Showing posts with label C-V2X. Show all posts
Showing posts with label C-V2X. Show all posts

Monday, November 23, 2020

NTU Singapore develops transceiver test for V2X with Keysight

Nanyang Technological University, Singapore (NTU Singapore) is working with Keysight Technologies to develop a transceiver test bench for a hybrid vehicle-to-everything (V2X) communication system.

To fully realize smart mobility, there are several technology challenges including V2X, which is a rapidly emerging technology. V2X technologies include dedicated short-range communication (DSRC) and cellular-V2X (C-V2X). However, a single unified V2X test solution does not currently exist.

NTU Singapore is currently conducting research on a reconfigurable transceiver system specifically for hybrid (DSRC+C-V2X) communication at 5.9 GHz ISM band. This also includes possible extension to the millimeter-wave (mmWave) frequency range using cost-effective complementary metal-oxide semiconductor (CMOS) technology.

Keysight provided NTU with test solutions and capabilities for generating and analyzing both DSRC and C-V2X signals. This included testing and validation requirements for multi-components and system-level specifications in V2X communication standards, as well as 5G signal generation and analysis in the mmWave frequency range and multiple-input and multiple-output (MIMO) mode. As a result, NTU could generate accurate and full characterization of the newly developed transceiver.


Wednesday, November 18, 2020

FCC opens 5.9 GHz band for Wi-Fi and C-V2X


The FCC adopted new rules for the 5.9 GHz band (5.850-5.925 GHz) to make new spectrum available for unlicensed uses, such as Wi-Fi, and improve automotive safety.  Specifically, the new band plan designates the lower 45 megahertz (5.850-5.895 GHz) for unlicensed uses and the upper 30 megahertz (5.895-5.925 GHz) for enhanced automobile safety using Cellular Vehicle-to-Everything (C-V2X) technology.

The FCC said the spectrum’s impact will be further amplified by the fact that it is adjacent to an existing Wi-Fi band which, when combined with the 45 megahertz made available today, will support cutting-edge broadband applications.  These high-throughput channels—up to 160 megahertz wide—will enable gigabit Wi-Fi connectivity for schools, hospitals, small businesses, and other consumers.  The Report and Order adopts technical rules to enable full-power indoor unlicensed operations in the lower 45 megahertz portion of the band immediately, as well as opportunities for outdoor unlicensed use on a coordinated basis under certain circumstances.  Under the new rules, ITS services will be required to vacate the lower 45 megahertz of the band within one year.  

The new rules also will improve automotive safety by reserving the upper 30 megahertz of the band for Intelligent Transportation System (ITS) services and designating C-V2X as the technology standard for safety-related transportation and vehicular communications.  C-V2X uses cellular protocols to provide direct communications between vehicles and obstacles like other vehicles, cyclists, pedestrians, and road workers, and to receive safety information from roadside transmitters.  

https://www.fcc.gov/document/fcc-modernizes-59-ghz-band-improve-wi-fi-and-automotive-safety


Sunday, November 1, 2020

China completes C-V2X Cross-industry & Large-scale Pilot Plugfest

Over 40 automakers, 40+ terminal manufacturers, 10+ chipset solution vendors, 20+ information security vendors, 5 map providers and 5 position vendors took part in China’s 2020 C-V2X Cross-industry & Large-scale Pilot Plugfest, testing and demonstrating performance and reliability of C-V2X in large-scale communication scenarios. 

This year's C-V2X interoperability demonstration across chip modules, terminals, vehicles, security platforms and map providers used new digital certificate formats, added high-definition maps and positioning, and deployed continuous scenarios closer to reality and commercially oriented applications.

The serviceability of C-V2X products and systems in deployments at scale was validated in the C-V2X Large-scale Capacity Test based on the interoperability and security mechanism validation already achieved in the previous C-V2X interoperability work. With this, the industry has taken important steps to C-V2X commercialization at scale. A total of 180 C-V2X onboard units (OBUs) and roadside units (RSUs) were used as a test background to emulate complex conditions such as rush hour in urban areas and congested roads. In this test, the C-V2X communication performance and application function tests on chip modules, terminals and vehicles in various application scenarios validated the large-scale serviceability of the C-V2X system.

