US 11,943,169 B2
Base station apparatus, terminal apparatus, communication method, and integrated circuit
Kazunari Yokomakura, Sakai (JP); Shohei Yamada, Sakai (JP); Hidekazu Tsuboi, Sakai (JP); and Hiroki Takahashi, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Appl. No. 16/960,793
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
PCT Filed Jan. 11, 2019, PCT No. PCT/JP2019/000754
§ 371(c)(1), (2) Date Jul. 8, 2020,
PCT Pub. No. WO2019/139139, PCT Pub. Date Jul. 18, 2019.
Claims priority of application No. 2018-002524 (JP), filed on Jan. 11, 2018.
Prior Publication US 2021/0067304 A1, Mar. 4, 2021
Int. Cl. H04L 5/00 (2006.01); H04W 72/23 (2023.01)
CPC H04L 5/0057 (2013.01) [H04W 72/23 (2023.01)] 3 Claims
OG exemplary drawing
 
2. A communication method used for a terminal apparatus, the communication method comprising:
receiving a configuration list related to a channel state information (CSI) report and information related to a trigger of the CSI report;
receiving, via a physical downlink control channel (PDCCH), downlink control information (DCI) including a CSI request field; and
transmitting the CSI report based on the CSI request field, wherein
a CSI report of an activated downlink bandwidth part (BWP) related to the CSI request field is transmitted in a case that the CSI report is triggered and the downlink BWP is active,
a CSI report of a deactivated downlink BWP is not transmitted 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 CIS 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 medium access control (MAC) processing circuitry of the terminal apparatus in a case that a number of CSI trigger states in the plurality of CSI trigger states is greater than 2 (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 (NTS)−1,
the MAC processing circuitry is configured to give an indication of the selected one of the plurality of CSI trigger states, 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.