呼叫(主叫)信令流程

RRC连接建立过程:

17:06:50.358 UL CCCH RRC Connection Request ↑

17:06:51.515 DL CCCH RRC Connection Setup ↓

17:06:52.000 UL DCCH RRC Connection Setup Complete ↑

 

UE通过RRC连接向RNC发送初始化直传消息,请求连接管理和移动性管理请求:

17:06:52.217 UL DCCH Initial Direct Transfer ↑

17:06:52.217 UL MM CM Service Request

 

鉴权:

17:06:52.390 DL DCCH Downlink Direct Transfer ↓

17:06:52.390 DL MM Authentication Request

17:06:52.390 UL DCCH Uplink Direct Transfer ↑

17:06:52.390 UL MM Authentication Response

 

加密和完整性保护:

17:06:52.405 DL DCCH Security Mode Command ↓

17:06:52.405 UL DCCH Security Mode Complete ↑

 

请求建立连接:

17:06:52.420 UL DCCH Uplink Direct Transfer ↑

17:06:52.420 UL CC Setup

 

回应UE网络已经收到建立呼叫所需的全部信息,并正在处理这些信息:

17:06:52.420 DL DCCH Downlink Direct Transfer ↓

17:06:52.420 DL CC Call Proceeding

 

无线承载的建立:

17:06:52.530 DL DCCH Radio Bearer Setup ↓

17:06:53.030 UL DCCH Radio Bearer Setup Complete ↑

 

连接建立:

17:06:54.030 DL DCCH Downlink Direct Transfer ↓

17:06:54.030 DL CC Alerting

17:06:54.030 DL DCCH Downlink Direct Transfer ↓

17:06:54.030 DL CC Connect

17:06:54.030 UL DCCH Uplink Direct Transfer ↑

17:06:54.030 UL CC Connect Acknowledge

 

断开连接(主叫先挂机):

17:07:14.530 UL DCCH Uplink Direct Transfer ↑

17:07:14.530 UL CC Disconnect

17:07:14.545 DL DCCH Downlink Direct Transfer ↓

17:07:14.545 DL CC Release

17:07:14.545 UL DCCH Uplink Direct Transfer ↑

17:07:14.545 UL CC Release Complete

 

RRC连接释放:

17:07:15.030 DL DCCH RRC Connection Release ↓

17:07:15.170 UL DCCH RRC Connection Release Complete ↑