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1、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2M x 50 = 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2M x 5
2、0 = 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：2M 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容量并发率：HMS性能基础带宽计算Bit
3、 Rate（kbps）Video Bit RateAudio Bit RateFormatLiveTVVODAudio OnlyN/A64H.264Adaptive Bit Rate 1（400*224）21415064H.264Adaptive Bit Rate 2（400*224）46440064H.264Adaptive Bit Rate 3（640*360）66460064H.264Adaptive Bit Rate 4（640*360）13281200128H.264Adaptive Bit Rate 5（960*540）19281800128H.264HLS SD Bit Rate
4、 = （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2.1 Dimension for IPTV ServicesCommon assumptionsItemValueFormatRatioAverage Bit rate of SD content (Live TV)3.5 MbpsH.26490%Average Bit rate of SD content (VOD)2.5 MbpsH.264Average Bit rate of HD content (Live TV)9 MbpsH.26410%Average B
5、it rate of HD content (VOD)7 MbpsH.264Average bit rate of Radio channels384 KbpsH.264N/AAverage bit rate of PIP Stream300 KbpsH.264N/ASD concurrent unicast Ratio（并发率）HD concurrent unicast Ratio90%10%Average Bit rate of HD content (Live TV)ItemIn scopeDescriptionIPTV Platform Capacity DimensionsCapab
6、ility（支撑用户数目）175000Platform Hardware Capability for Total Terminals.Network Structure2 LevelDistributed structureCentral node qty.1Central Node Capability70000Platform Capability for Central Node Total TerminalsEdge node qty.3Number of Edge SidesEdge Node Capability35000Platform Capability for each
7、Edge Node total terminalsUser Model Dimensions（用户行为习惯的模型）Online Ratio50%Ratio of Online Terminals =online Terminals/Total Terminals.Ratio of VOD/TSTV/Catch-Up TV/nPVR concurrent Unicast Terminals（单播）2%Ratio of Unicast Terminals =Unicast terminals/Total Terminals.Ratio of FCC concurrent unicast Termi
8、nals5%Ratio of FCC Terminals =FCC Terminals /Live TV Terminals (Online Ratio - Unicast Ratio).Content Dimensions (SD)：频道信息SD Live Channel Qty.235SD Live Channel QuantityPIP channel of SD Live TV channel Qty235Picture In Picture Channel QuantitySD Catch-Up TV Channel Qty.235SD Catch-Up TV Channel Qua
9、ntitySD Catch-Up TV Total Hours(H)2480SD Catch-Up TV Channel Recording Hours, (15 channels for 3*24 hours, rest 1400 hours remaining channels in last 14 days for rest channels), 1400 hours can be used by TS to upload Catch Up Content from 3rd party or selected recording for some channels.SD TSTV Cha
10、nnel Qty.15SD TSTV Channel QuantitySD TSTV Hours(H)1SD TSTV Channel Recording HoursSD nPVR Channel Qty35SD nPVR channel QuantitySD nPVR Recording Hour10 days*24 HoursSD nPVR channel recording hours.SD VOD Content Hours(H)2000SD VOD Content HoursNVOD Channel Qty.(SD)10SD NVOD Channel QuantityMosaic C
11、hannel Qty.(SD)1System SD Mosaic Channel QuantityRadio Channel10Radio Channel QuantityContent Model Dimensions (HD)HD Live Channel Qty.30HD Live Channel QuantityPIP channel of HD Live TV channel Qty30Picture In Picture Channel QuantityHD Catch-Up TV Channel Qty.30HD Catch-Up TV Channel QuantityHD Ca
12、tch-Up TV Total Hours(H)640HD Catch-Up TV Channel Recording Hours (5 channels for 3*24 Hours, rest 280 hours for rest remaining channels in last 14 days), 280 hours can be used by TS to upload Catch Up Content from 3rd party or selected recording for some channels.HD TSTV Channel Qty.5HD TSTV Channe
13、l QuantityHD TSTV Hours(H)1HD TSTV Channel Recording HoursHD VOD Content Hours(H)1000HD VOD Content HoursHD nPVR Channel Quantity5HD nPVR channel quantityHD nPVR recording Hours10 days*24 HoursHD nPVR channel recording hoursNVOD Channel quantity (HD)0NVOD channel quantityNPVR Calculate Mode for IPTV
14、 (Catch-Up TV Rate)10 days * 24 HoursSocial TVUser Feeds Per Day10Average feeds(activities) per day per userRefreshing Period of Feeds Count60Users average refreshing time for feeds count. User can get the unread message number before refreshing. The shorter this period is, the higher system perform
