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September 2026 roundupPeriod scanned: 1 September – 1 October 20264 min listen

3GPP RAN#113 defers 6G migration options to December

Audio briefing

4 min

In this report
September brought concrete movement in both 6G architecture and Internet protocol work, but several of the consequential decisions remain open. 3GPP retained a migration baseline while deferring additional choices, as IETF drafts and a new routing RFC changed the implementation details engineers will need to track.
  1. 3GPP RAN#113 kept MRSS as the 6G migration baseline while moving further options to December.
  2. The ACME working group proposed CSR-free proof of possession for constrained and KEM-only clients.
  3. RFC 10041 separates OSPF link advertisement from default SPF reachability.

6G migration and architecture

3GPP RAN#113 defers 6G migration options to December

General
3GPP RAN#113 kept Multi-RAT Spectrum Sharing as the baseline for migration, but deferred decisions on additional options to RAN#114 in December. The architecture is therefore narrower than a blank-sheet 6G design, but not yet settled.
  • RP-262262 sends the split-bearer mechanism for dividing traffic across 5G and 6G radio legs back for further study.
  • The plenary also advanced a simplified dual-stack registration variant and a study of 6G-to-6G spectrum aggregation across non-collocated sites with backhaul latency up to 10 ms.
What this means for you
3GPP 6G migration work remains an architecture question rather than an implementation baseline beyond MRSS; the split-bearer, registration and aggregation choices are still moving targets for standards participants.

NGMN updates 6G architecture migration guidance

General
NGMN's version 1.0 guidance also places MRSS at the centre of 6G migration, while presenting dual connectivity and dual stack as alternatives requiring more evidence. It is guidance from an industry alliance, not a 3GPP commitment.
  • The document tests migration options against signalling overhead, reuse of existing 5G hardware, feasibility, performance and hardware requirements.
  • It leaves open whether the 6G core should evolve from the 5G core or be distinct, with 6G standalone as the target architecture.
What this means for you
The operator view is converging on the same MRSS starting point as RAN#113, while core evolution and evidence for alternatives remain unresolved parts of the 6G standards landscape.

one6G updates its technology overview

General
one6G WG2 published the sixth edition of its technology overview, updating the map of 6G enabling technologies and their open research questions. It is a reference document for the field, not a specification or deployment commitment.
  • The overview covers 12 areas, including terahertz frequencies, next-generation MIMO, integrated sensing and communications, and non-terrestrial networks.
  • It also frames network programmability, AI integration and human-robot collaboration as continuing use-case and research concerns.
What this means for you
The 6G technology map has been refreshed, but the document's open-problem framing confirms that these areas remain research inputs rather than settled requirements in the standards process.

IETF protocol changes

ACME draft adds optional proof of possession

General
The ACME working group introduced draft-ietf-acme-pop-00, an optional flow for proving possession of a private key without constructing a CSR. The draft broadens the protocol's issuance model, but remains an initial Internet-Draft.
  • The proposal adds a popKey field to newOrder and a dedicated proof-of-possession authorization challenge.
  • It targets KEM-only keys, constrained devices and certificate construction from order and profile data, while preserving the RFC 8555 CSR flow.
What this means for you
ACME implementations may eventually support certificate issuance where CSR construction is unsuitable, but the interoperability contract is not yet an RFC and the popKey exchange is still subject to working-group development.

RFC 10041 changes OSPF link advertisement semantics

General
RFC 10041 changes how OSPF can advertise a link that should not enter the default SPF calculation. The distinction matters most for non-default computations, including Flexible Algorithms.
  • LSLinkInfinity, 0xffff, marks a link unreachable, while MaxReachableLinkMetric, 0xfffe, preserves backward-compatible semantics.
  • The RFC updates the link-advertisement rules in RFCs 5443, 6987, 8379 and 8770, replacing the earlier MaxLinkMetric value.
What this means for you
OSPF implementations and specifications using non-default SPF computations now have a clarified metric distinction to account for, rather than treating all maximum metrics as the same signal.

