1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Q.1751 SERIES Q: SWITCHING AND SIGNALLING Signalling requirements and protocols for IMT-2000 (06/2000) Internetwork signal I ing requirements for IMT-2000 capability set 1 ITU-T Recommendation Q. 1751 (Former
2、ly CCITT Recommendation) COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN SPE
3、CIFICATIONS 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 INTERWORIUNG OF SIGNALLING SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 DIGITAL SUBSCRIBER SIGNALLING SYSTE
4、M No. 1 PUBLIC LAND MOBILE NETWORK INTERWORIUNG WITH SATELLITE MOBILE SYSTEMS INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q.lLQ.3 Q.4-Q.59 Q.60.99 Q. 100.119 Q. 120.249 Q.250.309 Q.310.399 Q.400.499 Q.500.599 Q.600.699 Q.700.849 Q.850.999 Q. 1000.
5、1099 Q. 1 100.1199 INTELLIGENT NETWORK Q. 1200.1699 BROADBAND ISDN Q.2000.2999 For further details, please re$er to the list of ITD-T Recommendations. COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesITU-T Recommendation 4.1751 Internetw
6、ork signalling requirements for IMT-2000 capability set 1 Summary This ITU-T Recommendation contains signalling requirements for the Network-to-Network Interface (“I) protocol. The requirements are to support the capabilities that are recommended in the IMT-2000 Framework document and specified as C
7、apability Set 1 (CS-1). This ITU-T Recommendation covers requirements for four communication groups of the NNI: Call and Bearer Control; Mobility Management; Virtual Home Environment (WIE) Service Control; and Packet Data Services and Internet Access Control. The requirements for inter-network secur
8、ity are described at a high level, and its functionality is incorporated into applicable communications group protocols. The requirements specified in this ITU-T Recommendation are non-information flow related, and they should be viewed as complementary to the information flows of ITU-T Recommendati
9、on Q. 172 1. They include general NNI protocol requirements, NNI functional models, NNI reference points, state models for selective functional entities, and the choice of various protocol suites. Source ITU-T Recommendation Q. 175 1 was prepared by ITU-T Study Group 1 1 (1 997-2000) and approved un
10、der the WTSC Resolution 1 procedure on 15 June 2000. Keywords AMF, BICC, CN, CS-1, IMT-2000, NAP, LMFh, LMFv, MT, NNI, RAN, UIM, WE. ITU-T 4.1751 (06/2000) 1 COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesFOREWORD The International Tel
11、ecommunication 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 issuing Recommendations on the
12、m 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 these topics. The approval of ITU
13、-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 expression “Administration“ is use
14、d 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 Intellectual Property Right. ITU ta
15、kes 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 received notice of intellectual prop
16、erty, 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 reserved. No part of this publication
17、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 the ITU. 11 ITU-T 4.1751 (06/2000) COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling Se
18、rvicesCONTENTS 1 2 5 6 6.1 6.2 7 8 8.1 8.2 3 4 Scope . References . Definitions Abbreviations Introduction . General requirements NNI requirements VHE Service control requirements . 6.2.1 Remote programming-based VHE 6.2.2 Service capabilities 6.3 CN data storage requirements for subscriber (user) p
19、rofile 6.4 Global roaming requirement . 6.5 NNI communication grouping 6.6 Internet services 6.7 Security Requirements 6.7.1 Requirements for the support of user authentication . 6.7.2 Encryption requirements for Network-to-Network Interface 6.7.3 Key Management requirements for Network-to-Network I
20、nterface Interconnection model NNI functional interface . Functional model Reference Points . 8.2.1 8.2.2 8.2.3 8.2.4 8.2.5 8.2.6 8.2.7 8.2.8 8.2.9 8.2.10 8.2.1 1 8.2.12 8.2.13 Reference Point NO 1 Reference Point NO2 Reference Point NO3 Reference Point NO4 Reference Point NO5 Reference Point NO6 Re
