A Simulation Method to Realize Spatial Consistency of Millimeter Wave Channels

A consistent, millimeter-wave technology, applied in the millimeter-wave field, which can solve the problems that modeling cannot be well guaranteed, and the smooth evolution of small-scale parameters cannot be guaranteed.

Active Publication Date: 2021-05-18
BEIJING JIAOTONG UNIV
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Problems solved by technology

The disadvantage of this method is that it cannot guarantee the smooth evolution of small-scale parameters
Although there are some research results on the correlation of small-scale parameters, these research results cannot guarantee the modeling of the correlation between large-scale parameters and small-scale parameters of the channel in the entire trajectory when the terminal moves a long distance.

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  • A Simulation Method to Realize Spatial Consistency of Millimeter Wave Channels
  • A Simulation Method to Realize Spatial Consistency of Millimeter Wave Channels
  • A Simulation Method to Realize Spatial Consistency of Millimeter Wave Channels

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Embodiment Construction

[0081] 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.

[0082] 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 simulation method for realizing the spatial consistency of the millimeter wave channel. In this method, in order to realize the continuous change of millimeter-wave channel parameters when the terminal moves, the moving trajectory is segmented. The continuity of inter-segment channel parameters is ensured by describing the correlated shadow fading and LOS / NLOS conditional grid diagrams and determining the number of multipath clusters in the remaining segments based on the M-step 3‑state Markov chain. For small-scale parameters within a segment, the geometry-based method enables continuous updating of angle, delay, power, and phase of multipath components. The present invention can carry out correlation modeling of large-scale channel parameters and smooth evolution of small-scale parameters for millimeter-wave channels, and then realize the simulation of the spatial consistency of millimeter-wave channels, laying a foundation for describing millimeter-wave channels, and at the same time, providing a basis for 5G millimeter-wave The simulation of the channel model provides an important basis.

Description

technical field [0001] The invention relates to the technical field of millimeter waves, in particular to a simulation method for realizing spatial consistency of millimeter wave channels. Background technique [0002] Nowadays, with the rapid development of 5G and the continuous improvement of carrier frequency, the traditional channel model can no longer simulate the millimeter-wave channel, and it is necessary to realize the simulation of the millimeter-wave channel according to the characteristics of the millimeter-wave channel. Development matters. In the mmWave frequency band, when the terminal moves, the Doppler frequency shift will become more serious than that in the low frequency band, resulting in a decrease in the channel coherence time, and the parameters such as path loss, delay, angle and power of the multipath component in the channel vary with the The moving distance changes rapidly, and both large-scale parameters and small-scale parameters need to be upda...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/391
CPCH04B17/3912
Inventor 何睿斯元媛艾渤钟章队陈瑞凤
Owner BEIJING JIAOTONG UNIV
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