Communication control method, communication control device, and communication system for causing readiness for movement of a communication terminal

A communication control device in a communication system including a node for communicating with a communication terminal and executing request processing from the communication terminal without requesting another node for processing, the communication control device comprising:

• circuitry configured to
• make a change so that a first destination node, being a node linked to a destination wireless base station, and a second destination node, being a node linked to a wireless base station located within a specified range of the destination wireless base station, become ready to receive a request from the communication terminal and execute request processing, the making of the change being performed in response to a notification received by a node changing device from a management device configured to perform mobility management on the communication terminal when handover processing of the communication terminal is detected by the management device,
• wherein the circuitry is configured to make the change such that the first and second destination nodes activate a virtual machine for executing request processing,
• the destination wireless base station pre-stores identifiers relating to other wireless base stations in the specified range of the destination wireless base station, and
• the wireless base station located in the specified range of the destination wireless base station is identified in accordance with the destination wireless base station.

A communication system including a node for communicating with a communication terminal and executing request processing from the communication terminal without requesting another node for processing, and a communication control device for controlling the node, the communication control device comprising:

• circuitry configured to
• make a change so that a first destination node, being a node linked to a destination wireless base station, and a second destination node, being a node linked to a wireless base station located within a specified range of the destination wireless base station, become ready to receive a request from the communication terminal and execute request processing, the making of the change being performed in response to a notification received by a node changing device from a management device configured to perform mobility management on the communication terminal when handover processing of the communication terminal is detected by the management device, wherein
• the circuitry is configured to make the change such that the first and second destination nodes activate a virtual machine for executing request processing,
• the destination wireless base station pre-stores identifiers relating to other wireless base stations in the specified range of the destination wireless base station,
• the wireless base station located in the specified range of the destination wireless base station is identified in accordance with the destination wireless base station, and
• when the node becomes ready for request processing, the node receives a request from the communication terminal and executes request processing.