Research on Key Technology of TD-LTE Standard 4G Mobile CommunicationsNetwork

摘要

This paper first introduces the existing limitations of 3G network communication. It shows 4G is the inevitabletrend of communication future development. 4G is a technology products which set 3G and WLAN in one, It has highertransmission speeds, greater capacity, better stability, may well make up for the deficiencies in 3G. The article discussesand analyzes key technologies of 4G such as OFDM, software radio, smart antennas, MIMO and so on. It points out theimprovements of 4G in technology and analyzes changes in 4G network architecture. Final it concludes the improvementsof 4G network compared with 3G. As the references of the new technology and the effectiveness improvement, this willbring 4G more broad application areas and market.