文章标题

**WCDMA信令流程总结**

CS域MT通话

1. Paging CN->SRN

2. PagingType1 SRNC->UE

3. RRCConnectionRequest UE->SRNC

4. RRCConnectionSetup SRNC->UE

5. RRCConnectionSetupComple UE->SRNC

6. InitialDirectTransfer(PagingResponse) UE->SRNC

7. Initial UE Message(Paging Response) SRNC->CN

RRC 建立

8. DL Direct Transfer(AuthenticationRequest) CN->UE

9. UL Direct Transfer(AuthenticationResponse) UE->CN

10.CommandID CN->SRNC

11.Security Mode Command SRNC->UE

12.Security Mode Command Complete UE->SRNC

13.Security Mode Command Complete SRNC->CN

鉴权加密

14.DL Direct Transfer(Setup) CN->UE

15.UL Direct Transfer(Call Confirmed) UE->CN

16.RAB AssignmentRequest(Establishment) CN->SRNC

17.Radio Bearer Setup SRNC->UE

18.Radio Bearer Setup complete UE->SRNC

19.RAB Asiignment Response SRNC->CN

通话过程

20.UL Direct Transfer(Disconnect) UE->CN

21.DL Direct Transfer(Release) CN->UE

22.UL Direct Transfer(ReleaseComplete) UE->CN

23.Iu Release Command CN->SRNC

24.Radio Bear Release SRNC->UE

25.Radio Bearer Release Complete CN->SRNC

26.Iu Release Complete CN->SRNC

27.RRC Connection Release SRNC->UE

28.RRC Connection Release Complete UE->SRNC

SRNC Serving Radio Network Control 服务RNC

请各位网友指正，共同学习