1、 ETSI TR 122 973 V14.0.0 (2017-03) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IMS Multimedia Telephony service; and supplementary services (3GPP TR 22.973 version 14.0.0 Release 14) TECHNICAL REPORT ETSI ETSI TR 122 973 V14.0.
2、0 (2017-03)13GPP TR 22.973 version 14.0.0 Release 14Reference RTR/TSGS-0122973ve00 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 non lucratif enregistre la
3、 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 of the present document sh
4、all not be modified 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
5、 Secretariat. Users 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 https:/portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present docu
6、ment, 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 microfilm except as authorized by wr
7、itten 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 reserved. DECTTM, PLUGTESTSTM, U
8、MTSTMand 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 the GSM Association. ETSI E
9、TSI TR 122 973 V14.0.0 (2017-03)23GPP TR 22.973 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
10、 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 server (https:/ipr.etsi.org/).
11、 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, essential to the presen
12、t 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 GSM, UMTS, 3GPP and ETSI iden
13、tities 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 Rules (Verbal forms for the expre
14、ssion of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TR 122 973 V14.0.0 (2017-03)33GPP TR 22.973 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g3Introdu
15、ction 5g31 Scope 6g32 References 6g33 Definitions, symbols and abbreviations . 6g33.1 Definitions 6g33.2 Abbreviations . 7g34 Service description . 7g34.1 General service characteristics . 7g34.2 Default media handling capabilities of the IMS Multimedia Telephony service . 7 g35 Service requirements
16、 8g36 Quality of Service (QoS) 8g37 Interworking considerations . 8g37.1 Interworking with CS domain 8g37.2 Interworking with external networks 8g38 Supplementary services 8g38.1 Background 8g38.1.1 General considerations on supplementary services in IMS 8g38.1.2 IMS services . 8g38.1.3 Supplementar
17、y services 8g38.1.4 Building blocks of supplementary services 9g38.1.5 Service consistency with CS supplementary services . 9g38.2 Comparisons between CS supplementary services and existing IMS capabilities . 10g38.2.1 Line Identification services . 10g38.2.1.1 CLIP 10g38.2.1.2 CLIR . 11g38.2.1.3 CO
18、LP 11g38.2.1.4 COLR 11g38.2.2 Call Forwarding 12g38.2.3 Call Waiting and Call Hold 13g38.2.3.1 Call Waiting 13g38.2.3.2 Call Hold . 13g38.2.4 Call Barring 13g38.3 Analysis of TISPAN Multimedia Telephony supplementary services . 14g38.3.1 Analysis result 18g38.3.1.1 Originating Identification Present
19、ation (OIP) . 18g38.3.1.2 Originating Identification Restriction (OIR) . 18g38.3.1.3 Terminating Identification Presentation (TIP). 18g38.3.1.4 Terminating Identification Restriction (TIR) 18g38.3.1.5 Communication Diversion (CDIV) . 18g38.3.1.6 Communication Hold (HOLD) 19g38.3.1.7 Communication Ba
20、rring (CB) . 19g38.3.1.8 Message Waiting Indication (MWI) 19g38.3.1.9 Conference (CONF) 19g38.3.1.10 Explicit Communication Transfer (ECT) 19g38.4 Potential supplementary service not described by TISPAN . 19g38.4.1 Service interactions with other supplementary services . 19g3ETSI ETSI TR 122 973 V14
21、.0.0 (2017-03)43GPP TR 22.973 version 14.0.0 Release 149 Conclusion 20g3Annex A: Change history 21g3History 22g3ETSI ETSI TR 122 973 V14.0.0 (2017-03)53GPP TR 22.973 version 14.0.0 Release 14Foreword This Technical Report (TR) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The
22、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 release date and an increase in version number as f
23、ollows: 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. technical enhancements, corrections, updates, e
24、tc. z the third digit is incremented when editorial only changes have been incorporated in the document. Introduction In addition to reusing the IMS system as defined by 3GPP, TISPAN is defining an IMS based Multimedia Telephony service, which is an evolution of the CS based Telephony service provid
25、ed by traditional ISDNs and PSTNs 2. A similar service, defined by 3GPP, is needed for wireless access to IMS, in order to be able to define services to the end-users, and to support interoperability in multi-vendor and multi-operator environment and to provide the user with the same experience acro
26、ss the different IP based accesses and domains ETSI ETSI TR 122 973 V14.0.0 (2017-03)63GPP TR 22.973 version 14.0.0 Release 141 Scope This Technical Report defines the IMS Multimedia Telephony service and associated supplementary services for IMS. It aims to take account and build on the IMS capabil
27、ities already provided in 3GPP Release 5 and Release 6. The objective is to define the minimum set of capabilities required in the IP Multimedia Subsystem to secure multi-vendor and multi-operator inter-operability for the IMS Multimedia Telephony service and related Supplementary Services. Close co
28、operation shall be sought with TISPAN. TISPAN requirements, as captured in 2, will be taken into account, and referred to where appropriate. While the user experience for the IMS Multimedia Telephony service is expected to have some similarity to existing telephony services, the richer capabilities
29、of IMS will be exploited. 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, version number, etc.) or non-specific. For a spec
30、ific 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 document in the same Release as the present
