Mobile communication network system communication control method and non temporary computer readable medium storing program therefor

摘要

When a mobile management node MME (22) which is a mobile management node arranged on the core network side to perform management and control of mobile communication receives a detach request signal from a mobile station UE (27) requesting detachment the connection between the mobile station UE (27) and the core network is disconnected by omitting the detachment process on the core network side and releasing only the wireless line to the mobile station UE (27) with the core network side communication session which was set when the mobile station UE (27) was first attached being maintained as is. Subsequently when an attach request signal requesting attachment is received from the mobile station (27) the attachment process on the core network side is omitted and only the wireless line is set with the core network side communication session which was maintained for the mobile station (27) being used as is.