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 38.874
NR; Study on integrated access and backhaul
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.889
Study on NR-based access to unlicensed spectrum
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.900
Study on channel model for frequency spectrum above 6 GHz
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.901
Study on channel model for frequencies from 0.5 to 100 GHz
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.903
NR; Derivation of test tolerances and measurement uncertainty for User Equipment (UE) conformance test cases
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.905
NR; Derivation of test points for radio transmission and reception User Equipment (UE) conformance test cases
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.912
Study on New Radio (NR) access technology
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.913
Study on scenarios and requirements for next generation access technologies
Architecture
Rel-15TS5G NRUpdated 2026-07-25