Wi-Fi advocates and 6 GHz incumbents disagreed sharply on an FCC proposal to expand the parts of the 6 GHz band where very-low power (VLP) devices can operate without coordination, beyond the initial 850 MHz commissioners approved last year (see [Ref:2310190054). In one development of note, tech companies saw support for a proposal to create a geofenced variable power (GVP) device class. Replies were posted Monday in docket 18-295.

The Senate Commerce Committee confirmed Thursday the panel plans to mark up the draft Spectrum and National Security Act and five other tech and telecom-focused bills during a Wednesday executive session, as expected (see 2404240074). The 108-page draft measure from committee Chair Maria Cantwell, D-Wash., would restore the FCC’s spectrum auction authority through Sept. 30, 2029, also as expected (see 2403210063). The proposal also provides a new vehicle for allocating stopgap funding for the commission’s ailing affordable connectivity program amid a delay in advancing a separate House-side bid to force a floor vote on providing that money, lobbyists told us.

Companies offering automated frequency coordination systems in the 6 GHz band told the FCC they have launched a portal for reporting interference. The companies said the portal should satisfy a requirement that the Office of Engineering and Technology imposed. “We have committed significant effort and resources to develop an efficient, centralized means for authorized 6 GHz incumbents to report potential harmful-interference events,” said a filing posted Friday in docket 21-352. “All information submitted through the Portal is automatically shared with the approved 6 GHz AFC system operators” and the FCC, including the Enforcement Bureau, the filling said. Broadcom, Comsearch, Federated Wireless, Qualcomm, Sony Group, Wi-Fi Alliance Services and the Wireless Broadband Alliance signed it.

AT&T urged the FCC to establish requirements for how interference is addressed in the 6 GHz band as automated frequency coordination systems open (see 2404050012). “The interference reporting and resolution system should not impose barriers or difficult validation requirements for incumbents to report interference” and “should be regularly publicized” by AFC systems to incumbents, said a filing Tuesday in docket 21-352. The reporting system should be available at all times, AT&T said: “In cases where interference cannot be narrowed to a specific AFC, AFC systems should be prepared to serially and sequentially increase the protection for the victim link in order to isolate coordination problems.”

Representatives of the Bluetooth Special Interest Group (SIG) met with various FCC offices on the group’s push to use the 6 GHz band (see 2305260032). Members “discussed the progress the Bluetooth industry is making towards developing methods for Bluetooth sharing with other unlicensed devices in the lower 6 GHz band,” the SIG said in a Monday filing in docket 18-295. They discussed standards development work with the IEEE, European Telecommunications Standards Institute and other standards groups. The group is considering filing a petition for rulemaking, the filing said. The group met with Chief Ron Repasi and others from the Office of Engineering and Technology and aides to Chairwoman Jessica Rosenworcel and Commissioners Brendan Carr and Anna Gomez.

The Fixed Wireless Communications Coalition urged the FCC to take a cautious approach in making any changes to power spectral density rules for automated frequency coordination systems in the 6 GHz band, as sought by Broadcom and others. “To ensure transparency in future changes to AFC systems” the group asked the commission to “require operators making changes to their AFC to rerun the test vectors required by the Office of Engineering and Technology’s testing plan public notice and file a copy of the resulting report in the docket for public comment,” said a filing posted Monday in docket 21-352. The Broadcom letter “raises a crucial question about how changes to AFC systems will be made going forward,” the FWCC said: The OET public notice “did not specify what information would be necessary in future public notices regarding changes to an AFC” and the Broadcom letter “gives the Commission the opportunity to provide clarification on that question now.”

Commenters disagreed sharply on what mechanisms the FCC should use to make available unassigned licenses in its inventory absent general auction authority. Comments were posted Tuesday in docket 24-72. The FCC sought comment in March on the first anniversary of the expiration of its general auction authority (see 2403070062). Wireless carriers said grants of special temporary authority (STA) are the best alternative. Unlicensed advocates hailed the benefits of dynamic spectrum sharing.

APCO supported comments from the Edison Electric Institute and other groups representing incumbent 6 GHz users that the FCC should revisit how interference is addressed as automated frequency coordination systems open (see 2403260046). “APCO agrees with other representatives of incumbent 6 GHz users that, absent input from incumbents and oversight from the Commission, this resource for mitigating interference will fail to provide what’s needed for critical communications,” said a filing Thursday in docket 21-352: “APCO urges the Commission to adopt clearer guidelines, enhance transparency, and facilitate a more inclusive approach to the development and modification of AFC systems and procedures that impact critical communications.”

The Ultra Wide Band Alliance supports an FCC proposal expanding parts of the 6 GHz band where new very-low power (VLP) devices can operate without coordination and allowing client-to-client operations (see 2403280038), said a filing posted Thursday in docket 18-295. But the alliance opposed increasing VLP power above current levels. “UWB has been operating in the frequency range of 3.1 GHz to 10.6 GHz on an unlicensed basis for over 20 years,” the group said: It's often “misstated” that a 2020 order “opened the 6 GHz band for unlicensed operation” when “the band had been in use on an unlicensed basis for two decades at that time.”

Comparisons of 5G spectrum allocations and investments in China, the U.S. and Europe often lack detail or rely on data with different definitions, Dean Bubley of Disruptive Analysis wrote in a LinkedIn post Wednesday. Such comparisons "are mostly political and competitive." In addition, those who make such comparisons are often seeking more stringent regulation of a perceived competitor, he said. Claims that China has more midband spectrum allocated than the U.S. ignore that the 3.3-3.4GHz is dedicated for shared, indoor use by multiple mobile network operators, while 200MHz in the lower 6 GHz band is for "localised enterprise private networks," he said. Citing wireless interests seeking additional spectrum for fixed wireless access, Bubley said it is "rather disingenuous ... to complain about traffic volumes on mobile networks ... and then specifically promote services that they know will use 20x more data per subscriber."