26GHz频段IMT-2020(5G)系统与卫星间业务频率共用分析方法研究
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摘要
根据国际电信联盟(International Telecommunication Union,ITU)的相关建议和报告以及技术特性,提出了一种用于分析26GHz频段IMT-2020(5G)系统与卫星间业务(Inter-Satellite Service,ISS)兼容共存性的方法.方法将全球较大面积部署的国际移动通信系统(International Mobile Telecommunications,IMT)基站合理地建模为一定数量的中心站,从时间和空间两个维度开展分析.其中,时间分析以全球范围的IMT-2020(5G)基站为对象;空间分析以中国大陆范围的IMT-2020(5G)基站为对象,还考虑了实际的城市人口数量.分析结果表明,在26GHz频段部署IMT系统,与卫星间业务具有兼容共存的空间.
The paper develops a methodology for analyzing the compatibility of International Mobile Telecommunications 2020(IMT-2020)and inter-satellite services(ISS)in the 26 GHz band,based on relevant ITU recommendations and reports,and current technical characteristics of both systems.It is proposed to model the massive IMT-2020(5G)base stations around the world into a set of central base stations,and to analyze the temporal and spatial characteristics of interference from 5G base stations to ISS.Based on the IMT-2020(5G)base stations in mainland China,the spatial characteristics of the interference to ISS are analyzed.The actual population is also taken into account in the calculation of aggregate interference of IMT-2020.The results show that these two systems have considerable possibilities in coexistence in the 26 GHz frequency band.
The paper develops a methodology for analyzing the compatibility of International Mobile Telecommunications 2020(IMT-2020)and inter-satellite services(ISS)in the 26 GHz band,based on relevant ITU recommendations and reports,and current technical characteristics of both systems.It is proposed to model the massive IMT-2020(5G)base stations around the world into a set of central base stations,and to analyze the temporal and spatial characteristics of interference from 5G base stations to ISS.Based on the IMT-2020(5G)base stations in mainland China,the spatial characteristics of the interference to ISS are analyzed.The actual population is also taken into account in the calculation of aggregate interference of IMT-2020.The results show that these two systems have considerable possibilities in coexistence in the 26 GHz frequency band.
引文
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[2]ITU-R.Final acts of the World Radiocommunication Conference(WRC-15)[R].Geneva,2015:294-296.
[3]HASSAN W A,JO H S,RAHMAN T A.The feasibility of coexistence between 5Gand existing services in the IMT-2020 candidate bands in Malaysia[J].IEEE access,2017,5:14868-14888.
[4]KIM S,VISOTSKY E,MOORUT P,et al.Coexistence of 5Gwith the Incumbents in the 28and 70GHz bands[J].IEEE journal on selected areas in communications,2017,35(6):1254-1268.
[5]ITU-R.Radio regulations of the International Telecommunication Union(2015 ed.)[C]//Geneva:ITU,2015,1:158-162.
[6]QIAN Z J,WANG T,KANG L,et al.Compatibility study between IMT and inter-satellite service systems in 25.2-27.5GHz frequency band[J].Telecommunications Science,2016,12:86-92.
[7]ITU-R.Characteristics of data relay satellite systems[R].Recommendation ITU-R SA.1414-1,Geneva,2013.
[8]ITU-R.Report on the sixth and final meeting of joint Task Group 4-5-6-7[R].Document 4-5-6-7/715-E,Geneva,2014.
[9]ITU-R.Spectrum needs and characteristics for the terrestrial component of IMT in the frequency range between 24.25GHz and 86GHz[R].Liaison statement from WP 5Dto TG 5/1,Geneva,2017.
[10]ITU-R.Modelling and simulation of IMT networks and systems for use in sharing and compatibility studies[R].Recommendation ITU-R M.2101-0,Geneva,2017.
[11]ITU-R.Reply liaison statement to Task Group 5/1on parameters for WRC-19agenda item 1.13[R].Liaison statement from WP 7Bto TG 5/1,Document 5-1/28,Geneva,2016.
[12]ITU-R.Protection criteria related to the operation of data relay satellite systems[R].Recommendation ITU-R SA.1155-1,Geneva,2013.
[13]ITU-R.Satellite antenna radiation pattern for use as a design objective in the fixed-satellite service employing geostationary satellites[R].Recommendation ITU-R SA.672-4,Geneva,2013.
[14]ITU-R.Calculation of free-space attenuation[R].Recommendation ITU-R P.525-3,Geneva,2016.
[15]ITU-R.Attenuation by atmospheric gases[R].Recommendation ITU-R P.676-11,Geneva,2016.
[16]ITU-R.Prediction of Clutter Loss[R].Recommendation ITU-R P.2108-0,Geneva,2017.
[17]ITU-R.Propagation data and prediction methods required for the design of Earth-space telecommunication systems[R].Recommendation ITU-R P.618-12,Geneva,2015.
[18]ITU-R.Technical and operational requirements that facilitate sharing between point-to-multipoint systems in the fixed service and the inter-satellite service in the band 25.25-27.5GHz[R].Recommendation ITU-R F.1509-3,Geneva,2015.
[19]Mamicode.世界主要城市经纬度[DB/OL].2015[2017-09-11].http://www.mamicode.com/info-detail-1111961.html
[20]国家统计局.中国各大城市人口数量排名[DB/OL],2010[2017-09-11].http://www.stats.gov.cn/
[21]ITU-R.Impact of IMT System on to Inter-Satellite Service in 25.25-27.5 GHz[R].ITU-R TG 5/1-0158,Geneva,2017.
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