Feel free to access the entire article, however, below is the core of what we need to understand regarding the consortium:
"Rockstar Consortium Inc., originally namedRockstar Bidco,[1] is a consortium formed to negotiate licensing for patents acquired from the bankrupt multinational telecommunications and data networking equipment manufacturer Nortel.[2][3] Members of the consortium are Apple, Inc., BlackBerry,Ericsson, Microsoft, and Sony.[4] Rockstar is apatent holding non-practicing entity (NPE) and submitted the winning US$4.5 billion bid for the Nortel patents at a week-long auction held in New York in June 2011.[5]"