1、 ETSI TS 1Digital cellular telecoUniversal Mobile TelCombininand IP Multime(3GPP TS 23.2TECHNICAL SPECIFICATION123 279 V13.0.0 (2016communications system (Phaelecommunications System (LTE; ing Circuit Switched (CS) edia Subsystem (IMS) serviceStage 2 .279 version 13.0.0 Release 1316-01) hase 2+); (U
2、MTS); ices; 13) ETSI ETSI TS 123 279 V13.0.0 (2016-01)13GPP TS 23.279 version 13.0.0 Release 13Reference RTS/TSGS-0223279vd00 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
3、 Association but 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/o
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6、u find 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 mic
7、rofilm 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 2016. All rights
8、 reserved. 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 own
9、ed by the GSM Association. ETSI ETSI TS 123 279 V13.0.0 (2016-01)23GPP TS 23.279 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 public
10、ly available 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 W
11、eb server (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 ma
12、y become, 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 sho
13、uld 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:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “ma
14、y“, “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 provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 123 279 V13
15、.0.0 (2016-01)33GPP TS 23.279 version 13.0.0 Release 13Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g3Introduction 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 Overall requirements 7g34
16、.1 General description. 7g34.2 Service requirements 8g35 Architectural requirements . 8g35.1 Architectural requirements . 8g35.2 Session scenarios 9g35.3 UE logic . 9g36 Architecture 10g36.1 General Architecture 10g36.2 CSI Application Server (CSI AS) . 11g36.2.1 CSI AS functionality . 11g36.2.2 Ini
17、tial Filter Criteria 11g37 Capability exchange . 12g37.1 General . 12g37.2 Capability information . 12g37.2.1 Information about the current radio environment . 12g37.2.2 UE capability information 12g37.2.3 IM Status . 13g37.3 Registering UE capability information . 13g37.4 Multiple MEs per user 13g3
18、8 Information flows . 14g38.1 Exchange of capability information at CS call setup 14g38.2 Exchange of UE capability information . 16g38.3 User adds an IMS service to an ongoing CS call 18g38.3.1 IMS session set up without media requiring resource reservation 18g38.3.2 IMS session set- up with media
19、requiring resource reservation 19g38.4 User adds a CS call to an ongoing IMS session . 22g38.5 Release of CSI 23g38.6 Terminating a Multimedia IMS session to a CSI UE . 23g39 Interaction with supplementary services 25g39.1 General . 25g39.2 Line Identification 25g39.2.1 Calling Line Identity Present
20、ation (CLIP) 25g39.2.2 Calling Line Identification Restriction (CLIR) . 25g39.2.3 Connected Line Identification Presentation (COLP) 26g39.2.4 Connected Line Identification Restriction (COLR) 26g39.3 Call Forwarding 26g39.4 Call Offering 26g39.4.1 Explicit Call Transfer (ECT) 26g3ETSI ETSI TS 123 279
21、 V13.0.0 (2016-01)43GPP TS 23.279 version 13.0.0 Release 139.5 Call Completion . 27g39.5.1 Call Waiting (CW) and Call Hold (CH) . 27g39.6 Call Barring 27g310 Other considerations . 27g310.1 Handover 27g310.2 Relation to SMS . 28g3Annex A (Informative): Support of CSI origination towards IMS terminat
22、ion with CSI interworking . 29g3A.1 Introduction 29g3A.2 Overview 29g3A.3 Procedures 29g3A.3.1 General Architecture 29g3A.3.3 Call flows for setting up the voice session for CSI origination and IMS termination with CSI interworking . 31g3A.3.4 Call flows for adding IMS sessions to existing voice cal
23、ls for CSI origination with CSI interworking 33g3Annex B (informative): Change history . 37g3History 38g3ETSI ETSI TS 123 279 V13.0.0 (2016-01)53GPP TS 23.279 version 13.0.0 Release 13Foreword This Technical Report has been produced by the 3rd Generation Partnership Project (3GPP). The contents of t
24、he 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 release date and an increase in version number as follows: Versi
25、on 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. technical enhancements, corrections, updates, etc. z the thi
26、rd digit is incremented when editorial only changes have been incorporated in the document. Introduction The combination of CS and IMS services (CSI) is the parallel operation of a CS service and an IMS session between the same two users. It does not require a specific subscription and a specific ch
27、arging correlation. ETSI ETSI TS 123 279 V13.0.0 (2016-01)63GPP TS 23.279 version 13.0.0 Release 131 Scope The present document provides architectural details to combine CS services and IMS services for using them in parallel between the same two users in a peer-to-peer context. The document provide
28、s a detailed description of how capabilities and identities are exchanged to enable the combination of CS and IMS services between the same two UEs. The present document includes the following capabilities that enable the combination of CS and IMS services: - Radio capability exchange. - SIP based U
29、E terminal capability exchange. - MSISDN number exchange in SIP. - Establishing an IMS session in parallel to an ongoing CS call between the same two UEs. - Establishing a CS call in parallel to an ongoing IMS session between the same two users UEs. - Network support for establishing multimedia sess
