爱立信内部培训资料-局数据

AXESystemTesting1ExchangeData1TableofContents1.CallHandlinginAXE5Introduction5TheDataStructure6RingingandSupervision10ChapterSummary162.SizeAlteration17Introduction17InitialSetting18WhatisaDatafile?21ChapterSummary243.DeviceandRouteData25ChapterIntroduction25DefinitionofRegionalProcessor25DefinitionofExtensionModule28DefinitionofRoutes30ChapterSummary374.Analyses,aSurvey39Introduction39AnalysisofB-number39ChapterSummary446.RouteAnalysis45Introduction45AnalysesinGeneral45TheBasicPrinciplesofRouteAnalysis46ChapterSummary577.HundredGroups59Introduction59ExchangeData2WhatisaHundredGroup?59SpecificationofAreaCode60ChangeofHundredGroups62ChapterSummary638.Charging65Introduction65PulseMeteringandTollTicketing65FunctionBlocksinCHS67AnalysisTables,Survey68TrafficActivityAnalysis69ChargingCaseBranchingAnalysis71ChargingProgramAnalysis72ExtendedChargingAnalysis73TariffClassAnalysis74SwitchingClassAnalysis74Tariffs76OperationalInstructions77OtherChargingRelatedServices77TheCalendarFunction79ChapterSummary819.B-numberAnalysis83Introduction83Pre-analysisofB-numberInformation83ExampleofanAnalysisTable8510.End-of-SelectionAnalysis97Introduction97ThePurposeofEnd-of-SelectionAnalysis97End-of-SelectionCodes98TheAnalysisinBlockRA99ActionsPossibletoInitiateintheEOSTable100BranchingintheEOSTable102Commands103ChapterSummary10311.AccessBarringandTimeSupervision105Introduction105TableofContents3AccessBarringinGeneral105DestinationCodes105AccessBarringAnalysis107TimeSupervisioningeneral109ChapterSummary11012.A-numberAnalysis111Introduction111Pre-AnalysisofA-numberInformation111WhyisA-numberAnalysisPerformed?112AnalysisResults113LoadingandChangingData114ChapterSummary11813.EqualAccessAnalysis119Introduction119Survey119Subscribercategoryandsignallingsystem120CarrierAccessCodenotDialled120CarrierAccessCodeDialledbytheSubscriber122ExampleofanAnalysisTable123Commands123ChapterSummary12414.ServiceScreeningAnalysis125Introduction125TheAnalysis125TheServicesthatcanbeBarred126TheCommands126ChapterSummary12615.ISDN-SpecificAnalyses127Introduction127TelecommunicationServiceAnalysis127ServiceIndicatorAnalysis130ChapterSummary13216.SemipermanentConnections133ExchangeData4Introduction133GeneralaboutSemipermanentConnections133CommandSurvey140ChapterSummary14051.CallHandlinginAXEFigure1.11.1IntroductionTheinternalinterworkofanAXEexchangeisimpossibleto“see”.Thiscreatesaproblemaserrorsinprogramanddataaredifficulttofindascomparedwithanalogexchanges.ThischapterdescribeshowordinarycallsarehandledbythesoftwareofAXE.Althoughthedescriptionissimplified,theinformationgivenwillgreatlyfacilitatethehandlingofexchangedata.ChapterObjectivesAftercompletingthischapter,youwillbeableto:•describetheblockinterworkduringaninternalcall•describetheblockinterworkduringanoutgoingcallusingMFCandCCITTNo7signalling.ExchangeData61.2TheDataStructureBeforestudyingthetraffichandlinginsidetheAXEsoftware,wemusttakealookattheinternaldatastructure.ThedatastructureandtheinterrelationshipbetweendataandhardwareareimportantfeaturesoftheAXEsoftware.PleasestudyFigure1.2.Figure1.2ThestructureofonefunctionblockIfablockhashardware,liketheblockLIinthefigure,thereareofcoursehardwarecircuitsinsidethemagazines.TheregionalsoftwareintheRPortheEMRPcontrolsthehardwareandtakescareoftheroutinetasks.Anychangesinoperationpointsarereportedtothecentralsoftwarebymeansofasignalthatincludesinformationabouttheaffecteddevice.Thecentralsoftwarecontainsaprogramandsomedata.Thedataisdividedintorecordswhereeachrecordrepresentsonehardwarecircuit.Eachrecordcontainsvariableswhichareusedtostoredataaboutthedevice.Informationlikestateofdeviceandnumberofdisturbancesisstoredinthevariables.ThenumberofrecordsinthedataofblockLImustbeequaltothenumberofhardwaredevices.Blocks(suchasREandCJ)thatdonotcontainhardwaremayalsohaverecords.Inthiscaseonerecordisusedtostorethecalldataforonecall.Thenumberofrecordsrequiredinsidetheblocksisdependentonthesizeandthetrafficvolumeoftheexchange.IftheblockREcontains100records,itcantakepartinthesetting-upof100simultaneouscalls.Whenthedifferenttrafficcasesaredescribedinthischapter,eachblockisillustratedbyaboxwiththeblocknameinside.Theboxrepresentstheprogramandthedataoftheblock.However,itmustbenotedthatonerecordinsidetheblockisspeciallyreservedforthecall.Allrecordsbelongingtothesamecallarelinkedtoeachotherbymeansofpointers.Thepointerspointfromonerecordtoanother,creating“chains”ofrecordsHardwareLICRegionalsoftwareLIRCentralsoftwareLIUProgramDataOnerecordperLICCallHandlinginAXE7insidethesoftware.Thesechainsmustbeintactaslongasacallisestablished.Duringdisconnectionofthecall,thechainsarebrokenandtheparticipatingrecordsaresettoidleagain.1.2.1ConnectionofRegisterInthisdocumentthecallhandlinginAXEisdescribedbymeansofanumberoffigureswithexplanatorytext.Onlythehardwareandthecentralsoftwareoftheblocksareshown.PleasestudyFigure1.3.Figure1.3ConnectionofregisterandsendingofdialtoneWhenasubscriberliftsthehandset,thisisdetectedbythelineinterfacetowhichhe/sheisconnected.TheregionalsoftwareofblockLIsendsamessagetothece