Parameter optimization method for base station antenna in wireless cellular network

Abstract

The invention provides a parameter optimization method for an antenna in a wireless cellular network. The method comprises the steps of: selecting a horizontal angle and a downward inclination angle of the base station antenna in the wireless cellular network as parameters, determining an iteration initial angle value of each parameter, and determining an iteration step length of each parameter; according to the iteration initial angle value and the iteration step length of each parameter, carrying out repeated wireless network communication experiments by the iteration process, and calculating and storing an overall fitness value of a cell and an angle value of each parameter in each time of iteration; and when the fitness values accord with a preset convergence threshold, determining anoptimal angle value of each parameter in the iterations corresponding to the fitness values which accord with the convergence threshold as an optimized angle value of the parameter. According to the method provided by the invention, by adopting an iteration algorithm, a convergence speed is high, experiment times are few, experiment time is short, the optimization process does not depend on selection of initial parameter values, and an obtained optimal angle combination enables an antenna signal to completely cover an overall region.

Description

technical field [0001] The invention relates to the technical field of wireless network communication, in particular to a parameter optimization method of a base station antenna in a wireless cellular network. Background technique [0002] With the significant growth of wireless communications, the technology and usage of mobile devices are rapidly increasing, and this situation requires mobile operators and suppliers to improve their radio network planning services and provide more effective ways to increase network capacity and coverage optimization process. The configuration of parameters about each base station is a basic aspect of wireless network planning, such as antenna tilt angle setting and so on. Constrained by the frequency reuse of modern wireless cellular networks, jointly setting the parameters of all cells with irregular layout and coverage has become an important and challenging task. Due to the large number of parameters and the wide range of possible val...

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of a parameter configuration planning method in a wireless network in the above prior art include: the performance of these methods is highly dependent on the heuristic definition of the input parameters, that is, complex initial parameters need to be set to ensure the normal operation of the local search , resulting in a complex implementation process of the entire method, a large number of experiments, a relatively long experiment time, and a high implementation cost of the entire method

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