User terminal, radio base station and radio communication method

A radio base station that communicates in a narrow band, which is narrower than a minimum bandwidth for use supported in an existing LTE (Long Term Evolution) system, the radio base station comprising:

• a transmitter that transmits downlink control information;
• and
• a processor that controls scheduling of at least one of a downlink data signal and an uplink data signal,
• wherein the downlink control information includes command information that indicates a length of a time period of a scheduling unit and is used to control the length of the time period of the scheduling unit for at least one of the downlink data signal and the uplink data signal that is using the narrow band, and the length is controlled as six or less, multiple subframes indicated by the command information.

A radio communication method in a terminal for communicating in a narrow band, which is narrower than a minimum bandwidth for use supported in an existing LTE (Long Term Evolution) system, the radio communication method comprising:

• receiving downlink control information;
• and
• controlling a length of a time period of a scheduling unit for at least one of a downlink data signal and an uplink data signal that is using the narrow band based on command information that is included in the downlink control information and indicates the length of the time period of the scheduling unit,
• wherein the terminal controls the length as six or less, multiple subframes indicated by the command information.