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    • 4. 发明申请
    • Wireless repeater implementing low-level oscillation detection and protection for a duplex communication system
    • 无线中继器实现双工通信系统的低级振荡检测和保护
    • US20050272367A1
    • 2005-12-08
    • US11138010
    • 2005-05-26
    • Michael RodgersStephen Kim
    • Michael RodgersStephen Kim
    • H04B7/15H04B7/155H04B7/26
    • H04B7/15564H04B7/2606
    • A modular wireless repeater typically deployed with a roof-mounted tower-signal antenna and a base unit with a base unit antenna located within the building, to which the tower-signal antenna and the base unit are connected by the user or a satellite TV installer using a 75 Ω coaxial cable. The system allows a customer to purchase a unit for all wireless service providers in a given frequency band, such as Cellular, PCS, GSM900, or DCS, etc., and then add on modules for additional types of service that the customer may desire in the future. The system also detects and prevents low-level oscillations. The wireless repeater also performs intelligent power control allowing it to function properly with near and far base unit antennas as well as near and far mobile stations.
    • 模块化无线中继器通常部署有屋顶安装的塔架信号天线和基座单元,基座单元天线位于建筑物内,塔信号天线和基座单元由用户或卫星电视安装人员连接到该基座单元 使用75欧姆同轴电缆。 该系统允许客户为给定频段(如蜂窝,PCS,GSM900或DCS等)的所有无线服务提供商购买一个单元,然后添加用于客户可能需要的其他类型的服务的模块 未来。 该系统还可以检测和防止低电平振荡。 无线中继器还执行智能功率控制,使其能够在近和远基站单元天线以及近端和远端移动台正常工作。