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1993年3月,日本NTT移动通信网络公司(NTT DoCoMo)在东京都市区首次采用了个人数字蜂窝(PDC)电信系统,这一系统是以1991年4月无线电系统研究发展中心(RCR)颁布的国内统一标准为基础的.该数字蜂窝系统能满足目前模拟蜂窝电话市场日益增长的需求,并能提供灵活、优质的服务.本文将论述PDC系统标准化的基本政策、制订过程及其范围.
In March 1993, Japan’s NTT DoCoMo first introduced a personal digital cellular (PDC) telecommunications system in the metropolitan area of Tokyo, based on the April 1991 Radio Systems Research and Development Center (RCR) Based on the unified domestic standards.The digital cellular system to meet the growing demand of the current analog cellular phone market, and can provide flexible and high quality services.This article will discuss the PDC system standardization of the basic policies, development process and its scope.