Traditional hardware-based baseband units have a fixed capacity and a static boundary with an RU, thereby limiting the benefit that can be gained from dynamically pooling baseband processing resources.
The vDU pooling enables a single vDU to support multiple cell-site baseband processing by sharing its baseband processing resources within a baseband cloud and allowing other cell sites and radio technologies to use it.
The difference between a Virtualized DU (VDU) and a traditional DU is that idle processing capacities of a cell can be shared by vDUs in the same baseband pool, reducing the need to purchase additional equipment for each cell site as with traditional DUs. This means that vDUs can be used for multiple cell sites or clusters, while traditional DUs can only serve a few sites.
