1、 ETSI TS 1Universal Mobile TelTelepresence using tMedia Ha(3GPP TS 26.2TECHNICAL SPECIFICATION126 223 V13.0.0 (2016elecommunications System (LTE; g the IP Multimedia SubsystemH ndling and Interaction .223 version 13.0.0 Release 1316-01) (UMTS); tem (IMS); 13) ETSI ETSI TS 126 223 V13.0.0 (2016-01)13
2、GPP TS 26.223 version 13.0.0 Release 13Reference DTS/TSGS-0426223vd00 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 d
3、e Grasse (06) N 7803/88 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 modifi
4、ed without the prior 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. Use
5、rs of the present 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 http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comm
6、ent to 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. T
7、he content 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. European Telecommunications Standards Institute 2016. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are
8、Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 126 223 V13.0.0 (201
9、6-01)23GPP TS 26.223 version 13.0.0 Release 13Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be fo
10、und 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/). Pursuant to the ETSI IPR P
11、olicy, 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 document. Foreword This T
12、echnical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present 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
13、ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/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 t
14、o be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 126 223 V13.0.0 (2016-01)33GPP TS 26.223 version 13.0.0 Release 13Conte
15、nts Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 References 5g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 System Description 8g34.1 Overview 8g34.2 TP UE . 9g35 Media Codecs . 10g35.1 Speech 10g35.2 Video 10
16、g35.3 Real-time Text 11g36 Media Configuration 12g37 Data Transport 13g37.1 Introduction 13g37.2 RTP Payload Formats for TP UEs 13g38 Audio/Video Parameters 13g38.1 Overview 13g38.2 Capture-Related Parameters . 14g38.2.1 General Parameters . 14g38.2.2 Visual Parameters . 15g38.2.3 Audio Parameters 1
17、6g38.2.4 Delay Parameters 16g38.2.5 Multiple Source Capture Parameters 17g38.3 Telepresence System Environment Parameters 17g39 Interworking . 17g310 Jitter Buffer Management . 18g3Annex A (informative): SDP and CLUE Examples . 19g3A.1 TP Session Setup with CLUE-Controlled Video Support 19g3A.2 TP S
18、ession Setup with CLUE-Controlled Audio Support . 28g3A.3 Interworking between TP UE and MTSI UE . 34g3Annex B (informative): Change history . 36g3History 37g3ETSI ETSI TS 126 223 V13.0.0 (2016-01)43GPP TS 26.223 version 13.0.0 Release 13Foreword This Technical Specification has been produced by the
19、 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 contents of the present document, it will be re-released by the TSG with an identifying change of rele
20、ase 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 document under change control. y the second digit is incremented for all changes of substance, i.e.
21、technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 126 223 V13.0.0 (2016-01)53GPP TS 26.223 version 13.0.0 Release 131 Scope The present document specifies a client for the IMS-based tel
22、epresence service supporting conversational speech, video and text transported over RTP. Telepresence is defined as a conference with interactive audio-visual communications experience between remote locations, where the users enjoy a strong sense of realism and presence between all participants (i.
23、e. as if they are in same location) by optimizing a variety of attributes such as audio and video quality, eye contact, body language, spatial audio, coordinated environments and natural image size. A telepresence system is defined as a set of functions, devices and network elements which are able t
24、o capture, deliver, manage and render multiple high quality interactive audio and video signals in a telepresence conference. An appropriate number of devices (e.g. cameras, screens, loudspeakers, microphones, codecs) and environmental characteristics are used to establish telepresence. The media ha
25、ndling capabilities of a telepresence client (TP UE) are specified in the present document. A TP UE supports Multimedia Telephony Service for IMS (MTSI) UE media handling capabilities 2, but it also supports more advanced media handling capabilities. The media handling aspects of a TP UE within the
26、scope of the present document include media codecs, media configuration and session control, data transport, audio/video parameters, and interworking with MTSI. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present documen
27、t. 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
28、 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 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 26.114: “IP Multimedia Subsystem (IMS); Multimedia telephony; Media handling and interact
29、ion“. 3 3GPP TS 22.228: “Service requirements for the Internet Protocol (IP) multimedia core network subsystem (IMS); Stage 1“. 4 3GPP TS 24.229: “IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3“. 5 3GPP TS 24.147: “Confe
30、rencing using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3“. 6 3GPP TS 24.103: “Telepresence using the IP Multimedia (IM) Core Network (CN) Subsystem (IMS); Stage 3“. 7 draft-ietf-clue-framework-23 (September 2015): “Framework for Telepresence Multi-Streams“. 8 draft-ietf-clue-datacha
31、nnel-10 (September 2015): “CLUE Protocol Data Channel“. 9 draft-ietf-clue-signaling-06 (August 2015): “CLUE Signaling“. 10 draft-ietf-clue-data-model-schema-10 (June 2015): “An XML Schema for the CLUE data model“. 11 draft-ietf-clue-protocol-06 (October 2015): “CLUE Protocol“. 12 draft-ietf-clue-rtp
32、-mapping-05 (October 2015): “Mapping RTP streams to CLUE media captures“. ETSI ETSI TS 126 223 V13.0.0 (2016-01)63GPP TS 26.223 version 13.0.0 Release 1313 draft-ietf-mmusic-sctp-sdp-14 (March 2015): “Stream Control Transmission Protocol (SCTP) Based Media Transport in the Session Description Protoc
33、ol (SDP)“. 14 draft-ietf-mmusic-data-channel-sdpneg-05 (October 2015): “SDP-based Data Channel Negotiation“. 15 draft-ietf-tsvwg-sctp-dtls-encaps-09 (January 2015): “DTLS Encapsulation of SCTP Packets“. 16 ITU-T Recommendation H.264 (04/2013): “Advanced video coding for generic audiovisual services“
34、. 17 ITU-T Recommendation H.265 (04/2013): “High efficiency video coding“. 18 IETF RFC 6184 (2011): “RTP Payload Format for H.264 Video“, Y.-K. Wang, R. Even, T. Kristensen, R. Jesup. 19 IETF Internet-Draft: “RTP Payload Format for High Efficiency Video Coding“, draft-ietf-payload-rtp-h265-03.txt ,W
35、ang Y.-K. et al, April 2014. 20 IETF RFC 3264 (2002): “An Offer/Answer Model with the Session Description Protocol (SDP)“, J. Rosenberg and H. Schulzrinne. 21 draft-ietf-mmusic-sdp-simulcast-01 (July 2015): “Using Simulcast in SDP and RTP Session“. 22 Recommendation ITU-T H.241 (02/2012): “Extended
36、video procedures and control signals for ITU-T H.300-series terminals “. 23 IETF RFC 6236 (2011): “Negotiation of Generic Image Attributes in the Session Description Protocol (SDP) “, I. Johansson and K. Jung. 24 Recommendation ITU-T H.245 (05/2011): “Control protocol for multimedia communication“.
