随机接入机制在5G非授权频段通信中的应用  

Application of Random Access Mechanism in 5G Unlicensed Band Communication

作　　者：魏康 孙立科 WEI Kang;SUN Like(China Information Consulting&Design Institute Co,Ltd.,Nanjing 210019,China)

机构地区：[1]中通服咨询设计研究院有限公司,江苏南京210019

出　　处：《通信电源技术》2021年第2期191-193,共3页Telecom Power Technology

摘　　要：传统5G非授权频段通信方法下,通信信道接入请求冲突较多,用户设备接入网络的成功率较差。为此,提出随机接入机制在5G非授权频段通信中的应用。检测通信信道的信道能量,选取未被占用的通信信道,通过竞争随机接入机制,在信道中接入5G非授权频段,信道产生冲突时退避竞争失败的非授权频段,确保接入请求无碰撞,最后计算基站信号的信噪比,配对5G基站与接入信道的用户设备终端,实现网络通信。实验结果表明,此次设计方法提高了设备接入成功率,使5G通信网络能够有效应对海量设备的随机接入。Under the traditional 5G unlicensed band communication method,there are many access request conflicts in the communication channel,and the success rate of user equipment accessing the network is poor.Therefore,the application of random access mechanism in 5G unlicensed band communication is proposed.Detect the channel energy of the communication channel,select the unoccupied communication channel,access 5G unauthorized frequency band in the channel through the competitive random access mechanism,when the channel conflicts,back off the unauthorized frequency band that failed in the competition,ensure that the access request has no collision,finally calculate the signal-to-noise ratio of the base station signal,and pair the 5G base station with the user equipment terminal of the access channel to realize network communication.The experimental results show that the design method improves the success rate of equipment access,so that 5G communication network can effectively deal with the random access of massive equipment.

关 键 词：随机接入 5G网络 非授权频段 节点通信 

分 类 号：TN929.5[电子电信—通信与信息系统]