基于大津算法的5GNR帧结构自动检测方法  

Automatic Detection Method of 5GNR Frame Structure based on OSTU Algorithm

作　　者：蔡文杰 丁青[2] CAI Wenjie;DING Qing(Nokia Shanghai Bell Co.,Ltd.,Nanjing Jiangsu 210037,China;Nanjing Agriculture University,Nanjing Jiangsu 210031,China)

机构地区：[1]上海诺基亚贝尔股份有限公司,江苏南京210037 [2]南京农业大学,江苏南京210031

出　　处：《通信技术》2021年第2期369-373,共5页Communications Technology

摘　　要：应对5G应用的各种场景,5GNR采用了比4GLTE更为复杂的帧结构。如何快速地检测出5G信号所采用的帧结构,是一个值得研究的课题。鉴于5G TDD信号是开关键控信号,提出可以基于广泛应用于图像分析的大津算法来自动检测5GNR的帧结构,设计和实现算法后通过实际测试,验证了算法的有效性和准确性。In response to various scenarios of 5G applications,5GNR adopts more complex frame structure than 4GLTE.How to quickly detect the frame structure adopted by the 5G signal is a subject worthy of exploration.In view of the fact that the 5G TDD signal is of on-off key control signal,it is proposed that the frame structure of 5GNR can be automatically detected based on the OSTU algorithm,which is widely used in graph analysis.The design and implementation of the algorithm have undergone actual test to verify the effectiveness and accuracy of the algorithm.

关 键 词：5G 5G帧结构 大津算法 自动检测 

分 类 号：TN850.1[电子电信—信息与通信工程]