1、 ETSI TS 124 103 V14.0.0 (2017-03) Universal Mobile Telecommunications System (UMTS); LTE; Telepresence using the IP Multimedia (IM) Core Network (CN) Subsystem (IMS); Stage 3 (3GPP TS 24.103 version 14.0.0 Release 14) TECHNICAL SPECIFICATION ETSI ETSI TS 124 103 V14.0.0 (2017-03)13GPP TS 24.103 ver
2、sion 14.0.0 Release 14Reference RTS/TSGC-0124103ve00 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. European Telecommunications Standards Institute 2017. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade M
8、arks 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 124 103 V14.0.0 (2017-03)23
9、GPP TS 24.103 version 14.0.0 Release 14Intellectual 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 found in
10、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 Policy,
11、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 The present d
12、ocument 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:/we
13、bapp.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 pro
14、visions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 124 103 V14.0.0 (2017-03)33GPP TS 24.103 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 Refere
15、nces 6g33 Definitions, symbols and abbreviations . 7g33.1 Definitions 7g33.2 Symbols 7g33.3 Abbreviations . 7g34 Telepresence overview . 7g34.1 General . 7g34.2 Spatial information . 8g34.3 Media information 8g34.4 Meeting description 8g34.5 Presentation 9g34.6 Information usage . 9g35 Protocol usin
16、g SIP for telepresence 9g35.1 Introduction 9g35.2 Functional entities 9g35.2.1 User Equipment (UE) . 9g35.2.2 Media Resource Function Controller (MRFC) . 10g35.2.3 Conferencing Application Server (Conferencing AS) 10g35.3 Role 10g35.3.1 Participant . 10g35.3.2 Conference Focus . 10g36 Protocol using
17、 SDP for telepresence 10g36.1 Introduction 10g36.2 Functional entities 10g36.2.1 User Equipment (UE) . 10g36.2.2 Media Resource Function Controller (MRFC) . 10g36.2.3 Conferencing Application Server (Conferencing AS) 11g36.3 Roles . 11g36.3.1 Participant . 11g36.3.1.1 General 11g36.3.1.2 Initiation
18、of IM session supporting telepresence . 11g36.3.1.2.1 Origination procedures 11g36.3.1.2.2 Termination procedures. 12g36.3.1.3 Session update . 12g36.3.1.4 End of IM session supporting telepresence . 12g36.3.2 Conference Focus . 12g36.3.2.1 General 12g36.3.2.2 Initiation of IM session supporting tel
19、epresence . 12g36.3.2.2.1 Origination procedures 12g36.3.2.2.2 Termination procedures. 13g36.3.2.3 Session update . 13g36.3.2.4 End of IM session supporting telepresence . 13g37 Protocol using CLUE for telepresence . 13g37.1 Introduction 13g37.2 Functional entities 14g37.2.1 User Equipment (UE) . 14
20、g37.2.2 Media Resource Function (MRF) . 14g3ETSI ETSI TS 124 103 V14.0.0 (2017-03)43GPP TS 24.103 version 14.0.0 Release 147.2.3 Conferencing Application Server (Conferencing AS) 14g37.3 Roles . 14g37.3.1 Media provider 14g37.3.1.1 General 14g37.3.1.2 Media capture advertisement 14g37.3.1.2.1 Multip
21、le content switching and composition . 15g37.3.1.2.2 Presentation Initiation 15g37.3.2 Media consumer 15g37.3.2.1 General 15g37.3.2.2 Media capture configuration . 15g37.3.2.2.1 Multiple content switching and composition . 15g37.3.2.2. 2 Presentation selection 15g38 Protocol for floor control for te
22、lepresence . 16g38.1 Introduction 16g3Annex A (informative): Example signalling flows . 17g3A.1 Scope of signalling flows . 17g3A.2 Key required to interpret signalling flows 17g3A.3 Flows demonstrating the creation of an IM conference supporting telepresence 18g3A.3.1 Introduction 18g3A.3.2 User cr
23、eating an IM conference supporting telepresence . 18g3A.3.3 User invited to an IM conference supporting telepresence . 35g3A.4 Flows demonstrating the update of an onging IM conference supporting telepresence . 36g3Annex B (informative): Change history . 37g3History 38g3ETSI ETSI TS 124 103 V14.0.0
24、(2017-03)53GPP TS 24.103 version 14.0.0 Release 14Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation 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 th
25、e TSG modify the contents 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 indi
26、cates TSG approved 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 document. ETSI ETSI TS 124 103 V14.0.0
27、(2017-03)63GPP TS 24.103 version 14.0.0 Release 141 Scope The present document provides the protocol details for telepresence using the IP Multimedia (IM) Core Network (CN) subsystem based on the Session Initiation Protocol (SIP), the Session Description Protocol (SDP), the Binary Floor Control Prot
28、ocol (BFCP) and the ControLling mUltiple streams for tElepresence (CLUE) controlling multiple streams for telepresence based on service requirements. The present document addresses the areas of describing and negotiating IM session with multiple media streams based on the IM CN subsystem, including
29、point to point calls as specified in 3GPP TS 24.229 2 and multiparty conferences as specified in 3GPP TS 24.147 3, to facilitate the support of telepresence. The functionalities for conference policy control and the signalling between a MRFC and a MRFP are not specified in this document. Where possi
