【单选题】
在使用Probe进行NSA网络的测试中,发现LTE上行的MAC层速率是20Mbps,但是PDCP层速率为0,以下理解正确的是哪项?___
A. PDCP层故障
B. LTE的数据汇聚到NR的PDCP层
C. 误码太高,数据为重传导致
D. 工具统计异常
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相关试题
【单选题】
大气环境对无线信号衰减影响较大的频段主要集中在哪个区域?___
A. 60Ghz附近
B. 28Ghz附近
C. 3.5Ghz附近
D. 70Ghz附近
【单选题】
gNodeB通过空间分集(分集增益)和相干接收合并(阵列增益)来增强上行信号接收效果的技术是什么?___
A. 上行用户多流传输
B. 上行多天线接收
C. 上行MU MIMO PUCCH复用
D. 上行MU MIMO PUSCH复用
【单选题】
3GPP标准定义的5G传播模型中,对杆站和宏站天线的典型高度定义分别是多少?___
A. 20米,40米
B. 10米,25米
C. 10米,40米
D. 15米,25米
【单选题】
NSA组网Option3x场景,5G小区的SIB广播消息内容通过4G小区发送给UE。___
【单选题】
5G RAN2.1 AAU可调电下倾角的调整粒度为以下哪项? ___
A. 1°
B. 2°
C. 0.1°
D. 0.5°
【单选题】
5G终端的每个PDU会话内可能会建立一个或多个QoS流。___
【单选题】
NSA架构下的UE附着网络时,可以直接Attach到NR网络上。___
【单选题】
在NR辅站变更成功后,MeNodeB会通知MME以下哪条信令?___
A. Path Update Procedure
B. SgNB Reconfiguration Complete
C. SgNB Information Transfer
D. RRC Connection Reconfiguration Complete
【单选题】
PScell变更过程中对测量结果进行评估判决的是哪个网元? ___
【单选题】
以下信道或信号中,发射功率跟随PUSCH的是哪项? ___
A. PUSCH
B. PUCCH
C. SRS
D. PRACH
【单选题】
SA网络中,关于NR小区重选的准则描述错误的是哪项?___
A. R_s=Qmeas,s+Qhyst
B. 触发最好小区重选时需要满足R_s<R_n
C. R_n=Qmeas,n-Qoffset
D. 满足判决条件至少5s后才会触发重选
【单选题】
广播消息RMSI和随机接入响应消息RAR,默认采用哪种MSC传输? ___
A. MSC0
B. MSC3
C. MSC1
D. MSC2
【单选题】
gNodeB在执行资源调度时需要考虑信道质量信息。___
【单选题】
用NR覆盖高层楼宇时,NR广播波束场景化建议配置成以下哪项?___
A. SCENARTO_1
B. SCENARIO_0
C. SCENARIO_13
D. SCENARIO_6
【单选题】
如果NR广播波束配置成水平3dB为65°波束,则对64T63R的AAU来说,它支持的方位角调测的范围是以下___
A. -42°~42°
B. -22°~22°
C. -10°~10°
D. 0°
【单选题】
UE接入LTE网络后,LTE小区会向UE发送哪条消息用以测量NR小区信号?___
【单选题】
做5G的C波段上行链路估算时,UE的发射功率一般为多少? ___
A. 26dBm
B. 33dBm
C. 23dBm
D. 30dBm
【单选题】
标识NR随机接入竞争解决完成的是哪个消息?___
A. Msg1
B. Msg4
C. Msg3
D. Msg2
【单选题】
NR测量控制消息通过eNodeB的哪条消息下发给UE?___
A. RRC连接建立
B. RRC连接重配置
C. RRC连接重建立
D. RRC连接重配完成
【单选题】
UE发送前导后没有得到gNodeB的响应,则会攀升功率再次发送前导。___
【单选题】
以下信道或信号通常采用开环功控的是哪项?___
A. PRACH
B. PUSCH
C. PUCCH
D. SRS
【单选题】
5G RAN2.1中,ChMeas.MCS.DuCell主要是用来测量以下哪类指标?___
A. 网络负载
B. 信道质量
C. 移动性能
D. 小区业务量
【单选题】
NSA组网中,NR出现掉话时会记录在5G网络侧。___
【单选题】
5G的C波段中,Numerology取1时对应的子载波间隔是多大? ___
A. 30Khz
B. 5Khz
C. 60Khz
D. 15Khz
【单选题】
NR小区的SS信道功率会根据实际环境进行动态调整。___
【单选题】
5G RAN2.1 64T64R的AAU可以最多支持多少种广播波束场景配置?___
【单选题】
一NR小区SSB波束采用默认模式,天线挂高35米,机械下倾角为3°,数字下倾配置为0°,则此小区主覆盖波瓣的下沿(近点)距离基站大约是多少米?___
A. 1200 米
B. 150米
C. 330米
D. 670米
【单选题】
NR子载波配置为30Khz时,其对应每时隙的符号数和时隙数分别是多少?___
A. 14;20
B. 12;20
C. 12;40
D. 14;40
【单选题】
64T64R AAU在默认配置场景下,广播波束的水平3dB波宽和垂直3dB波宽分别是多少?___
A. 65°、6°
B. 105°、6°
C. 65°、12°
D. 105°、12°
【单选题】
Massive MIMO默认配置的水平扫描范围和垂直扫描范围分别为以下哪项?___
A. 105°;6°
B. 65°;6°
C. 105°;12°
D. 90°;12°
【单选题】
在SA组网中做下载业务时,因服务小区信号差而启动切换判决阶段的事件是哪项?___
【单选题】
上行定时使距离gNodeB不同的UE发送上行数据能同时到达gNodeB。___
【单选题】
重传数据的调度优先级高于初传数据调度优先级。___
【单选题】
Massive MIM0基于SRS加权或PMI加权获得的波束一般称为什么波束?___
A. 动态波束
B. 窄波束
C. 宽波束
D. 静态波束
【单选题】
5G控制信道和广播信道采用预定义的权值生成离散的什么波束?___
A. 宽波束
B. 半静态波束
C. 静态波束
D. 动态波束
【单选题】
62.为了满足上行峰值测试的性能要求,上行参考信号DRS类型需要设置成以下哪种类型?___
A. Type3
B. Type1
C. Type2
D. Type4
【单选题】
路测中发现N派的aNodcB触发了辅站异常释放流程,在以下哪条消总里可议看到异常原因?___
A. SgNodeB Reconnection Request
B. SgNodeB Release Request
C. SN Status Transfer
D. SgNodeB Release Confirm
【单选题】
NR逻辑信道根据传输数据的类型分为控制信道于业务信道。___
【单选题】
NR系统的覆盖问题优化原则是先优化SS SINR,然后优化SS RSRP。___
【单选题】
NR系统中A3测量报告上报的最大小区数固定为4个。___
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