Howard Buskirk

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.

CTIA told the FCC that U.S. networks are secure in comments on a notice from the FCC Public Safety Bureau on providers’ implementation of security counter-measures to prevent the exploitation of vulnerabilities in the Signaling System 7 (SS7) and Diameter protocols to track the locations of consumers through their mobile devices. Comments were due Friday in docket 18-99. Major carriers emphasized that their systems were updated to address risks. That was also the industry message when the agency asked about Communications Security, Reliability and Interoperability Council recommendations on diameter protocol security four years ago (see 2003120030). “U.S. providers’ commitment to security has resulted in U.S. networks being relatively more secure from legacy SS7 and Diameter risks than networks in other regions,” CTIA said. CTIA explained that technology is evolving. Legacy SS7 signaling is used today only in legacy 2G and 3G networks and Diameter in 4G and non-stand-alone 5G networks and “was deployed to help reduce risks associated with SS7 and is less susceptible to attacks,” the group said. Stand-alone 5G networks use HTTP/2 for signaling. Verizon said it knows of no successful attempts to access network user location data on its network using weaknesses in the SS7 or Diameter protocols since CSRIC’s adoption of best practices in 2018. “As Verizon explained in response to previous public notices relating to SS7 and Diameter security, in interviews with Commission staff, and in its responses to the Letter of Inquiry received from the Bureau” in October 2022 “we have implemented the relevant recommendations issued by the CSRIC and GSMA on signaling security,” the carrier said. As noted in previous filings, “AT&T has employed an aggressive, multifaceted approach to SS7 and Diameter security” and “continues to take significant, aggressive steps to protect the SS7 and Diameter networks including implementation of CSRIC’s working group recommendation,” the carrier said.

FCC commissioners approved fines against the then-four national wireless carriers for allegedly not safeguarding data on customers' real-time locations, in orders released Monday. The vote was 3-2. AT&T, T-Mobile and Verizon plan to appeal.

NTIA “is hard at work” implementing the national spectrum strategy, the agency said as it offered details on its progress. Derek Khlopin, deputy associate administrator-spectrum planning and policy in the Office of Spectrum Management, is now in charge of implementing the plan for NTIA, the agency said: “First up: initiating technical studies of spectrum bands -- including a process to streamline funding to federal agencies -- and kicking off the exploration and demonstration of advanced spectrum management techniques including Dynamic Spectrum Sharing.” NTIA is working with other federal agencies on “streamlining” the process for receiving money from the spectrum relocation fund (SRF) and anticipates distributing funds in October. “We expect that more than 10 federal agencies will seek funding, and our hope is this streamlined process will make the application process easier and quicker for these agencies,” it said. Under a three-step process, each agency must submit an application for funding, which is reviewed by a Technical Panel, chaired by NTIA, with representatives from the Office of Management and Budget and the FCC, which considers the request. “If approved by the Technical Panel, OMB notifies Congress and, after a mandatory 60-day waiting period, disperses the funds to each requesting agency,” NTIA said. It noted the presentation DOD made at CTIA this month on dynamic spectrum sharing (see 2404080063) but said it was “separate and apart” from a study that’s getting underway on the lower 3 GHz band's future. NTIA released the implementation plan for the strategy in March (see 2403120056).

T-Mobile is considering how to use its growing fiber footprint to further bolster its Home Internet base, CEO Mike Sievert said on a call with investors late Thursday. T-Mobile earlier in the day unveiled a joint venture with infrastructure investor EQT (see 2404250047).

The FCC Wireless and International bureaus approved, subject to conditions, T-Mobile’s proposed acquisition of Mint Mobile (see 2303150032) and other assets from Ka’ena. Mint Mobile is a low-cost prepaid wireless brand. Meanwhile, T-Mobile announced plans Thursday to partner with private equity firm EQT as part of a proposed acquisition of fiber-to-the-home provider Lumos.

Industry groups largely questioned the wisdom of using the voluntary cyber mark program for IoT devices, approved in March, to further clamp down on international security threats. But the proposals also received some support from the Internet Protocol Video Market (IPVM) and Whirlpool. FCC commissioners approved 5-0 a Further NPRM, along with the implementing order, asking about software and hardware from countries of national security concern and whether data from U.S. citizens will be stored abroad (see 2403140034). Comments were posted Thursday in docket 23-239.

Carriers worldwide are moving to cloud-native networks in part because they have no choice, experts said Wednesday during a virtual TelecomTV forum on digital support systems. In addition, carriers, they said, increasingly want to work with hyperscalers, the large cloud service providers. Carriers seek access to their expertise.

Eager to win FCC approval of its proposed buy of Mint Mobile (see 2303150032), a low-cost prepaid wireless brand, and other assets from Ka’ena, T-Mobile told the FCC it would agree to a handset unlocking requirement. Public and consumer interest groups have asked the FCC to push for that concession (see 2402060025). “Within 60 days of the closing of the transaction, T-Mobile commits to implement an unlocking policy applicable to all Mint Mobile and Ultra Mobile devices activated on the T-Mobile network both pre- and post-closing,” said a filing posted Wednesday in docket 23-171. T-Mobile said it views the concession as unnecessary but wants to ensure prompt FCC approval. The company "believes that the public interest benefits of its proposed acquisition of the Mint Mobile and Ultra Mobile wireless brands and their customers are clear and compelling and that no credible competitive concerns have been raised with respect to the proposed transaction,” the filing said. T-Mobile reports quarterly earnings after the close of the financial markets Thursday. “It is good to see progress on the issue, though the voluntary commitments do not quite match what we asked for in the record,” emailed PK Legal Director John Bergmayer. “There are some timing differences,” but the biggest difference is T-Mobile is committing to unlocking Mint Mobile and Ultra Mobile devices, “as opposed to all devices on the T-Mobile network,” he said: “It’s not just Mint customers that would benefit from unlocking, and having a uniform policy would probably be simpler.” It’s “in the public interest to unlock all new devices on T-Mobile’s network, not only the acquired Mint Mobile customers,” said Michael Calabrese, director of the Wireless Future Program at New America: “A uniform policy for all T-Mobile customers would also bring the U.S. closer to the sort of industry-wide unlocking policy that is already required by the regulators in Canada” and the U.K.

AT&T added 349,000 net postpaid phone customers, which was far better than Wall Street expectations, and saw record low churn in Q1, CEO John Stankey said Wednesday as the carrier reported quarterly results. Stankey apologized for the nationwide wireless outage that hit customers Feb. 22 (see 2402220058). Compared to Verizon, whose shares sunk after it reported results Monday (see 2404220042), AT&T was up 1.88%, closing the day at $16.82.