TS 23.122 – Idle Mode and PLMN Selection Procedures
3GPP TS 23.122 is the 3GPP Technical Specification for Idle Mode and PLMN Selection Procedures. Its official 3GPP title is “Non-Access-Stratum (NAS) functions related to Mobile Station (MS) in idle mode”. It is published in 18 releases (R99 to Rel-20); the latest version is 20.1.0 in Rel-20.
Defines mobile station idle-mode operation, PLMN/SNPN selection, cell access procedures, and related 2G through 5G network functions.
Releases and versions of TS 23.122
| Release | Latest version | Links |
|---|---|---|
| Rel-20 | 20.1.0 | Read · Download (3GPP) |
| Rel-19 | 19.7.0 | Read · Download (3GPP) |
| Rel-18 | 18.11.0 | Read · Download (3GPP) |
| Rel-17 | 17.10.0 | Read · Download (3GPP) |
| Rel-16 | 16.12.0 | Read · Download (3GPP) |
| Rel-15 | 15.7.0 | Read · Download (3GPP) |
| Rel-14 | 14.5.0 | Read · Download (3GPP) |
| Rel-13 | 13.6.0 | Read · Download (3GPP) |
| Rel-12 | 12.9.0 | Read · Download (3GPP) |
| Rel-11 | 11.4.0 | Read · Download (3GPP) |
| Rel-10 | 10.5.0 | Read · Download (3GPP) |
| Rel-9 | 9.6.0 | Read · Download (3GPP) |
| Rel-8 | 8.12.0 | Read · Download (3GPP) |
| Rel-7 | 7.12.1 | Read · Download (3GPP) |
| Rel-6 | 6.5.0 | Read · Download (3GPP) |
| Rel-5 | 5.3.0 | Read · Download (3GPP) |
| Rel-4 | 4.4.0 | Read · Download (3GPP) |
| R99 | 3.10.0 | Read · Download (3GPP) |
Scope of TS 23.122
Category: Core Network (Idle Mode and Network Selection). Technology generation: Multi-Gen. Network layer: UE.
Who should read this specification?
- Network operators
- Device manufacturers
- Regulators and standards bodies
- Researchers and academics
Implementation notes
Complexity level: Advanced. Implementation difficulty: High.
Key technologies
Specifications that reference TS 23.122
- TR 21.905 3GPP Terminology and Definitions
- TS 23.501 5G System Architecture
- TS 23.502 5G System Procedures
- TS 24.008 NAS Call, Mobility and Session Procedures
- 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 22.261 5G System Service Requirements
- TS 25.331 RRC Protocol for UE-UTRAN Radio Interface
- TS 24.501 5GS NAS Protocol Specification
Other specifications in the 23 series
- TS 23.110 Access Stratum Services Specification
- TS 23.116 Super-Charger Stage 2 Specification
- TS 23.119 Gateway Location Register (GLR) Stage 2 Description
- TS 23.121 UMTS/GSM Evolution Technical Spec
- TS 23.125 Flow Based Charging Architecture
- TS 23.127 Virtual Home Environment Stage 2 Specification
- TS 23.135 Multicall Supplementary Service Stage 2
- TS 23.137 5G Integrated Sensing Architecture
Frequently asked questions
What is 3GPP TS 23.122?
3GPP TS 23.122 is the 3GPP Technical Specification for Idle Mode and PLMN Selection Procedures. Defines mobile station idle-mode operation, PLMN/SNPN selection, cell access procedures, and related 2G through 5G network functions.
Which 3GPP releases include TS 23.122?
TS 23.122 is published in 18 releases, from R99 to Rel-20. The latest version on 3GPP Explorer is 20.1.0 (Rel-20).
What category does TS 23.122 belong to?
TS 23.122 belongs to the Core Network (Idle Mode and Network Selection) category of 3GPP specifications. It applies to Multi-Gen networks.
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