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User distribution based base station electromagnetic radiation prediction method

A technology of electromagnetic radiation and prediction method, which is applied in the fields of electrical components, wireless communication, etc.

Active Publication Date: 2017-06-20
XIANGTAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the maximum transmission power is used to predict the electromagnetic radiation around the base station, there will inevitably be a large deviation between the predicted value and the actual measured value

Method used

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  • User distribution based base station electromagnetic radiation prediction method
  • User distribution based base station electromagnetic radiation prediction method
  • User distribution based base station electromagnetic radiation prediction method

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Experimental program
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Embodiment Construction

[0021] The experimental site implemented this time is in an open and flat area with few obstacles around. The measurement starts from 5 meters away from the base station, and starts to move horizontally along the maximum radiation direction of the base station at a measurement interval of 2 meters for fixed-point measurement. The instruments and equipment for on-the-spot measurement of the base station are portable spectrum analyzer KEYSIGHT N9918A and periodic logarithmic antenna HyperLOG60180. The maximum transmission power of the base station antenna is 20W, the gain is 16db, and the coverage area is a circular area with a radius of 500 meters. With the base station as the center, the circular area with a radius of 5 meters is an area that users cannot reach.

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] The block diagram of the technical solution of the present invention is as figure ...

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Abstract

The invention discloses a user distribution based base station electromagnetic radiation prediction method, which comprises the steps of propagating a path loss model through wireless communication signals, and calculating the instantaneous transmitting power required by communication of a base station according to the distance between a mobile terminal and a base station antenna; calculating the average transmitting power of the base station by combining the instantaneous transmitting power required by communication of the base station and a probability density function of user distribution of a coverage area of the base station; and predicting the average electromagnetic radiation intensity of a certain point location around the base station according to the acquired average transmitting power of the base station. According to the invention, modeling is performed on prediction for electromagnetic radiation around the base station through considering multiple factors such as distribution of users in the coverage area, the path loss and communication features of the users, and the average electromagnetic radiation intensity of a certain point location of the base station can be accurately calculated according to a built model. The method disclosed by the invention has great reference values for base station construction, electromagnetic radiation environmental impact evaluation and environmental protection, and has certain social benefits.

Description

technical field [0001] The invention relates to a base station electromagnetic radiation prediction method based on user distribution. Background technique [0002] At present, the prediction of electromagnetic radiation around the communication base station is mainly based on factors such as the maximum transmission power of the base station, the radiation pattern of the antenna, and the distance between the transmission antenna and the prediction point. For example, [Side lobes from radio base station antenna in the evaluation of human exposure to EMF[C] / / Microwave&Optoelectronics Conference.IEEE,2013:1-5.] published by Linhares A is through the maximum transmission power, path loss and antenna related parameters Analyze electromagnetic radiation. In fact, the transmission power of the base station is related to the distribution of users around the base station. When the calling user is far away from the base station, the base station will automatically increase the trans...

Claims

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Application Information

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IPC IPC(8): H04W24/06
CPCH04W24/06
Inventor 杨万春唐坤高协平曹春红彭艳芳张雪
Owner XIANGTAN UNIV
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