Wireless communication system, base station apparatus, mobile station apparatus, communication control method, and communication control program

A mobile station apparatus comprising:

• a communication unit configured to communicate with a second base station apparatus using at least one of common frequency bands and at least one of dedicated frequency bands, the at least one of the common frequency bands being used by a first base station apparatus and the second base station apparatus, the at least one of the dedicated frequency bands being unused by the first base station apparatus,
• a radio control unit configured to control a communication between the mobile station apparatus and the second base station apparatus so as to use all of a plurality of the common frequency bands, the communication using a carrier aggregation technology, the communication being performed in case that a radio quality of a part of the plurality of the common frequency bands in the mobile station apparatus is greater than the predetermined threshold value, and control the communication so as to use the at least one of the dedicated frequency bands, the communication being performed in case that the radio quality is less than the predetermined threshold value.

A communication control method performed by a mobile station apparatus, the communication control method comprising:

• communicating with a second base station apparatus using at least one of common frequency bands and at least one of dedicated frequency bands, the at least one of the common frequency bands being used by a first base station apparatus and the second base station apparatus, the at least one of the dedicated frequency bands being unused by the first base station apparatus;
• and
• controlling a communication between the mobile station apparatus and the second base station apparatus so as to use all of a plurality of the common frequency bands, the communication using a carrier aggregation technology, the communication being performed in case that a radio quality of a part of the plurality of the common frequency bands in the mobile station apparatus is greater than the predetermined threshold value, and controlling the communication so as to use the at least one of the dedicated frequency bands, the communication being performed in case that the radio quality is less than the predetermined threshold value.

A non-transitory computer-readable recording medium storing a communication control program, the communication control program make a computer of a mobile station apparatus perform:

• communicating with a second base station apparatus using at least one of common frequency bands and at least one of dedicated frequency bands, the at least one of the common frequency bands being used by a first base station apparatus and the second base station apparatus, the at least one of the dedicated frequency bands being unused by the first base station apparatus;
• and
• controlling a communication between the mobile station apparatus and the second base station apparatus so as to use all of a plurality of the common frequency bands, the communication using a carrier aggregation technology, the communication being performed in case that a radio quality of a part of the plurality of the common frequency bands in the mobile station apparatus is greater than the predetermined threshold value, and controlling the communication so as to use the at least one of the dedicated frequency bands, the communication being performed in case that the radio quality is less than the predetermined threshold value.