3GPP LTE关键技术浅析，LTE 改进并增强了空中接口技术，采用 OFDM 及 MIMO 技术作为其无线网络演进的唯一标准。 该文对 OFDM 技术及 MIMO 技术进行了分析，最后提出将OFDM 技术与 MIMO 技术相结合，从而消除由频率选择性衰落带来的影响，达到信息的高速和高可靠性传输。-The key technology of 3GPP LTE, LTE air interface improvements and enhanced technology, the use of OFDM and MIMO technology as the sole criterion for the evolution of wireless networks. This paper MIMO OFDM technology and analysis techniques, and finally proposed technology and MIMO OFDM technology, which eliminates the impact of frequency selective fading, to high-speed and high reliability of information transmission.