Method and device for transmitting response information, and resource allocation for response information transmission according to transmission conditions in a wireless communication system

A method of transmitting response information in a wireless communication system, the method comprising:

• configuring a wireless communication with at least one base station using a carrier aggregation, the carrier aggregation comprising an aggregation of a primary component carrier and a second component carrier;
• receiving, from a base station, first control information through a first Physical Downlink Control Channel (PDCCH) of the primary component carrier, and receiving, from the base station, first data through a first Physical Downlink Shared Channel (PDSCH) of the secondary component carrier, the first PDSCH being configured to be identified based on the first PDCCH;
• transmitting, to the base station, first response information with respect to the first data, the first response information being allocated on a resource having a first resource index, wherein the first response information comprises a first acknowledgment bit and a second acknowledgement bit;
• receiving, from the base station, second control information through a second PDCCH of the secondary component carrier, and receiving, from the base station, second data through a second PDSCH of the secondary component carrier, wherein the second control information contains information on the second PDSCH and a Transmit Power Control (TPC) value;
• and
• transmitting, to the base station, second response information with respect to the second data, wherein the second response information comprises a third acknowledgement bit and a fourth acknowledgement bit,
• wherein resource indexes of the third acknowledgement bit and the fourth acknowledgment bit are determined based on the TPC value.

A base station to receive response information in a wireless communication system, the base station comprising:

• a memory configured to store program instructions;
• and
• a processor operably coupled to the memory;
• wherein the processor, when executing the program instructions, is configured to:
• cause, a carrier aggregation for a user equipment, the carrier aggregation comprising an aggregation of a primary component carrier and a secondary component carrier;
• cause, to the user equipment, first control information to be transmitted through a first Physical Downlink Control Channel (PDCCH) of the primary component carrier and cause, to the user equipment, first data to be transmitted through a first Physical Downlink Shared Channel (PDSCH) of the secondary component carrier, the first PDSCH being configured to be identified based on the first PDCCH,
• cause, from the user equipment, first response information with respect to the first data of the first PDSCH to be received, the first response information being allocated on a resource having a first resource index, wherein the first response information comprising a first acknowledgment bit and a second acknowledgement bit, and
• determine, to the user equipment, whether to retransmit at least part of the first data based on the first response information;
• cause, to the user equipment, second control information to be transmitted through a second PDCCH of the secondary component carrier;
• cause, to the user equipment, second data to be transmitted through a second PDSCH of the secondary component carrier, wherein the second control information contains information on the second PDSCH and a Transmit Power Control (TPC) value;
• and
• cause, from the user equipment, second response information corresponding to the second data to be received, wherein the second response information comprises a third acknowledgement bit and a fourth acknowledgement bit,
• wherein resource indexes of the third acknowledgement bit and the fourth acknowledgment bit are determined based on the TPC value.

A user equipment to transmit response information in a wireless communication system, the user equipment comprising:

• a memory configured to store program instructions;
• and
• a processor operably coupled to the memory,
• wherein the processor, when executing the program instructions, is configured to:
• cause, a wireless communication with one or more base station using a carrier aggregation, the carrier aggregation comprising an aggregation of a primary component carrier and a second component carrier;
• cause, from a base station, first control information to be received through a first Physical Downlink Control Channel (PDCCH) of the primary component carrier, and cause, from the base station, first data to be received through a first Physical Downlink Shared Channel (PDSCH) of the secondary component carrier, the first PDSCH being configured to be identified based on the first PDCCH,
• cause, to the base station, first response information with respect to the first data of the first PDSCH to be transmitted, the first response information being allocated on a resource having a first resource index, wherein the first response information comprising a first acknowledgment bit and a second acknowledgement bit;
• cause, from the base station, second control information to be received through a second PDCCH of the secondary component carrier;
• cause, from the base station, second data to be received through a second PDSCH of the secondary component carrier, wherein the second control information contains information on the second PDSCH and a Transmit Power Control (TPC) value;
• and
• cause, to the base station, second response information corresponding to the second data to be transmitted, wherein the second response information comprises a third acknowledgement bit and a fourth acknowledgement bit,
• wherein resource indexes of the third acknowledgement bit and the fourth acknowledgment bit are determined based on the TPC value.