移动通信和个人通信发展动向

Developing Trends of Mobile Communications and Personal Communications

本文陈述了以欧、美、日为代表的移动通信三大技术走向,着重分析了目前第二代系统中蜂窝通信、PCS、无绳电话和移动卫星通信等各个分支的发展状况;介绍了欧美在从模拟蜂窝向数字蜂窝过渡时采用的策略,提出了实现第三代系统的3个步骤;最后,分析了移动通信的市场趋势。

The paper describes the three technical development orientations of mobile Communications represented by the European, American and Japanese technical systems, analyses the development of cellular Communications, personai Communications svstems, cordless telephone and mobile satellite Communications in the sec-ond generation svstems, introduces the strategies adopted for the transition from analog cellular svstems to digital ones, proposes the three stages for the implementation of the third generation svstems, and analyses the market trends.