Apple last year leveled a $1 billion suit claiming Qualcomm withheld royalty payments in retaliation for Apple's cooperation in a South Korean antitrust investigation. The Cupertino tech giant also asserts Qualcomm flouts FRAND (fair, reasonable and nondiscriminatory) patent commitments to charge customers exorbitant royalty rates on standard-essential patents and participates in monopolistic practices, price gouging, extortion and other nefarious acts.