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 26.192
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Comfort noise aspects
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.193
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Source controlled rate operation
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.194
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Voice Activity Detector (VAD)
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.201
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Frame structure
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.202
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Interface to Iu, Uu and Nb
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.204
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; ANSI-C code
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.223
Telepresence using the IP Multimedia Subsystem (IMS); Media handling and interaction
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.226
Cellular text telephone modem; General description
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.230
Cellular text telephone modem; Transmitter bit exact C-code
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.231
Cellular text telephone modem; Minimum performance requirements
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.233
Transparent end-to-end Packet-switched Streaming service (PSS); General description
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.234
Transparent end-to-end Packet-switched Streaming Service (PSS); Protocols and codecs
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.237
IP Multimedia Subsystem (IMS) based Packet Switch Streaming (PSS) and Multimedia Broadcast/Multicast Service (MBMS) User Service; Protocols
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.238
Uplink streaming
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.243
ANSI-C code for the fixed-point distributed speech recognition extended advanced front-end
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.244
Transparent end-to-end packet switched streaming service (PSS); 3GPP file format (3GP)
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.245
Transparent end-to-end Packet switched Streaming Service (PSS); Timed text format
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.246
Transparent end-to-end Packet-switched Streaming Service (PSS); 3GPP SMIL language profile
Codecs & Media
Rel-15TSCodecs & 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-15TSCodecs & MediaUpdated 2026-07-26
TS 26.259
Subjective test methodologies for the evaluation of immersive audio systems
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26