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    ITU-T J 366 2-2010 IPCablecom2 IP Multimedia Subsystem (IMS) Session handling C IM call model C Stage 2 specification (Study Group 9)《有线互联网标准2(IPCablecom2)IP多媒体子系统(IMS) 会话处理 IP多媒体呼.pdf

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    ITU-T J 366 2-2010 IPCablecom2 IP Multimedia Subsystem (IMS) Session handling C IM call model C Stage 2 specification (Study Group 9)《有线互联网标准2(IPCablecom2)IP多媒体子系统(IMS) 会话处理 IP多媒体呼.pdf

    1、 International Telecommunication Union ITU-T J.366.2TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (08/2010) SERIES J: CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA SIGNALS IPCablecom IPCablecom2 IP Multimedia Subsystem (IMS): Session handling IM call model Sta

    2、ge 2 specification Recommendation ITU-T J.366.2 Rec. ITU-T J.366.2 (08/2010) i Recommendation ITU-T J.366.2 IPCablecom2 IP Multimedia Subsystem (IMS): Session handling IM call model Stage 2 specification Summary Recommendation ITU-T J.366.2 specifies the IP multimedia (IM) call model for handling of

    3、 an IP multimedia session origination and termination for an IP multimedia subscriber. It includes interactions between an application server and IP multimedia sessions. Recommendation ITU-T J.366.2 references the ETSI version of the 3GPP specification (ETSI TS 123 218 V6.3.0 (2005-03) and specifies

    4、 only the modifications necessary to optimize it for the cable environment. Additions are shown in blue underline and deletions in red strikethrough. History Edition Recommendation Approval Study Group 1.0 ITU-T J.366.2 2010-08-29 9 ii Rec. ITU-T J.366.2 (08/2010) FOREWORD The International Telecomm

    5、unication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tarif

    6、f questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommen

    7、dations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommenda

    8、tion, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g., interoperabilit

    9、y or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that complia

    10、nce with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity o

    11、r applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required t

    12、o implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2010 All rights reserved. No part of this publication may be reproduced, by

    13、 any means whatsoever, without the prior written permission of ITU. Rec. ITU-T J.366.2 (08/2010) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Definitions and abbreviations . 1 3.1 Definitions 1 3.2 Abbreviations . 1 4 Architecture and information flows for IM multimedia session 2 5 Functional requi

    14、rements of network entities 2 6 Functional requirements of serving CSCF . 2 6.1 Modes of operation of the S-CSCF 2 6.2 Interfaces defined for S-CSCF . 2 6.3 Handling of SIP registration . 2 6.4 Handling of mobile originating requests 2 6.5 Handling of mobile terminating requests . 2 6.6 Handling of

    15、IP multimedia session release requests 2 6.7 Handling of subscription and notification 2 6.8 S-CSCF handling IMS charging . 3 6.9 Description of subscriber data 3 Rec. ITU-T J.366.2 (08/2010) 1 Recommendation ITU-T J.366.2 IPCablecom2 IP Multimedia Subsystem (IMS): Session handling IM call model Sta

    16、ge 2 specification 1 Scope This Recommendation specifies the IP multimedia (IM) call model for handling of an IP multimedia session origination and termination for an IP multimedia subscriber. It includes interactions between an application server and IP multimedia sessions. The Third Generation Par

    17、tnership Project (3GPP) has developed the specification in a form optimized for the wireless environment. This Recommendation references the ETSI version of the 3GPP specification and specifies only the modifications necessary to optimize it for the cable environment. Additions are shown in blue und

    18、erline and deletions in red strikethrough. It is an important objective of this work that interoperability between IPCablecom 2.0 and 3GPP IMS is provided. IPCablecom 2.0 is based upon 3GPP IMS, but includes additional functionality necessary to meet the requirements of cable operators. Recognizing

    19、developing converged solutions for wireless, wireline and cable, it is expected that further development of IPCablecom 2.0 will continue to monitor and contribute to IMS developments in 3GPP, with the aim of alignment of 3GPP IMS and IPCablecom 2.0. Because this Recommendation indicates modification

    20、s from the ETSI specification ETSI TS 123 218, the structure of the Recommendation does not follow normal ITU-T practice so as to ease the task of the reader to correlate the three documents. The modifications to ETSI TS 123 218 are listed below. 2 References 22 IETF RFC 5627 (2009), Obtaining and U

