TS 38.174 – NR Integrated Access and Backhaul Requirements
3GPP TS 38.174 is the 3GPP Technical Specification for NR Integrated Access and Backhaul Requirements. Its official 3GPP title is “Integrated Access and Backhaul (IAB) radio transmission and reception”. It is published in 5 releases (Rel-16 to Rel-20); the latest version is 20.0.0 in Rel-20.
Defines minimum RF, RRM, test-case, and performance requirements for 5G NR Integrated Access and Backhaul nodes operating across FR1 and FR2.
Releases and versions of TS 38.174
| Release | Latest version | Links |
|---|---|---|
| Rel-20 | 20.0.0 | Read · Download (3GPP) |
| Rel-19 | 19.2.0 | Read · Download (3GPP) |
| Rel-18 | 18.8.0 | Read · Download (3GPP) |
| Rel-17 | 17.10.0 | Read · Download (3GPP) |
| Rel-16 | 16.13.0 | Read · Download (3GPP) |
Scope of TS 38.174
Category: Radio Access (IAB RF and RRM). Technology generation: 5G. Network layer: RAN.
Who should read this specification?
- Network operators
- Device manufacturers
- Regulators and standards bodies
- Researchers and academics
Implementation notes
Complexity level: Expert. Implementation difficulty: High.
Key technologies
Specifications referenced by TS 38.174
- TS 38.213 NR Physical Layer Control Procedures
- TS 38.214 NR Physical Layer Data Channel Procedures
- TS 38.215 NR Physical Layer Measurements
- TS 38.304 NR UE Idle and Inactive State Procedures
- TS 38.321 NR MAC Protocol Specification
- TS 38.331 NR Radio Resource Control (RRC)
- TR 21.905 3GPP Terminology and Definitions
- TS 38.141 BS Conformance Testing
- TS 38.521 UE Conformance Specification
- TS 38.176 IAB Conformance Testing
- TR 38.901 5G NR Channel Model
- TS 38.101 UE Radio Transmission and Reception
Specifications that reference TS 38.174
Other specifications in the 38 series
- TS 38.141-2 NR BS Radiated Conformance Testing
- TS 38.151 MIMO OTA Performance Requirements for NR UEs
- TS 38.161 UE TRP and TRS Requirements
- TS 38.171 5G A-GNSS UE Positioning Requirements
- TS 38.175 EMC for NR IAB Nodes
- TS 38.176 IAB Conformance Testing
- TS 38.176-1 IAB Conformance Testing
- TS 38.176-2 NR IAB Radiated Conformance Testing
Frequently asked questions
What is 3GPP TS 38.174?
3GPP TS 38.174 is the 3GPP Technical Specification for NR Integrated Access and Backhaul Requirements. Defines minimum RF, RRM, test-case, and performance requirements for 5G NR Integrated Access and Backhaul nodes operating across FR1 and FR2.
Which 3GPP releases include TS 38.174?
TS 38.174 is published in 5 releases, from Rel-16 to Rel-20. The latest version on 3GPP Explorer is 20.0.0 (Rel-20).
What category does TS 38.174 belong to?
TS 38.174 belongs to the Radio Access (IAB RF and RRM) category of 3GPP specifications. It applies to 5G networks.
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