IPTV流量带宽计算

1、流量带宽计算如50个H264频道，为2M x 50n+1 的关系。如：某中心节点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， = 100Mbps2）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 下挂 3区域中心，则带宽需要计算 3+1=4 份。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

2、频道，为2M x 50 = 100Mbps3）如果是全网单播，则：中心节点和区域中心节点计算方法与组播中继相同。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2M10000 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：x 50 + 2M x 1850 = 3800Mbps，其中 2M x 50 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。在线率和并发率和哪些部件有关系 在线率：EPG

3、容量 并发率：HMS性能 基础带宽计算Bit Rate （ kbps）VideoAudio BitFormatLiveTVVODBitRateRateAudio OnlyN/A64H.264VXAda ptive Bit Rate 1214（400*224 ）15064H.264VVAda ptive Bit Rate 2464（400*224 ）40064H.264VVAda ptive Bit Rate 3664（640*360 ）60064H.264VVAda ptive Bit Rate 41328（640*360 ）1200128H.264VVAda ptive Bit Rate 5

4、（960*540 ）1800128H.264VV1928)/0.8 = 5.828MHLS SD Bit Rate =(64+214+464+664+1328+1928可以通过以上方式计算出标清或者高清的的带宽2.1 Dime nsion for IPTV ServicesCommon assu mp ti onsItemValueFormatRatioAverage Bit rate of SD conten t (Live TV)3.5 MbpsH.26490%Average Bit rate of SD conten t (VOD)2.5 MbpsH.264Average Bit rat

5、e of HD conten t (Live TV)9 Mb psH.26410%Average Bit rate of HD conten t (VOD)7 Mb psH.264Average bit rate of Radio cha nn els384 KbpsH.264N/AAverage bit rate of PIP Stream300 KbpsH.264N/ASD concurrent uni cast Ratio(并发率)HD con curre nt uni cast Ratio90%10%Average Bit rate of HD conten t (Live TV)It

6、emInscopeDescri pti onIPTV PlatformCap acityDime nsionsCap ability （支撑用户数目）175000Platform Hardware Cap ability for TotalTermi nals.Network Structure2 LevelDistributed structureCen tral node qty.1Ce ntral NodeCap ability70000PlatformCap abilityfor Ce ntral NodeTotal Termi nalsEdge node qty.3Number of

7、 Edge SidesEdge NodeCap ability35000Platform Cap ability for each Edge Node total termi nalsUser ModelDime nsions (用户行On li ne Ratio50%Ratio ofOn li neTermin als=on li neTermi nals/Total Termi nals.为习惯的模型）ContentRatio ofVOD/TSTV/Catch-U p TV/n PVR con curre nt Uni cast Termi nals (单播)2%Ratio of Uni

8、cast Termi nals=Uni casttermi nals/Total Termi nals.Ratio of FCC con curre nt uni castTermi nals5%Ratio of FCC Terminals =FCC Terminals /Live TV Termi nals(On li neRatio -Uni cast Ratio).SD Live Cha nnel Qty.235SD Live Cha nnel Qua ntityPIP cha nn el of SDLive TV channel Qty235Picture In Picture Cha

9、nnel Qua ntitySD Catch-U p TVCha nnel Qty.235SD Catch-U p TV Cha nn el Qua ntitySD Catch-U p TVTotal Hours(H)2480SD Catch-U pTV Cha nnel Recordi ngHours, ( 15 cha nn els for 3*24 hours, rest1400 hours rema ining cha nn els in last 14 days for rest channels), 1400 hours can be used by TS to uploadCat

10、chUpContent from3 rd p artyor selectedrecordi ng for some cha nn els.SD TSTV Cha nnelQty.15SD TSTV Cha nnel Qua ntitySD TSTV Hours(H)1SD TSTV Cha nnel Recordi ng HoursSD nPVR Cha nnelQty35SD n PVR cha nnel Qua ntitySD nPVR Recordi ngHour10 days*2 4 HoursSD nPVR cha nnel record ing hours.SD VOD Co nt

11、entHours(H)2000SD VOD Co ntent HoursNVOD Cha nnelQty.(SD)10SD NVOD Cha nnel Qua ntityMosaic ChannelQty.(SD)1System SD Mosaic Cha nn el Qua ntityRadio Cha nnel10Radio Cha nnel Qua ntityDimensions (SD):频道信息Co ntent ModelDime nsio ns (HD)Social TVHD Live Cha nnelQty.30HD Live Cha nnel Qua ntityPIP cha

12、nn el of HDLive TV channel Qty30Picture In Picture Channel Qua ntityHD Catch-U p TVCha nn el Qty.30HD Catch-U p TV Cha nnel Qua ntityHD Catch-U p TVTotal Hours(H)640HD Catch-U p TV Cha nnelRecordi ngHours (5 channels for 3*24 Hours, rest 280 hours for rest remai ning cha nn els in last 14 days), 280

