24.65～25.25GHz频段IMT-2020(5G)系统对卫星广播系统干扰分析
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摘要
基于WRC-19 1.13议题研究框架和国内6 GHz以上IMT-2020(5G)候选频段的兼容性分析要求,针对24.65~25.25 GHz频段IMT-2020(5G)系统对卫星广播系统的干扰进行研究。采用蒙特卡洛的仿真方法,比较了静止轨道卫星经度分别在东经59°、85°、113°时,IMT-2020(5G)系统基站对卫星广播系统上行馈线链路的集总干扰情况。通过仿真分析,评估了5G系统对不同轨位卫星两类载波的集总干扰水平。研究结果表明,在该频段,IMT-2020(5G)系统不会对卫星广播系统产生有害干扰,相关研究结果可为未来毫米波频段IMT-2020(5G)系统频率规划以及保护卫星广播系统提供技术依据。
Based on the Agenda Item 1.13 of WRC-19 and requirements for domestic compatibility analysis of 5 G candidate frequency bands above 6 GHz, the interference from IMT-2020 system(5G) to broadcasting satellite service system in 24.65~25.25 GHz band was studied. The Monte Carlo simulation method was used to assess the aggregate interference from IMT base station(BS) to the up-link of feeder link of broadcasting satellite where the geostationary orbit satellite at 59℃, 85℃ and 113℃ longitude. The aggregate interference level from 5G system to the two kinds of carriers of the satellite system with different orbits was evaluated via simulation analysis. Research results show that the IMT-2020(5G) system will not cause harmful interference for broadcasting satellite services system. The results can provide technology basis for future planning of IMT-2020(5G) system in millimeter wave and protecting of broadcasting satellite system.
Based on the Agenda Item 1.13 of WRC-19 and requirements for domestic compatibility analysis of 5 G candidate frequency bands above 6 GHz, the interference from IMT-2020 system(5G) to broadcasting satellite service system in 24.65~25.25 GHz band was studied. The Monte Carlo simulation method was used to assess the aggregate interference from IMT base station(BS) to the up-link of feeder link of broadcasting satellite where the geostationary orbit satellite at 59℃, 85℃ and 113℃ longitude. The aggregate interference level from 5G system to the two kinds of carriers of the satellite system with different orbits was evaluated via simulation analysis. Research results show that the IMT-2020(5G) system will not cause harmful interference for broadcasting satellite services system. The results can provide technology basis for future planning of IMT-2020(5G) system in millimeter wave and protecting of broadcasting satellite system.
引文
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[4]方箭,李景春,黄标,等.5G频谱研究现状及展望[J].电信科学,2015,31(12):111-118.FANG J,LI J C,HUANG B,et al.Review and prospect on the research of 5G spectrum[J].Telecommunications Science,2015,31(12):111-118.
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[6]ITU radio regulations(edition 2016)[M].[S.l.:s.n.],2016.
[7]FSS/BSS technical parameters for sharing studies under,WRC-19 agenda item 1.13 liaison statement to task group5/1[S].2016.
[8]3GPP.Study on channel model for frequency spectrum above 6GHz:TR38.900(V14.1.0)[S].2016.
[9]ITU-R.Prediction of clutter loss:ITU-R P.2018-0[S].2017.
[10]ITU-R.Satellite antenna radiation pattern for use as a design objective in the fixed-satellite service employing geostationary satellites:ITU-R S.672-4[S].1997.
[11]ITU-R.Apportionment of the allowable error performance degradations to fixed-satellite service(FSS)hypothetical reference digital paths arising from time invariant interference for systems operating below 30 GHz:ITU-R S.1432-1[S].2006.
[12]ITU-R.Modelling and simulation of IMT networks and systems for use in sharing and compatibility studies:ITU-R M.2101-0[S].2017.