TS 25.225 – UTRA TDD Physical Layer Measurements
3GPP TS 25.225 is the 3GPP Technical Specification for UTRA TDD Physical Layer Measurements. It is published in 17 releases (R99 to Rel-19); the latest version is 19.0.0 in Rel-19.
Defines UE and network measurements for UTRA TDD mode operation in idle and connected states, supporting cell selection, handover, DCA, and timing advance.
Releases and versions of TS 25.225
| 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 | 12.1.0 | Read · Download (3GPP) |
| Rel-11 | 11.0.0 | Read · Download (3GPP) |
| Rel-10 | 10.1.0 | Read · Download (3GPP) |
| Rel-9 | 9.2.0 | Read · Download (3GPP) |
| Rel-8 | 8.4.0 | Read · Download (3GPP) |
| Rel-7 | 7.5.0 | Read · Download (3GPP) |
| Rel-6 | 6.3.0 | Read · Download (3GPP) |
| Rel-5 | 5.7.0 | Read · Download (3GPP) |
| Rel-4 | 4.8.0 | Read · Download (3GPP) |
| R99 | 3.12.0 | Read · Download (3GPP) |
Scope of TS 25.225
Category: Radio Access (Physical Layer). Technology generation: 3G. 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 25.225
- TS 25.301 UE-UTRAN Radio Interface Protocol Architecture
- TS 25.302 UTRA Physical Layer Services
- TS 25.303 Radio Resource Control Procedures
- TS 25.304 UE Idle Mode Procedures
- TS 25.331 RRC Protocol for UE-UTRAN Radio Interface
- 25.922 Radio Resource Management Strategies
- 25.923 Report on Location Services (LCS)
- TS 25.102 UTRA TDD RF Characteristics
- TS 25.105 UTRA TDD Base Station RF Requirements
- TS 25.123 Radio Resource Management for TDD
- TS 25.211 UTRA FDD Layer 1: Transport & Physical Channels
- TS 36.211 E-UTRA Physical Layer Specifications
Specifications that reference TS 25.225
- TS 25.331 RRC Protocol for UE-UTRAN Radio Interface
- TS 37.320 MDT Overall Description (Stage 2)
- TS 25.304 UE Idle Mode Procedures
- TS 25.321 MAC Protocol Specification for UTRAN
- TS 25.215 UTRA FDD Measurement Definitions
- TS 25.224 UTRA TDD Physical Layer Procedures
- TS 25.133 UTRAN RRM Requirements for FDD
- TS 25.212 UTRA FDD Layer 1 Multiplexing & Channel Coding
- TS 25.302 UTRA Physical Layer Services
- TS 25.306 UE Radio Access Capabilities Specification
- TS 25.221 UTRA TDD Physical Layer Specification
- TS 25.222 UTRA TDD Multiplexing & Channel Coding
Other specifications in the 25 series
- TS 25.221 UTRA TDD Physical Layer Specification
- TS 25.222 UTRA TDD Multiplexing & Channel Coding
- TS 25.223 UTRA Physical Layer TDD Spreading & Modulation
- TS 25.224 UTRA TDD Physical Layer Procedures
- TS 25.300 UTRA Radio Interface Enhancements Overview
- TS 25.301 UE-UTRAN Radio Interface Protocol Architecture
- TS 25.302 UTRA Physical Layer Services
- TS 25.303 Radio Resource Control Procedures
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 25.225?
3GPP TS 25.225 is the 3GPP Technical Specification for UTRA TDD Physical Layer Measurements. Defines UE and network measurements for UTRA TDD mode operation in idle and connected states, supporting cell selection, handover, DCA, and timing advance.
Which 3GPP releases include TS 25.225?
TS 25.225 is published in 17 releases, from R99 to Rel-19. The latest version on 3GPP Explorer is 19.0.0 (Rel-19).
What category does TS 25.225 belong to?
TS 25.225 belongs to the Radio Access (Physical Layer) category of 3GPP specifications. It applies to 3G networks.
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