Release Rel-15
5G NRThe foundational 5G New Radio release, defining the NR air interface and 5G core.
Frozen 2018-06-141,188 specifications
Key features: First 5G NR specifications, NSA and SA architectures
All SeriesSeries 21Series 22Series 23Series 24Series 26Series 27Series 28Series 29Series 31Series 32Series 33Series 34Series 35Series 36Series 37Series 38
TS 23.097
Multiple Subscriber Profile (MSP) (Phase 2); Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.107
Quality of Service (QoS) concept and architecture
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.108
Mobile radio interface layer 3 specification, core network protocols; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.116
Super-Charger technical realization; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.119
Gateway Location Register (GLR); Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.122
Non-Access-Stratum (NAS) functions related to Mobile Station (MS) in idle mode
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.135
Multicall supplementary service; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.139
3GPP system - fixed broadband access network interworking; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.141
Presence service; Architecture and functional description
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.142
Value-added Services for SMS (VAS4SMS); Interface and signalling flow
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.146
Technical realization of facsimile Group 3 non-transparent
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.153
Out of band transcoder control; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.161
Network-Based IP Flow Mobility (NBIFOM); Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.167
IP Multimedia Subsystem (IMS) emergency sessions
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.172
Technical realization of Circuit Switched (CS) multimedia service UDI/RDI fallback and service modification; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.202
Circuit switched data bearer services
Physical Layer
Rel-15TS5GCUpdated 2026-07-25
TS 23.203
Policy and charging control architecture
Physical Layer
Rel-15TS5GCUpdated 2026-07-25
TS 23.204
Support of Short Message Service (SMS) over generic 3GPP Internet Protocol (IP) access; Stage 2
Physical Layer
Rel-15TS5GCUpdated 2026-07-25
TS 23.205
Bearer-independent circuit-switched core network; Stage 2
Physical Layer
Rel-15TS5GCUpdated 2026-07-25
TS 23.207
End-to-end Quality of Service (QoS) concept and architecture
Physical Layer
Rel-15TS5GCUpdated 2026-07-25