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Home5G TechnologyE-UTRA-NR Dual Connectivity (EN-DC) | 4G 5G World

E-UTRA-NR Dual Connectivity (EN-DC) | 4G 5G World


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E-UTRAN supports MR-DC via E-UTRA-NR Dual Connectivity (EN-DC), also called MR-DC with EPC, in which a UE is connected to one eNB that acts as a MN and one en-gNB that acts as a SN. The eNB is connected to the EPC via the S1 interface and to the en-gNB via the X2 interface. The en-gNB might also be connected to the EPC via the S1-U interface and other en-gNBs via the X2-U interface.

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