ETSI TS 126 234-2018 Universal Mobile Telecommunications System (UMTS) LTE Transparent end-to-end Packet-switched Streaming Service (PSS) Protocols and codecs (V15 0 0 3GPP TS 26 2.pdf

1、 ETSI TS 126 234 V15.0.0 (2018-07) Universal Mobile Telecommunications System (UMTS); LTE; Transparent end-to-end Packet-switched Streaming Service (PSS); Protocols and codecs (3GPP TS 26.234 version 15.0.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 126 234 V15.0.0 (2018-07)13GPP TS 26.234 ver

2、sion 15.0.0 Release 15Reference RTS/TSGS-0426234vf00 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

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9、(2018-07)23GPP TS 26.234 version 15.0.0 Release 15Intellectual 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 no

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13、adename. 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 present

14、 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 p

16、rovisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 126 234 V15.0.0 (2018-07)33GPP TS 26.234 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 9g3Introduction 9g31

17、 Scope 10g32 References 10g33 Definitions and abbreviations . 15g33.1 Definitions 15g33.2 Abbreviations . 15g34 System description . 17g35 Protocols . 18g35.1 Session establishment . 18g35.2 Capability exchange . 19g35.2.1 General 19g35.2.2 The device capability profile structure 19g35.2.3 Vocabular

18、ies for PSS 19g35.2.3.1 General 19g35.2.3.2 PSS base vocabulary . 19g35.2.3.2.1 PssCommon component 20g35.2.3.2.2 Streaming component 22g35.2.3.2.3 ThreeGPFileFormat component 29g35.2.3.2.4 Void . 31g35.2.3.3 Attributes from UAProf 31g35.2.4 Extensions to the PSS schema/vocabulary 33g35.2.4.1 Vocabu

19、lary definitions 33g35.2.4.2 Backward compatibility 34g35.2.5 Signalling of profile information between client and server . 34g35.2.6 Merging device capability profiles . 34g35.2.7 Profile transfer between the PSS server and the device profile server 35g35.3 Session set-up and control 35g35.3.1 Gene

20、ral 35g35.3.2 RTSP . 35g35.3.2.1 The 3GPP-Link-Char header . 35g35.3.2.2 The 3GPP-Adaptation header 36g35.3.2.3 The Quality of Experience headers . 37g35.3.2.3.1 Protocol initiation and termination 37g35.3.2.3.2 Metrics feedback . 38g35.3.2.3.3 Metrics feedback over HTTP 39g35.3.2.3.3.0 Requirements

21、 and semantics 39g35.3.2.3.3.1 XML Syntax for a QoE Report 40g35.3.2.3.3.2 Example XML for the QoE Report 41g35.3.2.4 Video buffering headers 41g35.3.3 SDP . 42g35.3.3.1 General 42g35.3.3.2 Additional SDP fields . 43g35.3.3.3 The “alt” and “alt-default-id” attributes 46g35.3.3.4 The session level gr

22、ouping attribute, “alt-group” 46g35.3.3.5 The bit-rate adaptation support attribute, “3GPP-Adaptation-Support” 47g35.3.3.6 The Quality of Experience support attribute, “3GPP-QoE-Metrics“ . 47g35.3.3.7 The asset information attribute, “3GPP-Asset-Information“ . 48g35.3.3.8 OMA-DM Configuration of QoE

23、 Metrics . 48g35.3.3.8.0 General 48g3ETSI ETSI TS 126 234 V15.0.0 (2018-07)43GPP TS 26.234 version 15.0.0 Release 155.3.3.8.1 QoE metrics reporting management object . 48g35.3.3.8.2 QoE reporting rule definition 53g35.4 MIME media types . 53g35.5 Extension for Fast Content Switching and Start-up . 5

24、5g35.5.1 Introduction. 55g35.5.2 Extensions to RTSP 1.0 55g35.5.2.1 Introduction . 55g35.5.2.2 Capability Handling 55g35.5.2.2.1 Introduction . 55g35.5.2.2.2 Definition of the “Supported” RTSP Header Field . 55g35.5.2.3 SSRC in the “RTP-Info” RTSP Header Field . 56g35.5.2.4 Semantics of RTSP PLAY me

25、thod . 56g35.5.3 Start-up . 56g35.5.4 Fast Content Switching . 57g35.5.4.1 Introduction . 57g35.5.4.2 “Switch-Stream” RTSP Header Field . 57g35.5.4.3 Switching to new content with available SDP 58g35.5.4.4 Switching to new content without SDP . 58g35.5.4.5 Switching Media described in one SDP 59g35.

