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Multi-beam channel modeling method based on propagation graph theory

A channel modeling and propagation graph technology, which is applied in the field of multi-beam channel modeling based on propagation graph theory, and can solve problems such as incompatible beamforming and inability to channel modeling.

Active Publication Date: 2021-07-23
BEIJING JIAOTONG UNIV
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Problems solved by technology

[0006] Embodiments of the present invention provide a multi-beam channel modeling method based on propagation graph theory, which is used to solve the problem that the existing propagation graph channel modeling theory is not compatible with beamforming and cannot accurately build channels in multi-antenna scenarios. model problem

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  • Multi-beam channel modeling method based on propagation graph theory
  • Multi-beam channel modeling method based on propagation graph theory
  • Multi-beam channel modeling method based on propagation graph theory

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Embodiment Construction

[0057] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0058] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...

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Abstract

The invention provides a multi-beam channel modeling method based on a propagation graph theory, which corrects propagation path gains related to a transmitting and receiving end by solving gains of a transmitting and receiving end antenna array at various angles, and divides scatterers into a static discrete scattering point set and a dynamic discrete scattering point set in consideration of mobility of obstacles, and different scattering times are considered for two different scattering point sets to construct a multi-beam channel model based on a propagation graph theory. According to the method, the defect that beam forming is not considered in an existing propagation graph channel modeling theory is overcome, and the accuracy of channel modeling is improved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a multi-beam channel modeling method based on propagation graph theory. Background technique [0002] In 2019, 5G commercial licenses will be issued, and my country has officially entered the first year of commercial use. As one of the key technologies in 5G, multiple-input multiple-output (MIMO) technology can greatly increase the data rate and frequency band utilization by utilizing space resources in the case of limited bandwidth, thus attracting academia and industry. extensive attention. The effect of MIMO technology on capacity improvement is mainly related to its channel propagation characteristics. Therefore, accurately and effectively establishing a MIMO channel simulation model that reflects real channel characteristics is important for the optimization of MIMO system models, subsequent signal processing algorithms, and evaluation of system performance. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/391H04B7/06
CPCH04B17/391H04B7/0617
Inventor 张嘉驰刘留谈振辉周涛王凯
Owner BEIJING JIAOTONG UNIV
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