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信息产业部日前发布了《数字集群移动通信系统体制》行业标准。 从90年代末期开始,美欧的数字集群系统逐步代替模拟集群系统,集群专用网和共用网两个市场都得到很快的发展,数字集群呈现良好的发展态势。由信息产业部电子七所等二十余个单位组成的体制标准工作组从1997年开始关注国际数字集群技术的发展。在分析研究国际电信联盟推荐的七种数字集群体制的基础上,筛选出三种候选体制,对候选系统进行了考察和系统设备测试,并与有关厂商展开多轮知识产权谈判。通过评估技
Ministry of Information Industry recently released the “digital trunking mobile communication system” industry standard. From the late 1990s, the digital trunking system in the United States and Europe gradually replaced the analog trunking system. Both the trunking private network and the public network have enjoyed rapid development. Digital trunking has shown a good momentum of development. The Institutional Standards Working Group composed of more than twenty units such as Electronics Seven of the Ministry of Information Industry started to pay attention to the development of international digital trunking technology from 1997. On the basis of analyzing and studying the seven digital trunking systems recommended by the International Telecommunication Union, three candidate systems were selected, the candidate systems were investigated and the system equipment tests were conducted. Several rounds of intellectual property negotiations were conducted with relevant manufacturers. Through the assessment skills