TS 38.421 – Xn Interface Layer 1 Specification
3GPP TS 38.421 is the 3GPP Technical Specification for Xn Interface Layer 1 Specification. It is published in 5 releases (Rel-15 to Rel-19); the latest version is 19.0.0 in Rel-19.
Specifies the physical layer standards for the Xn interface between NG-RAN nodes. References TS 38.411 for requirements.
Releases and versions of TS 38.421
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.0.0 | Read · Download (3GPP) |
| Rel-18 | 18.0.0 | Read · Download (3GPP) |
| Rel-17 | 17.0.0 | Read · Download (3GPP) |
| Rel-16 | 16.0.0 | Read · Download (3GPP) |
| Rel-15 | 15.1.0 | Read · Download (3GPP) |
Scope of TS 38.421
Category: Radio Access (Physical Layer). Technology generation: 5G. Network layer: RAN.
Who should read this specification?
- Network operators
- Device manufacturers
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Specifications referenced by TS 38.421
- TS 38.411 NG Interface Layer 1 Specification
Specifications that reference TS 38.421
- TS 38.420 Introduction to Xn interface specifications
Other specifications in the 38 series
- TS 38.413 NG Application Protocol (NGAP) Specification
- TS 38.414 NG Interface User Plane Protocol
- TS 38.415 PDU Session User Plane Protocol
- TS 38.420 Introduction to Xn interface specifications
- TS 38.422 Xn Signalling Transport Specification
- TS 38.423 NG-RAN Xn Application Protocol
- TS 38.424 Xn Interface User Plane Transport Protocol
- TS 38.425 NR User Plane Protocol Specification
Related glossary terms
Related topics
Related technologies
Frequently asked questions
What is 3GPP TS 38.421?
3GPP TS 38.421 is the 3GPP Technical Specification for Xn Interface Layer 1 Specification. Specifies the physical layer standards for the Xn interface between NG-RAN nodes. References TS 38.411 for requirements.
Which 3GPP releases include TS 38.421?
TS 38.421 is published in 5 releases, from Rel-15 to Rel-19. The latest version on 3GPP Explorer is 19.0.0 (Rel-19).
What category does TS 38.421 belong to?
TS 38.421 belongs to the Radio Access (Physical Layer) category of 3GPP specifications. It applies to 5G networks.
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