| 摘要 |
<p>Embodiments of the present invention provide a radio frequency signal loopback method and an outdoor unit. The outdoor unit includes: a transmitting module, a receiving module, a splitter module, a combining module, a duplexer, and an amplifier. The transmitting module is configured to transmit a signal; the splitter module is configured to split the signal transmitted by the transmitting module into two branches, where one branch of the signal is input into the amplifier, and the other branch of the signal is input into the duplexer; the amplifier is configured to amplify the signal from the splitter module; the duplexer is configured to filter the signal from the splitter module and then output the signal to an antenna, and filter an external signal received by the antenna and then output the external signal to the combining module; the combining module is configured to combine the signal output by the amplifier with the signal output by the duplexer, and then output a combined signal to the receiving module; and the receiving module is configured to receive the combined signal output by the combining module. By using the technical solutions provided in the present invention, loopback of a signal at any frequency in a working frequency band and any service mode of the outdoor unit can be implemented.</p> |
