IPTV流量带宽计算

流量带宽计算1各节点带宽需求计算单播带宽：根据用户模型表，计算得出每个节点的单播带宽。信令带宽：根据各节点组网计算得到每个节点信令带宽。直播带宽：1）如果是全网组播，则每个节点只需要计算一份直播带宽，如50个H264频道，为2Mx50=100Mbps。2）如果是组播中继，则:中心节点带宽与下挂的区域中心（边缘节点）个数有关，为n+1的关系。如：某中心节点下挂3区域中心，则带宽需要计算3+1=4份。区域中心带宽与下挂的边缘节点个数有关，为n+1的关系。如：某区域中心节点下挂12个边缘节点，则带宽需要计算12+1=13份。每个边缘节点需要一份直播带宽，如50个H264频道，为2Mx50=100Mbps。3）如果是全网单播，则：中心节点和区域中心节点计算 方法 快递客服问题件处理详细方法山木方法pdf计算方法pdf华与华方法下载八字理论方法下载 与组播中继相同。边缘节点带宽需要根据用户访问模型计算本节点直播用户数获得。如某边缘节点带用户10000个，H264频道50个，按照用户访问模型，有1850直播并发访问。则需要的带宽为：2Mx50+2Mx1850=3800Mbps，其中2Mx50为中继来的直播频道带宽。汇总获得每个节点的接入带宽需求：节点带宽=单播带宽+直播带宽+信令带宽2带宽计算实例在计算之前先通过查看FRS了解频道码率、用户数、频道数等参数。①在线率和并发率和哪些部件有关系在线率：EPG容量并发率：HMS性能②基础带宽计算BitRate（kbps）VideoBitRateAudioBitRateFormatLiveTVVODAudioOnlyN/A64H.264VXAdaptiveBitRate1（400*224）@21415064H.264VVAdaptiveBitRate2（400*224）@46440064H.264VVAdaptiveBitRate3（640*360）@66460064H.264VVAdaptiveBitRate4（640*360）@13281200128H.264VVAdaptiveBitRate5（960*540）@19281800128H.264VVHLSSDBitRate=(64+214+464+664+1328+1928)/0.8=5.828M可以通过以上方式计算出标清或者高清的的带宽DimensionforIPTVServicesCommonassumptonsItemValueFormatRatioAverageBitrateofSDcontent（LiveTV）3.5MbpsH.26490%AverageBitrateofSDcontent（VOD）2.5MbpsPH.264「AverageBitrateofHDcontent（LiveTV）9MbpsH.26410%AverageBitrateofHDcontent（VOD）7MbpsH.264AveragebitrateofRadiochannels384KbpsH.264N/AAveragebitrateofPIPStream300KbpsH.264N/ASDconcurrentunicastRatio（并发率）HDconcurrentunicastRatio90%10%AverageBitrateofHDcontent(LiveTV)ItemInscopeDescriptionIPTVPlatformCapacityDimensionsCapability（支撑用户数目）175000PlatformHardwareCapabilityforTotalTerminals.NetworkStructure2LevelDistributedstructureCentralnodeqty.1CentralNodeCapability70000PlatformCapabilityforCentralNodeTotalTerminalsEdgenodeqty.3NumberofEdgeSidesEdgeNodeCapability35000PlatformCapabilityforeachEdgeNodetotalterminalsUserModelDimensions（用户行为习惯的模型）OnlineRatio50%RatioofOnlineTerminals=onlineTerminals/TotalTerminals.RatioofVOD/TSTV/Catch-UpTV/nPVRconcurrentUnicastTerminals(单播)2%RatioofUnicastTerminals=Unicastterminals/TotalTerminals.RatioofFCCconcurrentunicastTerminals5%RatioofFCCTerminals=FCCTerminals/LiveTVTerminals(OnlineRatio-UnicastRatio).ContentDimensions(SD):频道信息SDLiveChannelQty.235SDLiveChannelQuantityPIPchannelofSDLiveTVchannelQty235PictureInPictureChannelQuantitySDCatch-UpTVChannelQty.235SDCatch-UpTVChannelQuantitySDCatch-UpTVTotalHours(H)2480SDCatch-UpTVChannelRecordingHours,(15channelsfor3*24hours,rest1400hoursremainingchannelsinlast14daysforrestchannels),1400hourscanbeusedbyTStouploadCatchUpContentfrom3partyorselectedrecordingforsomechannels.SDTSTVChannelQty.15SDTSTVChannelQuantity[SDTSTVHours(H)1SDTSTVChannelRecordingHoursSDnPVRChannelQty35SDnPVRchannelQuantitySDnPVRRecordingHour10days*24HoursSDnPVRchannelrecordinghours.SDVODContentHours(H)2000SDVODContentHoursNVODChannelQty.