The 2012 Mobile World Congress (MWC), which took place at the Fira de Barcelona Conference and Exhibition Centre between February 27 and March 1, addressed the evolution of the mobile communications industry. Key technological activity concentrated on addressing the strain on network capacity and the need to increase performance of PAs, batteries etc. Hot topics included carrier aggregation, Voice over LTE (VoLTE) and envelope tracking, just to name a few. Here is a full product wrap-up of what MWJ covered at the show.