DU (Distributed unit)?

DU gives assistance for the lower layers of the protocol stack, for example, RLC, MAC and Physical layer. This is the distributed unit that sits near to the RU and runs the RLC, MAC, and segments of the PHY layer. Each DU can uphold at least one cell, so one gNB can handle many cells, not at all like the 4G BTS. This logical node incorporates a subset of the eNB/gNB capacities, contingent upon the useful split alternative, and its activity is constrained by the CU.