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越来越多运营商的支持,主流设备商推进的TDD和FDD LTE的融合,甚至于WiMAX都成为推动TD-LTE发展的动力自从10年前ITU确定3G技术的IMT-2000标准以来,3G便有两种基本形态:FDD和TDD。FDD在不同的频谱上提供上行和下行业务,而TDD则在同一频率上提供上行和下行业务。
More and more operators support the mainstream equipment manufacturers to promote the integration of TDD and FDD LTE, and even WiMAX have become the driving force to promote the development of TD-LTE Since 10 years ago ITU to determine the IMT-2000 standard for 3G technology, 3G There are two basic forms: FDD and TDD. FDD provides uplink and downlink services on different spectrums, while TDD provides both uplink and downlink services on the same frequency.