斯里兰卡城域网IPTV和FTTH项目.ppt

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1、IntroductionofIPTV目录ImplementationSchemeofFTTxIntroductionofIPMANTwotechnologiesofInteractivetelevisionIPQAMIPTV图1、IPQAM示意图图2、IPTV示意图IntheIPQAMtechnology,theSTBcontrolinformationandthevideostreamsweretransmittedthroughdifferentpathways.InteractivesignalsliketheSTBaccessauthenticationandtheEPG

2、InformationbrowsingareinteractedthroughIPbi-directionalchannel.However,audioandvideostreamsaretransmittedtoIPQAMequipmentinappropriateencapsulationformat.TheequipmentmodulatesthestreamstoRFsignals,thentransmitsthesignalstotheSTBthroughtheHFCnetwork.ThebiggestdifferencebetweentheIPQAMtechnolog

3、yandtheIPTVtechnologyisthattheIPTVusesonlytheIPnetworknomattertheaudioandvideostreamsorthetwo-wayinteractionsignals.ToIPTV,HFCisnotNecessary,andIPTVSTBhavn’tRFInputinterface.Thetwotechnologies,IPQAMandIPTVareusuallyusedasbi-directionalservicesinInteractiveTV.IPQAMisalwaysusedinthesystemofradi

4、oandtelevision,whilethesystemoftelecommunicationsismainlybasedonpureInternetProtocol(IPTV).[IPnetwork]IPTVSystemArchitecture（OnlyforIPNetwork）IPCDNWAN/MANHomeNetworkCDNSTBServiceoperationUsermanagementBMSInterfaceSPmanagementBillingmanagementAAAStatisticalanalysisCDNManagerContentmanagementSy

5、stemmanagementEPGServerBroadcastingcontrolsystemContentoperationCPE/HomegatewayContentGenerateCABOSS系统IntroductionoflivebroadcastsIPTVNetworkstructureUnicastMulticastIPTVNetworkstructure-FTTHIPTVNetworkstructure-FTTBIP-QAMSystemArchitecture（forHFC&IP）Non-streamingmediaapplicationservicesTheor

6、iginalsourceofthefilmContentlayerServiceplatformlayerCodingContentManagementAAASystemPlaybacksystemInteractiveservicesplatformDatatypeapplicationsEncoderMultiplexerModulatorBroadcastingSystemＣＡＤＶＢ－ＣserviceplatformTransportLayerIPMANHFCUnifiedportalOn-demandchannelsData-applicationsLivechannel

7、sApplicationpresentationlayerClientlayerEnhancedSTBBasicSTBScramblerBRAS/OLT/SWIP-QAMDeviceIP-QAMSystemNetworkstructure-CMTS+CMIP-QAMSystemNetworkstructure-EPON+EOCIP-QAMSystemNetworkstructure-EPON+LANIntroductionofIPTV目录ImplementationSchemeo