Google, Qualcomm Answer FCC Questions on 6 GHz Exclusion Zones
Representatives of Google and Qualcomm addressed questions from the FCC Office of Engineering and Technology on the possibility of subjecting very-low-power (VLP) devices to exclusion zones in the 6 GHz band, as proposed by some band incumbents. “If the Commission…
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were to require some system of exclusion zones, it could ensure that VLP exclusion zones would be no larger than a 6 GHz automated frequency coordination system would have computed for a device at the same power level,” said a filing posted Thursday in docket 18-295. “At the very least these exclusion zones should account for 3 dB of polarization mismatch loss, up to 3 dB of feeder loss (depending on the Fixed-Service radio), and a Fixed-Service receiver noise figure of 4.0-4.5 dB, depending on frequency,” they said. The FCC proposed in an April 2020 Further NPRM to allow VLP devices to operate in the band indoors without use of AFC (see 2306230046).