论文部分内容阅读
在通讯新技术浪潮不断掀起的今天,各种通信手段多管齐下,微波、扩频、卫星等通信方式都占有一席之地。电信运营商对于通讯传输的速度、距离、通信质量以及初期建设成本的要求日益提高。存这种情况下,就需要有一种高速率、大容量、高可靠性、低投入的全新的通信手段为我国的电信市场服务。 本地多点分配业务LMDS(Local Multipoint Distribution Services)是一种新开发的宽带无线接入系统,它具有更高带宽和双向数据传输的特点,可提供多种宽带交互式数据及多媒体业务,且成本进一步降低,使用
Nowadays, when the wave of new communication technologies continues to rise, all kinds of communication means are under multi-pronged approach. Microwave, spread spectrum and satellite communication all occupy a place. The requirements of telecom operators for the speed, distance, communication quality and initial construction cost of communication transmission are increasing day by day. In this case, there is a need for a new high-speed, high-capacity, high reliability, low investment of new means of communication services for China’s telecommunications market. Local Multipoint Distribution Services (LMDS) LMDS (Local Multipoint Distribution Services) is a newly developed broadband wireless access system with higher bandwidth and two-way data transmission, providing a wide range of broadband interactive data and multimedia services at a cost Further reduce, use