Release Rel-16
5G NREnhances 5G NR with unlicensed spectrum, vehicle-to-everything, and private network support.
Frozen 2020-07-03140 specifications in series 23
Key features: NR-U unlicensed, V2X, industrial IoT, integrated access backhaul
All SeriesSeries 21Series 22Series 23Series 24Series 26Series 27Series 28Series 29Series 31Series 32Series 33Series 34Series 35Series 36Series 37Series 38
TS 23.756
Study for single radio voice continuity from 5G to 3G
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.778
Study on Mission Critical services access aspects
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.783
Study on Mission Critical services support over 5G System
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.784
Study on discreet listening and logging for mission critical services
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.786
Study on architecture enhancements for the Evolved Packet System (EPS) and the 5G System (5GS) to support advanced V2X services
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.791
Study of enablers for Network Automation for 5G
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.792
Study on MBMS APIs for Mission Critical Services
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.793
Study on access traffic steering, switch and splitting support in the 5G System (5GS) architecture
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.794
Study on enhanced IP Multimedia Subsystem (IMS) to 5GC integration
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.795
Study on application layer support for V2X services
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.796
Study on application architecture for the Future Railway Mobile Communication System (FRMCS) Phase 2
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.903
Redial solution for voice-video switching
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.919
Direct tunnel deployment guideline
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.924
Feasibility study on Non-Access Stratum (NAS) node selection function above Base Station Controller (BSC) / Radio Network Controller (RNC)
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.973
User data interworking, coexistence and migration
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.975
IPv6 migration guidelines
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.976
Push architecture
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.977
Bandwidth And Resource Savings (BARS) and speech enhancements for Circuit Switched (CS) networks
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.979
3GPP enablers for Open Mobile Alliance (OMA); Push-to-talk over Cellular (PoC) services; Stage 2
Architecture
Rel-16TS5GCUpdated 2026-07-25
TS 23.981
Interworking aspects and migration scenarios for IPv4-based IP Multimedia Subsystem (IMS) implementations
Architecture
Rel-16TS5GCUpdated 2026-07-25