Patent ID: 9191945
Filing Date: 2015-11-17
Classification: H04L,H04W

Abstract:
1. A method of transmitting acknowledgement/negative-acknowledgement (ACK/NACK) information by a user equipment (UE) in a wireless communication system, the method comprising: receiving downlink control information through a downlink (DL) control channel from a base station; transmitting ACK/NACK information to a DL data channel through an uplink (UL) control channel resource, wherein an index of the UL control channel resource is determined based on n*+k+N n* is a value corresponding to an index of the antenna port used for the DL control channel transmission; k is a value indicated by a predetermined field of a downlink control information (DCI) format of the DL control channel; and N wherein the DL control channel is transmitted in a localized manner.