1、INTERNATIONAL TELECOMMUNICATION UNION ITUIT TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU SERIES I: INTEGRATED SERVICES DIGITAL NETWORK General structure - Terminology 1.113 (06/97) Vocabulary of terms for broadband aspects of ISDN ITU-T Recommendation I. 1 13 (Previously CCITT Recommendation) COP
2、YRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesITU-T I-SERIES RECOMMENDATIONS INTEGRATED SERVICES DIGITAL NETWORK ;ENERAL STRUCTURE Te Description of ISDNs General modelling methods Telecommunication network and service attributes General
3、 description of asynchronous transfer mode Scope General aspects of services in ISDN Common aspects of services in the ISDN Bearer services supported by an ISDN Teleservices supported by an ISDN Supplementary services in ISDN Network functional principles Reference models Numbering, addressing and r
4、outing Connection types Performance objectives Protocol layer requirements General network requirements and functions Application of I-series Recommendations to ISDN user-network interfaces Layer 1 Recommendations Layer 2 Recommendations Layer 3 Recommendations Multiplexing, rate adaption and suppor
5、t of existing interfaces Aspects of ISDN affecting terminal requirements SERVICE CAPABILITIES 3VERALL NETWORK ASPECTS AND FUNCTIONS ISDN USER-NETWORK INTERFACES INTERNETWORK INTERFACES MAINTENANCE PRINCIPLES B-ISDN EQUIPMENT ASPECTS ATM equipment Management of ATM equipment I. 100-1.199 1.110.119 1.
6、120-1.1 29 1.1 30-1.1 39 I. 140-1.149 I. 150-1.199 1.200-1.299 1.200-1.209 1.21 0-1.2 19 1.220-1.229 1.230-1.239 1.240-1.249 1.250-1.299 1,300-1.399 1.310-1.319 I .320-1.329 1.330-1.339 1,340-1.349 I .350-1.359 1.360-1.369 I, 3704.399 1.400-1.499 1.420-1.429 1.430-1.439 1.440-1.449 1,450-1.459 I .46
7、0-1.469 1.470-1.499 1.500-1.599 1.600-1.699 I .700-1.799 I .730-l. 749 1.750-1.799 For further details, please refer to ITU-T List of Recommendations. COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesITU-T RECOMMENDATION 1.113 VOCABULARY
8、 OF TERMS FOR BROADBAND ASPECTS OF ISDN Summary Recommendation 1.1 13, Vocabulary of terms for broadband aspects of ISDN, has been revised during this study period, New terms have been added. All the terms are now classified into a logical order instead of an alphabetical one and are split into eigh
9、t subclauses: Subclause Subclause Subclause Subclause Subclause Subclause Subclause Subclause Source 2.1: 2.2: 2.3: 2.4: 2.5: 2.6: 2.7: 2.8: Services Transfer modes Interfaces Channels Transport network structure Operation and maintenance Traffic and resource management Quality of service ITU-T Reco
10、mmendation 1.1 13 was revised by ITU-T Study Group 13 (1997-2000) and was approved under the WTSC Resolution No. 1 procedure on the 20th of June 1997. COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling Services STDeITU-T RECMN I.LL3-ENGL 1777 1i8b
11、2.571 063b828 921 FOREWORD ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of the ITU. The ITU-T is responsible for studying technical, operating and
12、 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, establishes the topics for study by the ITU-T Study Groups which, in their turn, pr
13、oduce Recommendations on these topics. The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in WTSC Resolution No. 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis w
14、ith IS0 and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS The ITU draws attention to the possibility that the practice or implementation of
15、this Recommendation may involve the use of a claimed Intellectual Property Right. The ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of t
16、he date of approval of this Recommendation, the ITU had/had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information and are therefore strongly ur
17、ged to consult the TSB patent database. O ITU 1997 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. II Recommendation 1.113 (06/97) -
18、 COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling Services1 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 CONTENTS Introduction Vocabulary of terms . Services . Transfer modes . Interfaces Channels . Transport network stnicture Operation and maintenance Tra
19、ffic and resource management Quality of service Annex A . Alphabetical list of terms contained in this Recommendation Annex B . List of abbreviations used in B-ISDN Recommendations Recommendation 1.113 (06197) Page 1 1 1 5 6 10 12 15 18 19 20 23 . 111 COPYRIGHT International Telecommunications Union
20、/ITU TelecommunicationsLicensed by Information Handling ServicesRecommendation 1.1 13 VOCABULARY OF TERMS FOR BROADBAND ASPECTS OF ISDN (revised in 1997) 1 Introduction This Recommendation consists primarily of those terms and definitions that are considered essential to the understanding and applic
21、ation of the principles of broadband aspects of the integrated services digital network (B-ISDN). They are not exclusive to B-ISDN and are recommended also for application, in so far as they are relevant, to other types of telecommunication networks. Included are terms that may already be defined in
22、 other ITU-TATU-R Recommendations. However, the definitions given here embrace only the essential concepts and on that basis it is considered that they are not inconsistent with the more specialized definitions that appear in those Recommendations. According to the conventions applied in this Recomm
23、endation, any term in common usage, but whose use is deprecated, is shown in brackets as in the following example: “broadband wideband“. Where a truncated term is widely used in an understood context the complete term is quoted following the colloquial form, for example, “contribution, contribution
24、application“. Some definitions include terms in italics face to indicate that these terms are defined elsewhere in this Recommendation. Annex A contains an alphabetical list of all the terms contained in this Recommendation. Annex B contains a list of abbreviations which are used in B-ISDN Recommend
25、ations. 2 Vocabulary of terms This clause is divided into subclauses. Within each subclause the terms are listed and defined. 2.1 Services 101 broadband wideband F: large bande S: banda ancha Qualifying a service or system requiring transmission channels capable of supporting rates greater than the
26、primary rate. 102 service bit rate F: dbit de service S: velocidad binaria de servicio The bit rate which is available to a user for the transfer of user information. Recommendation 1.113 (06/97) 1 COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handlin
27、g ServicesSTD-ITU-T RECMN 1.123-ENGL 1797 48b2591 Ob3b831 41b 103 constant bit rate service F: service dbit constant S: servicio de velocidad binaria constante A type of telecommunication service characterized by a service bit rate specified by a constant value. 104 variable bit rate service F: serv
