对于一个正常的移动台主叫流程，下面的信令流程先后次序正确的是（） A: OriginationMessage->CMServiceRequest->Allocation->Establish->AssignmentComplete->TchPreamble B: OriginationMessage->CMServiceRequest->TchPreamble->Establish->AssignmentCompleteAllocation C: OriginationMessage->CMServiceRequest->Establish->Allocation->TchPreamble->AssignmentComplete D: OriginationMessage->CMServiceRequest->Establish->AssignmentComplete->Allocation->TchPreamble

AgilentE64xx软件中CallStatus窗口的“Setup时长”是指（）阶段。 A: ChannelRequest到Connect之间时长 B: Setup到Alerting之间时长 C: ImmediateAssignment到setup之间时长 D: ChannelRequest到AssignmentComplete之间时长

在主被叫流程中，消息AssignmentCommand是通过（）逻辑信道在空中由BTS发送给MS的，AssignmentComplete消息是通过（）逻辑信道在空中由MS发送给BTS的。 A: SDCCH；SDCCH B: TCH；TCH C: SDCCH；TCH D: TCH；SDCCH