Release Rel-15
5G NRThe foundational 5G New Radio release, defining the NR air interface and 5G core.
Frozen 2018-06-14137 specifications in series 26
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 26.911
Codec(s) for Circuit-Switched (CS) multimedia telephony service; Terminal implementor’s guide
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.914
Multimedia telephony over IP Multimedia Subsystem (IMS); Optimization opportunities
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.917
Multimedia Broadcast Multicast Services (MBMS) and Packet-switched Streaming Service (PSS) enhancements to support television services
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.918
Virtual Reality (VR) media services over 3GPP
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.919
Study on media handling aspects of conversational services in 5G systems
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.922
Video telephony robustness improvements extensions; Performance evaluation
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.923
Study on media handling aspects of IP Multimedia Subsystem (IMS) based telepresence
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.924
Multimedia telephony over IP Multimedia Subsystem (IMS); Study on improved end-to-end Quality of Service (QoS) handling for Multimedia Telephony Service for IMS (MTSI)
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.929
QoE parameters and metrics relevant to the Virtual Reality (VR) user experience
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.931
Evaluation of Additional Acoustic Tests for Speech Telephony
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.935
Packet Switched (PS) conversational multimedia applications; Performance characterisation of default codecs
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.936
Performance characterization of 3GPP audio codecs
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.937
Transparent end-to-end Packet-switched Streaming Service (PSS); Real-time Transport Protocol (RTP) usage model
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.938
Packet-switched Streaming Service (PSS); Improved support for dynamic adaptive streaming over HTTP in 3GPP
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.939
Guidelines on the Framework for Live Uplink Streaming (FLUS)
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.943
Recognition performance evaluations of codecs for Speech Enabled Services (SES)
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.944
End-to-end multimedia services performance metrics
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.946
Multimedia Broadcast/Multicast Service (MBMS) user service guidelines
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.947
Multimedia Broadcast/Multicast Service (MBMS); Selection and characterisation of application layer Forward Error Correction (FEC)
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.948
Study on video enhancements in 3GPP multimedia services
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26