W-CDMA is used to deliver 3G in European countries, and mobile phone manufacturers and chipset producers have complained to the European Commission that Qualcomm is using its 3G patents in an unfair way to restrict trade.
Complaints were made by Ericsson, Nokia, Texas Instruments, Broadcom, NEC and Panasonic.
Qualcomm president, Steve Altman, said, "We are pleased that the commission has decided to give the case priority status to move it forward swiftly to resolution.
"We welcome the continuation of our dialogue with the Commission in order to demonstrate that the complaints are without merit, and are motivated by commercial considerations of the entrenched complainants who are trying to stifle the competition that Qualcomm brings to the market."
Qualcomm has previously taken legal action Nokia and others over the use of its patented 2G and 2.5G mobile technology.