Terminal, radio communication method, and base station

A radio communication method for a terminal comprising:

• receiving, in a first cell that is a macro cell, information indicating a measurement object including information regarding a parameter of a discovery or measurement signal;
• performing a measurement using the discovery or measurement signal based on the information indicating the measurement object;
• and
• transmitting a result of the measurement,
• wherein when the information indicating the measurement object designates a timing that is synchronous with the first cell, the measurement is performed in a second cell that is a small cell based on the timing that is synchronous with the first cell, and
• wherein in response to a command of a measurement, which uses a synchronization signal for a cell search, being included in the information indicating the measurement object, the terminal transmits the result of the measurement using the discovery or measurement signal, and transmits the result of the measurement including a cell identifier.

A base station comprising:

• a transmitter that transmits, in a first cell that is a macro cell, information indicating a measurement object including information regarding a parameter of a discovery or measurement signal;
• a processor that controls a performing of a measurement using the discovery or measurement signal based on the information indicating the measurement object;
• and
• a receiver that receives a result of the measurement,
• wherein when the information indicating the measurement object designates a timing that is synchronous with the first cell, the processor commands a terminal to perform the measurement in a second cell that is a small cell based on the timing that is synchronous with the first cell, and
• wherein when a designation of a measurement, which uses a synchronization signal, is included in the information indicating the measurement object, the receiver receives the result of the measurement using the discovery or measurement signal, and receives the result of the measurement including a cell identifier.

A system comprising a terminal and a base station, wherein

• the terminal comprises:
• a receiver that receives, in a first cell that is a macro cell, information indicating a measurement object including information regarding a parameter of a discovery or measurement signal;
• a processor that performs a measurement using the discovery or measurement signal based on the information indicating the measurement object;
• and
• a transmitter that transmits a result of the measurement,
• wherein when the information indicating the measurement object designates a timing that is synchronous with the first cell, the processor performs the measurement in a second cell that is a small cell based on the timing that is synchronous with the first cell, and
• wherein when a designation of a measurement, which uses a synchronization signal, is included in the information indicating the measurement object, the transmitter transmits the result of the measurement using the discovery or measurement signal, and transmits the result of the measurement including a cell identifier, and
• the base station comprises:
• a transmitter that transmits, in the first cell, the information indicating the measurement object;
• a processor that controls a performing of the measurement using the discovery or measurement signal based on the information indicating the measurement object;
• and
• a receiver that receives the result of the measurement,
• wherein when the information indicating the measurement object designates the timing that is synchronous with the first cell, the processor commands the terminal to perform the measurement in the second cell based on the timing that is synchronous with the first cell.