Wireless Communications
Market characteristics
The wireless communication market is defined by a rapid
increase of functionality. Mobile phones have been transferred to multi-media
communication terminals with an integrated data environment of office and
private data. Over the last years this has resulted in a dramatic change for our
customers concerning the demands on product development with major impacts for
their organizations. Parts of components and complete products are
subcontracted to partners. Also partnerships with dedicated development
organizations like Centric TSolve have been build up in
order to support their own development departments.
Centric TSolve Concepts
Centric TSolve focuses in the Wireless Communication Area on these competence areas:
- GSM
- (E)GPRS
- WCDMA
- Wireless LAN
- Bluetooth based systems
Centric TSolve is able to fill-in the complete modem development of the Wireless Communication technologies,
from RF engineering, Baseband engineering, protocol stack development, validation of hardware and software components and development of test and validation environments for these.
Wireless Communications
Hardware Design
Centric TSolve is able to co-operate with its partners on hardware design
for product or module development. Centric TSolve also delivers these
competences on project and consultancy basis.
Our hardware design team has a wide experience in telecom products,
ranging from handset design, interface-design to complex processor
boards and power conversion. We can support you with study-,
specification-, design-, and verification work.
Hardware experience:
- RF Design of complete transceivers up to 2.4GHz (DECT, GSM, UMTS,W-LAN, Bluetooth)
- Analogue electronics design
- Digital electronics design (processors boards, FPGA, fast interfaces)
- Audio and acoustics design
- LCD and touch screens
- Power control circuits
- EMC design and verification.
- PCB design
- Prototype manufacturing, volume manufacturing preparation
- Product sustaining, field return analysis of defect products and components.
We have partners for:
- Analogue- and digital ASIC design
- Reliability engineering and testing
- Mechanical design
Methods and tools experience:
- PWB design: PCB-Elegance, Mentor-Graphics Boardstation + RE, Zuken CR5000
- RF simulation: ADS and Aplac
- Communication testers, CMU200 (GSM/GPS/EDGE/BT/DECT)
- Signal generators, SMIQ, ESG
- Spectrum Analyser
- Logic analyser (Agilent)
- Oscilloscopes (Le Croy)
- Temperature chambers
- Test set-up controlling equipment
- Full equipped to modify high-end electronic devices
- Test automation with HP-VEE
- EMC-test accessories: clamp, LISN, simulators.
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Wireless Communications
Software Design
Centric TSolve is a company that is specialized in embedded software
development for wireless communication technologies.
Centric TSolve is
focusing in this segment on the driver software, protocol stacks and middleware for products like Mobile phones,
Cordless phones, WebPads, Carkits, WLAN products, etc.
Software experience
- Protocol stack development for GSM, (E)GPRS, UMTS, Bluetooth, DECT
- DSP SW design and integration
- Drivers for specific interfaces (USB, IrDA, etc.)
- Porting to specific chipsets/HW platforms
- Software integration
- Embedded system design
- Simulation
Operating systems
- Nucleus
- Embedded Linux
- Symbian
Methods and tools experience
- Programming languages and related tools
- C, C++, Java, assembler
- TTCN, Rational Test RT, Rational rose RT, PureCoverage, Telelogic SDL
- Version Control and Change Control
- CM Synergy, Change Synergy
- ClearCase, ClearQuest
- PVCS
- CVS
- Perforce
- TestTrack Pro
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Wireless Communications
Verification and Validation Services
In the development process of telecom products the execution
of measurements on prototypes is an important part of the work.
The goal of measurements is to verify the design of a product,
prove compliance to the standard and to monitor the manufacturing
processes and component quality.
For products that are manufactured
in high volumes this means that during development the quantities of
products that need to be measured are high. Data has to be gathered
from a reasonable amount of products, built with components from
several suppliers.
Centric TSolve deliver these verification and validation (pre-approval)
services for both software and hardware. Centric TSolve is able to
deliver these services as a complete package to its customers.
Testing experience
- Protocol stack testing for GSM, (E)GPRS, UMTS, Bluetooth
- System testing (Alpha, Beta testing)
- Field testing
- Components and modules performance testing
- Performance testing
- Reliability testing
- EMC testing
- Environmental testing
- Type approval support
For hardware validation (DECT, GSM, UMTS, Bluetooth, WLAN) these services consists of:
- RF measurements
- TX measurements
- Harmonics, spurious signals
- Output power and burst timing
- Phase frequency error (EVM)
- Switching spectrum modulation
- RX measurements
- Sensitivity
- Co-and adjacent channel rejection
- Blocking , in-band & out-band
- AM suppression Intermodulation
- Baseband measurements
- Power consumption
- Timing verification (memory, processor, LCD, MMC, etc.)
- Signal integrity verification
- Second source component verification
- Root-cause analysis
- Reliability and environmental testing
- EMC testing
- Type approval test support
These services are executed by experienced design-engineers,
which are able to interpret measurement results and identify reasons of problems.
Centric TSolve is equipped in their Development Centres with equipment required
to execute these measurements. The list of equipment can be found at the “Wireless Communication: Hardware Design” index.
For software validation, these services consist of:
Definition of test process and test approach (verification and validation plan)
- Generation of test specification (based on product requirements)
- Management of cost effective test project (set-up test team, test roles, environment etc.)
- -Automated- execution of test cases
- Defect analysis on hard and software
- Multi-level reporting
- Support of development department concerning identified failures
The test projects are managed and controlled by experienced staff with in-depth knowledge of Wireless Communication.
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