Software Development for Interference Analisys Caused by PCI Collision in LTE Network

2018 XIV International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE) Pub Date : 2018-10-01 DOI:10.1109/APEIE.2018.8546112

R. Akhpashev, V. Drozdova

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Abstract

This article covers some key approaches to solve the problem of minimizing the interference level in wireless networks, such as LTE and further 5G networks, caused by lack of frequency reuseprinciple. The comparative analysis was done on the basis of the author's simulation model. It was done by comparison the simulation results of user's service blocking probability based on current interference level after author's solution to minimize the interference of Reference Signals caused by PCI collision. The PCI collision could happen if the neighboring cells use the same PCI code, which is cause the interference between Reference Signal distribution in time-frequency domain. Authors developed the software for Android phones to be as a drive-test equipment to get statistic of current information about network with attached GSP coordinates. Software for server was developed to analyze and identify such problem and offer the solution of minimizing the interference between the identical PCI of neighbor cells.

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LTE网络中PCI碰撞干扰分析的软件开发

本文介绍了解决无线网络(如LTE和进一步的5G网络)中由于缺乏频率复用原理而导致的干扰水平最小化问题的一些关键方法。在仿真模型的基础上进行了对比分析。通过对基于当前干扰程度的用户业务阻塞概率仿真结果进行对比，以最小化PCI碰撞对参考信号的干扰。如果相邻单元使用相同的PCI码，就会发生PCI冲突，从而导致参考信号在时频域的分布受到干扰。本文针对Android手机开发了该软件作为驱动测试设备，用于统计附加GSP坐标下的网络当前信息。针对这一问题，开发了服务器端软件进行分析和识别，并给出了减少相邻单元相同PCI之间干扰的解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2018 XIV International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE)

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