Release Rel-15
5G NRThe foundational 5G New Radio release, defining the NR air interface and 5G core.
Frozen 2018-06-14118 specifications in series 23
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 23.066
Support of Mobile Number Portability (MNP); Technical realization; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.067
enhanced Multi-Level Precedence and Pre-emption Service (eMLPP); Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.072
Call Deflection (CD) supplementary service; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.078
Customised Applications for Mobile network Enhanced Logic (CAMEL) Phase 4; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.079
Support of Optimal Routeing (SOR); Technical realization
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.081
Line Identification supplementary services; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.082
Call Forwarding (CF) supplementary services; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.083
Call Waiting (CW) and Call Hold (HOLD) supplementary services; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.084
Multi Party (MPTY) supplementary service; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.085
Closed User Group (CUG) supplementary service; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.086
Advice of Charge (AoC) supplementary services; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.087
User-to-User Signalling (UUS) supplementary service; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.088
Call Barring (CB) Supplementary Services; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.090
Unstructured Supplementary Service Data (USSD); Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.091
Explicit Call Transfer (ECT) supplementary service; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.093
Technical realization of Completion of Calls to Busy Subscriber (CCBS); Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.094
Follow-Me (FM); Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 23.096
Name identification supplementary services; Stage 2
Architecture
Rel-15TS5GCUpdated 2026-07-25
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