FCC Offers Guidance for Ongoing 5.9 GHz Transition
The FCC provided guidance for intelligent transportation system licensees seeking to move from dedicated short-range communications (DSRC) operations to cellular-vehicle-to-everything-based technology in the upper 30 MHz of the 5.9 GHz band. New C-V2X-based rules went into effect Tuesday, said a…
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notice that day in docket 19-138. The FCC fundamentally changed the rules for the band in October 2020, reallocating the 5.9 GHz band to sharing between Wi-Fi and C-V2X, with no set-aside for DSRC, the historical allocation for the spectrum. The Wireless and Public Safety bureaus said they have reinstated roadside unit (RSU) licenses that were terminated in 2022 due to a failure to notify the commission they had ceased intelligent transportation system (ITS) operations in the lower 45 MHz of the band. Licensees now have an additional 90 days to provide the required certification, the notice said. All Part 90 ITS licensees currently authorized to operate DSRC-based technology in the upper 30-MHz portion are eligible to modify their RSUs for C-V2X deployment in compliance with the new rules, the notice said: “Similarly, any entities that aspire to operate ITS systems may apply for ITS licenses … but only for the purpose of registering and operating C-V2X-based RSUs in their proposed geographic area of operation.”