Simulation method for realizing millimeter wave channel space consistency
A simulation method and consistent technology, applied in the field of millimeter waves, can solve the problems that the smooth evolution of small-scale parameters cannot be guaranteed, and the modeling cannot be well guaranteed.
Active Publication Date: 2020-11-10
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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[0080] 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 designate 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.
[0081] 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 unders...
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The invention provides a simulation method for realizing millimeter wave channel space consistency. According to the method, in order to realize continuous change of millimeter wave channel parameterswhen the terminal moves, segmentation processing is carried out on a moving track. By depicting shadow fading and LOS / NLOS condition grid diagrams with correlation and determining the number of multipath clusters of remaining segments based on an M-step 3-state Markov chain, the continuity of inter-segment channel parameters is ensured. For intra-segment small-scale parameters, continuous updating of angles, time delay, power and phases of multipath components is realized based on a geometric method. According to the method, correlation modeling of large-scale channel parameters and smooth evolution of small-scale parameters can be carried out on the millimeter wave channel, so that simulation of millimeter wave channel space consistency is realized, a foundation is laid for describing the millimeter wave channel, and meanwhile, an important basis is provided for simulation of a 5G millimeter wave channel model.
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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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