1、CCITT RECMN*Ie373 73 YB62591 0580750 b95 W INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU 1.373 (03/93) INTEGRATED SERVICES DIGITAL NETWORK (ISDN) OVERALL NETWORK ASPECTS AND FUNCTIONS NETWORK CAPABILITIES TO SUPPORT UNIVERSAL PERSONAL TELECOMMUNICATION (
2、UPT) ITU-T Recommendation 1.373 (Previously “CCIlT Recommendation”) CCITT RECMN*I-3?3 93 I 4862593 0580753 523 FOREWORD The IT Telecommunication Standardization Sector (IT-T) is a permanent organ of the International Telecom- munication Union. The IT-T is responsible for studying technical, operatin
3、g and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, established the topics for study by the ITU-T Study Groups which, in their tum
4、, produce Recommendations on these topics. IT-T Recommendation 1.373 was prepared by the IT-T Study Group XVIII (1988-1993) and was approved by the WTSC (Helsinki, March 1-12, 1993). NOTES 1 As a consequence of a reform process within the International Telecommunication Union (IT), the CCIT ceased t
5、o exist as of 28 February 1993. In its place, the IT Telecommunication Standardization Sector (IT-T) was created as of 1 March 1993. Similarly, in this reform process, the CCIR and the IFRB have been replaced by the Radiocommunication Sector. In order not to delay publication of this Recommendation,
6、 no change has been made in the text to references containing the acronyms “CCITT, CCIR or IFRl3” or their associated entities such as Plenary Assembly, Secretariat, etc. Future editions of this Recommendation will contain the proper terminology related to the new ITU structure. 2 telecommunication
7、administration and a recognized operating agency. In this Recommendation, the expression “Administration” is used for conciseness to indicate both a O ITU 1993 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, includ
8、ing photocopying and microfilm, without permission in writing from the ITU. S . CONTENTS o scope . 1 Introduction . 2 Terms and definitions (provisional) . 3 Objectives of UPT service 4 Functional requirements 5 Functional architecture 5.1 UPT functional grouping . 5.1.1 General 5.1.2 UPT specific f
9、unctionalities . UPT call reference model Interactions among UPT capabilities . Relationship between personal mobility management and terminal mobility management . Relationship to the intelligent network 6 Network capabilities 6.1 Generic capabilities . 6.2 Specific network capabilities . 6.3 Netwo
10、rk capabilities for services interaction 5.2 5.3 5.4 5.5 Appendix I - Definition of UPT terms and list of abbreviations and acronyms Appendix II - Additional UPT Cali Flow examples Appendix III - Some multi-network scenarios for UPT . Scenario 2 - Call handling within ISDN . Scenario 3 - Call handli
11、ng across multiple networks . III . 1 111.2 111.3 Scenario 1 - Cail handling within PSTN . Page 1 1 1 1 2 2 2 2 3 5 7 7 7 9 9 9 10 12 13 15 15 15 16 Recommendation 1.373 (03D3) i CCITT RECMNtI-373 93 486259ii 0580753 3T4 W Recommendation I373 NETWORK CAPABILITIES TO SUPPORT UNIVERSAL PERSONAL TELECO
12、MMUNICATION (UPT) (Helsinki, 1993) O Scope This Recommendation identifies the functional requirements and network architectures, and specifies the network capabilities to support universal personal telecommunication (UPT), specifically for the provision of a wide range of services to the UPT users i
13、n a multi-network communication environment. This Recommendation should be read in conjunction with the foilowing draft Recommendations: a) b) c) d) e) f) 1.1 14 (Vocabulary for UPT); 1.3 12 (Principles of intelligent network architecture); 1.328 (Service plane architecture / IN); 1.329 (Global func
14、tional plane architecture / IN); F.850 (Principles of universal personal telecommunication / WT); E.168 (Application of E.164 numbering plan for Um). 1 Introduction Leading edge technology and network developments are providing new dimensions to users telecommunication capabilities as ISDN, intellig
15、ent networks (IN) and digital mobile networks are introduced. This is expected to provide increased service flexibility together with a complementary level of customer control capability to support network services. Despite these advances each of these developments independently still use the line o
16、r the terminal identification as a means of identifying the customer. By pursuing the inherent synergy among ISDN, digitai mobile and intelligent network developments, the historical link between the line or terminal and user identification can be broken. Universal personal telecommunication is anti
17、cipated to bring personal identification to reality by transparently replacing the static relationship between terminal identity and user identity in existing networks with a dynamic association and thus provide complete personal mobility within networks and across multiple networks. 2 Terms and def
18、initions (provisional) A complete set of definitions for WT terms is contained in Recommendation 1.114; a subset is provided for ready reference in Appendix I together with a list of abbreviations and acronyms. 3 Objectives of UPT service WT enables access to telecommunication services by providing
