Patent ID: 9338765
Filing Date: 2016-05-10
CPC Classification: H04L,H04W,Y02D

Claim Text:
1. A terminal apparatus which, in operation, communicates with a base station apparatus using a plurality of component carriers including at least a first component carrier and a second component carrier, the terminal apparatus comprising: a decoder which, in operation, stores, in a retransmission buffer, first and second downlink data respectively received in the first and second component carriers, wherein a first configuration pattern of uplink and downlink subframes is set for the first component carrier and a second configuration pattern of uplink and downlink subframes is set for the second component carrier; determines a reference configuration pattern of uplink and downlink subframes based on the first and second configuration patterns; stores the second downlink data in the retransmission buffer in reference to a maximum number of downlink HARQ (hybrid automatic repeat request) retransmission processes executable in the determined reference configuration pattern; and decodes the first and second downlink data; a signal generator which, in operation, generates a first response signal using a result of error detection of the first downlink data and a second response signal using a result of error detection of the second downlink data; and a transmitter which, in operation, transmits the first and second response signals in the first component carrier.