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TELECOMMUNICATION AND INTERNETWORKING
Case Study
 
Wipro partners with leading European Equipment vendor in current engineering of the BSC
 
 
The customer

Our client is one of the leading European Wireless equipment and Mobile handset manufacturing vendor having a wide customer base across Americas, Europe, Middle East, Africa, Asia Pacific, and China. Our client has a market share of 12% in the worldwide GSM/GPRS network infrastructure. Wipro has had a successful and ongoing relationship with this client for over 6 years in different telecom technologies.

 
The business need

The BSC product, of our client, had a wide customer base and was contributing significant revenues in Wireless portfolio. BSC is a key Network Element of the Radio network. Any delay in the feature enhancement releases of this product would delay the entire network roll-out. Our client had to choose a partner who could deliver the product on time, with the highest quality and competitive cost. Our client also needed a partner who could sustain a relationship with their engineering centers located across different continents.

 
The solution
The BSC is a complex product with more than 3 million lines of code. It was extremely crucial for Wipro to ramp up the team to understand the product architecture and to contribute to the new release in a short time span. When introducing the new code, It was important not to break the existing functionality.

As this product was jointly owned by Wipro and the client’s engineering team, located across different centers in different countries, it was important for Wipro’s engineers to integrate into the cultural diversity. Special cultural training programs were organized in Wipro so that the engineers could integrate with the diverse cultures.

Wipro’s role in the product ownership in the last four years includes:
Contribution in defining the product road map
Involvement in BSS and BSC system level specifications and development. Wipro also participated in Workshops conducted for various features where experts from different engineering centers interact.
Complete ownership of BSC Simulator, all Local terminals and tools
BSC level system testing for some of the features/enhancements
Bug fix of BSS Subsystem
Review of BSS Subsystem level documents
Complete re-engineering of the Local Terminal to enhance the GUI and to increase the stability
Analysis/fixing of FRs reported from field and validation centers
Joint ownership of CM [Configuration Management], PM [Performance Management] and FM [Fault Management] domains with client
Complete ownership of Layer3 towards the MS (Radio Resource Management and Radio Resource Control) and GPRS functionality (Packet Transmission Path Setup in BSC)
End customer support (GSM service provider) by working with the client’s team for Level3 support

When the client decided to move the entire BSC engineering activity from their established engineering center to a newly formed engineering center, the product expertise transfer was done by Wipro.

Key Features developed on the product:
High Speed Data Service
Dynamic SDCCH feature
Inter PLMN handover
Location Services
Support for Localized Service Area
Support for Extended GSM [GSM – 850]
UMTS to GSM handover
Enhancements to the following modules
Radio Link Layer Management
Transmission Modules
Configuration Management, Fault Management, Performance Management
Local Maintenance Terminal and associated tools
 
Measurable business benefits
Quick ramp up of resources - flexible technical manpower
Wipro team ramped up in a short time with a well planned transfer of information (executed by both Wipro and Client teams) to handle this complex product
Successful reverse knowledge transfer to the new client site
2 BSC releases with offshore cost advantage
No impact on the releases done by the client, before Wipro’s ownership of the product.
Wipro team demonstrated the ability to work across different cultures and make the releases happen on time
A stable and quality relationship for the client for a flagship product.
 
Technology and tools

Standards : GSM, GPRS, EDGE, CMISE/CMIP
Platform : Sun Solaris, Client specific RTOS, WinXP, WinNT
Language : CHILL, C, Visual C++
Tools: NetHawk, K12, x86 Emulators, Tekelec Chameleon 22 plus and 32 plus, ClearCase

 
 
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