Home > Communication Service Provider Solutions > Enabling Telecom Transformation > RAN Pooling - The case for RAN pooling with Cloud/Virtualized RAN > Better mobility management with C-RAN pooling
UE mobility between cells and cell sites will greatly benefit from low latencies on the F1-C (interface between the DU and CU-CP) and Xn (inter-gNodeB interface), since handover measurements and decisions are made at Layer 3, the Radio Resource Control (RRC) layer, and signaling is exchanged between these nodes over these interfaces to effect handovers. A centralized pooled RAN with vDU and vCU-CP has lower latencies on these interfaces than traditional D-RAN and thus benefits fast handovers the most. The tradeoff being the fronthaul latencies, as compared to D-RAN.
Pooling especially benefits faster handovers in fast-moving mobility scenarios like users on the road, on trains, and in cases with many small cells and fast and frequently-moving UEs between cells, such as private 5G manufacturing deployments with Automated Mobile Robots (AMRs), Automated Guided Vehicles (AGVs), and so on.