21、ference Point NO7 Reference Point NO8 Reference Point NO9 Reference Point N10 Reference Point N11 Reference Point N12 Reference Point N13 ITU-T 4.1751 (06/2000) Page 1 1 2 2 5 5 5 6 6 6 6 7 7 8 9 9 9 9 10 10 10 11 12 12 12 12 12 13 13 13 13 13 13 13 14 . 111 COPYRIGHT International Telecommunication
22、s Union/ITU TelecommunicationsLicensed by Information Handling Services9 9.1 9.2 9.3 9.4 9.5 9.6 9.7 10 10.1 10.2 10.3 11 11.1 11.2 8.2.14 Reference Point N14 8.2.15 Reference Point N15 8.2.16 Reference Point N16 8.2.17 Reference Point N17 8.2.18 ReferencePointN18 8.2.19 Reference Point N19 8.2.20 R
23、eference Point N20 8.2.21 Reference Point N21 Protocol requirements for Mobility Management . Service logic interaction modes Service drivers LMFv State Model 9.3.1 State: v Null 9.3.2 State: v-Initial Registration . 9.3.3 State: V-Authentication Processing 9.3.4 State: V-Registrationqending 9.3.5 S
24、tate: V-Active-registered 9.3.6 State: v-Inactive-registered . 9.3.7 State: v Denied LMFh State Model 9.4.1 State H-Lacation - Unknown . 9.4.2 State H-Registering . 9.4.3 State H-Registered - - 9.4.4 State H-Old-Lacation-Cancelling-and-Registered . 9.4.5 State-H-Exception AMF state model 9.5.1 State
25、: A Null . 9.5.2 State: Authentication-Processing 9.5.3 State: Awaiting-Challenge-Response . Mobility Management Functional Communications Choice of Protocol Suite . - Protocol requirements for VHE Service Control General requirements Service Control Functional Communications . Choice of Protocol Su
26、ite . Protocol requirements for Call and Bearer Control General requirements Choice of switching principles Page 14 14 14 14 14 15 15 15 15 15 16 16 17 18 18 19 19 20 20 20 21 22 22 23 23 23 24 25 25 25 26 26 26 27 28 28 28 28 iv ITU-T 4.1751 (06/2000) COPYRIGHT International Telecommunications Unio
27、n/ITU TelecommunicationsLicensed by Information Handling Services11.3 11.4 11.5 11.6 12 12.1 12.2 Call and Bearer Control functional communications Choice of Protocol Suite . Multimedia calls . Multi-party calls Protocol requirements for Packet Service Control The PSCF to PSGCF Interface protocol .
28、12.1.1 User plane requirements 12.1.2 Control plane requirements . The LMFp to LMFp Interface Protocol Appendix I . Guidance on trigger concepts and usage 1.1 Purpose 1.2 Introduction . 1.3 Principles and concepts . 1.4 Dynamic trigger arming 1.5 Distribution oftriggers ITU-T 4.1751 (06/2000) Page 2
29、8 30 31 31 32 32 33 33 33 35 35 35 35 36 36 V COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesCOPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesITU-T Recommendation 4.1751 In
30、ternetwork signalling requirements for IMT-2000 capability set 1 1 Scope The scope of this ITU-T Recommendation includes preparation of inter-networking signalling requirements to be used for development of a unique and common Network-to-Network Interface (“I) protocol. With inputs from ITU-T Recomm
31、endations 4.1701 i, 4.171 1 2 and 4.1721 3, this ITU-T Recommendation provides signalling and protocol requirements, that are not of information flow name. Specifically, this ITU-T Recommendation includes the following subjects: o Description of the signalling layers in accordance with the functiona
32、l groupings for Call and Bearer Control (CBC), Mobility Management (MM), Packet Services Control (PSC), and VHE Service Control (VSC). State Models for various Functional Entities. o NNI instances for Global Roaming and their Reference Points. Signalling Requirements for NNI Protocol(s). o o o Choic
33、e of NNI Protocols. The CN-CN interworking can also be realized by specifying an interworking function (IWF) for protocol (and billing) information conversion between different family members. But the detailed specification of the interworking function is outside the scope of ITU. Preparation of det
34、ailed description using “Specification and Description Language“ (SDL), design of the protocol architecture and coding of the protocol are beyond the scope of this ITU-T Recommendation. Aspects of OAM between Family Member Systems are also beyond the scope of this ITU-T Recommendation. 2 References
35、The following ITU-T Recommendations and other 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
36、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 Recommendations is regularly published. 11 2 3 4 5 6 7 ITU-T Recommendation Q. 170 1 (1 999
