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美国个人通讯网络公司(下简称PCN公司),系美国米利考姆(MILLICOM)下属的一家子公司,专从事个人通讯网络的研究和发展工作。该公司于1990年向美联邦通讯委员会就发展先进的个人通讯网络提出了申请。在它的申请中,比较详细地描绘了未来个人通讯网络系统的方案,现部分摘录如下,仅供读者参考。个人通讯网络(下称PCN)对于移动的和固定的数字通讯传输技术来说前进了一大步。它将采用智能网络结构和先进的调制技术,通过小区基站,为小型轻量低功耗无绳终端提供话音和数据传输业务。其中,也包括综合数据业务网(ISDN)的服务。PCN由于应用小区
The U.S. personal communications network company (PCN), a subsidiary of MILLICOM in the United States, specializes in the research and development of personal communications networks. The company filed an application with the Federal Communications Commission in 1990 for developing an advanced personal communications network. In its application, a more detailed description of the future of personal communication network system program, the following is excerpted below, for your reference. Personal communications networks (PCNs) make a big leap forward for mobile and fixed digital communications technologies. It will use intelligent network architecture and advanced modulation techniques to provide voice and data transmission services to small, lightweight, low-power cordless terminals through cell sites. Among them, it also includes Integrated Data Services Network (ISDN) services. PCN due to the application cell