Multi-stream codebook design method based on FD-MIMO

The invention discloses a multi-stream codebook design method based on FD-MIMO, and relates to the technical field of wireless communication, and the method comprises the following specific steps: S1, designing a single-stream FD-MIMO codebook through user distribution characteristics; s2, a multi-stream FD-MIMO codebook is formed by expanding the code words of the single-stream FD-MIMO codebook, and a multi-stream FD-MIMO codebook is formed; s3, selecting a code word with the maximum correlation with a channel from the multi-stream FD-MIMO codebook, and carrying out quantization on the channel to obtain quantized channel state information; s4, further designing a precoding algorithm according to the quantized channel state information; and S5, designing a self-adaptive fluxion transmission scheme. The method solves the problems that in the prior art, the design complexity of a multi-stream transmission codebook is too high, the calculation requirement for hardware equipment is too high, and the method is not