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3G向人们展示了一幅未来移动通信的美好蓝图:统一的无线接口,高达2M 的用户数据速率,全球漫游,全面的多媒体应用,多样化的业务,丰富的终端类型。它使人们相信,个人通信的时代即将来临,怀着对未来的憧憬,人们以巨大的热情、精力、财力投入到3G 系统与技术的研究与开发中,从而使它成为近几年全球移动通信领域的一个最热点。与此同时,整个电信网正在由电路交换为主,向全面提供多媒体业务的分组数据交换为主的方向发展,在这种转型中,第三代移动通信起着重要的引导与推动作用。虽然第三代移动通信系统无线接口井没有像人们最初期望的那样形成一个统一的标准,而是包含5种
3G to show people a beautiful blueprint for the future of mobile communications: a unified wireless interface, up to 2M user data rates, global roaming, comprehensive multimedia applications, diversified services, rich terminal types. It makes people believe that the personal communications era is coming, with the vision of the future, people with great enthusiasm, energy and financial resources into the 3G system and technology research and development, making it a global mobile communications in recent years One of the hottest spots in the field. At the same time, the entire telecommunications network is being dominated by circuit-switching, to fully provide multimedia services to the packet data exchange oriented development, in this transformation, the third generation of mobile communications plays an important role in guiding and promoting. Although the third generation mobile communication system wireless interface well did not form a unified standard as originally expected, but contains 5