PS業務建立流程：

1.1.???????RRC Connection Request??????????????????????????? ??RRC連接請求

1.2.???????RRC Connection Setup??????????????????????????????? RRC連接設置

1.3.???????RRC Connection Setup Complete?????????????? ?????????完成RRC連接

1.4.???????Initial UE Message??????????????????????????????????消息

1.5.???????Initial Context Setup Request???????????????????? ?????初始上下文設置請求

1.6.???????UE Capability Enquiry??????????????????????????????? UE能力調查

1.7.???????UE Capability Information??????????????????????????? ?UE能力信息

1.8.???????UE Capability Info Indication ??????????????????????????UE能力信息指示

1.9.???????Security Mode Command? ???????????????????????????安全模式命令

1.10.????RRC Connection Reconfiguration???? ??????????????????RRC連接重配置

1.11.????Security Mode Complete????????????????????????????安全模式完成

1.12.????RRC Connection Reconfiguration Complete? ????????????RRC連接重配置完成

1.13.????Initial Context Setup Response? ??????????????????????初始上下文設置響應

1.14.????UL Information Transfer????? ????????????????????????UL信息傳輸

1.15.????Uplink NAS Transport??????????? ???????????????????uplink NAS傳輸

1.16.????UE Context Release????????????????????????????????為UE上下文釋放命令

1.17.????RRC Connection Release?? ??????????????????????????RRC連接釋放???????

1.18.????UE Context Release Complete?????????????????????? ?UE上下文釋放完成

1.19.????Lte system messages??????????????????????????????系統消息

切換