关于NR-V2X sidelink物理层关键技术研究  

Research on Key Technologies of NR-V2X Sidelink Physical Layer

作　　者：安昭旭 AN Zhaoxu(China Telecom Digital City Technology Co.,Ltd,Xiong'an New Area 071700)

机构地区：[1]中电信数字城市科技有限公司,雄安新区071700

出　　处：《长江信息通信》2023年第11期48-53,共6页Changjiang Information & Communications

摘　　要：在3GPP R14和15期间,LTE引入了对V2V和V2X服务的支持,将3GPP平台协议扩展到汽车领域。R16中研究了NR-V2X基于5G NR网络的PC5接口和Uu接口增强,提出了车辆编队行驶、远程驾驶、传感器扩展等高级V2X业务需求。文章主要介绍NR-V2X在R16版本中的整体架构,系统介绍NR-V2X sidelink协议栈及物理层信号,探讨了sidelink SCI二阶技术、PSCCH与PSSCH信道复用技术、同步技术以及资源分配技术,并在此基础上进行了后续应用的展望,为今后NR-V2X落地应用提供参考。During the 3GPP R14 and 15 periods,LTE introduced support for V2V and V2X services,extending the 3GPP plat-form protocol to the automotive industry.R16 studied the PC5 interface and Uu interface enhancement of NR-V2X based on 5G NR network,and proposed advanced V2X business requirements such as vehicle formation driving,remote driving,and sensor expansion.The article mainly introduces the overall architecture of NR-V2X in the R16 version,systematically introduces the NR-V2X sidelink protocol stack and physical layer signals,explores sidelink SCI 2-order technology,PSCCH and PSSCH chan-nel multiplexing technology,synchronization technology,and resource allocation technology.Based on this,it provides advise for some future applications,providing reference for the future implementation of NR-V2X.

关 键 词：NR-V2X sidelink(SL) 信道复用 同步技术 资源分配 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]