1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TE LEC0 MM UN I CATI0 N STANDARDIZATION SECTOR OF ITU SERIES Q: SWITCHING AND SIGNALLING Intelligent Network Q.1237 (O 6/20 00) Extensions to Intelligent Network Capability Set 3 in support of B-ISDN ITU-T Recommendation Q. 1237 (Formerly CCITT Recommendat
2、ion) ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4 AND No. 5 SPECIFICATIONS OF SIGNALLING SYSTEM No. 6 SPECIFICATIONS OF SIGNALLING SYSTEM R1 S
3、PECIFICATIONS OF SIGNALLING SYSTEM R2 DIGITAL EXCHANGES INTERWORKING OF SIGNALLING SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 Q3 INTERFACE DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 PUBLIC LAND MOBILE NETWORK INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING CLAUSES APPLICABLE TO ITU-T STAND
4、ARD SYSTEMS Q.1-Q.3 Q.4-Q.59 Q.60GQ.99 Q. 100-Q. 119 Q. 120-Q.249 Q.250-Q.3 09 Q.310-Q.399 Q.400-Q.499 Q. 500-Q. 5 99 Q.600-Q.699 Q.700-Q.799 Q.800-Q.849 Q. 8 50-Q. 999 Q. 1000-Q. 1099 INTERWORKING WITH SATELLITE MOBILE SYSTEMS Q. 1100-Q. 1199 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 Q.170
5、0-Q. 1799 BROADBAND ISDN Q.2000-Q.2999 For further details, please refer to the list of ITU-T Recommendations. ITU-T Recommendation Q.1237 Extensions to Intelligent Network Capability Set 3 in support of B-ISDN Summary This Recommendation describes the call model, the application protocol and the pr
6、ocedures for Intelligent Network capabilities associated with B-ISDN. It describes an application protocol that is fully compatible with INAP in ITU-T Q.1238. It describes SSF to SCF call control that is based on service aspect requirements and on network aspect requirements of ITU-T Q. 123 1. Sourc
7、e ITU-T Recommendation Q.1237 was prepared by ITU-T Study Group 11 (1997-2000) and approved under the WTSC Resolution 1 procedure on 15 June 2000. Keywords Broadband, B-ISDN, B-ISUP, DSS2, Intelligent Network. ITU-T 0.1237 (06/2000) i FOREWORD The International Telecommunication Union (ITU) is the U
8、nited 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 issuing Recommendations on them with a view to standardizing tele
9、communications 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 these topics. The approval of ITU-T Recommendations is covered by th
10、e 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 expression “Administration“ is used for conciseness to indicate both
11、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 Intellectual Property Right. ITU takes no position concerning the evid
12、ence, 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 received notice of intellectual property, protected by patents, which m
13、ay 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 reserved. No part of this publication may be reproduced or utilized in an
14、y form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from ITU. ITU-T 0.1237 (06/2000) 11 CONTENTS Page 1 2 3 4 5 5.1 5.2 6 6.1 6.2 6.3 6.4 6.5 10 11 11.1 Scope References Definitions Abbreviations . Relationship of this Recommendation
15、to ITU-T Q . 123 8 . Call model 5.1.1 Examples of specific narrow-band information 5.1.2 Examples of specific broadband information Detection point criteria and triggers . CCF/SSF model CCF/SSF FE model CCF/SSF functional model components Basic call manager (BCM) . 6.3.1 BCSM model . 6.3.2 BCSM desc
16、ription . 6.3.3 BCSM resume points and BCSM transitions 6.3.4 BCSM indications for the call model 6.3.5 Mapping from cause to DP 6.3.6 BCSM detection point . 6.3.7 DP criteria . 6.3.8 Trigger types and trigger precedence for B-ISDN when carrying N-ISDN services 6.3.9 Trigger types and trigger preced
17、ence for B-ISDN Feature interaction manager (FIM)/Call manager (CM) 6.4.1 DP handling . IN-Switching manager (IN-SM) . 6.5.1 The connection view model SCF model Finite state model for SSF Finite state model for SCF Finite state model for US1 Operation procedures Connect procedure 1 1.1.1 General des
18、cription . 1 1 2 2 4 4 5 5 5 5 30 31 31 33 33 50 50 63 63 64 64 66 66 66 66 66 66 . 111 ITU-T 0.1237 (06/2000) 11.2 11.3 11.4 11.5 11.6 2 2.1 2.2 2.3 12.4 12.5 12.6 12.7 12.8 12.9 12.10 12.11 12.12 12.13 12.14 12.15 12.16 13 14 14.1 14.2 14.3 ContinueWithArgument procedure EventReportBCSM procedure
19、11.2.1 General description . 11.3.1 General description . InitialDP procedure . 11.4.1 General description . InitiateCallAttempt procedure RequestReportBCSMEvent procedure . Parameter descriptions AALP arameters Additional ATMCellRate AE S ACalledParty . AES ACallingPart y Alternative ATMCellRate .
