Release Rel-18
5G-AdvancedFirst 5G-Advanced release, extending 5G NR with AI/ML, non-terrestrial networks, and reduced-capability devices.
Frozen 2024-03-221,533 specifications
Key features: RedCap enhancements, NR-NTN, XR enhancements, AI/ML for NG-RAN
All SeriesSeries 21Series 22Series 23Series 24Series 26Series 27Series 28Series 29Series 31Series 32Series 33Series 34Series 35Series 36Series 37Series 38
TS 26.246
Transparent end-to-end Packet-switched Streaming Service (PSS); 3GPP SMIL language profile
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.247
Transparent end-to-end Packet-switched Streaming Service (PSS); Progressive Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH)
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.249
Immersive Audio for Split Rendering Scenarios; Detailed Algorithmic Description of Split Rendering Functions
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.250
Codec for Immersive Voice and Audio Services (IVAS); General overview
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.251
Codec for Immersive Voice and Audio Services (IVAS); C code (fixed-point)
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.252
Codec for Immersive Voice and Audio Services (IVAS); Test sequences
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.253
Codec for Immersive Voice and Audio Services (IVAS); Detailed Algorithmic Description including RTP payload format and SDP parameter definitions
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.254
Codec for Immersive Voice and Audio Services (IVAS); Rendering
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.255
Codec for Immersive Voice and Audio Services (IVAS); Error concealment of lost packets
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.256
Codec for Immersive Voice and Audio Services (IVAS); Jitter Buffer Management
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.258
Codec for Immersive Voice and Audio Services (IVAS); C code (floating-point)
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.259
Subjective test methodologies for the evaluation of immersive audio systems
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.260
Objective test methodologies for the evaluation of immersive audio systems
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.261
Terminal audio quality performance requirements for immersive audio services
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.264
IMS-based AR Real-Time Communication
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.267
eCall data transfer; In-band modem solution; General description
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.268
eCall data transfer; In-band modem solution; ANSI-C reference code
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.269
eCall data transfer; In-band modem solution; Conformance testing
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.273
ANSI-C code for the fixed-point Extended Adaptive Multi-Rate - Wideband (AMR-WB+) speech codec
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26
TS 26.274
Audio codec processing functions; Extended Adaptive Multi-Rate - Wideband (AMR-WB+) speech codec; Conformance testing
Codecs & Media
Rel-18TSCodecs & MediaUpdated 2026-07-26