Release Rel-17
5G NRExtends 5G NR to new device classes and satellite access.
Frozen 2022-03-231,408 specifications
Key features: RedCap (NR-Light), NR-NTN, multicast/broadcast, XR support
All SeriesSeries 21Series 22Series 23Series 24Series 26Series 27Series 28Series 29Series 31Series 32Series 33Series 34Series 35Series 36Series 37Series 38
TS 29.204
Signalling System No. 7 (SS7) security gateway; Architecture, functional description and protocol details
Physical Layer
Rel-17TS5GCUpdated 2026-07-25
TS 29.205
Application of Q.1900 series to bearer independent Circuit Switched (CS) core network architecture; Stage 3
Physical Layer
Rel-17TS5GCUpdated 2026-07-25
TS 29.212
Policy and Charging Control (PCC); Reference points
Physical Layer
Rel-17TS5GCUpdated 2026-07-25
TS 29.213
Policy and charging control signalling flows and Quality of Service (QoS) parameter mapping
Physical Layer
Rel-17TS5GCUpdated 2026-07-25
TS 29.214
Policy and charging control over Rx reference point
Physical Layer
Rel-17TS5GCUpdated 2026-07-25
TS 29.215
Policy and Charging Control (PCC) over S9 reference point; Stage 3
Physical Layer
Rel-17TS5GCUpdated 2026-07-25
TS 29.217
Policy and Charging Control (PCC); Congestion reporting over Np reference point
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 29.219
Policy and charging control: Spending limit reporting over Sy reference point
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 29.222
Common API Framework for 3GPP Northbound APIs
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 29.228
IP Multimedia (IM) Subsystem Cx and Dx Interfaces; Signalling flows and message contents
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 29.229
Cx and Dx interfaces based on the Diameter protocol; Protocol details
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 29.230
Diameter applications; 3GPP specific codes and identifiers
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 29.231
Application of SIP-I Protocols to Circuit Switched (CS) core network architecture; Stage 3
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 29.232
Media Gateway Controller (MGC) - Media Gateway (MGW) interface; Stage 3
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 29.235
Interworking between SIP-I based circuit-switched core network and other networks
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 29.238
Interconnection Border Control Functions (IBCF) - Transition Gateway (TrGW) interface, Ix interface; Stage 3
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 29.240
3GPP Generic User Profile (GUP); Stage 3; Network
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 29.244
Interface between the Control Plane and the User Plane nodes
Interface
Rel-17TS5GCUpdated 2026-07-25
TS 29.250
Nu reference point between SCEF and PFDF for sponsored data connectivity
Architecture
Rel-17TS5GCUpdated 2026-07-25
TS 29.251
Gw and Gwn reference point for sponsored data connectivity
Architecture
Rel-17TS5GCUpdated 2026-07-25