Tech Players, Public Interest Groups See Broad Support for 6 GHz Unlicensed
Big tech companies, plus Broadcom and the Public Interest Spectrum Coalition (PISC), separately told the FCC they fear nothing from indoor, low-power unlicensed use of 6 GHz spectrum and shouldn’t require frequency coordination. Replies were due Monday on an NPRM,…
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in docket 18-295, with some other commenters urging caution (see 1903180047). “Comments make it clear that in the vast majority of locations, times, and configurations, [radio local access networks] would not be positioned to even potentially cause harmful interference to incumbents,” the tech companies said. Some commenters raise concerns, they said: “With few exceptions, these commenters either provide no empirical support for these claims or repeat flawed arguments that have already been presented and addressed in prior phases of this proceeding.” The filing was signed by Apple, Broadcom, Cisco, Facebook, Google, Hewlett Packard Enterprise, Intel, Marvell Technology, Microsoft, Qualcomm and Ruckus Networks. Broadcom separately said fixed-service proponents warn of a threat that doesn’t exist. “FS interests now focus on unlikely corner-case interference scenarios in arguing for additional regulation, Broadcom said: “In the vast majority of situations, however, RLANs will not be positioned to raise any harmful interference concerns at all. And an analysis of FS system operations shows that if the unrealistic combination of improbable events conjured by FS interests somehow were to occur, it would not degrade FS operations in the real world.” The record shows “diverse and strong support” for allowing unlicensed use across all 1,200 MHz from 5925 to 7125 MHz, and “broad support” for low-power and indoor-only use in the U-NII-6 and U-NII-8 segments without a coordination requirement, PISC said. “Base policies on risk-informed interference assessments and not unrealistic worst-case scenarios.” The Open Technology Institute at New America, Consumer Federation of America, Public Knowledge, Consortium for School Networking, Access Humboldt and X-Lab signed. They advised caution. NAB warned “no commenter has proposed an effective mechanism for protecting important broadcast auxiliary services operations” in the U-NII-6 and U-NII-8 bands. “Uncoordinated unlicensed use” here “risks crippling interference to licensed BAS services,” NAB said. Given the “already diverse and critical use of the spectrum, it is not surprising that … comments question the viability of adding millions or possibly billions of unlicensed devices into the band without causing interference to higher priority services that already rely on the spectrum,” said the National Public Safety Telecommunications Council.