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ETSI - European Telecommunication Standard Institute(ETSI) produces globally-applicable standards for information and telecommunication technologies (ICT) including land, mobile, radio, converged, broadcast and internet technologies.
LTE; 5G; 5GS; User Equipment (UE) conformance specification; Part 1: Protocol (3GPP TS 38.523-1 version 17.9.0 Release 17)
Standard published on 13.10.2026
Selected format:LTE; 5G; 5GS; User Equipment (UE) conformance specification; Part 1: Protocol (3GPP TS 38.523-1 version 18.0.0 Release 18)
Standard published on 19.11.2024
Selected format:LTE; 5G; 5GS; User Equipment (UE) conformance specification; Part 1: Protocol (3GPP TS 38.523-1 version 18.1.2 Release 18)
Standard published on 10.2.2025
Selected format:LTE; 5G; 5GS; User Equipment (UE) conformance specification; Part 1: Protocol (3GPP TS 38.523-1 version 18.2.0 Release 18)
Standard published on 10.2.2025
Selected format:LTE; 5G; 5GS; User Equipment (UE) conformance specification; Part 1: Protocol (3GPP TS 38.523-1 version 18.3.0 Release 18)
Standard published on 5.5.2025
Selected format:LTE; 5G; 5GS; User Equipment (UE) conformance specification; Part 1: Protocol (3GPP TS 38.523-1 version 18.4.0 Release 18)
Standard published on 13.10.2026
Selected format:LTE; 5G; 5GS; User Equipment (UE) conformance specification; Part 1: Protocol (3GPP TS 38.523-1 version 19.2.0 Release 19)
Standard published on 3.11.2025
Selected format:LTE; 5G; 5GS; User Equipment (UE) conformance specification; Part 1: Protocol (3GPP TS 38.523-1 version 19.3.0 Release 19)
Standard published on 18.3.2026
Selected format:LTE; 5G; 5GS; User Equipment (UE) conformance specification; Part 1: Protocol (3GPP TS 38.523-1 version 19.4.0 Release 19)
Standard published on 10.4.2026
Selected format:LTE; 5G; 5GS; User Equipment (UE) conformance specification; Part 1: Protocol (3GPP TS 38.523-1 version 19.5.0 Release 19)
Standard published on 23.9.2026
Selected format:Latest update: 2026-11-10 (Number of items: 2 209 227)
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