30、ions between a UE that uses IMS origination and a UE that uses CSI termination. The individual CS call or IMS service that are combined are described in their respective specifications. 2 References The following documents contain provisions, which, through reference in this text, constitute provisi
31、ons of the present document. - 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 referen
32、ce to a 3GPP document (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 23.228: “IP Multimedia Subsystem (IMS); Stage 2“. 3 3GPP
33、TS 23.081: “Line Identification supplementary services; Stage 2“. 4 3GPP TS 23.221: “Architectural Requirements“. 5 3GPP TS 23.002: “Network Architecture“. 6 3GPP TS 24.008: “Mobile radio interface Layer 3 specification; Core network protocols; Stage 3“. 7 3GPP TS 29.002: “Mobile Application Part (M
34、AP) specification“. 8 3GPP TS 23.082: “Call Forwarding (CF) supplementary services; Stage 2“. 9 3GPP TS 23.083: “Call Waiting (CW) and Call Hold (HOLD) supplementary services; Stage 2“. 10 3GPP TS 23.060: “General Packet Radio Service (GPRS); Service description; Stage 2“. 11 3GPP TS 23.088: “Call B
35、arring (CB) Supplementary Service; Stage 2“. 12 3GPP TS 23.091: “Explicit Call Transfer (ECT) Supplementary Service; Stage 2“. 13 3GPP TS 22.279: “Combined CS Calls and IMS Sessions; Stage 1“. ETSI ETSI TS 123 279 V13.0.0 (2016-01)73GPP TS 23.279 version 13.0.0 Release 1314 3GPP TS 22.115: “Service
36、Aspects; Charging and Billing“. 15 3GPP TS 23.087: “User-to-User Signalling (UUS) Supplementary Service; Stage 2“. 16 3GPP TS 23.078: “Customised Applications for Mobile network Enhanced Logic (CAMEL) Phase 4; Stage 2“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present
37、document, the terms and definitions given in 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 TR 21.905 1. CSI session: a multimedia session that uses the CS domain to transport all or some media components
38、(typically, voice) and the IMS/PS domain to transport the other media components. A CSI session can be created either by establishing first a CS call and subsequently a concurrent IMS session(s), or by establishing first an IMS session(s) and subsequently a concurrent CS call. From the user point of
39、 view, a CSI session is conceived as a single multimedia session. Multimedia IMS session: a multimedia session that uses only the IMS/PS domain to transport both real-time and non-real-time media components. CSI origination: the case when a UE initiates a CS call and subsequently adds an IMS session
40、(s), or vice versa, addressed towards the same user. CSI termination: the case when a call to a UE is terminated in the CS domain (e.g. for real-time component), while an IMS session(s) from the same originating user and towards the same UE is terminated in the IMS/PS domain. IMS origination: the ca
41、se when a UE initiates an IMS session(s) and the CS domain is not involved in the originating part of the session(s). IMS termination: the case when an IMS session(s) is terminated in the IMS/PS domain and the CS domain is not involved in the terminating part of the session(s). 3.2 Abbreviations For
42、 the purposes of the present document, the following abbreviations apply: AS Application Server CSI Combination of CS and IMS services DTM Dual Transfer Mode IAM Initial Address Message CON Connect Message MRFC Media Resource Function; Control part MRFP Media Resource Function; Physical Part MSRP Me
43、ssage Session Relay Protocol RAT Radio Access Technology RTP Real-time Transfer Protocol 4 Overall requirements 4.1 General description The “combination of CS and IMS services“ (CSI) is essentially a combination of existing CS and IMS services, i.e. mechanisms and procedures for the IMS part of the
44、CSI session apply according to TS 23.228 2. ETSI ETSI TS 123 279 V13.0.0 (2016-01)83GPP TS 23.279 version 13.0.0 Release 13The UE presents the CS call and IMS session within one context to the user. To facilitate this, the following capabilities shall be provided: 1. Exchange of information related
45、to the current radio environment; 2. Exchange of terminal capability information; 3. Addition of an IMS session to an ongoing CS call; 4. Addition of a CS call to an ongoing IMS session. 5. Network support for establishing multimedia sessions between a UE that uses IMS origination and a UE that uses
46、 CSI termination. CSI services can be provided: 1. Between two CSI capable UEs that both use CSI origination and CSI termination; 2. Between a UE that uses IMS origination and a UE that uses CSI termination. 4.2 Service requirements The service requirements of combining IMS and CS services are descr
47、ibed in TS 22.279 13. 5 Architectural requirements 5.1 Architectural requirements The following general requirements are applicable to CSI: - The solution is applicable to GERAN and UTRAN; - A CSI capable UE requires DTM capability (in case of GERAN access) and MultiRAB capability (in case of UTRAN
48、access); - IMS networks and IMS UEs without CSI support should not be impacted; - CS core, PS core, xRAN are not to be impacted. Conclusively, changes should be restricted to the IMS elements and the UEs that support CSI for IMS; - Procedures connecting the IMS to the CS domain, to the PSTN and to o
49、ther SIP networks, including other IMS networks should remain unchanged; - CS only UEs and PS only UEs are not to be impacted; - CSI capable UE provides capabilities to associate the corresponding peer-to-peer CS and IMS communication to present it within one context for the user. The IMS communication may be peer-to-peer session or session unrelated communication, e.g. IMS immediate messaging; - The quality of the CS call (e.g. voice quality, setup delay, handover, etc.) shall not be impacted from a user perception point of view regard
