Self-interference measurement for full duplex autonomous sidelink communication

1 . A method of wireless communication at a user equipment (UE), comprising:

transmitting, in a first transmission occasion, sidelink control information (SCI) indicating a resource reservation for a self-interference measurement in a second transmission occasion, wherein the resource reservation indicates at least a time-domain resource reservation associated with the second transmission occasion;

transmitting a signal, in the second transmission occasion using a first set of frequency resources; and

performing the self-interference measurement based on the signal using at least a portion of resources indicated in the resource reservation, wherein the portion comprises a second set of frequency resources different from the first set of frequency resources.

2 . The method of claim 1 , wherein the first transmission occasion corresponds to a first slot, and the second transmission occasion corresponds to a second slot.

3 . The method of claim 1 , wherein the UE transmits the signal using a first transmission reception point (TRP) and performs the self-interference measurement at a second TRP different from the first TRP.

4 . The method of claim 1 , wherein the UE transmits the signal using at least a first antenna element and performs the self-interference measurement using at least a second antenna element different from the first antenna element.

5 . The method of claim 1 , wherein the resource reservation in the SCI indicates the resources for transmission of the signal in the second transmission occasion.

6 . The method of claim 5 , wherein the resource reservation in the SCI further indicates additional resources in the second transmission occasion that are different from the resources for the transmission of the signal.

7 . The method of claim 5 , wherein the resource reservation in the SCI indicates frequency resources spanning a frequency range associated with the second transmission occasion.

8 . The method of claim 1 , wherein the SCI further indicates a first beam direction, and wherein the UE transmits the signal in the first beam direction.

9 . The method of claim 8 , wherein the first beam direction is indicated by a transmission configuration indicator (TCI) state comprised in the SCI.

10 . The method of claim 1 , wherein the UE transmits the signal in a first beam direction, and the UE performs the self-interference measurement based on a second beam direction.

11 . The method of claim 10 , wherein the UE transmits the SCI in the first beam direction and the second beam direction.

12 . The method of claim 11 , wherein the UE transmits the SCI in a first message in the first beam direction and in a second message in the second beam direction, wherein at least the second message indicates the second beam direction associated with the self-interference measurement.

13 . The method of claim 12 , wherein the second message reserves resources in the second beam direction for the self-interference measurement.

14 . The method of claim 12 , wherein the UE transmits the second message in the first transmission occasion.

15 . The method of claim 12 , wherein the UE transmits the second message in a different transmission occasion than the first transmission occasion.

16 . The method of claim 10 , wherein the SCI comprises an indication of the first beam direction and the second beam direction.

17 . The method of claim 16 , wherein the second beam direction is indicated by a transmission configuration indicator (TCI) state comprised in the SCI.

18 . The method of claim 10 , wherein the UE transmits the SCI in the first transmission occasion on a wider beam than a first beam.

19 . The method of claim 1 , wherein the first set of frequency resources comprise a first frequency range that at least partially overlaps with a second frequency range of the second set of frequency resources.

20 . The method of claim 19 , wherein the second frequency range spans an entire bandwidth of a sidelink frequency pool.

21 . The method of claim 1 , wherein the signal comprises a reference signal, and the self-interference measurement is based on a reference signal received power (RSRP) measurement.

22 . The method of claim 1 , wherein the self-interference measurement is based on a received signal strength indicator (RSSI) measurement of the signal.

23 . An apparatus for wireless communication of a user equipment (UE), comprising:

memory; and

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

transmit, in a first transmission occasion, sidelink control information (SCI) indicating a resource reservation for a self-interference measurement in a second transmission occasion, wherein the resource reservation indicates at least a time-domain resource reservation associated with the second transmission occasion;

transmit a signal, in the second transmission occasion based on a first set of frequency resources; and

perform the self-interference measurement based on the signal using at least a portion of resources indicated in the resource reservation, wherein the portion comprises a second set of frequency resources different from the first set of frequency resources.

24 . The apparatus of claim 23 , wherein the first set of frequency resources comprise a first frequency range that at least partially overlaps with a second frequency range of the second set of frequency resources.

25 . A method of wireless communication at a first user equipment (UE), comprising:

receiving, in a first transmission occasion, sidelink control information (SCI) from a second UE indicating a resource reservation for a self-interference measurement in a second transmission occasion, wherein the resource reservation indicates at least a time-domain resource reservation associated with the second transmission occasion; and

excluding resources indicated in the resource reservation from candidate resources for a sidelink transmission by the first UE, wherein the sidelink transmission is based on a first set of frequency resources, wherein the self-interference measurement is based on a second set of frequency resources, and wherein the first set of frequency resources is different from the second set of frequency resources.

26 . The method of claim 25 , wherein the resource reservation is for transmission of a signal by the second UE in a first beam direction for the self-interference measurement by the second UE based on a second beam direction.

27 . The method of claim 26 , wherein the first UE receives the SCI from the first beam direction.

28 . The method of claim 26 , wherein the first UE receives the SCI from the second beam direction.

29 . The method of claim 26 , wherein the SCI reserves resources in the second beam direction for the self-interference measurement.

30 . An apparatus for wireless communication at a first user equipment (UE), comprising:

memory; and

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

receive, in a first transmission occasion, sidelink control information (SCI) from a second UE indicating a resource reservation for a self-interference measurement in a second transmission occasion, wherein the resource reservation indicates at least a time-domain resource reservation associated with the second transmission occasion; and

exclude resources indicated in the resource reservation from candidate resources for a sidelink transmission by the first UE, wherein the sidelink transmission is based on a first set of frequency resources, wherein the self-interference measurement is based on a second set of frequency resources, and wherein the first set of frequency resources is different from the second set of frequency resources.