EMM State of Device in CoreNetwork
Understanding MME States in the EPC: EMM vs. ECM In the LTE Evolved Packet Core (EPC), the Mobility Management Entity (MME) is the brain of the control plane. To manage a device (UE) efficiently, the MME uses two parallel state machines: EPS Mobility Management (EMM) and EPS Connection Management (ECM). Think of it this way: EMM determines if you are “checked in” to the network, while ECM determines if you are “actively talking” to it. ...