TS 37.340 – Overview of Multi-Connectivity Operation using E-UTRA and NR
3GPP TS 37.340 is the 3GPP Technical Specification for Overview of Multi-Connectivity Operation using E-UTRA and NR. Its official 3GPP title is “Evolved Universal Terrestrial Radio Access (E-UTRA) and NR”. It is published in 5 releases (Rel-15 to Rel-19); the latest version is 19.3.0 in Rel-19.
Provides an overview of multi-connectivity operation using E-UTRA and NR radio access technologies, detailing network and radio interface protocols.
Releases and versions of TS 37.340
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.3.0 | Read · Download (3GPP) |
| Rel-18 | 18.7.0 | Read · Download (3GPP) |
| Rel-17 | 17.8.0 | Read · Download (3GPP) |
| Rel-16 | 16.13.0 | Read · Download (3GPP) |
| Rel-15 | 15.16.0 | Read · Download (3GPP) |
Scope of TS 37.340
Category: Radio Access (Radio Interface Protocols). Technology generation: 5G. Network layer: RAN.
Who should read this specification?
- Network operators
- Device manufacturers
- Researchers and academics
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Specifications referenced by TS 37.340
- TS 36.331 E-UTRA Radio Resource Control (RRC) Protocol
- TS 23.501 5G System Architecture
- TS 38.101 UE Radio Transmission and Reception
- TS 36.323 PDCP Protocol Specification
- TS 38.323 PDCP Protocol Specification
- TS 38.340 Backhaul Adaptation Protocol (BAP) Specification
- TS 23.287 5G V2X Architecture Enhancements
- TS 23.285 V2X Architecture Enhancements for LTE
- TR 21.905 3GPP Terminology and Definitions
- TS 23.502 5G System Procedures
- TS 38.213 NR Physical Layer Control Procedures
- TS 24.301 EPS NAS Mobility and Session Management
Specifications that reference TS 37.340
- TS 23.501 5G System Architecture
- TS 33.501 5G Security Architecture
- TS 24.229 IMS SIP/SDP Call Control Protocol
- TS 23.401 Evolved Packet System Architecture
- TS 36.331 E-UTRA Radio Resource Control (RRC) Protocol
- TS 38.300 NR and NG-RAN Overall Description
- TS 36.300 E-UTRAN Radio Interface Protocol Architecture
- TS 38.331 NR Radio Resource Control (RRC)
- TS 24.501 5GS NAS Protocol Specification
- TS 38.413 NG Application Protocol (NGAP) Specification
- TS 28.541 5G Network Resource Model (NRM) Stage 2 and 3
- TS 36.413 S1 Application Protocol (S1AP) for E-UTRAN
Other specifications in the 37 series
- TS 37.171 UE Positioning Performance Requirements
- TS 37.213 Shared Spectrum Physical Layer Procedures
- TS 37.320 MDT Overall Description (Stage 2)
- TS 37.324 Service Data Adaptation Protocol (SDAP)
- TS 37.355 LTE Positioning Protocol (LPP)
- TS 37.460 Iuant Interface Introduction
- TS 37.461 Iuant Interface Layer 1 Specification
- TS 37.462 Iuant Interface Data Link Layer for RETAP/TMAAP
Frequently asked questions
What is 3GPP TS 37.340?
3GPP TS 37.340 is the 3GPP Technical Specification for Overview of Multi-Connectivity Operation using E-UTRA and NR. Provides an overview of multi-connectivity operation using E-UTRA and NR radio access technologies, detailing network and radio interface protocols.
Which 3GPP releases include TS 37.340?
TS 37.340 is published in 5 releases, from Rel-15 to Rel-19. The latest version on 3GPP Explorer is 19.3.0 (Rel-19).
What category does TS 37.340 belong to?
TS 37.340 belongs to the Radio Access (Radio Interface Protocols) category of 3GPP specifications. It applies to 5G networks.
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