28、ice dbit variable S: servicio de velocidad binaria variable A type of telecommunication service characterized by a service bit rate specified by statistically expressed parameters which allow the bit rate to vary within defined limits. 105 connectionless service F: service sans connexion S: servicio
29、 sin conexin A service which allows the transfer of information among service users without the need for end-to- end call establishment procedures. NOTE - Connectionless services may be used to support both interactive and distribution services. 106 mixed document F: document mixte S: documento mixt
30、o A document that may contain text, graphics, data, image and moving picture information as well as voice annotation. 107 multimedia service F: service multimdia S: servicio multimedia; servicio multimedios A service in which the interchanged information consists of more than one type, such as text,
31、 graphics, sound, image and video. 108 broadcast F: diffusion S: difusin A value of the service attribute “communication configuration“, which denotes unidirectional transmission to all users. NOTE - This term should not be confused with the term “broadcasting service“ as defined in the ITU Radio Re
32、gulations. 109 multipoint F: multipoint S: multipunto A value of the attribute “communication configuration“ which denotes that the communication involves more than two network terminations. 2 Recommendation 1.1 13 (06/97) COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicens
33、ed by Information Handling Services STD-ITU-T RECMN I.LL3-ENGL 1997 = 48b259L Ob3b832 352 110 distribution; distribution application F: distribution; application de distribution S: distribucin; aplicacin de distribucin Use of a broadband service or channel for transferring audio, video or other info
34、rmation to a user or a number of users who will not be expected to apply post-production processing to the information. 111 contribution; contribution application F: contribution; application de contribution S: contribucin; aplicacin de contribucin Use of a broadband service or channel for transferr
35、ing audio or video information to a user for further post-production processing and subsequent distribution. 112 post-production processing F: postproduction; traitement aprs production S: tratamiento de posproduccin Further processing of contributed audio and video information, to change the form o
36、r presentation of the information prior to its final utilization. 113 interactive service F: service interactif S: servicio interactivo A service which provides the means for bidirectional exchange of information between users or between users and hosts. Interactive services are subdivided into thre
37、e classes of services: conversational services, messaging services and retrieval services. 114 conversational service F: service conversationnel S: servicio conversacional An interactive service which provides for bidirectional communication by means of real-time (no store-and-forward) end-to-end in
38、formation transfer from user to user. 115 messaging service; message handling service F: service de messagerie; service de traitement de messages S: servicio de mensajera; servicio de tratamiento de mensajes An interactive service which offers user-to-user communication between individual users via
39、storage units with store-and-forward, mailbox and/or message handling, (e.g. information editing, processing and conversion) functions. 116 videomessaging F: vido messagerie S: videomensajera A messaging service for the transfer for moving pictures with or without other information. Recommendation 1
40、.113 (06/97) 3 COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesSTD-ITU-T RECMN ImLL3-ENGL L777 4b259L b3b33 299 m 117 retrieval service F: service de consultation S: servicio de consulta An interactive service which provides the capabil
41、ity of accessing information stored in database centres. This information will be sent to the user on demand only. The information can be retrieved on an individual basis, i.e. the time at which an information sequence is to start is under the control of the user. 118 sound retrieval service F: serv
42、ice de consultation de programmes sonores S: servicio de consulta de programas sonoros A service for on-demand (user initiated) retrieval of music and other audio information. 119 distribution service F: service de distribution S: servicio de distribucin Service characterized by the unidirectional f
43、low of information from a given point in the network to other (multiple) locations. Distribution services are subdivided into two classes: distribution services without user individual presentation control and distribution services with user individual presentation control. 120 distribution service
44、with user individual presentation control F: service de distribution avec commande de prsentation par lutilisateur S: servicio de distribucin con control de la presentacin por el usuario A distribution service in which the information is provided as a sequence of information entities, e.g. frames wi
45、th cyclical repetition, so that the user has the ability to select individual information entities and can control the start and order of the presentation of the information. 121 distribution service without user individual presentation control F: service de distribution sans commande de prsentation
46、 par lutilisateur S: servicio de distribucin sin control de la presentacih por el usuario A distribution service which users can access without having any control over the start and order of the presentation of the distributed information. 122 existing-quality television F: tlvision de qualit normal
47、e S: televisin de calidad convencional Television as defined in conventional 625-line and 525-line television standards, such as NTSC, PAL and SECAM. 123 enhanced-quality television F: tlvision de qualit amliore S: televisin de calidad mejorada Television of quality superior to existing-quality tele
48、vision, but less than the quality of high- definition television. 4 Recommendation 1.113 (06/97) COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesSTD-ITU-T RECMN I-LL3-ENGL 1997 48b2591 Ob3b834 125 W 2.2 Transfer modes 201 transfer mode
49、F: mode de transfert S: modo de transferencia The whole of the aspects covering transmission, multiplexing and switching in a telecommunications network. 202 asynchronous time-division multiplexing F: multiplexage temporel asynchrone S: multiplexin asncrona por divisin en el tiempo; multiplexibn temporal asncrona A multiplexing technique in which a transmission capability is organized in undedicated slots filled with labelled cells with respect to each applications instantaneous real need. In this case, the terminal equipment (i.e. the
