Terminal, radio communication method, and base station
A terminal according to one aspect of the present disclosure includes a control section that, if scheduling offset between reception of a downlink control channel for communication of downlink control information for scheduling an aperiodic channel state information-reference signal (A-CSI-RS) and reception of the A-CSI-RS is less than a threshold determined on the basis of a reported period value for beam switch, and there is a different downlink signal in the same symbol as the A-CSI-RS, and the A-CSI-RS and the different downlink signal are related to the same control resource set (CORESET) pool index, gives priority to quasi-co-location (QCL) for the different downlink signal; and a receiving section that receives the A-CSI-RS. According to one aspect of the present disclosure, collision between a plurality of channels/signals can be handled appropriately.
1 . A terminal comprising:
a transmitter that transmits capability information indicating support of simultaneous reception of signals of different spatial reception parameters; and
a processor that:
when;
the transmitter transmits the capability information, a first physical downlink control channel (PDCCH) that schedules a first physical downlink shared channel (PDSCH) and a second PDSCH, the first PDSCH, and the second PDSCH overlap in at least one symbol, and
a spatial reception parameter of a demodulation reference signal (DMRS) for the first PDCCH differs from both of a spatial reception parameter of a first transmission configuration indication (TCI) state for the first PDSCH and a QCL type for a spatial reception parameter of a second TCI state for the second PDSCH,
controls to prioritize reception of the single first PDCCH; and
when:
the transmitter transmits the capability information,
a second PDCCH and a third PDSCH overlap in at least one symbol,
a spatial reception parameter of a DMRS for the third PDSCH differs from a spatial reception parameter of a DMRS for the second PDCCH, and
the second PDCCH and the third PDSCH are associated with a same value of a control resource set (CORESET) pool index,
controls to prioritize reception of the second PDCCH.
2 . The terminal according to claim 1 , wherein when:
the first PDCCH, the first PDSCH, and the second PDSCH overlap in the at least one symbol, and
the spatial reception parameter of the DMRS for the first PDCCH is same as the spatial reception parameter of the first TCI state and differs from the spatial reception parameter of the second TCI state,
the processor controls to receive the first PDCCH, the first PDSCH, and the second PDSCH.
3 . The terminal according to claim 2 , wherein when:
the transmitter transmits the capability information
the first PDCCH, the first PDSCH, and the second PDSCH overlap in the at least one symbol, and
the spatial reception parameter of the DMRS for the first PDCCH is same as the spatial reception parameter of the first TCI state and differs from the spatial reception parameter of the second TCI state,
the processor controls to receive the first PDCCH, the first PDSCH, and the second PDSCH.
4 . A radio communication method for a terminal, comprising:
transmitting capability information indicating support of simultaneous reception of signals of different spatial reception parameters;
when:
the capability information is transmitted,
a first physical downlink control channel (PDCCH) that schedules a first physical downlink shared channel (PDSCH) and a second PDSCH, the first PDSCH, and the second PDSCH overlap in at least one symbol, and
a spatial reception parameter of a demodulation reference signal (DMRS) for the first PDCCH differs from both of a spatial reception parameter of a first transmission configuration indication (TCI) state for the first PDSCH and a spatial reception parameter of a second TCI state for the second PDSCH,
controlling to prioritize reception of the first PDCCH; and
when:
the capability information is transmitted,
a second PDCCH and a third PDSCH overlap in at least one symbol,
a spatial reception parameter of a DMRS for the third PDSCH differs from a spatial reception parameter of a DMRS for the second PDCCH, and
the second PDCCH and the third PDSCH are associated with a same value of a control resource set (CORESET) pool index,
controlling to prioritize reception of the second PDCCH.
5 . A base station comprising:
a receiver that receives capability information indicating support of simultaneous reception of signals of different spatial reception parameters; and
a processor that:
when:
the receiver receives the capability information,
a first physical downlink control channel (PDCCH) that schedules a first physical downlink shared channel (PDSCH) and a second PDSCH, the first PDSCH, and the second PDSCH overlap in at least one symbol, and
a spatial reception parameter of a demodulation reference signal (DMRS) for the first PDCCH differs from both of a spatial reception parameter of a first transmission configuration indication (TCI) state for the first PDSCH and a spatial reception parameter of a second TCI state for the second PDSCH,
controls a terminal to prioritize reception of the first PDCCH; and
when:
the receiver receives the capability information,
a second PDCCH and a third PDSCH overlap in at least one symbol,
a spatial reception parameter of a DMRS for the third PDSCH differs from a spatial reception parameter of a DMRS for the second PDCCH, and
the second PDCCH and the third PDSCH are associated with a same value of a control resource set (CORESET) pool index,
controls a terminal to prioritize reception of the second PDCCH.
6 . A system comprising a terminal and a base station, wherein
the terminal comprises:
a transmitter that transmits capability information indicating support of simultaneous reception of signals of different spatial reception parameters; and
a processor that:
when:
the transmitter transmits the capability information,
a first physical downlink control channel (PDCCH) that schedules a first physical downlink shared channel (PDSCH) and a second PDSCH, the first PDSCH, and the second PDSCH overlap in at least one symbol, and
a spatial reception parameter of a demodulation reference signal (DMRS) for the first PDCCH differs from both of a spatial reception parameter of a first transmission configuration indication (TCI) state for the first PDSCH and a spatial reception parameter of a second TCI state for the second PDSCH,
controls to prioritize reception of the first PDCCH; and
when:
the transmitter transmits the capability information,
a second PDCCH and a third PDSCH overlap in at least one symbol,
a spatial reception parameter of a DMRS for the third PDSCH differs from a spatial reception parameter of a DMRS for the second PDCCH, and
the second PDCCH and the third PDSCH are associated with a same value of a control resource set (CORESET) pool index,
controls to prioritize reception of the second PDCCH; and
the base station comprises:
a receiver that receives the capability information.