Evolution and demands of SoC in ITS and mobile communication systems

As a center of mobile multimedia of the 21st century, we are very much looking forward to the explosion of RandD and business of the next generation of mobile communication systems and the ITS (intelligent transport systems) because ITS will enable information oriented in the field of the road, traffic and vehicles, by using the most advanced technologies of mobile communications and devices, for various purposes such as decrease of traffic accidents, reduction of traffic jams, increase in efficiency of logistics and harmony with the Earth's environment This paper first briefly introduces evolution of mobile communications and ITS in ministries, industries and academia in Japan. Then core communication technologies for ITS are overviewed, such as spread spectrum CDMA, adaptive antenna array, and software radio or software defined radio. The demands on SoC (system on a chip) to carry out the core technologies are addressed.