HTTP draft proposes a 419 Purpose Declined status

General
The HTTP Working Group's draft-ietf-httpbis-pre-denied-01 proposes status 419, Purpose Declined, for a server refusal based on the declared purpose of a request. It is intended to make speculative-request refusals distinct from outages and authorization failures.
  • The motivating case is denial of prefetch or other speculative traffic that could impose negative performance effects.
  • The draft distinguishes the proposed response from 503 Service Unavailable and 403 Forbidden, and seeks Proposed Standard status.
What this means for you
HTTP clients and intermediaries may eventually gain a clearer protocol signal for purpose-based refusal, but status-code handling remains an active draft issue rather than settled HTTP behaviour.
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TopicSources foundIn this briefing
General336 stories
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3GPP and 6G standardsIETF protocol standards
Appendix: all 35 sources Iris scanned
General · 33
RAN#113: 6G migration postponed, NTN scope revised, 5G-Advan… — 3gpp-explorer.com · 2026-09-29News
RFCs organised by subject — rfc-editor.org · 2026-09-29News
Proceedings of the 4th Workshop on eBPF and Kernel Extension… — dl.acm.org · 2026-09-28Research
Minutes interim-2026-moq-24: Mon 16:30 — datatracker.ietf.org · 2026-09-28News
Protocols Are Not the Internet: IETF Draft by Mark Nichols — marknichols.com · 2026-09-25News
6G talks end with no decision on 5G migration options - Ligh… — lightreading.com · 2026-09-25News
RFC 10041: Advertising Unreachable Links in OSPF | Guide books — dl.acm.org · 2026-09-24Research
5G NTN - ENENSYS — enensys.com · 2026-09-23News
Execution Finality at External-Effect Boundaries: Architectu… — zenodo.org · 2026-09-22Research
Live updates: World leaders gather at UN General Assembly - … — bbc.com · 2026-09-22News
PBS News Hour | Trump defends Iran war at UN General Assembl… — pbs.org · 2026-09-22News
Middle East wars loom over UN General Assembly, and other Mi… — local10.com · 2026-09-22News
3GPP Reports 6G Progress, But Geopolitics Still Matters, ... — telcoforge.com · 2026-09-22News
Officials describe a world in turmoil as UN opens annual mee… — apnews.com · 2026-09-22News
Up First briefing: CNN, MS Now and Politico; UNGA speech; Pa… — npr.org · 2026-09-22News
UE Data Collection, Reporting and Event Exposure | 5G-MAG - … — 5g-mag.com · 2026-09-22News
http://identitymeme.org/ietf-document-series-and-how-documen… — identitymeme.org · 2026-09-19News
Service Function Chaining (sfc) — datatracker.ietf.org · 2026-09-15News
Working Group Reports to RAN Plenary #113 — 3gpp.org · 2026-09-14News
one6G WG2 releases the 6th edition of the “6G Technology Ove… — one6g.org · 2026-09-11News
A double-layer consensus framework for group decision-making… — link.springer.com · 2026-09-10Research
The Purpose Declined HTTP Status Code — datatracker.ietf.org · 2026-09-09News
6G Takes Shape: What the August 2026 Working Groups Actually… — 3gpp-explorer.com · 2026-09-08News
Global: Operator alliance updates guidance on 6G architectur… — digital-strategy.ec.europa.eu · 2026-09-08Official
SEARCH -- a New Slow Start Algorithm for TCP and QUIC — datatracker.ietf.org · 2026-09-04News
Release 17 uplink tests reach MediaTek M60 | IN Electronics … — inelectronics.co.uk · 2026-09-04News
Spectrum Harmonization Towards 6G: A Survey: IETE Technical … — tandfonline.com · 2026-09-03Research
Full article: Introduction: What went wrong with the interne… — doi.org · 2026-09-03Research
Triage: Boosting Cross-region Video Conferencing with Proact… — dl.acm.org · 2026-09-02Research
The future of 6G: research, innovation, and global standards — instarstandards.org · 2026-09-01News
draft-ietf-acme-pop-00 - Automated Certificate ... — datatracker.ietf.org · 2026-09-01News
Item - Replication Package for “The Review-Priority Label in… — figshare.com · 2026-09-01News
ietf-announce — mailarchive.ietf.org · 2026-09-01Announcement
Low signal — scanned and set aside · 2
General News Archives - Goal Poacher News — goalpoachernews.com · 2026-09-24Low signal
General News - My World News Era — myworldnewsera.com · 2026-09-08Low signal
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