GSM信令流程(英文)

MSBSCChannelactivationackChannelactivationEncryptioncommandChannelrequiredCompleteLayer3Info.AuthenticationrequestCallproceedingCipherModeCompleteSABM(cm_serv_req)ImmediateassigncommandestablishindicationBTSChannelrequestUA(cm_serv_req)CipherModeCommandImmediateassignmentMSCAuthenticationresponseSetupCipherModeCommandCipherModeComplete主叫流程之一主叫流程之二MSBSCBTSMSCAssignmentRequestChannelactivationackAssignmentcommandestablishindicationAssignmentCompleteAssignmentCompleteDeactivateSACCHReleaserequestReleaseconfirmRFChannlereleaseRFChannelreleaseackAlertingConnectConnectacknowledgeSABMUAChannelactivationMSBSCBTSMSC主叫流程之三ChannelReleaseReleaseCompleteReleaseClearCommandRFChannlereleaseDISCDeactivateSACCHRFChannelreleaseackReleaseIndicationUADisconnectClearComplete被叫流程之一MSBSCBTSMSCChannelactivationackChannelactivationEncryptioncommandChannelrequiredCompleteLayer3Info.AuthenticationrequestCallconfirmCipherModeCompleteSABM(pag_resp)ImmediateassigncommandestablishindicationChannelrequestUA(pag_resp)CipherModeCommandImmediateassignmentAuthenticationresponseSetupCipherModeCommandCipherModeCompletePagingCommandPagingRequestPaging被叫流程之二MSBSCBTSMSCAssignmentRequestChannelactivationackAssignmentcommandestablishindicationAssignmentCompleteAssignmentCompleteDeactivateSACCHReleaserequestReleaseconfirmRFChannlereleaseRFChannelreleaseackAlertingConnectConnectacknowledgeSABMUAChannelactivationMSBSCChannelactivationackChannelactivationEncryptioncommandChannelrequiredCompleteLayer3Info.AuthenticationrequestTMSIreallocationcompleteCipherModeCompleteSABM(loc_upd_req)ImmediateassigncommandestablishindicationBTSChannelrequestUA(loc_upd_req)CipherModeCommandImmediateassignmentMSCAuthenticationresponseLocationupdatingacceptCipherModeCommandCipherModeComplete位置更新流程之一MSBSCBTSMSC位置更新流程之二ChannelReleaseClearCommandRFChannlereleaseDISCDeactivateSACCHRFChannelreleaseackReleaseIndicationUAClearCompleteMSBSCBTS1BTS2内部切换流程ChannelactivationChannelactivationackMeasurementresultHandovercommandMeasurementreportHandoveraccessHandovercompleteSABMUAHandovercompleteHandoverperformed(tomsc)PhysicalinformationestablishindicationHandoverdetectionMSMSCBSS1BSS2外部切换流程HandoverrequestHandoverrequiredHandoverrequestackHandovercommandHandoveraccessHandovercompleteSABMUAHandovercompleteClearcompletePhysicalinformationHandoverdetectClearcommand信道请求(ChannelRequest)•ESTABLISHMENTCAUSE(3~6bit)•RANDOMREFERENCE(5~2bit)信道要求(ChannelRequired)•RequestReferenc(包括randomreference和部分帧号)•AccessDelay(BTS测量得到的时延)信道激活(ChannelActivation)•Channelnumber•Activationtype(3bit,立即指配、指配、切换等)•ChannelMode(表示话音、数据或信令，以及相应属性)•ChannelIdentification(绝对频道号或跳频参数)•HandoverReference(条件：切换)•TimingAdvance(条件：小区内信道改变)信道激活证实(ChannelActivationAck)•FrameNumber立即指配命令(Immediateassigncommand)•FullImm.AssignInf:IMMEDIATEASSIGN:IMMEDIATEASSIGNEXTENDED:IMMEDIATEASSIGNREJECT立即指配(ImmediateAssignment)•PageMode(正常寻呼、扩展寻呼、寻呼重组、不变)•ChannelDescription(信道、绝对频道号或跳频参数)•RequestReference•TimingAdvance•MobileAllocationCM业务请求(CMservicerequest)•CMServicetype(移动主叫、紧急呼、短消息业务等)•Cipheringkeysequencenumber•MobilestationClassmark*发射功率等级*支持的加密算法*伪同步能力*短消息能力等•MobileIdentity鉴权请求(Authenticationrequest)•Cipheringkeysequencenumber•AuthenticationparameterRAND鉴权响应(Authenticationresponse)•AuthenticationparameterSRES加密模式命令(Ciphermodecommand)•EncryptionInformation•CipherResponseMode(可选项，响应消息中是否包含IMEI)加密模式完成(Ciphermodecomplete)•MobileEquipmentIdentity(可选项)•ChosenEncryptionAlgorithm(可选项)建立(Setup)•Bearercapability:信息传送能力、方式:编码标准等•CalledpartyBCDnumber•CCcapabilities(移动台是否支持DTMF)指配请求(AssignmentRequest)•ChannelType:speech/dataindicator:channelrateandtype:speechencodingalgorithmordatarate&transparencyindicator•Priority•CircuitIdentityCode指配命令(AssignmentCommand)•ChannelDescription(信道、绝对频道号或跳频参数)•Powercommand指配完成(AssignmentComplete)•RRCause(可选项)•CircuitIdentityCode(BSS分配电路时使用)•CellIdentifier(小区改变时使用)•ChosenChannel(选择信道速率/类型时使用)•ChosenEncryptionAlgorithm(改变加密算法时使用)•CircuitPool(存在多个电路池时使用)•SpeechVersion(Chosen)(选择了语音版本时使用)寻呼(Paging)•IMSI•TMSI(可选项)•CellIdentifierList(规定寻呼命令发送范围)寻呼命令(Pagingcommand)•Paginggroup•MSIdentity寻呼请求(Pagingrequest)•Pagemode•Channelneeded(信道类型)•MobilesIdentity