4G也称为Beyond3G(B3G) ,是多种无线技术的综合系统。它融

4G also called Beyond3G (B3G), is an integrated system of multiple wireless technologies. It combines the enhanced existing 3G technology, network technology and set of 3G wireless LAN system as a whole. 4G contains many currently in use and that will be used in future wireless technologies. We mentioned here means not only a radio technology using the next generation mobile communication technology and the new band, further comprising a current mobile communications (2G and 3G), IEEE802.11 wireless LAN and Bluetooth short-range communication technology, in addition also figures radio and television into the field of vision. 4G in addition to continue to rely on a number of new technologies and standards that have been developed 3G standards organizations (such as OFDM, MIMO, IP core network, develop business structure and IPv6, etc.) and extend them outside, the planning must also meet the overall system architecture can be made smooth 3G Evolution to 4G is required.

4G, also known as Beyond3G (B3G), is a comprehensive system of wireless technologies. It integrates the existing 3G enhanced technology, set 3G network technology and wireless LAN system as a whole. 4G contains many wireless technologies that are currently in use and will be used in the future. The wireless technology referred to here refers not only to the use of new frequency bands and new technologies of the next generation of mobile communications, but also the current mobile communications (2G and 3G), IEEE802.11 and other wireless LAN and Bluetooth and other close-range communications technology, in addition to digital radio and television into the field of vision. In addition to continuing to rely on and extend the many new technologies and standards that 3G standardorganizations have developed (e.g. OFDM, MIMO, IP core network, development business architecture, iPv6, etc.), 4G must also meet the requirement that the overall system architecture can evolve smoothly from 3G to 4G.

4G, also known as beyond 3G (B3G), is a comprehensive system of various wireless technologies. It integrates the existing 3G enhanced technology and integrates 3G network technology and wireless LAN system. 4G includes many wireless technologies that are currently in use and will be used in the future. The wireless technology mentioned here not only refers to the new generation of mobile communication using the new frequency band and new technology, but also includes the current mobile communication (2G and 3G), wireless LAN such as IEEE802.11 and short-range communication technology such as Bluetooth. In addition, it also brings digital radio and television into the field of vision. In addition to continuing to rely on a number of new technologies and standards developed by 3G standards organizations (such as OFDM, MIMO, IP core network, development business architecture and IPv6) and extending them, the planning of 4G must also meet the requirement that the overall system architecture can smoothly evolve from 3G to 4G.<br>