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 26.412
Source code for 3GP file format
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.430
Timed graphics
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.441
Codec for Enhanced Voice Services (EVS); General overview
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.442
Codec for Enhanced Voice Services (EVS); ANSI C code (fixed-point)
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.443
Codec for Enhanced Voice Services (EVS); ANSI C code (floating-point)
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.444
Codec for Enhanced Voice Services (EVS); Test sequences
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.445
Codec for Enhanced Voice Services (EVS); Detailed algorithmic description
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.446
Codec for Enhanced Voice Services (EVS); Adaptive Multi-Rate - Wideband (AMR-WB) backward compatible functions
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.447
Codec for Enhanced Voice Services (EVS); Error concealment of lost packets
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.448
Codec for Enhanced Voice Services (EVS); Jitter Buffer Management
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.449
Codec for Enhanced Voice Services (EVS); Comfort Noise Generation (CNG) aspects
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.450
Codec for Enhanced Voice Services (EVS); Discontinuous Transmission (DTX)
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.451
Codec for Enhanced Voice Services (EVS); Voice Activity Detection (VAD)
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.453
Codec for Enhanced Voice Services (EVS); Speech codec frame structure
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.454
Codec for Enhanced Voice Services (EVS); Interface to Iu, Uu, Nb and Mb
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.818
Virtual Reality (VR) streaming audio; Characterization test results
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.843
Codec for Enhanced Voice Services (EVS); Study on non-bit-exact conformance criteria and tools for floating-point EVS codec
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.850
MBMS for Internet of Things (IoT)
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.861
Investigations on test methodologies for immersive audio systems
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.881
Forward Error Correction (FEC) for Mission Critical Services
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26