User terminal and radio communication method

A radio communication method for a terminal, comprising:

• reporting capability information indicating that a half-duplex operation is applied among multiple cells;
• receiving information regarding a slot format of a first cell;
• when the half-duplex operation is applied, expecting, in a symbol where transmission or reception on the first cell is indicated by the information regarding the slot format, that transmission or reception in a direction that is different from the first cell is not indicated to a second cell, or controlling, in the symbol, not to perform transmission or reception on the first cell;
• and
• when transmission or reception in the symbol is configured by higher layer signaling for the first cell and transmission or reception in a direction that is different from the first cell is indicated, by downlink control information, to the second cell in the symbol, controlling not to perform transmission or reception on the first cell.

A system comprising a terminal and a base station, wherein

• the terminal comprises:
• a transmitter that reports capability information indicating that a half-duplex operation is applied among multiple cells;
• a receiver that receives information regarding a slot format of a first cell;
• and
• a processor that, when the half-duplex operation is applied, expects, in a symbol where transmission or reception on the first cell is indicated by the information regarding the slot format, that transmission or reception in a direction that is different from the first cell is not indicated to a second cell, or controls, in the symbol, not to perform transmission or reception on the first cell,
• wherein when transmission or reception in the symbol is configured by higher layer signaling for the first cell and transmission or reception in a direction that is different from the first cell is indicated, by downlink control information, to the second cell in the symbol, the processor controls not to perform transmission or reception on the first cell, and
• the base station comprises:
• a receiver that receives the capability information;
• and
• a transmitter that transmits the information regarding the slot format.