Mobile station apparatus, base station apparatus, wireless communication system, wirelss communication method and integrated circuit

A mobile station apparatus transmitting a plurality of ACK/NACKs for transport blocks received in a plurality of component carriers, the mobile station apparatus comprising:

• a coding unit configured to
• individually code first ACK/NACKs and second ACK/NACKs,
• perform repetition processing on coded bits of said first ACK/NACKs until the number of coded bits of said first ACK/NACKs reaches a first value,
• perform the repetition processing on the coded bits of said second ACK/NACKs until the number of coded bits of said second ACK/NACKs reaches a second value, and
• concatenate the coded bits of said first ACK/NACKs and the coded bits of said second ACK/NACKs;
• and
• a radio transmission unit configured to transmit said first ACK/NACKs and said second ACK/NACKs using one physical uplink channel.

A base station apparatus receiving a plurality of ACK/NACKs for transport blocks transmitted to a mobile station apparatus in a plurality of component carriers from said mobile station apparatus, the base station apparatus comprising:

• a reception unit configured to receive and decode first ACK/NACKs and second ACK/NACKs which are individually coded from said mobile station apparatus using one physical uplink channel, wherein
• repetition processing is performed on coded bits of said first ACK/NACKs until the number of coded bits of said first ACK/NACKs reaches a first value by said mobile station apparatus,
• the repetition processing is performed on the coded bits of said second ACK/NACKs until the number of coded bits of said second ACK/NACKs reaches a second value by said mobile station apparatus and
• the coded bits of the first ACK/NACK and the coded bits of the second ACK/NACK are concatenated by said mobile station apparatus.

An integrated circuit used by a mobile station apparatus transmitting a plurality of ACK/NACKs for transport blocks received in a plurality of component carriers, wherein

• said mobile station apparatus is made to achieve a series of functions of:
• individually coding first ACK/NACKs and second ACK/NACKs;
• performing repetition processing on coded bits of said first ACK/NACKs until the number of coded bits of said first ACK/NACKs reaches a first value;
• performing the repetition processing on the coded bits of said second ACK/NACKs until the number of coded bits of said second ACK/NACKs reaches a second value;
• concatenating the coded bits of said first ACK/NACKs and the coded bits of said second ACK/NACKs;
• and
• transmitting said first ACK/NACKs and said second ACK/NACKs using one physical uplink channel.

An integrated circuit used by a base station apparatus receiving a plurality of ACK/NACKs for transport blocks transmitted to a mobile station apparatus in a plurality of component carriers from said mobile station apparatus, wherein

• said base station apparatus is made to achieve a function of receiving and decoding first ACK/NACKs and second ACK/NACKs that are individually coded from said mobile station apparatus using one physical uplink channel,
• repetition processing is performed on coded bits of said first ACK/NACKs until the number of coded bits of said first ACK/NACKs reaches a first value by said mobile station apparatus,
• the repetition processing is performed on the coded bits of said second ACK/NACKs until the number of coded bits of said second ACK/NACKs reaches a second value by said mobile station apparatus and
• the coded bits of said first ACK/NACKs and the coded bits of said second ACK/NACKs are concatenated by said mobile station apparatus.