5G URLLC物理层关键技术在车联网中的应用  

Application of 5G URLLC Physical Layer Key Technologies to V2X Networks

作　　者：段向阳[1] 郝鹏[1,2] 许玲 DUAN Xiangyang;HAO Peng;XU Ling(ZTE Corporation,Shenzhen 518057,China;State Key Laboratory of Mobile Network and Mobile Multimedia,Shenzhen 518057,China)

机构地区：[1]中兴通讯股份有限公司,广东深圳518057 [2]移动网络和移动多媒体技术国家重点实验室,广东深圳518057

出　　处：《移动通信》2020年第11期42-51,共10页Mobile Communications

摘　　要：探讨了3GPP5GURLLC物理层的关键技术及其在车联网中的应用,其中NR R15的关键技术包括"短调度单元技术""低谱效率传输技术""自反馈技术""下行eMBB与URLLC高效共存的使能技术""免授权数据传输技术";NR R16的关键技术包括"下行控制信道增强""上行控制信道增强""PUSCH增强技术""终端内上行eMBB与URLLC共存使能技术""eMBB终端与URLLC终端的共存技术"以及"免授权数据传输增强技术"。最后,分析了R17 URLLC的发展方向,通过分析可见,NR URLLC可以有效地满足C-V2X的Uu接口高可靠、低延迟的通信需求。This paper discusses the key technologies of 3 GPP 5 G URLLC physical layer and its application to V2X networks. The key technologies of NR R15 have "short scheduling unit technology", "low-spectrum efficiency transmission technology", "self-feedback technology’’, "enabling technology for efficient coexistence of downlink eMBB and URLLC" and "grant-free data transmission technology". The key technologies of NR R16 have "enhanced downlink control channel", "enhanced uplink control channel", "enhanced PUSCH technology", "terminal co-existence enabling technology of uplink eMBB and URLLC", "co-existence technology of eMBB and URLLC terminals" and "enhanced grant-free data transmission technology". Finally, this paper analyzes the research direction of R17 URLLC. Based on the analysis of this paper, NR URLC can effectively meet the high-reliability and low-latency communication requirements of C-V2X Uu interface.

关 键 词：5G URLLC 物理层 V2X 

分 类 号：TN92[电子电信—通信与信息系统]