Patent ID: 8902841

Claim:
A terminal apparatus that communicates with a base station apparatus, comprising: a generation unit configured to generate a demodulation reference signal on the basis of a demodulation reference signal sequence given by multiplying a reference signal sequence by a certain sequence, the demodulation reference signal being associated with a transmission of a physical uplink shared channel, and a reception unit configured to receive downlink control information, wherein for a downlink control information format 0: the certain sequence is [1 1] in a case where a parameter associated with the orthogonal cover code for the demodulation reference signal is not set or in a case where a temporary Cell-Radio Network Temporary Identity (C-NRTI) was used to transmit the downlink control information; and the certain sequence is one of [1 1] and [1 −1], and is based on cyclic shift information in the downlink control information, in a case where the parameter associated with the orthogonal cover code for the demodulation reference signal is set and the temporary C-RNTI was not used to transmit the downlink control information.