Analysis of common structure and software download for software defined radio

The mode switching and software downloading is very important to software defined radio (SDR). This paper proposes a new idea for the software reconfiguration with over-the-air download. We present a new method for implementing the function module switching among mobile systems employing the combination of common algorithm structure and appropriate parameters. We describe the parameter expression for several function modules and analyze the real-time issue for software downloading and module switching in software defined radio.