TS 25.331 – RRC Protocol for UE-UTRAN Radio Interface
3GPP TS 25.331 is the 3GPP Technical Specification for RRC Protocol for UE-UTRAN Radio Interface. It is published in 17 releases (R99 to Rel-19); the latest version is 19.0.1 in Rel-19.
Specifies Radio Resource Control protocol for UE-UTRAN, including SRNC relocation and transparent container info.
Releases and versions of TS 25.331
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.0.1 | Read · Download (3GPP) |
| Rel-18 | 18.0.0 | Read · Download (3GPP) |
| Rel-17 | 17.1.0 | Read · Download (3GPP) |
| Rel-16 | 16.1.0 | Read · Download (3GPP) |
| Rel-15 | 15.4.0 | Read · Download (3GPP) |
| Rel-14 | 14.5.0 | Read · Download (3GPP) |
| Rel-13 | 13.8.0 | Read · Download (3GPP) |
| Rel-12 | 12.15.0 | Read · Download (3GPP) |
| Rel-11 | 11.18.0 | Read · Download (3GPP) |
| Rel-10 | 10.20.0 | Read · Download (3GPP) |
| Rel-9 | 9.19.0 | Read · Download (3GPP) |
| Rel-8 | 8.25.0 | Read · Download (3GPP) |
| Rel-7 | 7.25.0 | Read · Download (3GPP) |
| Rel-6 | 6.26.0 | Read · Download (3GPP) |
| Rel-5 | 5.25.0 | Read · Download (3GPP) |
| Rel-4 | 4.21.0 | Read · Download (3GPP) |
| R99 | 3.21.0 | Read · Download (3GPP) |
Scope of TS 25.331
Category: Radio Access (Radio Resource Control). Technology generation: 3G. 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 25.331
- TS 25.402 UTRAN Synchronisation Mechanisms
- 25.921 Guidelines and principles for protocol description and error handling
- TS 25.321 MAC Protocol Specification for UTRAN
- TS 25.322 RLC Protocol Specification
- TS 24.007 Layer 3 Architecture for GSM/UMTS/EPS/5GS
- TS 25.305 UTRAN UE Positioning Stage 2
- TS 25.133 UTRAN RRM Requirements for FDD
- TR 21.905 3GPP Terminology and Definitions
- TS 25.123 Radio Resource Management for TDD
- TS 25.101 UTRA FDD UE RF Requirements
- TS 25.102 UTRA TDD RF Characteristics
- TS 23.060 GPRS Stage 2 Service Description
Specifications that reference TS 25.331
- TS 23.401 Evolved Packet System Architecture
- TS 36.331 E-UTRA Radio Resource Control (RRC) Protocol
- TS 23.060 GPRS Stage 2 Service Description
- TS 38.331 NR Radio Resource Control (RRC)
- TS 26.114 IMS Multimedia Telephony Client
- TS 28.622 Generic Network Resource Information Service
- TS 25.413 Radio Access Network Application Part (RANAP)
- TS 23.402 EPC for Non-3GPP Access (PMIP)
- TS 32.422 Trace, MDT and UE Measurement Control
- TS 33.102 3G Security Architecture Specification
- TS 33.401 EPS Security Architecture
- TS 23.216 SRVCC Architecture Enhancements
Other specifications in the 25 series
- TS 25.322 RLC Protocol Specification
- TS 25.323 Packet Data Convergence Protocol (PDCP) Specification
- TS 25.324 Broadcast/Multicast Control Protocol
- TS 25.327 Multi-carrier HSDPA UE requirements
- TS 25.346 MBMS in UTRA Technical Specification
- TS 25.367 Home NodeB Mobility Procedures
- TS 25.401 UTRAN Overall Architecture
- TS 25.402 UTRAN Synchronisation Mechanisms
Frequently asked questions
What is 3GPP TS 25.331?
3GPP TS 25.331 is the 3GPP Technical Specification for RRC Protocol for UE-UTRAN Radio Interface. Specifies Radio Resource Control protocol for UE-UTRAN, including SRNC relocation and transparent container info.
Which 3GPP releases include TS 25.331?
TS 25.331 is published in 17 releases, from R99 to Rel-19. The latest version on 3GPP Explorer is 19.0.1 (Rel-19).
What category does TS 25.331 belong to?
TS 25.331 belongs to the Radio Access (Radio Resource Control) category of 3GPP specifications. It applies to 3G networks.
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