31、document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 ETSI TS 181 002: “ Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Multimedia Telephony with PSTN/ISDN simulation services“, version 1.1.1. 3 ETSI TS 181 001: “Telecommunications an
32、d Internet converged Services and Protocols for Advanced Networking (TISPAN); Videotelephony over NGN; Stage 1 service description“. 4 3GPP TS 22.228: “Service requirements for the Internet Protocol (IP) multimedia core network subsystem (IMS); Stage 1“. 5 3GPP TR 23.816: “Identification of communic
33、ation services in IMS“. Note: Reference 5 is an internal report to 3GPP, available via http:/www.3gpp.org/ftp/Specs/html-info/23816.htm 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in TR 21.905 1 and the following
34、apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 1. (none) ETSI ETSI TR 122 973 V14.0.0 (2017-03)73GPP TR 22.973 version 14.0.0 Release 143.2 Abbreviations For the purposes of the present document, the abbreviations given in TR
35、 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 TR 21.905 1. (none) 4 Service description 4.1 General service characteristics The IMS Multimedia Telephony service should allow multimedia conv
36、ersational communications between two or more users. It provides real time bidirectional conversational transfer of speech, video or optionally other types of data. The IMS Multimedia Telephony service is point to point between terminals communicating , or a terminal and a network entity. This commu
37、nication is usually symmetrical, but in special cases the media components present in each direction may be different, or they may be the same but with different bit rates and Quality of Service. An IMS Multimedia Telephony service can start with only one type of media and additional types of media
38、may or may not be added by the users as the communication progress. Therefore a particular IMS Multimedia Telephony service may consist of only one type of media, e.g. speech. The IMS Multimedia Telephony service is different from other IMS based services, such as Push to Talk over Cellular (PoC). I
39、ts characteristics includes the following: - IMS Multimedia Telephony is a service where speech, and speech combined with other media components, is the typical usage but the service is not limited to always include speech, it also caters for other media or combinations of media (e.g. text and video
40、). - The IMS Multimedia Telephony service includes supplementary services. The behaviour of supplementary services is almost identical to supplementary services for CS voice (TS 11) Note: Most supplementary services are active in the set-up phase. Mid session supplementary services such as session t
41、ransfer and session hold exist. - The anticipated usage model is that of traditional telephony: one user connecting to any other user, regardless of operator and access technology 4.2 Default media handling capabilities of the IMS Multimedia Telephony service The IMS Multimedia Telephony service can
42、 support many different types of media and the default set of capabilities include the following: - Full duplex speech - Real time video (simplex, full duplex), synchronized with speech if present. - Text communication - File transfer, - Video clip sharing, picture sharing, audio clip sharing. Trans
43、ferred files may be displayed/replayed on receiving terminal for specified file formats. At least one common standardized format (e.g. JPEG, AMR) shall be supported per media type. The IMS Multimedia Telephony service should at least support the following handling of media ETSI ETSI TR 122 973 V14.0
44、.0 (2017-03)83GPP TR 22.973 version 14.0.0 Release 14- Adding and removing individual media to/from a IMS Multimedia Telephony communication 5 Service requirements General service requirements as specified for IMS services in 4 apply. 6 Quality of Service (QoS) General QoS requirements as specified
45、for IMS services in 4 apply. 7 Interworking considerations 7.1 Interworking with CS domain Standardisation of interworking between the IMS domain and the CS domain for multimedia telephony communications is provided as specified in 4. 7.2 Interworking with external networks General interworking requ
46、irements with external networks as specified for IMS services in 4 apply. 8 Supplementary services 8.1 Background 8.1.1 General considerations on supplementary services in IMS With the specification of the IP Multimedia Subsystem (IMS see 4) 3GPP has created a basis for flexible deployment of a mult
47、itude of IP based services. In contrast to GSM, which defined a set of bearer- and teleservices that were complemented by a number of supplementary services, 3GPP did not pursue that but rather specified “IP multimedia sessions“ within the concept of IMS. 8.1.2 IMS services An “IP multimedia session
48、“ could carry any combination of media (voice, video, text ) and the services, that make use of these IMS sessions, need not be standardised. However, in the last years non-3GPP standardisation bodies like the Open Mobile Alliance (OMA) have created standards for several IMS based services (e.g. PoC
49、, “Presence Simple“ and others) The user primarily distinguishes, understands and experiences these services, not the sessions therein. For example, PoC may set up a session, that transports voice in just the same way as a IMS Multimedia Telephony service would, but for the user these are two different services. 8.1.3 Supplementary services The user may handle supplementary services to the examples given above differently (e.g. he may choose to hide his identity in the PoC chat group while still providing it in a IP Multimedia tel
