Weight obtaining method and weight obtaining device of three-dimensional beam forming

A technology of three-dimensional beams and weights, which is applied in the field of wireless communication, can solve problems such as high complexity, and achieve the effect of reducing complexity, improving performance and coverage

Inactive Publication Date: 2013-06-12
ZTE CORP
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Problems solved by technology

Generally speaking, the antenna array that realizes 3D beamforming is a 2D planar array or a 3D cuboid array, and the number of array elements is relatively large. If all array elements are processed as a whole to obtain weights, a large The matrix performs operations such as eigenvalue decomposition, and the complexity is relatively high

Method used

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  • Weight obtaining method and weight obtaining device of three-dimensional beam forming
  • Weight obtaining method and weight obtaining device of three-dimensional beam forming
  • Weight obtaining method and weight obtaining device of three-dimensional beam forming

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specific Embodiment 1

[0098] This embodiment provides an example of a weight value acquisition method for three-dimensional beamforming based on a planar antenna array. planar antenna array Figure 9 shown. There are only two-dimensional antennas here, and the antenna dimension is a concept defined by the present invention for the convenience of describing antenna indexing and layering. For example, the length of the antenna array is one dimension, the width is one dimension, and the height is one dimension. The antenna array in this embodiment may be located on the X-Y plane. If the antenna indexes are arranged in a row-major order, that is, the first row is arranged first, then the second row, and finally the last row. Then dimension 3 represents the X axis, and dimension 2 represents the Y axis; if the antenna index is arranged in column-based order, that is, the first column is arranged first, then the second column, and finally the last column. Then dimension 3 represents the Y axis and dime...

specific Embodiment 2

[0119] This embodiment gives an example of a weight value acquisition method for three-dimensional beamforming based on a cuboid antenna array. Cuboid antenna array such as Figure 10 shown. There are three-dimensional antennas here, and the antenna dimension is a concept defined by the present invention for the convenience of describing antenna indexing and layering. For example, the length of the antenna array is a dimension, the width is a dimension, and the height is a dimension. For example, the indexes of the antenna array are at the same height, in row-major order, that is, the first row is arranged first, then the second row, and finally the last row. And the height is also arranged in order from low to high. Then dimension 1 represents height, dimension 2 represents columns, and dimension 3 represents rows. There are N on the communication station in dimension 3 T3 Antennas, N on dimension 2 T2 Antennas, the number of antennas in dimension 1 is N T1 . The numbe...

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Abstract

The invention provides a weight obtaining method of three-dimensional beam forming. The method includes: obtaining a whole information channel coefficient matrix between a communication station and a mobile station; extracting an information channel coefficient matrix of each dimension according to the whole information channel coefficient matrix, and calculating the weight of each dimension according to the information channel coefficient matrix of each dimension; and processing the weights of all the dimensions to obtain the weight of the three-dimensional beam forming. The invention further provides a weight obtaining device of the three-dimensional beam forming. Through the layering mode, the complexity of obtaining the weight of the three-dimensional beam forming is reduced, performance of a wireless communication system is improved, and coverage range of the wireless communication system is widened.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a weight value acquisition method and implementation device for three-dimensional beamforming (Three Dimension Beamforming, 3D BF). Background technique [0002] Beamforming is a signal processing technology. It is based on the principle of adaptive antenna. It uses the antenna array to weight each antenna unit through advanced signal processing algorithms, so that the array is aligned in the direction of the useful signal in real time, and the zero point is formed in the interference direction. Suppresses interfering signals. Thereby, the signal-to-noise ratio is improved, the system performance is improved, and the coverage of the system is increased. [0003] Traditional beamforming generally refers to two-dimensional beamforming, which only distinguishes mobile stations with different horizontal azimuth angles, as shown in Figure 1(a), while mobile stations with...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04W16/28
Inventor 肖华华朱登魁宁迪浩鲁照华
Owner ZTE CORP
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