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Weight acquisition method and device for three-dimensional beamforming

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: 2018-02-02
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

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  • Weight acquisition method and device for three-dimensional beamforming

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specific Embodiment 1

[0098] This embodiment provides an example of a method for obtaining weights of three-dimensional beamforming based on a planar antenna array. Planar antenna array Picture 9 Shown. There are only two-dimensional antennas. The antenna dimension is a concept defined by the present invention to facilitate the description of antenna index 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 of this embodiment may be located in the X-Y plane. If the antenna indexes are arranged in a row-major order, that is, the first row is first, then the second row, until the last row. Then the dimension 3 represents the X axis, and the dimension 2 represents the Y axis; if the antenna index is arranged in column-oriented order, that is, the first column is arranged first, and then the second column is arranged until the last column. Then dimension 3 represents the Y axis, and dimension 2 repr...

specific Embodiment 2

[0116] This embodiment gives an example of a method for obtaining weights of three-dimensional beamforming based on a rectangular parallelepiped antenna array. Cuboid antenna array Picture 10 Shown. There are three-dimensional antennas. The antenna dimension is a concept defined by the present invention to facilitate the description of antenna index and layering. For example, the length of the antenna array is one dimension, the width is one dimension, and the height is one dimension. For example, if the index of the antenna array is at the same height, the rows are in the main sequence, that is, the first row is first, then the second row, until the last row. 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. Communication station has N on dimension 3 T3 Antenna, N on dimension 2 T2 Antenna, the number of antennas on dimension 1 is N T1 . The number of antennas in the ...

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Abstract

The present invention provides a weight value acquisition method for three-dimensional beamforming, including: acquiring the overall channel coefficient matrix between the communication station and the mobile station; extracting the channel coefficient matrix of each dimension according to the overall channel coefficient matrix, and according to each The channel coefficient matrix of a dimension calculates the weight of the dimension; the weights of all dimensions are processed to obtain the weight of the three-dimensional beamforming. The present invention also provides a weight acquisition device for three-dimensional beamforming. The present invention reduces the complexity of acquiring three-dimensional beam forming weights by means of layers, and improves the performance and coverage of the wireless communication system.

Description

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

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Application Information

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