ITUTIPTV机顶盒国际标准.docx
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ITUTIPTV机顶盒国际标准.docx
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ITUTIPTV机顶盒国际标准
INTERNATIONALTELECOMMUNICATIONUNION
ITU-T
H.770
TELECOMMUNICATION
STANDARDIZATIONSECTOR
OFITU
(08/2009)
SERIESH:
AUDIOVISUALANDMULTIMEDIASYSTEMS
IPTVmultimediaservicesandapplicationsforIPTV –IPTVservicediscoveryuptoconsumption
MechanismsforservicediscoveryandselectionforIPTVservices
CAUTION!
PREPUBLISHEDRECOMMENDATION
ThisprepublicationisanuneditedversionofarecentlyapprovedRecommendation.It willbereplacedbythepublishedversionafterediting.Therefore,therewillbedifferencesbetweenthisprepublicationandthepublishedversion.
FOREWORD
TheInternationalTelecommunicationUnion(ITU)istheUnitedNationsspecializedagencyinthefieldoftelecommunications,informationandcommunicationtechnologies(ICTs).TheITUTelecommunicationStandardizationSector(ITU-T)isapermanentorganofITU.ITU-Tisresponsibleforstudyingtechnical,operatingandtariffquestionsandissuingRecommendationsonthemwithaviewtostandardizingtelecommunicationsonaworldwidebasis.
TheWorldTelecommunicationStandardizationAssembly(WTSA),whichmeetseveryfouryears,establishesthetopicsforstudybytheITUTstudygroupswhich,inturn,produceRecommendationsonthesetopics.
TheapprovalofITU-TRecommendationsiscoveredbytheprocedurelaiddowninWTSAResolution 1.
InsomeareasofinformationtechnologywhichfallwithinITU-T'spurview,thenecessarystandardsarepreparedonacollaborativebasiswithISOandIEC.
NOTE
InthisRecommendation,theexpression"Administration"isusedforconcisenesstoindicatebothatelecommunicationadministrationandarecognizedoperatingagency.
CompliancewiththisRecommendationisvoluntary.However,theRecommendationmaycontaincertainmandatoryprovisions(toensuree.g.interoperabilityorapplicability)andcompliancewiththeRecommendationisachievedwhenallofthesemandatoryprovisionsaremet.Thewords"shall"orsomeotherobligatorylanguagesuchas"must"andthenegativeequivalentsareusedtoexpressrequirements.TheuseofsuchwordsdoesnotsuggestthatcompliancewiththeRecommendationisrequiredofanyparty.
INTELLECTUALPROPERTYRIGHTS
ITUdrawsattentiontothepossibilitythatthepracticeorimplementationofthisRecommendationmayinvolvetheuseofaclaimedIntellectualPropertyRight.ITUtakesnopositionconcerningtheevidence,validityorapplicabilityofclaimedIntellectualPropertyRights,whetherassertedbyITUmembersorothersoutsideoftheRecommendationdevelopmentprocess.
AsofthedateofapprovalofthisRecommendation,ITU[had/hadnot]receivednoticeofintellectualproperty,protectedbypatents,whichmayberequiredtoimplementthisRecommendation.However,implementersarecautionedthatthismaynotrepresentthelatestinformationandarethereforestronglyurgedtoconsulttheTSBpatentdatabaseathttp:
//www.itu.int/ITU-T/ipr/.
© ITU 2009
Allrightsreserved.Nopartofthispublicationmaybereproduced,byanymeanswhatsoever,withoutthepriorwrittenpermissionofITU.
ITU-TRec.H.770(exH.IPTV-SDC)
MechanismsforservicediscoveryandselectionforIPTVservices
DraftnewITU-TRec.H.770(exH.IPTV-SDC)
MechanismsforservicediscoveryandselectionforIPTVservices
Summary
H.770describesthemechanismsforserviceproviderdiscovery,servicediscoveryandselectionforIPTVservices.ThemechanismsenableIPTVterminaldevicestoprovidetheend-userswitheffectivewaysforconsumingIPTVservices.TheexpectedtypesofIPTVservicesusingservicediscoveryinformationincludelinearTVandvideo-on-demand,etc.
ThisRecommendationidentifiesservicediscoverymetadataelementsandattributesprovidinginformationconcerningserviceprovidersandcontents/services,anditsdeliveryprotocolscoveringbothunicastandmulticasttransportmechanisms.
Keywords
IPTVservices,linearTV,serviceprovider,serviceproviderdiscovery,serviceproviderinformation,servicediscovery,servicediscoveryinformation,metadata,deliveryprotocol
CONTENTS
1Scope2
2References2
3Definitions2
3.1Termsdefinedelsewhere:
2
3.2TermsdefinedinthisRecommendation:
2
4Abbreviationsandacronyms2
5Introduction2
6Serviceproviderdiscoveryprocess2
7Serviceproviderinformation2
7.1Serviceproviderinformation2
7.2Serviceroleinformation2
7.3Encodingofserviceproviderinformation2
8Serviceproviderinformationdeliveryprotocol(s)2
9Servicediscoveryprocess2
10Detailedserviceofferinformation2
10.1LinearTVdiscovery2
10.2Packagediscoveryrecord2
10.3Contentguidediscoveryrecord2
10.4Servicefromotherservicesprovidersrecord2
10.5Otherservicesdiscoveryrecord2
10.6Encodingofdetailedserviceofferinformation2
11Detailedserviceofferinformationdeliveryprotocol2
12Serviceselectionprocess2
AnnexAServicediscoveryprofile2
AppendixIMultipleserviceplatforms2
I.1Introductionofserviceroleinformation2
I.2Multipleserviceplatforms2
I.3Servicemobility2
AppendixIIRequirementsinotherstandardorganizations2
II.1Serviceproviderdiscoveryinformation2
II.2Detailedserviceofferinformation2
AppendixIIITheusageofTSwithservicediscoveryinformation2
III.1StudyontheSItables2
III.2ClassificationofTSwithSI2
III.3Variationoftheusageofservicediscoveryinformation2
AppendixIVAlternativemethodsforentrypointhandling2
Bibliography2
ITU-TRec.H.770(exH.IPTV-SDC)
MechanismsforservicediscoveryandselectionforIPTVservices
1Scope
ITU-TH.770describesthemechanismsforserviceproviderdiscovery,servicediscoveryandselectionforIPTVservices.ThemechanismsenableIPTVterminaldevicestoprovidetheend-userswitheffectivewaystodiscoverandselectIPTVservices.TheexpectedtypesofIPTVservicesusingservicediscoveryinformationincludelinearTVandvideo-on-demand,etc.
