Null-forming at bidirectional smart repeaters

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

a memory; and

at least one processor coupled to the memory and configured to:

transmit, to a repeater, a repeater configuration, wherein the repeater configuration configures the repeater to beam shape at least one beam of the repeater to suppress at least one side lobe of the at least one beam, wherein the repeater configuration comprises a null-forming codebook that is utilized with an existing codebook to beam shape the at least one beam of the repeater; and

communicate with the repeater based on the repeater configuration.

2. The apparatus of claim 1 , further comprising a transceiver coupled to the at least one processor.

3. The apparatus of claim 1 , wherein beams associated with the null-forming codebook are spatially quasi co-located (QCL) with beams associated with the existing codebook.

4. The apparatus of claim 3 , wherein each of the beams associated with the null-forming codebook is a reshaped version of an original beam.

5. The apparatus of claim 1 , wherein the at least one processor is further configured to:

receive, from the repeater, information related to the existing codebook of the repeater and associated beam forming capabilities of the repeater.

6. The apparatus of claim 5 , wherein the repeater configuration is configured based on the existing codebook and the associated beam forming capabilities of the repeater.

7. The apparatus of claim 1 , wherein the at least one processor is further configured to:

receive, from the repeater, information related to the null-forming codebook configured at the repeater.

8. The apparatus of claim 1 , wherein the repeater configuration configures the repeater to adopt one or more beam forming configurations.

9. The apparatus of claim 1 , wherein the repeater configuration comprises instructions for adjusting at least one set of phases or amplitudes at one or more antenna elements of the repeater.

10. The apparatus of claim 9 , wherein the instructions for adjusting the at least one set of phases or amplitudes at the one or more antenna elements of the repeater creates different beams at the repeater.

11. The apparatus of claim 1 , wherein the at least one processor is further configured to:

transmit, to the repeater, an indication of an optimal null-forming configuration at the repeater, wherein the optimal null-forming configuration mitigates interference caused by the repeater.

12. The apparatus of claim 1 , wherein the at least one processor is further configured to:

transmit, to the repeater, a direction indication indicating a direction for a beam suppression or a beam focus.

13. The apparatus of claim 12 , wherein the direction indication comprises a suppression indication indicating an amount of suppression for the beam suppression, wherein the amount of suppression is at least one of a relative amount of a side lobe, an absolute value, or a qualitative amount.

14. A method of wireless communication at a control node, comprising:

transmitting, to a repeater, a repeater configuration, wherein the repeater configuration configures the repeater to beam shape at least one beam of the repeater to suppress at least one side lobe of the at least one beam, wherein the repeater configuration comprises a null-forming codebook that is utilized with an existing codebook to beam shape the at least one beam of the repeater; and

communicating with the repeater based on the repeater configuration.

15. An apparatus for wireless communication at a repeater, comprising:

a memory; and

at least one processor coupled to the memory and configured to:

receive, from a control node, a repeater configuration, wherein the repeater configuration configures the repeater to beam shape at least one beam of the repeater to suppress at least one side lobe of the at least one beam;

beam shape the at least one side lobe of the at least one beam of the repeater based on the repeater configuration, wherein the repeater configuration comprises a null-forming codebook that is utilized with an existing codebook to beam shape the at least one beam of the repeater; and

communicate with the control node or a wireless device via the at least one beam.

16. The apparatus of claim 15 , further comprising a transceiver coupled to the at least one processor.

17. The apparatus of claim 15 , wherein beams associated with the null-forming codebook are spatially quasi co-located (QCL) with beams associated with the existing codebook.

18. The apparatus of claim 17 , wherein each of the beams associated with the null-forming codebook is a reshaped version of an original beam.

19. The apparatus of claim 15 , wherein the at least one processor is further configured to:

transmit, to the control node, information related to the existing codebook and associated beam forming capabilities of the repeater.

20. The apparatus of claim 19 , wherein the repeater configuration is configured based on the existing codebook and the associated beam forming capabilities of the repeater.

21. The apparatus of claim 15 , wherein the at least one processor is further configured to:

transmit, to the control node, information related to the null-forming codebook configured at the repeater.

22. The apparatus of claim 15 , wherein the repeater configuration configures the repeater to adopt one or more beam forming configurations.

23. The apparatus of claim 15 , wherein the repeater configuration comprises instructions for adjusting at least one set of phases or amplitudes at one or more antenna elements of the repeater.

24. The apparatus of claim 23 , wherein the instructions for adjusting the at least one set of phases or amplitudes at the one or more antenna elements of the repeater creates different beams at the repeater.

25. The apparatus of claim 15 , wherein the at least one processor is further configured to:

receive, from the control node, an indication of an optimal null-forming configuration at the repeater, wherein the optimal null-forming configuration mitigates interference caused by the repeater.

26. The apparatus of claim 15 , wherein the at least one processor is further configured to:

receive, from the control node, a direction indication indicating a direction for a beam suppression or a beam focus.

27. The apparatus of claim 26 , wherein the direction indication comprises a suppression indication indicating an amount of suppression for the beam suppression, wherein the amount of suppression is at least one of a relative amount of a side lobe, an absolute value, or a qualitative amount.

28. A method of wireless communication at a repeater, comprising:

receiving, from a control node, a repeater configuration, wherein the repeater configuration configures the repeater to beam shape at least one beam of the repeater to suppress at least one side lobe of the at least one beam;

beam shaping the at least one side lobe of the at least one beam of the repeater based on the repeater configuration, wherein the repeater configuration comprises a null-forming codebook that is utilized with an existing codebook to beam shape the at least one beam of the repeater; and

communicating with the control node or a wireless device via the at least one beam.