This lecture briefly discuss features of Long Term Evolution (LTE). The Long Term Evolution- Advanced is 4G wireless service proposed by Third generation Partnership Project (3GPP). In 2009 4G LTE started its commercial service in Scandinavia. Three important features of LTE are: femtocell deployment, OFDMA-based physical layer access and MIMO. Here also focus on how LTE provides OFDMA-based physical layer access.