IPTV流量帶寬計(jì)算

流量帶寬計(jì)算各節(jié)點(diǎn)帶寬需求計(jì)算單播帶寬：根據(jù)用戶模型表，計(jì)算得出每個(gè)節(jié)點(diǎn)的單播帶寬。信令帶寬：根據(jù)各節(jié)點(diǎn)組網(wǎng)計(jì)算得到每個(gè)節(jié)點(diǎn)信令帶寬。直播帶寬：1）如果是全網(wǎng)組播，則每個(gè)節(jié)點(diǎn)只需要計(jì)算一份直播帶寬，如50個(gè)H264頻道，為2Mx50=100Mbps。2）如果是組播中繼，則：中心節(jié)點(diǎn)帶寬與下掛的區(qū)域中心（邊緣節(jié)點(diǎn)）個(gè)數(shù)有關(guān)，為n+1的關(guān)系。如：某中心節(jié)點(diǎn)下掛3區(qū)域中心，則帶寬需要計(jì)算3+1=4份。區(qū)域中心帶寬與下掛的邊緣節(jié)點(diǎn)個(gè)數(shù)有關(guān)，為n+1的關(guān)系。如：某區(qū)域中心節(jié)點(diǎn)下掛12個(gè)邊緣節(jié)點(diǎn)，則帶寬需要計(jì)算12+1=13份。每個(gè)邊緣節(jié)點(diǎn)需要一份直播帶寬，如50個(gè)H264頻道，為2Mx50=100Mbps。3）如果是全網(wǎng)單播，則：中心節(jié)點(diǎn)和區(qū)域中心節(jié)點(diǎn)計(jì)算方法與組播中繼相同。邊緣節(jié)點(diǎn)帶寬需要根據(jù)用戶訪問模型計(jì)算本節(jié)點(diǎn)直播用戶數(shù)獲得。如某邊緣節(jié)點(diǎn)帶用戶10000個(gè)，H264頻道50個(gè)，按照用戶訪問模型，有1850直播并發(fā)訪問。則需要的帶寬為：2Mx50+2Mx1850=3800Mbps，其中2Mx50為中繼來的直播頻道帶寬。匯總獲得每個(gè)節(jié)點(diǎn)的接入帶寬需求：節(jié)點(diǎn)帶寬＝單播帶寬＋直播帶寬＋信令帶寬帶寬計(jì)算實(shí)例在計(jì)算之前先通過查看FRS了解頻道碼率、用戶數(shù)、頻道數(shù)等參數(shù)。①在線率和并發(fā)率和哪些部件有關(guān)系在線率：EPG容量并發(fā)率：HMS性能②基礎(chǔ)帶寬計(jì)算BitRate（kbps）VideoBitRateAudioBitRateFormatLiveTVVODAudioOnlyN/A64√×AdaptiveBitRate1（400*224）@21415064√√AdaptiveBitRate2（400*224）@46440064√√AdaptiveBitRate3（640*360）@66460064√√AdaptiveBitRate4（640*360）√AdaptiveBitRate5（960*540）@19281800128√√HLSSDBitRate=（64+214+464+664+1328+1928）/=

