WIRELESS COMMUNICATION SYSTEM, GATEWAY DEVICE, MOBILITY MANAGEMENT ENTITY, AND COMMUNICATION CONTROL METHOD

摘要

Provided is a radio communication system, a gateway device, a mobility management entity, and a communication control method in which, even if a huge number of user devices (UE) are connected to a radio network such as in the CIoT, an idle user device can be quickly returned to a connected state while ensuring the flexibility of adapting to a future radio network architecture. A communication control method includes transmitting in which S/PGW transmits to MME a delete session response containing ESM Context of a session upon receiving from the MME a delete session request that requests deletion of the session for UE; transmitting in which the MME transmits to the S/PGW a create session request containing the ESM Context in response to a start of the process of returning the UE from an idle state to a connected state; and resetting in which the S/PGW resets the session based on the ESM Context contained in the create session request received from the MME.