FirstEnergy Study Raises 6 GHz Interference Concerns
A study by utility FirstEnergy said contention-based protocols or low-power-indoor operations aren’t enough to curb interference to fixed-service operations by utilities in the 6 GHz band. “The experimental results confirm an additive interference effect when more than one [device] is…
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simultaneously operating co-channel with the FS system,” the report said: “The study only represented a small sampling of sites and there are anticipated to be hundreds, and in some cases thousands, of future unlicensed Wi-Fi 6E sources of interference along each microwave path.” Researchers studied the effects of two Wi-Fi 6E devices on two microwave paths of an existing, incumbent FS station in central New Jersey. Commissioners approved a Further NPRM 5-0 in April 2020 (see 2004230059) that examines further liberalization of the agency’s 6 GHz rules.