| 摘要 |
PROBLEM TO BE SOLVED: To allow a radio terminal device to cope with frequency variations in radio link communication quality when the radio terminal device uses part of all frequency bands available to a radio base station device.SOLUTION: A radio terminal device comprises: a radio unit 10 that is able to select any part of frequency bands from all frequency bands to use it for radio communication; and a communication control unit 11 that receives information indicating a communication frequency band used for radio communication from a radio base station device. The radio unit 10 performs radio communication with the radio base station device using the communication frequency band notified by the radio base station device. |
