Patent ID: 9160493
Filing Date: 2015-10-13
Classification: H04L

Abstract:
1. A method of transmitting an acknowledgement (ACK)/negative acknowledgement (NACK) signal by a user equipment in a wireless communication system, the method comprising: receiving one or more data units through a first component carrier (CC) group or a second CC group from a base station, each CC group including a plurality of CCs; bundling one or more ACK/NACK results for the one or more data units per CC to obtain a plurality of bundled ACK/NACK results; and transmitting a two-bit value corresponding to the plurality of bundled ACK/NACK results to the base station using a physical uplink control channel (PUCCH) resource in an uplink subframe including a first slot and a second slot, the PUCCH resource being selected from a plurality of PUCCH resources according to the plurality of bundled ACK/NACK results, wherein if the one or more data units are received through the first CC group, the two-bit value is transmitted only in the first slot of the subframe, and wherein if the one or more data units are received through the second CC group, the two-bit value is transmitted only in the second slot of the subframe.