Mid-band frequencies are often described as the Goldilocks range of the spectrum, where 5G signals fly fast and far.
The airwaves on the auction block include frequencies in what's called the mid-band range, allowing 5G signals to travel fast and far.
Many products are now sold using "package auctions" for a more efficient allocation of goods.
The winning economists designed auctions that allow for multiple bids over a period of time.
The tech giant sells three times more phones than Apple in China. It has developed into a smartphone superpower in the last five years.
Critics say this isn't so much about security as it is about eliminating prospective competition.
A federal judge has ruled that Qualcomm unlawfully squeezed out rivals in the cellphone chip market and charged excessive royalties to cellphone manufacturers such as Apple.
But it will require big spending on new tech in areas with small customer bases.
The U.S.-China trade relationship is getting even more tense.
But ZTE will be hit with a $1 billion penalty.