Tapped to lead the FCC during the second Trump administration (see 2411170001), FCC Commissioner Brendan Carr is expected to be as aggressive as possible on spectrum and wireless siting issues, industry experts said. During President-elect Donald Trump's first administration, then-Chairman Ajit Pai made Carr lead commissioner on wireless siting.

The Wireless Future Program at New America is calling on policymakers to take a harder look at rules for indoor-only use of spectrum bands, as the administration studies the future of the lower 3 and 7/8 GHz bands. Michael Calabrese, director of the program, said the group filed its report at the NTIA, at the agency's urging, as part of a multistakeholder review process last month and Monday released a public version. “The potential benefits of different rules for indoor-only use are becoming more evident,” the report said, noting the FCC’s 2020 decision to authorize low-power, indoor (LPI) use across the 6 GHz band. Incumbent licensees already are using the spectrum, including more than 50,000 high-power fixed microwave links, the report said: LPI use is limited “to roughly one-fourth the standard power of Wi-Fi, yet is considered extremely useful since the vast majority of internet data (including at least 80% of mobile device data traffic) is transmitted indoors and over Wi-Fi.” LPI in 6 GHz “highlights the potential to authorize indoor-only use in many other bands where users comply with power, device form factor, database coordination, or other technical requirements necessary to protect the primary licensees from harmful interference,” New America said. While LPI in 6 GHz is authorized under Part 15 of the commission’s rules, “LPI can be adopted as part of a licensed-by-rule framework or licensed exclusively to select categories of facilities (such as factories and schools),” the report said. It notes DOD concerns about sharing the lower 3 GHz band, which the military uses broadly. “Similarly, large portions of the 7 GHz band” are “currently used by sensitive military systems in the United States and in Europe (e.g., NATO operations in 7250–7750 MHz).” New America points to five frequency ranges that may be particularly suitable for LPI use: 3100–3450, 7125–7250, 7250–7750 and 2900–3100 MHZ, and 10–10.5 GHz. Of lower 3 GHz it says that “while a dynamic coordination system should enable DOD to share at least portions of the band for low-power use outdoors … a broader underlay authorization for LPI use should be considered as an option for this band.”

The Biden administration is making progress on each of the five bands it's studying as part of the national spectrum strategy (see 2311130048), Shiva Goel, NTIA senior adviser-spectrum policy, said during a Center for Strategic and International Studies webinar late Thursday. Other speakers said the government must make available more high-powered licensed spectrum to ensure the nation doesn’t fall behind China and other competitors.

The FCC got dozens of comments on an August NPRM from wireless carriers, tech companies and others on further changes to rules for the citizens broadband radio service band (see 2408160031). In filings posted through Thursday in docket 17-258, commenters disagreed sharply on a proposal by carriers to more closely harmonize CBRS rules with those for the adjacent 3.45 GHz and C-band.

The future success of the wireless industry depends on having a single standard worldwide for mobile communications, Adrian Scrase, former chief technology officer at the European Telecommunications Standards Institute, said Tuesday during an RCR Wireless industrial 5G forum. Multiple standards are “just not tenable if we’re to have economic success,” said Scarse, now a consultant for the Global Mobile Suppliers Association.

Senate Intelligence Committee Chairman Mark Warner, D-Va., said during a Thursday Punchbowl News event he would prefer the chamber pursue a middle-ground between the Spectrum and National Security Act (S-4207) and 2024 Spectrum Pipeline Act (S-3909) as a legislative package for renewing the FCC’s lapsed airwaves auction authority. He also voiced concerns about the Biden administration’s implementation of $65 billion in broadband money from the Infrastructure Investment and Jobs Act, echoing criticisms congressional Republicans raised about how long it has taken for funded projects to come online.

Senate Commerce Committee ranking member Ted Cruz, R-Texas, will likely redirect the panel's airwaves legislative focus toward a version of his 2024 Spectrum Pipeline Act (S-3909) next year should Republicans control the Senate after the Nov. 5 elections and he becomes chairman. Cruz could face continued headwinds from DOD's staunchest Capitol Hill backers if he pursues legislation similar to S-3909, lobbyists and others predicted. Current Senate Commerce Chair Maria Cantwell, D-Wash., hopes she can attach her rival Spectrum and National Security Act (S-4207) to an end-of-year omnibus package (see 2409170066).

