SkyCore

Evolved packet core (EPC, Figure 5) is a distributed system of different nodes, each consisting of diverse network functions (NFs) that are required to manage the LTE network. The EPC consists of data and control data planes: the data plane enforces operator policies (e.g., DPI, QoS classes, and accounting) on data traffic to/from the user equipment (UE), whereas the control plane provides key control and management functions such as access control, mobility, and security management.