How 5G Enables V2X Communications?





As one of the basic technologies of auto congestion charge, Vehicle-to-Everything (V2X) at present days are in its initial phase where only simple applications such as real-time navigation, access to infotainment system and emergency services can be deployed. The arrival of 5G era broadens our imagination towards autonomous driving, and the combination of 5G and V2X (referred to “5G C-V2X” or “C-V2X” hereafter) significantly extend the V2X application scenarios.



One of the main goal of this intelligent traffic system is to improve road safety and traffic management. Latency in data transmission will lead to delay in action taken, which may then result in serious car crashes. Therefore, to ensure road safety, latency should be as short as possible. Compared with 4G, 5G network is much speedy in communication, and is capable of transmitting large-amount data from end-to-end within 1 millisecond. 5G C-V2X delivers large bandwidth, super-high reliability and ultra-low latency to enable seamless connection among vehicles, infrastructures, pedestrians and cloud.



Compared with DSRC, 5G C-V2X has larger communication range, better Non-Light-of-Sight performance, enhanced reliability and cost efficiency. In October 2018, the 5G Automotive Association (5GAA), a global cross-industry organization of companies from the automotive, technology and telecommunications industries, released a test report comparing the performance of C-V2X and DSRC-based V2X. The tests showed that C-V2X significantly outperformed DSRC in reliability and interference.



Table 1: Relative performance of C-V2X and DSRC

Reliability

Lab Cabled Tx and Rx Tests

C-V2X better

Field Line-of-Sight (LOS) Range Tests

C-V2X better

Field Non-Line-of-Sight Range Tests

C-V2X better

Interference

Lab Cabled Test with Simulated Co-channel Interference

C-V2X better

Lab Cabled Near-Far Test

Pass

Field Co-existence with Wi-Fi 80 MHz Bandwidth in UNII-3

C-V2X better

Field Co-existing of V2X with Adjacent DSRC Carrier

Pass

Congestion

Lab Cabled Congestion Control

Pass





Without 5G network, V2X would merely be a brilliant idea. 5G network is enabling V2X communication, making it an effective supplement of autonomous driving. It is believed that with the continuous development and upgrading of 5G C-V2X technology, fully autonomous driving (Level 5) is a mission possible in the near future.



Established in 2004, Shenzhen Genvict Technologies Co., Ltd. is one of the intelligent transportation companies in intelligent traffic. Our core businesses are electronic vehicle registration, smart urban mobility, and connected vehicles (V2X).

 

 


评论

发表评论

此博客中的热门博文

What is ETC Transponder?

图片
ETC (Electronic Toll Collection) transponder is a small wireless communication device installed in a vehicle for electronic tolling purpose. When the vehicle passes the toll point, roadside transceiver reads out data stored in the transponder, and then the system automatically deducts the toll payable.   At present, the electronic tolling technologies vary from country to country. What are the pros and cons of ETC transponders that adopt different technologies?   1. Dedicated Short Range Communications (DSRC): It is the mainstream technology for electronic toll collection, applied in countries such as China, Japan, Korean, Singapore and most European countries. DSRC technology has higher vehicle identification precision and is mature in tolling application, but it costs relatively high in terms of in-vehicle transponder (DSRC on-board unit/OBU).   2. Radio Frequency Identification (RFID): The world's first large-scale RFID-based tolling system opened in Taiwan in 2012. Th...
阅读全文

ITS Applications of UHF RFID Technology

图片
  Ultra-high Radio Frequency Identification (UHF RFID), with frequency band between 860MHz and 960MHz, is contactless and automatic identification technology that identifies and programs target (generally RFID tag attached on the object) without any human intervention. Its typical communication range is 4 to 6 meters, with maximum range over 10 meters. From technical and applicable perspectives, RFID tag is not a perfect carrier for storing large amount of data, but an effective means to identify targeted object in a contactless way.   Ultra-high Radio Frequency Identification is a practical and flexible technology that can work in harsh environment and is especially suitable for automatic control application. Currently, UHF RFID technology is widely used in fields like communication transmission, industrial automation, commercial automation and identity authentication, while long-range RF products are typically applied to intelligent transportation (ITS).   1. Electronic...
阅读全文

What is Electronic Toll Collection?

图片
  ETC electronic toll collection  is an automatic toll system  applied to expressways, toll bridges and tunnels. Generally, the system collects the toll via wireless communication between in-vehicle transponders and roadside transceivers, and conducts settlement processing with banks via computer network. Vehicles therefore can pass through the tolling points directly without stopping to pay the toll.   Typical method for implementing electronic toll collection is tolling via wireless communication, while automatic number plate recognition (ANPR) is now starting to gain ground in some countries.   Tolling via wireless communication:   The system collects the toll via wireless communication between the roadside transceiver and in-vehicle transponder, which is the mainstream approach adopted in most of the countries. There are various types of wireless communication for tolling, ranging from dedicated short-range communication (DSRC), radio frequency identifi...
阅读全文