(SD)10SDNVODChannelQuantityMosaicChannelQty.(SD)1SystemSDMosaicChannelQuantityRadioChannel10RadioChannelQuantityContentModelDimensions(HD)HDLiveChannelQty.30HDLiveChannelQuantityPIPchannelofHDLiveTVchannelQty30PictureInPictureChannelQuantityHDCatch-UpTVChannelQty.30HDCatch-UpTVChannelQuantityHDCatch-UpTVTotalHours(H)640HDCatch-UpTVChannelRecordingHours(5channelsfor3*24Hours,rest280hoursforrestremainingchannelsinlast14days),280hourscanbeusedbyTStouploadCatchUpContentfrom3partyorselectedrecordingforsomechannels.「HDTSTVChannelQty.「5HDTSTVChannelQuantityHDTSTVHours(H)1HDTSTVChannelRecordingHoursHDVODContentHours(H)1000HDVODContentHoursHDnPVRChannelQuantity5HDnPVRchannelquantityHDnPVRrecordingHours10days*24HoursHDnPVRchannelrecordinghoursNVODChannelquantity(HD)0NVODchannelquantityNPVRCalculateModeforIPTV(Catch-UpTVRate)10days*24HoursSocialTVUserFeedsPerDay10Averagefeeds(activities)perdayperuserRefreshingPeriodofFeedsCount60User'saveragerefreshingtimeforfeedscount.Usercangettheunreadmessagenumberbeforerefreshing.Theshorterthisperiodis,thehighersystemperformaneerequired.HuaweiassumetheRefreshingPeriodofFeedsCountis60secondsbydefault.DimensionforOTTServicesCommonassumptionSubs.RatioforTerminalTypesOTTSTBPCiPADiPhoneAndroidPADAndroidPhoneRatio20%20%20%15%5%20%SDconcurrentunicstRatioHDconcurrentunicastRatio90%10%FormatSubscriberRatioRate(Kbps)OTTSDHTTPStreamingHLS25%250KbpsdynamicrateHLS25%500KbpsHLS25%700KbpsHLS25%1MbpsOTTHDHTTPStreamingHLS50%2MbpsdynamicrateHLS50%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)420hourscanbeusedbyTStouploadCatchUpContentfrom3party(asVOD)orselectedrecordingforsomechannels.SDTSTVChannelQty.10TSTVChannelQuantity:SDTSTVHours1TSTVChannelRecordingHoursSDVODContentHours1000VODContentHoursContentModelDimensions(SD)nPVRChannelQuantity25nPVRchannelquantity.nPVRchannelrecordinghours10Days*24HoursnPVRchannelrecordinghoursContentModelDimensions(HD)HDLiveChannelQty.5HDLiveChannelQuantityHDCatch-UpTVChannelQty.5HDCatch-UpTVChannelQuantityHDCatch-UpTVTotalHours(H)444HDCatch-UpTVChannelRecordingHours,(5channelsfor3*24Hours,rest84hoursforrestremainingshowsinlast14days)84hourscanbeusedbyTStouploadCatchUpContentfrom3party(asVOD)orselectedrecordingforsomechannels.HDTSTVChannelQty.5HDTSTVChannelQuantityHDTSTVHours(H)1HDTSTVChannelRecordingHoursHDVODContentHours(H)1000HDVODContentHoursnPVRChannelQuantity5nPVRchannelquantitynPVRChannelrecordingduration10days*24HoursnPVRchannelrecordingdurationSocialTVUserFeedsPerDay10Averagefeeds(activities)perdayperuserRefreshingPeriodofFeedsCount60User'averagerefreshingtimeforfeedscount.Usercangettheunreadmessagenumberbeforerefreshing.Theshorterthisperiodis,thehighersystemperformaneerequired.HuaweiassumetheRefreshingPeriodofFeedsCountis60secondsbydefault.RefreshingPeriodofFeeds120User'averagerefreshingtimeforfeeds.HuaweiassumetheRefreshingPeriodofFeedsis120secondsbydefault.IPTV业务带宽计算中心节点:ServiceTypeStreamTypeRateBW(Kbps)CHNQTY.BW.Req(Mbps)RemarkStreamingTypeServiceNameSDLiveTVMulticast3584235822.53.5Mbps*235SDchannelsHDLiveTVMulticast9216302709Mbps*30SDchannelsPIPMulticast30026577.6300kbps*265livechannelsMosiacMulticast358413.53.5Mbps*1MosiacchannelIPTVNVODMulticast358410353.5Mbps*10NVODchannels70000users*2%concurrentratio*90%SDSDratio*2.5Mbps*025+70000users*2%Unicast2560NA3150VOD/TSTV/CATCHUP/nPVRconcurrentratio*90%SDratio*3.5Mbps*0.75用户数*并发率*标清的使用率*标清带宽HDVOD/TSTV/CATCHUP/nPVRUnicast7168NA98070000users*2%concurrentratio*10%HDratio*7MbpsFCCUnicastNANA680470000*(50%-2%)*5%*(0.9*3.5Mbps+0.1*9Mbps)others(signalling&STBUpgrade&Mgmtetc.)UnicastNANA1000ReferencevalueUplink(fromMSVSPlatformtoTSIGW)IPTVBTVMulticastBW(Mbps)1208.6BW=(822.5+270+77.6+3.5+35)MbpsIPTVVOD&FCCUnicastBW(Mbps)10934BW=(3150+980+6804)MbpsIPTVsignaling&MGMTotherUnicastBW(Mbps)400100Mbps*3Edgesite,100MbpsforsubscribersIPTVSTBUpgradeUnicastBW(Mbps)400200MperoneUpgradeserverTotalTraffic(Mbps)12942.6totalIPTVoutputthroughputtrafficDownlink(fromTSIGWtoMSVSPlatform)IPTVBTVMulticastBW(Mbps)1208.6fromlegacyTSHeadendtoCentersiteEPG/VODMetedata&Mediauploading/otherUnicastBW(Mbps)200fromlegacyTSCMS/BMS/OSS/SP&CPetc.toCentersite,includingOTTVODtransactionTotalTraffic(Mbps)1408.6totalIPTVinputthroughputtrafficTotalIPTVTrafficBW(Mbps)14351.2totalIPTVthroughputtraffic①假设VOD/TSTV/CATCHUP/nPVR所占用的带宽都是2.5M则SDVOD/TSTV/CATCHUP/nPVR=70000users*2%concurrentratio*90%SDratio*2.5Mbps如果VOD所占用的带宽都是2.5M,TSTV/CATCHUP/nPVR占用的带宽是3.5计算结果=70000users*2%concurrentratio*90%SDratio*2.5Mbps*025+70000users*2%concurrentratio*90%SDratio*3.5Mbps*0.75②FCC的计算带宽=70000*(50%-2%)*5%*(0.9*3.5Mbps+0.1*9Mbps)用户数目*（在线数在线率-单播率）*