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This paper generalizes the previous mobile communication systems from the first generation to the thirdgeneration, and presents the requirements of the future fourth generation mobile communication system (4G). Thenthe Internet-based 4G system is presented, which breaks through the close structure of the traditional ones. Finally,the key technologies of the Internet-based 4G system are discussed.

关键词：第四代移动通信系统 Internet 数字技术时分多址码分多址数据传输率

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维普期刊数据库

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