Terminal, radio communication method, and base station
A terminal according to one aspect of the present disclosure includes: a receiving section that receives a medium access control-control element (MAC CE) related to a parameter for a sounding reference signal (SRS) resource set or an SRS resource; and a control section that controls SRS transmission, based on the parameter. According to one aspect of the present disclosure, it is possible to flexibly control an SRS parameter.
1 . A terminal comprising:
a processor that controls transmission of a report on capability information indicating a capability of antenna switching for more than four reception antennas; and
a receiver that receives a configuration that indicates values for a slot offset of an aperiodic sounding reference signal (SRS) resource set having a usage of the antenna switching and depends on the capability information, and receives a downlink control information indicating one of the values,
wherein the processor determines, based on the configuration and the downlink control information, a slot of transmission of an SRS in the aperiodic SRS resource set.
2 . The terminal according to claim 1 , wherein the capability information indicates at least one of:
a capability of antenna switching for one transmission antenna and six reception antennas;
a capability of antenna switching for two transmission antennas and six reception antennas;
a capability of antenna switching for four transmission antennas and six reception antennas;
a capability of antenna switching for one transmission antenna and eight reception antennas;
a capability of antenna switching for two transmission antennas and eight reception antennas; and
a capability of antenna switching for four transmission antennas and eight reception antennas.
3 . The terminal according to claim 1 , wherein the capability information indicates a maximum number of multiple SRS resource sets that is configured for the terminal having the capability of antenna switching for more than four reception antenna, and the maximum number is greater than another maximum number of SRS resource sets that is configured for another terminal that does not have the capability of antenna switching for more than four reception antennas.
4 . A radio communication method for a terminal, comprising:
controlling transmission of a report on capability information indicating a capability of antenna switching for more than four reception antennas;
receiving a configuration that indicates values for a slot offset of an aperiodic sounding reference signal (SRS) resource set having a usage of the antenna switching and depends on the capability information;
receiving a downlink control information indicating one of the values; and
determining, based on the configuration and the downlink control information, a slot of transmission of an SRS in the aperiodic SRS resource set.
5 . A base station comprising:
a processor that controls reception of a report on capability information indicating a capability of antenna switching for more than four reception antennas; and
a transmitter that transmits a configuration that indicates values for a slot offset of an aperiodic sounding reference signal (SRS) resource set having a usage of the antenna switching and depends on the capability information, and transmits a downlink control information indicating one of the values,
wherein the processor determines, based on the configuration and the downlink control information, a slot of reception of an SRS in the aperiodic SRS resource set.
6 . A system comprising a terminal and a base station, wherein
the terminal comprising:
a processor that controls transmission of a report on capability information indicating a capability of antenna switching for more than four reception antennas; and
a receiver that receives a configuration that indicates values for a slot offset of an aperiodic sounding reference signal (SRS) resource set having a usage of the antenna switching and depends on the capability information, and receives a downlink control information indicating one of the values,
wherein the processor determines, based on the configuration and the downlink control information, a slot of transmission of an SRS in the aperiodic SRS resource set, and
the base station transmits the configuration and transmits the downlink control information.