Communication control device, communication control method, communication system, and terminal device

A communication control method performed by a communication control device configured to control a secondary communication service to be provided at least near an area where a first primary communication service is provided, the method comprising:

• increasing a transmission power of the secondary communication service upon performing a switching from subscriber identity module (SIM) information corresponding to the first primary communication service to SIM information corresponding to a second primary communication service in a terminal device using a communication service by using any SIM information switched between a plurality of SIM information.

A terminal device comprising:

• a communication unit configured to communicate by using any subscriber identity module (SIM) information switched between a plurality of SIM information corresponding to a plurality of primary communication services;
• and
• a control unit configured to, when SIM information used by the communication unit is switched from first SIM information corresponding to a first primary communication service to second SIM information corresponding to a second primary communication service, report the switching to a communication control device for controlling a transmission power of a secondary communication service to be provided at least near an area where the first primary communication service is provided.

A communication control device for providing a first primary communication service to a terminal device that communicates by using any subscriber identity module (SIM) information switched between a plurality of SIM information corresponding to a plurality of primary communication services, comprising:

• an instruction unit configured to instruct the terminal device to switch from SIM information corresponding to the first primary communication service to SIM information corresponding to a second primary communication service depending on a communication quality of the first primary communication service for the terminal device;
• and
• a secondary control unit configured to cause a node to increase a transmission power of a secondary communication service in accordance with the instruction by the instruction unit, the node being configured to control the transmission power of the secondary communication service provided at least near an area where the first primary communication service is provided.