Method and system for transmitting data based on random beam shaping
A data transmission method and beamforming technology, applied in baseband system components, multi-frequency code systems, diversity/multi-antenna systems, etc.
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[0053]The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0054] The flow of a data transmission method based on random beamforming in an embodiment of the present invention is as follows figure 2 shown, including the following steps:
[0055] In step s201, the base station generates a beamforming unitary matrix C in which the amplitude of each element is constant and the phase varies randomly. The specific process is:
[0056] At the start time t of the training period, the base station randomly generates M phases θ uniformly distributed in the range [0, 2π) t =[θ 1 θ 2 …theta M ];
[0057] The base station generates an M×M dimensional Fourier matrix
[0058]
[0059] where w=e -j2π / M ;
[0060] The phase vector θ ...
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