TERMINAL AND RESPONSE TRANSMISSION METHOD

摘要

This invention is related to a terminal apparatus that can normally transmit an upstream response signal. A response signal generating unit (212); generates response signals on the basis of a setting rule in which pattern candidates of success or failure in the reception of downstream allocation control information and downstream data are associated with the phase points of response signals and further in which the phase point of one response signal associated with an arbitrary pattern of success or failure in the reception during the second communication has been set to be identical with the phase points of two response signals associated with pattern candidates for which the pattern of success or failure in the reception at PCC during the first communication is identical with the arbitrary pattern and for which all of the receptions of downstream allocation control information have been failed at SCC.

主权项

1. A terminal apparatus, comprising:
a receiving section that receives downlink allocation control information transmitted through a control channel of at least one of a plurality of component carriers, and downlink data transmitted through a data channel in first communication with a base station apparatus using the plurality of component carriers including a primary component carrier, or second communication with the base station apparatus using only the primary component carrier; a generating section that generates response signals indicating success or failure in receiving the downlink allocation control information and the downlink data; and a control section that configures phase points of the response signals, wherein: a phase point of the one response signal indicating the success or failure in reception for the primary component carrier in the second communication is configured to be identical to respective phase points of the two response signals indicating the success or failure in reception for the primary component carrier identical to the success or failure in reception for the primary component carrier in the second communication and the success or failure in reception which is a state in which the downlink allocation control information is not received through component carriers other than the primary component carrier.