中华人民共和国广播电影电视行业标准基于时分复用数字信道的宽带

GYGY/T209—2005Technicalspecificationforbroadbandvideoconferencebasedontimedivisionmultiplexdigitalchannel2005-09-062005-10-01GY/T209—2005................................................................................II1................................................................................12......................................................................13..............................................................................24............................................................................25MCU......................................................................66.......................................................................10A....................................................11BA..................................................13CA......................................16D........................................................24EB..................................................25FB............................................30IGY/T209—2005GB/T15845.4-1995ITU-TT.120ITU-TQ.922ISDNMPEG-2ABCDEFIIGY/T209—20051MPEG-22Mbit/s8Mbit/s2GB/T15845.4-2003GB/T16858-1997GB/T17975.1-20001GB/T17975.2-20002GB/T17975.3-20023ITU-TG.703(2001)Physical/electricalcharacteristicsofhierarchicaldigitalinterfacesITU-TG.704(1998)Synchronousframestructuresusedat1544,6312,2048,8448and44736kbit/shierarchicallevelsITU-TG.711(1988)Pulsecodemodulation(PCM)ofvoicefrequenciesITU-TG.722(1988)7kHzaudio-codingwithin64kbit/sITU-TG.728(1992)Codingofspeechat16kbit/susinglow-delaycodeexcitedlinearpredictionITU-TH.221(1999)Framestructurefora64to1920kbit/schannelinaudiovisualteleservicesITU-TH.222.0(2000)Informationtechnology--Genericcodingofmovingpicturesandassociatedaudioinformation:SystemsITU-TH.222.1(1996)MultimediamultiplexandsynchronizationforaudiovisualcommunicationinATMenvironmentsITU-TH.224(2000)ArealtimecontrolprotocolforsimplexapplicationsusingtheH.221LSD/HSD/MLPchannelsITU-TH.230(1999)Frame-synchronouscontrolandindicationsignalsforaudiovisualsystemsITU-TH.239(2003)RolemanagementandadditionalmediachannelsforH.300-seriesterminalsITU-TH.242(1999)Systemforestablishingcommunicationbetweenaudiovisualterminalsusingdigitalchannelsupto2Mbit/s1GY/T209—2005ITU-TH.243(2000)Proceduresforestablishingcommunicationbetweenthreeormoreaudiovisualterminalsusingdigitalchannelsupto1920kbit/sITU-TH.261(1993)Videocodecforaudiovisualservicesatpx64kbit/sITU-TH.263(2005)VideocodingforlowbitratecommunicationITU-TH.281(1994)AfarendcameracontrolprotocolforvideoconferencesusingH.224ITU-TH.310(1998)BroadbandandaudiovisualcommunicationsystemsandterminalsITU-TH.320(2004)Narrow-bandvisualtelephonesystemsandterminalequipmentITU-TQ.922(1992)ISDNdatalinklayerspecificationforframemodebearerservicesITU-TQ.933(2003)SignallingspecificationsforframemodeswitchedandpermanentvirtualconnectioncontrolandstatusmonitoringITU-TT.120(1996)DataprotocolsformultimediaconferencingITU-TT.122(1998)Multipointcommunicationservice-ServicedefinitionITU-TT.124(1998)GenericConferenceControlITU-TT.125(1998)MultipointcommunicationserviceprotocolspecificationITU-TT.126(1997)MultipointstillimageandannotationprotocolITU-TT.127(1995)MultipointbinaryfiletransferprotocolITU-TT.128(1998)Multipointapplicationsharing3ATMC&IIMUXMCUMPEG-2PCRPESPIDSDHSTMTSUNI1/1920kbit/sUNI2/3840kbit/sUNI3/5760kbit/sUNI4/7680kbit/sPHY4MPEG-2MCU4.11()()2GY/T209—2005MCU/MCU//14.2MCUMCU2MCUMCU/MCU/ITU-TT.1203GY/T209—2005//2MCU4.3SDHDDNATMMCUE1E1320E116301920kbit/s01630123,……304.4ABA4.4.1AA2Mbit/s8Mbit/sB2Mbit/sAGB/T17975.1-2000TS4.4.1.1UNI3UNI1301920kbit/sUNI2603840kbit/sUNI3905760kbit/sUNI41207680kbit/s4GY/T209—2005ITU-TT.1201323UNI4.4.1.2164kbit/s4.4.1.3ITU-TT.120ITU-TT.12064kbit/s384kbit/sITU-TT.1204.4.1.4GB/T17975.1-2000TS4.4.1.564kbit/s384kbit/s4.4.1.6ITU-TT.120a)ITU-TT.1204ITU-TT.126/ITU-TT.127/ITU-TT.128ITU-TT.124ITU-TT.122/ITU-TT.125ITU-TQ.933ITU-TQ.922PHY4ITU-TT.120b)ITU-TT.1204.4.2BB2Mbit/s8Mbit/s1-42Mbit/s2Mbit/sBNITU-TH.221GB/T17975.1-2000TS4.4.2.1565GY/T209—200512NN+1282930H-MLPMPEG-2TSH.221512······NN+1282930MPEG-2TS64.4.2.2ITU-TH.221ITU-TH.221TS1ITU-TT.120MLPTS2TSNITU-TT.120H-MLP64kbit/s384kbit/s4.4.2.3GB/T17975.1-2000TS4.4.3GB/T17975.2-20004.4.4GB/T17975.3-20024.4.5GB/T17975.1-20005MCU5.1MCUMCUMCU5.2a)MCUb)c)ITU-TT.120AC,BFd)MCUe)f)g)ITU-TT.120h)i)5.2.16GY/T209—2005AB,1920kbit/s,,a)UNIb)c)d)5.2.2AITU-TT.120ITU-TQ.9227BITU-TH.221ITU-TH.2215.2.3AMCU,ITU-TT.120CBITU-TH.242,MCUITU-TT.124ITU-TX.224ITU-TQ.922PHYITU-TT.122/ITU-TT.125ITU-TQ.933ITU-TT.126/ITU-TT.127/ITU-TT.128ITU-TH.281ITU-TH.224ITU-TQ.922PHYITU-TT.1207A5.2.4,5.2.5GB/T17975.1-20005.2.6ABE5.2.7,,7GY/T209—20055.3ACBITU-TH.221ITU-TH.230ITU-TH.221F5.3.111C&IC&IVCF()VCU()MCC()MCS()MCSMIZ()MCUMMS()LCV()LCD()LCO()AIA/AIM(/)VIA()VIS()5.3.222C&IC&IC/ITIA()CTIN()ITIL()ITID()ITCU()CTIC()ITCI()CTCS()CTII()IIIS()I5.3.338GY/T209—20053C&IC&IC/ICIC()ICCD()CCIR(/)ICCK()CCCA()CDCA()CCIS()ITIF()IDIS()I5.4GB/T16858-19975.5ITU-TT.1205.6CMCU5.6.1MCUMCCMIZ5.6.2MCUMIZ5.6.3MCU,MCUMCU,5.6.4MCUMCU5.6.5MCUMCUC,/MCU,5.6.6MCUMCU,MCUMCUMCUMCUM