15、ance required. Huawei assume the Refreshing Period of Feeds Count is 60 seconds by default.2.2 Dimension for OTT ServicesCommon assumptionSubs. Ratio for Terminal TypesOTT STBPCiPADiPhoneAndroidPADAndroidPhoneRatio20%20%20%15%5%20%SD concurrent unicst RatioHD concurrent unicast Ratio90%10%FormatSubs
16、criber RatioRate (Kbps)OTT SD HTTP Streaming dynamic rateHLS25%250 KbpsHLS25%500 KbpsHLS25%700 KbpsHLS25%1 MbpsOTT HD HTTP Streaming dynamic rateHLS50%2 MbpsHLS50%3 MbpsPIP StreamHLSN/A250 Kbps (300 Kbps for OTT HD)Dimensions for OTTItemIn scopeDescriptionOTT Platform Capacity DimensionsCapability60
17、000Platform Hardware Capability for Total Terminals. Network Structure2Level of Distribute network Structure.Central node qty.1Central Node Capability24000Platform Capability for Central Node Total TerminalsEdge nodes qty.3Edge node quantityEdge Node Capability12000Platform Capability for Edge Node
18、Total TerminalsUser Trafiic Model DimensionsOnline Ratio30%Ratio of Online Terminals=online Terminals /Total Terminals.Concurrent Ratio10%Ratio of concurrent Terminals=concurrent Terminals/Total Terminals.Content Model Dimensions(SD)SD Live Channel Qty.40Live Channel QuantitySD Catch-Up TV Channel Q
19、ty.40Catch-Up TV Channel QuantitySD Catch-Up TV Total Hours1140Catch-Up TV Channel Recording Hours (10 channels for 3*24 hours, rest 420 hours for rest remaining channels in last 14 days) 420 hours can be used by TS to upload Catch Up Content from 3rd party (as VOD) or selected recording for some ch
20、annels.SD TSTV Channel Qty.10TSTV Channel QuantitySD TSTV Hours1TSTV Channel Recording HoursSD VOD Content Hours1000VOD Content HoursContent Model Dimensions(SD)nPVR Channel Quantity25nPVR channel quantity.nPVR channel recording hours10 Days*24 HoursnPVR channel recording hoursContent Model Dimensio
21、ns (HD)HD Live Channel Qty.5HD Live Channel QuantityHD Catch-Up TV Channel Qty.5HD Catch-Up TV Channel QuantityHD Catch-Up TV Total Hours(H)444HD Catch-Up TV Channel Recording Hours, (5 channels for 3*24 Hours, rest 84 hours for rest remaining shows in last 14 days) 84 hours can be used by TS to upl
22、oad Catch Up Content from 3rd party (as VOD) or selected recording for some channels.HD TSTV Channel Qty.5HD TSTV Channel QuantityHD TSTV Hours(H)1HD TSTV Channel Recording HoursHD VOD Content Hours(H)1000HD VOD Content HoursnPVR Channel Quantity5nPVR channel quantitynPVR Channel recording duration1
23、0 days * 24 HoursnPVR channel recording durationSocial TVUser Feeds Per Day10Average feeds(activities) per day per userRefreshing Period of Feeds Count60Users average refreshing time for feeds count. User can get the unread message number before refreshing. The shorter this period is, the higher sys
24、tem performance required. Huawei assume the Refreshing Period of Feeds Count is 60 seconds by default.Refreshing Period of Feeds120Users average refreshing time for feeds. Huawei assume the Refreshing Period of Feeds is 120 seconds by default.3 IPTV业务带宽计算l 中心节点：Service TypeStream TypeRate BW(Kbps)CH
25、NQTY.BW.Req(Mbps)RemarkStreaming TypeService NameIPTVSD Live TVMulticast3584235822.53.5Mbps*235 SD channelsHD Live TVMulticast9216302709Mbps*30SD channelsPIPMulticast30026577.6300kbps*265 live channelsMosiacMulticast358413.53.5Mbps*1Mosiac channelNVODMulticast358410353.5Mbps*10NVOD channelsSD VOD/TS
26、TV/CATCHUP/nPVRUnicast2560NA 3150 70000 users*2% concurrent ratio*90% SD ratio*2.5Mbps*025+70000 users*2% concurrent ratio*90% SD ratio*3.5Mbps*0.75用户数*并发率*标清的使用率*标清带宽HD VOD/TSTV/CATCHUP/nPVRUnicast7168NA 980 70000 users*2% concurrent ratio*10% HD ratio*7MbpsFCCUnicastNA NA 680470000*(50%-2%)*5%*(0.
