An adaptive prediction method for wireless signal propagation in railway environment

An adaptive prediction, wireless signal technology, applied in wireless communication, transmission monitoring, transmission system and other directions, can solve the problems of insufficient wireless planning accuracy, high use cost, low use efficiency, etc., to improve simulation calculation accuracy and reduce costs The effect of enhancing, improving efficiency and precision

Active Publication Date: 2022-07-19
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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Problems solved by technology

[0006] In view of the above defects or improvement needs of the prior art, the present invention aims to solve the problems of insufficient accuracy, low use efficiency and high use cost of the current traditional wireless planning and coverage prediction

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  • An adaptive prediction method for wireless signal propagation in railway environment
  • An adaptive prediction method for wireless signal propagation in railway environment
  • An adaptive prediction method for wireless signal propagation in railway environment

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[0031] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as there is no conflict with each other.

[0032] Please refer to Figure 1-Figure 2 The present invention relates to an adaptive prediction method for wireless signal propagation in a railway environment, comprising the following steps:

[0033] Step 1: Select the feature section on the railway line map, classify it according to the environment type of the feature section and assign the corresponding material properties (displayed in the m...

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Abstract

The invention discloses an adaptive prediction method for wireless signal propagation in railway environment. Correction; use the propagation model after parameter correction to predict and calculate the wireless coverage of the entire railway line; check whether there is an area where the signal coverage index does not meet the standard on the entire railway line, if any, optimize the wireless system design in the corresponding section, and recalculate until the entire railway line. The signal coverage index is up to standard; when the signal coverage index of the whole line and the rationality of the system design are verified, the actual construction will be carried out, and after the civil construction is completed or before the railway line is opened, the on-site signal test will be carried out; the on-site signal test results will be used for Correction of the ray tracing algorithm; it can improve the planning efficiency and accuracy of the railway private network, and effectively reduce the cost increase brought by the ray tracing technology.

Description

technical field [0001] The invention belongs to the technical field of railway communication, and in particular relates to an adaptive prediction method for wireless signal propagation in railway environment. Background technique [0002] With the construction and development of high-speed railways in my country, the high-speed mobile environment where trains are located has put forward extremely high requirements for the transmission and reception of wireless signals. The GSM-R railway dedicated digital communication system (hereinafter referred to as the railway dedicated network) is mainly used to carry voice and train control data services. Under the requirements of the high-speed railway CTC-3 control system, the railway dedicated network needs to ensure the redundancy of wireless signals along the railway. Coverage doubles the wireless system equipment along the line, which greatly increases the difficulty of wireless system design. Reasonable arrangement of the locati...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/391H04W16/22H04W24/06H04B17/318
CPCH04B17/3913H04W16/22H04W24/06H04B17/318
Inventor 李津汉刘立海王耀国王伟力马韧王锐沈怡彦朱啸豪
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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