TS 23.221 – 3GPP System Architectural Requirements
3GPP TS 23.221 is the 3GPP Technical Specification for 3GPP System Architectural Requirements. Its official 3GPP title is “Architectural requirements”. It is published in 17 releases (R99 to Rel-19); the latest version is 19.0.0 in Rel-19.
Architectural requirements for 3GPP systems covering CS/PS domains, multi-domain procedures, and handover mechanisms.
Releases and versions of TS 23.221
| 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 | 16.2.0 | Read · Download (3GPP) |
| Rel-15 | 15.1.0 | Read · Download (3GPP) |
| Rel-14 | 14.2.0 | Read · Download (3GPP) |
| Rel-13 | 13.0.0 | Read · Download (3GPP) |
| Rel-12 | 12.0.0 | Read · Download (3GPP) |
| Rel-11 | 11.3.0 | Read · Download (3GPP) |
| Rel-10 | 10.3.0 | Read · Download (3GPP) |
| Rel-9 | 9.5.0 | Read · Download (3GPP) |
| Rel-8 | 8.9.0 | Read · Download (3GPP) |
| Rel-7 | 7.2.0 | Read · Download (3GPP) |
| Rel-6 | 6.3.0 | Read · Download (3GPP) |
| Rel-5 | 5.11.0 | Read · Download (3GPP) |
| Rel-4 | 4.2.0 | Read · Download (3GPP) |
| R99 | 1100 | Read · Download (3GPP) |
Scope of TS 23.221
Category: Core Network (Architecture). Technology generation: Multi-Gen. Network layer: CoreNetwork.
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 23.221
- TS 25.410 Iu Interface Introduction for UTRAN
- TS 23.228 IP Multimedia Core Network Subsystem
- TS 43.051 GERAN Stage 2 Service Description
- TS 23.153 Out-of-Band Transcoder Control Stage 2
- TS 23.205 Bearer Independent CS Core Network Stage 2
- TR 25.931 UTRAN Signalling Procedures Examples
- TS 25.401 UTRAN Overall Architecture
- TS 25.304 UE Idle Mode Procedures
- TS 23.002 3GPP System Architecture Overview
- TS 45.008 GSM Radio Link Control Specification
- TS 24.007 Layer 3 Architecture for GSM/UMTS/EPS/5GS
- TS 24.229 IMS SIP/SDP Call Control Protocol
Specifications that reference TS 23.221
- TS 23.501 5G System Architecture
- TS 24.008 NAS Call, Mobility and Session Procedures
- TS 24.229 IMS SIP/SDP Call Control Protocol
- TS 23.401 Evolved Packet System Architecture
- TS 23.228 IP Multimedia Core Network Subsystem
- TS 23.060 GPRS Stage 2 Service Description
- TS 23.203 Policy and Charging Control Architecture
- TS 23.503 5G Policy and Charging Control Framework
- TS 22.101 Service Principles for PLMNs
- TS 23.682 Architecture for MTC and SCEF Enhancements
- TS 23.402 EPC for Non-3GPP Access (PMIP)
- TS 29.061 Packet Domain Interworking Requirements
Other specifications in the 23 series
- TS 23.207 End-to-End QoS Framework for GPRS
- TS 23.214 Control and User Plane Separation for EPC
- TS 23.216 SRVCC Architecture Enhancements
- TS 23.218 IMS Call Model Specification
- TS 23.222 Common API Framework (CAPIF)
- TS 23.226 Global Text Telephony (GTT) Stage 2
- TS 23.227 UE Resource Scheduling and Application Management
- TS 23.228 IP Multimedia Core Network Subsystem
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 23.221?
3GPP TS 23.221 is the 3GPP Technical Specification for 3GPP System Architectural Requirements. Architectural requirements for 3GPP systems covering CS/PS domains, multi-domain procedures, and handover mechanisms.
Which 3GPP releases include TS 23.221?
TS 23.221 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 23.221 belong to?
TS 23.221 belongs to the Core Network (Architecture) category of 3GPP specifications. It applies to Multi-Gen networks.
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