A Bold Move for Spectrum Innovation
This November, the Defense Department will conduct its most ambitious spectrum sharing demonstration to date, aiming to address critical questions surrounding this contentious topic. Tom Rondeau, an official from the Pentagon’s FutureG office, unveiled this plan on Wednesday during a panel at the Apex Defense Conference, emphasizing the necessity for larger-scale demonstrations in spectrum sharing.
“Our past projects have lacked scale and resources, often limited to theoretical concepts or small outdoor experiments. This upcoming demonstration represents a significant leap forward, showcasing a large-scale, multi-domain approach to spectrum sharing,” Rondeau stated excitedly.
Demonstration Objectives
The primary goal of the demonstration is to validate advancements in key enablers of spectrum sharing within the 3100-3450 MHz band, a critical segment for both commercial and military communications. Rondeau elaborated that this initiative aims to prove the viability of spectrum sharing in this specific frequency range.
In December, the DoD’s Chief Information Officer and the National Spectrum Consortium issued a solicitation inviting technology prototypes from the industry for an “Advanced Dynamic Spectrum Sharing Demonstration.” Currently, the department is evaluating proposals to select the technologies that will be showcased during the demonstration.
Research and Findings
The solicitation followed a congressionally mandated study confirming that the DoD and commercial industry can share the mid-band spectrum, which includes frequencies from 3.1 to 3.45 GHz. This finding aligns with the Biden administration’s 2023 National Spectrum Strategy, which called for further research on spectrum-sharing operations. The results from the upcoming demonstration will contribute valuable insights to this ongoing study.
Balancing Security and Commercial Needs
Despite the push for spectrum sharing, Pentagon officials are cautious. They argue that parts of the bandwidth are vital for national security missions, including missile defense and satellite communications. At the same time, commercial entities seek access to the same bandwidth for high-speed wireless services serving both civilian and military users.
Rondeau noted the challenges associated with the lower 3 GHz band: “This range is particularly complex for the DoD, with numerous systems operating within it. The big question is how we can share this spectrum successfully with the commercial sector while maintaining national security.”
Concerns Over Spectrum Auctions
Recent discussions have revealed military leaders’ fears that auctioning parts of the spectrum to the commercial sector could jeopardize critical defense initiatives like President Trump’s Golden Dome missile defense system. Gen. Gregory Guillot, chief of U.S. Northern Command, voiced his concerns, stating, “Almost all systems we utilize for homeland defense rely on that portion of the spectrum being considered for sale or sharing.”
As the November demonstration approaches, the tension between safeguarding national security and accommodating industry needs will remain a pivotal topic for discussion within the Pentagon and beyond.