19、personal mobility. It enables each UPT user to participate in a user-defined set of subscribed services and to initiate and receive calls on the basis of a personal network transparent) UPT number across multiple networks, at any terminal, fured or mobile, irrespective of the geographical location,
20、limited only by terminal and network capabilities and restrictions imposed by the network operator. ) A user identification is said to be network transparent when the user does not actuaily need to know where the UPT data base is located. Transparency includes the case where network independent user
21、 identification is used. Recommendation 1.373 (03/93) 1 CCITT RECMN*I.37J 93 m 486259L 0580754 230 m ne aim of UPT is to provide user-to-user telecommunication services with: a) user identification which is terminal- and network-transparent and is based on a UPT number where a UPT number is assigned
22、 to every user. Ideally, a UPT user will have one UPT number with multiple des (e.g. passwords, priority codes) for different applications. (For further study); personai call management which enables UPT users to control the destination address for ail incoming calls based on the identity of the cai
23、ler, the basic telecommunication service type, the call urgency, time of day; etc. charging on the basis of the UPT number instead of the terminal identity; service availability/accessibiiity across multiple networks (e.g. ISDNPSTN, PSPDN, PLMN) and at different terminal types (fixed or mobile); use
24、r and customer control of the users service profile and personalization of terminal configuration; network and access security, confidentiality of user information through UPT user authentication. b) c) d) e) f) 4 Functional requirements The following network functionalities required for UFT were id
25、entified using Recommendation F.850 (“Principles of universal personal telecommunication - UW) as a general guideline: TJPT number recognition and translation; a) b) user registration/deregistration; c) user authentication; d) charging; e) personalization of terminal access configuration; f) service
26、 profile management; g) h) recognition of user request to access to UPT service; functionaiities for operation and maintenance (OAM). 5 Functional architecture 5.1 UPT functional grouping Whereas the concept of terminal mobility is currently evolving through miniaturization of personal communicators
27、 and advances in wireless technologies, the UPT represents a more fundamental and wider concept of personal mobility. However, the wireless component of the access and transport arrangements will be an important and integral part of the evolving networks, so that a reference architecture model for P
28、T that can provide an integrated view is required. The UPT functional grouping, shown in Figure 1, provides a logical partitioning of the major functionalities to support UPT while ensuring that the different access and transport arrangements implicit within the UPT concept can be properly reflected
29、. 5.1.1 General Generic access functions Access functions include both wireline as well as wireless access types (e.g. mobile and personal stations and associated terminai functions in FPLMTS and PLMN). Thus, the continuous mobility available through the evolving wireless systems is fully reflected
30、in this functional grouping. 2 Recommendation 1.373 (03/93) / UPT management functions / / UPT intelligencefunctions / Generic kmsport functions Genetic access functiors TI 81 5QCO-92iDOl FIGURE 1L.373 UPT functional grouping Generic transport2) functions Transport functions include transmission and
31、 local and transit switching functionalities (including wireless network components). UPT service-access functions UPT service-access functions provide the service recognition and the connectivity into the WT service through the existing (and evolving) PSTNASDN infmtructure including the infrastruct
32、ure associated with a specific type of access (e.g. the base stations and mobile services switching centres in FPLMTS and PLMN). UPT intelligence functions UPT intelligence functions contain the information (data bases) and functionaiities to manage the mobility and cail management requirements of U
33、PT and to support the registration, authentication, security, call routing and establishment functions. UPT management functions UPT management functions maintain the network and service related data (maintenance, operations, charging) and provide full operations support system (OSS) functionalities
34、 for UPT. 5.1.2 UPT specific functionalities 5.1.2.1 UPT service-access functions a) Service access recognition Service access recognition is initiated by a UPT specific procedure or a UPT number (depending on a dialling plan), a UPT procedure request (including registration procedure) or an outgoin
35、g cali request recognition. 2, Transport is defined as the functional process of transfemng information between points at different locations. Recommendation 1.373 (03/93) 3 CCITT RECMNJI-373 93 4862591 058075b 003 m b) User interaction Coilect information (e.g. information for UPT user authenticati
36、on) from a UPT user, and send information to a UPT user, through in-channel signalling or out-channel signalling (e.g. D-channel signalling), and pass it to the UPT intelligence functions, if required. c) Authorization of user access Authorize user access without accessing user service profile (e.g.
