6G Tracker

RAN3 · TR 38.760-3

Study on 6G Radio RAN3 aspects

RAN architecture and interfaces — the highest version of the four parts, and the oldest upload date. RAN3 banked its structural decisions early and has been waiting since June. Its central question is where to draw boundaries, and those can be chosen before anyone knows the subcarrier spacing.

Specification
TR 38.760-3
Work item
FS_6G_Radio
Group
RAN RAN3
Rapporteur
Alexey Kulakov — VODAFONE Group Plc
WID
RP-261559
Runs
6 Jun 2025 → 4 Jun 2027
Latest
v0.6.0 (22 Jun 2026)
Status
Advanced

Read this before quoting the page

Two independent accounts agree on the CU-DU option and on P2P-over-SBI, and RAN3's FTP listing independently shows matching conference blocks. That is three-way alignment on topics and two-way on outcomes — it is still not TR text. A folder proves a group allocated discussion time; it proves nothing about the outcome.

Where it stands

Two base-station design options
Ericsson: the base station as a single unit, as agreed at the start of the study; or a higher-layer split dividing processing into a distributed unit and a centralised unit, agreed in June 2026.
The RU becomes a named seam
Xingqin Lin (NVIDIA): "In 6G, the RU will be recognized as a distinct logical unit inside the aNB. The recognition is intentionally scoped: the RU functions and the interface between the RU and the rest of the aNB remain outside 3GPP specification." 3GPP names the seam and declines to specify it; details go to the O-RAN Alliance.
Point-to-point, not service-based
For connectivity services, both sources report a P2P design between the aNB and a 6G CN entity rather than a service-based interface — with the protocols to be determined later in the study.
Interfaces in scope
CU-DU; CU-CP/CU-UP; RAN-to-core; and aNB-to-aNB.
Live conference blocks
RAN3's own drafts folder lists CB #8_6GCharacteristsAndPerformance, #9_6G_SA2Reply, #10_6GSBI_NewSection, #11_6GHLS, #12_ISAC_arch, #13_ISACproc, #20_6GPaging, and two 6G AI/ML blocks.

Open questions

Watch next

Covered in

Edition 11

Sources

← All RAN studies