This generation is also called Fourt Generation (4G). 4G is a cellular telephone system that offers a new approach and infrastructure solutions that integrate existing wireless technologies including wireless broadband (WiBro), 802.16e, CDMA, wireless LAN, Bluetooth, dlll. 4G systems based on the heterogeneity of IP networks that allow users to use a variety of systems anytime and anywhere. 4G also provides users with high speed, high volume, good quality, global reach, and flexibility utnuk explore the various different technologies. Finally, 4G provides fast data transmission services to accommodate various multimedia applications such as video conferencing, online gaming, etc..