一.概述 无线本地环路系统又称无线固定接入系统,是近几年来随着人们对通信业务的需求不断增加,现有市话系统“有机无线”的矛盾日益突出的情况下而发展起来的一种新型的无线通信系统。这种系统采用无线方式,代替了传统的市话网中由交换机到用户之间的模拟双绞线,铜缆,大大改善了市话本地网建设中的投资强度大,建设周期长,网络维护困难 I. Overview Wireless local loop system, also known as wireless fixed access system, is in recent years with the increasing demand for communications services, the existing local system “organic and wireless” increasingly prominent contradictions developed A New Type of Wireless Communication System. This system uses wireless, instead of the traditional local network from the switch to the user between the analog twisted pair, copper, greatly improving the local telephone network construction investment intensity, long construction period, network maintenance difficulties