ETSI TR 122 948-2017 Digital cellular telecommunications system (Phase 2+) (GSM) Universal Mobile Telecommunications System (UMTS) LTE Study of requirements of IP-Multimedia Subsys.pdf

1、 ETSI TR 122 948 V14.0.0 (2017-03) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Study of requirements of IP-Multimedia Subsystem (IMS) convergent multimedia conferencing (3GPP TR 22.948 version 14.0.0 Release 14) TECHNICAL REPOR

2、T ETSI ETSI TR 122 948 V14.0.0 (2017-03)13GPP TR 22.948 version 14.0.0 Release 14Reference RTR/TSGS-0122948ve00 Keywords GSM,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 b

3、ut non lucratif enregistre la Sous-Prfecture de 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 versio

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6、nd errors in the present document, please send your comment 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 microfi

7、lm except as authorized by written permission of ETSI. The 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 2017. All rights res

8、erved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are 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 b

9、y the GSM Association. ETSI ETSI TR 122 948 V14.0.0 (2017-03)23GPP TR 22.948 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 a

10、vailable for ETSI members and non-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 s

11、erver (https:/ipr.etsi.org/). Pursuant 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 be

12、come, essential to the present document. Foreword 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 ETSI deliverables. The cross reference between

13、GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “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 Rule

14、s (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 TR 122 948 V14.0.0 (2017-03)33GPP TR 22.948 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs termino

15、logy 2g3Foreword . 5g31 Scope 6g32 References 6g33 Definitions, symbols and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 8g34 Requirements and objectives 8g35 General description of IP-Multimedia Subsystem (IMS) convergent multimedia conferencing service. 8g35.1 General . 8g35.2 Basic C

16、MMC 8g35.2.1 Conference types 8g35.2.1.1 Ad-hoc conference and scheduled conference 8g35.2.2 Conference roles . 9g35.2.2.1 Conference host. 9g35.2.2.2 Conference participant 9g35.2.2.3 Floor chair . 9g35.2.3 Media in conference 9g35.2.4 Operations in conference 9g35.2.4.1 Creating conference 9g35.2.

17、4.2 Starting conference 9g35.2.4.3 Joining conference 9g35.2.4.4 Leaving conference . 9g35.2.4.5 Terminating conference 9g35.2.4.6 Hosting Conference . 10g35.2.4.7 Adding and removing media . 10g35.2.4.8 Floor control 10g35.2.5 Conference state 10g35.3 Advanced CMMC 10g35.3.1 Data conference 10g35.3

18、.1.1 Whiteboard 10g35.3.1.2 File transmission . 11g35.3.1.3 Application/desktop sharing 11g35.3.1.4 Synchronized web page browsing . 11g35.3.2 Sidebar conferences 11g35.3.3 Voting . 11g35.3.4 Conference agenda 11g36 Proposed requirements for IP-Multimedia Subsystem (IMS) convergent multimedia confer

19、encing service. 11g36.1 Conference control . 12g36.1.1 Creating a conference . 12g36.1.1.1 Creating an ad-hoc conference 12g36.1.1.2 Creating a scheduled conference . 12g36.1.1.3 Conference identifier . 12g36.1.2 Starting a conference 12g36.1.3 Terminating a conference . 12g36.1.4 Adding participant

20、s . 12g36.1.5 Removing participants 13g36.2 Media control and processing . 13g3ETSI ETSI TR 122 948 V14.0.0 (2017-03)43GPP TR 22.948 version 14.0.0 Release 146.2.1 Adding and removing media . 13g36.2.2 Media mixing 13g36.2.3 Floor control . 13g36.3 Conference state . 14g36.3.1 Conference state infor

21、mation 14g36.3.2 Conference state subscription . 15g36.3.3 Conference state notification 15g36.4 Conference policy. 15g36.4.1 General 15g36.4.2 Conference control policy . 15g36.4.3 Floor control policy 16g36.4.4 Media mixing policy. 16g36.4.5 Participants privacy policy 16g36.4.6 Conference state n

22、otification policy . 16g36.5 Conference management 16g36.5.1 General 16g36.5.2 Conference reservation . 17g36.5.3 Conference announcement 17g36.5.4 Conference recording 17g36.5.5 Conference roles assignment and replacement . 17g36.6 Interaction with other services 18g36.6.1 General 18g36.6.2 Interac

23、tion with presence service 18g36.6.3 Interaction with group management service . 18g36.6.4 Interaction with messaging service . 18g36.6.5 Interaction with IMS multimedia telephony service and its supplementary services . 18g36.6.6 Interaction with calendar applications 18g36.7 Service provisioning .

24、 18g37 Proposed terminal requirements . 19g38 Quality of service . 19g39 Charging . 19g310 Security. 20g310.1 General security requirements 20g310.2 PIN security feature 20g311 Interworking . 20g312 Roaming . 20g313 Considerations on re-use of existing conferencing capabilities . 20g313.1 Re-use of

25、3GPP conferencing capabilities . 20g313.2 Re-use of OMA conferencing capabilities . 21g313.2.1 Converged IP Messaging (CPM) 21g313.2.2 Push-to-Talk over Cellular (PoC version 1 and version 2) . 22g313.2.3 Comparison of proposed CMMC functionality with OMA PoC v2 . 22g313.3 Re-use of W3C conferencing

26、 capabilities 23g314 Conclusion 23g3Annex A: Change history 24g3History 25 ETSI ETSI TR 122 948 V14.0.0 (2017-03)53GPP TR 22.948 version 14.0.0 Release 14Foreword This Technical Report (TR) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The contents of the present document are

27、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 release date and an increase in version number as follows: Version x.y.z where: x the fi

