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LMDS(localmultipointdistributionservice,本地多点分布业务)是当前最受运营商青睐的固定无线宽带技术之一,它支持包括语音、数据、互联网、图像及视频在内的多种业务,能够满足固定的或者突发的带宽需求,被形象地称为“无线光纤”。文中简单介绍了LMDS技术现状、系统构成及其可以提供的各种业务类型,分析了在LMDS网络规划时所需要考虑的问题。结合江苏通信在常州进行的商用试验,总结了LMDS在苏南实际应用环境中遇到的问题,提出了增强系统性能、扩展系统应用的建议。
LMDS (local multipoint distribution service) is one of the most popular fixed-line wireless broadband technologies currently supported by operators. It supports multiple services including voice, data, Internet, video and video, and can meet fixed or burst The bandwidth requirements of the hair, is vividly called “wireless fiber ”. In this paper, the current situation of LMDS technology, the system structure and the types of services it can provide are introduced briefly. The problems to be considered in the LMDS network planning are analyzed. Combined with the commercial tests carried out by Jiangsu Communication in Changzhou, the problems encountered by LMDS in practical application in southern Jiangsu were summarized. Suggestions for enhancing the system performance and extending the system application were put forward.