Terminal and radio communication method
A terminal includes a receiving section configured to receive downlink control information that schedules or triggers a specific signal, and a control section configured to use different quasi-co-location (QCL) parameters for the specific signal between a case where the specific signal is started within a first period for decoding the downlink control information and a case where the specific signal is started within a second period after the first period.
1. A terminal comprising:
a receiving section that receives downlink control information indicating reception of a downlink signal; and
a control section that determines one quasi co-location (QCL) assumption of a first QCL assumption and a second QCL assumption, wherein the one QCL assumption is applied to the downlink signal, the first QCL assumption is applied to the downlink signal in a first case that the downlink signal starts in a first period from the receiving of the downlink control information to elapse of a specific time, the second QCL assumption is applied to the downlink signal in a second case that the downlink signal starts in a second period after the first period, and the first QCL assumption is different from the second QCL assumption.
2. The terminal according to claim 1 , wherein the second QCL assumption is a transmission configuration indication (TCI) state indicated by the downlink control information.
3. The terminal according to claim 1 , wherein the first QCL assumption is a QCL assumption of a specific control resource set, and the specific control resource set corresponds to a lowest control resource set ID in a monitored latest slot and is associated with a monitored search space set.
4. The terminal according to claim 1 , wherein the second QCL assumption is a transmission configuration indication (TCI) state or a QCL assumption applied to the downlink control information.
5. The terminal according to claim 1 , wherein the downlink signal is a physical downlink shared channel.
6. The terminal according to claim 1 , wherein the first QCL assumption is a QCL assumption of another downlink signal transmitted in a same symbol as the downlink signal.
7. The terminal according to claim 3 , wherein the downlink signal is a channel state information reference signal (CSI-RS).
8. The terminal according to claim 1 , wherein the control section reports capability information indicating the specific time.
9. A radio communication method for a terminal comprising:
receiving downlink control information indicating reception of a downlink signal; and
determining one quasi co-location (QCL) assumption of a first QCL assumption and a second QCL assumption, wherein the one QCL assumption is applied to the downlink signal, the first QCL assumption is applied to the downlink signal in a first case that the downlink signal starts in a first period from the receiving of the downlink control information to elapse of a specific time, the second QCL assumption is applied to the downlink signal in a second case that the downlink signal starts in a second period after the first period, and the first QCL assumption is different from the second QCL assumption.
10. A base station comprising:
a receiving section that receives capability information indicating a specific time; and
a control section that determines one quasi co-location (QCL) assumption of a first QCL assumption and a second QCL assumption, wherein the one QCL assumption is applied to the downlink signal, the first QCL assumption is applied to the downlink signal in a first case that the downlink signal starts in a first period from the receiving of the downlink control information to elapse of the specific time, the second QCL assumption is applied to the downlink signal in a second case that the downlink signal starts in a second period after the first period, and the first QCL assumption is different from the second QCL assumption.
11. A system comprising a terminal and a base station, wherein
the terminal comprises:
a receiving section that receives downlink control information indicating reception of a downlink signal; and
a control section that determines one quasi co-location (QCL) assumption of a first QCL assumption and a second QCL assumption, wherein the one QCL assumption is applied to the downlink signal, the first QCL assumption is applied to the downlink signal in a first case that the downlink signal starts in a first period from the receiving of the downlink control information to elapse of a specific time, the second QCL assumption is applied to the downlink signal in a second case that the downlink signal starts in a second period after the first period, and the first QCL assumption is different from the second QCL assumption, and
the base station transmits the downlink control information.
12. The terminal according to claim 2 , wherein the first QCL assumption is a QCL assumption of a specific control resource set, and the specific control resource set corresponds to a lowest control resource set ID in a monitored latest slot and is associated with a monitored search space set.
13. The terminal according to claim 2 , wherein the downlink signal is a physical downlink shared channel.
14. The terminal according to claim 3 , wherein the downlink signal is a physical downlink shared channel.
15. The terminal according to claim 4 , wherein the downlink signal is a physical downlink shared channel.
16. The terminal according to claim 2 , wherein the first QCL assumption is a QCL assumption of another downlink signal transmitted in a same symbol as the downlink signal.
17. The terminal according to claim 4 , wherein the downlink signal is a channel state information reference signal (CSI-RS).
18. The terminal according to claim 5 , wherein the downlink signal is a channel state information reference signal (CSI-RS).
19. The terminal according to claim 6 , wherein the downlink signal is a channel state information reference signal (CSI-RS).
20. The terminal according to claim 2 , wherein the control section reports capability information indicating the specific time.