The Biden administration is moving forward on the national spectrum strategy, in some cases more quickly than is widely recognized, Shiva Goel, NTIA senior spectrum adviser, told the Mobile World Congress in Las Vegas last week. Goel’s comments build on the remarks of NTIA Administrator Alan Davidson at MWC (see 2410090045). “We're hard at work already on lower 3 and 7 and 8 [GHz],” Goel said. “We're bringing lower 37 [GHz] to a close” and “18 GHz is in full swing already, and then there's everything else.” Goel said DOD, which is working with NTIA on the lower 3 GHz study, hasn’t been “secretive” about its “preference for a … solution” based on dynamic spectrum sharing. “We're supporting” DOD “in building a demo of that capability,” but “that doesn't mean we can't also collaborate on other options for the band.” The strategy’s research and development plan is in its final stages, he said. On staffing, “we're getting the agencies together to spot gaps and ways to fill them to make sure we have people in government able to do this work far into the future.” Goel continued: “Our spectrum problems aren't getting any easier.” The relationship between NTIA and the FCC “is as good as I've ever seen it,” said Ira Keltz, the commission’s new acting chief engineer. The No. 1 priority is the proposed spectrum pipeline and the FCC’s Spectrum Steering Team, which he co-chairs, is hard at work, Keltz said. “We've got plenty of staff at the commission completely engaged in all the activities that are going on.” The top priorities are the lower 3 and 7.8 GHz studies, but the FCC is also focused on 37 GHz, he said. “There's still a ways to go” on the strategy, said Will Johnson, Verizon senior vice president-federal regulatory and legal affairs, “but there [are] also things to celebrate.” The wireless industry knows it will need about 1,500 MHz of mid-band spectrum over the next 10 years, and the pipeline “still remains fairly uncertain,” Johnson said: “We know some bands that are being studied. … But in terms of knowing which bands are actually going to make their way all the way through to commercial use, to auction, we're pretty far from having that kind of clarity at this point.” Luciana Camargos, GSMA head of spectrum, called for more leadership from the U.S. During the World Radiocommunication Conference last year, the U.S. message was that it didn’t want international mobile telecommunications in the 6 GHz band, but it failed to offer alternatives, Camargos said. The U.S. “didn't even support the new agenda item” looking at 4, 7 and 15 GHz, she said: “To me, that's very relevant. … If you don't support looking forward, how can you lead on this?” Keltz said the FCC understands wireless industry concerns about a spectrum pipeline. "We need high-powered dedicated spectrum," he said: "I think we need a little of everything. ... We need to make sure that our unlicensed industry has spectrum they can use." CTIA and GSMA co-sponsor MWC.

Industry officials continued questioning AT&T’s Wednesday proposal that calls for major changes in how 3 GHz, including the citizens broadband radio service band, is configured (see 2410090037). Monisha Ghosh, University of Notre Dame engineering professor and former FCC chief technologist, said AT&T's proposal leaves some questions unanswered. While in principle it’s “desirable to have high-power and low-power users separated by one boundary, the AT&T proposal doesn’t address how the existing Navy radars in the CBRS band will be protected” or “relocated and how spectrum sharing in 3.1-3.45 GHz will be implemented,” Ghosh told us, noting there are now 120 different kinds of radar in the band. Ghosh warned against drawing conclusions before the administration completes its study of the lower 3 GHz band called for in the national spectrum strategy. Moreover, Ghosh disagreed with AT&T that CBRS is "underutilized.” Relocating CBRS devices into another band that’s not an existing 3rd Generation Partnership Project band wouldn’t be a “trivial” problem, she said. Meanwhile, Public Knowledge Senior Vice President Harold Feld wrote in an email, “When you have a hammer, everything looks like a nail,” and when you’re a carrier “everything looks like it should be optimized for mobile broadband.” Feld added, “CBRS was designed to permit new kinds of innovation by different actors, such as stadiums, large warehouses, ports, or enterprise customers looking to run their own private networks.”

FCC Commissioners Nathan Simington and Geoffrey Starks warned the Mobile World Congress in Las Vegas that the FCC’s loss of general spectrum auction authority last year is hampering U.S. competitive efforts against major rivals in the 6G race. CTIA President Meredith Baker sounded a similar theme at the beginning of the conference, which CTIA sponsors with GSMA (see 2410080044).