AST SpaceMobile, in collaboration with AT&T, achieved a significant breakthrough earlier this year by successfully connecting an off-the-shelf Samsung Galaxy S22 smartphone to a satellite in low-Earth orbit to complete a space-based voice call. This milestone achievement highlighted the potential of satellite-based cellular communication. Now, AST SpaceMobile has announced that it is one step closer to bringing this technology to consumers.
Recently, AST SpaceMobile conducted a series of tests in Hawaii, where their engineers witnessed impressive download speeds of up to 10Mbps from their BlueWalker 3 satellite to unmodified phones on the ground. This achievement is exciting as it brings us closer to ensuring seamless connectivity for people across the United States, regardless of their location. Chris Sambar, the head of AT&T’s network, expressed his optimism, stating, “Successfully reaching double-digit download speeds during satellite-to-smartphone testing takes us one step closer to ensuring people across the United States will be able to stay connected no matter their location.”
Now, AST SpaceMobile is aiming to connect a phone to BlueWalker 3 over a 5G signal as their next objective. The prototype satellite was launched into low-Earth orbit by SpaceX’s Falcon 9 rocket in September. With a size of 693 square feet, BlueWalker 3 boasts the largest antenna among current commercial satellites. However, its size and interference concerns have posed challenges for astronomers who fear its impact on their observations of the universe.
AT&T is among several US carriers exploring the use of satellites to provide internet service to rural communities with limited connectivity options. In 2021, Verizon partnered with Amazon’s Project Kuiper satellite network for wireless access. Likewise, T-Mobile announced its collaboration with SpaceX to test devices compatible with Starlink satellites. Both AT&T and T-Mobile have indicated that existing phones should be compatible with their satellite offerings, reflecting a future where consumers can enjoy the benefits of satellite-based cellular communication using their current smartphones.
This advancement in satellite-based cellular connectivity has the potential to address the challenges faced by underserved rural communities with limited or no access to reliable internet connections. By leveraging the capabilities of satellites, these communities can overcome geographical and infrastructural barriers in accessing high-speed internet. This, in turn, opens up various opportunities for economic development, education, telemedicine, and connectivity in areas where traditional terrestrial networks may not be feasible or cost-effective.
Incorporating satellite-based communication into existing cellular networks also holds promise for emergency and disaster response scenarios. During natural disasters or other emergencies that disrupt traditional communication infrastructure, satellite-based cellular communication can provide a lifeline for affected individuals and enable effective coordination of relief efforts. The ability to connect with emergency services and loved ones during such critical situations can significantly enhance the overall resilience of communities.
While the progress made by AST SpaceMobile and other telecommunications companies in the field of satellite-based cellular communication is remarkable, challenges remain. The deployment and maintenance of satellite networks require substantial investments and extensive coordination between industry stakeholders, regulatory bodies, and governments. Furthermore, addressing concerns related to interference with astronomical observations and ensuring the sustainability of satellite constellations are important aspects to consider.
Nevertheless, the potential benefits of satellite-based cellular communication are difficult to ignore. Bringing reliable connectivity to underserved communities, enhancing emergency response capabilities, and enabling seamless communication across vast geographical areas are just a few examples of how this technology can transform lives. As AST SpaceMobile and its industry peers continue to advance the technology and overcome these challenges, we can look forward to a future where satellite-based cellular communication becomes an integral part of our connected world.