26、5.4.6 Adding Media Components to an ongoing session . 60g35.5.4.7 Removing Media Components from an ongoing session 60g35.6 Extension for Time-Shifting Support . 60g35.6.1 Introduction. 60g35.6.2 General Description 60g35.6.2a Extensions to RTSP 1.0 61g35.6.3 Accept-Ranges 61g35.6.4 Signalling Time

27、Shifting Ranges 61g35.6.5 Timeshift buffer status updates . 62g35.7 Support for Trick Mode Operations 62g35.8 Session Update 63g36 Data transport . 65g36.1 Packet based network interface 65g36.2 RTP over UDP/IP . 65g36.2.1 General 65g36.2.2 RTP profiles 65g36.2.3 RTP and RTCP extensions . 65g36.2.3.

28、1 RTCP extended reports . 65g36.2.3.2 RTCP App packet for client buffer feedback (NADU APP packet) . 66g36.2.3.3 RTP retransmission . 67g36.2.3.3.1 General 67g36.2.3.3.2 Multiplexing scheme . 67g36.2.3.3.3 RTCP retransmission request 67g36.2.3.3.4 Congestion control and usage with rate adaptation .

29、67g36.2.4 RTP payload formats 68g36.2.5 Coordination of Video Orientation . 68g36.3 HTTP over TCP/IP . 69g36.4 Transport of RTSP 69g37 Codecs 69g37.1 General . 69g37.2 Speech 69g37.3 Audio 69g37.3a Synthetic audio . 70g37.4 Video 71g37.4.1 General video decoder requirements. 71g37.4.2 Output timing

30、and buffer model . 71g37.4.3 Television services 71g37.4.4 Stereoscopic 3D Video . 72g37.5 Still images . 73g37.6 Bitmap graphics 73g37.7 Vector graphics 73g3ETSI ETSI TS 126 234 V15.0.0 (2018-07)53GPP TS 26.234 version 15.0.0 Release 157.8 Text 73g37.9 Timed text 73g37.10 3GPP file format . 73g37.1

31、1 Timed graphics . 74g38 Scene description 74g38.1 General . 74g38.2 Void 74g38.3 Void 74g39 3GPP file format (interchange format for MMS) . 74g310 Adaptation of continuous media . 74g310.1 General . 74g310.2 Bit-rate adaptation 74g310.2.1 Link-rate estimation 75g310.2.1.1 Initial values 75g310.2.1.

32、2 Regular information sources . 75g310.2.2 Transmission adaptation . 75g310.2.3 Signalling for client buffer feedback 75g310.3 Issues with deriving adaptation information (informative) 76g311 Quality of Experience . 78g311.1 General . 78g311.2 QoE metrics 78g311.2.0 General 78g311.2.1 Corruption dur

33、ation metric . 78g311.2.1.1 Default reporting format . 78g311.2.1.2 XML reporting format . 79g311.2.2 Rebuffering duration metric 79g311.2.2.1 Default reporting format . 79g311.2.2.2 XML reporting format . 80g311.2.3 Initial buffering duration metric 80g311.2.3.1 Default reporting format . 80g311.2.

34、3.2 XML reporting format . 80g311.2.4 Successive loss of RTP packets 80g311.2.4.1 Default reporting format . 80g311.2.4.2 XML reporting format . 81g311.2.5 Frame rate deviation . 81g311.2.5.1 Default reporting format . 81g311.2.5.2 XML reporting format . 81g311.2.6 Jitter duration 81g311.2.6.1 Defau

35、lt reporting format . 81g311.2.6.2 XML reporting format . 82g311.2.7 Content Switch Time 82g311.2.7.1 Default reporting format . 82g311.2.7.2 XML reporting format . 82g311.2.8 Average Codec Bitrate 82g311.2.8.1 Default reporting format . 82g311.2.8.2 XML reporting format . 83g311.2.9 Codec Informati

36、on 83g311.2.9.1 Default reporting format . 83g311.2.9.2 XML reporting format . 83g311.2.10 Buffer Status . 83g311.2.10.1 Default reporting format . 83g311.2.10.2 XML reporting format . 83g311.3 The QoE protocol for RTSP based reporting . 84g311.3.1 General 84g311.3.2 Metrics initiation with SDP 85g3

37、11.3.3 Metrics initiation/termination with RTSP . 85g311.3.4 Sending the metrics feedback with RTSP . 89g312 Adaptive HTTP Streaming . 90g3ETSI ETSI TS 126 234 V15.0.0 (2018-07)63GPP TS 26.234 version 15.0.0 Release 1513 Networked bookmark service . 90g313.1 Introduction 90g313.2 Bookmarking using H

38、TTP . 90g313.2.1 Bookmark storage . 90g313.2.2 Bookmark retrieval . 91g313.2.3 Bookmark deletion 91g313.3 Bookmarking using RTSP 91g3Annex A (informative): Protocols . 92g3A.1 SDP. 92g3A.2 RTSP 100g3A.2.1 General . 100g3A.2.2 Implementation guidelines . 105g3A.2.2.1 Usage of persistent TCP . 105g3A.

