联合国国际电信联盟正在研讨第三代携带电话的导入方案。这项方案的主要内容是:各国确保共同的专用电话波段;电话的中继方式为地面站和卫星两方使用的并用制,降低在城市使用的费用。国际电信联盟计划导入的第三代携带电话称为“未来公众地面移动通信系统”。至今用的移动电话,日本、美国和欧洲国家采用各不相同的方式。国际电信联盟计划把这些不 The United Nations International Telecommunication Union is discussing a third generation mobile phone import solution. The main contents of this program are: countries to ensure that a common dedicated telephone band; telephone relay means used by both the ground station and satellite and the use of the system, reducing the cost of use in the city. The third generation of cellular phones that the International Telecommunication Union plans to introduce is called “Future Public Land Mobile Communications System.” So far, mobile phones, Japan, the United States and European countries have adopted different approaches. International Telecommunication Union plans to put these no