Techniques for self-interference cancelation

1. A method for wireless communication at a first wireless node, comprising:

transmitting, to a control node, an indication of a capability of the first wireless node to perform one or more self-interference cancelation procedures between a first antenna array of the first wireless node and a second antenna array of the first wireless node;

receiving, from the control node in response to the indication of the capability, a configuration for the first wireless node to use to perform a self-interference cancelation procedure of the one or more self-interference cancelation procedures for full-duplex communications; and

communicating, according to the received configuration, with the control node, a second wireless node, or any combination thereof, using the first antenna array and the second antenna array.

2. The method of claim 1 , wherein communicating according to the received configuration comprises:

transmitting one or more signals via the first antenna array for a time interval;

receiving the one or more signals via the second antenna array for the time interval; and

performing the self-interference cancelation procedure on the one or more signals received via the second antenna array.

3. The method of claim 1 , further comprising:

transmitting, to the control node, an indication of a capability of the first wireless node to enable or disable the one or more self-interference cancelation procedures, wherein the configuration is further based at least in part on the capability to enable or disable the one or more self-interference cancelation procedures.

4. The method of claim 1 , further comprising:

transmitting, to the control node, a set of parameters associated with the one or more self-interference cancelation procedures, wherein the configuration indicates values for at least a subset of the set of parameters.

5. The method of claim 1 , wherein the indication of the capability is transmitted in radio resource control signaling or F1 application protocol interface signaling.

6. The method of claim 1 , further comprising:

transmitting, to the control node, a measurement report comprising an indication of a set of self-interference measurements, wherein the configuration is received based at least in part on the measurement report.

7. The method of claim 6 , further comprising:

transmitting, in the measurement report, an indication of a self-interference cancelation procedure of the one or more self-interference cancelation procedures that was performed for at least a subset of the set of self-interference measurements, wherein the configuration is received based at least in part on the indication of the self-interference cancelation procedure that was performed.

8. The method of claim 6 , further comprising:

identifying that at least one self-interference measurement of the set of self-interference measurements satisfies a self-interference threshold, wherein transmitting the measurement report is based at least in part on identifying that the at least one self-interference measurement satisfies the self-interference threshold.

9. The method of claim 6 , further comprising:

receiving, from the control node, a reporting configuration for transmitting measurement reports associated with self-interference at the first wireless node, wherein the measurement report is transmitted in accordance with the reporting configuration.

10. The method of claim 6 , further comprising:

receiving, from the control node, a request for the measurement report, wherein the measurement report is transmitted in response to the request.

11. The method of claim 6 , further comprising:

transmitting, to the control node in the measurement report, a first subset of self-interference measurements of the set of self-interference measurements performed during a first portion of the time interval in which a self-interference cancelation procedure of the set of self-interference cancelation procedures was performed; and

transmitting, to the control node in the measurement report, a second subset of self-interference measurements of the set of self-interference measurements performed during a second portion of the time interval in which no self-interference cancelation procedures were performed, wherein the configuration is received based at least in part on the first subset of self-interference measurements, the second subset of self-interference measurements, or both.

12. The method of claim 6 , wherein the set of self-interference measurements comprise a received signal strength indicator, a reference signal received power, a reference signal received quality, a signal-to-interference-plus-noise ratio, a channel quality indicator, or any combination thereof.

13. The method of claim 1 , further comprising:

transmitting, to the control node based at least in part on communicating according to the received configuration, a request to disable the self-interference cancelation procedure associated with the configuration, to selectively modify one or more parameters of the self-interference cancelation procedure associated with the configuration, to perform a different self-interference cancelation procedure, or any combination thereof;

receiving a second configuration at least in part in response to the transmitted request; and

communicating according to the second configuration.

14. The method of claim 1 , wherein the first wireless node comprises a user equipment (UE) or a mobile termination node of an integrated access and backhaul network, and wherein the control node comprises a base station, a donor unit of the integrated access and backhaul network, or a central unit of the integrated access and backhaul network.

15. A method for wireless communication at a control node, comprising:

receiving, from a first wireless node, an indication of a capability of the first wireless node to perform one or more self-interference cancelation procedures between a first antenna array of the first wireless node and a second antenna array of the first wireless node; and

transmitting, to the first wireless node in response to the indication of the capability, a configuration for the first wireless node to use to perform a self-interference cancelation procedure of the one or more self-interference cancelation procedures for full duplex communications.

