Mobile Communication Control Apparatus, Mobile Communication System, Mobile Communication Control Method, and Mobile Communication Control Program

When the priority class is set to a mobile terminal that has moved from cell to cell and even if an HLR is in a congestion state, a communication service is provided to the mobile terminal on a priority basis. A location registration signal, which is transmitted from a mobile terminal (2) that has moved from another area, and which is to be transmitted to an HLR (30), is received, and the apparatus corresponding to the movement source area is identified based upon the content of the location registration signal. Priority class information indicating whether the transmission process to the HLR is a priority process or a non-priority process is acquired from the identified another mobile communication control apparatus (200), and whether or not the location registration signal should be transmitted to the HLR (30) is determined based upon the acquired priority class information.