27～29.5GHz频段IMT-2020(5G)系统对卫星固定业务系统干扰分析研究
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摘要
基于WRC-19 1.13议题研究框架和国内6GHz以上第五代(the 5th Generation,5G)移动通信候选频段的兼容性分析要求,针对27~29.5 GHz频段国际移动通信-2020(International Mobile Telecommunications-2020,IMT-2020)系统对卫星固定业务(Fixed Satellite Service,FSS)系统的干扰进行研究.采用集总干扰评估方法,比较了FSS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FSS上行链路的干扰情况.此外,还针对IMT-2020(5G)基站采用不同阵列配置进行了兼容性仿真研究.研究表明,在该频段IMT-2020(5G)系统不会对FSS产生有害干扰,特别是在IMT-2020(5G)基站采用大规模天线阵列的情况下.研究结果可为未来27~29.5GHz频段IMT-2020(5G)系统频率规划实际部署及保护FSS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 the 5th generation(5G)mobile communication candidate frequency bands above 6 GHz,this paper studied the interference from International Mobile Telecommunications 2020(IMT-2020)system to fixed satellite service(FSS)system in 27-29.5 GHz band.Based on the aggregate interference assessment,the interference from IMT-2020(5G)base station(BS)to the up-link of FSS receiver where the geostationary orbit satellite at 59 degree,85 degree and 113 degree longitude were comparatively studied.In addition,compatibility simulation under IMT-2020(5 G)base stations with different array configurations is also studied.Study shows that the IMT-2020(5G)system will not cause harmful interference to fixed satellite services system in the frequency 27.5-29 GHz band,especially in the case of IMT-2020(5 G)base station with large scale antenna array.The results can provide the technology basis for future planning and actual deployment of IMT-2020(5G)system in 27-29.5 GHz frequency band and protection of FSS.
Based on the agenda item 1.13 of WRC-19 and requirements for domestic compatibility analysis of the 5th generation(5G)mobile communication candidate frequency bands above 6 GHz,this paper studied the interference from International Mobile Telecommunications 2020(IMT-2020)system to fixed satellite service(FSS)system in 27-29.5 GHz band.Based on the aggregate interference assessment,the interference from IMT-2020(5G)base station(BS)to the up-link of FSS receiver where the geostationary orbit satellite at 59 degree,85 degree and 113 degree longitude were comparatively studied.In addition,compatibility simulation under IMT-2020(5 G)base stations with different array configurations is also studied.Study shows that the IMT-2020(5G)system will not cause harmful interference to fixed satellite services system in the frequency 27.5-29 GHz band,especially in the case of IMT-2020(5 G)base station with large scale antenna array.The results can provide the technology basis for future planning and actual deployment of IMT-2020(5G)system in 27-29.5 GHz frequency band and protection of FSS.
引文
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[2]HASSAN W A,JO H S,THAREK A R.The feasibility of coexistence between 5Gand existing services in the IMT-2020candidate bands in Malaysia[J].IEEE access,2017,5:14867-14888.
[3]ITU-R.Decision on the establishment and terms of reference of study group 5task group 5/1(TG 5/1)on WRC-19agenda item 1.13:CPM19-1[R].Geneva:ITU,2015.
[4]韩锐,张晓燕,刘畅,等.IMT系统对1518—1525MHz频段卫星移动系统的干扰[J].电信科学,2016,32(3):99-104.HAN R,ZHANG X Y,LIU C,et al.Interference from IMT system and satellite mobile system in 1518—1525MHz band[J].Telecommunications science,2016,32(3):99-104.(in Chinese)
[5]3GPP.3GPP Document TR 38.900(V14.1.0),study on channel model for frequency spectrum above 6 GHz[R].3GPP,2016:24-28.
[6]ITU-R Document R15-TG5.1-C-0173[R/OL].[2017-09-15].https://www.itu.int/md/R15-TG5.1-C-0173/en.
[7]ITU-R.ITU-R Documen R-REC-S.672-4,Satellite antenna radiation pattern for use as a design objective in the fixed-satellite service employing geostationary satellites[R].Geneva:ITU,1997.
[8]ITU-R.ITU-R Documen 5D/TEMP/265-E,Characteristics of terrestrial IMT systems for frequency sharing/interference analyses in the frequency range between 24.25 GHz and 86 GHz[R].Geneva:ITU,2017.
[9]ITU-R.ITU-R Document M.2101-0,Modeling and simulation of IMT networks and systems for use in sharing and compatibility studies[R].Geneva:ITU,2017.
[10]GUPTA A,JHA R K.A survey of 5Gnetwork:architecture and emerging technologies[J].IEEE access,2015,3:1206-1232.
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