FCC Voted on Nov. 18th to Modernizes the 5.9GHz Band for Wi-Fi and C-V2X
FCC Released New Changes in 47CFR Part 15, Part 90 and Part 95 for Wi-Fi and C-V2X
The Federal Communications Commission (FCC) adopted new rules for the 5.9 GHz band (5.850-5.925 GHz) to make new spectrum plan (5.850-5.895 GHz) available for unlicensed uses, such as Wi-Fi, and the upper 30 megahertz (5.895-5.925 GHz) for enhanced automobile safety using Cellular Vehicle-to-Everything (C-V2X) technology.
The bottom 45 MHz of DSRC bandwidth has been reassigned to unlicensed Wi-Fi use. Indoor services may begin using the new spectrum immediately. DSRC-based systems will have one year to vacate that spectrum. Following Part 15.407, when the client devices and indoor access points operating in the 5.850-5.895 GHz band must employ a contention-based protocol. And, client devices must operate under the control of an indoor access point.
The top 30 MHz of the band will be retained for so-called Intelligent Transportation System services—but not those based on DSRC. The commission says the new U.S. standard will be cellular-based vehicle-to-everything (C-V2X) technology.
FCC also adopted a Further Notice of Proposed Rulemaking which proposes technical rules for outdoor unlicensed operations across the United States (except for limited number of areas) in the lower part of the band once ITS operations have vacated that spectrum.