AT&T leases spectrum to AST SpaceMobile

Posted on June 2, 2023

AT&T leases spectrum to AST SpaceMobile

AT&T is moving closer to making satellite-to-cellular calling a reality by entering a long-term spectrum lease agreement with AST SpaceMobile. In an FCC filing, AT&T said that it will lease to AST certain 850 MHz cellular A and B block spectrum as well as certain lower 700 MHz B and C block spectrum.

An AT&T spokeswoman explained that the leases are ‘non-exclusive’ and that AST’s satellites will not transmit in areas covered by AT&T’s terrestrial cellular network. “For example, we might cover 80 percent of the area of a 700 MHz license, and AST could train spot beams on the remainder,” she said.

In the FCC filing, AT&T further elaborated on the deal, noting that AST intends to provide broadband access “directly to AT&T customer handsets that operate on the Leased Spectrum, without any modifications or the use of special chipsets, and without the buildout of any additional terrestrial wireless infrastructure.”

AT&T further noted that this arrangement includes providing temporary coverage after natural disasters.

The lease arrangement is intended to begin immediately but AST must get FCC approval before it can start transmitting in the designated spectrum bands.

AT&T’s decision to lease spectrum to AST SpaceMobile demonstrates the operator’s growing support for direct satellite-to-cellular communications. This announcement comes just a few weeks after AST completed what it claims is the first direct voice connection from space on an unmodified smartphone. That test call, which was conducted in Midland, Texas, used AT&T’s Band 5/850 MHz spectrum and was conducted over a Samsung Galaxy S22 smartphone.

Click here to read the full article from Fierce Wireless.

A satellite-cellular merger could be the next revolutionary tech innovation

Posted on May 30, 2023

A satellite-cellular merger could be the next revolutionary tech innovation

From time-to-time, important technologies merge and change the world forever. This is what happened when cellphone, internet, digital camera and GPS technologies merged into today’s smartphones.

Smartphones were less the invention of a new technology than an economic and engineering innovation that integrated technologies previously considered quite separate. We may be on the verge of the next major technology integration with the merger of satellite communications (satcom) with cellular communications (cellcom).

Earlier this year, the Federal Communications Commission (FCC) opened a complex, far-reaching proceeding in which it proposes to integrate satellite and cellular communications in a way that would allow smartphones to communicate through either a cell tower or a satellite. The proceeding is revolutionary because it proposes to integrate what has until now been considered two utterly different technologies and completely separate regulatory environments.

As recently as the 1990s, it could have been compared to combining a freezer with an oven or a hunting license with a driver’s license. This initiative would classify satcom using one’s smartphone as a “supplement” to one’s cellular service when no cell service is available. I believe, however, that it represents only the first step in the merger of these two important technologies.

This results from dramatic changes in the technologies, economics and applications of both satellite and cellular communications. Over time, it opens the possibility of redefining how we think about engaging in every online activity, from social media to telephone, video, browsing, email and online shopping, banking, voting, gaming and more. To understand why this is difficult and important, we need to understand why cellular and satellite communications have been considered so different.

Communications satellite and cellular communications technologies have both been around for decades but viewed as entirely separate from each other. (Full disclosure: I am author of a textbook on the history of mobile satellite communications.) Due largely to America’s space race with the Soviets and the role of satellite-based communications in America’s global military footprint, satcom entered military and commercial services in the 1960s mainly to link fixed satellite dishes located thousands of miles apart.

The technology consists of terminals on the ground sending and receiving voice, data and video to and from a satellite in orbit overhead. One type of satellite technology consists of large satellites in a very high (22,000-mile-high) orbit where the satellites appear to be fixed stationary in the sky; while another technology uses smaller satellites in low (200-500 mile-high) orbits, where the satellites appear to be moving across the sky.

Satcom historically required very expensive rockets to place each satellite in orbit, enormous and expensive satellites and powerful two-way radios both on the ground and in orbit. Because satellites simultaneously transmit to and from many nations, from the outset, their radio frequencies and orbital slots have been coordinated and licensed by the United Nation’s International Telecommunications Union (ITU.)

Click here to read the full article on MSN.com.

AT&T, Verizon reach agreement for full-power C-band deployments

Posted on May 26, 2023

AT&T, Verizon reach agreement for full-power C-band deployments

AT&T, T-Mobile, UScellular and Verizon sent a letter to the FCC on Friday saying that they agreed to voluntary commitments related to air traffic safety and the deployment of C-band spectrum.

“These voluntary commitments will support full-power deployments across C-band, and are crafted to minimize the operational impact on our C-band operations,” the letter stated. Reuters first reported the filing on Friday.

