Huawei has filed an anti-trust complaint with the European Commission against US-based InterDigital in which it urges the Commission to intervene, saying the U.S.-based firm is demanding "exploitative" fees for use of its 3G mobile phone patents. Huawei claims that InterDigital is seeking to leverage its declared 3G standard essential patents to force Huawei to conclude a "discriminatory, unfair and exploitative license."

"InterDigital's demand manifestly breaches the policies of the European Telecommunications Standards Institute calling for fair, reasonable, and non-discriminatory (FRAND) licensing practices by technology patent holders, and Article 102 of the Treaty on the Functioning of the European Commission," Huawei said in a statement.

Huawei has been previously negotiating to reach an agreement with InterDigital on licensing fees for mobile devices.

InterDigital holds more than 19,500 patents and patent applications.