BASE STATION DEVICE, TERMINAL DEVICE, RESOURCE ALLOCATION METHOD AND RESPONSE SIGNAL TRANSMISSION METHOD

摘要

A base station apparatus is disclosed in which control section (150) generates an index indicating a response signal resource to be used for transmission of a response signal in response to downlink data of a plurality of CCs for at least each second CC, and transmitting section (160) transmits control information including the index. When a terminal receives the control information using only one second CC or two or more CCs among the plurality of CCs, the terminal apparatus determines the response signal resource based on the index of the second CC. Control section (150) specifies, as the response signal resource, using the index of the second CC, a first resource for transmission of a response signal in response to downlink data transmitted using only one CC or a second resource for transmission of a plurality of response signals in response to downlink data transmitted using a plurality of CCs.

主权项

1. A base station apparatus configured to transmit downlink data to a terminal apparatus using a plurality of component carriers (CCs) including one first CC and one or a plurality of second CCs, the base station apparatus comprising:
a control section that generates an index indicating a response signal resource to be used for transmission of a response signal in response to the downlink data of the plurality of CCs for at least each of the second CCs; and a transmitting section that transmits control information including the index, wherein: when the terminal apparatus receives the control information using only one second CC or two or more CCs among the plurality of CCs, the terminal apparatus determines the response signal resource based on the index of the second CC; and the control section specifies a first resource or a second resource as the response signal resource using the index of the second CC, the first resource being a resource for transmission of a response signal in response to downlink data transmitted using only one CC, the second resource being a resource for transmission of a plurality of response signals in response to downlink data transmitted using a plurality of CCs.