LTE Call Flow explained
The call flow in the LTE network is unique among mobile communication standards and represents the signaling and sessions established across the network.
The LTE call flow navigates over the elements of the network going through certain steps in order to complete its end-to-end signaling from the user equipment (UE) all the way to the rest of the network components.
Further, we will discuss the following topics:
The main components of the LTE network
These elements communicate with each other through interfaces, such as S1 MME, S6a and others to set up signaling and session.
The communication starts with eNodeB and the UE requesting Radio Resource Connection (RRC LTE). It goes all the way to the core network components that exchange some messages with each other. At the end of the call flow the UE establishes a successful connection to the network through the GPRS Tunnelling Protocol (GTP) and the buffered data will be passed to the UE LTE call flow architecture.