The letter noted that in February 2020, the FCC adopted licensing and technical rules that serve to ensure coexistence between new C-band operations and radio altimeters operating more than 220 megahertz away in the 4.2-4.4 GHz band.

That’s worth noting because the wireless industry, including through CTIA, argued that, thanks in part to the 220 MHz guard band, C-band signals were far enough away from the altimeters to not cause harmful interference. But because older altimeters don’t “stay in their lane,” so to speak, they are susceptible to interference.

Included in their filing with the FCC are a list of C-band licensee voluntary commitments for certain periods of time and a list of 188 airports where C-band mitigation efforts are in effect. The operators pledged to continue to coordinate with the FAA on all outdoor base stations near the 188 airports and to submit to the FAA confidential coordination information at least 30 days prior to transmission. Some of the commitments last until 2028.

Verizon spent $52.9 billion, including incentive payments and clearing costs, for its C-band licenses. AT&T was the second largest bidder in the C-band auction and spent over $23 billion. But they couldn’t turn on C-band signals near airports at full power due to concerns by the Federal Aviation Administration (FAA) and aviation industry.

In a statement following Friday’s filing, Verizon said that after more than a year of close collaboration with government stakeholders, they agreed to final voluntary commitments that will allow the company to fully use its C-band spectrum for 5G by the previously agreed to deadline of July 1.

“As we’ve said from the beginning, C-band wireless operations and aviation can safely co-exist, something that’s been proven in the U.S. and around the globe. We remain very optimistic about our C-band deployment as it brings new 5G opportunities to our customers,” Verizon added.

AT&T issued a short statement, saying the filing “is the result of collaborative and productive conversations with the FAA.”

UScellular has been keeping the FCC apprised of its communications with the FAA ahead of its C-band deployment, which is later than AT&T’s and Verizon’s due to clearing out satellite incumbents and the phased approach to the spectrum.

Some consumer advocates pointed out that a lot of neighborhoods near airports are lower income and/or majority non-white communities.

“UScellular believes all Americans deserve the ability to connect to what matters most through ground-breaking technology as quickly as possible,” said Adriana Rios Welton, head of Legal and Government Affairs at UScellular, in a statement. “We can now use this valuable spectrum to connect the unconnected quickly and affordably with high-quality home and mobile broadband.”

Click here to read the full article from Fierce Wireless.

What are the differences between 4G and 5G?

Posted on December 9, 2019

What are the differences between 4G and 5G?

The wireless technology experts at Connected Real Estate Mag have outlined the key differences between the 4th generation of wireless tech and the exciting new 5th generation. The primary differences that we will continue to hear about are lower latency, capacity for more bandwidth, and the coverage ability for signal to travel further. The Connected Real Estate Mag Team also describe that 5G technology will make an impact on the commercial real estate industry. Through 5G technology, CRE owners can support smart community amenities / community IoT functionality, deliver a more desirable / sustainable living environment for the renting demographic, as well as appeal to the growing population who have a work-from-home employment arrangement. Ultimately, community connectivity is an ecosystem and 5G will be a primary contributor. 

Click here to view a Connected Real Estate Magazine article regarding this subject.

T-Mobile Makes Major 5G Commitments as Result of Sprint Acquisition

Posted on November 14, 2019

T-Mobile Makes Major 5G Commitments as Result of Sprint Acquisition

In response to the coalition of state attorneys general filing lawsuit to block the T-Mobile / Sprint merger, T-Mobile announces three major commitments to the public. While the FCC and DOJ have officially signed off on the $26.5 billion deal, state-led lawsuits continue to argue that the merging of these two major wireless carriers will create anti-competitive situation for American cellular consumers. T-Mobile’s commitments include two new affordable pre-paid offerings for customers, the “Connecting Heroes” program – offering unlimited 5G voice and text access to all first responders, and pledging $10 billion over the next 5 years to offer free internet to qualified households with students.

Click here to view a Fierce Wireless article regarding this subject.

FCC Approval of T-Mobile/Sprint Merger Official

Posted on November 14, 2019

FCC Approval of T-Mobile/Sprint Merger Official

The Federal Communications Commission Chairman, Ajit Pai, along with Commissioners Brendan Carr and Michael O’Rielly casted their votes in favor of T-Mobile’s acquisition of former wireless rival Sprint. The deal is valued at $26.5 billion and was favored by the FCC because of New T-Mobile’s commitment to bring 5G connectivity to the rural markets of the Unite States, thus shrinking the digital divide. While both the DOJ and FCC approve of this wireless merger, it is still faced with a major lawsuit intended to block the deal. The lawsuit was filed by a coalition of state attorneys general led by California and New York.

Click here to view a Connected Real Estate Magazine article regarding this subject.