GM plans to use Cisco tech to test compatibility of Wi-Fi and vehicle-to-vehicle systems in 5.9 GHz band

General Motors expects to begin testing new technology from Cisco Systems to share spectrum between vehicle-to-vehicle (V2V) and Wi-Fi systems, a GM executive told U.S. lawmakers. In May Cisco, the Alliance of Automobile Manufacturers and the Association of Global Automakers had indicated they were preparing to test the "listen, detect and avoid" protocol in the dedicated short range communications (DSRC) 5.9 GHz band. 

The goal of the Cisco technology would be to let both Wi-Fi devices and V2V safety systems work in the 5.9 GHz band without causing interference, according to GM's written testimony posted to the House Subcommittee on Commerce, Manufacturing and Trade website on Wednesday ahead of a hearing on V2V technology today. 

GM wants to deploy V2V technology in its 2017 Cadillac CTS sedans, Reuters noted. "We are very optimistic about a sharing proposal from Cisco that would operate on a 'listen, detect and vacate' basis," said Harry Lightsey, executive director of GM's Global Connected Customer Experience unit. "We have engaged with Cisco and plan to begin testing their technology as soon as possible."

A group of U.S. lawmakers recently reintroduced the Wi-Fi Innovation Act, which directs the FCC to "move swiftly" in seeking comments and conducting tests to assess the feasibility of opening the 5850-5925 MHz band to unlicensed use. FCC Commissioners Michael O'Rielly and Jessica Rosenworcel have come out in support of exploring whether unlicensed services could operate in the U-NII-4 band without causing harmful interference to DSRC. Article

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