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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.
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Architectural requirements (3GPP TS 23.221 version 8.6.0 Release 8)
Standard published on 8.1.2010
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Architectural requirements (3GPP TS 23.221 version 8.7.0 Release 8)
Standard published on 31.3.2010
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Architectural requirements (3GPP TS 23.221 version 8.8.0 Release 8)
Standard published on 29.3.2011
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Architectural requirements (3GPP TS 23.221 version 8.9.0 Release 8)
Standard published on 10.1.2013
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Architectural requirements (3GPP TS 23.221 version 9.2.0 Release 9)
Standard published on 8.1.2010
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Architectural requirements (3GPP TS 23.221 version 9.3.0 Release 9)
Standard published on 31.3.2010
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Architectural requirements (3GPP TS 23.221 version 9.4.0 Release 9)
Standard published on 22.6.2010
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Architectural requirements (3GPP TS 23.221 version 9.5.0 Release 9)
Standard published on 10.1.2013
Selected format:LTE; 5G; Common API Framework for 3GPP Northbound APIs (3GPP TS 23.222 version 15.2.0 Release 15)
Standard published on 3.7.2018
Selected format:LTE; 5G; Common API Framework for 3GPP Northbound APIs (3GPP TS 23.222 version 15.3.0 Release 15)
Standard published on 4.10.2018
Selected format:Latest update: 2026-07-26 (Number of items: 2 290 396)
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