可以通過以上方式計(jì)算出標(biāo)清或者高清的的帶寬DimensionforIPTVServicesCommonassumptionsItemValueFormatRatioAverageBitrateofSDcontent(LiveTV)Mbps90%AverageBitrateofSDcontent(VOD)MbpsAverageBitrateofHDcontent(LiveTV)9Mbps10%AverageBitrateofHDcontent(VOD)7MbpsAveragebitrateofRadiochannels384KbpsN/AAveragebitrateofPIPStream300KbpsN/ASDconcurrentunicastRatio（并發(fā)率）HDconcurrentunicastRatio90%10%AverageBitrateofHDcontent(LiveTV)ItemInscopeDescriptionIPTVPlatformCapacityDimensionsCapability（支撐用戶數(shù)目）175000PlatformHardwareCapabilityforTotalTerminals.NetworkStructure2LevelDistributedstructureCentralnodeqty.1CentralNodeCapability70000PlatformCapabilityforCentralNodeTotalTerminalsEdgenodeqty.3NumberofEdgeSidesEdgeNodeCapability35000PlatformCapabilityforeachEdgeNodetotalterminalsUserModelDimensions（用戶行為習(xí)慣的模型）OnlineRatio50%RatioofOnlineTerminals=onlineTerminals/TotalTerminals.RatioofVOD/TSTV/Catch-UpTV/nPVRconcurrentUnicastTerminals（單播）2%RatioofUnicastTerminals=Unicastterminals/TotalTerminals.RatioofFCCconcurrentunicastTerminals5%RatioofFCCTerminals=FCCTerminals/LiveTVTerminals(OnlineRatio-UnicastRatio).ContentDimensions(SD)：頻道信息SDLiveChannelQty.235SDLiveChannelQuantityPIPchannelofSDLiveTVchannelQty235PictureInPictureChannelQuantitySDCatch-UpTVChannelQty.235SDCatch-UpTVChannelQuantitySDCatch-UpTVTotalHours(H)2480SDCatch-UpTVChannelRecordingHours,(15channelsfor3*24hours,rest1400hoursremainingchannelsinlast14daysforrestchannels),1400hourscanbeusedbyTStouploadCatchUpContentfrom3rdpartyorselectedrecordingforsomechannels.SDTSTVChannelQty.15SDTSTVChannelQuantitySDTSTVHours(H)1SDTSTVChannelRecordingHoursSDnPVRChannelQty35SDnPVRchannelQuantitySDnPVRRecordingHour10days*24HoursSDnPVRchannelrecordinghours.SDVODContentHours(H)2000SDVODContentHoursNVODChannelQty.(SD)10SDNVODChannelQuantityMosaicChannelQty.(SD)1SystemSDMosaicChannelQuantityRadioChannel10RadioChannelQuantityContentModelDimensions(HD)HDLiveChannelQty.30HDLiveChannelQuantityPIPchannelofHDLiveTVchannelQty30PictureInPictureChannelQuantityHDCatch-UpTVChannelQty.30HDCatch-UpTVChannelQuantityHDCatch-UpTVTotalHours(H)640HDCatch-UpTVChannelRecordingHours(5channelsfor3*24Hours,rest280hoursforrestremainingchannelsinlast14days),280hourscanbeusedbyTStouploadCatchUpContentfrom3rdpartyorselectedrecordingforsomechannels.HDTSTVChannelQty.5HDTSTVChannelQuantityHDTSTVHours(H)1HDTSTVChannelRecordingHoursHDVODContentHours(H)1000HDVODContentHoursHDnPVRChannelQuantity5HDnPVRchannelquantityHDnPVRrecordingHours10days*24HoursHDnPVRchannelrecordinghoursNVODChannelquantity(HD)0NVODchannelquantityNPVRCalculateModeforIPTV(Catch-UpTVRate)10days*24HoursSocialTVUserFeedsPerDay10Averagefeeds(activities)perdayperuserRefreshingPeriodofFeedsCount60User’saveragerefreshingtimeforfeedscount.Usercangettheunreadmessagenumberbeforerefreshing.Theshorterthisperiodis,thehighersystemperformancerequired.HuaweiassumetheRefreshingPeriodofFeedsCountis60secondsbydefault.DimensionforOTTServicesCommonassumptionSubs.RatioforTerminalTypesOTTSTBPCiPADiPhoneAndroidPADAndroidPhoneRatio20%20%20%15%5%20%SDconcurrentunicstRatioHDconcurrentunicastRatio90%10%FormatSubscriberRatioRate(Kbps)OTTSDHTTPStreamingdynamicrateHLS25%250KbpsHLS25%500KbpsHLS25%700KbpsHLS25%1MbpsOTTHDHTTPStreamingdynamicrateHLS50%2MbpsHLS50%3MbpsPIPStreamHLSN/A250Kbps(<300KbpsforOTTHD)DimensionsforOTTItemInscopeDescriptionOTTPlatformCapacityDimensionsCapability60000PlatformHardwareCapabilityforTotalTerminals.NetworkStructure2LevelofDistributenetworkStructure.Centralnodeqty.1CentralNodeCapability24000PlatformCapabilityforCentralNodeTotalTerminalsEdgenodesqty.3EdgenodequantityEdgeNodeCapability12000PlatformCapabilityforEdgeNodeTotalTerminalsUserTrafiicModelDimensionsOnlineRatio30%RatioofOnlineTerminals=onlineTerminals/TotalTerminals.ConcurrentRatio10%RatioofconcurrentTerminals=concurrentTerminals/TotalTerminals.ContentModelDimensions(SD)SDLiveChannelQty.40LiveChannelQuantitySDCatch-UpTVChannelQty.40Catch-UpTVChannelQuantitySDCatch-UpTVTotalHours1140Catch-UpTVChannelRecordingHours(10channelsfor3*24hours,rest420hoursforrestremainingchannelsinlast14days)420hourscanbeusedbyTStouploadCatchUpContentfrom3rdparty(asVOD)orselectedrecordingforsomechannels.SDTSTVChannelQty.10TSTVChannelQuantitySDTSTVHours1TSTVChannelRecordingHoursSDVODContentHours1000VODContentHoursContentModelDimensions(SD)nPVRChannelQuantity25nPVRchannelquantity.nPVRchannelrecordinghours10Days*24HoursnPVRchannelrecordinghoursContentModelDimensions(HD)HDLiveChannelQty.5HDLiveChannelQuantityHDCatch-UpTVChannelQty.5HDCatch-UpTVChannelQuantityHDCatch-UpTVTotalHours(H)444HDCatch-UpTVChannelRecordingHours,(5channelsfor3*24Hours,rest84hoursforrestremainingshowsinlast14days)84hourscanbeusedbyTStouploadCatchUpContentfrom3rdparty(asVOD)orselectedrecordingforsomechannels.HDTSTVChannelQty.5HDTSTVChannelQuantityHDTSTVHours(H)1HDTSTVChannelRecordingHoursHDVODContentHours(H)1000HDVODContentHoursnPVRChannelQuantity5nPVRchannelquantitynPVRChannelrecordingduration10days*24HoursnPVRchannelrecordingdurationSocialTVUserFeedsPerDay10Averagefeeds(activities)perdayperuserRefreshingPeriodofFeedsCount60User’saveragerefreshingtimeforfeedscount.Usercangettheunreadmessagenumberbeforerefreshing.Theshorterthisperiodis,thehighersystemperformancerequired.HuaweiassumetheRefreshingPeriodofFeedsCountis60secondsbydefault.RefreshingPeriodofFeeds120User’saveragerefreshingtimeforfeeds.HuaweiassumetheRefreshingPeriodofFeedsis120secondsbydefault.IPTV業(yè)務(wù)帶寬計(jì)算中心節(jié)點(diǎn)：ServiceTypeStreamTypeRateBW

