| 摘要 |
In the case where communication is performed using a plurality of frequency bands, reservation of radio resources to be used for transmission of control signals is facilitated. A radio communication apparatus (10) specifies a radio resource area in which a radio communication apparatus (20) searches for a control signal, on the basis of information about the use of a plurality of frequency bands. Then, the radio communication apparatus (10) transmits a control signal addressed to the radio communication apparatus (20) in the specified radio resource area. The radio communication apparatus (20) calculates the specified radio resource area on the basis of the information about the use of the plurality of frequency bands. Then, the radio communication apparatus (20) searches signals in the calculated radio resource area, out of signals received from the radio communication apparatus (10), and thereby detects the control signal addressed to the radio communication apparatus (20). |
