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Quality Measurements on the Radio Interface of the Mobile Communication in the Proximity of the Power System

机译：电力系统附近移动通信无​​线接口的质量测量

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Problem statement: The electric power lines and its associated equipments generally produce an electromagnetic noise in their environment, which are likely to have dangerous effects on propagation environment to the Global System for Mobile communication (GSM) cellular mobile network. Approach: In this study, we analyzed the characteristics of the power line noise and its correlation with the GSM burst; showing that the considered noise source to the Mobile Station (MS) and Base Transceiver Station (BTS) of GSM system is due to the presence of fundamentals and harmonics fields (electric and magnetic fields) in the proximity of power lines functioning at the permanent state; specially the present of the 5th harmonic field which is close to the GSM pulsed field at the frequency 217 Hz. Results: This study shows the measurements and analysis results for QoS of GSM network based on the GSM metrics such as Mobile Station Power (MSP), Received signal power level (RxLevl), Received signal quality (RxQual), Carrier to Interference ratio (C/I) and Frame Error Rate (FER). These experiments were done inside and outside an area of 50m distance from the tower of power line and take on consideration the two real situations (in the case of the absence of BTS and in the case of the presence of the BTS inside an area of radius 50m around the power line). Conclusion/Recommendations: The experimental results in idle and dedicated mode are more important and it has been observed that the influence of this noise produced by these power lines leading to a degradation of the MSP, RxLev and RxQual respectively with an important FER.
机译：问题陈述：电力线及其相关设备通常会在其环境中产生电磁噪声，这可能会对全球移动通信系统（GSM）蜂窝移动网络的传播环境产生危险影响。方法：在这项研究中，我们分析了电力线噪声的特性及其与GSM突发的相关性。表明认为GSM系统的移动站（MS）和基站收发器（BTS）的噪声源是由于在永久性工作的电力线附近存在基波和谐波场（电场和磁场） ;特别是5次谐波场的存在，它接近217 Hz频率下的GSM脉冲场。结果：本研究显示了基于GSM指标的GSM网络QoS的测量和分析结果，这些指标包括移动站功率（MSP），接收信号功率电平（RxLevl），接收信号质量（RxQual），载波干扰比（C / I）和帧错误率（FER）。这些实验是在距电线塔50m的区域内外进行的，并考虑了两种实际情况（在没有BTS的情况下和在半径范围内存在BTS的情况下）电力线周围50m）。结论/建议：空闲和专用模式下的实验结果更为重要，并且已经观察到这些电源线产生的这种噪声的影响分别导致重要FER导致MSP，RxLev和RxQual的下降。

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