ThisRecommendationidentifiesservicediscoverymetadataelementsandattributesprovidinginformationconcerningserviceprovidersandcontents/services,anditsdeliveryprotocolscoveringbothunicastandmulticasttransportmechanisms.
2References
ThefollowingITU-TRecommendationsandotherreferencescontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthisRecommendation.Atthetimeofpublication,theeditionsindicatedwerevalid.AllRecommendationsandotherreferencesaresubjecttorevision;usersofthisRecommendationarethereforeencouragedtoinvestigatethepossibilityofapplyingthemostrecenteditionoftheRecommendationsandotherreferenceslistedbelow.AlistofthecurrentlyvalidITU-TRecommendationsisregularlypublished.ThereferencetoadocumentwithinthisRecommendationdoesnotgiveit,asastand-alonedocument,thestatusofaRecommendation.
[ATIS-0800022]ATISstandardATIS-0800022(2008),IPTVConsumerDomainDeviceConfigurationMetadata
[ETSIEN300468]ETSIEN300468V1.8.1(2007),DigitalVideoBroadcasting(DVB);SpecificationforServiceInformation(SI)inDVBsystems
[ETSITS101154]ETSITS101154V1.8.1(2007),DigitalVideoBroadcasting(DVB);ImplementationguidelinesfortheuseofVideoandAudioCodinginBroadcastingApplicationsbasedonthe(MPEG-2TransportStream)
[ETSITS102034]ETSITS102034V1.3.1(2007),DigitalVideoBroadcasting(DVB);TransportofMPEG2TSBasedDVBServicesoverIPBasedNetworks
[ETSITS102472]ETSITS102472V1.3.1(2009),DigitalVideoBroadcasting(DVB);IPDatacastoverDVB-H:
ContentDeliveryProtocols
[IETFRFC768]IETFRFC768(1980),UserDatagramProtocol(UDP)
[IETFRFC959]IETFRFC959(1985),FileTransferProtocol(FTP)
[IETFRFC2236]IETFRFC2236(1997),InternetGroupManagementProtocol,Version2
[IETFRFC2250]IETFRFC2250(1998),RTPPayloadFormatforMPEG1/MPEG2Video
[IETFRFC2616]IETFRFC2616(1999),HypertextTransferProtocol--HTTP/1.1
[IETFRFC2818]IETFRFC2818(2000),HTTPoverTLS
[IETFRFC3376]IETFRFC3376(2002),InternetGroupManagementProtocol,Version3
[IETFRFC3550]IETFRFC3550(2003),RTP:
ATransportProtocolforReal-TimeApplications
[IETFRFC3810]IETFRFC3810(2004),MulticastListenerDiscoveryVersion2(MLDv2)forIPv6
[ISO/IEC23001]ISO/IEC23001-1(2006),Informationtechnology-MPEGsystemstechnologies-Part1:
BinaryMPEGformatforXML
[ITU-TH.610]ITU-TRecommendationH.610(2007),FullserviceVDSL-Systemarchitectureandcustomerpremisesequipment.
[ITU-TH.701]ITU-TRecommendationH.701(2009),ContentDeliveryErrorRecoveryforIPTVservices
[ITU-TH.721]ITU-TRecommendationH.721(2009),IPTVTerminalDevice,BasicModel
[ITU-TH.750]ITU-TRecommendationH.750(2008),High-levelspecificationofmetadataforIPTVservices
[ITU-TH.222.0]ITU-TRecommendationH.222.0|ISO/IEC13818-1(2007),Informationtechnology–Genericcodingofmovingpicturesandassociatedaudioinformation:
Systems
[ITU-TX.891]ITU-TRecommendationX.891(2005)|ISO/IEC24824-1:
2005,Informationtechnology–GenericapplicationsofASN.1:
Fastinfoset
[ITU-TY.1910]ITU-TRecommendationY.1910(2008),IPTVfunctionalarchitecture
[W3CXML]WorldWideWebConsortium(W3C)RecommendationXML1.1(2004),Extensiblemark-uplanguage(XML)1.0,FifthEdition
3Definitions
Termsdefinedelsewhere:
3.1.1Application[ITU-TY.101]:
Afunctionalimplementationrealizedassoftwarerunninginoneorspreadoverseveralinterplayinghardwareentities.
3.1.2Broadcast[ITU-TM.60]:
One-waytransmissionofTVsignalsfromonepointtotwoormoreotherpoints
3.1.3Content[ITU-TT.174]:
Encodedgenericvalue,mediaornon-mediadata
3.1.4ElectronicContentGuide(ECG)[ITU-TH.721]:
Aservicenavigati
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