Qualcomm tackles C-V2X connectivity gaps

Recognising the inherent safety concerns with gaps in C-V2X connectivity, Qualcomm has developed a way to extend coverage to places where Global Navigation Satellite System (GNSS) signals are not available—such as a long tunnel or deep parking structure.
September 20, 2022
Jim Misener of Qualcomm
Jim Misener of Qualcomm

Called sidelink synchronization signal (SLSS), the technology is being demoed at ITS World Congress and will be presented by Qualcomm to SAE International next week as a way to formally start the standardisation process.

“There’s no way that C-V2X should be cut off as you go through a tunnel,” said Jim Misener, Qualcomm’s global V2X ecosystem lead. “We’re helping to bridge the gap and make sure people are able to communicate hazards and work zones as vehicles make their approach. This will reduce road incidents and potentially save lives.”

Qualcomm’s SLSS demo shows a car traveling through the Lincoln Tunnel connecting New Jersey to New York City. As it progresses past GNSS coverage, the vehicle receives a SLSS C-V2X enabled notification that there is a work zone ahead. A timer counts down the distance and time to collision – information that can be acted upon by an autonomous driving system or manually by a driver.

According to Misener, the technology can also be used for autonomous valet parking and other V2X applications where GNSS signals are not available.

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