Tag Archives: AST SpaceMobile

Satellites in the News

It seems like there is daily news concerning satellites used for broadband and telecommunications. Following are a sampling of some of the recent announcements.

Starlink Outage. Starlink experienced a worldwide 2.5-hour network outage on July 23 that was blamed on “key internal software services that operate the core network”. This raises questions about using satellite broadband for mission-critical uses, such as for military field operations.

T-Mobile Satellite Texting. T-Mobile has been plastering the airwaves with ads that tout the ability of T-Mobile customers to use its satellites to send text messages from remote locations. The service is available free to T-Mobile cellular and broadband customers and is available to others for $10 per month. T-Mobile enabled the service for free to everybody in the Kerr County, Texas area after the recent flooding, and the company said it would do the same for future disasters. The company says that by the end of the year, 911 texting will be available to all cellphone customers in the U.S., regardless of their subscribed carrier.

Project Kuiper. The company is now in the deployment phase of its satellite constellation that will compete with Starlink. The latest launch of 27 satellites brought the number of deployed satellites to 102. The company has scheduled 80 more launches and believes it can begin offering some commercial services by the end of this year. The first planned constellation will consist of 3,236 satellites.

Echostar. The company announced a deal with MDA Space to launch 200 satellites that will provide cellphone service from satellites by 2029. The satellite constellation would use Echostar’s existing 2 GHz AWS-4 spectrum, which they hope will justify keeping the spectrum.

AST SpaceMobile. The company has asked the FCC to launch 243 additional satellites by 2028 that would provide cellular service in direct competition with T-Mobile (and possibly Echostar). The new satellites have a large antenna array of 223 square meters.

New Regulations. The FCC voted on August 7 to accelerate the licensing process for new proposed satellite launches. This was done to keep pace with the explosive growth of the space economy. This implies even more satellites in low orbits, making the space increasingly crowded. As of July 2024, there were over 11,000 satellites in space, with over 10,000 that are active. There are worldwide plans to have as many as 100,000 satellites in orbit by 2030, the vast majority in low-orbit space.

Spectrum. The FCC is in the process of considering four new spectrum bands for satellites. This includes spectrum from 12.7-13.25 GHz, 42-42.5 GHz, 51.4-52.4 GHz, and the “W-band” that includes various ranges including 92.0-94.0 GHz, 94.1-100 GHz, 102.0-109.5 GHz, and 111.8-114.25 GHz. Altogether this is over 200,000 Megahertz of spectrum. The FCC is also considering increasing the power limits on some of the spectrum, which would greatly increase bandwidth utilization. There are some concerns about overuse of some of the proposed bands. For example, meteorologists are warning about overallocation of spectrum in the 52 GHz band.

BEAD Grants. It seems obvious with announcements from some state broadband offices that the amount of the BEAD grants allocated to satellite broadband will increase significantly. There should be some pronouncements coming of grant awards within a month or so, depending on any bottleneck at the NTIA when it tries to process BEAD grants from all states at nearly the same time.

Satellites Directly to Cellphones

AT&T and satellite company AST SpaceMobile announced a partnership to provide satellite cellular service directly from satellites to cellphones. This will provide a service that is much needed for the billions of remote users who are not in the range of a cell tower.

This is an emerging industry that is still being referred to be different acronyms. Direct-to-Device, or D2D seems to be emerging as a popular term. The FCC has been calling this Supplemental Coverage from Space (SCS). Others have been referring to this as Direct-to-Cell Phone.

AST offers a unique satellite technology that is far different than what can is used for broadband satellites like the ones being deployed by Starlink. The AST satellites have a large surface area which provides the ability to shape the signal to reach cellphones and to receive the signal back directly from a phone.

The company claims that the large satellites will be able to process up to one million simultaneous calls. The satellites will also be able to provide some broadband capability. AST is also using both low- and mid-band frequencies to increase connectivity options to and from users. Backhaul will likely be accomplished through links to AT&T ground stations.

The first AST launch will include five satellites in July or August that will be operational in about three months after launch. The satellites will be circling the globe at a high speed, and initial customers will only be able to make calls when the satellites are overhead. The company needs at least 45 satellites to provide constant connectivity, and over time, will likely keep adding satellites to improve overall capacity.

