A control node for a mobile communication system including one or more communication processing nodes realized on any of one or more physical servers in association with an area in which a mobile communication terminal is present, the one or more communication processing nodes performing a communication process of the mobile communication terminal, the control node comprising: a detection means configured to detect processing load of the communication process performed by the one or more communication processing nodes of each physical server; a node deployment means configured to deploy the one or more communication processing nodes for each area that are realized on the physical server by replication, migration, or addition of anyone of the one or more processing nodes, based on the processing load of the communication process performed by the one or more communication processing nodes detected by the detection means, wherein addition of anyone of the one or more processing nodes indicates that the anyone of the one or more communication processing nodes is realized on the physical server, migration of anyone of the one or more processing nodes indicates that the anyone of the one or more communication processing nodes realized on one or more different physical servers of the one or more physical servers is realized on the physical server, replication of anyone of the one or more processing nodes indicates that the anyone of the one or more communication processing nodes already realized on another one physical server of the one or more physical servers is also realized on the physical server; and a control means configured to perform control to transmit a signal related to the communication process from the mobile communication terminal to the one or more communication processing node deployed in association with the area in which the mobile communication terminal is present by the node deployment means. a detection means configured to detect processing load of the communication process performed by the one or more communication processing nodes of each physical server; a node deployment means configured to deploy the one or more communication processing nodes for each area that are realized on the physical server by replication, migration, or addition of anyone of the one or more processing nodes, based on the processing load of the communication process performed by the one or more communication processing nodes detected by the detection means, wherein addition of anyone of the one or more processing nodes indicates that the anyone of the one or more communication processing nodes is realized on the physical server, migration of anyone of the one or more processing nodes indicates that the anyone of the one or more communication processing nodes realized on one or more different physical servers of the one or more physical servers is realized on the physical server, replication of anyone of the one or more processing nodes indicates that the anyone of the one or more communication processing nodes already realized on another one physical server of the one or more physical servers is also realized on the physical server; and a control means configured to perform control to transmit a signal related to the communication process from the mobile communication terminal to the one or more communication processing node deployed in association with the area in which the mobile communication terminal is present by the node deployment means.