Terminal apparatus, base station apparatus, and communication method

A base station, comprising:

• transmission circuitry configured to transmit, to a user equipment (UE), information to configure a scheduling cell and scheduled cell(s) for cross-carrier scheduling and to configure carrier indicator field (CIF) value for respective cell, and
• transmit a first PDCCH candidate with a CCE aggregation level (AL) in a first set of CCEs in a control resource set (CORESET) for a first DCI format associated with a first serving cell wherein the first set of CCEs is given at least based on the CIF value of the first serving cell and the first DCI format has a first size,
• transmit a second PDCCH candidate with the CCE AL in a second set of CCEs in the CORESET for a second DCI format associated with a second serving cell wherein the second set of CCEs is given at least based on the CIF value of the second serving cell and the second DCI format has a second size and is used for an uplink grant Type 2 PUSCH release, wherein
• in a case that the first size and the second size are same, the transmission circuitry is further configured to transmit a PDCCH for the second DCI format in the first set of CCEs.

A method by a user equipment (UE), comprising:

• receiving, from a base station, information to configure a scheduling cell and scheduled cell(s) for cross-carrier scheduling and to configure carrier indicator field (CIF) value for respective cell;
• monitoring a first set of PDCCH candidates with a CCE aggregation level (AL) in a first set of CCEs in a control resource set (CORESET) for a first DCI format associated with a first serving cell wherein the first set of CCEs is given at least based on the CIF value of the first serving cell and the first DCI format has a first size;
• monitoring a second set of PDCCH candidates with the CCE AL in a second set of CCEs in the CORESET for a second DCI format associated with a second serving cell wherein the second set of CCEs is given at least based on the CIF value of the second serving cell and the second DCI format has a second size and is used for an uplink grant Type 2 PUSCH release;
• in a case that the first size and the second size are same, monitoring a PDCCH for the second DCI format in the first set of CCEs.