上传者: 43934844
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上传时间: 2022-06-29 19:05:38
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文件类型: DOC
移动通信发展历程与趋势 摘要:本文简单讲述了移动通信的发展历程,将其分成五个阶段。详述了1到4G通信 技术的特点,主要技术、性能指标和关键技术及相应的优缺点,并对各个阶段的技术进 行了比较;然后分析了世界移动通信的整体发展趋势。最后给出我国的移动通信方面的 发展历程,我国移动通信网络的规模和用户总量均居世界第一。 关键词: 移动通信 发展历程 趋势 GSM CDMA History and Trend of Mobile Communication Abstract: This paper briefly introduces the development of mobile communication.And put it into five periods. It also tells us the special parts of mobile communication from the first to fourth generation and the difference between them. Then the trend of its development i