ETSI TS 132 421

ETSI TS 132 421 Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Telecommunication management; Subscriber and equipment trace; Trace concepts and requirements (3GPP TS 32.421 version 13.2.0 Release 13)

standard by European Telecommunications Standards Institute, 01/01/2020