1.8 GHz电力无线专网对外系统干扰及抑制分析

Analysis of External System Interference and Suppression in 1.8 GHz Power Wireless Private Network

电网公司在多地开展4GTD-LTE无线专网的试点建设,随着专网建设规模不断扩大,在建设过程中呈现出多种问题,其中无线干扰问题包括系统内外干扰较为突出。文章就某1.8GHz无线专网造成对外系统干扰案例进行介绍,通过现场实测及理论分析定位出干扰类型,针对该类干扰问题提出了相应的干扰抑制方案,通过数据处理方式和对比分析方法验证,抑制方案可有效改善1.8GHz电力无线专网对外系统造成的干扰。提出的无线干扰分析过程及抑制方案可应用于无线专网建设中,为电力无线专网大规模推广建设奠定基础。

The power grid company carried out the pilot construction of 4 G TD-LTE wireless private network in many places. The construction scale of private network is expanding, and there are many problems in the construction process, among which the wireless interference problem includes the internal and external interference of the system. In this paper, a case of the external interference system caused by a 1.8 GHz wireless private network is introduced and the interference types are determined by field measurement and theoretical analysis. Then, we proposed the corresponding interference suppression scheme. Through the data processing method and comparative analysis methods validation, we found the interference suppression scheme can effectively improve interference of the external system caused by the 1.8 GHz power wireless private network. In conclusion, the analysis process and suppression scheme of wireless interference can be applied to the construction of wireless private network, which lays a foundation for the large-scale promotion and construction of power wireless private network.