TS 38.421
NG-RAN; Xn layer 1
Rel-16TS5G NRApproved
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Versions
| Version | Release | Date | Status |
|---|---|---|---|
| 19.0.0 | Rel-19 | 2026-07-26 | Approved |
| 18.0.0 | Rel-18 | 2026-07-25 | Approved |
| 17.0.0 | Rel-17 | 2026-07-25 | Approved |
| 16.0.0 | Rel-16 | 2026-07-25 | Approved |
| 15.1.0 | Rel-15 | 2026-07-25 | Approved |
Related Specifications
TS 38.101-1
NR; User Equipment (UE) radio transmission and reception; Part 1: Range 1 Standalone
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Rel-20TS5G-AdvancedUpdated 2026-07-26
TS 38.101-2
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TS 38.101-3
NR; User Equipment (UE) radio transmission and reception; Part 3: Range 1 and Range 2 Interworking operation with other radios
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TS 38.101-5
NR; User Equipment (UE) radio transmission and reception; Part 5: Satellite access Radio Frequency (RF) and performance requirements
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TS 38.104
NR; Base Station (BS) radio transmission and reception
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TS 38.133
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TS 38.141-1
NR; Base Station (BS) conformance testing Part 1: Conducted conformance testing
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TS 38.141-2
NR; Base Station (BS) conformance testing Part 2: Radiated conformance testing
Architecture
Rel-20TS5G-AdvancedUpdated 2026-07-26