27、9*3.5Mbps+0.1*9Mbps) others (signalling&STB Upgrade&Mgmt etc.)UnicastNA NA 1000Reference valueUplink (from MSVS Platform to TS IGW) IPTV BTV Multicast BW(Mbps)1208.6BW=(822.5+270+77.6+3.5+35)MbpsIPTV VOD&FCC Unicast BW(Mbps)10934BW=(3150+980+6804)MbpsIPTV signaling&MGMT other Unicast BW(Mbps)400100M
28、bps*3 Edge site, 100Mbps for subscribers IPTV STB Upgrade Unicast BW(Mbps)400200M per one Upgrade server Total Traffic (Mbps)12942.6total IPTV output throughput trafficDownlink (from TS IGW to MSVS Platform)IPTV BTV Multicast BW(Mbps)1208.6from legacy TS Headend to Center siteEPG/VOD Metedata&Media
29、uploading/other Unicast BW(Mbps)200from legacy TS CMS/BMS/OSS/SP&CP etc. to Center site, including OTT VOD transaction Total Traffic (Mbps)1408.6total IPTV input throughput traffic Total IPTV Traffic BW(Mbps)14351.2total IPTV throughput traffic 假设VOD/TSTV/CATCHUP/nPVR所占用的带宽都是2.5M则SD VOD/TSTV/CATCHUP
30、/nPVR = 70000 users*2% concurrent ratio*90% SD ratio*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 = 70000 users*2% concurrent ratio*90% SD ratio*2.5Mbps*025+70000 users*2% concurrent ratio*90% SD ratio*3.5Mbps*0.75FCC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
31、清使用率*带宽+高清使用率+带宽）l 边缘节点：Service TypeStream TypeRate Bandwidth(Kbps)CHNQTY.BW.Req(Mbps)RemarkStreaming TypeService NameIPTVSD Live TVMulticast3584235822.53.5Mbps*235 SD channels（带宽*频道数）HD Live TVMulticast9216302709Mbps*30SD channelsPIPMulticast30026577.6300kbps*265 live channelsMosiacMulticast358413.
32、53.5Mbps*1Mosiac channelNVODMulticast358410353.5Mbps*10NVOD channelsSD VOD/TSTV/CATCHUP/nPVRUnicast2560NA 157535000 users*2% concurrent ratio*90% SD ratio*2.5MbpsHD VOD/TSTV/CATCHUP/nPVRUnicast7168NA 49035000 users*2% concurrent ratio*10% HD ratio*7MbpsFCCUnicastNA NA 340235000*(50%-2%)*5%*(0.9*2.5M
33、bps+0.1*7Mbps)othersUnicastNA NA 200Reference valueUplink (from MSVS Platform to TS IP network) IPTV VOD&FCC Unicast BW(Mbps)5467from edge site IPTV HMS to IPTV STBIPTV signaling&MGMT other Unicast BW(Mbps)10050Mbps for communication with center site, 50Mbps for subscribersTotal Traffic (Mbps)5567to
34、tal IPTV output throughput trafficDownlink (from TS IP network to MSVS Platform)IPTV BTV Multicast BW(Mbps)1092.5 from Center site to edge site FCC&HMS1092.5=(235SD*3.5Mbps+30HD*9Mbps)EPG/VOD Metedata&Media uploading/other Unicast BW(Mbps)100from Center site to edge siteTotal Traffic (Mbps)1192.5tot
35、al IPTV input throughput traffic Total IPTV Traffic BW(Mbps)6759.5total IPTV throughput traffic 4 OTT业务带宽计算 l 中心节点：HLS ProfileLive TV QTYVOD Con. usersLive TV Con. usersReamrkTypeRaito(Kbps)SH/HD sub. RatioSD/HD Profile RatioVQ1(SD)25090%25%401080.0 1080.0 Assumption the ratio of VOD and Live TV is
