This document discusses LTE technology and a recent report from OpenSignal on the state of LTE. It notes that LTE uses wider channel bandwidths of 1.4 to 20 MHz compared to 5 MHz for earlier standards. It also discusses TD-LTE and FD-LTE along with benefits of LTE like lower cost and smaller cell sizes using IP. The document references 3G and includes repeated mentions of "ARASH POURDAMGHANI" and locations in Iran.