The W-CDMA and UMTS patents at issue in the action relate to "reliability, capacity, efficiency, compatibility, and functioning of mobile devices" in W-CDMA and UMTS networks, Samsung said in its before the U.S. District Court for the Northern District of California on Wednesday.

Apple filed a against Samsung in February seeking an injunction and damages on sales of the Samsung Galaxy Nexus and other products. Samsung denied infringing the patents cited in Apple's complaint in its counterclaim.

In April 2011 Apple sued Samsung before the same court for a previous round of products that allegedly infringed its patents relating to the iPhone and iPad devices. The two companies earlier this week to attend a settlement conference on this lawsuit within 90 days.

Samsung charged on Wednesday that Apple has infringed its patents in a number of its products. Apple's iPhones, all iPads, all iPods, all Apple computers, Apple TV, iCloud, and iTunes are said to be in infringement, for example, of a 2009 patent titled "Multimedia Synchronization Method and Device."