Qualcomm, which was among the participants, said most of tested vehicles and OBUs were equipped with the Qualcomm® 9150 C-V2X chipset solution. The tests are also featured with the Qualcomm® Snapdragon™ Automotive 4G Platform, supporting stable connectivity. Through the direct vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications, 4G or 5G wireless wide area network (WWAN) vehicle-to-network (V2N) connectivity, the Snapdragon Automotive 4G/5G Platforms with integrated C-V2X technology and high-definition positioning help improve road safety and traffic efficiency to ease congestion and increase capacity, supporting C-V2X commercialization at scale.

“Today, 5G is empowering the automotive industry, expanding the set of application, and driving the C-V2X industry ecosystem to scale in China. Meanwhile, the solid foundation of the information and communication industry has also paved the way for C-V2X commercialization and implementation in China,” said Jim Misener, senior director, product management and global V2X ecosystem lead, Qualcomm Technologies, Inc. “Qualcomm Technologies is excited to participate in China’s C-V2X application demonstration for three consecutive years, team up with a broad range of Chinese automotive ecosystem vendors to accelerate commercial C-V2X rollouts with our breakthrough product portfolio, and usher in a new era of intelligent connected vehicles for road safety and traffic efficiency.”





 

Thursday, December 12, 2019

FCC advances C-V2X in 5.9 GHz proposal

The FCC is proposing rule changes for the 5.9 GHz (5.850-5.925 GHz) band, which has been reserved for use by Dedicated Short-Range Communications (DSRC), a radio service designed to enable vehicle-related communications.  However, after 20 years, DSRC still has not been widely deployed, and this spectrum therefore generally remains unused.

The FCC is proposing to designate the lower 45 megahertz of the band for unlicensed uses like Wi-Fi.  This 45 megahertz sub-band can be combined with existing unlicensed spectrum to provide cutting-edge high-throughput broadband applications on channels up to 160 megahertz wide. 

The FCC is proposing to dedicate the remaining 30 megahertz of the band for use by transportation and vehicle safety-related communication services.  Specifically, in the NPRM, the Commission proposes to revise its rules to provide Cellular Vehicle to Everything (C-V2X), an emerging standard for transportation applications, with exclusive access to the upper 20 megahertz of the band.  Under the Commission’s current rules, no spectrum is allocated for C-V2X.  The NPRM seeks comment on whether to retain the remaining 10 megahertz for use by DSRC systems or to dedicate it for C-V2X use. 

"One promising new technology that is gaining momentum in the automotive industry is Cellular Vehicle to Everything, or C-V2X.  C-V2X would use standard cellular protocols to provide direct communications between vehicles, and, as the name suggests, everything—including other vehicles on the road, infrastructure (like light poles), cyclists (like me), pedestrians, and road workers.  C-V2X also is expected to support new, advanced applications as we transition to faster, more responsive 5G networks.  And it’s backed by automakers like Ford, Audi, BMW, Daimler, and Tesla.  So we’re proposing to designate the upper 20 MHz for this exciting, new automotive communications technology," states Ajit Pai, FCC Chairman.

Sunday, January 6, 2019

Continental develops 5G-Hybrid Vehicle-to-Everything (V2X)

Continental unveiled a 5G hybrid Vehicle-to-Everything (V2X) platform that integrates technologies not only for 4G and 5G network access, but also Dedicated Short Range Communication (DSRC) and Cellular-V2X for direct V2X communication.

The company said its V2X, which is being demonstrated at this week's CES 2019 in Las Vegas, provides a global solution for auto manufacturers as the technical path to establish direct V2X communication varies regionally. Some regions prefer the established DSRC and others lean toward the upcoming Cellular-V2X standard.

