摘要
TD-SCDMA直放站是一种由上行链路和下行链路构成的双向放大设备。直放站在正常工作时不可避免会有噪声输出,上行输出的噪声电平送到基站,会抬高基站接收机的噪声电平,降低接收灵敏度。在微功率直放站设备中使用上行链路自动关断技术,能实现当无线直放站覆盖区域内无用户使用时,直放站自动关断上行链路,不会对基站噪声电平产生不利影响。这一方案克服了现有直放站在开通状态会一直不断影响基站电平的缺点,具有较好的应用价值。
TD-SCDMA repeater is a device of double-way amplifies. There is some noise when a repeater is working. The noise raises noise lever and lowers receiver sensitivity. An automatic shut-off technology is put forward, which can be used in low-power repeater. This technology can make the repeater automatic shut-off uplink when there is no user in coverage area.
出处
《江苏技术师范学院学报》
2010年第3期27-30,共4页
Journal of Jiangsu Teachers University of Technology
关键词
微功率直放站
自动关断
噪声电平
接收灵敏度
low-power repeater
automatic shut-off
noise-lever
Receiver Sensitivity
