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Fourth generation (4G) mobile communications should not focus only on the data-rate increase and new air interface. 4G mobile should instead converge the advanced wireless mobile communications and high-speed wireless access system into an open wireless architecture (OWA) platform which becomes the core of this emerging next generation mobile technology. Based on this OWA model, 4G mobile will deliver the best business cases to the wireless and mobile industries, i.e. TD-SCDMA/ WLAN/ GPRS 3-in-1 product, WCMDA/OFDM/WLAN 3-in-1 product, etc. Asia is the most dynamic market of new generation mobile communications with over $50 billion investment in the next five years. The 4G mobile technology - convergence of wireless mobile and wireless access, will definitely drive this growth.