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一、前言为了实现欧洲统一的移动通信系统,在由欧洲各国邮电部召开的欧洲邮电部会议(CEPT)上,成立了特别移动通信研究组(GSM),集中力量研究以900MHz频段为对象的移动通信方式。由西德和法国并列担任GSM中的主要任务的北欧各国(瑞典、挪威、芬兰、丹麦、冰岛)共
I. INTRODUCTION In order to realize a unified mobile communication system in Europe, a Special Mobile Telecommunication Research Group (GSM) was set up at the European Conference of Posts and Telecommunications (CEPT) held by the European Posts and Telecommunications Departments in Europe to focus on the movement in the 900 MHz frequency band way of communication. The Nordic countries (Sweden, Norway, Finland, Denmark and Iceland), which are jointly represented by Germany and Germany as the main tasks in GSM