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TechSpec
  • Foreword
  • 1 Scope
  • 2 References
  • 3 Definitions, symbols and abbreviations
  • 4 Multi-Radio Dual Connectivity
  • 5 Layer 1 related aspects
  • 6 Layer 2 related aspects
  • 7 RRC related aspects
  • 8 Bearer handling aspects
  • 9 Security related aspects
  • 10 Multi-Connectivity operation related aspects
    • 10.1 General
    • 10.2 Secondary Node Addition
    • 10.3 Secondary Node Modification (MN/SN initiated)
      • 10.3.1 EN-DC
      • 10.3.2 MR-DC with 5GC
    • 10.4 Secondary Node Release (MN/SN initiated)
    • 10.5 Secondary Node Change (MN/SN initiated)
      • 10.5.1 EN-DC
      • 10.5.2 MR-DC with 5GC
    • 10.6 PSCell change
    • 10.7 Inter-Master Node handover with/without Secondary Node change
    • 10.8 Master Node to eNB/gNB Change
    • 10.9 eNB/gNB to Master Node change
    • 10.10 RRC Transfer
    • 10.11 Secondary RAT data volume reporting
    • 10.12 Activity Notification
    • 10.13 Notification Control Indication
    • 10.14 PDU Session Split at UPF
    • 10.15 F1-C Traffic Transfer
    • 10.16 Support of inter-system handover involving EN-DC or MR-DC with 5GC
    • 10.17 Inter-Master Node RRC Resume without Secondary Node change
    • 10.18 Self-optimisation for PSCell change
  • 11 Service related aspects
  • 12 X2/Xn Interface related aspects
  • 13 Other aspects

1 Scope

37.3403GPPMulti-connectivityNROverall descriptionRelease 17Stage 2TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

The present document provides an overview of the multi-connectivity operation using E-UTRA and NR radio access technologies. Details of the network and radio interface protocols are specified in companion specifications of the 36 and 38 series.