Future refers to the future general wireless environment research plan 200 1. The "National 863 Plan" launched the Future General Wireless Environment Research Plan (referred to as the Future Plan), which is a research plan for the development of mobile communication in the last three or four generations (B3G/4G). Its main goal is to face the development trend and demand of wireless communication field in the future 10, focus on breaking through the key technologies of the new generation mobile communication system, and gradually establish a general radio environment integrating large-scale cellular mobile communication, regional broadband wireless access and short-distance wireless connection, thus creating conditions for the leap-forward development of China's wireless and mobile communication industry in the future. Since the "National 863 Plan" was launched in 200 1, considerable scientific research achievements have been made by 2006, and more than 100 mobile communication technology invention patents have been applied at home and abroad. In the five years since the implementation of the future plan, nearly 1,000 senior R&D mobile communication talents have been trained, which has significantly improved the sustainable development capability of China mobile communication. B3G/4G research is not only a scientific research project, but also an experimental system to promote the development of China's future communication industry, involving intellectual property rights, patents, international cooperation and other issues, which can lay the foundation for the next generation of mobile communication standardization in China. On the research of B3G/4G, China is in step with the world, while the demonstration and demonstration of B3G/4G outfield technology is in the leading position in the world. In the research of 3G technology, China is 8 ~ 10 years behind foreign countries, and the research of 4G technology has been synchronized with the international, which has laid the foundation for us to have a better development prospect.