Qualcomm lost its bid to get a European Union antitrust penalty thrown out after a top court largely rebuffed the technology company’s arguments in the case involving cellphone chipsets.

Qualcomm had argued that the 3G baseband chipsets singled out in the case accounted for just 0.7% of the Universal Mobile Telecommunications System (UMTS) market and so it was not possible for it to exclude rivals from the chipset market.