28、rst 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. technical enhancements, corrections, updates, etc. z the third digit is incremented

29、when editorial only changes have been incorporated in the document. ETSI ETSI TR 122 948 V14.0.0 (2017-03)63GPP TR 22.948 version 14.0.0 Release 141 Scope The present document studies the requirements for IP-Multimedia Subsystem (IMS) Convergent Multimedia Conferencing (CMMC) service in IMS. Specifi

30、cally, the objective of this study item is to: a) Identify features of IMS multimedia conferencing, and describe potential service requirements for IMS multimedia conferencing. b) Identify the IMS requirements for multimedia conferencing services: 1) the conference framework 2) data sharing session

31、establishment/termination/management in a conference 3) media control for audio, video and data 4) floor control for audio, video and data 5) conference policy c) Identify possible routes to standardization by: 1) Adopting existing and emerging standards, e.g. OMA, IETF, W3C. 2) Modifying and enhanc

32、ing existing and emerging standards. 3) Developing of new standards. 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, versio

33、n 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 d

34、ocument in the same Release as the present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 22.228: “Service requirements for the Internet Protocol (IP) multimedia core network subsystem (IMS); Stage 1“. 3 3GPP TS 24.147:“Conferencing using the IP Multimedia (IM) Core Netw

35、ork (CN) subsystem; Stage 3“. 4 IETF RFC 4376: “Requirements for Floor Control Protocols“. 5 IETF RFC 4353: “A Framework for Conferencing with the Session Initiation Protocol (SIP)“. 6 IETF RFC 4245: “High-Level Requirements for Tightly Coupled SIP Conferencing“ 7 W3C Working Draft (November 2006):

36、“Voice Browser Call Control: CCXML Version 1.0“. 8 3GPP TR 24.880: “Media Server Control using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3“. 9 3GPP TR 22.115: “Charging and billing“. ETSI ETSI TR 122 948 V14.0.0 (2017-03)73GPP TR 22.948 version 14.0.0 Release 1410 ETSI TS 183 005: “T

37、ISPAN; Release 1; PSTN/ISDN Simulation Services: Conference (CONF); Protocol Specification“. 11 OMA Push to Talk over Cellular 2 Requirements; http:/member.openmobilealliance.org/ftp/Public_documents/POC/Permanent_documents/OMA-RD-PoC-V2_0-20061219-C.zip. 12 OMA Push to talk over Cellular (PoC) Arch

38、itecture; http:/member.openmobilealliance.org/ftp/Public_documents/POC/Permanent_documents/OMA-AD-PoC-V2_1-20060601-D.zip. 13 3GPP TS 22.173: “IP Multimedia Core Network Subsystem (IMS) Multimedia Telephony Service and supplementary services; Stage 1“. 14 IETF Working Draft draft-ietf-xcon-framework

39、-07: “A Framework and Data Model for Centralized Conferencing“. 15 3GPP TS 23.228: “ IP Multimedia Subsystem (IMS); Stage 2“. 16 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 do

40、cument, the terms and definitions given in TR 21.905 1 and the following apply. CMMC Service Subscriber: A subscriber that has been provisioned with a CMMC service. Conference: An IP multimedia session with two or more participants. Each conference has a “conference focus”. A conference can be uniqu

41、ely identified by a user. An example for a conference could be a multimedia game, in which the conference focus is located in a game server. Conference Focus: The conference focus is an entity which has abilities to host conferences including their creation, maintenance, and manipulation of the medi

42、a. A conference focus implements the conference policy (e.g. rules for talk burst control, assign priorities and participants rights). Note: Definition of Conference Focus taken from TS 22.228 2 and is not in conflict with the IETF definition in RFC4353 5. Floor: An individual temporary access or ma

43、nipulation permission for a specific shared resource (or group of resources) RFC 4376 4. Floor Chair: A floor chair is a human or automated entity, who is authorized to manage access to one floor and can grant, deny or revoke access. The floor chair does not have to be a participant in the conferenc

44、e instance. Floor Control: Floor control is a means to manage joint or exclusive access to shared resources in a conferencing environment RFC 4376 4. Floor Owner: Floor owner is a conference participant who is granted the floor and is allowed to send media. Host: The conference host is a specific co

45、nference participant who manages and controls the conference, e.g. adding and removing participants, adding and removing media in the conference, terminating the conference etc. There is only one host in a conference. ETSI ETSI TR 122 948 V14.0.0 (2017-03)83GPP TR 22.948 version 14.0.0 Release 143.2

46、 Abbreviations For the purposes of the present document, the following abbreviations apply in addition to TR 21.9051: CMMC Convergent Multi-Media Conference 4 Requirements and objectives The objective of this study item is to study requirements, terminal requirements and potential new capabilities i

47、n 3GPP that need to be standardized for the CMMC service, especially additional features for roaming and interoperability support. 5 General description of IP-Multimedia Subsystem (IMS) convergent multimedia conferencing service 5.1 General This section gives general description of CMMC service, ide

48、ntifying the features of CMMC service. The IP-Multimedia Subsystem (IMS) Convergent Multimedia Conferencing service enables a multi-party conversation with multimedia including audio, video, message and various data and application. Such a conversation can be associated with a conference focus to ma

49、nage and control the on-going sessions. Conferencing in 3GPP is expected to be under the control of the operator who will take responsibility for the overall management of the conference and the definition/configuration of their policies. To facilitate this, a focal point is required. Two types of conferencing are described in RFC4353 5, loosely (distributed) and tightly coupled, only one of which fulfils this operator need. A loosely coupled conference is one where no coordinated signalling relationship between participants