Research on construction of 3G network management system

This paper discusses and analyzes 3G network management system function architecture, construction mode, network management interface and the factors affecting the construction of 3G network management system. The basic idea of 3G network management system construction is put forward.

With the advent of the 3G era, the construction of 3G network management system has already mentioned the schedule of the operators. 3G Network Management system construction involves all aspects of the problem, need to take into account the functional requirements, technical framework, operational models, networking and other factors. The following points will focus on the management scope, function architecture, construction mode and network interface of 3G NMS.

3G Network management scope and functional framework

1. Management scope

According to 3G network structure, 3G network includes wireless access network, core network, IP bearer network and business system. Therefore, the management scope of 3G NMS mainly includes:

Among them, the above management scope is not rigid requirement. In the concrete construction, the operators can according to their own actual situation, choose to be implemented in different systems.

Table 1 3G Network management system Administration scope

2. Functional framework

There is no essential difference between 3G network management system and the existing 2G network management system, including configuration management, performance management, fault management, security management, system self-management and other functions.

(1) Fault management: provide the ability to detect, isolate and repair abnormal operation status. The main functions include: fault detection and reporting, maintenance and use of error logs, tracking and locating failures, and performing troubleshooting tests.

(2) Performance management: Performance management evaluation and monitoring system and network performance. Its main functions include collecting and distributing current performance data for resources, and maintaining and checking performance logs for planning and analysis.

(3) Configuration management: Support for network services for the control of Mo, identification, from the collection of data and to provide data. The main functions include recording the current configuration of the network, changing the record configuration, identifying the members of the network, initializing and shutting down the network system, shutting down the network parameters, and naming the object or object set.

(4) Accounting Management: The use of network resources statistics and billing. Its main functions include: billing, notifying the user of the fees to be paid, setting up support for user fees, and being able to combine the cost of using multiple mo.

(5) Security management: Used to protect the use of network resources. Its main functions include: authorization management, access control management, encryption and password management, authentication management, security log management.

In addition to the traditional network layer management functions, 3G Network Management system development, can fully draw on the experience of the construction of 2G network Management system, in the device-oriented, network-based management based on the direction of business-oriented and customer oriented development. This requires the 3G network management system to establish a unified networks and business resource model, business modeling for a variety of business, collecting and mining customer information, and fault information and performance information and resource data, business data and customer data, so that after the failure can be clearly demonstrated to the impact of the network, which business and which customers, improve the level of intelligent network management system. (Computer science)

The functional framework of the 3G network management system is shown in Figure 1.

Figure 1 3G Network system Functional Architecture

Second, 3G network management interface

3GPP defines the standard interface information model for the 3G network management system, that is, the IRP (integrated Reference point Integrated reference points) technology. Among them, 3G network management interface includes two kinds, one is NM-EM/SNM (element management Network element Management/sub-network Management subnet Manage) interface, the other is Nm-ne (network element network Element) interface. The location of the interface is shown in Figure 2.

Fig. 2 3G Network Management System Interface Information Model (IRP interface)

The 3GPP definition IRP contains two parts, the IRP information model and the IRP solution set. The IRP information model is independent of the concrete implementation technology, it defines a number of IRP information Service and network resource model, can realize the universal, normative and standard requirement of 3G network Management System interface. The IRP solution set is related to the specific technology, the network Management system research and development manufacturers can choose, The IRP information model is mapped to different implementation technologies, such as CORBA, CMIP, SNMP, WEBM and so on.

corresponding to the different network management function domain, the IRP can be divided into notice IRP, basic Configuration Management IRP, Alarm IRP, performance IRP and some other kinds. The concept of the IRP is shown in Figure 3.

