手机作主叫及被叫的信令流程

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1、手机作主叫的信令流程：MSBTSBSCMSC[RACH]信道请求（8informationbits:arandomnumber(5bits)andanestablishcause(3bits)）channelrequest信道请求（8informationbits）channelrequiredSDCCH信道激活Channelactivation[AGCH]立即分配(频点、时隙号)ImmediateassignmentSDCCH信道激活认证ChannelactivationACK.[SDCCH]鉴权请求(RAND)Authentic

2、ationRequest[SDCCH]鉴权响应(SRES)AuthenticationResponse[SDCCH]加密请求(Kc)TMSIReallocationCommand[SDCCH]加密响应(SRES)TMSIReallocationComplete[SDCCH]设置呼叫类型[SDCCH]呼叫类型证实TCH信道分配请求AssignmentRequestTCH信道激活命令ChannelActivation[SDCCH]TCH分配命令(时隙号)AssignmentCommand[FACCH]TCH分配完成AssignmentC

3、ompleteSDCCH信道释放命令ChannelReleaseSDCCH信道释放完成ChannelReleaseAck.[FACCH]回铃Alerting[FACCH]连接connect[FACCH]连接确认connectACK.通话[FACCH]断开disconnect[FACCH]释放Release[FACCH]释放完成Releasecomplete[FACCH]释放信道Channelrelease释放指示ReleaseIndication无线信道释放RFChannelRelease无线信道释放完成RFChannelRelea

4、seAck.手机作被叫的信令流程：MSBTSBSCMSC寻呼(LAIIMSI或TMSI)Paging寻呼命令(时隙号IMSI或TMSI)PagingCommand[PCH]寻呼请求(IMSI或TMSI)PagingRequest[RACH]信道请求（8informationbits）channelrequest信道请求（8informationbits）channelrequiredSDCCH信道激活Channelactivation[AGCH]立即分配(频点、时隙号)ImmediateassignmentSDCCH信道激活认证

5、ChannelactivationACK.[SDCCH]寻呼响应(IMSI或TMSI)[SDCCH]鉴权请求(RAND)AuthenticationRequest[SDCCH]鉴权响应(SRES)AuthenticationResponse[SDCCH]加密请求(Kc)TMSIReallocationCommand[SDCCH]加密响应(SRES)TMSIReallocationComplete[SDCCH]设置呼叫类型[SDCCH]呼叫类型证实TCH信道分配请求AssignmentRequestTCH信道激活命令ChannelAc

6、tivation[SDCCH]TCH分配命令(时隙号)AssignmentCommand[FACCH]TCH分配完成AssignmentCompleteSDCCH信道释放命令ChannelReleaseSDCCH信道释放完成ChannelReleaseAck.[FACCH]回铃Alerting[FACCH]连接connect[FACCH]连接确认connectACK.通话[FACCH]断开disconnect[FACCH]释放Release[FACCH]释放完成Releasecomplete[FACCH]释放信道Channelrel

7、ease释放指示ReleaseIndication无线信道释放RFChannelRelease无线信道释放完成RFChannelReleaseAck.MOC第3层信令过程：UplinkChannelRequest---------------RACHDownlinkImmediateAssignment-------AGCHUplinkCMServiceRequest-----------SDCCHDownlinkAuthenticationRequest--------SDCCHUplinkAuthenticationReques

8、t--------SDCCHDownlinkCipheringModeCommand----SDCCHUplinkCipheringModeComplete-----SDCCHUplinkSetup------------------