21世纪无线通信的频谱考虑与实现技术

Considerations on the Spectrum in 21th Century's Wireless Communication and Technologies to Realize It

无线通信可能是下一个世纪的主要接入模式。国际移动通信－２０００系统（ＩＭＴ—２０００）和无线异步传输模式（ＷＡＴＭ）是两种不同的但又可以互操作的，能够提供高速无线接入的手段。无线电频谱资源的限制和无线信道传播对系统发展的特殊影响是必须考虑的问题。本文对上述系统的频谱需求和实现技术进行了论述，并对目前欧洲和亚太地区的频谱指配情况做了简要介绍。

Wireless communication might be the major access mode in the next century, IMT-2000 and WATM, two different but interoperative systems, can provide high-speed wireless access means. Such problems as the limitation of wireless spectrum resources and the special influences of wireless channel transmission on the systems must be taken into accounts. This article deliberates on the spectrum demands of the systems and the technologies to realize it. It also gives a brief introduction to the spectrum arrangement in Europe and the Asian-Pacific Regions.