A practical example: if vehicles approach a construction site, short-range V2X communication begins to communicate this situation within a half mile range. As a result, the driver is prepared for the situation when the car reaches the actual construction site or the end of a forming line of traffic. If seamless long-range communication also transmitted this warning with a longer lead time, the driver would be offered more options, having more time to prepare for a forming traffic jam or to get into the recommended lane, as an example. The construction workers also benefit from the advanced information as it reduces the risk of a car running into them. Based on Continental’s platform, such use cases could soon become reality on roads throughout the world. For China, this global project even marks the first series development of a V2X product.

“Winning a first project based on our 5G-Hybrid-V2X platform is not only great news for us but for the entire industry. Bringing 5G on the development roadmap so early demonstrates that the automotive industry has its finger on the pulse of digitalization,” said Johann Hiebl, head of the business units Body & Security and Infotainment & Connectivity at Continental. “Additionally, deploying V2X on such a large, global scale marks an important stepping stone for safer and more intelligent mobility.”

“Ad-hoc networking through V2X has the potential to drastically increase driving safety. Direct information from other vehicles can improve the decision-making of drivers and automated driving functions,” said Murali Srinivasan, head of Passive Safety and Sensorics for Continental North America. “To fulfill this task, V2X technology must be as fast and reliable as possible – and it must be available globally. To date, short-range communication and long-range communication are two different systems with dedicated Electronic Control Units (ECUs). Networking both types of communication more closely will bring safety benefits.”

Wednesday, August 22, 2018

Qualcomm and China's Datang test multi-vendor C-V2X interoperability

Qualcomm and the Datang Telecom Group, also known as China Academy of Telecommunications Technology (CATT), have conducted a multi-chipset vendor interoperability test of 3rd Generation Partnership Project (3GPP) Release 14 C-V2X direct communications (PC5) Mode 4, which is also referred to as LTE-V2X.

The cross-chipset interoperability test, which was held at Qualcomm Wireless Communication Technologies's Beijing lab, utilized the Qualcomm 9150 C-V2X chipset and Datang’s LTE-V2X module, the DMD31.

Qualcomm said the testing reflects the maturing state of C-V2X radio technology and applications to improve automotive safety, automated driving, and traffic efficiency. 

C-V2X is based on the global 3GPP Release 14 specifications for PC5-based direct communications in the 5.9 GHz ITS spectrum where vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) messages for collision avoidance can be sent without any dependency on cellular operator network involvement.  Qualcomm notes that C-V2X is also the only V2X communication technology with an ongoing evolution designed to offer forward compatibility in implementation with 5G NR C-V2X.

Wednesday, February 7, 2018

Telefónica and Huawei test 5G-V2X Radio for uRLLC Assisted Driving

Telefónica and Huawei are running a Proof-of-Concept (PoC) testbed for 5G based vehicle communication networks (known as 5G-V2X) in their 5G Joint Innovation Lab at Madrid.

The 5G-V2X test is based on the latest 5G NR specs and includes advanced services such as vehicles platooning, extended sensors, advanced driving and remote driving, among others.

The so-called Ultra-Reliable and Low-Latency Communication (URLLC) mode for 5G NR offers the flexible design to support services with low latency and high-reliability requirements.

Huawei said the PoC demonstrates that URLLC can effectively support V2X with higher system capacity and better coverage. The exercise achieved 99.999% reliability with a low latency of 1ms required for autonomous driving in a typical macro cellular outdoor environment, such as dense urban, suburban and rural areas.  In the 5G-V2X PoC, a novel self-contained frame structure for radio transmission was used, both from the base station to the vehicle and from the vehicle to another vehicle. This allows much faster transmission feedback, enabling very low-latency communications. The great flexibility of the NR system framework allows the support of some advanced features, like Polar coding for small V2X packet error correction, an optimized HARQ (Hybrid Automatic Repeat Request) procedure for increased transmission reliability, or an ‘Inactive State’ for instantly sending short packets to control the car maneuver. To further enhance performance, another key technology, ‘SCMA-based (Sparse Coded Multiple Access) Grant Free Access, was tested.

