Internet Engineering Task Force (IETF) P. Higgs
Request for Comments: 7528 J. Piesing
Category: Informational HbbTV Association
ISSN: 2070-1721 April 2015
Internet Engineering Task Force (IETF) P. Higgs
Request for Comments: 7528 J. Piesing
Category: Informational HbbTV Association
ISSN: 2070-1721 April 2015
A Uniform Resource Name (URN) Namespace for the Hybrid Broadcast Broadband TV (HbbTV) Association
混合广播宽带电视（HbbTV）关联的统一资源名称（URN）命名空间
Abstract
摘要
This document describes a Uniform Resource Name (URN) namespace for the Hybrid Broadcast Broadband TV (HbbTV) Association for naming persistent resources defined within HbbTV specifications. Example resources include technical documents and specifications, Extensible Markup Language (XML) Schemas, classification schemes, XML Document Type Definitions (DTDs), namespaces, style sheets, media assets, and other types of resources produced or managed by HbbTV.
本文档描述了混合广播宽带电视（HbbTV）关联的统一资源名称（URN）命名空间，用于命名HbbTV规范中定义的持久资源。示例资源包括技术文档和规范、可扩展标记语言（XML）模式、分类方案、XML文档类型定义（DTD）、名称空间、样式表、媒体资产以及HbbTV生成或管理的其他类型的资源。
Status of This Memo
关于下段备忘
This document is not an Internet Standards Track specification; it is published for informational purposes.
本文件不是互联网标准跟踪规范；它是为了提供信息而发布的。
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 5741.
本文件是互联网工程任务组（IETF）的产品。它代表了IETF社区的共识。它已经接受了公众审查，并已被互联网工程指导小组（IESG）批准出版。并非IESG批准的所有文件都适用于任何级别的互联网标准；见RFC 5741第2节。
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7528.
有关本文件当前状态、任何勘误表以及如何提供反馈的信息，请访问http://www.rfc-editor.org/info/rfc7528.
Copyright Notice
版权公告
Copyright (c) 2015 IETF Trust and the persons identified as the document authors. All rights reserved.
版权所有（c）2015 IETF信托基金和确定为文件作者的人员。版权所有。
This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License.
本文件受BCP 78和IETF信托有关IETF文件的法律规定的约束(http://trustee.ietf.org/license-info)自本文件出版之日起生效。请仔细阅读这些文件，因为它们描述了您对本文件的权利和限制。从本文件中提取的代码组件必须包括信托法律条款第4.e节中所述的简化BSD许可证文本，并提供简化BSD许可证中所述的无担保。
Table of Contents
目录
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. URN Specification for the HbbTV Namespace Identifier (NID) . 3
3. Examples . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. Namespace Considerations . . . . . . . . . . . . . . . . . . 5
5. Community Considerations . . . . . . . . . . . . . . . . . . 6
6. Security Considerations . . . . . . . . . . . . . . . . . . . 6
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 6
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 7
8.1. Normative References . . . . . . . . . . . . . . . . . . 7
8.2. Informative References . . . . . . . . . . . . . . . . . 7
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 7
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. URN Specification for the HbbTV Namespace Identifier (NID) . 3
3. Examples . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. Namespace Considerations . . . . . . . . . . . . . . . . . . 5
5. Community Considerations . . . . . . . . . . . . . . . . . . 6
6. Security Considerations . . . . . . . . . . . . . . . . . . . 6
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 6
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 7
8.1. Normative References . . . . . . . . . . . . . . . . . . 7
8.2. Informative References . . . . . . . . . . . . . . . . . 7
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 7
HbbTV (Hybrid Broadcast Broadband TV) is a new industry standard providing an open and business-neutral technology platform that seamlessly combines TV services delivered via broadcast with services delivered via broadband and also enables access to Internet-only services for consumers using connected TVs and set-top boxes. The founding members of the HbbTV consortium together with a large group of supporters jointly developed the HbbTV specification to create a global standard for hybrid entertainment services. Version 1.2.1 of this specification was published by ETSI as ETSI TS 102 796 [HbbTV12] in November 2012.