20、ATMCellRate . Bearercapability . CalledPartySubaddress . CDVTD e s crip tor ConnectionIdenti fier . CumulativeTransitDelay . EndtoEndTransitDelay . Event SpecificInformationBCSM . GenericIdentifier . MinimumATMCellRate . QoSParameter . 11.5.1 General description . 11.6.1 General description . Errors
21、 ASN . 1 definitions . Data types . Operations and arguments Classes Appendix I . Mapping of Setup Request Primitive signalling information to PIC I . 1 OBCSM mapping of setup request primitive signalling information to PIC . Collect-Information PIC . 1.1.1 O-Null PIC I . 1.2 Page 67 67 67 67 67 67
22、67 67 68 68 69 69 69 69 69 69 69 69 70 70 70 70 70 71 71 71 71 72 72 72 74 75 76 76 76 79 iv ITU-T Q.1237 (06/2000) I . 1.3 OActive PIC I . 1.4 OBearer-Modify PIC I . 1.5 OBearer-Active PIC . TBCSM mapping of setup request primitive signalling information to PIC 1.2.1 T-Null PIC 1.2.2 TActive PIC .
23、1.2.3 TBearer-Modify PIC . 1.2.4 TBearer-Active PIC 1.2 Appendix II . Relationship of DP criteria to Signalling Parameters II . 1 Relationship of DP criteria to signalling parameters II . 1.1 Analyse-Information PIC . II . 1.2 Authorize-Termination-Attempt PIC . Page 80 80 80 80 80 82 82 82 82 82 82
24、 86 V ITU-T 0.1237 (06/2000) ITU-T Recommendation Q.1237 Extensions to Intelligent Network Capability Set 3 in support of B-ISDN 1 Scope This Recommendation describes the call model, the application protocol and the procedures for Intelligent network capabilities associated with DSS2, B-ISUP, DSS2 c
25、arrying 64 kbit/s circuit emulated services, and B-ISUP carrying 64 kbit/s circuit emulated services. The application protocol described in this Recommendation is fully compatible with INAP in ITU-T Q.1238, and contains extensions to ITU-T Q.1238. The SSF to SCF call control is based on service aspe
26、ct requirements and on network aspect service requirements of ITU-T Q. 123 1. 2 References The following ITU-T Recommendations and other references contain provisions, which through references in this text, constitute provisions of this Recommendation. At the time of publication, the editions indica
27、ted were valid. All Recommendations and other references are subject to revision; all users of this Recommendation are therefore encouraged 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
28、 Recommendations is regularly published. ITU-T Recommendation Q.93 1 (1998), ISDN user-network interface layer 3 specification for basic call control. ITU-T Recommendation Q.932 (1998), Digital subscriber signalling sstem No. I - Generic procedures for the control of ISDN supplementary services. ITU
29、-T Recommendation Q. 123 1 (1 999), Introduction to Intelligent Network Capability Set 3. ITU-T Recommendations Q.1238, Q.1238.1 (2000), Q.1238.2 (2000), Q.1238.3 (2000), Q.1238.4 (2000), Q.1238.5 (2000), Q.1238.6 (2000), Q.1238.7 (2000), Interface Recommendation for Intelligent Network Capability S
30、et 3. ITU-T Recommendation Q.1290 (1998), Glossary of terms used in the definition of Intelligent Networks. ITU-T Recommendation Q.2610 (1999), Usage of cause and location in B-ISDN user part and DSS2. ITU-T Recommendation Q.2723.1 (1 996), B-ISDN user part - Support of additional traffic parameters
31、 for sustainable cell rate and quality of service. ITU-T Recommendation Q.2725.1 (1996), B-ISDN user part, Support of negotiation during connection setup. ITU-T Recommendation Q.2725.2 (1 996), B-ISDN user part - Modzfication procedures. ITU-T Recommendation Q.276 1 (1 999), Functional description o
32、f the B-ISDN user part (B-ISUP) of signalling system No. 7. ITU-T Recommendation Q.2762 (1999), General functions of messages and signals of the B-ISDN userpart (B-ISUP) of signalling system No. 7. ITU-T Recommendation Q.2763 (1999), Signalling system No. 7 B-ISDN user part (B-ISUP) -Formats and cod
33、es. 1 ITU-T 0.1237 (06/2000) - ITU-T Recommendation Q.2769.1 (2000), Support of number portabilis information across ITU-T Recommendation Q.293 1 (1 995), Digital subscriber signalling system No. 2 - User network interface (UNI) layer 3 specification for basic call/connection control. ITU-T Recommen
34、dation Q.2932.1 (1996), Digital subscriber signalling system No. 2 - Generic functional protocol: Core functions. ITU-T Recommendations Q.296 1, Q.296 1.1 (1 995), Q.296 1.2 (1 997), Q.296 1.3 (1 997), Q.296 1.4 (1 997), Q.296 1.5 (1 999), Q.296 1.6 (1 998), Digital subscriber signalling system No.