37、 use of an intelligent card). Personalization of terminal access configuration AUow a UPT user to use specific terminal access configuration, such as abbreviated dialling, feature key assignment, but it may depend on the situation, for example, request of the UPT user. d) e) Routing information hand
38、ling In a registration procedure, this function passes appropriate routing information, such as a routing address, to UPT intelligence functions. To complete an incoming call, it receives appropriate routing information from UPT intelligence functions. 5.1.2.2 UPT intelligence functions Authenticati
39、on and validation of user Authenticate and validate user on the basis of information exchange, accessing user service profile data. Service request validation Verify that the requested services are available in relation to the service profile and the capabilities of the network and terminal. User an
40、d service information request Obtain user and service information from service profile. Determination of call charging Determine charging according to service condition such as the terminating UPT users current location. UPT number translation Translate a UPT number to a routing address (in accordan
41、ce with call management defined by a UPT user). Call handling Send instructions to the UPT service-access functions and receive information from them for further instructions to maintain a U“ ca. Registration information storage Store registration information in the service profile such as terminal
42、address, a duration of call registration and number of calls. User/Subscriber review and modification of service profile Offer service profile review and modification to a UFT user, through telecommunication terminals utilizing “user interaction” in UPT service-access functions. 5.1.2.3 UP managemen
43、t functions a) b) c) processing of charging information. service profile management by the service provider; operation and maintenance (OAM) functions for UPT; 4 Recommendation 1.373 (03EJ3) CCITT RECMNxI-373 93 4862573 0580757 T4T W Originating neM-capability 5.2 UPT cail reference model A UPT call
44、 reference model is shown in Figure 2. This generic model illustrates the various network capabilities required for the completion of UPT calls. However, for a specific call, not all these connections are applicable. The specific network functions associated with each of the capabilities in the mode
45、l are identified in Table 1. An illustrative example is provided in Figure 3. Additional call flow examples are provided in Appendix II. Terminating nelwork-capability T181S910-2/DM NOTE - The specific network-capabilities are not intended to be hked to any part of the physical network. The network-
46、capabilities may be provided within one network or across multiple networks. FIGURE 2I.373 UPT Csn reference model The originating network-capability supports the UPT service-access interface for a user originating a call. This capability recognizes the type of action requested by the calling user (
47、e.g. dialed UPT number to cail a UPT user, Waccess code to involve Outcall, etc.) and interacts with the other capabilities to carry out that action. This capability may also authorize a calling UPT user locally if an intelligent access device is used by the UPT user. The calling UPT users service p
48、rofile control network-capability supports the UPT intelligence functions associated with a calling W users service profile. This capability validates the UPT users identity and requested action when a UPT user originates a call. This capability may be provided solely by the caling UPT users service
49、 provider or, by agreement, jointly with the originating UPT serving network3). The called PT users service profile control network-capability supports the UPT Intelligence functions associated with a called UPT users service profile. This capability determines the appropriate destination for a call to a called UPT user based on user-specific call management information. This capability may be provided solely by the called UPT users service provider or, by agreement, jointly with the originating UPT serving network. 3, A UFT serving network has UPT capabilities and
