SMS流程分析Word下载.docx
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3.7 优先级（Priority） 9
4 短消息流程 9
4.1移动始发短消息的基本流程 9
4.2移动终结短消息的基本流程 12
5 短消息异常流程 14
5.1 短消息网关错误（GT码错误……） 14
5.3 MSC或SGSN错误（MSC号段GT错误，未做……） 15
5.4 VLR信息获取错误 16
5.5 RR侧的错误（无寻呼，数据传输时丢失） 17
6 短消息提醒流程 20
6.1 可及通知流程 20
6.2 MS内存可用通知流程 21
7 协议层次 22
8 短消息传递时使用的信道 23
9 SMS的无线接口协议 23
9.1 ShortMessageTransferLayer（SM-TL） 23
9.2 ShortMessageRelayLayer（SM-RL） 24
9.3 CM-sublayer 27
1Reference
0411700 Point-to-pointshortmessageservicesupportonmobileradiointerface0340720 TechnicalrealizationoftheShortMessageService（SMS）
0341610 ShortMessageServiceCellBroadcast
0412600 ShortMessageServiceCellBroadcast（SMSCB）supportonthemobileradiointerface0339600 InterfaceprotocolsfortheconnectionofShortMessageServiceCentres（SMSCs）to
ShortMessageEntities（SMEs）
2Definitions
activeMS:
Aswitched-onmobilestationwithaSIM/UICCsee3GPPTS31.101[31]moduleattached.
alert-SC:
ServiceelementprovidedbyaGSM/UMTSPLMNtoinformanSCwhichhaspreviouslyinitiatedunsuccessfulshortmessagedeliveryattempt（s）toaspecificMS,thattheMSisnowrecognizedbythePLMNtohaverecoveredoperation.
statusreport:
SCinformingtheoriginatingMSoftheoutcomeofashortmessagesubmittedtoanSME.
GatewayMSCForShortMessageService（SMS-GMSC）:
AfunctionofanMSCcapableofreceivingashortmessagefromanSC,interrogatinganHLRforroutinginformationandSMSinfo,anddeliveringtheshortmessagetotheVMSCortheSGSNoftherecipientMS.
InterworkingMSCForShortMessageService（SMS-IWMSC）:
AfunctionofanMSCcapableofreceivingashortmessagefromwithinthePLMNandsubmittingittotherecipientSC.
Messages-Waiting（MW）:
ServiceelementthatmakesaPLMNstoreinformation
（Messages-Waiting-Indication）,listingthoseSCsthathavemadeunsuccessfulshortmessagedeliveryattemptstoMSsinthatPLMN.
Messages-Waiting-Indication（MWI）:
DatatobestoredintheHLRandVLRwithwhichanMSisassociated,indicatingthatthereisoneormoremessageswaitinginasetofSCstobedeliveredtotheMS（duetounsuccessfuldeliveryattempt（s））.
Messages-Waiting-Data（MWD）:
ApartoftheMWItobestoredintheHLR.MWDconsistsofanaddresslistoftheSCswhichhavemessageswaitingtobedeliveredtotheMS.
Mobile-servicesSwitchingCentre（MSC）:
TheMobile-servicesSwitchingCentreisanexchangewhichperformsswitchingfunctionsformobilestationslocatedinageographicalareadesignatedastheMSCarea.
Mobile-Station-Memory-Capacity-Exceeded-Flag（MCEF）:
ApartoftheMWItobestoredintheHLR.MCEFisaBooleanparameterindicatingiftheaddresslistofMWDcontainsoneormoreentriesbecauseanattempttodeliverashortmessagetoanMShasfailedwithacauseofMSMemoryCapacityExceeded.
Mobile-Station-Not-Reachable-Flag（MNRF）:
ThepartoftheMWItobestoredintheVLRandtheHLR.MNRFisaBooleanparameterindicatingiftheaddresslistofMWDcontainsoneormoreentriesbecauseanattempttodeliverashortmessagetoanMShasfailedwithacauseofAbsentSubscriber.
