1. TA address field in Trigger Frame
Date:
Authors:
Name
Affiliation
Address
Phone
Kaiying Lv
ZTE
#9 Wuxingduan, Xifeng Rd., Xi'an, China
Weimin Xing
Bo Sun
Yonggang Fang
Ke Yao
ZTE et. al.

2. Authors (continued) Liwen Chu Marvell
Name
Affiliation
Address
Phone
Liwen Chu
Marvell
5488 Marvell Lane, Santa Clara, CA, 95054
Jinjing Jiang
Lei Wang
Hongyuan Zhang
Yakun Sun
Yan Zhang
Rui Cao
Bo Yu
Sudhir Srinivasa
Saga Tamhane
Mao Yu
Edward Au
Hui-Ling Lou
ZTE et. al.

3. Authors (continued) Albert Van Zelst Alfred Asterjadhi Arjun Bharadwaj
Name
Affiliation
Address
Phone
Albert Van Zelst
Qualcomm
Straatweg 66-S Breukelen, 3621 BR Netherlands
Alfred Asterjadhi
5775 Morehouse Dr. San Diego, CA, USA
Arjun Bharadwaj
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
ZTE et. al.

4. 2111 NE 25th Ave, Hillsboro OR 97124, USA
Authors (continued)
Name
Affiliation
Address
Phone
Robert Stacey
Intel
2111 NE 25th Ave, Hillsboro OR 97124, USA     
Eldad Perahia
Shahrnaz Azizi
Po-Kai Huang
Qinghua Li
Xiaogang Chen
Chitto Ghosh
Laurent cariou
Rongzhen Yang
Ron Porat
Broadcom
Matthew Fischer
Sriram Venkateswaran
Andrew Blanksby
Matthias Korb
Tu Nguyen
Vinko Erceg
ZTE et. al.

5. 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
Russell Huang
Joonsuk Kim
Apple
Aon Mujtaba  
Guoqing Li
Eric Wong
Chris Hartman
ZTE et. al.

6. Authors (continued) Phillip Barber Peter Loc Le Liu Jun Luo Huawei
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
ZTE et. al.

7. 19, Yangjae-daero 11gil, Seocho-gu, Seoul 137-130, Korea
Authors (continued)
Name
Affiliation
Address
Phone
Hyeyoung Choi
LG Electronics
19, Yangjae-daero 11gil, Seocho-gu, Seoul , Korea
Kiseon Ryu
Jinyoung Chun
Jinsoo Choi
Jeongki Kim
Giwon Park
Dongguk Lim
Suhwook Kim
Eunsung Park
HanGyu Cho
Thomas Derham
Orange
Brian Hart
Cisco Systems
170 W Tasman Dr, San Jose, CA 95134
Pooya Monajemi
ZTE et. al.

8. 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
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
ZTE et. al.

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

10. Recap of multiple BSSID set
Multiple virtual BSSs supported by one AP device can be achieved through the multiple BSSID capability.
The Multiple BSSID capability enables the advertisement of information for BSSIDs using a single Beacon or Probe Response frame instead of multiple Beacon and Probe Response frames, each corresponding to a
single BSSID. The Multiple BSSID capability also enables the indication of buffered frames for multiple BSSIDs using a single TIM element in a single beacon.
Multiple BSSID element format in beacon frame:
The Max BSSID Indicator field contains a value n, where 2n is the maximum number of BSSIDs in the multiple BSSID set.
ZTE et. al.

11. Single BSS and Multiple BSS
Month Year
Doc Title
Single BSS and Multiple BSS
Multiple BSSID element defines virtual BSSs and respective virtual APs that
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.
Each specific BSSID defined above corresponds to one single BSS
AP should be able to trigger STAs associated with a single virtual BSS for UL MU transmission or random access.
AP should also be able to trigger STAs associated with multiple virtual BSSs for UL MU transmission or random access.
ZTE et. al.
John Doe, Some Company

12. Trigger frame for single BSS and multiple BSSs
Month Year
Doc Title
Trigger frame for single BSS and multiple BSSs
Trigger frame format in the spec framework:
A1 is RA , A2 is TA ,and A1 is optional.
When a Trigger frame is sent to STAs of a single virtual BSS, A2 should be set to the associated BSSID.
STAs triggered by the AP filter the trigger frame based on its own BSSID.
When a Trigger frame is sent to STAs of multiple virtual BSSs, A2 should be set to a common BSSID known by all STAs.
STAs triggered by the AP filter the trigger frame based on the common BSSID. FC
Duration
(A1) A2
Common Info
Per User Info 1
Per User Info N
FCS 2
TBD 6 4
ZTE et. al.
John Doe, Some Company

13. TA setting in Trigger frame for multiple BSSs
Month Year
Doc Title
TA setting in Trigger frame for multiple BSSs
Option 1: REF_BSSID
Option 1a: REF_BSSID overloading
Using REF_BSSID as the TA of the trigger frame to indicate it is a trigger for STAs belonging to all virtual BSSs including the reference BSS.
Pros: REF_BSSID is already used as the TA in Beacon frames, which will be recognized by all STAs. No need to signal the value that represents all BSSs.
Cons: REF_BSSID is overloaded.
Option 1b: signaling TA
Using signaling TA as the TA of the trigger frame to indicate it is a trigger for STAs belonging to reference BSS and other virtual BSSs.
Setting Individual/Group bit of the REF_BSSID to 1 as a signaling TA.
Pros: No BSSID is overloaded
Option 2: BSSID_A
Using BSSID_A as the TA of the trigger frame to indicate it is a trigger for STAs belonging to reference BSS and other virtual BSSs.
Pros: No need to signal the value that represents all BSSs. If fewer than 2n virtual BSSs are needed, then BSSID_A can be left unused, leaving no overloading of the value representing all BSSs.
Cons: If all 2n virtual BSSs are needed, then all BSSs value is overloaded.
ZTE et. al.
John Doe, Some Company

14. Trigger frame for multiple BSSs is discussed:
Month Year
Doc Title
Summary
Trigger frame for multiple BSSs is discussed:
A common address in A2 field of Trigger frame should be used for multiple BSSs
TA setting in a trigger frame for all BSSs in a multiple BSSID set and 3 options for TA setting are analyzed.
ZTE et. al.
John Doe, Some Company

15. References
[1] / ax-spec-framework
ZTE et. al.

16. Straw Poll 1 Do you agree to add the following to the SFD?
A trigger frame that addresses STAs in multiple BSSs corresponding to a multiple BSS set shall use a common address TBD in the A2 field
ZTE et. al.