ETSI TS 124 147-2017 Digital cellular telecommunications system (Phase 2+) (GSM) Universal Mobile Telecommunications System (UMTS) LTE Conferencing using the IP Multimedia (IM) Cor.pdf

1、 ETSI TS 124 147 V14.0.0 (2017-03) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Conferencing using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3 (3GPP TS 24.147 version 14.0.0 Release 14) TECHNICAL SPECIFICATION ET

2、SI ETSI TS 124 147 V14.0.0 (2017-03)13GPP TS 24.147 version 14.0.0 Release 14Reference RTS/TSGC-0124147ve00 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 but n

3、on 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 versions o

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8、d. 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 by th

9、e GSM Association. ETSI ETSI TS 124 147 V14.0.0 (2017-03)23GPP TS 24.147 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 avail

10、able 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 serve

11、r (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 become

12、, essential to the present document. Foreword This Technical 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 i

13、nterpreted as being references to the corresponding 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“, “nee

14、d 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 provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 124 147 V14.0.0 (20

15、17-03)33GPP TS 24.147 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 6g31 Scope 7g32 References 7g33 Definitions, symbols and abbreviations . 9g33.1 Definitions 9g33.2 Abbreviations . 10g34 Conferencing overview 10g35 Protocol us

16、ing SIP and SIP events for conferencing 12g35.1 Introduction 12g35.2 Functional entities 12g35.2.1 User Equipment (UE) . 12g35.2.2 Media Resource Function Controller (MRFC) . 12g35.2.3 Conferencing Application Server (AS) . 12g35.2.4 Media Gateway Control Function (MGCF) 12g35.3 Role 12g35.3.1 Confe

17、rence Participant 12g35.3.1.1 General 12g35.3.1.2 Subscription for conference event package . 12g35.3.1.3 Conference creation 13g35.3.1.3.1 General 13g35.3.1.3.2 Conference creation with a conference factory URI 13g35.3.1.3.3 Three-way session creation . 13g35.3.1.4 Joining a conference 14g35.3.1.4.

18、1 User joining a conference by using a conference URI 14g35.3.1.4.2 User joining a conference after receipt of a REFER request . 14g35.3.1.5 Inviting other users to a conference 14g35.3.1.5.1 General 14g35.3.1.5.2 User invites other user to a conference by sending a REFER request to the other user 1

19、5g35.3.1.5.3 User invites other user to a conference by sending a REFER request to the conference focus . 15g35.3.1.5.4 User invites other users to a conference by including URI list in initial INVITE request to the conference focus 15g35.3.1.6 Leaving a conference 16g35.3.1.6.1 Conference participa

20、nt leaving a conference . 16g35.3.1.6.2 Conference focus removes conference participant from a conference 16g35.3.1.6.3 Removing a conference participant from a conference . 16g35.3.1.7 Consent to list server distribution 17g35.3.2 Conference Focus . 17g35.3.2.1 General 17g35.3.2.2 Generic procedure

21、s for all conference related methods at the conference focus . 17g35.3.2.2.1 Conference focus originating case . 17g35.3.2.2.2 Conference focus terminating case 17g35.3.2.3 Conference creation 18g35.3.2.3.1 Conference creation with a conference factory URI 18g35.3.2.3.2 Conference creation with a co

22、nference URI 18g35.3.2.4 User joining a conference 19g35.3.2.4.1 User joining a conference by using a conference URI 19g35.3.2.5 Invitation of users to a conference 19g35.3.2.5.1 General 19g35.3.2.5.2 Request from a user to invite another user to a conference using a REFER request . 19g3ETSI ETSI TS

23、 124 147 V14.0.0 (2017-03)43GPP TS 24.147 version 14.0.0 Release 145.3.2.5.3 Request from a user to invite another user to a conference using an INVITE request for conference creation 20g35.3.2.5.4 Inviting a user to a conference by sending an INVITE request . 20g35.3.2.5.5 Inviting a user to a conf

24、erence by sending a REFER request 21g35.3.2.6 Leaving a conference 21g35.3.2.6.1 Conference participant leaving a conference . 21g35.3.2.6.2 Removing a conference participant from a conference . 21g35.3.2.6.2.1 General . 21g35.3.2.6.2.2 Request from a conference participant to remove another confere

25、nce participant from a conference 22g35.3.2.6.2.3 Conference focus removes conference participant from a conference . 22g35.3.2.7 Conference termination . 22g35.3.3 Conference Notification Service . 23g35.3.3.1 General 23g35.3.3.2 Subscription to conference event package 23g35.3.3.3 Leaving a confer

26、ence 23g35.3.3.4 Conference termination . 23g36 Protocol using SDP for conferencing . 23g36.1 Introduction 23g36.2 Functional entities 24g36.2.1 User Equipment (UE) . 24g36.2.2 Media Resource Function Controller (MRFC) . 24g36.2.3 Conferencing Application Server (Conferencing AS) 24g36.2.4 Media Gat

27、eway Control Function (MGCF) 24g36.3 Role 24g36.3.1 Conference Participant 24g36.3.2 Conference Focus . 24g37 Void. . 25g38 Protocol for floor control for conferencing 25g38.1 Introduction 25g38.2 Functional entities 25g38.2.1 User Equipment (UE) . 25g38.2.2 Media Resource Function Processor (MRFP)

28、25g38.3 Role 25g38.3.1 Floor participant 25g38.3.2 Floor chair . 25g38.3.3 Floor control server . 26g3Annex A (informative): Example signalling flows of conferencing operation 27g3A.1 Scope of signalling flows . 27g3A.2 Introduction 27g3A.2.1 General . 27g3A.2.2 Key required to interpret signalling

29、flows 27g3A.2.3 Overview of signalling flows related to PSI routeing. 27g3A.3 Flows demonstrating the creation of a conference . 29g3A.3.1 Introduction 29g3A.3.2 User automatically creating a conference with a conference factory URI . 29g3A.3.2.1 MRFC/AS is located in users home network . 29g3A.3.2.

