Terminal device, base station device, and communication method using channel quality indicator (CQI) tables and modulation coding scheme (MCS) tables to determine modulation scheme

A base station apparatus comprising:

• a PDSCH generation unit that modulates a Physical Downlink Shared Channel (PDSCH), and
• a transmission unit that transmits, to a terminal apparatus, the PDSCH and a Physical Downlink Control Channel (PDCCH);
• the PDSCH includes Radio Resource Control (RRC) information that includes an indication of applicability of a second Channel Quality Indicator (CQI) table of a first CQI table and the second CQI table;
• a PDSCH modulation unit that determines a modulation scheme which is used in the PDSCH modulation, using at least either a first Modulation Coding Scheme (MCS) table or a second MCS table, wherein
• the first MCS table is used to determine the modulation scheme if the indication is configured and the PDSCH is assigned by the PDCCH in common search space,
• the first MCS table includes information relating to a first modulation scheme, the information relating to the first modulation scheme corresponds to QPSK, 16 QAM, or 64 QAM,
• the second MCS table includes information relating to a second modulation scheme, the information relating to the second modulation scheme corresponds to QPSK, 16 QAM, 64 QAM, or 256 QAM,
• the first CQI table includes information relating to a third modulation scheme, the information relating to the third modulation scheme includes QPSK, 16QAM, or 64QAM,
• the second CQI table includes information relating to a forth modulation scheme, and the information relating to the forth modulation scheme includes QPSK, 16QAM, 64QAM, and 256QAM.