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20 04 2017 02

The National Highway Traffic Safety Administration (NHTSA) says in its Notice of Proposed Rulemaking (NPRM) for mandating Vehicle to Vehicle (V2V) communications that cellular networks can’t support V2V due to dead spots and security risks, but Qualcomm says that's not so.

To be clear, Qualcomm supports Dedicated Short Range Communications (DSRC) as a useful technology—and it’s got second-generation 802.11p DSRC chips to prove it. “But the NPRM’s definition of interoperability picks DSRC as the de facto technology winner,” the company said in comments to the NHTSA that were due April 13. “We believe there should be an objective evaluation based on realistic deployment models that assess variations of a mandate and market penetration of 4G LTE and 5G devices that include C-V2X capabilities.”

The NHTSA is considering a proposal that would require V2V communication to use DSRC devices to transmit messages about a vehicle’s speed, heading, braking status and more to surrounding vehicles, as well as to receive comparable information from surrounding vehicles. But a final decision has yet to be made, and numerous stakeholders in the wireless industry want the government to refrain from mandating DSRC as 5G and cellular-based technologies are emerging to do what they consider a better job.

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