A terminal apparatus configured to communicate with a base station apparatus, the terminal apparatus comprising: a reception unit configured to receive system information indicating a first uplink-downlink configuration used for transmission on a physical uplink shared channel, PUSCH, and a special subframe configuration indicating lengths of fields reserved for uplink and downlink transmissions in a special subframe, radio resource control information indicating a second uplink-downlink configuration used for transmission of hybrid automatic repeat request, HARQ, information on a physical uplink control channel, PUCCH, and downlink control information indicating a third uplink-downlink configuration used for monitoring of a physical downlink control channel, PDCCH, wherein each of the first to third uplink-downlink configuration indicates which one of an uplink subframe, a downlink subframe, and a special subframe each subframe corresponds to; and a transmission unit configured to perform, upon detection of transmission on the PDCCH, the transmission on the PUSCH based on the first uplink-downlink configuration, and perform, upon detection of transmission on a physical downlink shared channel, PDSCH, the transmission on the PUCCH of the HARQ information based on the second uplink-downlink configuration, wherein in a case that a PUCCH format 3 is configured for the transmission of the HARQ information, whether or not the special subframe given by the radio resource control information is excluded from a HARQ codebook size determination is defined by the special subframe configuration indicated by the system information and a cyclic prefix in the downlink. a reception unit configured to receive system information indicating a first uplink-downlink configuration used for transmission on a physical uplink shared channel, PUSCH, and a special subframe configuration indicating lengths of fields reserved for uplink and downlink transmissions in a special subframe, radio resource control information indicating a second uplink-downlink configuration used for transmission of hybrid automatic repeat request, HARQ, information on a physical uplink control channel, PUCCH, and downlink control information indicating a third uplink-downlink configuration used for monitoring of a physical downlink control channel, PDCCH, wherein each of the first to third uplink-downlink configuration indicates which one of an uplink subframe, a downlink subframe, and a special subframe each subframe corresponds to; and system information indicating a first uplink-downlink configuration used for transmission on a physical uplink shared channel, PUSCH, and a special subframe configuration indicating lengths of fields reserved for uplink and downlink transmissions in a special subframe, a first uplink-downlink configuration used for transmission on a physical uplink shared channel, PUSCH, and a special subframe configuration indicating lengths of fields reserved for uplink and downlink transmissions in a special subframe, radio resource control information indicating a second uplink-downlink configuration used for transmission of hybrid automatic repeat request, HARQ, information on a physical uplink control channel, PUCCH, and downlink control information indicating a third uplink-downlink configuration used for monitoring of a physical downlink control channel, PDCCH, wherein each of the first to third uplink-downlink configuration indicates which one of an uplink subframe, a downlink subframe, and a special subframe each subframe corresponds to; and a transmission unit configured to perform, upon detection of transmission on the PDCCH, the transmission on the PUSCH based on the first uplink-downlink configuration, and perform, upon detection of transmission on a physical downlink shared channel, PDSCH, the transmission on the PUCCH of the HARQ information based on the second uplink-downlink configuration, wherein perform, upon detection of transmission on the PDCCH, the transmission on the PUSCH based on the first uplink-downlink configuration, and perform, upon detection of transmission on a physical downlink shared channel, PDSCH, the transmission on the PUCCH of the HARQ information based on the second uplink-downlink configuration, wherein in a case that a PUCCH format 3 is configured for the transmission of the HARQ information, whether or not the special subframe given by the radio resource control information is excluded from a HARQ codebook size determination is defined by the special subframe configuration indicated by the system information and a cyclic prefix in the downlink.