TS 25.421 – Iur Interface Layer 1 Specification
3GPP TS 25.421 is the 3GPP Technical Specification for Iur Interface Layer 1 Specification. It is published in 12 releases (Rel-8 to Rel-19); the latest version is 19.0.0 in Rel-19.
Specifies Layer 1 standards for Iur interface in UTRAN, excluding transmission delay and O&M requirements.
Releases and versions of TS 25.421
| 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 | 15.0.0 | Read · Download (3GPP) |
| Rel-14 | 14.0.0 | Read · Download (3GPP) |
| Rel-13 | 13.0.0 | Read · Download (3GPP) |
| Rel-12 | 12.0.0 | Read · Download (3GPP) |
| Rel-11 | 11.0.0 | Read · Download (3GPP) |
| Rel-10 | 10.1.0 | Read · Download (3GPP) |
| Rel-9 | 9.0.1 | Read · Download (3GPP) |
| Rel-8 | 8.0.0 | Read · Download (3GPP) |
Scope of TS 25.421
Category: Radio Access (Physical Layer). Technology generation: 3G. 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 25.421
- TS 25.411 Iu Interface Layer 1 Specification
Specifications that reference TS 25.421
Other specifications in the 25 series
- TS 25.414 UTRAN Iu Interface User Plane Transport Protocols
- TS 25.415 Iu Interface User Plane Protocol
- TS 25.419 Service Area Broadcast Protocol (SABP)
- TS 25.420 Iur Interface Introduction for UTRAN
- TS 25.422 Signalling Transport for Iur Interface
- TS 25.423 UTRAN RNSAP Specification
- TS 25.424 UTRAN Iur Interface Data Transport & Signalling
- TS 25.425 UTRAN Iur Interface User Plane Protocols
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 25.421?
3GPP TS 25.421 is the 3GPP Technical Specification for Iur Interface Layer 1 Specification. Specifies Layer 1 standards for Iur interface in UTRAN, excluding transmission delay and O&M requirements.
Which 3GPP releases include TS 25.421?
TS 25.421 is published in 12 releases, from Rel-8 to Rel-19. The latest version on 3GPP Explorer is 19.0.0 (Rel-19).
What category does TS 25.421 belong to?
TS 25.421 belongs to the Radio Access (Physical Layer) category of 3GPP specifications. It applies to 3G networks.
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