Ho Chi Minh City Software Testing Conference January 2015 Software Testing in the Agile World Website: www.hcmc-stc.org Author: Hien Minh Trinh At Target Testing, we use advanced testing techniques, experienced testing specialists and a process driven approach to testing to ensure we deliver a highly effective testing service with fewer resources and in a shorter period of time. It is our firm belief that efficient and effective testing is not a matter of the number of testers you have but the quality of those testers and the tools they use. Network Element Integration Test verifies the functionality of the OneBTS Network Element at its defined interfaces within a simulated environment. Simulating the complete "outside world" of the Network Element reduces the complexity of testing, increases the speed of testing and simplifies the identification of errors within the Network Element. The tests executed by Network Element Integration Test will cover new features of the Network Element as well as features included in previous releases to ensure that feature enhancements have only the defined impact on an already stable system.

1. PERFORMING TARGET TEST IN
UMTS NETWORK
1
Presenter : Hien Trinh Minh

2. Background & Work experience:
 2003 - 2008: Tester - TMA Company
 2008 – now: Harvey Nash Vietnam
 Senior QC Engineer
 Principal QC Engineer
Contact info:
Hien.trinhminh@harveynash.vn
Presenter : Hien Trinh Minh

3.  Sharing knowledge in UMTS Network Overview
Objectives
 Sharing experience to perform automation test in UMTS
Image source: from internet

4. Agenda
 Overview UMTS Network
 UMTS/GSM System Architecture
 UTRAN Architecture
 NodeB Hardware
 NodeB Block Diagram
 Basic Telecommunication Services
 Performing a terget test at NodeB
 Network Element Integration Test Environment
 UMTS Test Mobile Over Qualcomm
 Components in Environment
 Gui tool for testing
 Perl Environment for testing
 Messages and log viewer

5. UMTS Architecture
• UMTS: Universal
Mobile
Telecommunications
System
• PLMN: Public Land
Mobile Network
• UTRAN: UMTS
Terrestrial Radio
Access Networks
• UE: User Equipment
• ME: Mobile
Equipment
• USIM: Universal
Subscriber Identity
Module
• UE = ME + USIM
Image source: from internet

6. UTRAN Architecture
• RNS: Radio Network Systems
• RNC: Radio Network Controller
• Node B: a UMTS term to denote
the BTS
• Interfaces:
– Node B x RNC : Iub
– RNC x RNC : Iur
– RNC x CN : Iu
• A UE can be served by multiple
cells simultaneously
• Node B uses WCDMA
Image source: from internet

7. NodeB Hardware
Image source: from internet

8. NodeB Block Diagram
Image source: from internet

9. Basic telecommunication services
• Bearer services: pure transport
between acess points
– CS data
– PS data
• Teleservices: provide complete
capability, including TE functions,
communication protocols
– Telephony
• Speech
• Emergency call
• Teleconferencing
• Voice-band-data
– Sound & Videotelephony
• Wideband-speech
• High-Quality Audio
• Video telephone
• Video conference
• Video surveillence /
monitoring
– Teleactions
• Remote control
• Remote terminal
• Credit authorisation
• …
– Message Handling
• SMS
• Voice mail
• Email
– Fascimile
• Store-and-Forward telefax
• End-to-End telefax
– Broadcast
• Cell Broadcast service
• Multicast service
– Supplementary services
• Call barring
• Call forwarding
• Call hold
– Multimedia

10. Performing a target test at NodeB (cont)
Components in Environment
 NodeB is real hardware with radio communication equipment,
amplifiers, alarms, a T1/E1, optional T3/E3, and OC3/STM1 facilities
interface, Ethernet switch, filters, and a user alarm interface
 RNC : simulated
 UE : real/ simulated (Qualcom , Ubinetics )
 PET : Perl language
 RMT : tool
 Radio
 Converter box
 Linux box.

11. GUI tool for testing
- NPT – Nash Protocol Tester
 NPT® is the Perl Environment for
Testing
 Nash Protocol Tester is a
simulator for telecommunication
systems
 interactive testing is supported
by NPT® using Perl
 script language allows you to
implement almost any test case
Image source: from internet

12. Perl Environment Test
 simulating the RNC/Core Network part of the Iub
interface
 Allows complete simulation of various protocol stacks in
UMTS
 Can control a lot of other test equipment, like VSA,
signal generators, test mobiles
 Provides interface to test management system, e.g. for
submission of test results of automatic tests
 Operational System

13. Pet Log Viewer

14. Verify scope of testing
 Ensures that a SW release is basically running straight
forward at the NodeB.
 Verifies the functionality of the NodeB network element at
its defined interfaces within a simulated environment.
 Cover new features of the NE as well as features included
in previous releases.
 Verifies impact on an already stable system
 Check software fulfilling the given system requirements at
a specified hardware configuration

15. Image source: from internet