Collection: Research and application of key Cellular Vehicle-to-Everything (C-V2X) technologies

Introduction

The team of Dr. Shanzhi CHEN from CICT/Datang proposed LTE-V2X technology in 2013 for the first time in the world. The first V2X communication technology integrating cellular communication and direct communication was innovatively introduced, which establishes the technical routes of C-V2X (Cellular-V2X). The team has developed the world's first commercial C-V2X chipset, automotive-grade C-V2X module, OBU (On-Board Unit), RSU (Roadside Unit), and test instruments. These devices have been widely deployed and applied in industrial practice. All these efforts have promoted to form the relatively complete C-V2X industrial ecosystem.

Breakthroughs of the key C-V2X technologies have been achieved by the project team to realize low-latency and high-reliability, large-range and high-bandwidth communications.C-V2X standards have become the mainstream international V2X communication standards

V2X communication faces the technical challenges such as high-frequency multiple transmissions and receptions, random and burst communication peers, and complex and fast time-varying wireless propagation environments. The innovative technical mechanisms were proposed, including the distributed wireless channel access control mechanism, the interference control and frequency shift processing mechanism, and C-V2X system architecture and cooperative control mechanism. Both the short-range information exchange among vehicle-to-vehicle, vehicle-to-infrastructure and vehicle-to-pedestrian, and the remote information services between vehicle-to-cloud can be achieved.

Since 2015, the team of Dr. Shanzhi CHEN from CICT/Datang, worked as the rapporteur, has been collaborating with relevant companies to complete the development of 29 standards in 3GPP.

International organizations such as NGMN and 5GAA have conducted performance evaluation using simulation and real road testing. The results show that C-V2X outperforms DSRC (IEEE 802.11p) in latency, reliability, and transmission distance. Currently, C-V2X has been adopted in many countries such as China and U.S., and has become the mainstream international standards.

CICT/Datang has developed the world's first commercial C-V2X chipset and devices with large-scale applications in vehicles and roadside infrastructures to realize Vehicle-Infrastructure-Cloud Cooperation and promote the C-V2X ecosystem

Based on the research results, CICT/Datang has developed the core C-V2X devices and released the world's first C-V2X chipset, automotive-grade C-V2X module, On-Board Unit (OBU), Roadside Unit (RSU), and first domestic testing instrument.

Collaborating with C-V2X industry, CICT/ Datang supports large-scale C-V2X interoperability testing and security verification activities. The C-V2X devices of CICT/Datang have been widely deployed in National Pilot Areas, National Intelligent and Connected Vehicles (ICV) Demonstration Areas, and Pilot Cities of ICV and Smart Cities in China. And they have been applied in the typical scenarios such as smart expressways, intelligent transportations, and smart parks. The significant economic benefits have been achieved through the above deployments and applications.

CICT/Datang has achieved 548 C-V2X related patents granted respectively by China, the U.S., European countries, Japan, and the Republic of Korea, and 436 of them were declared as standard essential patents by ETSI (European Telecommunications Standards Institute).

CICT/Datang plays an active role in promoting to form a relatively complete ecosystem of industrial chain. The factory-installed C-V2X devices for mass production have been available among global OEMs (Original Equipment Manufacturers) such as Ford, Audi, SAIC, NIO, etc.

Relying on C-V2X technology, cross-industry collaboration forms and promotes the vehicle-infrastructure-cloud cooperative system, empowering the transformation and upgrading of the automotive and transportation industries

Due to the performance advantages in low latency and high reliability, C-V2X enables the electrification, intellectualization, and connectivity of vehicles, as well as the digitalization and informatization of transportation infrastructure, thereby effectively empowering ICV and Intelligent Transportation System, and historically integrating automotive, transportation, communication and other industries.

C-V2X will provide the basic connectivity capabilities among vehicle-infrastructure-pedestrian-cloud, improve road safety and traffic efficiency, reduce energy consumption, and leverage V2X platform economy. At the same time, the deep integration of C-V2X and the on-board intelligence will enhance the capabilities of cooperative perception, decision-making and control, promote the development of ICV, ITS, and smart cities, drive the transformation of future mobility services, and foster a new trillion-level market.

At present, China has formed a number of V2X industrial clusters in the Beijing-Tianjin-Hebei region, the Greater Bay Area, the Yangtze River Delta, and the Chengdu-Chongqing region, accelerating the development of vehicle-infrastructure-cloud cooperative system. Moreover, the ITS America released a V2X deployment plan to accelerate large-scale nationwide deployment in the U.S. C-V2X has become a mainstream V2X communication technology around the world and has been widely deployed.

The team of Dr. Shanzhi CHEN from CICT/Datang has led the innovation of C-V2X technology, published several C-V2X classic papers, and published the first C-V2X monograph in Chinese and English, which has far-reaching influence in the world

The team of Dr. Shanzhi CHEN from CICT/Datang has published a series of C-V2X related SCI-indexed papers, and the most classic three ones have become popular articles (the 50 most frequently accessed documents) of journals and two of them have been included as ESI highly cited papers.

The world's first monographs dedicated to C-V2X were published in both Chinese and English, in which the technical principles and industrial practices of C-V2X technology was systematically introduced. The English version of C-V2X monograph was recommended by IEEE VTS (Vehicular Technology Society) as "This is the first book dedicated to C-V2X, which is the most promising wireless communication technology for V2X com communications and has become an essential enabling technology for Intelligent Transportation System (ITS) and Automated Driving".

Collaborating with industry, universities and research institutions, the team of Dr. Shanzhi CHEN from CICT/Datang has formulated a series of C-V2X related whitepapers, roadmaps for industrial and technological development, which have been widely recognized by both industry and academia.