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Warner Norcross + Judd LLP is a corporate law firm with over 230 attorneys serving clients in nine offices throughout Michigan. Among the largest law firms in Michigan, Warner works in virtually all areas of business law.

Michigan Law Firm - Warner Norcross + Judd LLP

One of the most important choices that those designing equipment and infrastructure for connected vehicles must make is this: which communications technology will they use? There may be a wide range of possibilities in the future, but for now, there are two primary options: Dedicated Short Range Communications (DSRC) radio and 5G wireless technology.

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DSRC is the technology that is currently predominate in the U.S. connected vehicle market. In fact, it is prescribed by federal regulators. In Report and Order FCC-03-324, the Federal Communications Commission (FCC) allocated 75 MHz of spectrum in the 5.9 GHz band for use by ITS vehicle safety and mobility applications. DSRC-based communications is a major research priority of the Joint Program Office (ITS JPO) at the U.S. Department of Transportation (U.S. DOT) Research and Innovative Technology Administration (RITA). In 2016, the National Highway Traffic Safety Administration (NHTSA) initiated the rulemaking process for a mandate that would require all cars sold in 2023 to come equipped with DSRC-based V2V technology. The 2017 Cadillac CTS sedan—the first mass-market vehicle to include V2V capability—uses DSRC technology. DSRC also enjoys strong support from the trade association Global Automakers, in which Honda, Nissan and Toyota participate. &nbsp; There is, however, a technology that competes with DSRC: 5G cellular communication. Volkswagen has announced all of its autonomous vehicles will be powered by 5G and the Chinese company Baidu recently completed a test of 5G-enabled autonomous cars. Some advocates in certain industries and companies are vocal about the perceived advantages of 5G over DSRC, including greater interoperability, wider bandwidth, increased cybersecurity, and a decentralized network that runs on private cell towers instead of dedicate roadside units that the government has to pay for and maintain. Many argue that fully autonomous vehicles will not be feasible without widespread 5G connectivity. Moreover, 5G offers many of the same advantages for other Internet of Things (IoT) and “smart city” applications, so development of the network is inevitable whether or not it is used for cars. &nbsp; Many of the perceived drawbacks of DSRC, though, will only manifest in the future. Right now, the federal DSRC mandate remains in place, but many V2V efforts remain centered on DSRC. There are no cars on the road that require 5G or towers that provide it. And in the end, there may not be a binary answer; many have suggested that DSRC and 5G solutions will prove to be complementary rather than competitive, offering multiple sensor inputs for different levels of tasks and ultimately leading to a safer driving experience. &nbsp; For now, the most important thing is to stay informed on the technological requirements for emerging vehicle technologies and remain flexible enough to adapt to changing trends. No one wants to end up building a Betamax car for a VHS network.

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DSRC v. 5G: Which Will It Be for Connected Vehicles?

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DSRC v. 5G: Which Will It Be for Connected Vehicles?

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