HbbTV（混合广播宽带电视）是一种新的行业标准，提供了一个开放的、业务中立的技术平台，该平台将通过广播提供的电视服务与通过宽带提供的服务无缝地结合在一起，还使消费者能够使用连接的电视和机顶盒访问仅限互联网的服务。HbbTV联盟的创始成员与一大群支持者共同制定了HbbTV规范，以创建混合娱乐服务的全球标准。本规范的1.2.1版由ETSI于2012年11月发布为ETSI TS 102 796[HbbTV12]。
The HbbTV specification is based on existing standards and web technologies including the Open IPTV Forum (OIPF), Consumer Electronics Association (CEA), Digital Video Broadcasting (DVB), and World Wide Web Consortium (W3C). The standard provides the features and functionality required to deliver feature-rich broadcast and Internet services. Utilizing standard Internet technology, it
HbbTV规范基于现有标准和网络技术，包括开放式IPTV论坛（OIPF）、消费电子协会（CEA）、数字视频广播（DVB）和万维网联盟（W3C）。该标准提供了提供功能丰富的广播和互联网服务所需的特性和功能。利用标准的互联网技术
enables rapid application development. It defines minimum requirements simplifying the implementation in devices and leaving room for differentiation; this limits the investment required by consumer electronics manufacturers to build compliant devices. The HbbTV Association is a pan-European initiative aimed at providing an alternative to proprietary technologies and delivering an open platform for broadcasters to deliver value-added on-demand services to the end consumer.
支持快速应用程序开发。它定义了简化设备实现的最低要求，并为差异化留出了空间；这限制了消费类电子产品制造商制造兼容设备所需的投资。HbbTV协会是一项泛欧倡议，旨在提供专有技术的替代方案，并为广播公司提供一个开放平台，以便向终端消费者提供增值点播服务。
HbbTV has a wide range of supporters from across the broadcaster and consumer electronics industries.
HbbTV拥有来自广播公司和消费电子行业的广泛支持者。
HbbTV would like to assign unique, permanent, location-independent names based on URNs for some resources it produces or manages. These URNs will be constructed according to the URN syntax defined in [RFC2141]. This namespace specification is for a formal namespace to be registered according to the procedures set forth in [RFC3406].
HbbTV希望基于URN为其生产或管理的某些资源分配唯一、永久、位置独立的名称。这些URN将根据[RFC2141]中定义的URN语法构造。本名称空间规范适用于根据[RFC3406]中规定的程序注册的正式名称空间。
This section provides the information required to register a formal namespace according to the registration procedure defined in [RFC3406]. The URNs conform to the syntax defined in [RFC2141].
本节提供了根据[RFC3406]中定义的注册过程注册正式名称空间所需的信息。URN符合[RFC2141]中定义的语法。
Namespace ID:
命名空间ID:
"hbbtv"
“hbbtv”
Registration Information:
注册资料：
Version: 1
版本:1
Date: 2014-08-07
日期：2014-08-07
Declared registrant of the namespace:
已声明命名空间的注册人：
Name: Mr. Peter Macavock
姓名：Peter Macavock先生
Title: Administrator
职务：管理员
Affiliation: HbbTV Association
附属机构：HbbTV协会
Address: L'Ancienne-Route 17A, CH-1218 Grand-Saconnex, Switzerland
地址：瑞士大萨康奈克斯CH-1218 L'Ancienne-17A路
Phone: + 41 22 717 27 14
电话：+41227172714
Email: info@hbbtv.org
Email: info@hbbtv.org
Declaration of structure:
结构声明：
URNs assigned by HbbTV will have the following structure based on the organizational structure of the resources specified in the HbbTV specifications:
根据HbbTV规范中规定的资源组织结构，HbbTV分配的URN将具有以下结构：
urn:hbbtv:<NSS>
urn:hbbtv:<NSS>
where the syntax of "<NSS>" is specified in Section 2.2 of the URN Syntax requirements [RFC2141].
其中，URN语法要求[RFC2141]第2.2节规定了“<NSS>”的语法。
The individual URNs will be assigned by HbbTV through the process of development of the HbbTV specifications.
HbbTV将通过制定HbbTV规范的过程分配各个URN。
Relevant ancillary documentation:
相关辅助文件：
None.
没有一个
Identifier uniqueness considerations:
标识符唯一性注意事项：
HbbTV will establish unique identifiers as appropriate and will ensure that an assigned string is never reassigned.
