TERMINAL DEVICE, AND BUFFER PARTITIONING METHOD

摘要

Provided is a terminal device with which deterioration in hybrid automatic repeat request (HARQ) retransmission performance can be inhibited by continuing a downlink (DL) HARQ process for DL data before and after changing the uplink link-DL configuration. In this device, a decoder (210) stores, in a retransmission buffer, DL data transmitted from a base station, and decodes the DL data, and a wireless transmitter (222) transmits a response signal generated using a DL-data-error detection result. A soft buffer is partitioned into a plurality of regions for each retransmission process on the basis of the highest values among retransmission process numbers respectively stated in a plurality of configuration patterns which can be set in the terminal (200).

主权项

1. A terminal apparatus capable of changing a setting of a configuration pattern of subframes forming one frame, the configuration pattern including a downlink communication subframe used for downlink communication and an uplink communication subframe used for uplink communication, the terminal apparatus comprising:
a decoding section that stores downlink data transmitted from a base station apparatus in a buffer for retransmission and decodes the downlink data; and a transmitting section that transmits a response signal generated using an error detection result of the downlink data, wherein the buffer is divided into a plurality of regions for each retransmission process based on a maximum value among numbers of retransmission processes respectively defined in a plurality of the configuration patterns capable of being set in the terminal apparatus.