Terminal device and base station device

A base station device for communicating with a terminal device, the base station device comprising:

• a control information generation unit that generates radio resource control (RRC) in a radio resource and downlink control information (DCI);
• and
• a transmission processing unit that transmits the RRC and the DCI,
• wherein after making setting about superposition coding of a plurality of users with the RRC, the control information generation unit generates the DCI by adding information about the superposition coding of the plurality of users to a predetermined DCI format, and
• the information to be added indicates at least one of information about transmission power, existence of interference and a modulation scheme of the interference.

A terminal device for communicating with a base station device, the terminal device comprising:

• a reception processing unit that receives radio resource control (RRC) in setting about superposition coding of a plurality of users in a radio resource and downlink control information (DCI) indicating resource allocation for receiving PDSCH,
• a control information detection unit that detects information related to a data signal contained in the DCI, and
• a signal detection unit that detects the data signal transmitted via PDSCH,
• wherein after making setting about the superposition coding of the plurality of users with the RRC, the control information detection unit judges that information of a predetermined number of bits about the superposition coding of the plurality of users is added to a predetermined DCI, and
• the added information is at least one of information about transmission power, existence of interference and a modulation scheme of the interference.