Mobile-station-Not-Reachable-for-GPRS（MNRG）:
ThepartoftheMWItobestoredintheSGSNandtheHLR.MNRGisaBooleanparameterindicatingiftheaddresslistofMWDcontainsoneormoreentriesbecauseanattempttodeliverashortmessagetoanMShasfailedwithacauseofAbsentSubscriber.
Mobile-Station-Not-Reachable-Reason（MNRR）:
ThepartoftheMWIintheHLRwhichstoresthereasonforanMSbeingabsentwhenanattempttodeliverashortmessagetoanMSfailsattheMSCwithacauseofAbsentSubscriber.
More-Messages-To-Send（MMS）:
InformationelementofferinganMSreceivingashortmessagefromanSCtheinformationwhethertherearestillmoremessageswaitingtobesentfromthatSCtotheMS.TheTP-MMSelement（conveyedintheTransferlayer）iscopiedintotheRP-MMSelement（conveyedintheRelaylayer）.ItispossiblewithPhase2andlaterversionsofMAP（3GPPTS29.002[15]）fortheRP-MMSelementtokeepanSMtransactionopenbetweentheGMSCandtheMSinthecasewheretherearemore-messages-to-send.EarlierversionsofMAPsupportthetransportofthe
TP-MMSelement.
priority:
ServiceelementenablingtheSCorSMEtorequestashortmessagedeliveryattempttoanMSirrespectiveofwhetherornottheMShasbeenidentifiedastemporarilyabsent.
protocol-identifier:
Informationelementbywhichtheoriginatorofashortmessage（eitheranSCoranMS）mayrefertoahigherlayerprotocol.
replypathprocedure:
AmechanismwhichallowsanSMEtorequestthatanSCshouldbepermittedtohandleareplysentinresponsetoamessagepreviouslysentfromthatSMEtoanotherSME.ThismayhappeneventhoughtheSCmaybeunknowntotheSMEwhichreceivedtheinitialmessage.
report:
ResponsefromeitherthenetworkortherecipientuponashortmessagebeingsentfromeitheranSCoranMS.Areportmaybeadeliveryreport,whichconfirmsthedeliveryoftheshortmessageto
therecipient,oritmaybeafailurereport,whichinformstheoriginatorthattheshortmessagewasneverdeliveredandthereasonwhy.
WhenissuedbytheServiceCentre,thedeliveryreportconfirmsthereceptionoftheShortMessagebytheSC,andnotthedeliveryoftheShortMessagetotheSME.
WhenissuedbytheMobileStation,thedeliveryreportconfirmsthereceptionoftheShortMessagebytheMobileStation,andnotthedeliveryoftheShortMessagetotheuser.
replaceshortmessagetype:
ArangeofvaluesintheProtocolIdentifierwhichallowsanindicationtobesentwithashortmessage（MTorMO）thattheshortmessageisofaparticulartypeallowingthereceivingMSortheSCtoreplaceanexistingmessageofthesametypeheldintheSC,theMEorontheSIM/UICC,provideditcomes:
-inMTcases:
fromthesameSCandoriginatingaddress;
-inMOcases:
fromthesameMS.
ServiceCentre（SC）:
Functionresponsiblefortherelayingandstore-and-forwardingofashortmessagebetweenanSMEandanMS.TheSCisnotapartoftheGSM/UMTSPLMN,howeverMSC
andSCmaybeintegrated.（短信业务中心，主要就是在SME和MS之间层递，存储转发短信，
一般情况下他时短消息数据库）。
ServingGPRSSupportNode（SGSN）:
TheServingGPRSSupportNodeisanexchangewhichperformspacketswitchingfunctionsformobilestationslocatedinageographicalareadesignatedastheSGSNarea.
shortmessage:
InformationthatmaybeconveyedbymeansoftheShortMessageServicedescribedinthepresentdocument.