There are a lot of other players interested in pursuing the lucrative market that could include as many as 5 billion customers worldwide for folks who live, work, or travel to remove places. Here in the U.S., there are still huge parts of rural America with terrible cellular coverage.

  • Apple started the race by providing links directly from satellites to devices in 2022 when it announced that the iPhone 14 had the capability of connecting to Globalstar satellites for emergency text messages. Apple has invested more than $450 million to help Globalstar upgrade its ground stations.
  • Later in 2022, SpaceX announced a partnership with T-Mobile to also allow emergency texting. SpaceX had previously acquired Swarm in 2021 to try to develop the technology.
  • In early 2023, Qualcomm announced that its Snapdragon chip could connect directly to the Iridium satellite network to relay emergency text messages.
  • Lynk Global is working on constructing a fleet of satellites. The company has three test satellites in orbit. Lynk is collaborating with over 40 worldwide cellular carriers.
  • MediaTek has developed a satellite-compatible chipset that can connect to a Bullitt platform to use high-orbit GEO satellites from Inmarsat and Echostar.
  • Huawei and China Telecom have developed emergency calling and are working to deploy a LEO satellite constellation.
  • Deloitte predicted at the end of last year that 200 million smartphones will be sold in 2024 that contain the capability of connecting directly to a satellite.

There is a lot of demand for seamless cellular connectivity. People who travel around the world get frustrated by cellphones that only work in some countries. People who work daily in rural areas are frustrated as they move in and out of cell coverage. The ability to provide cellphone broadband could bring Internet connectivity to billions of people who are still not able to connect to an ISP. This service could also provide connectivity to remote sensors and other devices located out of reach of terrestrial networks.

This is going to be an interesting market, and it’s likely to be a huge one. It’s not unexpected to see AT&T jump into the fray to chase a huge new revenue stream.

Starlink Promising Satellite Cellular Service

Starlink recently launched a new webpage that advertises the future ability to deliver text, voice, and data to 4G cell phones via satellite.

The texting service is supposed to be available in 2024 with voice and data coming in 2025. The service will require a user to have a view of the open sky. I would also guess that a user will have to be stationary and not in a moving vehicle. The service is likely going to be aimed at people who spend a lot of time outdoors, in places out of reach of cell towers. There is no talk yet about price, but this seems like a premium service and will probably be priced accordingly.

T-Mobile’s service will be able to connect through any of its many satellites, and reports have said that speeds will be relatively slow, at perhaps only a few Mbps.

Starlink says that users of the service will be able to connect to users in cellular networks that participate in the program. The initial list of network partners includes T-Mobile in the U.S., Rogers in Canada, Optus in Australia, One NZ in New Zealand, Kodi in Japan, and SALT in Switzerland.

There is already an early version of satellite texting. Apple provides texting to 911 through a satellite connection to those using an Apple 14  or newer iPhone. The text connection to 911 is slow and takes about 15 seconds to complete a transaction. The service allows very limited follow-up texts between public safety and the person initiating the 911 call. Apple is providing this service for free today but will eventually likely charge for using it.

AT&T claims to have made the first broadband connection with an unmodified cell phone and a satellite in September. The company used AT&T’s 5G spectrum and a Samsung Galaxy S22 to connect a caller from a dead cellular zone in Maui, Hawaii to one in Madrid, Spain. This test was done in conjunction with AST SpaceMobile. The first test achieved a download speed to the phone in Maui of 10 Mbps, but AST has subsequently been able to boost the speed to 14 Mbps. AST plans to launch five BlueBird satellites in the first quarter of 2024 to support the cellular satellite effort.

It’s unlikely that any of these services are going to be competing with mainstream cell phone connectivity. The speeds will be slower, and the satellite constellations will not be equipped to process the amount of data associated with normal cellphone service. There is no need to pay extra to use a satellite connection for anybody in reach of a cell tower or a WiFi connection.

I’m not sure if most people appreciate how much of the land mass of the U.S. has little or no cell service. Practically every county I’ve worked in has large dead cellular zones. Providing even rudimentary cell coverage in remote areas is a valuable new service for the many people who work in remote places. I can picture that farmers, park rangers, and anybody who spends a lot of time in unconnected areas will want this service as soon as it is available. I envision the satellite companies and cellular companies generating good revenue while filling this needed market niche.