Fig. 3 Conceptual schematic diagram of IRP

Three, 3G network management system Construction mode

For different operators, can adopt different network management system construction mode. For new entrants to the mobile operators, mainly to take the new strategy; for the mobile operators who already have 2G networks, because of the construction of 2G network management system, 3G network Management system construction has the following two kinds of options to choose:

Figure 1 Scenario 1-extended to 3G network management system on the basis of 2G network management system

Figure 2 Scenario 2-New 3G network Management system

Scheme one: The 2G network management system based on the expansion of the 3G network management system.

Scheme two: New 3G network Management system.

The pros and cons of both options are shown in table 2.

Table 2 Comparison of construction schemes

In addition, for domestic operators, because the use of the headquarters-provincial level two operating maintenance system, the need to build provincial 3G network management and Headquarters 3G network management System two network management systems, and the provincial 3G network management system and Headquarters 3G network management system to do docking, through the interface interaction information. The provincial 3G network management system provides data to the Headquarter 3G network Management system and receives instructions from the headquarters 3G network management system.

Iv. factors affecting the construction of 3G network management

Since the 3G license issuance time has not been determined, the current 3G network management system Research and development is also being carried out and tested, therefore, the 3G network management system construction still has some uncertain factors, mainly manifested in:

1.3G Licence Issuance Time

At present, when the 3G license issuance has not been determined, this will directly affect the 3G network format selection and version selection, so when the network management system construction, how to build natural variables.

2.3G Network Construction Scale

3G Network Management system is to serve 3G networks operations and 3G business operation, 3G network Management System Construction scale and 3G net construction scale, so, the size of the 3G management construction scale is an important factor in the construction of 3G management.

Standardization degree of 3.3G Network management interface

3GPP for the 3G network management set the standard management interface (including NMS and EMS interface, NMS and NE Interface), equipment manufacturers to the standard network interface implementation capacity and implementation will directly determine the quality of 3G management system construction, this is 3G network equipment selection must consider one of the factors. In addition, at present, some manufacturers in the product development is not directly connected to the network element management interface, in the network element device may use some private interface and complex interface, so when the network meta version changes, the network management interface will also change, thus to 3G network Management System Direct Networking unit brings difficulties.

4. The development progress and quality of 3G OMC provided by equipment manufacturers

The OMC system (or operation and maintenance system) provided by the equipment manufacturer is the most direct and effective means to operate and maintain the 3G network. However, equipment manufacturers often pay attention to the research and development of equipment, in the operation and maintenance system research and development on the relative lag or lack of functionality, flexibility, for the network operation of the initial maintenance and management has brought difficulties and challenges.

5.3G Network Maintenance Management mode

The construction of 3G management system is closely related to the network maintenance and management mode adopted by operators. The choice of 3G Network maintenance Management mode and its evolution route directly determine the construction mode of 3G NMS. At present, the domestic operators are or have completed the national and provincial two maintenance system reform, 3G introduced, the need according to the national and provincial level of responsibility between two, to determine the state-level network management system, the administrative scope of the provincial administration system, functions, network interface and other content.

V. Concluding remarks

Whether the domestic mobile operators in the 2G network management based on the expansion of the 3G network management system, or a new 3G network management system, should be reflected in the system-oriented business, customer-oriented management concept, improve the network management system intelligence, information level, with the mobile network operation and maintenance system, strengthen the network and business performance analysis, Provide supporting means for all levels of Network maintenance Management Department (headquarter, province and city).

In the construction of 3G network Management system, the technology framework and information architecture should adopt mature technology to ensure the standardization and expansibility of the system architecture, especially the development and renovation of the network management interface, so as to make the new administrative function Plug and Play to ensure the patency of the information flow of the NMS.

Learn from the experience of 2G network management system, 3G network management system construction can not be achieved overnight, should take the evolution of the strategy, long-term planning, distribution implementation, the initial to achieve all network elements of access and basic management functions, and gradually enrich the application of network management, upgrade the level of network administration, so that the 3G network manager system to reduce operating costs, An important tool and platform for improving operational efficiency and assisting operational decision-making.