3GPP中URLLC标准研究进展

为了应对未来移动流量与设备连接数量的爆炸式增长,第五代通信系统(5G)将通信服务从人与人之间通信渗透到物联网及各种垂直行业领域,3 GPP从NR第一个版本开始就开展了针对低时延高可靠通信的标准研究工作。首先概述了URLLC在3GPP中研究的标准化进程;然后列举了URLLC用例与需求,基于多样化的需求指标,详细介绍了使能URLLC业务的物理层关键技术与其在3GPP各个阶段的研究进展;最后,总结全文并对未来URLLC技术的发展做出展望。

The URLLC Standardization Progresses in 3GPP

In order to cope with the explosive growth of mobile traffic and number of device connections,the 5 th Generation(5 G)communication system extends services from human-to-human communications to the Internet of Things and various vertical industries,and the third Generation Partnership Project(3 GPP)has carried out standardization research work towards URLLC since the first NR release.This paper first outlines URLLC standardization progress in 3 GPP,and then lists URLLC use cases and requirements.Based on the diversified requirements,this paper details the key technologies in physical layer that enable URLLC services and the corre sponding standardization progresses in 3 GPP.Finally,the conclusions of this paper and the future development of URLLC technologies are provided.