13、 hours can be used byTS to up load Catch Up Content from 3rdparty or selected recording for some cha nn els.HD TSTV Cha nnelQty.5HD TSTV Cha nnel Qua ntityHD TSTV Hours(H)1HD TSTV Cha nnel Recordi ng HoursHD VOD Co ntentHours(H)1000HD VOD Content HoursHD nPVR Cha nnelQua ntity5HD n PVR chann el qua

14、ntityHD nPVR recordi ngHours10days*24 HoursHD nPVR cha nnel record ing hoursNVOD Cha nnel qua ntity (HD)0NVOD cha nn el qua ntityNPVR CalculateMode for IPTV(Catch-U p TV Rate)10 days * 24 HoursUser Feeds Per Day10Average feeds(activities)per day peruserRefreshi ng Period ofFeeds Count60User ' s

15、average refreshing time for feedscount. User can get the un read message numberbefore refreshing.The shorter this p eriod is, the higher systemp erforma neerequired. Huawei assume the Refreshi ng Period of Feeds Count is60 sec onds by default.2.2 Dime nsion for OTT ServicesCommon assu mp ti onSubs.

16、Ratio for Termi nalTypesRatioOTTSTB20%PC20%iPAD20%iPhon15%An droidPAD5%An droidPh one20%SD con curre nt unicst RatioHD con curre nt uni cast RatioFormatSubscriberRatioRate (Kb ps)OTT SD HTTP Streami ng dyn amic rateHLS25%250 KbpsHLS25%500 KbpsHLS25%700 KbpsHLS25%1 Mb psOTT HD HTTP Streami ng dyn ami

17、c rateHLS50%2 Mb psHLS50%3 Mb psPIP StreamHLSN/A250 Kbps (<300 Kbps for OTTHD)90%10%Dime nsions for OTTItemInscopeDescri pti onOTT Platform Cap acityDime nsionsCap ability60000PlatformHardwareCap abilityTotal Termi nals.forNetworkStructure2Level of Distribute n etwork Structure.Cen tral node qty.

18、1Ce ntral NodeCap ability24000PlatformCap ability for Ce ntral NodeTotal Termi nalsEdge no des qty.3Edge node qua ntityEdge NodeCap ability12000PlatformCa pabilityfor Edge NodeTotal Termi nalsUser Trafiic ModelDime nsionsOn li ne Ratio30%Ratio ofOn li neTermin als=on li neTermi nals /Total Termi nal

19、s.Con curre ntRatio10%Ratioofcon curre ntTermin als=c on curre ntTermi nals/Total Termi nals.Co ntent ModelDime nsio ns(SD)SD Live Cha nnelQty.40Live Channel Quan titySD Catch-U p TVCha nnel Qty.40Catch-U p TV Cha nnel Qua ntitySD Catch-U p TVTotal Hours1140Catch-U pTV Cha nnelRecordi ngHours (10 ch

20、annels for 3*24 hours, rest 420 hours for rest rema ining channelsin last 14 days) 420 hourscan be used by TS to upl oad Catch Up Content from 3rd party (as VOD) or selected recordi ng for some cha nn els.SD TSTVCha nnel Qty.10TSTV Cha nnel Qua ntitySD TSTV Hours1TSTV Cha nnel Recordi ng HoursSD VOD

21、 Co ntentHours1000VOD Content HoursCo ntent ModelDime nsio ns(SD)nPVR Cha nnelQua ntity25nPVR cha nnel qua ntity.nPVR cha nnelrecord ing hours10Days*24HoursnPVR cha nnel recordi ng hoursCo ntent ModelDime nsio ns (HD)HD Live Cha nnelQty.5HD Live Cha nnel Qua ntityHD Catch-U p TVCha nnel Qty.HD Catch

22、-U p TVTotal Hours(H)HD TSTVCha nnel Qty.HD TSTVHours(H)HD VODContentHours(H)n PVR Cha nnelQua ntityn PVR Cha nnelrecord ing durati on444100010 days* 24HoursSocial TVUser Feeds Per10DayRefreshi ng60Period of FeedsCou ntRefreshi ngPeriod of Feeds120HD Catch-U p TV Cha nnel Qua ntityHD Catch-UpTV Chan

23、nel RecordingHours, (5 cha nn els for 3*24 Hours, rest84 hours for rest rema ining shows in last 14 days) 84 hours can be used byTS to upl oad Catch Up Co ntent from3 rd party (as VOD) or selectedrecord ing for some cha nn els.HD TSTV Cha nnel Qua ntityHD TSTV Cha nnel Recordi ng HoursHD VOD Co nten

