Base station apparatus, terminal apparatus, communication method, and integrated circuit

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

• a transmission unit configured to:
• transmit first information including at least one first setting,
• transmit second information including at least one second setting,
• transmit third information including at least one third setting, and
• transmit fourth information;
• and
• a reception unit configured to receive channel state information;
• wherein the at least one first setting comprises a plurality of first settings for at least one report of the channel state information,
• each of the plurality of first settings includes one first index,
• the at least one second setting comprises a plurality of second settings concerning at least one reference signal for measuring interference,
• each of the plurality of second settings includes one second index,
• the at least one third setting includes one of the first indices, one of the second indices, and one third index, and
• the fourth information includes information for indicating at least one of the third indices.

A communication method for a terminal apparatus for communicating with a base station apparatus, the communication method comprising the steps of:

• receiving first information including at least one first setting;
• receiving second information including at least one second setting;
• receiving third information including at least one third setting;
• receiving fourth information;
• measuring channel state information;
• and
• reporting the channel state information based on interference that is measured,
• wherein the at least one first setting comprises a plurality of first settings for at least one report of the channel state information,
• each of the plurality of first settings includes one first index,
• the at least one second setting comprises a plurality of second settings concerning at least one reference signal for measuring the channel state information,
• each of the plurality of second settings includes one second index,
• the at least one third setting includes one of the first indices, one of the second indices, and one third index, and
• the fourth information includes information for indicating at least one of the third indices.

A communication method for a base station apparatus for communicating with a terminal apparatus, the communication method comprising the steps of:

• transmitting first information including at least one first setting;
• transmitting second information including at least one second setting;
• transmitting third information including at least one third setting;
• transmitting fourth information;
• and
• receiving channel state information;
• wherein the at least one first setting comprises a plurality of first settings for at least one report of the channel state information,
• each of the plurality of first settings includes one first index,
• the at least one second setting comprises a plurality of second settings concerning at least one reference signal for measuring interference,
• each of the plurality of second settings includes one second index,
• each of the plurality of second settings concerning the at least one reference signal includes one second index,
• the at least one third setting includes one of the first indices, one of the second index indices, and one third index, and
• the fourth information includes information for indicating at least one of the third indices.

An integrated circuit mounted in a terminal apparatus for communicating with a base station apparatus, the integrated circuit comprising:

• a receiver configured to:
• receive first information including at least one first setting,
• receive second information including at least one second setting,
• receive third information including at least one third setting, and
• receive fourth information;
• a channel state measurer configured to measure channel state information;
• and
• a transmitter configured to report the channel state information based on interference that is measured,
• wherein the at least one first setting comprises a plurality of first settings for at least one report of the channel state information,
• each of the plurality of first settings includes one first index,
• the at least one second setting comprises a plurality of second settings concerning at least one reference signal for measuring the channel state information,
• each of the plurality of second settings includes one second index,
• the at least one third setting includes one of the first indices, one of the second indices, and one third index, and
• the fourth information includes information for indicating at least one of the third indices.

An integrated circuit mounted in a base station apparatus for communicating with a terminal apparatus, the integrated circuit comprising:

• a transmitter configured to:
• transmit first information including at least one first setting,
• transmit second information including at least one second setting,
• transmit third information including at least one third setting, and
• transmit fourth information;
• and
• a receiver configured to receive channel state information;
• wherein the at least one first setting comprises a plurality of first settings for at least one report of the channel state information,
• each of the plurality of first setting includes one first index,
• the at least one second settings) comprises a plurality of second settings concerning at least one reference signal for measuring interference,
• each of the plurality of second settings includes one second index,
• the at least one third setting includes one of the first indices, one of the second indices, and one third index, and
• the fourth information includes information for indicating at least one of the third indices.