3D beamforming modeling method based on NR-U/Wi-Fi coexistence system

A technology of beamforming and modeling methods, applied in diversity/multi-antenna systems, transmission systems, radio transmission systems, etc., can solve problems such as increased algorithm complexity, achieve reduced interference and algorithm complexity, accurate positioning, and improved The effect of total capacity and anti-jamming capability

Active Publication Date: 2022-02-08
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Notice that the idea of ​​using zero-forcing precoding can effectively reduce the interference between users. In the algorithm, a binary search method is used to find a downtilt angle that maximizes system efficiency. However, expanding the dimension from 2D to 3D will bring algorithm complexity increase

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  • 3D beamforming modeling method based on NR-U/Wi-Fi coexistence system
  • 3D beamforming modeling method based on NR-U/Wi-Fi coexistence system
  • 3D beamforming modeling method based on NR-U/Wi-Fi coexistence system

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Embodiment Construction

[0111] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0112] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention relates to a 3D beamforming modeling method based on an NR-U / Wi-Fi coexistence system, and belongs to the technical field of communication. According to the modeling method, a channel is decomposed into a horizontal dimension and a vertical dimension for a 5G multi-cell multi-user scene of an unlicensed frequency band. In the horizontal dimension beam forming, interference between adjacent cells is eliminated through prepositive precoding, and interference between users in the cells is eliminated through postpositive precoding. The vertical dimension beam forming enables the base station to more accurately position the user by expanding the dimension of the antenna array, thereby improving the total capacity and the anti-interference capability of the system, effectively reducing the interference between NR-U / Wi-Fi equipment and the algorithm complexity, and further improving the system performance.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a 3D beamforming modeling method based on an NR-U / Wi-Fi coexistence system. Background technique [0002] With the transition of mobile cellular communication from 4G to 5G, mobile data traffic will usher in a blowout growth. It is predicted that in 2022, the data traffic of the mobile Internet will increase by 1000 times compared with 2002, and wireless operators are suffering from unprecedented data traffic pressure worldwide. However, due to the scarcity of licensed frequency band resources and the increasing data traffic demand for greater mobile bandwidth, operators have turned their attention to unlicensed frequency bands. By migrating cellular technology from the licensed frequency band to the unlicensed frequency band, on the one hand, it can effectively alleviate the problem of data flow congestion on the licensed frequency band. The way the network can pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/22H04B7/0456H04B7/06H04J11/00
CPCH04W16/22H04B7/0617H04B7/0456H04J11/0026H04J11/005Y02D30/70
Inventor 张治中高俊邓炳光何港
Owner CHONGQING UNIV OF POSTS & TELECOMM
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