36、50%:50%SD VOD/Live TV Concurrent users QTY=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%5120.0 120.0 HD VOD/Live TV Concurrent users QTY=24000users*10%con. ratio*10%*50%HD OTT should provide low rate profile for supporting OTT HD PIP servic
37、eVQ6(HD)307250%VQ7(HD-PIP)250/Terminal TypeProfile BW. Req.(Mbps)ReamrkTypeProfile QTYConcurrent sub. Per profileOTT SDVQ1VQ445401620Concurrent sub. Per profile=24000 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/4 profiles)*3MbpsOTT HDVQ5V
38、Q72120750Concurrent sub. per profile=24000 users*10% conc. sub.*10% ratio/2 profiles HD BW Req.=(24000 users *10% con. sub.*10%ratio/2 profiles)*6.25MbpsUplink (from MSVS Platform to TS IP network)OTT Live TV HLS Unicast BW(Mbps)453.75from center site to all OTT HMS of 3* edge siteBW= (3Mbps*40 SD c
39、hannels+6.25Mbps* 5HD channels)*3OTT Subscriber Unicast BW(Mbps)2370from center site to OTT terminalBW=(1620+750)MbpsOTT signaling&MGMT other Unicast BW(Mbps)400100Mbps*3 Edge site, 100Mbps for subscribers OTT Upgrade Unicast BW(Mbps)400200M per one Upgrade server , 2 UPG server in total.Total Traff
40、ic (Mbps)3623.75total OTT output throughput trafficDownlink (from TS IP network to MSVS Platform)OTT Live TV HLS Unicast BW(Mbps)302.5from legacy TS Headend to Center siteBW=( 3Mbps*40 SD channels+6.25Mbps*5 HD channels)*2 CopiesTotal Traffic (Mbps)302.5total OTT input throughput trafficTotal OTT tr
41、affic BW(Mbps)3926.25total OTT throughput traffic l 边缘节点：ProfileLive TV QTYVOD/Live TV Con.usersLive TV Con.usersReamrkTypeRaito(Kbps)SH/HD sub, RatioSD/HD Profile RatioVQ1(SD)25090%25%40540.0 540.0 Assumption the ratio of VOD and Live TV is 50%:50%SD VOD/Live TV Concurrent users QTY=12000users*10%c
42、on. ratio*90%*50%VQ2(SD)50025%VQ3(SD)70025%VQ4(SD)102425%VQ5(HD)204810%50%560.0 60.0 HD VOD/Live TV Concurrent users QTY=12000users*10%con. ratio*10%*50%HD OTT should provide low rate profile for supporting OTT HD PIP serviceVQ6(HD)307250%VQ7(HD-PIP)250/Terminal TypeProfile Bandwidth Requirement(Mbp
43、s)ReamrkTypeProfile QTYSubscribers QTY for each ProfileOTT SDVQ1VQ44270810Concurrent sub. Per profile=12000 users*10% con. sub.*90% ratio/4 profilesSD BW Req.=(12000 users *10% con. sub.*90%ratio/4 profiles)*3MbpsOTT HDVQ5VQ7260375Concurrent sub. per profile=12000 users*10% conc. sub.*10% ratio/2 pr
44、ofiles HD BW Req.=(12000 users *10% con. sub.*10%ratio/2 profiles)*6.25MbpsUplink(output) OTT Subscriber Unicast BW(Mbps)1185from edge site to all OTT terminalBW=(810+375)MbpsOTT signaling&MGMT other Unicast BW(Mbps)10050Mbps for communication with center site, 50Mbps for subscribers,Total Traffic (Mbps)1285total OTT output throughput trafficdownlink(input)OTT Live TV HLS Unicast BW(Mbps)151.25from center site to OTT HMS of edge siteBW=( 3Mbps*40 channels+6.25Mbps*5 HD channelsEPG/VOD Metedata & Media uploading/other Unicast BW(Mbps)100from
