一種新型基站系統(tǒng)接入點部分呼叫處理的設(shè)計與實現(xiàn).pdf

1、華中科技大學(xué)碩士學(xué)位論文一種新型基站系統(tǒng)接入點部分呼叫處理的設(shè)計與實現(xiàn)姓名：丁偉申請學(xué)位級別：碩士專業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：黃本雄20070201VAbstractAsthethemostimptantequipmentofmobilecommunicationsystembasestationisundergoingprofoundchanges.BasedontheGSMsystemreferencedthedesignidea

2、ofsoftbasestationthepapergivesthesolutionofanewBSS.ThetwopartsofthenewBSSACAPareadoptedthemasterslavestructure.TheequipmentsofnewBSStransptwkalluseIPtechnique.ThenewBSSaccdswithmodularizationIPdistributiondevelopmenttren

3、dofbasestation.ThepaperfirstlyaddressesthesystemstructureinterfacelayeredprotocolmodeloftraditionalBSSofGSM.SecondlythispaperdiscussesthestructurefeaturesofthenewBSScarriesthroughresearchontheAPitssoftwarearchitecturepoi

4、ntsthatcallhlingisthecetrafficofAPtrafficapplicationsubsystem.ThirdbasedonthefunctionoftrafficapplicationofAPitdividestrafficapplicationintosixmodulesthendiscussestheinterfacescommunicationsignalingofeachmodulerelatedtoc

5、allhlingatdetail.FourththispaperanalyzesthemessageflowadoptsthemethodoftransferringcallinfmationfrommasterAPtoslaveAPtocompletetheestablishmentofcallsetup.Thenitexplainsthethereasonsftheoccurrenceofexceptionsinmessageflo

6、wthendiscussesthehlingoftwotypicallyexceptions.Fifththispapergivesthemodeloffinitestatemachineofcallhlinginthedesignprocessoffinitestatemachineitsimplifiesthefinitestatemachinebysummarizingtheexceptionsasfourcasesofexcep

7、tions.Atlastthepapergivesthedesignofkeydatastructureofthecallhling.Testsindicatethatcallhlingcancompletethewholeprocessofcallinthesituationofexceptionitcanperfmthecrectexceptionhlingflowreleasesthechannels.Keywds:newBSSA