Tech Companies Defend Report on Wi-Fi in 6 GHz Band
A group of companies pursuing unlicensed use of the 6 GHz band filed a letter at the FCC in support of a report by RKF Engineering Solutions the companies say shows the band can be opened without harmful interference to…
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incumbents (see 1801260043). “By demonstrating that potential interference between RLAN [radio local area network] devices and FS [fixed service] is confined to only specific, rare situations, and ruling out the possibility of widespread aggregate interference to FS, the RKF Study has narrowed the appropriate technical discussion to two discrete issues,” said Apple, Broadcom, Cisco, Facebook, Google, Hewlett Packard Enterprise, Intel, Microsoft, Qualcomm and Ruckus Networks. “Under what circumstances will RLAN operation within the main beam of an FS link pose a substantial risk of harmful interference?” and “What are the most appropriate mitigation measures to effectively address that risk?” the filing said. The answer to the first concern is “RKF demonstrated that even in the case of main-beam RLAN operations, RLAN devices are very unlikely to cause harmful interference to FS by materially degrading overall link reliability,” the tech companies said. On the second, “the undersigned companies have provided a framework for interference-protection rules that would segment the 6 GHz band and would allow the FCC to apply specific mitigation measures tailored to each sub-band,” said the filing, posted Monday in docket 17-183.