35、2 -Additional Traffic Parameters. ITU-T Recommendation Q.2962 (1998), Digital subscriber signalling system No. 2 - Connection characteristics negotiation during call/connection establishment phase. ITU-T Recommendation Q.2963.1 (1 999), Peak cell rate modification by the connection owner. B-ISUP . -
36、 - - - - 3 Definitions The definitions of ITU-T Recommendation Q. 1238 and ITU-T Recommendation Q. 1290 are applicable. See also parameter descriptions in this Recommendation. 4 Abbreviations This Recommendation uses the following abbreviations: AAL ACM AESA ATM BCSM B-ISDN B-ISUP BTC CBR CCF CDVT C
37、PCS-SDU CPH cs cscv DP DSS2 EDP FRL ATM Adaptation Layer Address Complete Message ATM End System Address Asynchronous Transfer Mode Basic Call State Model Broadband Integrated Services Digital Network Broadband ISDN User Part Broadband Transfer Capability Constant Bit Rate Call Control Function Cell
38、 Delay Variation Tolerance Common Part Convergence Sublayer - Service Data Unit Call Party Handling Call Segment Call Segment Connection View Detection Point Digital Subscriber Signalling System 2 Event Detection Point Facility Restriction Level 2 ITU-T 0.1237 (06/2000) FSM GIT IAA IAM ISDN PIC QOS
39、SCF SLPI SS No. 7 sscs SSF TDM TDP TNS UNI us1 VCI VPCI Finite State Machine Generic Identifier Transport IAM Acknowlegment Message Initial Address Message Integrated Services Digital Network Point in Call Quality of Service Service Control Function Service Logic processing Program Instance Signalli
40、ng System No. 7 Service Specific Convergence Sublayer Service Switching Function Time Division Multiplex Trigger Detection Point Transit Network Selection User Network Interface User Service Information Virtual Channel Identifier Virtual Path Connection Identifier 5 ITU-T Q.1237 describes IN service
41、s in a B-ISDN environment. It includes descriptions for implementing existing narrow-band IN services and new broadband IN services over a network that uses B-ISDN signalling. In cases of ambiguities between ITU-T Q.1237 and ITU-T Q.1238, the operations, procedures, formats, and codes of ITU-T Q. 12
42、38 take precedence. ITU-T Q.1237 is based on the functional model, call model, procedures, operations, formats, and codes of ITU-T Q.1238. It includes some enhancements to reflect uniqueness of B-ISDN. The enhancements can be categorized into two major topics: 1) Call Model; 2) DP Criteria and Trigg
43、ers. Relationship of this Recommendation to ITU-T Q.1238 5.1 Call model ITU-T Q.1237 includes one major change to the Q.1238 call model to accommodate broadband connection modification, as well as minor changes to the information available in the originating and terminating Points in Call (PICS). Th
44、e call model is changed to accommodate the connection modification capability that is included in B-ISDN signalling. This is accomplished through the addition of a subordinate call state model in both the originating and terminating BCSMs. The subordinate state model assumes that the BCSM creates a
45、subordinate process when it enters the O/TActive PIC. This subordinate process reflects the status of the broadband bearer connection. 3 ITU-T 0.1237 (06/2000) The call model is also changed to reference information available in broadband signalling for each PIC. Implementation of existing narrow-ba
46、nd IN services in B-ISDN is based on the existence of specific narrow-band signalling information in the ITU-T Recommendations for broadband signalling. Implementation of broadband IN services is based on the extensions of signalling information in ITU-T Recommendations to support broadband bearers.
47、 Therefore, references are included in an informative appendix to provide broadband references for both narrow-band and broadband signalling information. 5.1.1 Narrow-band Bearer Capability is carried in DSS2 and in B-ISUP, providing an instance of DSS1 Bearer Capability and of ISUP User Service Inf
48、ormation (USI) in broadband signalling. Forward Narrow-band Interworking Indicator and the NationaVInternational Call Indicator are carried in B-ISUP, providing an instance of ISUP Forward Call Indicators in broadband signalling. Many parameters carried in B-ISUP are identical to parameters provided
49、 in ISUP. The Forward Global Virtual Network Service (Forward GVNS), Backward GVNS parameters are examples, as are Called Directory Number and Number Portability Forward Information. Other narrow-band signalling information, relating to Supplementary Services and to Call Progress, is included in broadband signalling by reference. The Notification indicator, carried in ITU-T Q.2931 DSS2, cites ITU-T Q.932 as the example for the content to be included in its information field. The Progress Indicator, carried in ITU-T Q.2931, cites ITU-T Q.931 to define the content to be included in its informat
