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3GPP (3rd Generation Partnership Project)
organizational structure

each Technical Body ( TSG: Technical Specification Group, and  WG: Working Group)
has a link to dedicated page

TSG SA
WG SA1     WG SA2     WG SA3     WG SA4     WG SA5     WG SA6    


TSG CT
WG CT1     WG CT3     WG CT4     WG CT6    


TSG RAN
WG RAN1     WG RAN2     WG RAN3     WG RAN4     WG RAN5     WG RAN6