Product_Description_NetHawk_RNC_Iub_Simulator

Product Description

NetHawk RNC/Iub Simulator

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NETHAWK RNC/ IUB SIMULATOR

NetHawk RNC/Iub Simulator is an advanced UMTS tester for several groups of advanced users:

> Development teams test HSDPA implementations of the NodeB.

> Production engineers minimize the number of faulty NodeBs coming out from the factory.

> Operators verify the transmitter and receiver characteristics of NodeB during network acceptance.

> Product sales and marketing teams demonstrate the new NodeB features to the end users.

1. NodeB HSDPA testing in product development

The NetHawk RNC/Iub Simulator supports 3GPP R5 NBAP and HS-DSCH frame protocol specifications required to test HSDPA connections. The test cases can be incrementally developed by using flexible JScript language and NetHawk Simulator methods.

HSDPA test case environment structure

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The Simulator emulates physical and link layers in Iub interface up to the RLC and SSCOP. Test scripts take care of the ALCAP and NBAP signaling using the encoding and decoding libraries. Test scripts can utilize the NetHawk BER Tester to send a PN9 sequence or user defined fixed bit pattern as a payload for the HS-DSCH channel.

Development and testing of the NodeB HSDPA proceeds incrementally step by step:

1. The NetHawk RNC/Iub Simulator sends fixed pattern user plane data with a fixed data rate to the HS-DSCH.2. The NodeB sends HS-DSCH capacity allocation messages to the NetHawk RNC/Iub Simulator. The Simulator reacts automatically to this request and starts sending user plane data to the HS-DSCH at requested data rate.3. The Simulator sets ups HS-DSCH channels using NBAP commands without any NodeB management tools.4. Testing the HS-DSCH channel with different kind on configuration parameters.

Send message dialog box

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2. NodeB testing in production by automated test sequences

The RNC/Iub Simulator supports running automated test cases for the NodeB testing during production phase.

The user can build test sequences with the NetHawk Script Builder. It includes libraries for user interface elements (HTML), JScript and for the NetHawk Simulator methods that makes script development easier and eliminates syntax errors in function calls.

The NetHawk BER Tester is used for verifying the correct bit flow to/from the NodeB. It includes the BER, FER and BLER measurements and statistics. It generates, sends and receives bit patterns over the Iub and possibly over the Uu interfaces. It calculates the BER and stores the BER, BLER and FER. All these measurements and statistics can be controlled by a remotely running script. All the measurement information and statistics can be sent to a file or user interface.

The NetHawk RNC/Iub Simulator follows the 3GPP specification levels continuously. Consulting, configuration and training will give a kick-start for the production tests.

3. NodeB acceptance testing

The NetHawk RNC/Iub Simulator includes an optional automatic ready-to-run test cases for test models (TM) and reference measurement channels (RMC) defined in the 3GPP 25.141 NodeB conformance test specification

The conformance test environment used in NodeB acceptance requires a third party RF equipment for WCDMA air interface spectrum analysis and uplink data generation.

The NetHawk RNC/Iub Simulator operates in the role of the RNC in the Iub interface, the RF equipment measures the physical channel characteristics and sends a PN9 sequence in the uplink direction over the Uu interface. The Simulator monitors the quality of the uplink channel.

TM and RMC automatic test case

Calls/connections view

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Product concept

The NetHawk RNC/Iub Simulator consists of advanced PC software and a NetHawk hardware Adapter. The NetHawk RNC/Iub Simulator software runs in a standard Windows® environment.

The Simulator has a modular software structure. You can obtain software updates and new product components according to your needs. NetHawk has an easy-to-use graphical user interface.

The NetHawk hardware Adapter provides a physical connection to a network element. There are adapters for E1, T1, JT1, STM-1 and OC-3 network interfaces.

The NetHawk RNC/Iub Simulator consist of> NetHawk RNC/Iub Simulator software - Simulation - Script Builder - 3G Monitoring> a NetHawk Adapter> connecting cables > installation guide and online help

Product architecture and components

The main components of the Simulator product architecture are a Simulator user interface, a DCOM interface, a Simulator protocol engine, a 3G Monitoring window and a hardware adapter. The 3G Monitoring window offers the user decoded and analysed signalling in real time. The protocol engine implements the protocol layers of the supported protocol stacks. The NetHawk Adapter can be chosen according to the physical interface, e.g. E1 or STM-1. Applications can send and receive data on radio bearers via UDP sockets.

NetHawk RNC/Iub Simulator product architecture

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The NetHawk RNC/Iub Simulator is configured with XML-based configuration files.

Cofiguration window shown with MS XML Notepad

The protocol engine consists of link layer service and a protocol core. The protocol core contains ready-to-run, multi-connection-capable implementation of the protocol entities above the link layer. The link layer and core autonomously respond to incoming signaling.

The Simulator user interface features message sending and call status. By using the Simulator’s Watch dialog box the user can modify, filter or delete incoming or outgoing messages. With the Watch the user can also wait for uplink message which triggers user defined functions. For example, the figure below shows a watch for NBAP radio link setup response message which can trigger automatically ALCAP establish request for this channel.

New Watch dialog box

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The user can follow the test execution from the NetHawk 3G Monitoring window. User can see for example all the HS-DSCH FP messages. The Simulator’s console window can be used for monitoring the protocol engine of the Simulator.

NetHawk’s Simulator solution for product development includes scripting and test specification support, and consulting services as well. Moreover, to ensure a smooth kick-start the configuration and training services are included.

Script Builder is a visual tool for creating and modifying test scripts. NetHawk RNC/Iub Simulator contains a set of scripts for common procedures. User can create or modify scripts for their own test purposes.

The user interface of the scripts is implemented with HTML. The controlling part of the scripts is implemented with JScript or VBScript.NetHawk Script Builder and the simulation user interface utilise the Microsoft Internet Explorer web browser and its scripting features. Thus, DHTML and ActiveX controls can also be used in addition to HTML to create script user interfaces.

NetHawk RNC/Iub Simulator User Interface

Script Builder

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3G Monitoring decodes and analyses signalling protocols in various formats, levels of details and coding options. Statistics information about traffic is collected simultaneously with analysis. 3G Monitoring can also record traffic into trace files stored on the PC hard disk for later analysis. All the trace files are fully compatible with the 3G NetHawk Analyser.

NetHawk 3G Monitoring also contains a powerful and easy-to-use environment for setting up filters and triggering different actions. Specified events or messages are awaited and when encountered, a selected action is performed. Online help in using 3G Monitoring as well as comprehensive online protocol descriptions are always available.

3G Monitoring window

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NetHawk Adapters for a laptop PC

NetHawk N3C Adapter for optical STM-1/OC-3 single mode interfaces.

NetHawk N2 Adapter for ATM over E1/T1/JT1 interfaces according to the ITU-T G.703/ANSI T1.403 specifications

NetHawk Adapter for a desktop PC

NetHawk D3 Adapter for optical STM-1/OC-3 single and multimode interfaces

NETHAWK INTERFACE ADAPTERS

HEADQUARTERS: Elektroniikkatie 2, Fin-90570 Oulu, Finland

tel. +358 (0)403 010 300, fax +358 (0)8 551 3565

www.nethawk.fi

> Sales contact [email protected] > Customer support [email protected]

NetHawk Care - extended customer service

NetHawk Care is an extended warranty and maintenance service that offers you services with software updates and privileged access to NetHawk’s services - among other benefits. Visit www.nethawk.fi to find out more.

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