Patent ID: 9294229
Filing Date: 2016-03-22
CPC Classification: H04L

Claim Text:
1. A method of transmitting acknowledgement (ACK)/negative-ACK (HACK) signals by a user equipment in a wireless communication system, the method comprising: receiving a plurality of data units from a base station; and transmitting a plurality of ACK/NACK signals corresponding to the plurality of data units in a subframe comprising a first slot and a second slot, wherein the plurality of ACK/NACK signals include a first ACK/NACK signal and a second ACK/NACK signal, wherein when physical uplink control channel (PUCCH) resources for the first and second ACK/NACK signals are reserved, the first ACK/NACK signal is transmitted in only the first slot and the second ACK/NACK signal is transmitted in only the second slot, wherein when a PUCCH resource for the first ACK/NACK signal is reserved and a PUCCH resource for the second ACK/NACK signal is not reserved due to a physical downlink control channel (PDCCH) decoding failure, the first ACK/NACK signal is transmitted in both the first and second slots, and wherein each of the first and second slots is a 0.5 millisecond time interval.