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 38.521-1
NR; User Equipment (UE) conformance specification; Radio transmission and reception; Part 1: Range 1 standalone
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.521-2
NR; User Equipment (UE) conformance specification; Radio transmission and reception; Part 2: Range 2 standalone
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.521-3
NR; User Equipment (UE) conformance specification; Radio transmission and reception; Part 3: Range 1 and Range 2 Interworking operation with other radios
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.521-4
NR; User Equipment (UE) conformance specification; Radio transmission and reception; Part 4: Performance
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.522
NR; User Equipment (UE) conformance specification; Applicability of radio transmission, radio reception and radio resource management test cases
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.523-1
5GS; User Equipment (UE) conformance specification; Part 1: Protocol
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.523-2
5GS; User Equipment (UE) conformance specification; Part 2: Applicability of protocol test cases
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.523-3
5GS; User Equipment (UE) conformance specification; Part 3: Protocol Test Suites
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.533
NR; User Equipment (UE) conformance specification; Radio Resource Management (RRM)
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.806
Study of separation of NR Control Plane (CP) and User Plane (UP) for split option 2
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.810
NR; Study on test methods
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.811
Study on New Radio (NR) to support non-terrestrial networks
Architecture
Rel-15TSNTNUpdated 2026-07-25
TS 38.812
Study on Non-Orthogonal Multiple Access (NOMA) for NR
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.813
New frequency range for NR (3.3-4.2 GHz)
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.814
New frequency range for NR (4.4-5.0 GHz)
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.815
New frequency range for NR (24.25-29.5 GHz)
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.816
Study on Central Unit (CU) - Distributed Unit (DU) lower layer split for NR
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.817-01
General aspects for User Equipment (UE) Radio Frequency (RF) for NR
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.817-02
General aspects for Base Station (BS) Radio Frequency (RF) for NR
Architecture
Rel-15TS5G NRUpdated 2026-07-25
TS 38.822
NR; User Equipment (UE) feature list
Architecture
Rel-15TS5G NRUpdated 2026-07-25