Patent ID: 9608790
Date: 2017-03-28
CPC Classifications: H04L,H04W

Claim:
1. A method for transmitting a reception acknowledgement response by a user equipment in a wireless communication system, comprising: receiving an enhanced physical downlink control channel (EPDCCH); and transmitting, through a physical uplink control channel (PUCCH) resource, a reception acknowledgement response for one or more downlink subframes, wherein the PUCCH resource is determined based on a hybrid acknowledgement request-acknowledgement (HARQ-ACK) acknowledgement resource offset (ARO) and a lowest enhanced control channel element (ECCE) index, wherein, when the reception acknowledgement response is related to two or more of the one or more downlink subframes and is to be transmitted in a single subframe, a set of possible values for the HARQ-ACK ARO comprises a first ARO value which shifts a PUCCH resource of a second or later subframe of the two or more downlink subframes to a PUCCH resource corresponding to downlink subframe that is located at least one downlink subframe prior to the second or later subframe, and wherein the first ARO value shifts the PUCCH resource depending on which downlink subframe group the second or later subframe belongs to among downlink subframe groups.