(Kbps)CHN

QTY.

(Mbps)RemarkStreamingTypeServiceNameIPTVSDLiveTVMulticast3584235*235SDchannelsHDLiveTVMulticast9216302709Mbps*30SDchannelsPIPMulticast300265300kbps*265livechannelsMosiacMulticast35841*1MosiacchannelNVODMulticast35841035*10NVODchannelsSDVOD/TSTV/CATCHUP/nPVRUnicast2560NA315070000users*2%concurrentratio*90%SDratio**025+70000users*2%concurrentratio*90%SDratio**用戶數(shù)*并發(fā)率*標(biāo)清的使用率*標(biāo)清帶寬HDVOD/TSTV/CATCHUP/nPVRUnicast7168NA98070000users*2%concurrentratio*10%HDratio*7MbpsFCCUnicastNANA680470000*(50%-2%)*5%**+*9Mbps)others(signalling&STBUpgrade&Mgmtetc.)UnicastNANA1000ReferencevalueUplink

(fromMSVSPlatformtoTSIGW)IPTVBTVMulticastBW(Mbps)BW=+270+++35)MbpsIPTVVOD&FCCUnicastBW(Mbps)10934BW=(3150+980+6804)MbpsIPTVsignaling&MGMTotherUnicastBW(Mbps)400100Mbps*3Edgesite,100MbpsforsubscribersIPTVSTBUpgradeUnicastBW(Mbps)400200MperoneUpgradeserverTotalTraffic(Mbps)totalIPTVoutputthroughputtrafficDownlink

(fromTSIGWtoMSVSPlatform)IPTVBTVMulticastBW(Mbps)fromlegacyTSHeadendtoCentersiteEPG/VODMetedata&Mediauploading/otherUnicastBW(Mbps)200fromlegacyTSCMS/BMS/OSS/SP&CPetc.toCentersite,includingOTTVODtransactionTotalTraffic(Mbps)totalIPTVinputthroughputtrafficTotalIPTVTrafficBW(Mbps)totalIPTVthroughputtraffic①假設(shè)VOD/TSTV/CATCHUP/nPVR所占用的帶寬都是則SDVOD/TSTV/CATCHUP/nPVR=70000users*2%concurrentratio*90%SDratio*如果VOD所占用的帶寬都是，TSTV/CATCHUP/nPVR占用的帶寬是計(jì)算結(jié)果=70000users*2%concurrentratio*90%SDratio**025+70000users*2%concurrentratio*90%SDratio**②FCC的計(jì)算帶寬=70000*(50%-2%)*5%**+*9Mbps)用戶數(shù)目*（在線數(shù)在線率-單播率）*并發(fā)率*（標(biāo)清使用率*帶寬+高清使用率+帶寬）邊緣節(jié)點(diǎn)：ServiceTypeStreamTypeRateBandwidth

(Kbps)CHN

QTY.

