Patent ID: 9155083
Filing Date: 2015-10-06
Classification: H04B,H04L,H04W

Abstract:
1. A method for transmitting, by a user equipment, an Acknowledgement/Negative Acknowledgement (ACK/NACK) signal in a wireless communication system, the method comprising: receiving a radio resource control signal on a primary cell configuring the user equipment to a Physical Uplink Control Channel (PUCCH) format 3; receiving a Physical Downlink Shared Channel (PDSCH) for the primary cell; and when only the PDSCH for the primary cell is received, transmitting an ACK/NACK signal corresponding to the PDSCH using a first PUCCH format, wherein the ACK/NACK signal is transmitted using an antenna port transmission mode configured for the PUCCH format 3 when the ACK/NACK signal is transmitted using the first PUCCH format, and wherein the first PUCCH format is one of a PUCCH format 1a or a PUCCH format 1b.