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BTS（Base Transceiver Station）基本收发信机单元，是服务于一个小区的无线设备。它包含（）
- A、无线系统
- B、无线频率功率放大器
- C、所有的数字信号处理设备
- D、小区结构数据
参考答案
更多 “BTS（Base Transceiver Station）基本收发信机单元，是服务于一个小区的无线设备。它包含（）A、无线系统B、无线频率功率放大器C、所有的数字信号处理设备D、小区结构数据” 相关考题
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
考题
SGSN与MSC／VLR之间的通信,采用BSSAP＋(Base Station System Application＋)协议实现联合的移动性管理、寻呼等功能,使用SS7传送
A．错误B．正确
考题
【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
考题
In 8011 terminology．all communication was to go through the base station, called an(75)A．Access ChannelB．Access SystemC．Access PointD．Network Access Point
考题
CDMA for cellular system can be described as follows. As with FDMA, each cell is allocated a frequency （71） , when is split into two parts, half for reverse (mobile unit to base station) and half for （72） (base station to mobile unit). For full-duplex （73） , a mobile unit both reverse and forward channels. Transmission is in the form. of direct-sequence spread （74） , which used a chipping code to increase the data rate of the transmission, resulting is an increased signal bandwidth. Multiple access is provided by assigning （75） chipping codes to multiple users, so that the receiver can recover the transmission of an individual unit from multiple transmissions.A.wareB.signalC.bandwidthD.domain
考题
统计掉话率时,统计的触发点在()信令之后。
A.Assignment RequestB.Assignment CompletionC.Page ResponseD.Base Station Ack Order
考题
ETA/PILOT REVERTING means:A.ETA pilot station has been givenB.ETA pilot station will be given afterwardsC.ETA pilot station was not givenD.ETA pilot station is given
考题
The line connecting the Loran-C master station with a secondary station is called the ______．A.Focus lineB.Base lineC.Side lineD.Center line
考题
CDMA for cellular systems can be described as follows.As with FDMA，each cell is allocated a frequency（ ），which is split into two parts,half for reverse（mobile unit to base station）and half for（ ）（base station to mobile unit）.For full-duplex（ ）.a mobile unit uses both reverse and forwardchannels.Transmission is in the form of direct-sequence spread（本题）,which uses a chipping code to increase the data rate of the transmission,resulting inan increased signal bandwidth.Multiple access is provided by assigning（ ）chipping codes to multiple users,so that the receiver can recover the transmission of an individual unit from multiple transmissions.A.structure
B.spectrum
C.stream
D.strategy
考题
At Layer 2 of the OSI model, which component connects a host to the network media?（）A、HubB、SwitchC、BridgeD、NICE、Transceiver
考题
What is the point of using a combiner? （）A、Up to four sites can share one PCM link.B、Several TRXs can share one antenna system.C、The mobile can listen to two base stations at the same time.D、Only one base station is needed per site.E、Sending and transmitting can be performed from the same antenna.
考题
统计掉话率时，统计的触发点在（）信令之后。A、Assignment RequestB、Assignment CompletionC、Page ResponseD、Base Station Ack Order
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
考题
单选题ETA／PILOT REVERTING means （） ．A
ETA pilot station has been givenB
ETA pilot station will be given afterwardsC
ETA pilot station was not givenD
ETA pilot station is given
考题
判断题SGSN与MSC/VLR之间的通信，采用BSSAP+（Base Station System Application+）协议实现联合的移动性管理、寻呼等功能，使用SS7传送A
对B
错
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