TS 38.391 – Ambient IoT MAC Protocol
3GPP TS 38.391 is the 3GPP Technical Specification for Ambient IoT MAC Protocol. Its official 3GPP title is “NR; Ambient IoT Medium Access Control Protocol specification”. It is part of 3GPP Rel-19 (version 19.4.0).
Defines the MAC architecture, messages, access procedures, paging, data transfer, segmentation, scheduling, and failure handling for Ambient IoT devices and readers.
Releases and versions of TS 38.391
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.4.0 | Read · Download (3GPP) |
Scope of TS 38.391
Category: Radio Access (MAC Layer). Technology generation: 5G. Network layer: RAN.
Who should read this specification?
- Network operators
- Device manufacturers
- Researchers and academics
Implementation notes
Complexity level: Advanced. Implementation difficulty: High.
Key technologies
Specifications that reference TS 38.391
- TS 23.369 5GS Architecture for Ambient IoT
Other specifications in the 38 series
- TS 38.331 NR Radio Resource Control (RRC)
- TS 38.340 Backhaul Adaptation Protocol (BAP) Specification
- TS 38.351 Sidelink Relay Adaptation Protocol (SRAP)
- TS 38.355 Sidelink Positioning Protocol (SLPP) Specification
- TS 38.401 NG-RAN Architecture Description
- TS 38.410 NG-RAN; NG General Aspects and Principles
- TS 38.411 NG Interface Layer 1 Specification
- TS 38.412 NG Signalling Transport
Frequently asked questions
What is 3GPP TS 38.391?
3GPP TS 38.391 is the 3GPP Technical Specification for Ambient IoT MAC Protocol. Defines the MAC architecture, messages, access procedures, paging, data transfer, segmentation, scheduling, and failure handling for Ambient IoT devices and readers.
Which 3GPP releases include TS 38.391?
TS 38.391 is part of 3GPP Rel-19. The latest version on 3GPP Explorer is 19.4.0 (Rel-19).
What category does TS 38.391 belong to?
TS 38.391 belongs to the Radio Access (MAC Layer) category of 3GPP specifications. It applies to 5G networks.
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