30、2 MRFC/AS is not located in users home network . 47g3A.3.3 User automatically creating a conference with a conference URI 67g3A.3.4 User creating a conference by manually dialling . 68g3A.3.5 User creating a conference from two existing connections (Three-way session), users in different networks .

31、68g3A.3.6 User automatically creating a conference with a conference factory URI and inviting some users to the newly-created conference . 68g3A.4 Flows demonstrating a user joining a conference 85g3A.4.1 Introduction 85g3ETSI ETSI TS 124 147 V14.0.0 (2017-03)53GPP TS 24.147 version 14.0.0 Release 1

32、4A.4.2 User calling into a conference 86g3A.4.2.1 MRFC/AS is not located in users home network . 86g3A.4.2.1.1 Conference URI resolved by the terminating home network 86g3A.4.2.1.2 Conference URI can be resolved by the originating home network 111g3A.4.3 User getting invited to a conference . 128g3A

33、.4.3.1 MRFC/AS is not located in users home network . 128g3A.4.3.1.1 Conference Participant referring another user to a conference . 128g3A.4.3.1.2 User getting referred to a conference by a conference participant 138g3A.4.3.1.3 MRFC/AS invites a user to a conference 147g3A.4.3.1.4 MRFC/AS refers a

34、user to a conference 167g3A.4.4 User requesting IMS to join another user . 178g3A.4.4.1 MRFC/AS is located in users home network . 178g3A.4.5 User joins a private conversation to a conference 186g3A.4.5.1 User in a different network . 186g3A.5 Flows demonstrating a user subscribing to the conference

35、 event package 186g3A.5.1 Introduction 186g3A.5.2 User subscribing to the conference event package . 187g3A.5.2.1 MRFC/AS is not located in users home network . 187g3A.6 Flows demonstrating a user leaving a conference 193g3A.6.1 Introduction 193g3A.6.2 User leaving the conference . 193g3A.6.2.1 MRFC

36、/AS is located in users home network . 193g3A.6.3 User requesting to remove another user from conference 199g3A.6.4 MRFC/AS drops a user from a conference 199g3A.6.4.1 MRFC/AS is located in users home network . 199g3A.7 Flows demonstrating conference termination 202g3A.7.1 General . 202g3A.8 Flows d

37、emonstrating usage of hold and resume during conferences . 202g3A.9 Flows demonstrating the use of the Replaces header . 203g3A.9.1 POTS subscriber invited to a conference . 203g3Annex B (informative): Change history . 208g3History 210g3ETSI ETSI TS 124 147 V14.0.0 (2017-03)63GPP TS 24.147 version 1

38、4.0.0 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 the TSG modify the contents of the p

39、resent 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 document under

40、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 124 147 V14.0.0 (2017-03)73GPP TS 24.147 version 1

41、4.0.0 Release 141 Scope The present document provides the protocol details for conferencing within the IP Multimedia Core Network subsystem (IMS) based on the Session Initiation Protocol (SIP), SIP Events, the Session Description Protocol (SDP) and the Binary Floor Control Protocol (BFCP). The funct

42、ionalities for conference policy control (with respective standardised protocols) are felt to be essential for a complete IMS conferencing service but are not specified in this version of IMS conferencing and are for further study. The present document does not cover the signalling between a MRFC an

43、d a MRFP. Where possible, the present document specifies the requirements for this protocol by reference to specifications produced by the IETF within the scope of SIP, SIP Events, SDP and BFCP, either directly, or as modified by 3GPP TS 24.229. Where this is not possible, extensions to SIP are defi

44、ned within the present document. The document has therefore been structured in order to allow both forms of specification. The present document is applicable to Application Servers (ASs), Multimedia Resource Function Controllers (MRFCs), Multimedia Resource Function Processors (MRFP), Media Gateway

45、Control Functions (MGCFs) and to User Equipment (UE) providing conferencing capabilities. 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,

46、 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 a GSM document), a non-specific reference implicitly refers to t

47、he 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 22.228: “Service requirements for the Internet Protocol (IP) multimedia core network subsystem; Stage 1“. 3 3GPP TS 23.218: “IP Multimedia (IM) session ha

48、ndling; IM call model; Stage 2“. 4 3GPP TS 24.228 Release 5: “Signalling flows for the IP multimedia call control based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3“. 5 3GPP TS 24.229: “Internet Protocol (IP) multimedia call control protocol based on Session I

49、nitiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3“. 6 3GPP TS 23.228: “IP Multimedia Subsystem (IMS); Stage 2“. 7 IETF RFC 3261 (June 2002): “SIP: Session Initiation Protocol“. 8 IETF RFC 4353 (February 2006): “A Framework for Conferencing with the Session Initiation Protocol (SIP)“. 9 IETF RFC 4579 ( August 2006): “Session Initiation Protocol Call Control - Conferencing for User Agents“. 10 IETF RFC 6665 (July 2012): “SIP-Specific Event Notification“. 11 IETF RFC 4575 (August 2006): “A Session Initiation Protocol (SIP) Eve