Patent ID: 11910384
Assignee: SHARP KABUSHIKI KAISHA
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 2:
3. A communication method used for a terminal apparatus, the communication method comprising:
monitoring a Physical Downlink Control CHannel (PDCCH) with a Downlink Control Information (DCI) format on an active downlink BandWidth Part (BWP) in a serving cell, the DCI format being used for scheduling a Physical Downlink Shared CHannel (PDSCH);
receiving the PDSCH on the active downlink BWP; and
transmitting a Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) on a Physical Uplink Control CHannel (PUCCH), wherein
a value NRIV of a frequency domain resource allocation field included in the DCI format is equal to NsizeBWP*(LRBs−1)+RBstart, in response to LRBs−1 being equal to or smaller than floor(NsizeBWP/2),
the value NRIV is equal to NsizeBWP*(NsizeBWP−LRBs+1)+(NsizeBWP−1−RBstart) in response to LRBs−1 being larger than floor(NsizeBWP/2),
the floor(NsizeBWP/2) is a largest integer within a range that does not exceed the NsizeBWP/2,
the RBstart is a starting resource block for allocation of the PDSCH,
the LRBs is a number of allocated resource blocks for the PDSCH,
the NsizeBWP is given based on whether or not a control resource number of resource set with an index O is configured,
the NsizeBWP is given based on a number of resource blocks for an initial downlink BWP configured by a first parameter in response to the control resource set with the index O being not configured and the DCI format being detected in a common search space, and
the NsizeBWP is given based on a number of resource blocks for the control resource set with the index O in response to the control resource set with the index O being configured by a second parameter different from the first parameter and the DCI format is being detected in a common search space.