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Showing posts from July, 2023
  gNodeB Split Architecture with F1 Interface : - F1 Interface connect to gNodeB CU to gNodeB DU. This Interface is applicable to the CU-DU Split gNodeB architecture. Control Plane F1-C allow signalling b/w the CU and DU while User Plane F1-U allow to transfer the user data b/w CU and DU. F1 interface is an open interface, and the end point can be from different vendors.   Distributed Unit (DU): - Distributed Unit support for the lower layer of the gNodeB protocol stack such as RLC, MAC, and Physical layer and it’s deployed close to RU Radio Unit on the site in field. Centralized Unit: - Centralized Unit provides support for the higher layer of gNodeB protocol stack such as SDAP, RLC, RRC. CU deployed in cloud to integrated with core network UPF.   Note: - SDAP Layer is not include when CU is connected to the 4G Core Network. SDAP Layer is work only with 5G Core Network. Note: - Single CU can be connect with single gNodeB but one CU can be connecting mult...