大规模MIMO中预编码设计开发，3D的DFT码本。(The pre coding design and development of large scale MIMO, the DFT codebook of 3D.)

给出了DFT码本的构造方法以及SVD分解获取最佳预编码，接收端使用MMSE(The construction method of DFT codebook and SVD decomposition are given to obtain the best precoding. The receiving end uses MMSE.)