The invention discloses a eigenbeam TD-LTE system based on time frequency pretreatment forming method is characterized by comprising the following steps: (1) using the uplink frequency information of uplink channel estimation, the estimation of uplink channel information can be used to compute the weight vector to form downlink beam; (2) uplink channel information the method of frequency estimation using filter block when filtering; (3) the information filtered through the channel of any characteristic space vector Si frequency correction: first to calculate the time of two adjacent phase difference between frequency block, then get the correction coefficient K, the correction coefficient K is multiplied by Si and get space vector modified by the modified (4) instead of Si, features of beamforming weighting matrix calculated an equivalent channel information, and ultimately eigenbeamforming.
【技术实现步骤摘要】
【技术保护点】
１．一种ＴＤ－ＬＴＥ系统中基于时频域预处理的特征波束形成方法，其特征在于，包括下述步骤：（１）运用上行导频信息估计上行信道，该估计的上行信道信息可用于对下行波束形成权矢量的计算；（２）利用时频块滤波的方法对估计出来的上行信道信息进行滤波，其滤波公式为：（ｍａｔｈ）??（ｍｒｏｗ）?（ｍｉ）ＨＨ（／ｍｉ）?（ｍｒｏｗ）?（ｍｏ）（（／ｍｏ）?（ｍｉ）ｘ（／ｍｉ）?（ｍｏ），（／ｍｏ）?（ｍｉ）ｙ（／ｍｉ）?（ｍｏ））（／ｍｏ）?（／ｍｒｏｗ）?（ｍｏ）＝（／ｍｏ）?（ｍｕｎｄｅｒｏｖｅｒ）?（ｍｉ）＆Ｓｉｇｍａ；（／ｍｉ）?（ｍｒｏｗ）?（ｍｉ）ｍ（／ｍｉ）?（ｍｏ）＝（／ｍｏ）?（ｍｏ）－（／ｍｏ）?（ｍｆｒａｃ）?（ｍｒｏｗ）?（ｍｉ）Ｍ（／ｍｉ）?（ｍｏ）－（／ｍｏ）?（ｍｎ）１（／ｍｎ）?（／ｍｒｏｗ）?（ｍｎ）２（／ｍｎ）?（／ｍｆｒａｃ）?（／ｍｒｏｗ）?（ｍｆｒａｃ）?（ｍｒｏｗ）?（ｍｉ）Ｍ（／ｍｉ）?（ｍｏ）－（／ｍｏ）?（ｍｎ）１（／ｍｎ）?（／ｍｒｏｗ）?（ｍｎ）２（／ｍｎ）?（／ｍｆｒａｃ）?（／ｍｕｎｄｅｒｏｖｅｒ）?（ｍｕｎｄｅｒｏｖｅｒ）?（ｍｉ）＆Ｓｉｇｍ...
【技术特征摘要】
【专利技术属性】
技术研发人员：晏春燕，邓科，殷勤业，王文杰，
申请(专利权)人：西安交通大学，
类型：发明
国别省市：87
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