24、t Hoursn PVR cha nnel qua ntityn PVR cha nnel recordi ng durati onAverage feeds(activities) per day peruserUser ' s average refreshingtime forfeeds count. User can get the un read messagenu mberbeforerefreshi ng.The shorter this period is, the higher system p erforma nee required. Huaweiassume t

25、heRefreshi ngPeriod ofFeeds Count is 60 sec onds by default.User ' s average refreshing time for feeds. Huawei assume the Refreshi ng Period of Feeds is 120 secondsbydefault.3 IPTV业务带宽计算Rate中心节点:Service TypeStreamBWCHNBW.ReqRemarkStream ingService NameType(KbpsQTY.(Mbps)TypeSD Live TVMulticast35

26、84235822.53.5Mb ps*235 SD cha nnelsHD Live TVMulticast9216302709Mb ps*30SD cha nnelsPIPMulticast30026577.6300kb ps*265 live cha nnelsMosiacMulticast35843.53.5Mb ps*1Mosiac cha nnelNVODMulticast358410353.5Mb ps*10NVOD cha nnels70000 users*2% con curre ntSDratio*90% SDratio*2.5Mb ps*025+70000 users*2%

27、IPTVVOD/TSTV/CATCHUP/ nPVRUn icast2560NA3150con curre nt ratio*90% SDHDUn icast7168NA980ratio*3.5Mb ps*0.75用户数*并发率*标清的使用率*标清带宽70000 users*2% con curre ntVOD/TSTV/CATCHUP/ nPVRFCCUn icastNANA6804ratio*10% HD ratio*7Mb ps 70000*(50%-2%)*5%*(0.9*3.5Mb ps+0.1*9Mb ps)Uplink(fromMSVSothers (sig nalli ng&a

28、mp;STBUp grade&Mgmt etc.)IPTV BTV Multicast BW(Mb ps)IPTV VOD&FCC Un icast BW(Mb ps)Un icastNANA10001208.610934Refere nee valueBW=(822.5+270+77.6+3.5+35)MbpBW=(3150+980+6804)Mb psPlatform toTS IGW)IPTV sig nali ng&MGMT other Un icast BW(Mb ps)400100Mb ps*3 Edge site, 100Mb ps forsubscrib

29、ersIPTV STB Up grade Uni cast BW(Mb ps)400200M per one Up grade servertotal IPTV out put through putTotal Traffic (Mb ps)12942.6trafficfrom legacy TS Headend to CenterIPTV BTV Multicast BW(Mb ps)1208.6Dow nii nksite(from TSfrom legacy TSIGW toEPG/VOD Metedata&Media up loadi ng/other Un icast200C

30、MS/BMS/OSS/SP&CP etc. toMSVSBW(Mb ps)Cen ter site, i nclud ing OTT VODPlatform)tran sacti onTotal Traffic (Mb ps)1408.6total IPTV input through put trafficTotal IPTV Traffic BW(Mb ps)14351.2total IPTV through put traffic假设VOD/TSTV/CATCHUP/nPVR所占用的带宽都是 2.5M则SD VOD/TSTV/CATCHU P/nPVR = 70000 users

31、*2% concurrent ratio*90% SD ratio*2.5Mb ps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 =70000 users*2% concurrent ratio*90% SD ratio*2.5Mb ps*025+70000 users*2% concurrent ratio*90% SD ratio*3.5Mb ps*0.75FCC的计算 带宽=70000*(50%-2%)*5%*(0.9*3.5Mb ps+0.1*9Mb ps)用户数目* （在线数在线率-单播率）*并发率* （标清使用率*带宽+高

32、清使用率+带宽）边缘节点:Service TypeRateBW.ReStreamBan dwidtCHNStream ingService NameTypehQTY.qRemarkType(Kb ps)(Mb ps)SD Live TVMulticas t3584235822.53.5Mb ps*235 SD cha nn els(带宽 * 频道数)MulticasHD Live TVt9216302709Mb ps*30SD cha nn elsMulticasPIPt30026577.6300kb ps*265 live cha nn elsMulticasMosiact358413.53

33、.5Mb ps*1Mosiac cha nnelIPTVMulticasNVODt358410353.5Mb ps*10NVOD cha nn elsSDUn icast2560NA157535000 users*2% con curre ntVOD/TSTV/CATCHUP/ nPVRratio*90% SD ratio*2.5Mb psHDUn icast7168NA49035000 users*2% con curre ntVOD/TSTV/CATCHUP/ nPVRratio*10% HD ratio*7Mb ps35000*(50%-2%)*5%*(0.9*2.5Mb psFCCUn

34、 icastNANA3402+0.1*7Mb ps)othersUn icastNANA200Refere nee valueUp linkIPTV VOD&FCC Un icast BW(Mb ps)5467from edge site IPTV HMS to IPTV(fromSTBMSVS50Mb ps for communication withIPTV sig nali ng&MGMT other Un icast BW(Mb ps)100Platformcenter site,50Mb ps for subscribersto TS IPTotal Traffic

