Terminal device, base station device, communication method, and integrated circuit

A base station device comprising:

• transmission circuitry configured to
• transmit, to a terminal device, first information for one or a plurality of first channel state information reports corresponding to one or a plurality of first channel state information processes on a first physical uplink channel in a first serving cell,
• transmit, to a terminal device, second information for a plurality of second channel state information reports corresponding to one or a plurality of second channel state information processes on a second physical uplink channel in a second serving cell;
• reception circuitry configured to
• receive the one or the plurality of first channel state information reports in a first subframe,
• receive the plurality of second channel state information reports in the first subframe,
• wherein
• in a case that a total of a number of the one or plurality of first channel state information reports and a number of the plurality second channel state information reports in the first subframe exceeds a first certain number, a second certain number of the plurality of second channel state information reports of the one or the plurality of first channel state information reports and the plurality of second channel state information reports are dropped, and
• the second certain number is a number obtained by subtracting the first certain number from the total of the number of the one or the plurality of first channel state information reports and the number of the plurality of second channel state information reports.

A communication method for a terminal device, the communication method comprising the steps of:

• receiving, from a base station device, first information for one or a plurality of first channel state information reports corresponding to one or a plurality of first channel state information process on a first physical uplink channel in a first serving cell;
• receiving, from the base station device, second information for a plurality of second channel state information reports corresponding to a plurality of second channel state information processes on a second physical uplink channel in a second serving cell;
• performing the one or the plurality of first channel state information reports in a first subframe;
• and
• performing the plurality of second channel state information reports in the first subframe, wherein
• in a case that a total of a number of the one or the plurality of first channel state information reports and a number of the plurality of second channel state information reports in the first subframe exceeds a first certain number, a second certain number of the second channel state information reports of the one or the plurality of first channel state information reports and the plurality of second channel state information reports are not updated,
• the second certain number is a number obtained by subtracting the first certain number from the total of the number of the one or the plurality of first channel state information reports and the number of the plurality of second channel state information reports,
• the one or the plurality of first channel state information reports are periodic channel state information report, and
• the plurality of second channel state information reports are periodic channel state information reports.

A communication method for a base station device, the communication method comprising the steps of:

• transmitting, to a terminal device, first information for one or a plurality of first channel state information reports corresponding to one or a plurality of first channel state information processes on a first physical uplink channel in a first serving cell;
• transmitting, to the terminal device, second information for a plurality of second channel state information reports corresponding to a plurality of second channel state information processes on a second physical uplink channel in a second serving cell;
• receiving the one or the plurality of first channel state information reports in a first subframe;
• and
• receiving the plurality of second channel state information reports in the first subframe, wherein
• in a case that a total of a number of the one or the plurality of first channel state information reports and a number of the plurality of second channel state information reports in the first subframe exceeds a first certain number, a second certain number of the second channel state information reports of the one or the plurality of first channel state information reports and the plurality of second channel state information reports are dropped, and
• the second certain number is a number obtained by subtracting the first certain number from the total of the number of the one or the plurality of first channel state information reports and the number of the plurality of second channel state information reports.