Targeting the FCC in 2020Temporarily open 5.9GHz frequency band resources in the United StatesBy splitting the 75MHz bandwidth originally planned for DSRC (Desktop Short Range Communications) and using 45MHz of bandwidth as unlicensed white space spectrum to expand the range of Wi-Fi wireless network signals, the FCC was protested by the American Intelligent Transportation Association and the American Power Transportation Association. The court earlier ruled that the FCC's decisionNo impact, and rejected the protests of the American Intelligent Transportation Association and the American Power Transportation Association.
The 5.9GHz wireless frequency band in the United States was first planned for vehicle communications as early as 1999. The actual frequency band is between 5.850GHz and 5.925GHz. However, considering the slow progress of the U.S. Department of Transportation in promoting vehicle communication applications, and the increase in Internet demand in the United States due to the impact of the epidemic in 2020, the FCC then split the 75MHz bandwidth originally planned for vehicle short-range communications (DSRC) again. Among them, 30MHz of the bandwidth is still allocated for transportation and vehicle safety, and the remaining 45MHz of bandwidth is used as unlicensed white space spectrum.
In this way, white space spectrum can be used to expand the existing Wi-Fi wireless network signal transmission bandwidth, while also improving network transmission efficiency in remote areas such as rural areas.
However, the Intelligent Transportation Systems Association of America and the Power Transportation Association of America subsequently protested this, believing that the FCC's move would affect the development of vehicle communication applications and would be detrimental to the promotion of technologies such as autonomous driving and advanced driver assistance. However, the FCC stated that the 5.9GHz wireless frequency band was originally planned to be used to expand bandwidth. At the same time, it also criticized the applications originally planned to use this frequency band for developing too slowly, resulting in resource occupation.
