Patent ID: 11943169
Assignee: SHARP KABUSHIKI KAISHA
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 2:
3. A base station apparatus comprising:
an upper layer processing circuitry configured to transmit a configuration list related to a channel state information (CSI) report and information related to a trigger of the CSI report;
a transmission circuitry configured to transmit, via a physical downlink control channel (PDCCH), downlink control information (DCI) including a CSI request field; and
a reception circuitry configured to receive the CSI report based on the CSI request field, wherein
the reception circuitry is configured to receive a CSI report of an activated downlink bandwidth part (BWP) related to the CSI request field in a case that the CSI report is triggered and the downlink BWP is active,
the reception circuitry is further configured not to receive a CSI report of a deactivated downlink BWP, in a case that the CSI report is triggered and the downlink BWP is inactive,
the configuration list related to the CSI report indicates a plurality of CSI trigger states,
the information related to the trigger of the CSI report indicates a size NTS of the CSI request field in the DCI,
each of code points of the CSI request field is mapped to one of the plurality of CSI trigger states, one of the plurality of CSI trigger states is selected by a terminal apparatus in a case that a number of CSI trigger states in the plurality of CSI trigger states is greater than 2{circumflex over ( )}(NTS)−1,
the CSI request field directly indicates the selected one of the plurality of CSI trigger states and a Quasi-Co-Location (QCL) assumption in a case that the number of CSI trigger states in the plurality of the CSI trigger states is equal to or less than 2{circumflex over ( )}(NTS)−1, and
one of the plurality of CSI trigger states corresponding to “1” in the indication is mapped to a code point of the CSI request field in a case of indication of the selected one of the plurality of CSI trigger states.