(Mbps)RemarkStreamingTypeServiceNameIPTVSDLiveTVMulticast3584235*235SDchannels（帶寬*頻道數(shù)）HDLiveTVMulticast9216302709Mbps*30SDchannelsPIPMulticast300265300kbps*265livechannelsMosiacMulticast35841*1MosiacchannelNVODMulticast35841035*10NVODchannelsSDVOD/TSTV/CATCHUP/nPVRUnicast2560NA157535000users*2%concurrentratio*90%SDratio*HDVOD/TSTV/CATCHUP/nPVRUnicast7168NA49035000users*2%concurrentratio*10%HDratio*7MbpsFCCUnicastNANA340235000*(50%-2%)*5%**+*7Mbps)othersUnicastNANA200ReferencevalueUplink(fromMSVSPlatformtoTSIPnetwork)IPTVVOD&FCCUnicastBW(Mbps)5467fromedgesiteIPTVHMStoIPTVSTBIPTVsignaling&MGMTotherUnicastBW(Mbps)10050Mbpsforcommunicationwithcentersite,50MbpsforsubscribersTotalTraffic(Mbps)5567totalIPTVoutputthroughputtrafficDownlink(fromTSIPnetworktoMSVSPlatform)IPTVBTVMulticastBW(Mbps)fromCentersitetoedgesiteFCC&HMS

=(235SD*+30HD*9Mbps)EPG/VODMetedata&Mediauploading/otherUnicastBW(Mbps)100fromCentersitetoedgesiteTotalTraffic(Mbps)totalIPTVinputthroughputtrafficTotalIPTVTrafficBW(Mbps)totalIPTVthroughputtrafficOTT業(yè)務(wù)帶寬計(jì)算中心節(jié)點(diǎn)：HLSProfileLiveTV

QTYVODCon.usersLiveTVCon.usersReamrkTypeRaito

(Kbps)SH/HDsub.RatioSD/HDProfileRatioVQ1(SD)25090%25%40AssumptiontheratioofVODandLiveTVis50%:50%

SDVOD/LiveTVConcurrentusersQTY=24000users*10%con.ratio*90%*50%用戶數(shù)*并發(fā)率*標(biāo)清使用率*比例VQ2(SD)50025%VQ3(SD)70025%VQ4(SD)102425%VQ5(HD)204810%50%5HDVOD/LiveTVConcurrentusersQTY=24000users*10%con.ratio*10%*50%

HDOTTshouldprovidelowrateprofileforsupportingOTTHDPIPserviceVQ6(HD)307250%VQ7(HD-PIP)250/TerminalTypeProfileBW.Req.

(Mbps)ReamrkTypeProfile

QTYConcurrentsub.PerprofileOTTSDVQ1~VQ445401620Concurrentsub.Perprofile=

24000users*10%con.sub.*90%ratio/4profiles用戶數(shù)*并發(fā)率*標(biāo)清使用率/VQ類型

SDBWReq.=

(24000users*10%con.sub.*90%ratio/4profiles)*3MbpsOTTHDVQ5~VQ72120750Concurrentsub.perprofile=

24000users*10%conc.sub.*10%ratio/2profiles

HDBWReq.=

(24000users*10%con.sub.*10%ratio/2profiles)*Uplink

(fromMSVSPlatformtoTSIPnetwork)OTTLiveTVHLSUnicastBW(Mbps)fromcentersitetoallOTTHMSof3*edgesite

BW=(3Mbps*40SDchannels+*5HDchannels)*3OTTSubscriberUnicastBW(Mbps)2370fromcentersitetoOTTterminal

BW=(1620+750)MbpsOTTsignaling&MGMTotherUnicastBW(Mbps)400100Mbps*3Edgesite,100MbpsforsubscribersOTTUpgradeUnicastBW(Mbps)400200MperoneUpgradeserver,2UPGserverintotal.TotalTraffic(Mbps)totalOTToutputthroughputtrafficDownlink(fromTSIPnetworktoMSVSPlatform)OTTLiveTVHLSUnicastBW(Mbps)fromlegacyTSHeadendtoCentersite

BW=(3Mbps*40SDchannels+*5HDchannels)*2CopiesTotalTraffic(Mbps)totalOTTinputthroughputtrafficTotalOTTtrafficBW(Mbps)totalOTTthroughputtraffic邊緣節(jié)點(diǎn)：ProfileLiveTV

QTYVOD/LiveTVLiveTVReamrkTypeRaito(Kbps)SH/HDsub,RatioSD/HDProfileRatioVQ1(SD)25090%25%40AssumptiontheratioofVODandLiveTVis50%:50%

SDVOD/LiveTVConcurrentusersQTY=12000users*10%con.ratio*90%*50%VQ2(SD)50025%VQ3(SD)70025%VQ4(SD)102425%VQ5(HD)204810%50%5HDVOD/LiveTVConcurrentusersQTY=12000users*10%con.ratio*10%*50%

HDOTTshouldprovidelowrateprofileforsupportingOTTHDPIPserviceVQ6(HD)307250%VQ7(HD-PIP)250/TerminalTypeProfileBandwidthRequirement

(Mbps)ReamrkTypeProfile

QTYSubscribersQTYforeachProfileOTTSDVQ1~VQ44270810Concurrentsub.Perprofile=

12000users*10%con.sub.*90%ratio/4profiles

SDBWReq.=

(12000users*10%con.s