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第三代移动通信（３Ｇ）的国际移动通信系统 -２０００（ＩＭＴ-２０００）的附加频谱在２０００年世界无线电通信会议（ＷＲＣ -２０００）上获得通过 ,给全世界部署３Ｇ网络和业务的移动通信行业开了绿灯。ＩＭＴ-２０００准备基于国际电信联盟（ＩＴＵ）标准规定的无线接口?
The additional spectrum of the International Mobile Telecommunications System-2000 (IMT-2000) for the third generation mobile communications (3G) was adopted at the 2000 World Radiocommunication Conference (WRC-2000) to provide mobile communications to deploy 3G networks and services throughout the world The industry opened the green light. IMT-2000 Prepares wireless interfaces based on International Telecommunication Union (ITU) standards?