37、25 IETF RFC 4566 (2006): “SDP: Session Description Protocol“, M. Handley, V. Jacobson and C. Perkins. 26 IETF RFC 6464: “A Real-time Transport Protocol (RTP) Header Extension for Client-to-Mixer Audio Level Indication“. 27 3GPP TS 26.441: “Codec for Enhanced Voice Services (EVS); General Overview“.
38、28 3GPP TS 26.442: “Codec for Enhanced Voice Services (EVS); ANSI C code (fixed-point)“. 29 3GPP TS 26.445: “Codec for Enhanced Voice Services (EVS); Detailed Algorithmic Description“. 30 3GPP TS 26.450: “Codec for Enhanced Voice Services (EVS); Discontinuous Transmission (DTX)“. 31 3GPP TS 26.171:
39、“Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; General description“. 32 3GPP TS 26.190: “Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Transcoding functions“. 33 3GPP TS 26.173: “ANCI-C code for the A
40、daptive Multi Rate - Wideband (AMR-WB) speech codec“. 34 3GPP TS 26.204: “Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; ANSI-C code“. 35 3GPP TS 26.071: “Mandatory Speech Codec speech processing functions; AMR Speech CODEC; General description“. 36 3
41、GPP TS 26.090: “Mandatory Speech Codec speech processing functions; Adaptive Multi-Rate (AMR) speech codec; Transcoding functions“. 37 3GPP TS 26.073: “ANSI C code for the Adaptive Multi Rate (AMR) speech codec“. 38 3GPP TS 26.104: “ANSI-C code for the floating-point Adaptive Multi Rate (AMR) speech
42、 codec“. 39 Recommendation ITU-T F.734 (10/2014): “Definitions, requirements, and use cases for Telepresence Systems“. ETSI ETSI TS 126 223 V13.0.0 (2016-01)73GPP TS 26.223 version 13.0.0 Release 1340 Recommendation ITU G.1091 (10/2014): “Quality of Experience requirements for telepresence services“
43、. 41 Recommendation ITU-T H.TPS-AV (02/2015): “Audio/video parameters for telepresence systems “. 42 Recommendation ITU-T H.420 (10/2014): “Telepresence System Architecture“. 43 Recommendation ITU-T H.323 (12/2009): “Packet-based multimedia communication systems“. 44 3GPP TS 26.093: “Mandatory speec
44、h codec speech processing functions; Adaptive Multi-Rate (AMR) speech codec; Source controlled rate operation“. 45 3GPP TS 26.193: “Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Source controlled rate operation“. 46 3GPP TS 26.446: “Codec for Enhance
45、d Voice Services (EVS); AMR-WB Backward Compatible Functions“. 47 3GPP TS 26.443: “Codec for Enhanced Voice Services (EVS); ANSI C code (floating-point)“. 48 IETF RFC 4574: “The Session Description Protocol (SDP) Label Attribute“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of t
46、he present document, the terms and definitions given in 3GPP TR 21.905 1 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 1. Conference: An IP multimedia session with two or more participants. Each confer
47、ence has a “conference focus“. A conference can be uniquely identified by a user. Examples for a conference could be a Telepresence or a multimedia game, in which the conference focus is located in a game server. IM session: An IP multimedia (IM) session is a set of multimedia senders and receivers
48、and the data streams flowing from senders to receivers. IP multimedia sessions are supported by the IP multimedia CN Subsystem and are enabled by IP connectivity bearers (e.g. GPRS as a bearer). A user may invoke concurrent IP multimedia sessions. Telepresence: A conference with interactive audio-vi
49、sual communications experience between remote locations, where the users enjoy a strong sense of realism and presence between all participants by optimizing a variety of attributes such as audio and video quality, eye contact, body language, spatial audio, coordinated environments and natural image size. Telepresence System: A set of functions, devices and network elements which are able to capture, deliver, manage and render multiple high quality interactive audio and
