1. ETSI BRAN Update (IEEE 802.11 Co-Existence Workshop)
David Boldy
Vienna, July 2019

2. Agenda
Status of 6GHz in Europe
6GHz work within ETSI
5GHz update

3. 6 GHz European Regulatory and Standardization Time Line
Draft Report A approved by WG FM
WI on ECC Decision
June
SE45 Sharing Study Under Way
ECC Report approved
May
Final Report A Draft Report B
March
EC Decision
ECC Decision
EC Mandate
Study
FM57 & SE45
created
SE45 Sharing Study Complete
April
Draft Report A from CEPT to EC
July
Final Report B from CEPT to EC
July
ECC WI
MHz
2017
2018
2019
2020
2021 +
ETSI SRDoc
TR WI adopted
ETSI SRDoc TR
published
WI for a 6 GHz Harmonized EN launched in TC BRAN
ETSI 6 GHz Harmonized EN published in OJEU
Current date

4. 6GHz Work Within ETSI ETSI BRAN –Technology Neutral
Systems Reference Document SRDOC TR ( MHz) - published
Technical report TR ( MHz) - published
ETSI MSG TFES - IMT
Technical Report TR ( MHz) – Final draft for approval
ETSI BRAN - Work Item for 6GHz Harmonized Standard

5. Status of 6GHz in Europe SE45 FM57 WGFM#94
ECC Report 302 approved for publication by WGSE
SE45 kept open until FM57 work is complete
FM57
– WGFM #94 endorsed Draft CEPT Report A
Provided to ECC for Public Consultation
Complementary Studies per Task 2 of EC Mandate (LS to WGSE)
VLP outdoor impact on FS short term interference
CEPT Report B – Timeline July 2020
WGFM#94
New WI (FM57_04) adopted to develop ECC Decision on 6GHz RLAN

6. Work Item – Harmonized Standard for 6GHz RLANs

7. ETSI EN Approval Process (ENAP)
HAS Consultant Approval
Oct 2019
BRAN#103
Oct 2019
BRAN#103
Dependent upon
ETSI and CEPT timelines
CEPT Report B sent to EC
(June 2020??)
June 2019

8. 6GHz Work Program

9. 5GHz Update

10. Brief History of Adaptivity (Channel Access)
Nov 2011: v1.6.1 “Adaptivity” requirements first introduced replacing the “Medium Access Protocol” requirement
Jan 2015: V1.8.1 Options A and B, plus IEEE Option with test
BRAN#81 – Agreement to replace A/B options with a single option in next RED version v Technology specific reference should not go in the next version.
Work item REN/BRAN scope
………... (4) To improve Adaptivity for Load Based Equipment by replacing the current 2 alternative options with a single solution that provides equal (spectrum) access to different technologies.  
June 2016: BRAN#88 Coexistence sessions complete in draft v0.0.9 and future input moved to drafting sessions.
Temporary declaration option included for some load based adaptivity tests
March 2017: BRAN#92 Final draft v approved by TC BRAN. Published as RED Version v2.1.1 May 2017
Next version to consider:
Single ED threshold limit, general review of adaptivity
Guidance of the European Commission to disallow manufacturer declarations to achieve compliance
Latest draft:
Removal of exception to declare compliance instead of testing.
More generic text for ED to allow option conditioned on use of PD, as well as an option for ED only, for all technologies
IEEE preamble detection test must be included if using PD

11. Lessons learned Agreement is possible even with contentious issues
Meeting schedules often made LS communication inefficient
Contention
Agreement
ED Threshold
2 options available (ED Only or ED/PD) for any technology (PD with an a preamble, see latest draft)
Channelization
Same 20MHz Nominal Center frequencies (200kHz deviation allowed)
Maximum COT
Tables 7 and 8
Paused COT(re: LAA)
Tables 7 (Notes 1/2) and 8 (Note 1)
Exponential Back off, CW size
Simulations
EN v2.1.1

12. Status of 5GHz (EN v2.2.1)
Outstanding issues for adaptivity as of close of BRAN#102
Paused COT (Re: NR-U)
No LBT/Short LBT usage
Delayed ACKs and Broadcast Transmissions
Defining Test for IEEE preamble
Expected Final draft approval: BRAN#104
What can we do better for 6GHz?

13. Next related BRAN meetings
Relative EDT Levels GoTo Meeting
1st August 2019, 15:00-18:00 CET
Preamble Detect testing investigation
Hosted by Rohde&Schwarz (Munich): 20th August 2019
BRAN#103
7-10 October 2019
BRAN#104
2-5 December 2019
Participation / Proposals / Contributions welcome!!

14. Thank You