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5G large-scale antenna array beamforming device and method

A large-scale antenna and beamforming technology, applied in diversity/multi-antenna systems, radio transmission systems, space transmit diversity, etc., can solve the problems of high cost, poor practicability, and high complexity of antenna arrays, and achieve reduced system complexity and cost effect

Active Publication Date: 2018-08-10
东莞市思恩泰克电子科技有限公司
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a 5G large-scale antenna array beamforming device and method to solve the problems of high cost, high complexity and poor practicability of existing antenna arrays

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  • 5G large-scale antenna array beamforming device and method
  • 5G large-scale antenna array beamforming device and method
  • 5G large-scale antenna array beamforming device and method

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Embodiment 1

[0028] Embodiment 1: Assume that the number of common antenna units M=64, and the number of data streams is N=8, then adopt the following figure 1 The number of phase shifters required by the full connection method shown is 64*8=512, and the number of phase shifters required by this method is: 8+8*2+...+8*8=288. It can be seen that the number of required phase shifters is greatly reduced.

Embodiment 2

[0029] Embodiment 2: Assuming that the number of all antennas M=256, and the number of data streams is N=16, then the number of phase shifters required by the full connection method is 4096, and the number of phase shifters required by this method is: 16+16*2+ ...+16*16=2176.

[0030] In addition, other antennas and radio frequency link configurations are compared in the following table:

[0031]

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Abstract

The invention discloses a beamforming device and method suitable for a 5G large-scale antenna array. The method comprises the following steps: precoding a baseband data flow and outputting a precodingmatrix FB, wherein the output end of the precoding matrix FB is respectively connected to N radio frequency links through different data transmission lines, the output end of each radio frequency link is connected to an antenna array unit through the data transmission line, and a phase shifter is arranged between each output line of each radio frequency link and the antenna array unit; the antenna array unit is uniformly divided into N groups; and the phase shifter forms a simulate precoding matrix FR. The large-scale antenna array is grouped through the method disclosed by the invention, thequantity of the phase shifters connected with each group of antenna unit are in step distribution, the phase shifters in step distribution are respectively connected with the radio frequency link, and the system complexity and cost can be effectively reduced due to the great reduction of the quantity of the phase shifter required by the whole system.

Description

【Technical field】 [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a beamforming device and method suitable for 5G large-scale antenna arrays. 【Background technique】 [0002] On December 20, 2017, at the 78th plenary meeting of 3GPP RAN, the first version of 5G NR (New Radio) was officially frozen and released, marking an important milestone in 5G standardization. Relevant manufacturers and institutions in China not only play an important role in standard organizations such as 3GPP, but also lead the world in technical testing and spectrum delineation. The 5G technology research and development experiment led by the IMT-2020 promotion group has shifted its focus to product development, verification and industrial collaboration before 5G commercial use, and the interconnection and interoperability work before commercial use has been carried out. Relevant domestic manufacturers have carried out the second phase of tes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06
CPCH04B7/0617
Inventor 马延军代新冠任超吴舒婷李国民朱代先张烨张龙妹李文峰
Owner 东莞市思恩泰克电子科技有限公司