HbbTV将酌情建立唯一标识符，并确保分配的字符串不会被重新分配。
Identifier persistence considerations:
标识符持久性注意事项：
HbbTV is committed to maintaining the accessibility and persistence of all resources that are officially assigned URNs by the organization. The registration tables and information will be published and maintained by HbbTV on its web site.
HbbTV致力于维护组织正式分配给URN的所有资源的可访问性和持久性。登记表和信息将由HbbTV在其网站上公布和维护。
Process of identifier assignment:
标识符分配过程：
The assignment of identifiers is fully controlled and managed by HbbTV.
标识的分配完全由HbbTV控制和管理。
Process of identifier resolution:
标识符解析过程：
Not applicable; the "hbbtv" namespace is not listed with a Resolution Discovery System.
不适用；解析发现系统未列出“hbbtv”命名空间。
Rules for Lexical Equivalence:
词汇对等规则：
The "<NSS>" is case-insensitive.
“<NSS>”不区分大小写。
Conformance with URN Syntax:
符合URN语法：
No special considerations.
没有特别考虑。
Validation mechanism:
验证机制：
None specified. URN assignment will be managed completely and published by HbbTV.
没有具体说明。URN分配将由HbbTV完全管理和发布。
Scope:
范围：
Global
全球的
The following example of schemas and classification schemes is taken from the current HbbTV specification [HbbTV12].
下面的模式和分类方案示例取自当前的HbbTV规范[HbbTV12]。
urn:hbbtv:dash:profile:isoff-live:2012
urn:hbbtv:dash:profile:isoff-live:2012
The following examples of schemas and classification schemes are under consideration for inclusion in a future version of the HbbTV specification currently under development.
以下模式和分类方案示例正在考虑纳入目前正在开发的HbbTV规范的未来版本中。
urn:hbbtv:sync:timeline:ebu-tt-d
urn:hbbtv:sync:timeline:ebu-tt-d
urn:hbbtv:config:oitf:oitfCapabilities:2014-1
urn:hbbtv:config:oitf:oitfCapabilities:2014-1
A unique formal namespace is required by HbbTV in order to specify how the various existing standards can be linked in order to create a true end-to-end ecosystem for standards-based IPTV deployments and to provide the necessary system-wide resources.
HbbTV需要一个独特的正式名称空间，以指定各种现有标准的链接方式，从而为基于标准的IPTV部署创建真正的端到端生态系统，并提供必要的全系统资源。
URN assignment procedures:
URN分配程序：
The individual URNs shall be assigned through the process of development of HbbTV specifications by the Hybrid Broadcast Broadband TV Association. The latest information about HbbTV-defined specifications can always be found at the owner's website at
各URN应通过混合广播宽带电视协会制定HbbTV规范的过程进行分配。有关HbbTV定义规范的最新信息，请访问所有者网站：
<https://hbbtv.org/pages/about_hbbtv/specification.php>
<https://hbbtv.org/pages/about_hbbtv/specification.php>
URN resolution/delegation:
决议/授权：
The resolution and delegation shall be determined through the process of development of specifications by the HbbTV Association.
决议和授权应通过HbbTV协会制定规范的过程确定。
Since the implementations envisaged cover a wide range of devices with quite different access methods and capabilities, no single resolution or delegation mechanism can be referenced in this document.
由于设想的实施涵盖了具有完全不同的访问方法和能力的广泛设备，因此本文档中不能引用任何单一的解决方案或委托机制。
Type of resources to be identified:
要确定的资源类型：
Types of resources to be identified include XML schema definition files, classification schemes, and identification systems defined and published by HbbTV. These resources being identified constitute a metadata system to describe digital multimedia broadcast services or content conveyed as part of such services.
要识别的资源类型包括HbbTV定义和发布的XML模式定义文件、分类方案和识别系统。这些被识别的资源构成元数据系统，用于描述数字多媒体广播服务或作为此类服务的一部分传输的内容。
The latest HbbTV-defined specifications can always be found at
HbbTV定义的最新规范可在以下网址找到：
<https://hbbtv.org/pages/about_hbbtv/specification.php>
<https://hbbtv.org/pages/about_hbbtv/specification.php>
URNs defined by HbbTV will be used by implementers of hybrid broadcast/broadband systems, services, products, and applications based on the HbbTV specification. They are an essential component of the open ecosystem that is being facilitated by HbbTV.
