1. SR Fields Clarification
July, 2016
SR Fields Clarification
Date:
Authors:
Name
Affiliation
Address
Phone
Ron Porat
Broadcom
Sriram Venkateswaran
Matthew Fischer
Zhou Lan
Leo Montreuil
Andrew Blanksby
Vinko Erceg
Mingyue Ji
Ron Porat, Broadcom, et. al.

2. Authors (continued) July, 2016 Alice Chen Albert Van Zelst
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
Ron Porat, Broadcom, et. al.

3. Authors (continued) July, 2016 Rolf De Vegt Sameer Vermani Qualcomm
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
Ron Porat, Broadcom, et. al.

4. 2111 NE 25th Ave, Hillsboro OR 97124, USA
July, 2016
Authors (continued)
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
Ron Porat, Broadcom, et. al.

5. Authors (continued) July, 2016 Hongyuan Zhang Marvell
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
Ron Porat, Broadcom, et. al.

6. Authors (continued) July, 2016 Jianhan Liu Mediatek USA
Name
Affiliation
Address
Phone
Jianhan Liu
Mediatek
USA
2860 Junction Ave, San Jose, CA 95134, USA
Thomas Pare
ChaoChun Wang
James Wang
Tianyu Wu
Russell Huang
James Yee
No. 1 Dusing 1st Road, Hsinchu, Taiwan  
Alan Jauh
Frank Hsu
Joonsuk Kim
Apple
Aon Mujtaba  
Guoqing Li
Eric Wong
Chris Hartman
Ron Porat, Broadcom, et. al.

7. Authors (continued) July, 2016 David X. Yang Jiayin Zhang Jun Luo
Name
Affiliation
Address
Phone
David X. Yang
Huawei
F1-17, Huawei Base, Bantian, Shenzhen
Jiayin Zhang
5B-N8, No.2222 Xinjinqiao Road, Pudong, Shanghai
Jun Luo
Yi Luo
Yingpei Lin
Jiyong Pang
Zhigang Rong
10180 Telesis Court, Suite 365, San Diego, CA  NA
Jian Yu
Ming Gan
Yunsong Yang
Junghoon Suh
303 Terry Fox, Suite 400 Kanata, Ottawa, Canada
Peter Loc
Edward Au
Teyan Chen
Yunbo Li
Ron Porat, Broadcom, et. al.

8. Authors (continued) July, 2016 Jinmin Kim LG Electronics
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
Bo Sun
ZTE
#9 Wuxingduan, Xifeng Rd., Xi'an, China
Kaiying Lv
Yonggang Fang
Ke Yao
Weimin Xing
Brian Hart
Cisco Systems
170 W Tasman Dr, San Jose, CA 95134
Pooya Monajemi
Ron Porat, Broadcom, et. al.

9. Authors (continued) July, 2016 Fei Tong Samsung Hyunjeong Kang
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
 3759
Ron Porat, Broadcom, et. al.

10. Authors (continued) July, 2016 Ron Porat, Broadcom, et. al. Name
Affiliation
Address
Phone
Masahito Mori
Sony Corp.
Yusuke Tanaka
Yuichi Morioka
Kazuyuki Sakoda
William Carney
Tomoko Adachi
Toshiba
Narendar Madhavan
Kentaro Taniguchi
Toshihisa Nabetani
Tsuguhide Aoki
Koji Horisaki
David Halls
Filippo Tosato
Zubeir Bocus
Fengming Cao
Parag Kulkarni
Ron Porat, Broadcom, et. al.

11. Authors (continued) July, 2016 Ron Porat, Broadcom, et. al.
Minho Cheong
Newracom, Inc.
9008 Research Dr, Irvine, CA 92618
Reza Hedayat
Young Hoon Kwon
Yongho Seok
Daewon Lee
Yujin Noh
Sigurd Schelstraete
Quantenna
3450 W. Warren Ave, Fremont, CA 94538
Huizhao Wang
Ron Porat, Broadcom, et. al.

12. July, 2016
Outline
Currently in the spec framework the following 4 SR fields are defined for HE Trigger based PPDU
For HE trigger-based PPDU, in HE SIG-A, 4 SR fields are signaled:
For 20MHz one SR field corresponding to entire 20MHz (other 3 fields indicate identical values)
For 40MHz two SR fields for each 20MHz (other 2 fields indicate identical values)
For 80MHz four SR fields for each 20MHz
For 160MHz four SR fields for each 40MHz
The exact location of each 20MHz for 80MHz BW is TBD
[May 2016, see [28]]
We clarify the location of each 20MHz in 80MHz BW
Ron Porat, Broadcom, et. al.

13. July, 2016
Discussion
It is advantageous to allow SR when two 80MHz BSS are overlapping (so the 242RU are aligned) and when a 20MHz or 40MHz BSS overlaps with a 80MHz BSS. This way spatial reuse is allowed across all OBSS BW configurations
In addition a 20MHz BSS interferes less with each of the 242RU locations of 40MHz or 80MHz BSS due to tone location which is skewed relative to each other. Similarly with 40MHz interference into 484RU in 80MHz.
Hence we propose to make the following clarification:
Each of the four SR fields in an 80MHz HE_TRIG PPDU corresponds to a 20MHz sub-band and the fields are arranged in increasing order of frequency. For an OFDMA transmission of a given BW, each of the SR fields that corresponds to a 20MHz sub-band is also applicable to the 242RU  which is most closely aligned in frequency (in the tone-plan of that BW) with the aforementioned 20MHz sub-band. The correspondence from an SR field to a 242RU also holds for any RU within the 242RU. The above also implies that a 20MHz OBSS STA uses the SR field corresponding to its 20MHz channel, a 40MHz OBSS STA located on the lower frequency half of the 80MHz BSS uses SR Field 1, SR Field 2 values and a 40MHz OBSS STA located on the upper frequency half of the 80MHz BSS uses SR Field 3, SR Field 4 values
Ron Porat, Broadcom, et. al.

14. Proposed Change to Draft 0.2
July, 2016
Proposed Change to Draft 0.2
In table add the following description of the SR field:
The 4 SR fields are arranged in increasing order of frequency and correspond to :
For 20MHz one SR field corresponding to entire 20MHz (other 3 fields indicate identical values)
For 40MHz two SR fields for each 20MHz subband (other 2 fields indicate identical values)
For 80MHz four SR fields for each 20MHz subband
For an OFDMA transmission of a given BW, each of the SR fields that corresponds to a 20MHz sub-band is also applicable to the 242RU  which is most closely aligned in frequency (in the tone-plan of that BW) with the aforementioned 20MHz sub-band. The correspondence from an SR field to a 242RU also holds for any RU within the 242RU. The above also implies that a 20MHz OBSS STA uses the SR field corresponding to its 20MHz channel, a 40MHz OBSS STA located on the lower frequency half of the 80MHz BSS uses SR Field 1, SR Field 2 values and a 40MHz OBSS STA located on the upper frequency half of the 80MHz BSS uses SR Field 3, SR Field 4 values”
For 160MHz four SR fields for each 40MHz
Ron Porat, Broadcom, et. al.

15. SP #1 July, 2016 Do you support the proposed addition to table 26-17?
Yes No
ABS
Ron Porat, Broadcom, et. al.