30、ble, the present document specifies the requirements for this protocol by reference to specifications produced by the IETF within the scope of SIP, SDP, CLUE and BFCP, either directly, or as modified by 3GPP TS 24.229 2. The present document is applicable to Application Servers (ASs), Multimedia Res
31、ource Function Controllers (MRFCs), Multimedia Resource Function Processors (MRFP) and User Equipment (UE) providing IM session supporting telepresence capabilities. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present do
32、cument. - 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
33、 (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 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 24.229: “Internet Protocol (IP) multimedia call control protocol based on Sess
34、ion Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3“. 3 3GPP TS 24.147: “Conferencing using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3“. 4 draft-ietf-clue-framework-23 (September 2015): “Framework for Telepresence Multi-Streams“. Editors note: The above doc
35、ument cannot be formally referenced until it is published as an RFC. 5 draft-ietf-clue-datachannel-11 (November 2015): “CLUE Protocol data channel“. Editors note: The above document cannot be formally referenced until it is published as an RFC. 6 draft-ietf-clue-signaling-06 (August 2015): “CLUE Sig
36、naling“. Editors note: The above document cannot be formally referenced until it is published as an RFC. 7 draft-ietf-mmusic-sctp-sdp-14 (March 2015): “Stream Control Transmission Protocol (SCTP) Based Media Transport in the Session Description Protocol (SDP)“. Editors note: The above document canno
37、t be formally referenced until it is published as an RFC. 8 IETF RFC 3264 (June 2002): “An Offer/Answer Model with Session Description Protocol (SDP)“. ETSI ETSI TS 124 103 V14.0.0 (2017-03)73GPP TS 24.103 version 14.0.0 Release 149 draft-ietf-clue-data-model-schema-11 (October 2015): “An XML Schema
38、 for the CLUE data model“. Editors note: The above document cannot be formally referenced until it is published as an RFC. 10 3GPP TS 23.218: “IP Multimedia (IM) session handling; IM call model; Stage 2“. 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present docume
39、nt, 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. IM session: An IP multimedia (IM) session is a set of multimedia senders and receivers and the d
40、ata 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-visual comm
41、unications 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. 3.2
42、 Symbols 3.3 Abbreviations For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 1 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 1. AS Application Server
43、BFCP Binary Floor Control Protocol CLUE ControLling mUltiple streams for tElepresence DTLS Datagram Transport Layer Security IMS IP Multimedia CN subsystem MCC Multiple Content Capture MRF Multimedia Resource Function MRFC Multimedia Resource Function Controller MRFP Multimedia Resource Function Pro
44、cessor SCTP Stream Control Transmission Protocol SDP Session Description Protocol SIP Session Initiation Protocol TP TelePresence TP UE TelePresence User Equipment UE User Equipment 4 Telepresence overview 4.1 General As an architectural framework for provision of IP multimedia services, IMS is capa
45、ble of delivering various service functionalities and easing to integrate with new kinds of application, such as telepresence. Compared to traditional video conference, telepresence is a communication system with multiple cameras, microphones and screens that has the ETSI ETSI TS 124 103 V14.0.0 (20
46、17-03)83GPP TS 24.103 version 14.0.0 Release 14characteristics of gaze direction, eye contact, spatial audio and scaling images to true size, which in all to achieve the immersive “being there“ experience for participants. IMS is using the IETF defined session control mechanism with the inherited ca
47、pability to negotiate multiple multimedia streams in one single session, which could be applied as a basis for supporting telepresence in IMS that always has the necessity of producing and rendering various media streams with high qualities among the involved parties, even in the point to point case
48、. Based on the existing procedures as specified in 3GPP TS 24.229 2 and 3GPP TS 24.147 3, this specification introduces updates and enhancements for IMS by incorporating CLUE with SIP, SDP and BFCP to facilitate controlling multiple spatially related media streams in an IM session supporting telepre
49、sence. To provide a “being there“ experience for conversational audio and video session between remote locations, a variety of information needs to be coordinated, such as: - audio and video spatial information; - information to enable eye contact, gaze awareness, body language and natural image size; and - information to coordinate the environments; 4.2 Spatial information A spatial relationship is representative of the arrangement in space of two or more objects in the same capture scene, in contrast to retain in time or other rel
