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本文主要内容有以下几部分:为何要发展第三代移动通信;第三代移动通信总目标和使用频谱的考虑;第三代移动通信支持的业务;第三代移动通信的网络结构;第三代移动通信地面系统的传输性能;第三代移动通信卫星运行环境;几个典型国家的第三代移动通信系统方案简述,全文拟分三次刊出。本文对第三代移动通信作了较全面系统的阐述。移动通信是通信产业发展的热点,特别是第三代移动通信作为新一代的移动通信,引起了业内、外人士的普遍关注,为此我刊特约希玉久先生撰发了此文。
The main contents of this paper are the following parts: why to develop the third generation mobile communication; the third generation mobile communication total target and the use of spectrum considerations; third generation mobile communication support business; third generation mobile communication network structure; third On behalf of mobile communications ground system transmission performance; the third generation of mobile communications satellite operating environment; several typical countries, the third generation mobile communication system program briefing, the full text to be published in three. This article made a more comprehensive and systematic exposition of the third generation mobile communication. Mobile communication is a hot spot in the development of the telecommunications industry. In particular, the third generation of mobile communications, as a new generation of mobile communications, has aroused widespread concern in the industry and abroad.