16. The method of claim 15 , further comprising:

receiving, from the first wireless node, an indication of a capability of the first wireless node to enable or disable the one or more self-interference cancelation procedures, wherein the configuration is further based at least in part on the capability to enable or disable the one or more self-interference cancelation procedures.

17. The method of claim 15 , further comprising:

receiving, from the first wireless node, a set of parameters associated with the one or more self-interference cancelation procedures, wherein the configuration indicates values for at least a subset of the set of parameters.

18. The method of claim 15 , wherein the indication of the capability is received in radio resource control signaling or F1 application protocol interface signaling.

19. The method of claim 15 , further comprising:

receiving, from the first wireless node, a measurement report comprising an indication of a set of self-interference measurements, wherein the configuration is transmitted based at least in part on the measurement report.

20. The method of claim 19 , further comprising:

receiving, in the measurement report, an indication of a self-interference cancelation procedure of the one or more self-interference cancelation procedures that was performed for at least a subset of the set of self-interference measurements, wherein the configuration is transmitted based at least in part on the indication of the self-interference cancelation procedure that was performed.

21. The method of claim 19 , further comprising:

transmitting, to the first wireless node, a reporting configuration for transmitting measurement reports associated with self-interference at the first wireless node, or both, wherein the measurement report is received in accordance with the reporting configuration.

22. The method of claim 19 , further comprising:

transmitting, to the first wireless node, a request for the measurement report, wherein the measurement report is received in response to the request.

23. The method of claim 19 , further comprising:

receiving, from the first wireless node in the measurement report, a first subset of self-interference measurements of the set of self-interference measurements performed during a first portion of the time interval in which a self-interference cancelation procedure of the set of self-interference cancelation procedures was performed; and

receiving, from the first wireless node via the measurement report, a second subset of self-interference measurements of the set of self-interference measurements performed during a second portion of the time interval in which no self-interference cancelation procedures were performed, wherein the configuration is transmitted based at least in part on the first subset of self-interference measurements, the second subset of self-interference measurements, or both.

24. The method of claim 19 , wherein the set of self-interference measurements comprise a received signal strength indicator, a reference signal received power, a reference signal received quality, a signal-to-interference-plus-noise ratio, a channel quality indicator, or any combination thereof.

25. The method of claim 15 , further comprising:

receiving, from the first wireless node based at least in part on communicating according to the received configuration, a request to disable the self-interference cancelation procedure associated with the configuration, to selectively modify one or more parameters of the self-interference cancelation procedure associated with the configuration, to perform a different self-interference cancelation procedure, or any combination thereof;

transmitting a second configuration at least in part in response to the received request; and

communicating with the first wireless node according to the second configuration.

26. The method of claim 15 , wherein

the first wireless node comprises a user equipment (UE), or a mobile termination node of an integrated access and backhaul network, and

the control node comprises a base station, a donor unit of the integrated access and backhaul network, or a central unit of the integrated access and backhaul network.

27. An apparatus for wireless communication at a first wireless node, comprising:

a processor;

memory coupled with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

transmit, to a control node, an indication of a capability of the first wireless node to perform one or more self-interference cancelation procedures between a first antenna array of the first wireless node and a second antenna array of the first wireless node;

receive, from the control node in response to the indication of the capability, a configuration for the first wireless node to use to perform a self-interference cancelation procedure of the one or more self-interference cancelation procedures for full-duplex communications; and

communicate, according to the received configuration, with the control node, a second wireless node, or any combination thereof, using the first antenna array and the second antenna array.

28. The apparatus of claim 27 , wherein the instructions to communicate according to the received configuration are executable by the processor to cause the apparatus to:

transmit one or more signals via the first antenna array for a time interval;

receive the one or more signals via the second antenna array for the time interval; and

perform the self-interference cancelation procedure on the one or more signals received via the second antenna array.

29. An apparatus for wireless communication at a control node, comprising:

a processor;

memory coupled with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

receive, from a first wireless node, an indication of a capability of the first wireless node to perform one or more self-interference cancelation procedures between a first antenna array of the first wireless node and a second antenna array of the first wireless node; and

transmit, to the first wireless node in response to the indication of the capability, a configuration for the first wireless node to use to perform a self-interference cancelation procedure of the one or more self-interference cancelation procedures for full duplex communications.

30. The apparatus of claim 29 , wherein the instructions are further executable by the processor to cause the apparatus to:

receive, from the first wireless node, an indication of a capability of the first wireless node to enable or disable the one or more self-interference cancelation procedures, wherein the configuration is further based at least in part on the capability to enable or disable the one or more self-interference cancelation procedures.