| 摘要 |
<p>A wireless relay device includes: a first receiving channel for receiving signals from a base station and a terminal, a second receiving channel for receiving signals from the terminal, a first transmission channel for transmitting signals to the base station or both the base station and the terminal, a second transmission channel for transmitting signals to the terminal, and a radio frequency control unit, which is configured to: control the first receiving channel, the second receiving channel, the first transmission channel and the second transmission channel to use frequency bands during the communication between the base station and the terminal, and receive signals from both the base station and the terminal simultaneously in a first time interval; in a second time interval, transmit signals to both the base station and the terminal simultaneously; and wherein both the third frequency band and the fifth frequency band are two guard frequency bands between the working frequency band of the Frequency Division Duplex (FDD) system and the second frequency band acting as the working frequency band of Time Division Duplex (TDD) system. With the present invention, a bi-directional relay communication between the base station and the terminal can be implemented by means of idle guard frequency bands, increasing the use efficiency and use flexibility of the guard frequency band.</p> |