    21、sing Globally Routable User Agent URIs (GRUUs) in the Session Initiation Protocol (SIP). 23 IETF RFC 5628 (2009), Registration Event Package Extension for Session Initiation Protocol (SIP) Globally Routable User Agent URIs (GRUUs). ETSI TS 123 218 ETSI TS 123 218 V6.3.0 (2005-03), Multimedia (IM) se

    22、ssion handling; IM call model. 3 Definitions and abbreviations 3.1 Definitions 3.2 Abbreviations GRUU Globally Routable User Agent URI TSG Technical Specification Group 2 Rec. ITU-T J.366.2 (08/2010) 4 Architecture and information flows for IM multimedia session 5 Functional requirements of network

    23、entities 6 Functional requirements of serving CSCF 6.1 Modes of operation of the S-CSCF 6.2 Interfaces defined for S-CSCF 6.3 Handling of SIP registration Figure 6.3.1 S-CSCF handling registration Application Servers can in addition subscribe to the S-CSCF Registration Event Package. This provides a

    24、 mechanism for the Application Server to discover all the implicitly registered public user identities without requiring multiple Register requests to be sent to the Application Server and to obtain the current capabilities of the UE as well as be notified about refresh registrations and de-registra

    25、tions. It also provides a mechanism for the UE to learn the GRUU it should use for each implicitly registered public identity. (GRUU is described in 22.) The S-CSCF will send NOTIFY requests to the Application Server that has subscribed to the registration event package for the registered public use

    26、r identity. NOTE When the Application Server maintains a persistent subscription to the reg-event package it is not necessary for the Application Server to receive third party registration requests from the S-CSCF in response to refresh and de-registration events as these are communicated to the App

    27、lication Server in the Registration event notifications. 6.4 Handling of mobile originating requests 6.5 Handling of mobile terminating requests The destination address of a terminating request may designate either a Public User Identity or a GRUU associated with a particular Public User Identity. I

    28、f the destination address is a GRUU, the S-CSCF shall determine the corresponding Public User Identity and use it in what follows. 6.6 Handling of IP multimedia session release requests 6.7 Handling of subscription and notification The S-CSCF supports subscription to and notification of user registr

    29、ation events by the UE, P-CSCFs and Application Servers using the mechanisms specified in IETF RFC 3265 13 and Rec. ITU-T J.366.2 (08/2010) 3 extended by 23. The subscribing entity may subscribe to the registration state of individual public user identities for the purpose of discovering the implici

    30、tly registered public user identities and the associated GRUUs. When notifying a subscribing entity of a change in the registration state of a subscribed to public user identity the S-CSCF shall include in the notification all the implicitly registered public user identities associated with the regi

    31、stered public user identity in addition to the registered public user identity. With each identity, it will include the associated GRUUs, if any. S-CSCFApplication Server SUBSCRIBESIP Dialog #1From: X To: Y Call-ID: ZNOTIFY SIP Dialog #1From: X To: Y Call-ID: Z Figure 6.7.1 Application Server S-CSCF

    32、 subscribe notify dialog 6.8 S-CSCF handling IMS charging 6.9 Description of subscriber data No changes to the remainder of the document. Printed in Switzerland Geneva, 2010 SERIES OF ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Series D General tariff principles Series E Overall

    33、 network operation, telephone service, service operation and human factors Series F Non-telephone telecommunication services Series G Transmission systems and media, digital systems and networks Series H Audiovisual and multimedia systems Series I Integrated services digital network Series J Cable n

    34、etworks and transmission of television, sound programme and other multimedia signals Series K Protection against interference Series L Construction, installation and protection of cables and other elements of outside plant Series M Telecommunication management, including TMN and network maintenance

    35、Series N Maintenance: international sound programme and television transmission circuits Series O Specifications of measuring equipment Series P Terminals and subjective and objective assessment methods Series Q Switching and signalling Series R Telegraph transmission Series S Telegraph services ter

    36、minal equipment Series T Terminals for telematic services Series U Telegraph switching Series V Data communication over the telephone network Series X Data networks, open system communications and security Series Y Global information infrastructure, Internet protocol aspects and next-generation networks Series Z Languages and general software aspects for telecommunication systems


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