1、 INTERNATIONAL TELECOMMUNICATION UNION ITU-T E.418TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (05/2003) SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS Network management International network management Framework for network management of IMT-2000 net
2、works ITU-T Recommendation E.418 ITU-T E-SERIES RECOMMENDATIONS OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS INTERNATIONAL OPERATION Definitions E.100E.103 General provisions concerning Administrations E.104E.119 General provisions concerning users E.120E.139 Ope
3、ration of international telephone services E.140E.159 Numbering plan of the international telephone service E.160E.169 International routing plan E.170E.179 Tones in national signalling systems E.180E.189 Numbering plan of the international telephone service E.190E.199 Maritime mobile service and pu
4、blic land mobile service E.200E.229 OPERATIONAL PROVISIONS RELATING TO CHARGING AND ACCOUNTING IN THE INTERNATIONAL TELEPHONE SERVICE Charging in the international telephone service E.230E.249 Measuring and recording call durations for accounting purposes E.260E.269 UTILIZATION OF THE INTERNATIONAL
5、TELEPHONE NETWORK FOR NON-TELEPHONY APPLICATIONS General E.300E.319 Phototelegraphy E.320E.329 ISDN PROVISIONS CONCERNING USERS E.330E.349 INTERNATIONAL ROUTING PLAN E.350E.399 NETWORK MANAGEMENT International service statistics E.400E.409 International network management E.410E.419 Checking the qua
6、lity of the international telephone service E.420E.489 TRAFFIC ENGINEERING Measurement and recording of traffic E.490E.505 Forecasting of traffic E.506E.509 Determination of the number of circuits in manual operation E.510E.519 Determination of the number of circuits in automatic and semi-automatic
7、operation E.520E.539 Grade of service E.540E.599 Definitions E.600E.649 Traffic engineering for IP-networks E.650E.699 ISDN traffic engineering E.700E.749 Mobile network traffic engineering E.750E.799 QUALITY OF TELECOMMUNICATION SERVICES: CONCEPTS, MODELS, OBJECTIVES AND DEPENDABILITY PLANNING Term
8、s and definitions related to the quality of telecommunication services E.800E.809 Models for telecommunication services E.810E.844 Objectives for quality of service and related concepts of telecommunication services E.845E.859 Use of quality of service objectives for planning of telecommunication ne
9、tworks E.860E.879 Field data collection and evaluation on the performance of equipment, networks and services E.880E.899 For further details, please refer to the list of ITU-T Recommendations. ITU-T Rec. E.418 (05/2003) i ITU-T Recommendation E.418 Framework for network management of IMT-2000 networ
10、ks Summary This Recommendation lays down a framework for supporting and defining the role of network management for IMT-2000 networks. IMT-2000 networks consist of various network elements and telecommunication technologies such as wireless and IP-based services. It is intended to give some guidance
11、 to identify data that is needed to check the status/performance of networks, especially IMT-2000 networks. Network management requires real-time monitoring of current network status and performance and the ability to take prompt action to control the performance and resources of the network when ne
12、cessary. It should be noted that the complete range of network status and performance parameters are not necessary for the introduction of a network management capability. Source ITU-T Recommendation E.418 (2003) was prepared by ITU-T Study Group 2 (2001-2004) and approved under the WTSA Resolution
13、1 procedure on 2 May 2003. ii ITU-T Rec. E.418 (05/2003) 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 fo
14、r studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T stud
15、y groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis
16、with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory pr
17、ovisions (to ensure e.g. interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of
18、such words does not suggest that compliance with the Recommendation is required of any party. 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 posi
19、tion 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 property, prote
20、cted 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. ITU 2003 All rights reserved. No part of this publication may be reprod
21、uced, by any means whatsoever, without the prior written permission of ITU. ITU-T Rec. E.418 (05/2003) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Definitions 2 4 Abbreviations 2 5 Introduction 2 6 Traffic management principles and functions for IMT-2000. 3 7 Network components for IMT-2000 networ
22、k. 4 8 Network status and performance parameters 4 8.1 Base station, radio network controller and mobile switching centre 4 8.2 Home location register and visited location register 5 8.3 Authentication centre 5 8.4 Packet data support node and packet data gateway node . 5 9 Network management of an
23、IMT-2000 network 5 9.1 Base stations . 6 9.2 Packet networks 6 ITU-T Rec. E.418 (05/2003) 1 ITU-T Recommendation E.418 Framework for network management of IMT-2000 networks 1 Scope This Recommendation lays down a framework for supporting and defining the role of network management for IMT-2000 netwo
24、rks. IMT-2000 networks consist of various network elements and telecommunication technologies such as wireless and IP-based services. It is intended to give some guidance to identify data that is needed to check the status/performance of networks, especially IMT-2000 networks. Network management req
25、uires real-time monitoring of current network status and performance and the ability to take prompt action to control the performance and resources of the network when necessary. It should be noted that the complete range of network status and performance parameters are not necessary for the introdu
26、ction of a network management capability. 2 References 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 a
27、nd other references are subject to revision; 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 Recommendations is regularly published.
