TS 26.307
★
Presentation Layer
for 3GPP Services
Use "3GPP‑Page" to get the Word version,
and "ETSI‑search" to get the PDF version
V16.0.0 (PDF)
2020/06 11 p.
V15.0.0
2018/06 11 p.
V14.0.0
2017/03 11 p.
V13.0.0
2015/12 11 p.
- Rapporteur:
- Dr. Bouazizi, Imed
Content for TS 26.307 Word version: 16.0.0
1 Scope Word‑p. 5
3 Definitions and abbreviations Word‑p. 6
6 Service-Specific Aspects
The present document specifies an HTML5 profile as a common presentation layer for 3GPP services.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1] W3C Recommendation 28 October 2014, HTML5: "A vocabulary and associated APIs for HTML and XHTML", http://www.w3.org/TR/html5/.
[2] TS 26.234 "Transparent end-to-end Packet-switched Streaming Service (PSS); Protocols and codecs".
[3] TS 26.346 "Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs".
[4] TS 26.247 "Transparent end-to-end Packet-switched Streaming Service (PSS); Progressive Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH)".
[5] TS 26.140 "Multimedia Messaging Service (MMS); Media formats and codecs".
[6] TR 21.905 " Vocabulary for 3GPP Specifications".
[7] W3C Recommendation 03 February 2015: "Server-Sent Events", http://www.w3.org/TR/eventsource/.
[8] W3C Candidate Recommendation 20 September 2012: "The WebSocket API", http://www.w3.org/TR/websockets/.
[9] W3C Recommendation 07 June 2011: "Cascading Style Sheets Level 2 Revision 1 (CSS 2.1)".
[10] W3C Working Draft, 26 November 2013: "CSS Transforms Module Level 1".
[11] W3C Working Draft, 19 November 2013: "CSS Transitions".
[12] W3C Recommendation, 07 June 2011: "CSS Color Module Level 3".
[13] Standard ECMA-262, 5.1 Edition / June 2011: "ECMAScript Language Specification".
[14] W3C Candidate Recommendation, 7 July 2015: "CSS Basic User Interface Module Level 3 (CSS3 UI)".
[15] W3C Candidate Recommendation, 17 April 2012: "CSS Image Values and Replaced Content Module Level 3".
[16] W3C Candidate Recommendation, 9 September 2014: "CSS Backgrounds and Borders Module Level 3".
[17] W3C Recommendation, 19 June 2012: "Media Queries".
[18] W3C Working draft, 19 February 2013: "CSS Animations".
[19] W3C Last Call Working draft, 14 May 2015: "CSS Flexible Box Layout Module".
[20] W3C Editor's Draft 20 March 2015: "ISO BMFF Byte Stream Format".
[21] W3c Recommendation 24 October 2013: "Geolocation API Specification".
[22] W3C Candidate Recommendation 21 August 2014: "HTML Canvas 2D Context", http://www.w3.org/TR/2dcontext/.
[23] W3C Working Draft 30 January 2014: "XMLHttpRequest Level 1", http://www.w3.org/TR/XMLHttpRequest/.
[24] W3C Candidate Recommendation 31 March 2015: "Media Source Extensions", http://www.w3.org/TR/media-source/.
[25] ISO BMFF Byte Stream Format, http://www.w3.org/2013/12/byte-stream-format-registry/isobmff-byte-stream-format.html
[26] W3C Working Draft 27 October 2015: "Encrypted Media Extensions", http://www.w3.org/TR/encrypted-media/
[27] W3C Candidate Recommendation, 11 December 2014: "Web Cryptography API", http://www.w3.org/TR/WebCryptoAPI/.
[28] RFC 6455: "The WebSocket Protocol", December 2011.
3.1 Definitions
4 Required Mark-up Support Word‑p. 7
For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
Application:
3.2 Abbreviations
an interactive service authored using the set of languages defined by the present document.
For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
API
Application Programming Interface
CSS
Cascading Style Sheet
DASH
Dynamic and Adaptive Streaming over HTTP
EME
Encrypted Media Extensions
HTML5
Hyper-Text Mark-up Language 5
ISO BMFF
ISO Base Media File Format
MBMS
Multimedia Broadcast/Multicast Service
MMS
Multimedia Messaging Service
MPD
Media Presentation Description
MSE
Media Source Extensions
PSS
Packet-switched Streaming Service
SSE
Server-Sent Events
XML
EXtensible Markup Language
4.1 Introduction
5 API Support
The present document defines a 3GPP HTML5 profile for use in 3GPP services, such as PSS [2], MBMS [3] and MMS [5]. In this clause, the set of required mark-up and APIs for the 3GPP HTML5 profile is defined.
The present document defines requirements and recommendations for Applications and UEs conforming to the 3GPP HTML5 Profile.
4.2 Markup
The HTML5 [1] specification defines conformance requirements for user-agents and documents:
4.3 Style
- Applications shall comply with conformance requirements for documents in [1].
- UEs shall comply with conformance requirements for user agents as defined in [1].
4.3.1 Introduction
4.3.3 Device Adaptation, Layout and Processing
4.3.4 Advanced Graphic
4.4 Scripting Word‑p. 8
Support for CSS as a whole is not required by HTML5, even though some features are defined in terms of specific CSS requirements. This clause defines requirements for CSS and other style and/or graphic related technologies.
4.3.2 Basic Graphic
- UEs shall support CSS 2.1 [9].
- UEs shall support CSS Color Module Level 3 [12].
- UEs shall support CSS Image Values and Replaced Content Module Level 3 [15].
- UEs shall support CSS Backgrounds and Borders [16].
- UEs should support CSS Basic User Interface [14].
- UEs should support CSS Media Queries [17].
- UEs should support CSS Flexible Box Layout [19].
- UEs shall support the CSS Transforms [10].
- UEs shall support CSS Transitions [11].
- UEs shall support CSS Animations [18].
Scripts are small programs that can be embedded into applications. While defining features that rely on scripting, HTML5 does not mandate support for scripting for all user-agents. Furthermore, scripting is defined using a syntax that in most cases is independent from the underlying scripting language. For such reasons, the present document has additional requirements as defined in this clause.
- UEs shall support scripting as defined in [1].
- UEs shall support ECMA scripting language [13].
A number of specifications from W3C or other organizations define APIs that provide additional functionalities to applications. This clause lists the specifications that SHALL and SHOULD be supported by a UE.
- UEs shall support the Forms API [1].
- UEs shall support the Canvas API [22].
- UEs shall support the XMLHttpRequest API [23].
- UEs shall support the Media Source Extensions [24].
- UEs shall support the ISO BMFF Byte Stream Format [25] with the MIME type and subtypes audio/mp4 and video/mp4.
- UEs should support the GeoLocation API [21].
- UEs should support the Encrypted Media Extensions [26].
- UEs should support the Web Socket API [8] with the protocol defined in RFC 6455 [28].
- UEs should support the Server-Sent Events API [7].
- UEs should support the WebCrypto API [27].
6.1 Introduction
$ Change history Word‑p. 9
Additional requirements and usage restrictions are necessary depending on the service type that uses the 3GPP HTML5 profile. In this clause, these aspects are addressed.
6.2 DASH
When an HTML5 presentation uses DASH [4] for media streaming, then the HTML5 presentation may reference one or more DASH presentations through a reference to the MPD either as a source of an HTML5 media element or as a reference from one of the referenced resources.
The user agent should support DASH MPD as a supported MIME type for its source elements and attributes, in which case the DASH playback is done by the user agent.
