TS 37.473 – W1 Application Protocol (W1AP) Specification
3GPP TS 37.473 is the 3GPP Technical Specification for W1 Application Protocol (W1AP) Specification. It is published in 4 releases (Rel-16 to Rel-19); the latest version is 19.0.0 in Rel-19.
Specifies 5G radio network layer signaling protocol for W1 interface between ng-eNB-CU and ng-eNB-DU in NG-RAN.
Releases and versions of TS 37.473
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.0.0 | Read · Download (3GPP) |
| Rel-18 | 18.0.0 | Read · Download (3GPP) |
| Rel-17 | 17.2.0 | Read · Download (3GPP) |
| Rel-16 | 16.9.0 | Read · Download (3GPP) |
Scope of TS 37.473
Category: Radio Access (RAN Protocols). 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 referenced by TS 37.473
- TS 23.401 Evolved Packet System Architecture
- TS 23.203 Policy and Charging Control Architecture
- TS 36.423 X2 Application Protocol (X2AP) Specification
- TS 36.211 E-UTRA Physical Layer Specifications
- TS 36.104 E-UTRA/NB-IoT Base Station RF Requirements
- TS 36.321 E-UTRA MAC Protocol Specification
- TS 38.331 NR Radio Resource Control (RRC)
- TS 29.281 GTPv1-U Protocol Specification
- TS 38.414 NG Interface User Plane Protocol
- TS 38.413 NG Application Protocol (NGAP) Specification
- TR 21.905 3GPP Terminology and Definitions
- TS 36.304 LTE UE Idle Mode Procedures
Specifications that reference TS 37.473
- TS 37.470 W1 Interface Introduction for ng-eNB
Other specifications in the 37 series
- TS 37.466 Iuant Interface Introduction & RETAP/TMAAP
- TS 37.470 W1 Interface Introduction for ng-eNB
- TS 37.471 NG-RAN; W1 layer 1 specification
- TS 37.472 W1 Interface Signalling Transport Specification
- TS 37.480 E1 Interface General Aspects and Principles
- TS 37.481 E1 Interface Layer 1 Specification
- TS 37.482 E1 Signalling Transport Specification
- TS 37.483 E1 Application Protocol (E1AP)
Related glossary terms
Related topics
Related technologies
Frequently asked questions
What is 3GPP TS 37.473?
3GPP TS 37.473 is the 3GPP Technical Specification for W1 Application Protocol (W1AP) Specification. Specifies 5G radio network layer signaling protocol for W1 interface between ng-eNB-CU and ng-eNB-DU in NG-RAN.
Which 3GPP releases include TS 37.473?
TS 37.473 is published in 4 releases, from Rel-16 to Rel-19. The latest version on 3GPP Explorer is 19.0.0 (Rel-19).
What category does TS 37.473 belong to?
TS 37.473 belongs to the Radio Access (RAN Protocols) category of 3GPP specifications. It applies to 5G networks.
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