3G Related Project Examples

3G RANAP Protocol Stack Development and 3G Internet RADIUS Authentication and Accounting Integration

These projects involved:

• RADIUS Authentication and Accounting Internet Protocols
• 3GPP RANAP Protocol Stack Development and Integration
• Using SDL for Design and Implementation
• Using Telelogic Object Geode SDL Tools with autocode generation
• Using Telelogic TAU SDL Tools
• Use of OSE RTOS

Our relationship with the client started with an evaluation project to integrate Radius Authentication and Accounting network protocols into their existing 3G stack. We were selected for our prior experience of SDL using Telelogic tools. The first task was to undergo a significant learning curve to come up to speed on their existing system where the client provided documentation and SDL that we were able to study and assess. The work was to be at the higher layers of the RNC and the CN where they had used SDL tools configured for full auto code generation. We agreed on toolsets and test techniques that would ensure our work would integrate seamlessly, and with minimum effort on their part.

To aid smooth transition we integrated the work at the clients offices and delivered source code and documentation in the clients own internal format. The deliverables that the client received were therefore presented in what was to them a familiar fashion and therefore much easier to work with. This project was delivered within the client's time constraints (which were tight) and completely to budget.

The success of the Radius project paved the way for a larger project to provide fully 3GPP compliant RANAP protocol stack procedures(a 3g protocol for RNC - CN communication).
The following procedures were fully completed, successfully delivered and integrated onto their target completely to budget and timescale. The project covered design and test documentation, implementation in SDL of the RANAP procedures from 3G TS 25.413 for RAB assignment/release, Initial UE and IU Release, Direct Transfer, Overload Control, Reset, Error Indication, Reset Resource, CN Invoke Trace, Data Volume Report and CN Deactivate Trace. Standard MIB functions were also provided for central control of variable parameters

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