HbbTV定义的URN将由基于HbbTV规范的混合广播/宽带系统、服务、产品和应用的实施者使用。它们是HbbTV促进的开放生态系统的重要组成部分。
HbbTV specifications are developed through a consensus-based process by member organizations representing most aspects of the digital television ecosystem. A full list of HbbTV members can be found at
HbbTV规范由代表数字电视生态系统大多数方面的成员组织通过基于共识的过程制定。HbbTV成员的完整列表可在
<http://hbbtv.org/pages/hbbtv_association/members.php>
<http://hbbtv.org/pages/hbbtv_association/members.php>
There are no additional security considerations other than those normally associated with the use and resolution of URNs in general, which are described in [RFC1737], [RFC2141], and [RFC3406].
除了[RFC1737]、[RFC2141]和[RFC3406]中描述的通常与URN的使用和解析相关的安全注意事项外，没有其他安全注意事项。
This document registers a namespace for URNs. HbbTV may assign special meaning to certain of the characters of the Namespace Specific String (NSS) in its specifications. Any security consideration resulting from such assignment is outside the scope of this document.
此文档为URN注册一个命名空间。HbbTV可在其规范中为特定于名称空间的字符串（NSS）的某些字符赋予特殊含义。此类转让产生的任何安全考虑不在本文件范围内。
This document defines a URN NID registration of "hbbtv". IANA has included it in the "Uniform Resource Names (URN) Namespaces" registry.
本文件定义了“hbbtv”的URN NID注册。IANA已将其包含在“统一资源名称（URN）命名空间”注册表中。
[RFC1737] Sollins, K. and L. Masinter, "Functional Requirements for Uniform Resource Names", RFC 1737, December 1994, <http://www.rfc-editor.org/info/rfc1737>.
[RFC1737]Sollins，K.和L.Masinter，“统一资源名称的功能要求”，RFC 1737，1994年12月<http://www.rfc-editor.org/info/rfc1737>.
[RFC2141] Moats, R., "URN Syntax", RFC 2141, May 1997, <http://www.rfc-editor.org/info/rfc2141>.
[RFC2141]护城河，R.，“瓮语法”，RFC 21411997年5月<http://www.rfc-editor.org/info/rfc2141>.
[RFC3406] Daigle, L., van Gulik, D., Iannella, R., and P. Faltstrom, "Uniform Resource Names (URN) Namespace Definition Mechanisms", BCP 66, RFC 3406, October 2002, <http://www.rfc-editor.org/info/rfc3406>.
[RFC3406]Daigle，L.，van Gulik，D.，Iannella，R.，和P.Faltstrom，“统一资源名称（URN）命名空间定义机制”，BCP 66，RFC 3406，2002年10月<http://www.rfc-editor.org/info/rfc3406>.
[HbbTV12] ETSI, "Hybrid Broadcast Broadband TV", ETSI TS 102 796 v1.2.1, November 2012.
[HbbTV12]ETSI，“混合广播宽带电视”，ETSI TS 102 796 v1.2.12012年11月。
Authors' Addresses
作者地址
Paul Higgs HbbTV Association c/o Ericsson Inc, 6 Concourse Parkway, suite 400 Atlanta, GA 30328 United States
保罗·希格斯HbbTV协会转交爱立信公司，地址：美国佐治亚州亚特兰大市大道6号，400室，邮编：30328
Phone: +1-650-580-1731
EMail: paul.higgs@ericsson.com
Phone: +1-650-580-1731
EMail: paul.higgs@ericsson.com
Jonathan Piesing HbbTV Association c/o TP Vision Belgium - Innovation Site Europe, Technologiepark-Zwijnaarde 19, 9052 Gent Belgium
Jonathan Piesing HbbTV协会c/o TP Vision比利时-创新网站欧洲，比利时Zwijnaarde 19，9052
Phone: +32 484 430 060
EMail: jon.piesing@tpvision.com
Phone: +32 484 430 060
EMail: jon.piesing@tpvision.com