Terminal, radio communication method, and base station

A radio communication method for a terminal, comprising:

• receiving a list of a plurality of serving cells, and receiving configuration information of a plurality of transmission configuration indication (TCI) states applicable to a plurality of types of channels;
• and
• determining a reference signal (RS) of a first quasi co-location (QCL) type and an RS of a second QCL type to be applied to the plurality of serving cells, based on the configuration information and a restriction related to the RS of the first QCL type and the RS of the second QCL type for a demodulation reference signal (DMRS),
• wherein an RS in a serving cell for which a TCI state is applied by the terminal is configured as the RS of the first QCL type, and an RS in a serving cell other than the serving cell for which the TCI state is applied by the terminal is located as the RS of the second QCL type.

A base station comprising:

• a transmitter that transmits a list of a plurality of serving cells, and transmits configuration information of a plurality of transmission configuration indication (TCI) states applicable to a plurality of types of channels;
• and
• a processor that determines a reference signal (RS) of a first quasi co-location (QCL) type and an RS of a second QCL type to be applied to the plurality of serving cells, based on the configuration information and a restriction related to the RS of the first QCL type and the RS of the second QCL type for a demodulation reference signal (DMRS),
• wherein an RS in a serving cell for which a TCI state is applied by the terminal is configured as the RS of the first QCL type, and an RS in a serving cell other than the serving cell for which the TCI state is applied by the terminal is located as the RS of the second QCL type.

A system comprising a terminal and a base station, wherein

• the terminal comprises:
• a receiver that receives a list of a plurality of serving cells, and receives configuration information of a plurality of transmission configuration indication (TCI) states applicable to a plurality of types of channels;
• and
• a processor that determines a reference signal (RS) of a first quasi co-location (QCL) type and an RS of a second QCL type to be applied to the plurality of serving cells, based on the configuration information and a restriction related to the RS of the first QCL type and the RS of the second QCL type for a demodulation reference signal (DMRS), and
• the base station comprises:
• a transmitter that transmits the list, and transmits the configuration information,
• wherein an RS in a serving cell for which a TCI state is applied by the terminal is configured as the RS of the first QCL type, and an RS in a serving cell other than the serving cell for which the TCI state is applied by the terminal is located as the RS of the second QCL type.