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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.
Universal Mobile Telecommunications System (UMTS); Terminal Conformance Specification; Radio Transmission and Reception (FDD) (3GPP TS 34.121 version 3.8.0 Release 1999)
Standard published on 31.3.2002
Selected format:Universal Mobile Telecommunications System (UMTS); Terminal Conformance Specification, Radio Transmission and Reception (FDD) (3GPP TS 34.121 version 3.9.0 Release 1999)
Standard published on 24.6.2002
Selected format:Universal Mobile Telecommunications System (UMTS); Terminal Conformance Specification; Radio Transmission and Reception (FDD) (3GPP TS 34.121 version 4.0.0 Release 4)
Standard published on 20.6.2003
Selected format:Universal Mobile Telecommunications System (UMTS); Terminal Conformance Specification, Radio Transmission and Reception (FDD) (3GPP TS 34.121 version 4.1.0 Release 4)
Standard published on 30.9.2003
Selected format:Universal Mobile Telecommunications System (UMTS); Terminal Conformance Specification; Radio Transmission and Reception (FDD) (3GPP TS 34.121 version 5.0.0 Release 5)
Standard published on 20.6.2003
Selected format:Universal Mobile Telecommunications System (UMTS); Terminal Conformance Specification, Radio Transmission and Reception (FDD) (3GPP TS 34.121 version 5.1.1 Release 5)
Standard published on 30.9.2003
Selected format:Universal Mobile Telecommunications System (UMTS); Terminal Conformance Specification; Radio Transmission and Reception (FDD) (3GPP TS 34.121 version 5.2.0 Release 5)
Standard published on 31.12.2003
Selected format:Universal Mobile Telecommunications System (UMTS); Terminal Conformance Specification, Radio Transmission and Reception (FDD) (3GPP TS 34.121 version 5.3.1 Release 5)
Standard published on 30.4.2004
Selected format:Universal Mobile Telecommunications System (UMTS); Terminal Conformance Specification, Radio Transmission and Reception (FDD) (3GPP TS 34.121 version 5.4.0 Release 5)
Standard published on 30.6.2004
Selected format:Universal Mobile Telecommunications System (UMTS); Terminal Conformance Specification, Radio Transmission and Reception (FDD) (3GPP TS 34.121 version 5.5.0 Release 5)
Standard published on 30.9.2004
Selected format:Latest update: 2026-06-16 (Number of items: 2 283 261)
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