Foreword1 Scope2 References3 Definitions4 Working assumptions4 Working assumptions4.1 General4.2 Iu Interface4.3 UMTS Mobility Management (UMM)4.3 UMTS Mobility Management (UMM)4.3.1 Location Management and Mobility Management concept overview4.3.2 Description of the Location Management and Mobility Management Concept4.3.3 Relationship between MM and SM states for an UE4.3.4 Requirement in case of temporarily loss of coverage of packet UE4.3.5 MM functionality in different UE service states4.3.6 The RRC state machine4.3.7 Relationship between CS and PS service states and RRC state for an UE4.3.8 Service registration and location update4.3.9 Paging initiated by CN4.3.10 Signalling connection establishment4.3.10a CS Domain Signalling Requirements (in particular relating to handover)4.3.11 Relations between SRNS relocation and Location registration4.3.12 Requirements on Identifiers for UMTS and GSM4.3.13 Use of TMSI signature4.3.14 Signalling procedures4.3.15 (void)4.3.16 UTRAN coordination4.4 UMTS call control4.5 Core network layer 34.6 Structure of radio interface layer 34.7 Alternate Access technologies to UTRAN4.8 Location of the IP compression function in UMTS4.9 Short Message Service for UMTS4.10a Cell Broadcast Service in UMTS4.10 Mobile IP for UMTS/GPRS End Users4.11 Allowed network and terminal configurations5 UMTS to UMTS handover for circuit switched services6 Interoperability between GSM and UMTSA.1 GLR Concept 4.3.15 (void) 23.1213GPPArchitectural requirements for Release 1999Release 1999TS Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM