详细的GSM信令流程图FlowChat.doc

Figure.1 呼叫（主叫）SDCCH基本信令流程图MSBTSBSCMSCChannel Request (RACH)Channel RequiredBSC随机接入-立即指配：000008、000012小区SDCCH-立即指配请求 008000 、008137Channel Activation (SDCCH)Channel Activation AcknowledgeImmediate Assignment CommandImmediate Assignment (AGCH)Establish Indication (CM-Service Request)BSC整体立即指配成功： 000013小区SDCCH-立即指配成功008001 、008003、008005、008138、008141、(008142)Complete L3 Infomation (SCCP CR)CM Service RequestComplete L3 Infomation (SCCP CC)CM Service AcceptCM-Service Accept (DTAP)Assignment Procedure Signalling Connection Acknowledge BSC整体成功的连接次数000014Setup (SDCCH)SetupCall ProceedingCall Proceeding Figure.2 呼叫（主叫）TCH基本信令流程图MSBTSBSCMSCAssignment CompleteBSC整体指配请求次数000089小区TCH占用请求次数008041 、008042、008045Channel Activation (TCH)Channel Activation AcknowledgeRF Channel Release (Old Channel)Establish Indication BSC整体指配成功次数000090小区TCH 占用成功呼叫-主叫次数：008058、008061Alerting Access and Immediate Assignment Procedure Signalling Assignment Request Assignment Command (SDCCH)Assignment Complete (FACCH)Or: 小区TCH占用遇全忙和排队-强拆请求计数器: 008051 、008052、008076小区TCH成功语音版本008069 or 008070 or 008071 Or: 小区TCH排队-强拆成功： 008067、008068小区TCH占用成功(所有的)008057Figure.3 呼叫（被叫）SDCCH基本信令流程图MSBTSBSCMSCChannel Request (RACH)Channel RequiredBSC整体随机接入-立即指配请求：000008、000012小区SDCCH-立即指配请求008000 、008137Channel Activation (SDCCH)Channel Activation AcknowledgeImmediate Assignment CommandImmediate assignment (AGCH)Establish Indication (Paging Response)BSC寻呼-立即指配成功：000011、000013小区SDCCH-立即指配成功008001 、008003、008006、008138、008143、(008144)Complete L3 Infomation(Paging Response)Call ComfirmedAssignment Procedure Signalling Connection BSC整体成功连接次数000014Setup (SDCCH)SetupPaging (LAI)BSC整体寻呼请求次数 000009Paging Request (PCH)小区寻呼请求次数008134小区寻呼成功次数008135Call ComfirmedFigure.4 呼叫（被叫）TCH基本信令流程图MSBTSBSCMSCAssignment CompleteBSC整体指配请求次数 000089小区TCH所有的 - 呼叫 - 被叫占用请求次数：008041 、008042、008046Channel Activation (TCH)Channel Activation AcknowledgeRF Channel Release (Old Channel)Establish Indication BSC整体指配成功次数000090小区 TCH 占用成功呼叫-被叫次数：008058、008062Alerting Paging and Immediate Assignment Procedure Signalling Assignment Request Assignment Command (SDCCH)Assignment Complete (FACCH)小区TCH成功语音版本008069 or 008070 or 008071 Or: 小区TCH占用遇全忙和排队-强拆请求计数器: 008051 、008052、008076Or: 小区TCH排队-强拆成功： 008067、008068小区TCH占用成功(所有的)008057Figure.5 寻呼不成功信令流程图MSBTSBSCMSCPaging (LAI)BSC整体寻呼请求次数 000009小区寻呼请求次数计数器008134Paging CommandCCCH Load IndicationBSC整体不成功寻呼次数 000010小区话统CCCH过载次数008136Figure.6 对MS服务拒绝信令流程图MSBTSBSCMSCChannel Request (RACH)Channel RequiredBSC随机接入-立即指配：000008、000012小区SDCCH-立即指配请求 008000 、008137Channel Activation (SDCCH)Channel Activation AcknowledgeImmediate Assignment CommandImmediate assignment (AGCH)Establish Indication (CM-Service Request)BSC整体立即指配成功000013小区SDCCH-立即指配成功 008001 、008003、008005、008138、008141、(008142)Complete L3 Infomation (SCCP CR)CM Service RequestComplete L3 Infomation (SCCP CC)CM Service RejectCM-Service Reject (DTAP)BSC对MS服务拒绝总次数 000000BSC对MS服务拒绝(分情况) 000001 or 000002 or 000003 or 000004Figure.7 极早指配信令流程图（图一）说明：在极早指配允许的情况下，紧急呼叫、呼叫重建以及SDCCH遇忙会引起极早指配。CM服务请求or CM重建请求MSBTSBSCMSCChannel Request (RACH)Channel RequiredBSC随机接入-立即指配：000008、000012小区SDCCH-立即指配请求 008000 、008137Channel Activation (TCH)Channel Activation AcknowledgeImmediate Assignment CommandImmediate assignment (AGCH)Establish Indication (CM服务请求 or CM重建请求)BSC整体立即指配成功000013小区立即指配成功计数器 008138、008141-(008142) or 008135-008143-(008144) or008145 or 008146CM Service Accept CM-Service Accept (DTAP)Assignment Procedure Signalling 小区SDCCH占用遇全忙和 BSS故障占用失败次数 ：(008014) 、 (008015)小区TCH占用请求 008041、008043、(008044)小区TCH占用成功(所有的) 008057小区TCH占用成功极早指配-SDCCH遇忙：008059、(008060)Figure.8 极早指配信令流程图（图二）说明：在图一(Figure.7)说明极早指配的立即指配信令流程后，对指配操作的流程进行说明。MSBTSBSCMSCAssignment CompleteBSC整体指配请求次数000089小区TCH所有的-呼叫占用请求： 008041 、008042Mode Modify Mode Modify AcknowledgeBSC整体指配成功次数000090小区TCH呼叫占用成功008058Access and Immediate Assignment Procedure Signalling Assignment Request 小区TCH成功语音版本008069 or 008070 or 008071 小区TCH主叫或呼叫重建或被叫占用成功： 008061 or 008063 or 008062小区TCH主叫或呼叫重建或被叫占用请求： 008045 or 008047 or 008046Channel Mode Modify (FACCH)Channel Mode Modify AcknowledgeFigure.9 正常情况下（即极早指配不允许），呼叫重建SDCCH信令流程图CM重建请求MSBTSBSCMSCChannel Request (RACH)Channel RequiredBSC随机接入-立即指配： 000008、000012小区SDCCH-立即指配请求008000 、008137Channel Activation (SDCCH)Channel Activation AcknowledgeImmediate Assignment CommandImmediate assignment (AGCH)Establish Indication (CM重建请求)BSC立即指配成功次数： 000013小区立即指配-呼叫重建成功次数： 008138、008146CM Service AcceptCM-Service Accept (DTAP)小区SDCCH占用成功呼叫重建： 008001、008008Assignment Procedure Signalling Figure.10 正常情况下（即极早指配不允许），呼叫重建TCH信令流程图，排队允许。MSBTSBSCMSCAssignment CompleteBSC整体指配请求次数 000089小区TCH所有的 - 呼叫 呼叫重建占用请求次数：008041 、008042、008047Channel Activation (TCH)Channel Activation AcknowledgeRF Channel Release (Old Channel)Establish Indication BSC整体指配成功次数000090小区TCH占用成功呼叫-直接重试： 008058、008063Call re-establishment Immediate Assignment Procedure Signalling Assignment Request Assignment Command (SDCCH)Assignment Complete (FACCH)小区TCH成功语音版本008069 or 008070 or 008071 Or: 小区TCH占用遇全忙和排队-强拆请求计数器: 008051 、008052、008076Or: 小区TCH排队-强拆成功： 008067、008068小区TCH占用成功(所有的) 008057Figure.11 呼叫中，指配操作失败情况信令流程图，排队强拆不允许MSBTSBSCMSCAssignment FailureBSC整体指配请求次数 000089小区TCH所有的 - 呼叫 占用请求次数：008041 、008042BSC整体指配失败次数000091小区 TCH 占用失败次数 008075 、008078Access and Immediate Assignment Procedure Signalling Assignment Request 小区TCH占用请求(分情况) 008045 or 008046 or 008047小区TCH占用失败(分情况) 008080 or 008081 or 008082 小区TCH占用失败(分原因)008089 or 008090 or 008091 or 008092BSC内部消息处理操作BSC指配失败次数(分原因) 000092 or 000093 or 000094 or 000095 or 000096 or 000097 or 000098BSC Clear and Release Procedure Signalling (See Figure.12)Clear CommandFigure.12 MSC发起的清除操作信令流程图，没有计数器MSBTSBSCMSCClear CommandDeactive SACCHRF Channel Release AcknowledgeClear CompleteChannel ReleaseDisc (L2)Ua (L2)Release IndiacationRF Channel ReleaseFigure.13 呼叫操作，TCH信道激活失败-超时信令流程图，排队强拆不允许MSBTSBSCMSCAssignment FailureBSC整体指配请求次数 000089小区TCH所有的 - 呼叫 占用请求次数：008041 、008042BSC整体指配失败所有的-其他原因： 000091、000098小区 TCH 占用失败次数 008075 、008078Access and Immediate Assignment Procedure Signalling Assignment Request 小区TCH占用请求(分情况) 008045 or 008046 or 008047小区TCH占用失败(分情况) 008080 or 008081 or 008082 TCH呼叫信道激活失败-超时次数： 008098 or 008099BSC指配失败次数(分情况) 000099 or 000100BSC Clear and Release Procedure Signalling (See Figure.12)Clear CommandChannel Activation (TCH)Channel Activation NACKOr：“等待信道激活”超时启动“等待信道激活”定时器小区TCH占用成功(所有的) 008057Figure.14 呼叫操作，TCH信道模式修改失败-超时信令流程图，排队强拆不允许MSBTSBSCMSCAssignment FailureBSC整体指配请求次数 000089小区TCH所有的 - 呼叫 占用请求次数：008041 、008042BSC整体指配失败所有的-其他原因：000091、000098小区 TCH 占用失败次数 008075 、008078Access and Immediate Assignment Procedure Signalling Assignment Request 小区TCH占用请求(分情况) 008045 or 008046 or 008047小区TCH占用失败(分情况) 008080 or 008081 or 008082 TCH模式修改失败-超时次数： 008102 or 008103BSC Clear and Release Procedure Signalling (See Figure.12)Clear CommandMode Modify (TCH)Mode Modify NACKOr：“等待模式修改”超时启动“等待模式修改”定时器Figure.15 SDCCH占用失败，由于没有资源（即BSS故障），极早指配不允许MSBTSBSCMSCBSC随机接入-立即指配000008、000012小区SDCCH占用请求次数008000Channel RequiredChannel Request (RACH)小区立即指配请求次数008137小区SDCCH占用失败BSS 008015SDCCH Channel No Resource小区SDCCH占用遇全忙008014Immediate Assignment Command Immediate Assignment RejectFigure.16 SDCCH占用失败，由于信道激活失败超时（即BSS故障），极早指配不允许MSBTSBSCMSCChannel Activation (SDCCH)Channel Activation NACKOr：“等待信道激活”超时启动“等待信道激活”定时器BSC随机接入-立即指配000008、000012小区SDCCH占用请求次数008000Channel RequiredChannel Request (RACH)小区立即指配请求次数008137小区SDCCH占用失败BSS 008015Immediate Assignment Command Immediate Assignment RejectSDCCH信道激活失败-超时 008016 or 008017Figure.17 SDCCH掉话情况，由于连接失败、错误指示、Abis断链等原因MSBTSBSCMSCChannel Activation (SDCCH)Channel Activation AcknowledgeBSC随机接入-立即指配000008、000012小区SDCCH-立即指配请求008000、008137Channel RequiredChannel Request (RACH)小区SDCCH-立即指配成功008001、008138BSC立即指配成功次数000013Immediate Assignment Command Immediate Assignment小区SDCCH成功(分情况) 008003 or 008004 or 008005 or 008006 or 008007 or 008008 or 008009Establish Indication(L3 Info)小区立即指配成功(分情况) 008139 - (008140)or 008141 - (008142) or 008143 - (008144) or 008145 or 008146 or 008147Connection FailureError IndicationOr:Or:Abis Failure小区SDCCH掉话(分情况) 008018 or 008019 or 008020Figure.18 TCH掉话情况，由于连接失败、错误指示、Abis断链、A接口和OM失败等原因，不包括排队/强拆情况（两个情况：手机在振铃时的掉话如何统计，在切换过程中发生的掉话如何统计（切换接入为界）？MSBTSBSCMSCCall Assignment Procedure Signalling (See Figure.2 or Figure.4) Handover TCH Channel Seizures Procedure Signalling (See Figure.2 )Handover CompleteConnection FailureError IndicationOr:Or:Abis FailureOr:A FailureOr:Or:O&M Failure小区TCH掉话次数(分情况) 008096 or 008097 or 008104 or 008105 or 008106BSC整体TCH掉话次数000015Connection or Connection AcknowledgeFigure.19 直接重试不允许，呼叫TCH占用排队失败，由于队列满、队列定时器超时原因。MSBTSBSCMSCBSC整体指配请求次数000089小区TCH占用请求所有-呼叫次数： 008041 、008042BSC整体指配失败次数000091、000099小区TCH 占用-呼叫失败次数： 008075、008078Access and Immediate Assignment Procedure Signalling Assignment Request 小区排队-强拆请求计数器 008051 、008052小区TCH占用遇全忙次数008076小区TCH排队失败(分情况)008086 or 008087Or:Queue FullQueuing TimeOut小区TCH占用失败(分情况) 008080 or 008081 or 008082Assignment Failure小区TCH占用请求(分情况) 008045 or 008046 or 008047Figure.20 呼叫TCH占用排队失败，由于队列满、队列定时器超时等原因，直接重试允许。 说明：在直接重试允许的情况下，不进行BSC及小区TCH 占用失败统计。MSCMSBTSBSCBSC整体指配请求次数000089Access and Immediate Assignment Procedure Signalling Assignment Request 小区排队-强拆请求计数器 008051 、008052小区TCH占用遇全忙次数008076Or:Queue FullQueuing TimeOut小区TCH排队超时转直接重试： 008088Directed RetryDirected Retry Procedure Signaling (For example：Figure.22)小区TCH占用请求所有-呼叫次数： 008041 、008042小区TCH占用请求(分情况) 008045 or 008046 or 008047Figure.21 位置更新操作，信令流程图Loaction Updating Request (SCCP CR)Location Updating Accept (SCCP CC)MSBTSBSCMSCDeactive SACCHRF Channel Release AcknowledgeChannel Release (SDCCH)Disc (L2)Ua (L2)Release IndiacationRF Channel ReleaseChannel RequestChannel RequiredBSC随机接入-立即指配：000008、000012小区SDCCH-立即指配请求 008000 、008137Channel Activation (SDCCH)Channel Activation AcknowledgeImmediate Assignment CommandImmediate Assignment (AGCH)Establish Indication (Location Updating Request)BSC整体立即指配成功： 000013小区SDCCH-立即指配成功008001 、008003、008004、008138、008139、(008140)Location Updating Accept (DTAP)Figure.22 主叫TCH占用遇忙，BSC内部直接重试，排队不允许，省略内部切换计数器MSBTS (Source)BSCBTS (Target)MSCChannel RequestChannel RequiredAssignment RequestDirected RetryBSC整体指配请求次数000089小区TCH占用请求次数008041 、008042、008045小区TCH占用遇全忙次数008076Immediate Assignment Procedure Signalling (See Figure.1) 源小区TCH占用所有-直接重试请求： 008041、008050Measurement ResultMeasurement ReportChannel Activation (TCH)目标小区TCH占用成功(所有的)： 008057Channel Activation ACKHandover Command (SDCCH)Handover AccessHandover Complete源小区直接重试TCH占用成功： 008066RF Channel ReleaseBSC整体指配及目标小区TCH成功计数器： Figure.2Assignment Complete目标小区TCH占用请求(所有的)： 008041Figure.23 呼叫主叫TCH占用遇全忙，启动BSC内部直接重试，由于内部切换拒绝或等待HO_Ready超时，内部直接重试失败，省略内部切换计数器MSBTS (Source)BSCBTS (Target)MSCChannel RequestChannel RequiredAssignment RequestDirected RetryBSC整体指配请求次数000089小区TCH占用请求次数008041 、008042、008045小区TCH占用遇全忙次数008076Immediate Assignment Procedure Signalling (See Figure.1) 源小区TCH占用所有-直接重试请求： 008041、008050源小区TCH所有-直接重试占用失败： 008075、008085BSC整体指配失败-无可用信道： 000091、000097Assignment Failure发送消息 Intercell_HO_Req并启动定时器WAIT_INTER_HO_READYMeasurement ResultMeasurement ReportOr:Intercell HO RejectWait_Inter_HO_ReadyTimeOut源小区TCH占用失败008075、008078、008080 Figure.24 呼叫主叫TCH占用遇全忙，启动出BSC直接重试，由于出局切换拒绝或T7超时，出局直接重试失败，省略出局切换计数器MSBTS BSC(Source)BSC (Target)MSCChannel RequestChannel RequiredAssignment RequestDirected RetryBSC整体指配请求次数000089小区TCH占用请求次数008041 、008042、008045小区TCH占用遇全忙次数008076Immediate Assignment Procedure Signalling (See Figure.1) 源小区TCH占用所有-直接重试请求： 008041、008050源小区TCH所有-直接重试占用失败： 