A UE is described that communicates with a base station apparatus on serving cells having a primary cell and one or more secondary cells. The UE includes receiving circuitry configured to receive, a RRC message including first information configuring a CGB based transmission for a PDSCH. The receiving circuitry is also configured to receive, a RRC message including second information configuring a maximum number of CBGs per transport block. The UE includes processing circuitry configured to determine the number of bits for CBG transmission information comprised in a first DCI format, wherein the first DCI format is used for scheduling of the PDSCH. In a case that the first information is configured, the number of bits for the CBG transmission information comprised in the first DCI format may be determined based on the second information.