B5G时期基于相邻空间的波束搜索方法  

Beam Search Method Based on the Adjacent Space in the B5G Epoch

作　　者：潘涛 刘岩松 周于程 刘林 PAN Tao;LIU Yansong;ZHOU Yucheng;LIU Lin(Yancheng Branch of China Telecom Co.,Ltd.,Yancheng 224008,China)

机构地区：[1]中国电信股份有限公司盐城分公司,江苏盐城224008

出　　处：《通信电源技术》2024年第22期189-191,共3页Telecom Power Technology

摘　　要：目前,各运营商仅在Sub-6 GHz频段建设基站,并未实现频率范围2(Frequency Range 2,FR2)的5G商业部署。相较于中国电信股份有限公司江苏分公司现网部署的3.5 GHz频段,毫米波频段较高,基站需部署更多天线来获得更多的波束增益,以弥补FR2频段的高路径损耗。因为通信波束较窄,基站与终端只有使用最佳波束对通信才可获得较高的通信速率,所以高效的波束搜索方案必不可少。在后5G(Beyond 5G,B5G)场景下提出一种波束搜索方法,相较于遍历搜索,可在复杂度降低99.999%的同时获得较高的频谱效率。At present,all operators only build base stations in the Sub-6 GHz band,and have not realized the commercial deployment of 5G in Frequency Range 2(FR2).Compared with the 3.5 GHz band deployed by Jiangsu Branch of China Telecom Co.,Ltd.,the millimeter wave band is higher,and the base station needs to deploy more antennas to gain more beam gain to make up for the high path loss in FR2 band.Because the communication beam is narrow,the base station and the terminal can only obtain a higher communication rate by using the best beam pair communication,so an efficient beam search scheme is essential.A beam search method is proposed in the Beyond 5G(B5G)scenario.Compared with the ergodic search,it can reduce the complexity by 99.999%and obtain higher spectral efficiency.

关 键 词：波束搜索 后5G(B5G) 大规模多输入多输出(Massive MIMO) 码本 部分连接 

分 类 号：TN929.5[电子电信—通信与信息系统]