To increase the added value of Taiwan communication industry, we need to master the intellectual property of the key technologies and develop the high value-added systems and applications. Based on the current ability of Taiwan WiMAX industry, this project develops the next generation mobile communication technologies including 4G femtocell chip technology, WiMAX ASN gateway system software, IMT-A mobile access RF technology and high speed mobile access technology. We also plan to build up the WiMAX trial network and experimental platform of Taiwan high-speed rail. Through the real WiMAX system deploying, we can refine the technologies of the developing in this project, and led Taiwan industry toward the developing of the high value-added integration systems and application services.