1、 ETSI TS 126 233 V15.0.0 (2018-07) Universal Mobile Telecommunications System (UMTS); LTE; Transparent end-to-end Packet-switched Streaming service (PSS); General description (3GPP TS 26.233 version 15.0.0 Release 15) TECHNICAL SPECIFICATION 1 ETSI 3GPP TS 26.233 version 15.0.0 Release 15ETSI TS 126
2、 233 V15.0.0 (2018-07)Reference RTS/TSGS-0426233vf00 Keywords LTE,UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7
3、803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the pr
4、ior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the present
5、 document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at https:/portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present document, please send your comment to
6、one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The cont
7、ent of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. ETSI 2018. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are trademarks of ETSI registered for the benefit of i
8、ts Members. 3GPPTM and LTETMare trademarks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members. GSMand the GSM logo are trademarks registered and owned by the GSM Association. 2 ETSI 3GPP TS 26.233 version
9、 15.0.0 Release 15ETSI TS 126 233 V15.0.0 (2018-07)Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and n
10、on-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). P
11、ursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present
12、document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no right to use or reproduce any trademark and/or t
13、radename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The presen
14、t document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:
15、/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
16、provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. 3 ETSI 3GPP TS 26.233 version 15.0.0 Release 15ETSI TS 126 233 V15.0.0 (2018-07)Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g3Introduction 4g
17、31 Scope 5g32 References 5g33 Abbreviations . 6g34 Usage scenarios 6g34.1 Applications . 6g34.2 Use case descriptions 6g34.2.1 Simple streaming (Release 4) . 6g34.2.2 Enhanced streaming service (Release 5) . 8g34.2.3 Streaming and download framework for commercial content (Release 6) . 8g3Progressiv
18、e Downloading 9g34.2.4 PSS with fast content switching (Release 7) . 9g34.2.5 IMS based PSS, PSS time-shifting and EPC (Release 8) . 9g34.2.6 Adaptive HTTP Streaming, Timed graphics (Release 9) 10g34.2.7 Dynamic and Adaptive Streaming over HTTP (Releases 10 onwards) 10g34.2.8 Server and Network Assi
19、sted DASH (SAND) (Releases 15 onwards) . 11g35 General service architecture . 12g36 Functional components of a PSS terminal 15g36.1 Session protocols and data transport 15g36.2 Codecs 15g36.3 Adaptation of continuous media (Releases 6, 9 and 10) . 15g37 File format 15g38 Interworking with other core
20、 network services 16g38.1 Interworking with WAP . 16g38.2 Interworking with MMS . 16g38.3 Interworking with charging/billing services . 16g39 Security. 17g310 Digital Rights Management (Release 6). 17g3Annex A (informative): Change history . 18g3History 19g34 ETSI 3GPP TS 26.233 version 15.0.0 Relea
21、se 15ETSI TS 126 233 V15.0.0 (2018-07)Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the co
22、ntents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved
23、document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the specification. The 3GPP packet-switched streaming service
24、(PSS) specification consists of seven 3GPP TSs; 3GPP TS 22.233 “Transparent end-to-end packet switched streaming service; Stage 1 6, 3GPP TS 26.234 1, 3GPP TS 26.244 7, 3GPP TS 26.245 8, 3GPP TS 26.246 9, 3GPP TS 26.247 15 and the present document. The service requirements for PSS are listed in 6. T
25、he present document provides an overview of the 3GPP PSS and 1 specifies the set of PSS protocols and codecs used by the service; 7 defines the 3GPP file format, 8 defines the 3GPP Timed Text, and 9 defines the 3GPP SMIL Language Profile, 15 defines the protocols and codecs for 3GP-DASH which are al
26、l used by the 3GPP PSS. Introduction Streaming refers to the ability of an application to play synchronised media streams like audio and video streams in a continuous way while those streams are being transmitted to the client over a data network. Applications, which can be built on top of streaming
27、 services, can be classified into on-demand and live information delivery applications. Examples of the first category are music and news-on-demand applications. Live delivery of radio and television programs are examples of the second category. Streaming over fixed-IP networks is already a major ap
28、plication today. While IETF and W3C have developed a set of protocols used in fixed-IP streaming services, no complete standardised streaming framework has yet been defined. For 3G systems, the 3G packet-switched streaming service (PSS) fills the gap between 3G MMS, e.g. downloading, and conversatio
29、nal services. PSS enables mobile streaming applications, where the protocol and terminal complexity is lower than for conversational services, which in contrast to a streaming terminal require media input devices, media encoders and more complex protocols. The present document describes the transpar
30、ent 3G packet-switched streaming services (3G PSS) on a general application level. 5 ETSI 3GPP TS 26.233 version 15.0.0 Release 15ETSI TS 126 233 V15.0.0 (2018-07)1 Scope The present document contains a general description of a transparent packet-switched streaming service in 3GPP-defined networks.
