Re: It it to do with the selling price I bet
They have already sued them in East Texas:
http://www.ericsson.com/news/1897919
"On February 26, Ericsson (NASDAQ: ERIC) filed two complaints with the International Trade Commission (ITC) and seven complaints in the United States District Court for the Eastern District of Texas against Apple asserting 41 patents covering many aspects of Apple's iPhones and iPads. The patents include standard essential patents related to the 2G and 4G/LTE standards as well as other patents that are critical to features and functionality of Apple devices such as the design of semiconductor components, user interface software, location services and applications, as well as the iOS operating system. Ericsson seeks exclusion orders in the ITC proceedings and damages and injunctions in the District Court actions."