1、 International Telecommunication Union ITU-T H.642.1TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (06/2012) SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMSBroadband, triple-play and advanced multimedia services Ubiquitous sensor network applications and Internet of Things Multimedia information acces
2、s triggered by tag-based identification Identification scheme Recommendation ITU-T H.642.1 ITU-T H-SERIES RECOMMENDATIONS AUDIOVISUAL AND MULTIMEDIA SYSTEMS CHARACTERISTICS OF VISUAL TELEPHONE SYSTEMS H.100H.199 INFRASTRUCTURE OF AUDIOVISUAL SERVICES General H.200H.219 Transmission multiplexing and
3、synchronization H.220H.229 Systems aspects H.230H.239 Communication procedures H.240H.259 Coding of moving video H.260H.279 Related systems aspects H.280H.299 Systems and terminal equipment for audiovisual services H.300H.349 Directory services architecture for audiovisual and multimedia services H.
4、350H.359 Quality of service architecture for audiovisual and multimedia services H.360H.369 Supplementary services for multimedia H.450H.499 MOBILITY AND COLLABORATION PROCEDURES Overview of Mobility and Collaboration, definitions, protocols and procedures H.500H.509 Mobility for H-Series multimedia
5、 systems and services H.510H.519 Mobile multimedia collaboration applications and services H.520H.529 Security for mobile multimedia systems and services H.530H.539 Security for mobile multimedia collaboration applications and services H.540H.549 Mobility interworking procedures H.550H.559 Mobile mu
6、ltimedia collaboration inter-working procedures H.560H.569 BROADBAND, TRIPLE-PLAY AND ADVANCED MULTIMEDIA SERVICES Broadband multimedia services over VDSL H.610H.619 Advanced multimedia services and applications H.620H.629 Ubiquitous sensor network applications and Internet of Things H.640H.649IPTV
7、MULTIMEDIA SERVICES AND APPLICATIONS FOR IPTV General aspects H.700H.719 IPTV terminal devices H.720H.729 IPTV middleware H.730H.739 IPTV application event handling H.740H.749 IPTV metadata H.750H.759 IPTV multimedia application frameworks H.760H.769 IPTV service discovery up to consumption H.770H.7
8、79 Digital Signage H.780H.789 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T H.642.1 (06/2012) i Recommendation ITU-T H.642.1 Multimedia information access triggered by tag-based identification Identification scheme Summary Recommendation ITU-T H.642.1 defines an
9、identification scheme for multimedia information access triggered by tag-based identification. Multimedia information associated with such an identifier can be retrieved using a resolution process. This Recommendation provides a framework for accommodating the legacy existing identification schemes
10、together with the new identification scheme defined here using a pair of object identifiers for the identification scheme and identifier itself. History Edition Recommendation Approval Study Group 1.0 ITU-T H.642.1 2012-06-29 16 Keywords Identification scheme, identifier. ii Rec. ITU-T H.642.1 (06/2
11、012) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for
12、 studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study
13、 groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis w
14、ith ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory pro
15、visions (to ensure, e.g., interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of
16、 such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no pos
17、ition concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, prot
18、ected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2013 All rights reserved. No part
19、of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T H.642.1 (06/2012) iii Table of Contents Page 1 Scope 1 2 References. 1 3 Definitions 1 3.1 Terms defined elsewhere 1 3.2 Terms defined in this Recommendation . 2 4 Abbreviations an
20、d acronyms 2 5 Conventions 3 6 Concept of an identification scheme for multimedia information access triggered by tag-based identification 3 6.1 Overview 3 6.2 Uniqueness of ID value 3 7 ITU-T H.642 identification scheme for multimedia information access triggered by tag-based identification 4 7.1 S
21、tructure of an ITU-T H.642 identification scheme . 4 7.2 First level code . 5 7.3 Second level code (2LC) 5 7.4 Class . 5 7.5 Third level code (3LC) . 5 7.6 Fourth level code (4LC) . 5 Appendix I Survey on identification schemes 6 I.1 Introduction 6 I.2 Need for a generic identification scheme for m
22、ultimedia information access triggered by tag-based identification . 6 I.3 Requirements on the identifier for multimedia information access triggered by tag-based identification 6 I.4 Survey on existing identification schemes . 7 Bibliography. 11 iv Rec. ITU-T H.642.1 (06/2012) Introduction The iden
23、tification scheme defined in this Recommendation provides a new method for accessing multimedia content without typing its address on a keyboard or inputting the name of objects and/or places of relevant information. This is a major communication service that uses an identifier in data carriers such
24、 as radio frequency identifications (RFIDs), smart cards and barcodes. The purpose of this Recommendation is to specify a new identification scheme to be used in applications and services where the existing identification schemes and their combinations cannot be used (see Appendix I for some example
25、s). From the standpoint of compatibility and reusability of existing identifier schemes, this Recommendation provides a framework to support multiple identification schemes. In this framework, it is possible that multiple existing identification schemes together with the proposed new identification
26、scheme can be used for identification where appropriate. Each identification scheme is identified by an object identifier (OID) according to ITU-T X.660. Clause 6 introduces the concept of multiple identification schemes for multimedia information access triggered by tag-based identification. Clause
27、 7 specifies a new generic identification scheme for multimedia information access triggered by tag-based identification. Appendix I provides additional information which explains why a new generic identification scheme is needed. Rec. ITU-T H.642.1 (06/2012) 1 Recommendation ITU-T H.642.1 Multimedi
