Wireless communication method and apparatus in wireless communication device for transmitting feedback acknowledgement information

An apparatus in a wireless communication device, comprising:

• a processor and a memory storing program instructions;
• wherein when the program instructions are executed by the processor, the apparatus is configured to:
• determine whether a first time unit or a second time unit is a feedback timing corresponding to a first downlink channel transmitted through a first resource unit belonging to a first target resource set and a second target resource set;
• output, when the first time unit is not the feedback timing corresponding to the first downlink channel, first feedback information on the first time unit for responding to the first downlink channel, the first feedback information including placeholder information at an ACK/NACK bit corresponding to the first resource unit;
• and
• output, when the second time unit is the feedback timing corresponding to the first downlink channel, second feedback information on the second time unit for responding to the first downlink channel, the second feedback information including ACK/NACK values at the ACK/NACK bit corresponding to the first resource unit.