Mr. Enrique Blanco, Telefónica Global CTIO, said: “This PoC between Telefónica and Huawei is another step towards 5G commercialization and a fully connected society. We will strengthen our collaboration by verifying 5G key technologies. Multiple novel use cases will be developed and provided to our customers.”

Dr. Wen Tong, Huawei Fellow and Huawei Wireless CTO, said: “We are pleased with our further collaboration with Telefónica in 5G technologies. The 5G-V2X PoC is another joint effort to pave the way for commercialization of 5G and lay a solid foundation to realize the 5G vision of enabling cooperative autonomous driving.”

Thursday, January 11, 2018

First Cellular Vehicle-to-Everything (C-V2X) trials planned for Japan

The first Cellular Vehicle-to-Everything (C-V2X) trials in Japan will get underway this year with participation from NTT DOCOMO, Nissan, OKI, Continental, Ericsson and Qualcomm.

The testing will focus on the range, reliability and latency benefits of C-V2X direct communications operated in 5 GHz band. Additionally, the C-V2X trials are designed to demonstrate the complementary benefits of network-based communications utilizing LTE-Advanced (LTE-A).

C-V2X provides non-line-of-sight (NLOS) low latency awareness with longer range than Advanced Driver Assistance System (ADAS) sensors, such as radar, lidar, and camera systems. It is to extend a vehicle's ability to see, hear and communicate further down the road, even at blind intersections, while complementing ADAS sensors.

C-V2X was defined by the 3rd Generation Partnership Project (3GPP) in their Release 14 specifications.

The C-V2X trial is expected to begin in 2018. Several use cases are planned, including: Vehicle-to-Vehicle (V2V), Vehicle-to-Infrastructure (V2I) and Vehicle-to-Pedestrian (V2P) direct communications, as well as Vehicle-to-Network (V2N) operations over cellular network-based wide area communications with cloud access.

Some highlights:

  • Continental will utilize the Qualcomm C-V2X Reference Design, which features the Qualcomm® 9150 C-V2X chipset with integrated Global Navigation Satellite System (GNSS) capability to build connected car systems and integrate the systems into Nissan vehicles. 
  • Nissan will perform V2X use case selection and develop test scenarios with key performance indicators (KPIs) for C-V2X technology validation. 
  • OKI will bring their expertise in roadside unit (RSU) infrastructure and applications to demonstrate V2I as a viable technology for advanced traffic applications by integrating the Qualcomm 9150 C-V2X chipset into their RSU. 
  • Ericsson will join the V2N use case discussion involving the combination of direct communication and LTE-A network technologies. 
  • NTT DOCOMO will provide LTE-A network and V2N applications to demonstrate the benefits of the complementary use of network-based communications for a variety of advanced automotive informational safety use cases.

"The C-V2X solution is unique in that it, within a common technology and eco-system, offers both network-based and direct communication for V2X services. With the network-based communication, there is a possibility to provide traffic safety and traffic efficiency services utilizing already existing coverage and penetration of cellular modems and smartphones. It also provides connectivity to various cloud-based services, providing a range of applications and value-added services. In these trials, all stakeholders are present to showcase the strength of the complete solution covering both connectivity and different applications. Ericsson is contributing with leading 4G, 5G radio, and network expertise and by leveraging our understanding of the IoT ecosystem," said Erik Ekudden, chief technology officer at Ericsson.

"This collaborative project will bring together the invaluable knowledge and experience of world leaders in the automotive and telecom domains, and will it be imperative for all parties to underpin their roles in the era of connected cars toward improved road safety and comfort. NTT DOCOMO is determined that our experience in telecommunications systems will be indispensable to maximize the values of C-V2X. This project will set a clear path toward connected cars and roads of the future that materialize the power of C-V2X," said Hiroshi Nakamura, Chief Technology Officer at NTT DOCOMO.