31、In particular, it defines the usage scenarios, overall high-level end-to-end service concept, and lists terminal related functional components. It also lists any identified service interworking requirements. 2 References The following documents contain provisions which, through reference in this tex
32、t, 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
33、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. The present document may contain references to pre-Release-4 GSM specifications. These references shal
34、l be taken to refer to the Release 5 or 6 versions where that version exists. Conversion from the pre-Release-4 number to the Release 4 (onwards) number is given in clause 6.1 of 3GPP TR 41.0012. 1 3GPP TS 26.234:“Transparent end-to-end packet switched streaming service (PSS); Protocols and codecs“.
35、 2 3GPP TR 41.001: “GSM Specification set“. 3 3GPP TS 22.140: “Service aspects; Stage 1; Multimedia Messaging Service“. 4 3GPP TS 23.140: “Multimedia Messaging Service (MMS), Functional description stage 2/3“. 5 3GPP TS 23.060: “General Packet Radio Service (GPRS); Service description; Stage 2“. 6 3
36、GPP TS 22.233: “Transparent end-to-end packet switched streaming service; Stage 1”. 7 3GPP TS 26.244: “Transparent end-to-end packet switched streaming service (PSS); 3GPP file format (3GP)“. 8 3GPP TS 26.245: “Transparent end-to-end packet switched streaming service (PSS); Timed text format“. 9 3GP
37、P TS 26.246: “Transparent end-to-end packet switched streaming service (PSS); 3GPP SMIL Language Profile“. 10 Open Mobile Alliance: “OMA DRM Specification, V2.0”. 11 3GPP TS 26.237: “IP Multimedia Subsystem (IMS) based Packet Switch Streaming (PSS) and Multimedia Broadcast/Multicast Service (MBMS) U
38、ser Service; Protocols“. 12 3GPP TS 26.142: “Dynamic and Interactive Multimedia Scenes (DIMS)“. 13 3GPP TS 26.430: “Timed Graphics“. 14 3GPP TS 23.401: “General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access“. 15 3GPP TS 26.247: “Tran
39、sparent end-to-end Packet-switched Streaming Service (PSS); Progressive Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH)“. 16 3GPP TS 21.905: “Vocabulary for 3GPP Specifications“. 6 ETSI 3GPP TS 26.233 version 15.0.0 Release 15ETSI TS 126 233 V15.0.0 (2018-07)17 ISO/IEC 23009-5:2016: “In
40、formation Technology Dynamic adaptive streaming over HTTP (DASH) Part 5: Server and network assisted DASH (SAND)“. 18 3GPP TR 26.957: “Study on Server And Network-assisted DASH (SAND) for 3GPP Multimedia Services“. 3 Abbreviations For the purposes of the present document, the abbreviations given in
41、3GPP TR 21.905 16 and the following apply: DANE DASH-Aware Network Element DASH Dynamic Adaptive Streaming over HTTP DRM Digital Rights Management GIF Graphics Interchange Format HTML HyperText Markup Language MMS Multimedia Messaging Service MPD Media Presentation Description P-GW Packet Gateway PC
42、RF Policy and Charging Rules Function PER Parameters Enhancing ReceptionPKI Public Key Infrastructure PSS Packet-switched Streaming Service RTSP Real-Time Streaming Protocol SAND Server and Network Assisted DASH SMIL Synchronised Multimedia Integration Language XHTML eXtensible Hyper Text Markup Lan
43、guage 4 Usage scenarios 4.1 Applications The streaming platform supports a multitude of different applications including streaming of news at very low bitrates using still images and speech, music listening at various bitrates and qualities, video clips and watching live sports events. In addition t
44、o streaming, the platform supports also progressive downloading of media for selective media types. Media used by the applications can also be protected with a standardised digital rights management (DRM) technology. In the following use case descriptions, a per release structure is used to highligh
45、t new features and improvements added in each release. Unless stated otherwise, features of a particular release are present in subsequent releases and are also backwards compatible to previous releases. 4.2 Use case descriptions 4.2.1 Simple streaming (Release 4) The simple streaming service includ
46、es a basic set of streaming control protocols, transport protocols, media codecs and scene description protocol. In this basic case defined for the first time in the Release 4 version of this specification, there is neither explicit capability exchange, nor any encryption or digital rights managemen
47、t. A mobile user gets a URI to specific content that suits his or her terminal. This URI may come from a WWW-browser, a WAP-browser, or typed in by hand. This URI specifies a streaming server and the address of the content on that server. A PSS application that establishes the multimedia session sha
48、ll understand a Session Description Protocol (SDP) file. Sessions containing only non-streamable content such as a SMIL file, still images and text to form a time-synchronised presentation dont require use of an SDP file in session establishment. Instead HTTP protocol shall be used for receiving the
49、 presentation files. PSS SMIL 9 sessions can also include URIs to streamable content, requiring parsing a SDP file and/or RTSP signalling. The SDP file may be obtained in a number of ways. It may be provided in a link inside the HTML page that the user downloads, via an embed tag. It may also be directly obtained by typing it as a URI. It may also be obtained through 7 ETSI 3GPP TS 26.233 version 15.0.0 Release 15ETSI TS 126 233 V15.0.0 (2018-07)RTSP signalling via the DESCRIBE method. In case of streaming
