Patent ID: 9722757
Date: 2017-08-01
CPC Classifications: H04L,H04W

Claim:
1. A method for transmitting uplink control information by a communication apparatus configured with a plurality of cells including a primary cell and a secondary cell in a wireless communication system, the method comprising: identifying a Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK)(0), HARQ-ACK(1) and HARQ-ACK(2); and transmitting bits b(0)b(1) using a Physical Uplink Control Channel (PUCCH) resource based on the HARQ-ACK (0), the HARQ-ACK(1) and the HARQ-ACK(2), according to a relation including Table 1, to efficiently transmit uplink control information, where the HARQ-ACK(0) and the HARQ-ACK(1) indicate Acknowledgement (ACK)/Negative ACK (ACK/NACK)/Discontinuous Transmission (DTX) responses to data blocks related to a first cell, the HARQ-ACK(2) indicates ACK/NACK/DTX response to a data block related to a second cell, n