Patent ID: 9554374
Date: 2017-01-24
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method for transmitting uplink control information at a User Equipment (UE) configured with a plurality of Component Carriers (CCs) including a Primary CC (PCC) and a secondary CC (SCC) in a wireless communication system, the method comprising: receiving one or more physical channel signals in a subframe, wherein each of the one or more physical channel signals requires Acknowledgement/Negative ACK (ACK/NACK) feedback, and the one or more physical channel signals include at least one of one or more Physical Downlink Shared Channel (PDSCH) signals and one or more Physical Downlink Control Channel (PDCCH) signals indicating Semi-Persistent Scheduling (SPS) release; and transmitting ACK/NACK information for the one or more physical channel signals via a Physical Uplink Control Channel (PUCCH), wherein when only a single physical channel signal is received on the PCC, the ACK/NACK information is transmitted using a first PUCCH format, and wherein when at least one physical channel signal is received on the SCC, the ACK/NACK information is transmitted using a second PUCCH format.