6. A radio communication method comprising:monitoring a downlink control channel which is allocated in units of subframes and receiving downlink control information; and
controlling at least one of data transmission and data reception in units of transmission time intervals (TTIs), based on the downlink control information,
wherein at least one of transmission and reception is controlled assuming that at least one of a subframe duration and a TTI duration is variable, and
wherein the method further includes controlling to perform a receiving process assuming that at least one of:data that is received in a time period of an uplink control channel where transmission is skipped is transmitted with lower transmission power than data that is received in other time periods, and
data that is received in one or more symbols from an end of a TTI is transmitted with lower transmission power than data that is received in other time periods.