Cellular V2X

Giving vehicles the ability to communicate.

Cellular V2X (C-V2X) technology is designed to connect vehicles to each other (V2V), to pedestrians (V2P), to roadway infrastructure (V2I), to the network (V2N)—basically everything (V2X).

A key part of our vision for the always-connected, more autonomous vehicle of the future.

C-V2X technology complements other vehicle sensor technologies, extending a vehicle ability to “see” further down the road and providing higher level of predictability for enhanced safety and autonomous driving.

Non-line of sight sensing

Provides 360º non-line-of-sight awareness, e.g. at blind intersections/on-ramps.

Conveying intent

Communicates intent and shares sensor data to provide higher level of predictability.

Enhanced situational awareness

Offers increased electronic horizon to enable soft safety alerts and reliable graduated warning.

Establishing the foundation with DSRC.

We have established the foundation for basic V2X safety services with Wi-Fi based Dedicated Short-Range Communications (DSRC), completing large-scale field trials over the last decade with commercially available technology that is available today.

Enhancing safety with cellular V2X.

Tomorrow’s autonomous vehicles require continued technology evolution to accommodate ever-expanding safety requirements and use cases. The path to 5G will deliver this evolution starting with the C-V2X part of 3GPP Release 14. C-V2X provides a higher performance radio, while reusing upper layers defined by the automotive industry.

Direct communications

V2V, V2I, and V2P on “PC5” Interface, operating in ITS bands (e.g. ITS 5.9 GHz) independent of cellular network

Network communications

V2N on “Uu” interface operates in traditional mobile broadband licensed spectrum

Introducing Cellular V2X



Enhanced Direct Communication without network assistance.

C-V2X provides enhanced communication range and reliability, supporting higher vehicle speeds and additional safety needs, e.g., in non-line of slight (NLOS) and challenging road conditions. It is designed to work in the harmonized, dedicated ITS 5.9GHz spectrum without network assistance.

USIM-less operation

C-V2X direct communications doesn’t require USIM.

Autonomous resource selection

Distributed scheduling, where the car selects resources from resource pools without network assistance.

GNSS time synchronization

C-V2X also uses GNSS for time synchronization without relying on cellular networks.

Leveraging existing cellular networks and mobile ecosystem support.

Using network-based communications via traditional cellular infrastructure, as well as direct communications, C-V2X combines the capabilities of roadside units and the cellular network to offer new business models and economic benefits (e.g. combined RSUs and e-NodeBs).

Gaining momentum and broad ecosystem support.

The potential to improve automotive safety and enable autonomous driving is increasing global support for Cellular-V2X (C-V2X). To accelerate its adoption, Qualcomm is taking a critical role in driving the development of C-V2X. At MWC 2017, we are demonstrating the capabilities of our C-V2X trial platform based upon 3GPP Rel-14.

3GPP specification

Initial C-V2X standard completion in September 2016. Further enhancements will follow in 3GPP Rel-14, targeted for completion in March 2017.

Ecosystem support

Broad ecosystem support, including 5GAA, a a cross-industry consortia helps define 5G V2X communications

Field trials

Trials starting in 2017, including ConVeX trial in Germany. Other trials are planned globally throughout 2018.

Cellular-V2X demo video



Strong evolution path to 5G with backward compatibility.

C-V2X strong evolution path in future releases (i.e. Rel-15+) will incorporate 5G NR features, providing high throughput, wideband carrier support, ultra-low latency and high reliability for advanced use cases. 5G V2X (C-V2X Rel-15+) will be designed to support Direct Communications, operating in the same Rel-14 spectrum (ITS 5.9GHz band) with backward compatibility in mind.

Wideband ranging and positioning

Wideband carrier support to obtain accurate positioning and ranging.

High throughput sensor sharing

High throughput and low latency to enable real-time exchange of sensor data and live video images.

Local high definition maps / “Bird’s eye view”

High throughput to build and distribute local, dynamic maps based on camera and sensor data.

Qualcomm is accelerating the future of automotive.

Our leading technology is already enabling the connected car experience today and we are at the forefront of pioneering technologies from vehicle communications to precise positioning and embedded deep learning for the always-connected, more autonomous vehicle of the future.


Webinar: Autonomous Cars of The Future Will Rely on 5G, But How Will We Get There?



The Role of 5G & Cellular V2X in Enabling Tomorrow's Autonomous Vehicle



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