Stratospheric millimeter wave base station ground channel modeling method and modeling system thereof

A channel modeling and stratospheric technology, applied in the transmission system, transmission monitoring, electrical components, etc., can solve the problems that the model is not representative, does not consider, cannot simulate work and provide support for actual system deployment, etc.

Active Publication Date: 2020-01-17
天地信息网络研究院(安徽)有限公司
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Problems solved by technology

The current research work on the characteristics of the stratospheric Ka mmWave channel is very limited. The existing works either did not consider the influence of space weather conditions on the transmission of the stratospheric Ka mmWave signal, or established the influence of the ground environment on the stratospheric Ka mmWave signal as A single model, the given model is not representative, and cannot provide support for the simulation work and actual system deployment of the stratospheric Ka mmWave communication system

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  • Stratospheric millimeter wave base station ground channel modeling method and modeling system thereof
  • Stratospheric millimeter wave base station ground channel modeling method and modeling system thereof
  • Stratospheric millimeter wave base station ground channel modeling method and modeling system thereof

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Embodiment 1

[0061] see figure 1 , the stratospheric millimeter-wave base station-to-earth channel modeling method of the present embodiment includes the following steps:

[0062] Step 1, by calculating the weather impact c of the space segment of the stratospheric mmWave base station communication on the user channel of the ground receiving end w (t) to model the effect of space weather conditions in the space segment on the stratospheric mmWave signal as a Gaussian distribution model;

[0063] Step 2, by calculating the ground environment impact c β (t), to model the influence of the ground environment of the ground segment on the stratospheric millimeter wave signal into a three-state first-order Markov model;

[0064] Step 3, by calculating the joint influence c in the stratospheric mmWave base station communication channel model total (r), the signal is modeled by combining the stratospheric space weather conditions and the influence of multipath fading and shadow fading caused by ...

Embodiment 2

[0104] see Figure 4 , which is a simulation model diagram of the stratospheric millimeter wave base station communication channel time series generator. The difference between embodiment 2 and embodiment 1 is that the environment types of the receiving end include open areas, suburbs, and urban areas, and n is 3, in each type of environment, the user channel at the receiving end may be in 3 states: LOS state s 1 , moderate shadow fading state s 2 , deep shadow fading state s 3 .

[0105] The signal sent by the stratospheric millimeter-wave base station to the ground will reach the ground receiver after undergoing space transmission. At this time, the signal will be affected by the environment of the receiver. For example, when the user terminal is in an open environment, due to the absence of Due to the influence of objects and obstacles, the received signal is in the line-of-sight transmission (LOS) state most of the time; when the user is in the suburbs, due to the influ...

Embodiment 3

[0127] The stratospheric Ka millimeter wave base station ground channel modeling system of this implementation adopts the stratospheric Ka millimeter wave base station ground channel modeling method described in Embodiment 1, and the stratospheric Ka millimeter wave base station ground channel modeling system includes : Weather impact modeling module, ground environment impact modeling module, joint impact modeling module.

[0128] The weather influence modeling module is used to calculate the weather influence c w (t) to model the influence of the space weather conditions of the space segment on the stratospheric mmWave signal as a Gaussian distribution model. Among them, the c w (t). c w Please refer to Embodiment 1 for the calculation method of (t).

[0129] The ground environment impact modeling module is used to calculate the ground environment impact c β (t), to model the influence of the ground environment of the ground segment on the stratospheric millimeter-wave ...

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Abstract

The invention discloses a stratospheric millimeter wave base station ground channel modeling method and a modeling system thereof. The method comprises the following steps: modeling the influence of the space weather condition of a space section on a stratospheric millimeter wave signal into a Gaussian distribution model by calculating the weather influence of the space section of base station communication on a user channel of a ground receiving end; modeling the influence of the ground environment of a ground section on a stratospheric millimeter wave signal into a three-state first-order Markov model by calculating the influence of the ground section on the ground environment of a user channel; through calculating the joint influence in a base station communication channel model, modeling on the channel by combining the weather condition and the influence of multipath fading and shadow fading caused by the ground environment where a receiving end is located on the channel. The basestation ground channel modeling method and modeling system can accurately simulate the influence of various factors on the stratospheric millimeter wave signal in the actual transmission process during ground communication, are suitable for modeling work under various weather and environment conditions, and can provide reference for stratospheric millimeter wave communication system simulation work and actual system deployment.

Description

technical field [0001] The invention relates to a ground channel modeling method and a ground channel modeling system in the technical field of wireless communication, in particular to a stratospheric millimeter wave base station ground channel modeling method and a modeling system. Background technique [0002] The space-space-ground integrated network is a complex giant system composed of a geostationary satellite relay network, a medium-low orbit satellite network, a stratospheric high-altitude platform (High Altitude Platforms, HAPs) network, and a ground wired / wireless mobile network. Through the coordination of multi-layer communication networks, not only can global seamless coverage be achieved, but also important guarantees can be provided for navigation, remote sensing, emergency communications, and military communications. The stratospheric communication system refers to the use of high-altitude stratospheric platforms 20km to 55km away from the ground to carry com...

Claims

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Application Information

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IPC IPC(8): H04B17/391
CPCH04B17/391H04B17/3911
Inventor 张正宇胡树楷姚艳军肖海红郑生华张世彬黄永华彭立军张靖周家喜郑雨阳陈田
Owner 天地信息网络研究院(安徽)有限公司
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