39、2.2.2 Detecting link aliveness 106g3A.3 RTP. 106g3A.3.1 General . 106g3A.3.2 Implementation guidelines . 106g3A.3.2.1 Maximum RTP packet size . 106g3A.3.2.2 Sequence number and timestamp in the presence of NPT jump . 107g3A.3.2.3 RTCP transmission interval 107g3A.3.2.4 Timestamp handling after PAUSE

40、/PLAY requests 108g3A.3.3 Examples of RTCP APP packets for client buffer feedback 109g3A.4 Capability exchange . 110g3A.4.1 Overview 110g3A.4.2 Scope of the specification . 111g3A.4.3 The device capability profile structure . 112g3A.4.4 CC/PP Vocabularies . 113g3A.4.5 Principles of extending a schem

41、a/vocabulary. 114g3A.4.6 Signalling of profile information between client and server 114g3A.4.7 Example of a PSS device capability description 115g3Annex B (informative): SMIL authoring guidelines . 117g3Annex C (normative): MIME media types 118g3C.1 (void) 118g3C.2 MIME media type sp-midi . 118g3C.

42、3 MIME media type mobile-xmf . 118g3C.4 (void) 119g3Annex D (normative): 3GP files codecs and identification 120g3Annex E (normative): RTP payload format and file storage format for AMR and AMR-WB audio 121g3Annex F (normative): RDF schema for the PSS base vocabulary . 122g3Annex G (normative): Buff

43、ering of video. 134g3G.1 Introduction 134g3G.2 PSS Buffering Parameters 134g3G.3 PSS server buffering verifier 135g3G.4 PSS client buffering requirements 136g3Annex H (informative): Content creator guidelines for the synthetic audio medium type 137g3ETSI ETSI TS 126 234 V15.0.0 (2018-07)73GPP TS 26.

44、234 version 15.0.0 Release 15Annex I (informative): Void . 138g3Annex J (informative): Mapping of SDP parameters to UMTS QoS parameters . 139g3Annex K (normative): Void (Substituted by Annex R) . 140g3Annex L (informative): SVG Tiny 1.2 content creation guidelines . 141g3L.1 Feature analysis 141g3L.

45、2 Recommendations 142g3L.2.1 General . 142g3L.2.2 Video element 142g3L.2.2.1 Inclusion of the video element in SVG content 142g3L.2.2.2 Transformation of video . 142g3L.2.3 Animation Element. 143g3L.2.4 Void 143g3L.2.5 Transparency, stroking and gradients . 143g3L.2.6 Events . 143g3L.2.7 Text Area 1

46、43g3L.2.8 SVG fonts . 143g3L.2.9 Bitmap fonts . 144g3L.2.10 Animation . 144g3L.2.11 User interaction and content navigation . 144g3L.2.12 Inheritance 144g3Annex M (informative): Examples for Fast Content Switching and Start-up . 145g3M.1 Pipelined Start-up Examples 145g3M.1.1 Successful Pipelined St

47、art-up . 145g3M.1.2 Unsuccessful Pipelined Start-up . 145g3M.2 Content Switch with SDP . 146g3M.2.1 Successful Content Switch with available SDP 146g3M.2.2 Partial successful Content Switch with available SDP . 147g3M.2.3 Successful Content Switch with available SDP, but removal of media component .

48、 148g3M.3 Content Switch without SDP 149g3M.3.1 Successful Content Switch without available SDP . 149g3M.3.2 Partial successful Content Switch without available SDP 149g3M.3.3 Partial successful Content Switch without available SDP 150g3M.4 Stream Switching . 151g3M.4.1 Successful Stream Switch . 15

49、1g3M.4.2 Removal of Media Components from an ongoing session . 152g3Annex N (informative): Recommendations for NAT traversal 153g3N.1 NAT identification . 153g3N.2 NAT traversal . 153g3Annex O (informative): Examples for PSS Timeshift . 154g3Annex P (informative): QoE Reporting Management Object Device Description Framework . 156g3Annex Q (informative): Void . 161g3Annex R (normative): Content Protection extensions 162g3R.1 Encryption and Transport of Protected PSS Streams . 162g3R.1.1 Overview 162g3R.1.2 Stream format . 162g3R.1.3 Encryption 162g3R.1.3.1 Encryption Algorit