5G NR蜂窝网络在非授权频谱的标准化与应用  

Standardization and Application of 5G NR Cellular Network in Unlicensed Spectrum

作　　者：张佳胤[1] ZHANG Jiayin(Shanghai Huawei Technologies Co.,Ltd.,Shanghai 201206,China)

机构地区：[1]上海华为技术有限公司,上海201206

出　　处：《通信电源技术》2021年第3期96-101,104,共7页Telecom Power Technology

摘　　要：在无线电频谱划分中有一类频谱无需通过政府机关授权或拍卖而可以直接使用,这类频谱被称为非授权频谱。由于其低廉的使用成本和灵活的部署方式,使用该频段的WiFi设备被广泛应用于娱乐办公等场景,受到普通家庭用户和各行各业的青睐。3GPP在5G NR的第二个版本Rel-16也制定了针对全球5 GHz和6 GHz非授权频谱的相关协议,并正在5G NR的第三个版本Rel-17中对其进一步的演进。通过介绍各国对于非授权频谱的使用规范,并分析NR-U相对工作于授权频谱上5G NR所做的改进,同时通过完善的系统仿真评估了在标准定义场景下NR-U和WiFi6的性能比较。In the division of radio frequency spectrum,there is a type of spectrum that can be used directly without authorization or auction by government agencies.This type of spectrum is called unlicensed spectrum.Due to its low cost of use and flexible deployment methods,WiFi devices using this frequency band are widely used in entertainment and office scenarios,and are favored by ordinary home users and all walks of life.3GPP has also formulated related agreements(NR-Unlicensed,NR-U)for the global 5 GHz and 6 GHz unlicensed spectrum in the second version of 5G NR,Rel-16,and is working on the third version of 5G NR,Rel-17.Its further evolution.This article mainly introduces countries’regulations on the use of unlicensed spectrum,and analyzes the improvements made by NR-U relative to 5G NR working on licensed spectrum.At the same time,the performance comparison of NR-U and WiFi6 in the scenario defined by the standard was evaluated through a complete system simulation.

关 键 词：无线电频谱 非授权频谱 5G NR NR-U 

分 类 号：TN929.5[电子电信—通信与信息系统]