008075、008085BSC整体指配失败-无可用信道： 000091、000097Assignment Failure启动 T7 定时器Measurement ResultMeasurement ReportOr:T7 TimeOut源小区TCH占用失败008075、008078、008080Handover RequiredHandover RequestHandover Request RejectFigure.25 BSC内小区间切换成功流程，由于空间关系，缺少计数器见附图一MSCMSBTS (Source)BSCBTS (Target)BSC整体小区间切换尝试000022出小区内部切换尝试：008156Measurement ResultMeasurement ReportChannel Activation (TCH)Channel Activation ACKHandover Command BSC小区间切换次数 000023Handover AlgorithmBSC整体900-1800小区间切换：000024 or 000025切换成功计数器及后续流程，见 Figure.27源小区BSC内出小区切换请求次数： 008157切换自邻近小区请求次数： 015000 (目标小区)Intercell HO Request目标小区TCH占用请求所有-切换： 008041、008048目标小区BSC内入小区切换尝试： 008151目标小区BSC内入小区切换(切自900/1800小区)： 008154 or 008155源小区BSC内出小区切换次数(切向900/1800小区)： 008159 or 008160Intercell Handover ResponseFigure.26 BSC内小区间切换成功流程，补充计数器，附图一MSBTS (Source)BSCBTS (Target)Measurement ResultMeasurement ReportChannel Activation (TCH)Channel Activation ACKHandover Command Handover AlgorithmBSC整体切换判决分原因000060 or 000061 or 000062 or 000063 or 000064 or 000065 or 000066 or 000067 or 000068 or 000069 or 000070小区切换尝试次数分原因008163 or 008164 or 008165 or 008166 or 008167 or 008168 or 008169 or 008170 or 008171 or 008172 or 008173 or 008174切换成功计数器及后续流程，见 Figure.27小区切换接收电平-质量：008175 or 008176 or 008177 or 008178 or 008179 or 008180； 008181 or 008182 or 008183 or 008184 or 008185 or 008186 or 008187 or 008188Intercell HO RequestMSC切换出邻近小区请求次数： 014000 (源小区)切换出邻近小区切换请求(分原因)：014001 or 014002 or 014003 or 014004 or 014005 or 014006 or 014007 or 014008 or 014009 or 014010 or 014011 or 014012Intercell Handover Response目标小区TCH占用成功次数(所有的)： 008057TCH占用成功(BSC内入小区切换)：008064(目标小区)目标小区BSC内入小区切换次数： 008152Figure.27 BSC内小区间切换成功流程，后续流程及计数器，附图二MSBTS (Source)BSCBTS (Target)MSCBSC整体小区间切换成功000026目标小区BSC内入小区切换成功次数： 008191目标小区BSC内切自900/1800小区成功次数：008193 or 008194源小区BSC内出小区切向900/1800小区成功次数： 008197 or 008198源小区BSC内出小区切换成功次数： 0008195BSC整体900 - 1800小区间切换成功次数：000027 or 000028BSC整体切换成功分原因:000071 or 000072 or 000073 or 000074 or 000075 or 000076 or 000077 or 000078 or 000079 or 000080 or 000081Handover CompleteHandover Performed切换自邻近小区成功计数器： 015001 (目标小区)RF Channel ReleaseInternal Clear ProcedureBSC整体层间成功次数(上层到下层)： (000082)BSC整体层间成功次数(下层到上层)： (000083)Handover Access切换出邻近小区成功次数： 014013 (源小区)切换出邻近小区切换成功次数(分原因)：014014 or 014015 or 014016 or 014017 or 014018 or 014019 or 014020 or 014021 or 014022 or 014023 or 014024 or 014025Figure.28 BSC内小区内切换成功流程，省略呼叫建立流程及相关计数器MSCMSBTSBSCBSC整体小区内切换总数000019Measurement ResultMeasurement ReportCell 小区内切换请求：008216Cell小区内切换请求分原因008218 or 008219 or 008220小区切换尝试次数分原因： 008163 or 008164 or 008165 or 008166 or 008167 or 008168 or 008169 or 008170 or 008171 or 008172 or 008173 or 008174BSC整体切换判决分原因：000060 or 000061 or 000062 or 000063 or 000064 or 000065 or 000066 or 000067 or 000068 or 000069 or 000070Handover AlgorithmHandover Command Handover AccessHandover CompleteHandover DetectionEstablish IndicationBSC整体