METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA AND FEEDBACK IN WIRELESS COMMUNICATION SYSTEM

1 . A method of performing communication by a terminal in a wireless communication system, the method comprising:

storing feedback information for data transmitted from a base station in at least one hybrid automatic repeat request (HARQ) process;

receiving control information including an indication of feedback triggering; and

transmitting the stored feedback information based on the indication of the feedback triggering.

2 . The method of claim 1 , wherein the feedback information is stored in a hard buffer from among a plurality of buffers including the hard buffer and a soft buffer.

3 . The method of claim 1 , further comprising storing at least one code block (CB) that was successfully decoded among the data transmitted from the base station.

4 . The method of claim 1 , further comprising storing at least one code block (CB) that was successfully decoded and storing a cyclic redundant check (CRC) of the at least one CB, the at least one CB being among the data transmitted from the base station.

5 . The method of claim 3 , wherein storing the feedback information comprises storing identification information for the at least one CB that was successfully decoded in a hard buffer and storing identification information for at least one CB that was not successfully decoded in a soft buffer.

6 . A method of performing communication by a base station in a wireless communication system, the method comprising:

transmitting data to a terminal;

transmitting, to the terminal, control information including an indication of feedback triggering; and

receiving feedback information for data in at least one hybrid automatic repeat request (HARQ) process based on the indication of the feedback triggering, the data being among the transmitted data.

7 . The method of claim 6 , wherein the feedback information is stored in a hard buffer from among a plurality of buffers of the terminal, the plurality of buffers including the hard buffer and a soft buffer.

8 . A terminal for performing communication in a wireless communication system, the terminal comprising:

at least one buffer;

a transceiver; and

a processor coupled with the transceiver and the at least one buffer, and configured to:

store, in the at least one buffer, feedback information for data transmitted from a base station in at least one hybrid automatic repeat request (HARQ) process;

control the transceiver to receive control information including an indication of feedback triggering; and

control the transceiver to transmit the stored feedback information based on the indication of the feedback triggering.

9 . The terminal of claim 8 , wherein the feedback information is stored in a hard buffer from among a plurality of buffers including the hard buffer and a soft buffer.

10 . The terminal of claim 8 , wherein the processor is further configured to store at least one code block (CB) that was successfully decoded among the data transmitted from the base station.

11 . The terminal of claim 8 , wherein the processor is further configured to store at least one code block (CB) that was successfully decoded and store a cyclic redundant check (CRC) of the at least one CB, the at least one CB being among the data transmitted from the base station.

12 . The terminal of claim 10 , wherein the processor is further configured to store identification information for the at least one CB that was successfully decoded in a hard buffer and identification information for at least one CB that was not successfully decoded in a soft buffer.

13 . A base station for performing communication in a wireless communication system, the base station comprising:

a transceiver; and

a processor coupled with the transceiver and configured to control the transceiver to:

transmit data to a terminal;

transmit, to the terminal, control information including an indication of feedback triggering; and

receive feedback information for data in at least one hybrid automatic repeat request (HARQ) process based on the indication of the feedback triggering, the data being among the transmitted data.

14 . The base station of claim 13 , wherein the feedback information is stored in a hard buffer from among a plurality of buffers of the terminal, the plurality of buffers including the hard buffer and a soft buffer.

15 . A non-transitory computer-readable recording medium having recorded thereon a program for executing the method of claim 1 on a computer.