一种基于路测数据的传播模型校正方法

A method to tune propagation models by using drive test data

为了提高无线网络规划中传播模型校正方法的实用性,针对连续波测试传播模型校正方法所存在的低效率和低准确性等问题,提出了一种利用现网路测数据进行传播模型校正的方法.从理论上证明了路测信号可以替代连续波测试信号用于传播模型校正,通过增加路测次数和利用历史数据、邻区数据等方法增加了有效数据量,从而解决了路测终端采样速率低的问题,给出了路测数据的过滤方法以形成可用的采样数据,最后分析了使用路测数据所带来的误差.在中国移动的网络上实际测试证明所提出的方法是准确和有效的,可用于不同标准或制式的移动通信网络.

The method for propagation model tuning based on continuous wave tests has shown its low efficiency and accuracy.A new method using drive test data was presented to improve the practicality of propagation model tuning in radio network planning.Through theoretical analysis,it was certified that the drive test data can replace continuous wave tests in propagation model tuning.The low sampling rate of drive test equipments could be solved by increasing the amount of valid data via increasing drive test times and utilizing historical data and neighbor-cell data.A drive test data filtration method was provided to generate available sampling data.Errors that might be caused by using drive test data were also analyzed.Real tests in China Mobile network proved that the method is reasonable and effective and may be used for the different standards of mobile communication networks.