We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
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+); GSM radio aspects base station system equipment specification (3GPP TS 51.021 version 4.2.0 Release 4)
Standard published on 30.11.2002
Selected format:Digital cellular telecommunications system (Phase 2+); GSM radio aspects base station system equipment specification (3GPP TS 51.021 version 4.3.0 Release 4)
Standard published on 28.2.2003
Selected format:Digital cellular telecommunications system (Phase 2+); GSM radio aspects base station system equipment specification (3GPP TS 51.021 version 4.4.0 Release 4)
Standard published on 30.6.2003
Selected format:Digital cellular telecommunications system (Phase 2+); Base Station System (BSS) equipment specification; Radio aspects (3GPP TS 51.021 version 4.5.0 Release 4)
Standard published on 30.11.2005
Selected format:Digital cellular telecommunications system (Phase 2+); Base Station System (BSS) equipment specification; Radio aspects (3GPP TS 51.021 version 4.6.0 Release 4)
Standard published on 7.7.2009
Selected format:Digital cellular telecommunications system (Phase 2+); Base Station System (BSS) equipment specification; Radio aspects (3GPP TS 51.021 version 4.7.0 Release 4)
Standard published on 28.6.2010
Selected format:Digital cellular telecommunications system (Phase 2+); GSM radio aspects base station system equipment specification (3GPP TS 51.021 version 5.0.0 Release 5)
Standard published on 30.6.2002
Selected format:Digital cellular telecommunications system (Phase 2+); GSM radio aspects base station system equipment specification (3GPP TS 51.021 version 5.1.0 Release 5)
Standard published on 30.11.2002
Selected format:Digital cellular telecommunications system (Phase 2+); GSM radio aspects base station system equipment specification (3GPP TS 51.021 version 5.2.0 Release 5)
Standard published on 28.2.2003
Selected format:Digital cellular telecommunications system (Phase 2+); GSM radio aspects base station system equipment specification (3GPP TS 51.021 version 5.3.0 Release 5)
Standard published on 30.6.2003
Selected format:Latest update: 2026-03-20 (Number of items: 2 268 518)
© Copyright 2026 NORMSERVIS s.r.o.