Release Rel-17
5G NRExtends 5G NR to new device classes and satellite access.
Frozen 2022-03-231,408 specifications
Key features: RedCap (NR-Light), NR-NTN, multicast/broadcast, XR support
All SeriesSeries 21Series 22Series 23Series 24Series 26Series 27Series 28Series 29Series 31Series 32Series 33Series 34Series 35Series 36Series 37Series 38
TS 37.480
E1 general aspects and principles
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.481
E1 layer 1
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.482
E1 signalling transport
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.483
E1 Application Protocol (E1AP)
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.571-1
User Equipment (UE) conformance specification for UE positioning; Part 1: Conformance test specification
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.571-2
User Equipment (UE) conformance specification for UE positioning; Part 2: Protocol conformance
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.571-3
User Equipment (UE) conformance specification for UE positioning; Part 3: Implementation Conformance Statement (ICS)
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.571-4
User Equipment (UE) conformance specification for UE positioning; Part 4: Test suites
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.571-5
User Equipment (UE) conformance specification for UE positioning; Part 5: Test scenarios and assistance data
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.579-1
Mission Critical (MC) services; Part 1: Common test environment
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.579-2
Mission Critical (MC) services; Part 2: Mission Critical Push To Talk (MCPTT) User Equipment (UE) Protocol conformance specification
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.579-4
Mission Critical (MC) services; Part 4: Test Applicability and Implementation Conformance Statement (ICS) proforma specification
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.579-5
Mission Critical (MC) services; Part 5: Abstract test suite (ATS)
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.579-6
Mission Critical (MC) services; Part 6: Mission Critical Video (MCVideo) User Equipment (UE) Protocol conformance specification
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.579-7
Mission Critical (MC) services; Part 7: Mission Critical Data (MCData) User Equipment (UE) Protocol conformance specification
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.717-33
Rel-17 Dual Connectivity (DC) of x bands (x=1,2) LTE inter-band CA (xDL/xUL) and y bands (y=3-x) NR inter-band CA (yDL/yUL)
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.817
Study on enhancement for data collection for NR and ENDC
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.826
High power UE (power class 2) for EN-DC with 1 LTE band + 1 NR TDD band
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.827
Rel-17 Power Class 2 for EN-DC with xLTE band + yNR DL with 1LTE+1(TDD) NR UL band (x= 2, 3, y=1; x=1, 2, y=2)
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25
TS 37.828
High-power UE operation for fixed-wireless/vehicle-mounted use cases in LTE bands and NR bands
Architecture
Rel-17TSMulti-RATUpdated 2026-07-25