26GHz频段IMT-2020与卫星地球探测业务干扰共存研究

Study on Coexistence Interference Between IMT System and Earth-Explorer Satellite Service at 26GHz Frequency Band

毫米波频谱应用于5G系统已成为业界共识。26 GHz频段是最有希望全球统一的5G毫米波频段。25.5GHz—27 GHz已有卫星地球探测(空对地)业务,5G系统的部署需要考虑对现有业务的保护。为确定此频段部署5G系统的可行性,给出了卫星地球探测业务(空对地)与5G系统的干扰共存分析。采用蒙特卡洛仿真方法,分析了IMT-2020系统对卫星地球探测业务地球站的聚合干扰,并根据干扰准则得到共存所需的保护距离和干扰余量,为5G频谱规划及以后的5G网络建设提供了参考依据。

The application of millimeter wave spectrum to the 5 G system is the consensus of the industry.26 GHz is the most globally promising unified 5 G millimeter wave frequency band.Since the satellite earth exploration(space to earth)service has occupied 25.5 GHz-27 GHz,the deployment of 5 G system should consider the protection of existing services.In order to determine the feasibility to deploy the 5 G system at the band,the analysis on the coexistence interference between the satellite earth exploration service and the 5 G system is presented.Based on the Monte Carlo simulation method,the aggregate interference of IMT-2020 system to the satellite earth exploration service station is analyzed.In addition,the guard distance and interference margin for the existence are derived according to the interference criteria.It provides a referential guidance to the 5 G spectrum planning and the subsequent 5 G network construction.