37、), Framework for IMT-2000 networks. ITU-T Recommendation Q. 17 1 1 (1 999), Network functional model for IMT-2000. ITU-T Recommendation Q. 172 1 (2000), Information flows for IMT-2000 capability set 1. ITU-T Recommendation Q. 1901 (2000), Bearer independent call control protocol. ITU-T Recommendatio
38、n 4.2630.1 (1999), AAL type 2 signalling protocol (Capability Set 1). ITU-T Recommendations Q. 123 8 series, Inteflace Recommendation for intelligent network capability set 3. ITU-T Recommendation 4.1290 (1998), Glossary of terms used in the definition of intelligent networks. ITU-T 4.1751 (06/2000)
39、 1 COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling Services3 Definitions This ITU-T Recommendation defines the following terms: 3.1 anchor core network: In a data session roaming environment, the anchor core network is the network where the dat
40、a session is initiated and a packet service gateway is assigned to the mobile terminal. The anchor core network may be either the home or the visited network. 3.2 reference point: In an inter- or intra-network functional model, the point of reference is referred to the relationship between two funct
41、ional entities for exchanging signalling messages and operations transactions. 3.3 service application: The provision of services by general purpose capabilities, such as Intelligent Network capabilities as applied at the home location or at a visited location as part of a Virtual Home Environment.
42、3.4 service control: Functions that set or modify the context in which basic calls and bearers are established, modified and released. 3.5 state model: The state model for a functional entity is a schematic representation of the states of a functional entity in relation to an inter-network signallin
43、g procedure. It includes identification of all entry and exit Detection Points (DPs) for each state. 3.6 subscriber: The user of a mobile terminal who has subscribed to the service. 3.7 supplementary service application: The provision of a specific supplementary service, typically through use of ser
44、vice specific capabilities, whether at the home location or at the visited location as part of a Virtual Home Environment. 3.8 user: The user of a mobile terminal. The terms “user“ and “subscriber“ are used interchangeably in this ITU-T Recommendation. 3.9 virtual home environment: The provision of
45、a service experience to the visiting subscriber identical to, or as similar as possible to the service experience the subscriber has when served at his home location. This ITU-T Recommendation uses terms defined in ITU-T Recommendation Q. 170 1 i. - core network This ITU-T Recommendation uses terms
46、defined in ITU-T Recommendation Q. 1290 7. - functional entity - detection point - service trigger 4 Abbreviations This ITU-T Recommendation uses the following abbreviations: AALX ATM Application Layer x AC Authentication Centre ADDS Application Data Delivery Service AIN1 ATM InterNetwork Interface
47、AMF Authentication Management Function ATM Asynchronous Transfer Mode BICC Bearer Independent Call Control 2 ITU-T 4.1751 (06/2000) COPYRIGHT International Telecommunications Union/ITU TelecommunicationsLicensed by Information Handling ServicesB-ISUP CBC cc CCAF CCF CCF CLI CN CNa CnCAF CnCF CNh CNp
48、v CNsn CNv cs-x DFP DP FE FT GPCF GPF GTT ID IF IMDN IMT-2000 IMUI IN INAP IP ISDN ISP ISUP IWF Broadband ISUP Call and Bearer Control Call Control Call Control Agent Function (enhanced, as described in ITU-T Recommendation 4.1711 2) Call Control Function Call Control Function (enhanced, as describe
49、d in ITU-T Recommendation 4.1711 2) Calling Line ID Core Network Core Network (anchored) Connection Control Agent Function Connection Control Function Core Network (home) Core Network (previous visited) Core Network (supporting) Core Network (visited) Capability Set X Distributed Functional Plane Detection Point Functional Entity Fixed Terminal Geographic Position Control Function Geographic Position Function Global Title Translation Identity Information Flow IMT-2000 International Mobile Directory Number International Mobile Telecommunications-2000 IMT-2000 Int
