Base station site offset pre-evaluation method and system

Abstract

The invention discloses a base station location offset pre-evaluation method and a system. The method comprises the steps of acquiring the station location offset related information of a base station; conducting the grid-type simulation calculation on the network coverage area of the LTE network based on the station location offset related information and a standard propagation model so as to obtain a calculation region composed of a plurality of grids; for the calculation region before and after the location offset of the base station, calculating the RSRP change value and the SINR change value of each grid, the throughput change value of each cell, and the station spacing between the offset station location and the original station location of the base station; judging whether the RSRP change value, the SINR change value, the throughput change value and the station spacing respectively exceed an RSRP change value threshold, an SINR change value threshold, a throughput change value threshold and a station spacing threshold or not; on the condition that no of the above four values exceeds the corresponding threshold, allowing the location offset of the base station; otherwise, forbidding the location offset of the base station. According to the invention, the workload is reduced. Meanwhile, the error caused by human factors can be avoided.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and system for pre-evaluating base station site offset. Background technique [0002] At present, the existing site offset evaluation method mainly includes the following steps: (1) The engineering parameters of the LTE (Long Term Evolution, Long Term Evolution) network (basic information such as the longitude and latitude of the cell, the height of the antenna, the azimuth angle, and the downtilt angle) , Antenna files, propagation models, city 3D maps and other information are imported into the simulation software, and the evaluators manually draw the analysis area to simulate the LTE network coverage before and after the site shift; (2) The evaluators evaluate the coverage of the LTE network before and after the base station shift The level RSRP (Reference Signal Receiving Power, reference signal received power) and the change of the signal-to-noise ratio (SINR) are qualitat...

AI Technical Summary

Problems solved by technology

[0003] It can be seen that the existing site offset assessment methods have the following defects: (1) As the assessor needs to analyze the offset site one by one, it will inevitably lead to a large workload and low efficiency; (2) Since each assessor draws a polygon Inconsistency, inconsistent tolerance for differences in comparison results before and after simulation, will inevitably lead to differences in evaluation results caused by human factors; (3) The dimensions and rules of evaluation cannot be clearly quantified

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