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 29.525
5G System; UE Policy Control Service; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.531
5G System; Network Slice Selection Services; Stage 3
Architecture
Rel-15TSNetwork SlicingUpdated 2026-07-25
TS 29.540
5G System; SMS Services; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.551
5G System; Packet Flow Description Management Service; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.554
5G System; Background Data Transfer Policy Control Service; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.561
5G System; Interworking between 5G Network and external Data Networks; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.571
5G System; Common Data Types for Service Based Interfaces; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.572
5G System; Location Management Services; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.573
5G System; Public Land Mobile Network (PLMN) Interconnection; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.594
5G System; Spending Limit Control Service; Stage 3
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.658
SIP Transfer of IP Multimedia Service Tariff Information; Protocol specification
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.827
Study on Policy and Charging for Volume Based Charging
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.890
CT WG3 aspects of 5G System Phase 1
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.891
5G System - Phase 1 CT WG4 Aspects
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.909
Diameter-based protocols usage and recommendations in 3GPP
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.935
Study on User Data Convergence (UDC) data model
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.949
Study on technical aspects on roaming end-to-end scenarios with Voice over LTE (VoLTE) IP Multimedia Subsystem (IMS) and other networks
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 29.994
Recommended infrastructure measures to overcome specific Mobile Station (MS) and User Equipment (UE) faults
Architecture
Rel-15TS5GCUpdated 2026-07-25
TS 31.101
UICC-terminal interface; Physical and logical characteristics
Subscriber Identity
Rel-15TSUICC & Smart CardsUpdated 2026-07-26
TS 31.102
Characteristics of the Universal Subscriber Identity Module (USIM) application
Subscriber Identity
Rel-15TSUICC & Smart CardsUpdated 2026-07-26