Aiming at service launch in 2020, NTT DOCOMO is conducting research and development on 5G, the fifth-generation mobile communications system. In the information society of 2020s, the traffic volume of mobile communications is expected to be over 1000-times than that of 2010. 5G aims to realize a high capacity network which is able to support such increase in traffic with low cost and reduced power consumption. Furthermore, NTT DOCOMO is conducting research and development to enable a wide range of capabilities such as super high data rate communications of over 10Gbps, lower latency, and simultaneous connection of a large number of terminals in order to support the future spread of M2M communications and internet of things (IoT), etc.