Internet and Mobile have become the basic need for everyone now a days. If internet goes down around the globe for few Days or even for few hours, it will give a huge impact on IT market and people's life. We are addicted of it. So the questions come is, How does internet reaches us? Answer is: It comes using LAN, WAN, Wireless etc. LAN or WAN is wired network. The success story of LAN & WAN is that it can give you speed upto 1000 Mega bits/Sec (as per: 802.3z). But what's about Wireless network?? Till now it can give upto 21 Megabits/Sec only (as per HSPA). So, To increase the speed of wireless network, It is redesigned to Evolved the previous architecture. The committee formed by 3GPP came up with a new solution with the name of LTE (Long Term Evolution). So, What was the expectations for LTE? These are the minimum expectation from LTE 1. Dowlink speed should be 100 Mbps in 20Mhz Bandwidth with two antennas 2. Increased "cell edge bitrate". So, the