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数字移动通信技术是集当代数字通信、计算机、微电子三大领域技术,以及融无线通信和数字交换技术为一体的高科技技术。欧洲在开发数字移动通信GSM系统中,投入了几十亿美元和7年多时间,充分体现了系统的复杂性和技术难度。国家计委、邮电部于1992年6月正式下达了“数字移动通信技术研究”的攻关任务,邮电部第一研究所承担了攻关项目中,除手机以外的
Digital mobile communications technology is a set of contemporary digital communications, computers, microelectronics in the three fields of technology, as well as financial and wireless communications and digital switching technology as one of the high-tech technology. Europe has invested billions of dollars and more than seven years in developing the digital mobile communications GSM system, fully embodying the system’s complexity and technical difficulty. State Planning Commission, Ministry of Posts and Telecommunications in June 1992 formally issued the "digital mobile communications technology research tasks, the Ministry of Posts and Telecommunications Institute of the first commitment to research projects, with the exception of mobile phones