Qinghua Li
Xiaogang Chen
Chitto Ghosh
Laurent Cariou
Yaron Alpert
Assaf Gurevitz
Ilan Sutskover
Marvell, ZTE, et. al.

4. Authors (continued) Alice Chen Albert Van Zelst Alfred Asterjadhi
Name
Affiliation
Address
Phone
Alice Chen
Qualcomm
5775 Morehouse Dr. San Diego, CA, USA
Albert Van Zelst
Straatweg 66-S Breukelen, 3621 BR Netherlands
Alfred Asterjadhi
Arjun Bharadwaj
Bin Tian
Carlos Aldana
1700 Technology Drive San Jose, CA 95110, USA
George Cherian
Gwendolyn Barriac
Hemanth Sampath
Lin Yang
Menzo Wentink
Naveen Kakani
2100 Lakeside Boulevard Suite 475, Richardson TX 75082, USA
Raja Banerjea
1060 Rincon Circle San Jose CA 95131, USA
Richard Van Nee
Marvell, ZTE, et. al.

5. Authors (continued) Rolf De Vegt Sameer Vermani Qualcomm Simone Merlin
Name
Affiliation
Address
Phone
Rolf De Vegt
Qualcomm
1700 Technology Drive San Jose, CA 95110, USA
Sameer Vermani
5775 Morehouse Dr. San Diego, CA, USA
Simone Merlin
Tao Tian
Tevfik Yucek  
VK Jones
Youhan Kim
Marvell, ZTE, et. al.

6. Authors (continued) 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
Zhou Lan
Russell Huang
Joonsuk Kim
Apple
Aon Mujtaba  
Guoqing Li
Eric Wong
Chris Hartman
Marvell, ZTE, et. al.

7. Authors (continued) Peter Loc Le Liu Jun Luo Yi Luo Huawei Yingpei Lin
Name
Affiliation
Address
Phone
Peter Loc
Huawei
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
Junghoon Suh
Jiayin Zhang
Edward Au
Teyan Chen
Yunbo Li
Marvell, ZTE, et. al.

8. 19, Yangjae-daero 11gil, Seocho-gu, Seoul 137-130, Korea
Authors (continued)
Name
Affiliation
Address
Phone
Jinmin Kim
LG Electronics
19, Yangjae-daero 11gil, Seocho-gu, Seoul , Korea
Kiseon Ryu
Jinyoung Chun
Jinsoo Choi
Jeongki Kim
Dongguk Lim
Suhwook Kim
Eunsung Park
JayH Park
HanGyu Cho
Thomas Derham
Orange
Brian Hart
Cisco Systems
170 W Tasman Dr, San Jose, CA 95134
Pooya Monajemi
Marvell, ZTE, et. al.

9. Authors (continued) Fei Tong Hyunjeong Kang Samsung Kaushik Josiam
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
Shoko Shinohara
Yusuke Asai
Koichi Ishihara
Junichi Iwatani
Akira Yamada
NTT DOCOMO
3-6, Hikarinooka, Yokosuka-shi, Kanagawa, , Japan
Fujio Watanabe
3240 Hillview Ave, Palo Alto, CA 94304
Haralabos Papadopoulos
Marvell, ZTE, et. al.

10. Authors (continued) Marvell, ZTE, et. al. Name Affiliation Address
Phone
Masahito Mori
Sony Corp.
Yusuke Tanaka
Yuichi Morioka
Kazuyuki Sakoda
William Carney
Marvell, ZTE, et. al.

11. 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.

12. 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

13. 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

14. 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
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.

15. 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

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

17. 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.