Patent ID: 8369307
Filing Date: 2013-02-05
Classification: H04L

Abstract:
1. A base station apparatus using an automatic repeat request (ARQ) procedure, said base station apparatus comprising: a reception unit configured to receive data from a terminal apparatus in an uplink; an error detection unit configured to perform an error detection for the data by using an error-detecting code; and a transmission unit configured to transmit, to the terminal apparatus: (i) an acknowledgment (ACK) signal when said error detection unit detects no error; (ii) a negative acknowledgement (NACK) signal when said error detection unit detects an error; and (iii) a control signal, which is a different signal from the ACK signal and the NACK signal, pairing with the ACK signal or the NACK signal, for governing operations, which are performed in the terminal apparatus, including a new transmission, a retransmission, and no transmission of a new transmission and a retransmission, wherein the base station apparatus is configured to perform the ARQ procedure by cooperating with the terminal apparatus which performs the operations governed by the control signal and performs no operation according to only the ACK signal or the NACK signal.