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1.发明申请公开(公告)号：US20130077665A1
公开(公告)日：2013-03-28
申请号：US13685098
申请日：2012-11-26
发明人： Guobin Yu , Hongyong Lin , Yicai Wang
摘要： A wireless transmission apparatus includes a service processing unit, a duplexer, a radio frequency receiving unit, a frequency synthesizer, and a controller. The controller controls, according to a reduced TR interval, the frequency synthesizer to adjust a frequency of a local oscillation signal which is output by the frequency synthesizer to the radio frequency receiving unit. The service processing unit continues to send a service signal as a self-checking signal, and a part of the self-checking signal leaks into the radio frequency receiving unit through the duplexer. After the radio frequency receiving unit mixes a received signal with the local oscillation signal, a frequency of the self-checking signal included in an output signal falls within a pass-band range of an intermediate frequency receiving unit, which ensures that the self-checking signal can be looped back to the service processing unit, thereby determines whether a fault occurs in its own transmission channel.
摘要翻译： 无线传输装置包括业务处理单元，双工器，射频接收单元，频率合成器和控制器。 控制器根据减小的TR间隔控制频率合成器，以将由频率合成器输出的本地振荡信号的频率调整到射频接收单元。 服务处理单元继续发送作为自检信号的服务信号，并且自检信号的一部分通过双工器泄漏到射频接收单元。 在射频接收单元将接收到的信号与本地振荡信号进行混合之后，包括在输出信号中的自检信号的频率落入中频接收单元的通带范围内，这确保了自检 信号可以循环回服务处理单元，从而确定在其自己的传输信道中是否发生故障。
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2.发明授权公开(公告)号：US08665938B2
公开(公告)日：2014-03-04
申请号：US13685098
申请日：2012-11-26
发明人： Guobin Yu , Hongyong Lin , Yicai Wang
摘要： A wireless transmission apparatus includes a service processing unit, a duplexer, a radio frequency receiving unit, a frequency synthesizer, and a controller. The controller controls, according to a reduced TR interval, the frequency synthesizer to adjust a frequency of a local oscillation signal which is output by the frequency synthesizer to the radio frequency receiving unit. The service processing unit continues to send a service signal as a self-checking signal, and a part of the self-checking signal leaks into the radio frequency receiving unit through the duplexer. After the radio frequency receiving unit mixes a received signal with the local oscillation signal, a frequency of the self-checking signal included in an output signal falls within a pass-band range of an intermediate frequency receiving unit, which ensures that the self-checking signal can be looped back to the service processing unit, thereby determines whether a fault occurs in its own transmission channel.
摘要翻译： 无线传输装置包括业务处理单元，双工器，射频接收单元，频率合成器和控制器。 控制器根据减小的TR间隔控制频率合成器，以将由频率合成器输出的本地振荡信号的频率调整到射频接收单元。 服务处理单元继续发送作为自检信号的服务信号，并且自检信号的一部分通过双工器泄漏到射频接收单元。 在射频接收单元将接收到的信号与本地振荡信号进行混合之后，包括在输出信号中的自检信号的频率落入中频接收单元的通带范围内，这确保了自检 信号可以循环回服务处理单元，从而确定在其自己的传输信道中是否发生故障。
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