1、层3信令图解振铃(Alerting)指配命令(Assignment Command)鉴权请求/鉴权响应(Authentication Request/Authentication Response)建立/呼叫确认(Setup/Call Confrimed)呼叫进程(Call proceeding)信道请求(Channel Request)CM业务请求/CM服务接受(CM Service Request/CM Service Accept)连接/连接证实(Connect/Connect Acknowledge)断开/释放(Disconnect/Release)切换命令/切换接受(Handover
2、 Command/Handover Access)切换失败(Handover Failure)请求身份标识/提供身份标识(Identtity Request/Identity Response)立即指配(Immediate Assignment)立即指配 /立即指配拒绝(Immediate Assignment Reject)位置更新请求(Location Updating Request)位置更新接受(Location Updating Accept)测量报告(Measurement Report)寻呼请求类型1(Paging Request Type1)寻呼请求类型2(Paging Request Type2)疑问:(Physical Information)异步切换的一条信令,与TA值信息有关?(BTS内切换(同步切换)因为TA值相同,不需要同步TA值)呼叫进程(Call Progress)呼叫建立(Call Setup)信道信息同步(Synch Channel Information)