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1 Introduction to the RNC

About This Chapter

This part describes the RNC in terms of its physical structure, logical structure, and softwarestructure.

1.1 RNC Physical StructureThe RNC hardware consists of the cabinet, the cables, the GPS antenna system, the LMT PC,and the alarm box.

1.2 RNC Logical StructureLogically, the RNC consists of the following subsystems: switching subsystem, serviceprocessing subsystem, transport subsystem, clock synchronization subsystem, Operation andMaintenance (OM) subsystem, power subsystem, and environment monitoring subsystem.

1.3 RNC Software StructureThe RNC software has a distributed structure. It consists of Front Administration Module (FAM)software, Back Administration Module (BAM) software, and Local Maintenance Terminal(LMT) software.

RNCProduct Description 1 Introduction to the RNC

Issue 02 (2007-08-15) Huawei Technologies Proprietary 1-1

1.1 RNC Physical StructureThe RNC hardware consists of the cabinet, the cables, the GPS antenna system, the LMT PC,and the alarm box.

Figure 1-1 shows the RNC physical structure.

Figure 1-1 RNC physical structure

(1) GPS: Global Positioning System (2) PDF: Power Distribution Frame (DC)

(3) LMT: Local Maintenance Terminal

Table 1-1 describes the components of the RNC.

Table 1-1 RNC hardware

Component Description

RSR cabinet For details, refer to RNC Cabinet.

RBR cabinet For details, refer to RNC Cabinet.

RNC cables For details, refer to RNC Cables.

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Component Description

RNC GPS antennasystem

The system is composed of the antenna, feeder, jumper, and surgeprotector.The RNC GPS antenna system is used to receive GPS satellitesignals. It is optional.

RNC LMT PC The LMT PC refers to the Operation and Maintenance (OM)terminal that is installed with the Huawei Local MaintenanceTerminal software and is connected to the OM network of RNC. TheLMT is used to operate and maintain the RNC.For details, refer to the RNC LMT User Guide.The RNC LMT is optional. The number of LMT PCs to beconfigured is determined according to the requirements.

RNC alarm box For details, refer to RNC Alarm Box.

1.2 RNC Logical StructureLogically, the RNC consists of the following subsystems: switching subsystem, serviceprocessing subsystem, transport subsystem, clock synchronization subsystem, Operation andMaintenance (OM) subsystem, power subsystem, and environment monitoring subsystem.

Figure 1-2 shows the logical structure of the RNC.

Figure 1-2 RNC logical structure

NOTE

Figure 1-2 shows only the switching subsystem, service processing subsystem, transport subsystem, OMsubsystem, and clock synchronization subsystem. Besides these subsystems, the RNC has the powersubsystem and environment monitoring subsystem.



1.3 RNC Software StructureThe RNC software has a distributed structure. It consists of Front Administration Module (FAM)software, Back Administration Module (BAM) software, and Local Maintenance Terminal(LMT) software.

FAM SoftwareThe FAM software is used in the host of the RNC. It enables the RNC to provide services.

The software is distributed in the FAM boards. It consists of the operating system, middleware,and application software, as shown in Figure 1-3.

Figure 1-3 FAM software structure

l Operating system: The operating system is VxWorks, which is a real-time operating system.

l Middleware: Middleware such as Distributed Object-oriented Programmable RealtimeArchitecture (DOPRA) is used. This enables the upper-layer application software to beindependent of the lower-layer operating system. This scenario is useful for the reuse ofsoftware functions of different platforms.

l Application software: The application software is a functional software of the RNC. It isused to implement the functions of different logical entities. Different types of boards maybe configured with different software. Application software includes operation andmaintenance software (OM), database software (DB), signaling processing software (SIG),user plane processing software (FMR), control plane processing software (RR), and radioresource management software (RRM).

BAM SoftwareThe BAM software is installed on the OMUa board. The software consists of the operatingsystem, database software, and application software, as shown in Figure 1-4.

Figure 1-4 BAM software structure

l Operating system: The operating system is Windows 2003 Server.

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l Database software: The database software is SQL Server 2000.

l Application software: The application software is the BAM application. This applicationis an operation and maintenance software of the RNC. It is used to implement the functionsof different logical BAM entities.

LMT SoftwareThe LMT software is installed on the LMT PC. The software consists of the operating systemand application software, as shown in Figure 1-5.

Figure 1-5 LMT software structure

l Operating system: The operating system is Windows XP Professional.

l Application software: The application software is the LMT application. It provides theexecution entry to the operation and maintenance of the RNC. The software includes theLocal Maintenance Terminal, Trace Viewer, Monitor Viewer, Performance Browser Tool,FTP Client, Convert Management System, and LMT Service Manager.



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