面向5G新空口的Massive MIMO技术标准进展及演进
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摘要
5G的无线接入部分以新空口(NR——New Radio)标准为基础进行扩展,高效连接海量物联网、支持新型关键业务服务,达到低时延、高可靠、高安全性的新水平。作为5G NR关键性技术之一,Massive MIMO在基站端使用远超激活终端数的天线,实现3D波束成型,大幅提高频谱利用效率、网络容量和覆盖率。首先介绍Massive MIMO系统模型,其次总结3GPP Rel-15版本中Massive MIMO标准化研究内容,最后讨论Massive MIMO技术标准演进方向。
5G based on NR(New Radio)can be expanded,efficiently connect massive IoT,support new key business services,and achieve new levels of low latency,high reliability and high security. Massive MIMO,as one of 5G key technologies,can implement 3 D beamforming and significantly improve spectrum utilization efficiency,network capacity and coverage with a large excess of service antennas in base stations over active terminals. Firstly it introduces the system model of Massive MIMO,then it summarizes the standardization content of Massive MIMO in 3 GPP Rel-15 version,and finally the development direction of Massive MIMO technology standard is discussed.
5G based on NR(New Radio)can be expanded,efficiently connect massive IoT,support new key business services,and achieve new levels of low latency,high reliability and high security. Massive MIMO,as one of 5G key technologies,can implement 3 D beamforming and significantly improve spectrum utilization efficiency,network capacity and coverage with a large excess of service antennas in base stations over active terminals. Firstly it introduces the system model of Massive MIMO,then it summarizes the standardization content of Massive MIMO in 3 GPP Rel-15 version,and finally the development direction of Massive MIMO technology standard is discussed.
引文
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[2]张中山,王兴,张成勇,等.大规模MIMO关键技术及应用[J].中国科学:信息科学,2015(9):1095-1110.
[3]戚晨皓,黄永明,金石.大规模MIMO系统研究进展[J].数据采集与处理,2015(3):544-551.
[4] HUH H,CAIRE G,PAPADOPOULOS H C,et al. Achieving"Massive MIMO"Spectral Efficiency with a Not-so-Large Number,of Antennas[J]. IEEE Transactions on Wireless Communications,2012,11(9):3226-3239.
[5] LARSSON E G,EDFORS O,TUFVESSON F,et al. Massive MIMO for next generation wireless Systems[J]. IEEE Communications Magazine,2013(2):186-195.