Important Disclaimer The project development described here represents the experience of 74ze Engineering's team members before the creation and incorporation of 74ze Engineering, Inc.

MUD implementation for 3GPP base-station prototype development

CLIENT

A Canadian communications company

CHALLENGE

To develop and implement a MUD (multi-user detection) algorithm in a 3GPP (CDMA) base station system to provide communication, control, and monitoring of mobile users, as well as communication with a PSTN. The implementation must be proven in a computer simulation model and then in hardware. Objective was to spark investor interest. (1999)

SOLUTION

• Worked with customer to analyze their requirements and to set milestones
• Assembled staff of 10 engineers (a DSP software designer, FPGA designers, PCB designers, and C programmers)
• Solidified project communication channel by working at client-site temporarily and through client visits
• Created a software model and simulated
• Developed a hardware prototype using
• TI TMS320C62x DSP processors and Code Composer Studio
• Xilinx FPGAs and Alliance suite and Synplicity's Synplify
• ModelSim, Aldec, and Synopsys tools
• an RF unit for transmitting/receiving
• a PC to evaluate the performance characteristics using CVI Lab/C++

BENEFIT

A 3GPP Base Station Modem prototype was successfully created and demonstrated improved performance characteristics to investors within one-year of the start date. The prototype implemented a unique MUD algorithm, which showed a significant decrease in the bit error rate and an improvement in the signal-to-noise ratio.