3GPP Atlas

Canonical Atlas record

TS 38.391

NR; Ambient IoT Medium Access Control (MAC) protocol

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Responsible WGR2
StatusUnder change control
Initial releaseRel-19
Selected releaseRel-19
Latest indexed version19.4.0
Series38
TypeTS

Release evolution

Compare evidence between releases

Use indexed version, Work Item and Change Request evidence to see what changed around this specification. This is an evidence trail, not a clause-by-clause normative diff.

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Release ledger

Version · WI · CR evidence by release

Rel-1919.4.02 WI34 CRs · 10 approved

Rel-19 snapshot

Work affecting this release

34 indexed Change Requests · 2 connected Work Items.

Showing 12 CR records from the available cross-release sample. Browse release CR records (JSON) →

CR 0016 rev.1 — Clarification on Fill Bits field in R2D messages

CR 0018 — Miscellaneous rapporteur corrections

CR 0017 — Corrections for A-IoT MAC

CR 0011 rev.1 — Correction on AIoT upper layer indicator

CR 0009 rev.2 — Correction on the value indication of Frequency Resource Indication

CR 0008 rev.3 — Correction for A-IoT device error handing

CR 0014 — Clarification on the value range

CR 0007 rev.2 — Miscellaneous rapporteur corrections

CR 0002 rev.1 — Rapporteur corrections for A-IoT

CR 0001 rev.2 — Corrections to A-IoT MAC layer

CR 0009 rev.1 — Correction on the value indication of Frequency Resource Indication

CR 0010 — Correction on failure detection for A-IoT

Version history

Indexed versions

Showing 11 of 11 indexed versions.

19.4.0Rel-19RAN#1132026-09-25
19.3.0Rel-19RAN#1122026-06-28
19.2.0Rel-19RAN#1112026-03-20
19.1.0Rel-19RAN#1102026-01-15
0.2.0Rel-19 · pre-approvalRAN2#1312025-10-10
0.1.0Rel-19 · pre-approvalRAN2#1312025-10-10
19.0.0Rel-19RAN#1092025-09-30
1.0.0Rel-19 · pre-approvalRAN#1092025-09-08
0.0.3Rel-19 · pre-approvalRAN2#1312025-08-15
0.0.2Rel-19 · pre-approvalRAN2#1302025-05-09
0.0.1Rel-19 · pre-approvalRAN2#129bis2025-03-28

Atlas classifications

Meaning and provenance

No Atlas classifications have been attached yet.

Work Items

Standards work connected to TS 38.391

Ambient_IoT_Solutions

Solutions for Ambient IoT (Internet of Things) in NR

Rel-19parsed
Ambient_IoT_Solutions-Core

Core part: Solutions for Ambient IoT (Internet of Things) in NR

Rel-19official

Knowledge graph

Related standards

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