ETSI TS 122 129
ETSI TS 122 129
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Handover requirements between UTRAN and GERAN or other radio systems (3GPP TS 22.129 version 3.6.0 Release 1999)
standard published 12/01/2001 by European Telecommunications Standards Institute