28、a information access triggered by tag-based identification Identification scheme 1 Scope This Recommendation defines an identification scheme for multimedia information access triggered by tag-based identification. This identification scheme is mainly used in the multimedia information system archit
29、ecture defined in ITU-T H.621. It also satisfies the requirements defined in ITU-T F.771. This Recommendation does not define encoding rules to store the identifier value into data carriers such as barcode tags and RFID tags. When stored in a data carrier, the OID and identifier value shall be encod
30、ed according to the relevant international standards if such standards exist for the type of data carrier. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publ
31、ication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of t
32、he currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T F.771 Recommendation ITU-T F.771 (2008), Service description and requirements for multimedia info
33、rmation access triggered by tag-based identification. ITU-T H.621 Recommendation ITU-T H.621 (2008), Architecture of a system for multimedia information access triggered by tag-based identification. ITU-T H.642.2 Recommendation ITU-T H.642.2 (2012), Multimedia information access triggered by tag-bas
34、ed identification Registration procedures for identifiers. ITU-T X.660 Recommendation ITU-T X.660 (2011) | ISO/IEC 9834-1:2012, Information technology Procedures for the operation of object identifier registration authorities: General procedures and top arcs of the international object identifier tr
35、ee. ITU-T X.668 Recommendation ITU-T X.668 (2008) | ISO/IEC 9834-9:2008, Information technology Open Systems Interconnection Procedures for the operation of OSI Registration Authorities: Registration of object identifier arcs for applications and services using tag-based identification. 3 Definition
36、s 3.1 Terms defined elsewhere This Recommendation uses the following terms defined elsewhere: 3.1.1 ID resolution ITU-T F.771: A function to resolve an identifier into associated information. 2 Rec. ITU-T H.642.1 (06/2012) 3.1.2 multimedia information ITU-T F.771: Digital information that uses multi
37、ple forms of information content and information processing, such as text, pictures, audio, video, three-dimensional panoramic pictures and digital maps, which informs or entertains users. 3.1.3 object identifier b-ITU-T X.680: A globally unique value associated with an object to unambiguously ident
38、ify it. 3.2 Terms defined in this Recommendation This Recommendation defines the following terms: 3.2.1 class: Part of an identifier that defines the layout and interpretation of the following bit string inside the identifier, especially the length of the third level code (3LC) and fourth level code
39、 (4LC). 3.2.2 first level code (1LC): Part of the identifier that represents the identifier sub-blocks. 3.2.3 fourth level code (4LC): Part of the identifier which serializes individual multimedia information and services. 3.2.4 ITU-T H.642 identification scheme: Name given to the identification sch
40、eme defined in this Recommendation. 3.2.5 identification scheme: Definition and description of the structure of identifiers. 3.2.6 identifier value: String of characters that represents the value of the identifier. 3.2.7 second level code (2LC): Part of the identifier assigned to ITU Member States.
41、3.2.8 third level code (3LC): Part of the identifier assigned to an RA that handles the allocation of the subspace to other organizations. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: 1LC First Level Code 2LC Second Level Code 3LC Third Level Code 4
42、LC Fourth Level Code EPC Electronic Product Code GIAI Global Individual Asset Identifier GRAI Global Returnable Asset Identifier ID Identifier IP Internet Protocol ISBN International Standard Book Number ISSN International Standard Serial Number OID Object Identifier RA Registration Authority RFID R
43、adio Frequency Identification SGLN Serialized Global Location Number SGTIN Serialized Global Trade Item Number Rec. ITU-T H.642.1 (06/2012) 3 SSCC Serial Shipping Container Code URL Uniform Resource Locator URN Uniform Resource Name UUID Universally Unique Identifier 5 Conventions In this Recommenda
44、tion, xx2denotes that number xx is expressed as a binary (base-2) number. 6 Concept of an identification scheme for multimedia information access triggered by tag-based identification 6.1 Overview An identification scheme in this Recommendation is designed to discriminate multimedia information and
45、services associated with “objects“ or “places“ of the real world in the architecture defined by ITU-T H.621. A data carrier such as an RFID tag which triggers access can be placed anywhere and its whereabouts is out of the scope of this Recommendation. 6.2 Uniqueness of ID value Figure 1 gives an ov
46、erview of the general approach to accommodate multiple identification schemes. Many different identification schemes can be used for multimedia information access triggered by tag-based identification. Each identification scheme should be identified by an object identifier (OID) under the arc joint-
47、iso-itu-t(2) tag-based(27) as specified in ITU-T X.668. For example, in Figure 1, the top row indicates that Identification scheme 1 is identified by OID arch joint-iso-itu-t(2) tag-based(27) i1. Identifier schemes which are widely used and already have an OID allocated to them (not under arc joint-
48、iso-itu-t(2) tag-based (27) can continue to use that OID. In Figure 1, “Existing identification scheme 1“, that has an OID value not under arc joint-iso-itu-t(2) tag-based(27) is identified by OID x1y1z1. For a given identifier scheme (identified by an OID), the uniqueness of identifier values is re
49、quired to be managed by the organization which is allocating those values. That is, the uniqueness of identifier values should be managed by the registration authority (RA) for that identifier scheme with the cooperation of those who store identifiers into data carriers. OID:2.27.i1+ Identification scheme 1 OID:2.27.im+ Identification scheme m OID:x1.y1.z1+ Existing Identification scheme 1 OID:xN.yN.zN+ Existing Identification scheme N Figure 1 Multiple identification schemes 4 Rec. ITU-T