35、(Mb ps)5567total IPTV out put through putn etwork)trafficDow nii nkfrom Cen ter site to edge site(from TSIPTV BTV Multicast BW(Mb ps)1092.5FCC&HMSIP1092.5=(235SD*3.5Mb ps+30HD*9Mn etworkbps)to MSVSEPG/VOD Metedata&Media up loadi ng/other Un icast100from Cen ter site to edge sitePlatform)BW(M

36、b ps)Total Traffic (Mb ps)1192.5total IPTV input through put trafficTotal IPTV Traffic BW(Mb ps)6759.5total IPTV through put traffic4 OTT业务带宽计算中心节点:HLS ProfileRaitoSD/HDLiveVODLive TVSH/HDTVCon.Con.ReamrkType(KbpsProfilesub. RatioQTYusersusersRatioVQ1(SD)25025%Assum ption the ratio of VOD and LiveVQ

37、2(SD)50025%TV is 50%:50%VQ3(SD)70025%SD VOD/Live TV Co ncurre nt users90%401080.01080.0QTY=24000users*10%c on.VQ4(SD)102425%ratio*90%*50%用户数*并发率*标清使用率*比例VQ5(HD)204850%VQ6(HD)307210%VQ7250(HD-PIP)50%120.0120.0ProfileBW.Termi nalCon curre ntProfileReq.HD VOD/Live TV Con curre nt usersQTY=24000users*10

38、%c on.ratio*10%*50%HD OTT should p rovide low rate p rofilefor supp orti ng OTT HD PIP serviceReamrkTypeTypesub. PerQTY(Mbps)p rofileOTT SDVQ1VQ4Con curre nt sub. Per p rofile540162024000 users*10% con. sub.*90% ratio/4 profiles用户数*并发率*标清使用率/VQ类型SD BW Req.=(24000 users *10% con. sub*90%ratio/4p rofi

39、les)*3Mb psCon curre nt sub. per p rofile=OTT HDVQ5VQ7212075024000 users*10% cone. sub.*10% ratio/2 p rofilesHD BW Req.=(24000 users *10% con. sub.*10%ratio/2profiles)*6.25Mb psfrom cen ter site to allOTT HMS of 3* edge siteUp li nk(from MSVS Platform to TS IP network)OTT Live TV HLS Un icast BW(Mb

40、ps)453.75BW= (3Mb ps*40 SD cha nn els+6.25Mb ps* 5HDcha nnel s)*3OTT Subscriber Un icast BW(Mb ps)2370from cen ter site to OTT termi nalBW=(1620+750)Mb psOTT sig nali ng&MGMT other Un icastBW(Mb ps)400100Mb ps*3 Edge site, 100Mb ps for subscribersOTT Up grade Un icast BW(Mb ps)400200M per one Up

41、 grade server , 2 UPG server i n total.Total Traffic (Mbps)3623.75total OTT output through put trafficDow nii nkfrom legacy TS Heade nd to Center site(from TS IPOTT Live TV HLS Uni cast BW(Mb ps)302.5BW=( 3Mb ps*40 SD cha nn els+6.25Mb ps*5 HDn etwork tocha nn els)*2 Cop iesMSVSPlatform)Total Traffi

42、c (Mbps)302.5total OTT input through put trafficTotal OTT trafficBW(Mb ps)3926.25total OTT through put traffic边缘节点:ProfileLiveVOD/LiveLive TVReamrkRaitoSD/HDTVTVCon. usersSH/HDType(Kb psProfileQTYCon. userssub, RatioRatioVQ1(SD)25025%Assum pti on the ratio of VODVQ2(SD)50025%and Live TV is 50%:50%VQ

43、3(SD)70090%25%40540.0540.0SD VOD/Live TV Co ncurre nt usersQTY=12000users*10%c on.VQ4(SD)102425%ratio*90%*50%VQ5(HD)204850%VQ6(HD)307210%VQ7(HD-PIP)25050%60.060.0ProfileBan dwidtTermi nalTypeTypeProfileQTYOTT SDVQ1VQ4OTT HDVQ5VQ7SubscribersQTY for eachProfile27060HD VOD/Live TV Con curre nt usersQTY

44、=12000users*10%c on.ratio*10%*50%HD OTT should p rovide low rateprofile for supporting OTT HD PIPserviceRequirement(Mbps)810375ReamrkCon curre nt sub. Per p rofile12000 users*10% con. sub.*90% ratio/4 profilesSD BW Req.=(12000 users *10% con. sub.*90%ratio/4p rofiles)*3Mb psCon curre nt sub. per p rofile=12000 users*10% cone. sub.*10% ratio/2 p rofilesHD BW Req.=(12000 users *10% con. sub.*10%ratio/2p rofiles)*6