An arbitration panel has ordered Qualcomm Inc. to pay $815 million plus attorney fees and interest to resolve a dispute over a patent license agreement.

Details of the arbitration are being kept private amid government, class action and licensee lawsuits over Qualcomm licensing practices. According to a statement issued by Qualcomm, the arbitration decided only the narrow issue of whether BlackBerry was entitled to refunds of royalties on phone and chip modem sales that exceeded per-unit caps. The refunds covered sales from 2010 through 2015.

Conditional rebates are one of the licensing strategies that has landed Qualcomm in hot water with overseas antitrust regulators, according to a class action complaint filed in January in the Northern District of California. Qualcomm has offered rebates to handset makers that use its chips exclusively instead of negotiating fair, reasonable and nondiscriminatory royalty rates on its standard-essential patents, the complaint alleges.