UE, MME, communication control method of UE, and communication control method of MME

摘要

First identification information is a detach type for requesting disconnection from a system optimized for Internet of Things (IoT). A procedure includes a step of transmitting a detach request message that includes at least the first identification information to a core network, and a step of receiving a detach accept message from the core network as a response to the detach request message. Thus, a communication procedure such as an attach procedure suitable for a CIoT terminal is provided.