| 摘要 |
A base station device for carrying out bidirectional data communication with a communication terminal device, the base station device comprising: transmission means for carrying out communication of a down link to the communication terminal device by using a multi-carrier signal having data dispersed to a plurality of subcarriers for transmission; and receiving means for receiving a multi-carner signal having data dispersed to a plurality of subcarriers or a single-carrier signal transmitted from the communication terminal device and demodulating the data thereof. |
