The U.S. Department of Justice in a filing on Thursday preemptively requested a hearing on potential remedies should Qualcomm be found liable in an antitrust case leveled by the Federal Trade Commission.

In its statement of interest filing, lodged with the U.S. District Court for the Northern District of California, the DOJ's antitrust division asked Judge Lucy Koh to hold a hearing on punishments to be doled out to Qualcomm in the case that the chipmaker's licensing practices are found to violate antitrust laws, reports Reuters.

According to the filing, remedies "should work as little injury as possible to other public policies," wording that suggests concern over potential interference with key American markets. The DOJ goes on to name 5G networking as a sticking point.

Qualcomm is a leader in the development and manufacture of baseband chips, or cellular modems, used in smartphones around the world and is currently ramping up 5G module production as the world shifts to faster wireless technology. Carriers are already switching on the speedy tech in certain markets, though wide access is not anticipated until 2020 or 2021.

If Koh finds in favor of the FTC, too broad a punishment could hamper Qualcomm — and America's — standing in the race to 5G.

"[T]here is a plausible prospect that an overly broad remedy in this case could reduce competition and innovation in markets for 5G technology and downstream applications that rely on that technology," the Justice Department said. "Such an outcome could exceed the appropriate scope of an equitable antitrust remedy. Moreover, it has the distinct potential to harm rather than help competition."

The FTC first leveled antitrust claims against Qualcomm in 2017, alleging the firm sought to maintain a monopoly over the wireless modem market through onerous patent licensing practices. A subsequent trial kicked off in January and included testimony from industry heavyweights including Apple COO Jeff Williams.

Koh has yet to render a judgment on the proceedings that ended Jan. 30. In the interim, Qualcomm and the FTC continue to negotiate a potential settlement.

Alongside with the FTC complaint, Apple filed its own case against Qualcomm on nearly identical allegations. That lawsuit morphed into a legal battle that raged in courts around the world until a surprise settlement was reached in April.

Terms of the agreement involved a one-time Apple payment to Qualcomm (now known to be worth at least $4.5 billion), a multiyear chipset supply agreement and a six-year licensing agreement with a two-year option to extend.