Patent ID: 9577810
Date: 2017-02-21
CPC Classifications: H04L,H04W

Claim:
1. A method for transmitting, by a user equipment, uplink control information, the method comprising: determining, by the user equipment, respective four first acknowledgement, negative acknowledgement or discontinuous transmission (ACK/NACK/DTX) responses for four downlink (DL) subframes of a first carrier and respective four second ACK/NACK/DTX responses for four DL subframes of a second carrier; and transmitting, by the user equipment, ACK/NACK information representing the four first and four second ACK/NACK/DTX responses through the first or second carrier in an uplink (UL) subframe, wherein the ACK/NACK information has a same value for when the four first ACK/NACK/DTX responses for the four DL subframes of the first carrier are a first sequence and the four second ACK/NACK/DTX responses for the four DL subframes of the second carrier are a sequence of ‘ACK, ACK, ACK, ACK’ and for when the four first ACK/NACK/DTX responses for the four DL subframes of the first carrier are the same first sequence and the four second ACK/NACK/DTX responses for the four DL subframes of the second carrier are a sequence of ‘ACK, DTX, DTX, DTX’.