As of Q1 2012, forty-nine mobile network operators worldwide have launched fourth-generation (4G) Long Term Evolution (LTE) networks commercially. As a result of early investment in LTE infrastructure and device R&D, MNOs and device vendors are pushing hard to increase LTE enabled device among users, both in the public and enterprise sector. The year 2011 has already witnessed over 8.2 Million LTE enabled device shipments which account for revenues of over 2 Billion USD.