28、The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T Recommendation E.410 (1998), International network management General information. ITU-T Recommendation E.411 (2000), International network management Operational
29、 guidance. ITU-T Recommendation E.412 (2003), Network management controls. ITU-T Recommendation E.413 (1988), International network management Planning. ITU-T Recommendation E.414 (1988), International network management Organization. ITU-T Recommendation E.415 (1991), International network manageme
30、nt guidance for common channel signalling system No. 7. ITU-T Recommendation E.416 (2000), Network Management principles and function for B-ISDN traffic. ITU-T Recommendation E.417 (2001), Framework for the traffic management of IP-based networks. ITU-T Recommendation E.771 (1996), Network grade of
31、service parameters and target values for circuit-switched land mobile services. ITU-T Recommendation E.776 (1996), Network grade of service parameters for UPT. ITU-T Recommendation I.350 (1993), General aspects of quality of service and network performance in digital networks, including ISDNs. ITU-R
32、 Recommendation M.1168 (1995), Framework of International Mobile Telecommunications-2000 (IMT-2000). ITU-T Recommendation M.3000 (2000), Overview of TMN Recommendations. 2 ITU-T Rec. E.418 (05/2003) ITU-T Recommendation Q.1701 (1999), Framework for IMT-2000 Networks. ITU-T Recommendation Q.1711 (199
33、9), Network functional model for IMT-2000. ITU-T Recommendation Q.1741.2 (2002), IMT 2000 references to release 4 of GSM evolved UMTS core network with UTRAN access network, (clauses 10.3.1 “Telecom Management principles and high level requirements“ and 10.3.2 “Telecom Management Architecture“). 3 D
34、efinitions Network Management definitions are stated within the E.41x series. For the definition of cellular terms reference is made to ITU-T Rec. Q.1001. IMT-2000 network related definitions are provided in ITU-T Rec. Q.1701. 4 Abbreviations This Recommendation uses the following abbreviations: AC
35、Authentication Centre BS Base Station CN Core Network DBMS Database Management System FA Foreign Agent GMSC Gateway Mobile Switching Centre HA Home Agent HLR Home Location Register IN Intelligent Network MAP Mobile Application Part MSC Mobile Switching Centre PDSN Packet Data Support Node RAN Radio
36、Access Network RNC Radio Network Controller SCP Service Control Point UIM User Identity Module UPT Universal Personal Telecommunication VLR Visited Location Register 5 Introduction International Mobile Telecommunications-2000 (IMT-2000) is a family of third generation mobile systems which will provi
37、de access to a wide range of telecommunication services, some of which are supported by the fixed telecommunication networks, to other services which are specific to mobile users, and to new and innovative services. ITU-T Rec. E.418 (05/2003) 3 Key features of IMT-2000 are: high degree of commonalit
38、y of design worldwide; incorporation of a variety of systems (IMT-2000 Family of Systems concept: ITU-T Rec. Q.1701); global roaming; high service quality; use of IN capabilities. Extension of network management aspects to IMT-2000 networks requires consideration of IMT-2000 capabilities, including
39、the multiple Quality of Service (QoS) classes, Service Level Agreements (SLAs) and handover procedures that can exist in a wireless-based network. To guarantee QoS in a radio network, radio resource management is needed. It contains handover/power/admission/load control and packet scheduling, etc. T
40、o assure a satisfactory level of network performance, a robust and fast network management capability is desired to promptly detect any traffic-related problem in the network and to try to resolve it as quickly as possible. In this Recommendation, to identify traffic-related problems, some key param
41、eters relating to performance that can affect traffic in IMT-2000 networks are addressed. In order to indicate the status and measure the performance of the network, data will be required which will identity where and when difficulties are occurring in the network, or are likely to occur. Such data
42、will require real-time collection and processing. Network status and performance parameters from IMT-2000 network elements contain information regarding the following areas: traffic performance within the IMT-2000 network; resource access measurements; Quality of Service; resource availability. 6 Tr
43、affic management principles and functions for IMT-2000 One major characteristic of IMT-2000 networks is that they contain both packet switching and circuit switching. The combination of packet and circuit switching functionality in the same network node adds complexity to the operations functions th
44、at manage the overall network. The network topology of IMT-2000 networks may be adjusted by management controls (e.g., by fine tuning the geographic coverage of adjacent cells, or by adjusting the preference for cell selection for subscribers in the boundary area between such cells) in order to addr
45、ess traffic loading imbalances. Frequent imbalances may need to be detected by management systems, and may be addressed through enhancing the capacity of the radio access network through, e.g., provisioning additional radio resources, cell splitting, etc. An important issue in Network Management for
46、 IMT-2000 networks is that the network topology in mobile networks can frequently change because of roaming and handover, so network management must be able to hold dynamic topology changes e.g., when the cell coverage for specific cells are reduced or expanded from a normal condition when controlli
47、ng a traffic situation between adjacent cells. One of the challenges faced in network management for IMT-2000 networks is that there will often be multiple service providers, network provider and content providers. This environment means service providers must be able to share data related to subscr
48、iber profiles, billing and security information based on business agreements. When a subscriber roams, some of that subscribers data is transferred from one network to another, e.g., HLR to VLR, or HA to FA, as part of real-time call 4 ITU-T Rec. E.418 (05/2003) or session handling. Problems in acce
49、ssing or transferring data in support of roaming need to be detected and addressed by management systems. Another challenge is that provisioning is complex in mobile networks. Data, with regard to the call set up process, involves a naming scheme of addresses and routes which could be specific for each subscribers service level. This data is maintained in different configuration databases. When a subscriber is roaming within a network or between network operations, the specific routing data with reg
