1、INTERNATIONAL TELECOMMUNICATION UN ION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Q.2722.1 Amendment I (06/2 O0 O) SERIES Q: SWITCHING AND SIGNALLING Broadband ISDN - B-ISDN application protocols for the network s ig na I I i ng B-ISDN User Part - Network node interface specification for
2、point-to-multipoint callkonnection control Amendment 1 ITU-T Recommendation Q.2722.1 - Amendment I (Formerly CCITT Recommendation) ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN SPECIFICA
3、TIONS OF SIGNALLING SYSTEMS No. 4 AND No. 5 SPECIFICATIONS OF SIGNALLING SYSTEM No. 6 SPECIFICATIONS OF SIGNALLING SYSTEM R1 SPECIFICATIONS OF SIGNALLING SYSTEM R2 DIGITAL EXCHANGES INTERWORKING OF SIGNALLING SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 43 INTERFACE DIGITAL SUBSCRIBER SIGNALLIN
4、G SYSTEM No. 1 PUBLIC LAND MOBILE NETWORK INTERWORKING WITH SATELLITE MOBILE SYSTEMS INTELLIGENT NETWORK SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 BROADBAND ISDN INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS General aspects Signalling ATM ad
5、aptation layer (SAAL) Signalling network protocols Common aspects of B-ISDN application protocols for access signalling and network signalling and intenvorking B lication 01s for the rk signalling B-ISDN application protocols for access signalling Q. 1-4.3 Q.4-Q . 5 9 4.60-4.99 Q.100-Q.119 Q. 120-4.
6、249 4.250-4.309 4.3 10-4.399 4.400-4.499 4.500-4.599 4.600-4.699 4.700-4.799 Q.800-4.849 Q.SS(rQ.999 Q.1000-Q. 1099 Q.1100-Q.1199 Q.1200-4.1699 Q. 1700-4.1799 Q.2000-4.2999 4.2000-4.2099 Q.2100-4.2199 4.2200-4.2299 4.2600-4.2699 4.2700-Q.2899 Q.290CLQ.2999 For further details, please refer to the li
7、st of ITU-T Recommendations ITU-T Recommendation 4.2722.1 B-ISDN User Part - Network node interface specification for point-to-multipoint caWconnection control AMENDMENT 1 Summary ITU-T 4.2722.1 specifies the extensions to the Broadband ISDN User Part (B-ISUP) to support point-to-multipoint calllcon
8、nection control. This Amendment 1 to ITU-T 4.2722.1 has been prepared to enable the use of the modified B-ISUP assignment procedures together with the point-to-multipoint call/connection control. This amendment includes the additional procedures required to support the modified B-ISUP assignment pro
9、cedures. In addition it contains corrections of editorial errors identified in ITU-T Q.2722.1 since its first publication in 1996. Source Amendment 1 to ITU-T Recommendation Q.2722.1 was prepared by ITU-T Study Group 11 (1 997-2000) and approved under the WTSC Resolution 1 procedure on 15 June 2000.
10、 FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and
11、 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 turn, produce Recommendations on th
12、ese topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSC Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. NOTE In this Recommendation, the exp
13、ression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Inte
14、llectual Property Right. 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 the date of approval of this Recommendation, ITU had not recei
15、ved 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 urged to consult the TSB patent database. o ITU 2001 All rights reserve
16、d. 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 fi-om ITU. Introduction This Amendment 1 to ITU-T 4.2722.1 has been prepared to enable the use of the modified B-ISU
17、P assignment procedures together with the point-to-multipoint call/connection control. This amendment includes the additional procedures required to support the modified B-ISUP assignment procedures. In addition it contains corrections of editorial errors identified in ITU-T 4.2722.1 since its first
18、 publication in 1996. ITU-T Recommendation 4.2722.1 B-ISDN User Part - Network node interface specification for point-to-multipoint calyconnection control AMENDMENT 1 1) Replacements and additions a) Clause 1.2 Replace I .2 with the following: 1.2 References The following ITU-T Recommendations and o
19、ther references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; all users of this Recommendation are therefore enco
20、uraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. - - ITU-T 1.61 O (1999, B-ISDN operation and maintenance principles and functions. ITU-T 4.2
21、650 (1999), Interworking between Signalling System No. 7 broadband ISDN user part (B-ISUP) and Digital Subscriber Signalling System No. 2 (DSS2). ITU-T Q.2721.1 (1996), B-ISDN user part - Overview of the B-ISDN network node interface signalling capability set 2, step I. NOTE - The content of this Re
22、commendation was integrated into the “core“ set of B-ISDN user part Recommendations (4.2761 through 4.2764). ITU-T 4.2761 (1999), Functional description of the B-ISDN user part (B-ISUP) of Signalling System No. 7. ITU-T 4.2762 (1999), General functions of messages and signals of the B-ISDN user part
23、 (B-ISUP) of Signalling System No. 7. - - - - ITU-T 4.2763 (1 999), Signalling System No. 7 B-ISDN user part (B-ISUP) - Formats and codes. - ITU-T 4.2764 (1999), Signalling System No. 7 B-ISDN user part (B-ISUP) - Basic call procedures. - ITU-T Q.293 1 (1 999, Digital Subscriber Signalling System No
24、. 2 - User-Network Interface (UNO layer 3 specification for basic ea Wconnection control. ITU-T 4.2971 (1 999, Digital Subscriber Signalling System No. 2 - User-network interface layer 3 specification for point-to-multipoint caWconnection control. - b) Clause 2.2.1.1.1, item e) Replace item e) with
25、the following: e) Set - Up request primitive - issued by the non-assigning exchange Option 1 With regard to the issuing of the Set-up request primitive by the non-assigning exchange, the same procedures as for the assigning exchange are applicable, with the exception that the connection element iden
26、tifier shall not be included in the Set-up request primitive. Option 2 With regard to the issuing of the Set-up request primitive by the non-assigning exchange, the same procedures as for the assigning exchange are applicable, with the exception that the Exclusive connection element identifier param
27、eter shall be included in the Set-up request primitive instead of the Connection element identifier parameter. c) Clause 2.2.1.1.2.1 Replace 2.2, I. I .2. I with the following: 2.2.1.1.2.1 Incoming side of the exchange 4 Assigning exchange Option 1 After having received a Set-up indication primitive
