MOBILE COMMUNICATION NETWORK SYSTEM, COMMUNICATION CONTROL METHOD, AND NON-TEMPORARY COMPUTER-READABLE MEDIUM STORING PROGRAM THEREFOR

摘要

In a detach request signal that requests detach being received from the mobile station UE (27), a mobile management node MME (22) arranged on the core network side in order to perform management control of mobile communication omits the detach processing of the core network side, hold a communication session of the core network side set in the mobile terminal having attached, make a connection between the mobile management node MME (22) and the mobile station UE (27) released, disconnect the connection with the mobile station UE (27) and the core network, and in an attach request signal that requests attach being received from the mobile station (27), omits the attach processing in the core network side, uses a held communication session regarding to the mobile station (27) of the core network side and performs the setting of the only radio line.