Method for receiving information for measuring self-interference, and terminal therefor

1. A method of receiving information for measuring self-interference by a user equipment, the method comprising:

receiving Reference Signal (RS) configuration information on a RS for a self-interference measurement from a base station;

measuring self-interference using the RS for the self-interference measurement based on the RS configuration information;

reporting information on a measurement result of the self-interference to the base station,

wherein measuring the self-interference further comprises:

obtaining, for each of a plurality of frequency locations, a residual self-interference measurement value which remains after self-interference cancellation (SIC) is performed by the user equipment based on the RS configuration information; and

wherein reporting the information on the measurement result of the self-interference comprises:

selecting M residual self-interference measurement values from among a plurality of residual self-interference measurement values obtained for the plurality of frequency locations; and

reporting, to the base station, the selected M residual self-interference measurement values along with an RS configuration index associated with each of the selected M residual self-interference measurement values.

2. The method of claim 1 , wherein the RS configuration information includes information on a resource location of the RS for the self-interference measurement.

3. The method of claim 1 , wherein the RS configuration information is received through at least one of Radio Resource Control (RRC) message, Downlink Control Information (DCI), or a group-common Physical Downlink Control CHannel (PDCCH).

4. The method of claim 1 , further comprising: receiving control information indicating whether to measure the self-interference based on the RS configuration information being valid.

5. The method of claim 4 , wherein the control information further includes information on a frequency location of the RS related to the valid RS configuration information.

6. The method of claim 4 , wherein the control information further includes information of a specific time period in which the RS configuration information is valid and wherein the measurement of the self-interference is performed during the specific time period.

7. The method of claim 1 , wherein the information on the measurement result of the self-interference is periodically reported.

8. The method of claim 1 , further comprising: receiving a signal indicating whether to enable or disable periodic self-interference measurement,

wherein the self-interference measurement is related to periodic self-interference measurement based on the signal indicating “enable”.

9. The method of claim 1 , wherein the self-interference cancellation is performed in an analog domain.

10. A user equipment for receiving information for measuring self-interference, the user equipment comprising:

a receiver configured to receive Reference Signal (RS) configuration information on an RS for self-interference measurement from a base station;

a processor configured to measure self-interference using the RS for the self-interference measurement based on the RS configuration information; and

a transmitter configured to report information on a measurement result of the self-interference to the base station,

wherein the processor is further configured to:

obtain, for each of a plurality of frequency locations, a residual self-interference measurement value, the residual self-interference measurement value being determined after self-interference cancellation (SIC) is performed based on the RS configuration information; and

select M residual self-interference measurement values among a plurality of residual self-interference measurement values obtained for the plurality of frequency locations; and

wherein the information on the measurement result of the self-interference reported to the base station includes the selected M residual self-interference measurement values and an RS configuration index associated with each of the selected M residual self-interference measurement values.

11. The user equipment of claim 10 , wherein the RS configuration information includes information on a resource location of the RS for the self-interference measurement.

12. The user equipment of claim 10 , wherein the receiver is configured to receive control information indicating to perform the self-interference measurement based on the RS configuration information being valid.

13. The user equipment of claim 10 , wherein the self-interference cancellation is performed in an analog domain.

14. The user equipment of claim 10 , wherein the user equipment is configured to communicate with at least one of another user equipment, a user equipment related to an autonomous driving vehicle, another base station, or a network.