Release Rel-15
5G NRThe foundational 5G New Radio release, defining the NR air interface and 5G core.
Frozen 2018-06-14126 specifications in series 29
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 29.388
V2X Control Function to Home Subscriber Server (HSS) aspects (V4); Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.389
Inter-V2X Control Function Signalling aspects (V6); Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.405
Nq and Nq' Application Protocol (Nq-AP); Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.413
Application of the NG Application Protocol (NGAP) to non-3GPP access
Protocol
Rel-15TS5GCUpdated 2026-07-25
TS 29.414
Core network Nb data transport and transport signalling
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.415
Core network Nb interface user plane protocols
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.468
Group Communication System Enablers for LTE (GCSE_LTE); MB2 reference point; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.500
5G System; Technical Realization of Service Based Architecture; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.501
5G System; Principles and Guidelines for Services Definition; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.502
5G System; Session Management Services; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.503
5G System; Unified Data Management Services; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.504
5G System; Unified Data Repository Services; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.505
5G System; Usage of the Unified Data Repository services for Subscription Data; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.507
5G System; Access and Mobility Policy Control Service; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.508
5G System; Session Management Event Exposure Service; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.509
5G System; Authentication Server Services; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.510
5G System; Network function repository services; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.511
5G System; Equipment Identity Register Services; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.512
5G System; Session Management Policy Control Service; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.513
5G System; Policy and Charging Control signalling flows and QoS parameter mapping; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25