GSM信令流程(英文).ppt

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1、MSBSCChannelactivationackChannelactivationEncryptioncommandChannelrequiredCompleteLayer3Info.AuthenticationrequestCallproceedingCipherModeCompleteSABM(cm_serv_req)ImmediateassigncommandestablishindicationBTSChannelrequestUA(cm_serv_req)CipherModeCommandImmediatea

2、ssignmentMSCAuthenticationresponseSetupCipherModeCommandCipherModeComplete主叫流程之一主叫流程之二MSBSCBTSMSCAssignmentRequestChannelactivationackAssignmentcommandestablishindicationAssignmentCompleteAssignmentCompleteDeactivateSACCHReleaserequestReleaseconfirmRFChannlerelea

3、seRFChannelreleaseackAlertingConnectConnectacknowledgeSABMUAChannelactivationMSBSCBTSMSC主叫流程之三ChannelReleaseReleaseCompleteReleaseClearCommandRFChannlereleaseDISCDeactivateSACCHRFChannelreleaseackReleaseIndicationUADisconnectClearComplete被叫流程之一MSBSCBTSMSCChannela

4、ctivationackChannelactivationEncryptioncommandChannelrequiredCompleteLayer3Info.AuthenticationrequestCallconfirmCipherModeCompleteSABM(pag_resp)ImmediateassigncommandestablishindicationChannelrequestUA(pag_resp)CipherModeCommandImmediateassignmentAuthenticationre

5、sponseSetupCipherModeCommandCipherModeCompletePagingCommandPagingRequestPaging被叫流程之二MSBSCBTSMSCAssignmentRequestChannelactivationackAssignmentcommandestablishindicationAssignmentCompleteAssignmentCompleteDeactivateSACCHReleaserequestReleaseconfirmRFChannlerelease

6、RFChannelreleaseackAlertingConnectConnectacknowledgeSABMUAChannelactivationMSBSCChannelactivationackChannelactivationEncryptioncommandChannelrequiredCompleteLayer3Info.AuthenticationrequestTMSIreallocationcompleteCipherModeCompleteSABM(loc_upd_req)Immediateassign

7、commandestablishindicationBTSChannelrequestUA(loc_upd_req)CipherModeCommandImmediateassignmentMSCAuthenticationresponseLocationupdatingacceptCipherModeCommandCipherModeComplete位置更新流程之一MSBSCBTSMSC位置更新流程之二ChannelReleaseClearCommandRFChannlereleaseDISCDeactivateSACC

8、HRFChannelreleaseackReleaseIndicationUAClearCompleteMSBSCBTS1BTS2内部切换流程ChannelactivationChannelactivationackMeasurementresultHandovercommandMeasurementreportHa