ShortMessageEntity（SME）:
AnentitywhichmaysendorreceiveShortMessages.TheSMEmaybelocatedinafixednetwork,anMS,oranSC.（可以接受和发送短信的实体，他存在与SC和MS中）
SMS-STATUS-REPORT:
ShortmessagetransferprotocoldataunitinformingthereceivingMSofthestatusofamobileoriginatedshortmessagepreviouslysubmittedbytheMS,i.e.whethertheSCwasabletoforwardthemessageornot,orwhetherthemessagewasstoredintheSCforlaterdelivery.
SMS-COMMAND:
ShortmessagetransferprotocoldataunitwhichenablesanMStoinvokeanoperationattheSC.AnMSmaythen,forexample,deleteashortmessage,cancela
TP-Status-Report-Request,enquireaboutthestatusofashortmessageorrequestanotherfunctiontobeperformedbytheSC.
ThetypeofoperationisindicatedbytheTP-Command-TypeandtheparticularSMtooperateonisindicatedbytheTP-Message-NumberandtheTP-Destination-Address.Receiptofan
SMS-COMMANDisconfirmedbyanRP-ACKorRP-ERROR.InthecaseofcertainSMS-COMMANDs,anSMS-STATUS-REPORTmaybesent,wheretheoutcomeoftheSMS-COMMANDispassedinitsTP-Statusfield.
SMS-DELIVER:
Shortmessagetransferprotocoldataunitcontaininguserdata（theshortmessage）,beingsentfromanSCtoanMS.
SMS-SUBMIT:
Shortmessagetransferprotocoldataunitcontaininguserdata（theshortmessage）,beingsentfromanMStoanSC.
Service-Centre-Time-Stamp（SCTS）:
InformationelementofferingtherecipientofashortmessagetheinformationofwhenthemessagearrivedattheSM-TLentityoftheSC.Thetimeofarrivalcomprisestheyear,month,day,hour,minute,secondandtimezone.
Validity-Period（VP）:
InformationelementenablingtheoriginatorMStoindicatethetimeperiodduringwhichtheoriginatorconsiderstheshortmessagetobevalid.
3短消息的业务信元
短消息由7个业务信元组成，他们是如下
3.1有效周期（ValidityPeriod）
是一个InformationElement（IE），此信元是MS在传递SMS-SUBMIT消息到SC时，在短消息内容时可能包含了一个时间周期值（TP-ValidityPeriod），这个表明了多少时间在短消息中心是有效的，也就是在有效周期内SC中心保证此短信是有效的。
此消息是MO手机上设置的。
3.2业务中心时间戳（ServiceCentreTimeStamp）
是一个InformationElement（IE），SC通过此信息元通知接收MS关于一个有效的短消息时间在SM-TL协议实体SC。
这个消息被包含在SMS-DELIVR，并被派发到MS中，用来表明此短消息是SC什么时候发给MS的。
此消息可以在接收短消息上可以查看。
3.3协议标识（ProtocolIdenitifier）
是一个InformationElement（IE），此信息元给SM-TL使用，不是提及的高层协议，就是某种交互的特定电信设备。
3.4多条短消息的发送（MoreMessagetosend）
是一个InformationElement（IE），此信息元是SC通知MS说明SC内有多条SMS需要发送给
MS，是一个布尔参数，承载在SMS-DELIVER消息中。
3.5提醒短消息中心（AlertingSC）
是一个业务信元（ServiceElement），他标识PLMN有一个能力通知SC，这个MS由于用户不可及，手机内存满导致MS无法正常的短消息，而MS在可以及和有手机有新的内存的时候，HLR通过Alerting-SC通知SC在此发送短消息。
3.6消息等待（MessageWait）
消息等待是一个业务信元（ServiceElement），允许PLMN上提供给HLR、VLR、SGSN一种能力，使主叫短信等待派送到被叫MS上。
这仅仅在MT先前发送不成功的情况下使用，如暂时缺席，内存满。
此信息元被标识为MessageWaitIndication（MWI），MWI由MessageWaitData
（MWD），MobileStationNotReachableFlag（MNRF），MobileStationNotReachableforGPRS
（MNRG），MobileStationNotReachableReason（MNRR
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