并发率*（标清使用率*带宽+高清使用率+带宽）边缘节点:ServiceTypeStreamTypeRateBandwidth(Kbps)CHNQTY.BW.Req(Mbps)RemarkStreamingTypeServiceNameSDLiveTVMulticast3584235822.53.5Mbps*235SDchannels(带宽*频道数)HDLiveTVMulticast9216302709Mbps*30SDchannelsPIPMulticast30026577.6300kbps*265livechannelsMosiacMulticast358413.53.5Mbps*1MosiacchannelNVODMulticast358410353.5Mbps*10NVODchannelsIPTVSDVOD/TSTV/CATCHUP/nPVRUnicast2560NA157535000users*2%concurrentratio*90%SDratio*2.5MbpsHDVOD/TSTV/CATCHUP/nPVRUnicast7168NA49035000users*2%concurrentratio*10%HDratio*7MbpsFCCUnicastNANA340235000*(50%-2%)*5%*(0.9*2.5Mbps+0.1*7Mbps)othersUnicastNANA200ReferencevalueUplinkIPTVVOD&FCCUnicastBW(Mbps)5467fromedgesiteIPTVHMStoIPTVSTB(fromMSVSIPTVsignaling&MGMTotherUnicastBW(Mbps)10050Mbpsforcommunicationwithcentersite,50MbpsforsubscribersPlatformtoTSIPTotalTraffic(Mbps)5567totalIPTVoutputthroughputtrafficnetwork)Downlink(fromTSIPIPTVBTVMulticastBW(Mbps)1092.5fromCentersitetoedgesiteFCC&HMS1092.5=(235SD*3.5Mbps+30HD*9Mbps)networktoEPG/VODMetedata&Mediauploading/otherUnicastBW(Mbps)100fromCentersitetoedgesiteMSVSPlatform)TotalTraffic(Mbps)1192.5totalIPTVinputthroughputtrafficTotalIPTVTrafficBW(Mbps)6759.5totalIPTVthroughputtrafficOTT业务带宽计算中心节点:HLSProfileLiveTVQTYVODCon.usersLiveTVCon.usersReamrkTypeRaito(Kbps)SH/HDsub.RatioSD/HDProfileRatioVQ1(SD)25090%25%401080.01080.0AssumptiontheratioofVODandLiveTVis50%:50%SDVOD/LiveTVConcurrentusersQTY=24000users*10%con.ratio*90%*50%用户数*并发率*标清使用率*比例VQ2(SD)50025%VQ3(SD)70025%VQ4(SD)102425%VQ5(HD)204810%50%5120.0120.0HDVOD/LiveTVConcurrentusersQTY=24000users*10%con.ratio*10%*50%HDOTTshouldprovidelowrateprofileforsupportingOTTHDPIPserviceVQ6(HD)307250%VQ7(HD-PIP)250/TerminalTypeProfileBW.Req.(Mbps)ReamrkTypeProfileQTYConcurrentsub.PerprofileOTTSDVQ1~VQ445401620Concurrentsub.Perprofile=24000users*10%con.sub.*90%ratio/4profiles用户数*并发率*标清使用率/VQ类型SDBWReq.=(24000users*10%con.sub.*90%ratio/4profiles)*3MbpsOTTHDVQ5~VQ72120750Concurrentsub.perprofile=24000users*10%conc.sub.*10%ratio/2profilesHDBWReq.=(24000users*10%con.sub*10%ratio/2profiles)*6.25MbpsUplinkOTTLiveTVHLSUnicastBW(Mbps)453.75fromcentersitetoallOTTHMSof3*edgesiteBW=(3Mbps*40SDchannels+6.25Mbps*5HDchannels)*3(fromMSVSPlatformtoOTTSubscriberUnicastBW(Mbps)2370fromcentersitetoOTTterminalBW=(1620+750)MbpsTSIPOTTsignaling&MGMTotherUnicastBW(Mbps)400100Mbps*3Edgesite,100Mbpsforsubscribersnetwork)OTTUpgradeUnicastBW(Mbps)400200MperoneUpgradeserver,2UPGserverintotal.TotalTraffic(Mbps)3623.75totalOTToutputthroughputtrafficDownlinkfromlegacyTSHeadendtoCentersite(fromTSIPOTTLiveTVHLSUnicastBW(Mbps)302.5BW=(3Mbps*40SDchannels+6.25Mbps*5HDchannels)*2networktoCopiesMSVSPlatform)TotalTraffic(Mbps)302.5totalOTTinputthroughputtrafficTotalOTTtrafficBW(Mbps)3926.25totalOTTthroughputtraffic边缘节点:ProfileLiveTVQTYVOD/LiveTVCon.usersLiveTVCon.usersReamrkTypeRaito(Kbps)SH/HDsub,RatioSD/HDProfileRatioVQ1(SD)25090%25%40540.0540.0AssumptiontheratioofVODandLiveTVis50%:50%SDVOD/LiveTVConcurrentusersQTY=12000users*10%con.VQ2(SD)50025%VQ3(SD)70025%VQ4(SD)102425%ratio*90%*50%VQ5(HD)204810%50%560.060.0HDVOD/LiveTVConcurrentusersQTY=12000users*10%con.ratio*10%*50%HDOTTshouldprovidelowrateprofileforsupportingOTTHDPIPserviceVQ6(HD)307250%VQ7(HD-PIP)250/TerminalTypeProfileBandwidthRequirement(Mbps)ReamrkTypeProfileQTYSubscribersQTYforeachProfileOTTSDVQ1~VQ44270810Concurrentsub.Perprofile=12000users*10%con.sub.*90%ratio/4profilesSDBWReq.=(12000users*10%con.sub.*90%ratio/4profiles)*3MbpsOTTHDVQ5~VQ7260375Concurrentsub.perprofile=12000users*10%conc.sub.*10%ratio/2profilesHDBWReq.=(12000users*10%con.sub.*10%ratio/2profiles)*6.25MbpsUplink(output)OTTSubscriberUnicastBW(Mbps)1185fromedgesitetoallOTTterminalBW=(810+375)MbpsOTTsignaling&MGMTotherUnicastBW(Mbps)10050Mbpsforcommunicationwithcentersite,50Mbpsforsubscribers,TotalTraffic(Mbps)1285totalOTToutputthroughputtrafficdownlink(input)OTTLiveTVHLSUnicastBW(Mbps)151.25fromcentersitetoOTTHMSofedgesiteBW=(3Mbps*40channels+6.25Mbps*5HDchannelsEPG/VODMetedata&Mediauploading/other100fromcentersitetoedgesiteUnicastBW(Mbps)TotalTraffic(Mbps)251.25totalOTTinputthroughputtrafficTotalOTTTrafficBW(Mbps)1536.25totalOTTthroughputtrafficIPTV计算方法HMS带宽计算出流带宽：(SD.Bitrate*SD.ratio+HD.Bitrate*HD.ratio)*SubscriberNum*Unicast.ratio入流带宽：需要录制的直播的带宽+单播、信令、管理一些小流量FCC带宽计算出流带宽：(SD.Bitrate*SD.ratio+HD.Bitrate*HD.ratio)*SubscriberNum*(Online.ratio-Unicast.ratio)*FCC.ratio入流带宽：直播业务频道数(SDLiveTV、HDLiveTV、PIP、Mosiac、NVOD)*对应码率之和MRF带宽计算出流带宽：直播业务频道数（SDLiveTV、HDLiveTV、PIP、Mosiac、NVOD）*对应码率之和入流带宽：直播业务频道数（SDLiveTV、HDLiveTV、PIP、Mosiac、NVOD）*对应码率之和总出流带宽=HMS出流+FCC出流+直播流+信令管理流量（参考值）+机顶盒升级流量（参考值）总入流带宽=直播业务频道数（SDLiveTV、HDLiveTV、PIP、Mosiac、NVOD）*对应码率之和+平台入流带宽（参考值）OTT计算方法OTT业务的直播与点播都为单播形式，都由HMS出流，故需算上HLS带宽。6.1HLS带宽计算出流带宽：SD.Bitrate*SD.ChannelNum+HD.Bitrate*HD.ChannelNum入流带宽：SD.Bitrate*SD.ChannelNum+HD.Bitrate*HD.ChannelNum+直播出流总出流带宽=HMS出流+信令管理流量（参考值）+机顶盒升级流量（参考值）总入流带宽=直播流+平台入流带宽（主要为与第三方部件交互）