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On 3 May 2021, the US Federal Communications Commission (FCC) published its final report and order, and further notice of proposed rulemaking, related to the proceedings on 5.9 GHz, starting the clock on the reallocation of 45 MHz of the 75 MHz spectrum to unlicensed devices, such as Wi-Fi.
Given the date of this order’s publication, unlicensed devices will begin to have access to the lower 45 MHz of the 5.9-GHz spectrum on 2 July 2021. This implies that only 30 MHz will be left for safety-related applications using vehicle-to-everything (V2X) communication from this date.
The further notice of proposed rulemaking covers issues related to spectrum reallocation that were not settled in the previous proceeding, including reimbursement for V2X incumbents, harmful interference concerns, and a possible alternative spectrum for V2X communications. Initial comments on this proposal were due on 2 June 2021, while reply comments were due on 2 July 2021.
Full Article: IEEE Vehicular Technology Magazine, Volume 16, Number 3, September 2021 | 
