Seoul – According to data released by the Korea Communications Commission (KCC), the level of Korea’s fourth-generation mobile technology is one year behind that of the US, while Japan is ahead of Korea by more than six months. The areas of weakness in Korea’s technology are in the system sector and the service platform sector, each shown to be behind US technology by over a year. On the other hand, Korea’s 4G mobile technology was found to be ahead of China’s by almost two and a half years.