C-V2X车联网关键技术与方案概述

doi:10.11959/j.issn.1000-0801.2020134

Abstract

Abstract:

C-V2X is regarded as one of the most promising applications of 5G.Firstly,the necessity and the technical problems in the construction of the integration development of intelligent driving and C-V2X were introduced.Then,combined with the total solution of V2X,the functional positioning,key technology trends,problems and product morphology of each network element were studied.Typical internet of vehicles services were combed out and a typical service sequence flow diagram was presented.Finally,the key technologies in the future development of internet of vehicles were prospected.

Key words: C-V2X, MEC, V2X service platform, RSU, OBU

CLC Number:

TP393

Zhenjiang DONG,Yongcheng GU,Jian LIANG,Zhenjiang HUANG,Jie WANG,Dacheng LI. Overview on key technology and solution of C-V2X for internet of vehicles[J]. Telecommunications Science, 2020, 36(4): 3-14.

Figures/Tables 6

分类		典型业务
驾驶安全类	前向碰撞预警	左转辅助	汇入主路辅助
	交叉路口碰撞告警	超车辅助	换道辅助
	逆向行驶预警	盲区预警/变道预警	紧急制动预警
	车辆失控预警	异常车辆提醒	道路危险状况提示
	静止车辆预警	非机动车横穿预警	紧急车辆提示
	限速预警	闯红灯预警	闯红灯（黄灯）告警
	行人横穿预警
	弱势参与者碰撞预警	慢速车辆预警	跟车过近提醒
	参与者感知数据共享	协作式交叉口通行	协作式匝道汇入
	RSU 提醒碰撞	碰撞不可避免告警	摩托车靠近告警
	行人盲区监测预警	非机动车靠近预警	大车靠近预警
	错误道路行驶警告	前方拥堵/排队提醒	道路施工提醒
	协作信息分享	火车靠近/道口提醒	限高/限重/限宽提醒
	疲劳驾驶提醒	注意力分散提醒	超载告警/超员告警
	道路交通事件提醒	车辆汇入汇出	基于车路协同交叉口通行
	紧急电子制动灯预警	危险驾驶与违章行为预警	道路施工预警
	路侧控制无信号交叉口通行	路侧感知“僵尸车”识别
交通效率类	绿波车速引导	车内标牌	减速/限速区提醒
	车速引导	电子不停车收费
	车辆编队行驶	协作式车队管理	动态车道管理
	高速专用道柔性管理	特殊车辆优先	自适应车队
	自适应巡航	交通信号配时动态优化	智能停车引导
	车辆动态路径引导	车辆动态路径规划	信号灯应用与绿波通行
	交通信息及建议路径	减速/停车标志提醒	减速/停车标志违反警告
	协同换道	协同借道	协同超车
	紧急车道	潮汐车道	禁入及绕道提示
	专用道动态使用	最优速度咨询	车路协同主被动电子收费
	增强导航	商用车导航	十字路口通行辅助
	前方拥堵提醒	大车车道错误提醒	场站进出服务
信息服务类	兴趣点提醒	SOS/eCall 业务	汽车近场支付
	车辆被盗/损坏警报	车辆远程诊断	维修保养提示
	汽车租赁/分享	电动车分时租用	媒体下载
	充电站目的地引导	电动汽车自动泊车充电	本地电子商务
	地图管理、下载/更新	经济/节能驾驶	即时消息
	个人数据同步	自动停车引导及控制	按需保险业务
	差分数据服务	电子号牌	车辆软件、数据和升级同步
	网元时间、空间数据同步
管理综合类	车辆关系管理	卸货区管理	车生命周期管理数据收集
	自动驾驶整车在环仿真	浮动车数据采集	高精度地图对齐及动态更新
	车辆和RSU 数据校准	路侧感知交通状况识别	自动驾驶车辆“脱困”
	渣土车车况检测	驾驶员行为检测

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参数	毫米波雷达	激光雷达	光学成像
最大距离/m	1 000	300	可以感知远距离，难以探知距离、速度和角度等信息
速度（/ km.h^-1）	0～1 000	0～300
静止测距	困难	简单
角度	较好	很好
环境	全天候	雨雪雾天气影响大	光线影响大
成本	中	高	低中
优点	测距远、成本低	精度高、速度快、抗杂波干扰	精细目标检测识别
劣势	目标识别难度大	成本高、非全天候、识别难度中	难以测知速度和位置
算力需求	较低	较高	高

Overview on key technology and solution of C-V2X for internet of vehicles

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