下面的网络设备单元中，可能作为室内分布系统的信号源的是（）A、Fiber RepeaterB、Micro BTSC、Remote RF UnitD、Base Station Controller
下面的网络设备单元中，可能作为室内分布系统的信号源的是（）
- A、Fiber Repeater
- B、Micro BTS
- C、Remote RF Unit
- D、Base Station Controller
相关考题：
下面的网络设备单元中,可能作为室内分布系统的信号源的是() A.Fiber RepeaterB.Micro BTSC.Remote RF UnitD.Base Station Controller
【An overall cellular network contains a number of different elements from the base transceiver station (BTS) itself with its antenna back through a base station controller (BSC), and a mobile switching centre (MSC) to the location registers (HLR and VLR) and the link to the public switched telephone network (PSTN). Of the units within the cellular network, the BTS provides the direct communication with the mobile phones. There may be a small number of base stations then linked to a base station controller. This unit acts as a small centre to route calls to the required base station, and it also makes some decisions about which of the base station is best suited to a particular call. The links between the BTS and the BSC may use either land lines of even microwave links. Often the BTS antenna towers also support a small microwave dish antenna used for the link to the BSC. The BSC is often co-located with a BTS. The BSC interfaces with the mobile switching centre. This makes more widespread choices about the routing of calls and interfaces to the land line based PSTN as well as the HLR and VLR.】 From the paragraph above, in a cellular network, the （98） can provide direct communication with a mobile phone, the （99） acts as a small centre to route calls to the required base station, and it also makes some decisions about which of the base station is best suited to a particular call.（100） can be used to link the BSC with related BTS。A. BSC B. BTS C. MSC D. VLR A. BSC B. BTS C. MSC D. HLR A. Land lines B. Microwave links C. Microwave dish antenna D. Land lines or microwave links
在信号杂乱且不稳定的室内无线环境中,避免使用?引入信号,宜选用?作为信号源。如在开放型的高层建筑中,通常选择()作为室内天馈线分布系统的信号源,抑制干扰,保证主用信号电平及通话质量指标。 A.干放B.室内直放站C.基站D.光纤直放站E.微蜂窝基站
MCU是()的缩写。 A.Muti control unitB.Micro Control UnitC.Main Computational UnitD.Memory Control Unit
在室内分布系统的信号源的选择时,以下说明正确的是()。 A.从覆盖角度考虑信号源的选取时，对于低话务密度、小规模覆盖且较为封闭的场景，优先选用直放站作为信号源B.对于中等话务密度和中等覆盖规模的场景，可以选用微基站作为信号源C.对于高话务密度和大覆盖规模的场景，建议采用选用宏基站+远端射频模块（RRU）作为信号源D.除了容量和覆盖，还要考虑机房和电源等配套设施，综合这些因素后最终决定采用那种方式进行室内覆盖
在信号杂乱且不稳定的室内无线环境中，避免使用（）引入信号，宜选用基站作为信号源。如在开放型的高层建筑中，通常选择微蜂窝基站作为室内天馈线分布系统的信号源，抑制干扰，保证主用信号电平及通话质量指标。A、干放B、室内直放站C、微蜂窝D、基站耦合
MCU是（）的缩写。A、Muti control unitB、Micro Control UnitC、Main Computational UnitD、Memory Control Unit
多选题下面的网络设备单元中，可能作为室内分布系统的信号源的是（）AFiber RepeaterBMicro BTSCRemote RF UnitDBase Station Controller
单选题对于高话务的室内区域，选择室内分布系统的信号源时，宜选择（）作为信号源。A宏蜂窝基站B微蜂窝基站C射频拉远RRUD直放站