Radio communication system, radio base station apparatus and mobile terminal apparatus

A radio base station apparatus performing radio communication with a mobile terminal apparatus with use of a communication system of which a frequency band is configured by adding or deleting fundamental frequency blocks, the radio base station apparatus comprising:

• a first transmission circuit section configured to control transmission of information to a first fundamental frequency block to which FDD-based radio communication is applied;
• a second transmission circuit section configured to control transmission of information to a second fundamental frequency block to which TDD-based or half duplex FDD-based radio communication is applied;
• and
• a resource mapping section configured to map control information pieces for controlling the radio communication between the radio base station apparatus and the mobile terminal apparatus, together to either of the first fundamental frequency block and the second fundamental frequency block.

A mobile terminal apparatus performing radio communication with a radio base station apparatus with use of a communication system of which a frequency band is configured by adding or deleting fundamental frequency blocks, the mobile terminal apparatus comprising:

• a first transmission section configured to control transmission of information to a first fundamental frequency block to which FDD-based radio communication is applied;
• a second transmission section configured to control transmission of information to a second fundamental frequency block to which TDD-based or half duplex FDD-based radio communication is applied;
• and
• a resource mapping section configured to map control information pieces for controlling the radio communication between the radio base station apparatus and the mobile terminal apparatus, together to either of the first fundamental frequency block and the second fundamental frequency block.