28、, an incoming connection link object instance shall be created. An assigning exchange shall perform the assignment procedure for VPCWCI and bandwidth as described in 2.1.2.2 b)/Q.2764. If this is successful the Incoming-Resources- Accepted request primitive shall be issued immediately. The Incoming
29、Resources - Accepted request primitive shall include the mandatory parameters listed in Table 2-4, including the origination connection link identifier and connection element identifier parameters. Option 2 After having received a Set-up indication primitive, an incoming connection link object insta
30、nce shall be created. An assigning exchange shall perform the assignment procedure as described in 2.1.2.2 b)/Q.2764. If this is successful the Incoming-Resources Accepted request primitive shall be issued immediately. The Incoming-Resources-Accepted request primitive shall include the mandatory par
31、ameters listed in Table 2-4, including the origination connection link identifier and connection element identifier parameters. b) Non -assigning exch ange Option 1 After having received a Set-up Indication primitive an incoming connection link object instance shall be created. A non-assigning excha
32、nge shall issue the Incoming-Resources-Accepted request primitive immediately. The Incoming Resources-Accepted request primitive shall include the mandatory parameters listed in Table 2-4, without the connection element identifier parameter but containing the assigned origination connection link ide
33、ntifier parameter. Option 2 After having received a Set-up Indication primitive an incoming connection link object instance shall be created. A non-assigning exchange shall perform the assignment procedure as described in 2.1.2.2 a)/Q.2764. If this is successful the Incoming - Resources Accepted req
34、uest primitive shall be issued immediately. The Incoming-Resources-Accepted request primitive shall include the mandatory parameters listed in Table 2-4, without the connection element identifier parameter but containing the assigned origination connection link identifier parameter. d) Clause 2.2.1.
35、1.2.2, item c) Replace item e) with the following: c Set-up request primitive - issued by the non-assigning exchange Option 1 With regard to the issuing of the Set-up request primitive by the non-assigning exchange, the same procedures as for the assigning exchange are applicable, with the exception
36、 that the connection element identifier shall not be included in the Set-up request primitive. Option 2 With regard to the issuing of the Set Up request primitive by the non-assigning exchange, the same procedures as for the assigning exchange are applicable, with the exception that the Exclusive co
37、nnection element identifier parameter shall be included in the Set - Up request primitive instead of the Connection element identifier parameter. e) Clause 2.2.1.2.1, item e) Replace item e) with the following: e) Set-up request primitive - issued by the non-assigning exchange Option 1 With regard t
38、o issuing the Set-up request primitive by the non-assigning exchange, the same procedures as for the assigning exchange are applicable, with the exception that the connection element identifier shall not be included in the Set - Up request primitive. Option 2 With regard to the issuing of the Set Up
39、 request primitive by the non-assigning exchange, the same procedures as for the assigning exchange are applicable, with the exception that the Exclusive connection element identifier parameter shall be included in the Set - Up request primitive instead of the Connection element identifier parameter
40、. f) Additions to Table 2-2 Add the following to Table 2-2: Parameter Mandatory/Optional * Exclusive connection element identifier * O * * 2) Error corrections a) d) Collision of release primitives Correct 2.4.5.1, item d) as follows: i) Outgoing side of an exchange After sending the release request
41、 primitive with the destination connection link identifier parameter, a release indication primitive may be received. In this case, the exchange shall return a release response primitive towards the B-ISUP AEiI from which the concerned release indication primitive was received. The release response
42、primitive shall be issued when the transmission path is disconnected. ii) Incoming side of an exchange After sending a release request primitive a release indication primitive with a destination connection link identifier parameter may be received. In this case, the exchange shall continue as descri
43、bed in 2.4.5.1 b). SERIES OF ITU-T RECOMMENDATIONS Series A Series B Series C Jeries D Series E Series F Series G Series H Series I Series J Series K Series L Series M Series N Series O Series P Series Q Series R Series S Series T Series U Series V Series X Series Y Series Z Organization of the work
44、 of ITU-T Means of expression: definitions, symbols, classification General telecommunication statistics General tariff principles Overall network operation, telephone service, service operation and human factors Non-telephone telecommunication services Transmission systems and media, digital system
45、s and networks Audiovisual and multimedia systems Integrated services digital network Transmission of television, sound programme and other multimedia signals Protection against interference Construction, installation and protection of cables and other elements of outside plant TMN and network maint
46、enance: international transmission systems, telephone circuits, telegraphy, facsimile and leased circuits Maintenance: international sound programme and television transmission circuits Specifications of measuring equipment Telephone transmission quality, telephone installations, local line networks
47、 Switching and signalling Telegraph transmission Telegraph services terminal equipment Terminals for telematic services Telegraph switching Data communication over the telephone network Data networks and open system communications Global information infrastructure and Internet protocol aspects Languages and general software aspects for telecommunication systems
