The issue focused on the way carriers applied earlier court rulings to allow them to apply the Wireless Carrier Responsibility Rule to low-band 700 MHz spectrum as part of their existing network operations, rather than changing it. Because carriers already sold their own leased network assets and there is a widespread uncertainty over who owns or controls those assets, including on the 700 MHz spectrum front, the issue has been viewed by the court as akin to a mathematical problem with no right answer and, if allowed to stand, could result in carriers being forced