ETSI BRAN Update (IEEE Co-Existence Workshop)

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Presentation transcript:

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

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

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 302 approved May Final Report A Draft Report B March EC Decision ECC Decision EC Mandate 5925-6425 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 5925-6425 MHz 2017 2018 2019 2020 2021 + ETSI SRDoc TR 103 524 WI adopted ETSI SRDoc TR 103 524 published WI for a 6 GHz Harmonized EN launched in TC BRAN ETSI 6 GHz Harmonized EN published in OJEU Current date

6GHz Work Within ETSI ETSI BRAN –Technology Neutral Systems Reference Document SRDOC TR 103 524 (5925-6725MHz) - published Technical report TR 103 631 (6725-7125MHz) - published ETSI MSG TFES - IMT Technical Report TR 103 612 (6425-7125MHz) – Final draft for approval ETSI BRAN - Work Item for 6GHz Harmonized Standard

Status of 6GHz in Europe SE45 FM57 WGFM#94 2019-05-31 - ECC Report 302 approved for publication by WGSE SE45 kept open until FM57 work is complete FM57 2019-06-06 – 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 2019-06-05 - New WI (FM57_04) adopted to develop ECC Decision on 6GHz RLAN

Work Item – Harmonized Standard for 6GHz RLANs

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

6GHz Work Program

5GHz Update

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 v2.1.1. Technology specific reference should not go in the next version. Work item REN/BRAN-0060015 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 v2.0.11 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 802.11 preamble detection test must be included if using PD

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 802.11a 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 301 893 v2.1.1

Status of 5GHz (EN 301 893 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?

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!!

Thank You