Sidelink reception with multiple transmission reception points

1 . A method for wireless communications at a first user equipment (UE), comprising:

receiving an indication of an interference measurement configuration indicating resources allocated for sidelink interference measurements across multiple transmission reception points;

receiving a first signal from a second UE using a first transmission reception point of the first UE and a second signal from the second UE using a second transmission reception point of the first UE;

measuring a first sidelink interference for the first signal and a second sidelink interference for the second signal based at least in part on the interference measurement configuration;

comparing the first sidelink interference and the second sidelink interference to a sidelink interference threshold; and

processing the first signal and the second signal in combination over the first transmission reception point and the second transmission reception point or separately across the first transmission reception point and the second transmission reception point based at least in part on the comparing.

2 . The method of claim 1 , further comprising:

identifying the resources allocated for the sidelink interference measurements based at least in part on an index indicated by the interference measurement configuration, wherein the index indicates a resource pattern from a plurality of configured resource patterns.

3 . The method of claim 1 , further comprising:

determining the resources allocated for the sidelink interference measurements based at least in part on a formula, wherein the interference measurement configuration indicates that the resources allocated for the sidelink interference measurements have been allocated.

4 . The method of claim 1 , further comprising:

identifying the resources allocated for the sidelink interference measurements as randomly punctured resources based at least in part on a bit map indicated by the interference measurement configuration.

5 . The method of claim 1 , wherein measuring the first sidelink interference and the second sidelink interference comprises:

receiving sidelink control information from the second UE, the sidelink control information comprising the interference measurement configuration; and

measuring received signal strength of the first signal and the second signal over the resources allocated for the sidelink interference measurements.

6 . The method of claim 1 , wherein processing the first signal and the second signal comprises:

determining the first sidelink interference and the second sidelink interference is less than or equal to the sidelink interference threshold; and

decoding the first signal and the second signal in combination over the first transmission reception point and the second transmission reception point based at least in part on determining the first sidelink interference and the second sidelink interference is less than or equal to the sidelink interference threshold.

7 . The method of claim 6 , further comprising:

measuring the first sidelink interference and the second sidelink interference based at least in part on an energy per resource element, a received signal strength indicator, or both corresponding to the first signal and the second signal.

8 . The method of claim 1 , wherein processing the first signal and the second signal comprises:

determining the first sidelink interference or the second sidelink interference is greater than the sidelink interference threshold; and

decoding the first signal and the second signal separately across the first transmission reception point and the second transmission reception point based at least in part on determining the first sidelink interference or the second sidelink interference is greater than the sidelink interference threshold.

9 . The method of claim 1 , further comprising:

performing an interference cancelation operation based at least in part on the first sidelink interference and the second sidelink interference.

10 . The method of claim 9 , wherein the interference cancelation operation comprises:

determining one or more reference signals associated with the first signal are non-orthogonal to one or more reference signals associated with the second signal; and

offsetting a non-orthogonality between the one or more reference signals associated with the first signal and the one or more reference signals associated with the second signal, wherein the offsetting is based at least in part on the first sidelink interference and the second sidelink interference.

11 . The method of claim 1 , wherein the first signal and the second signal are associated with a broadcast transmission, a multicast transmission, or any combination thereof.

12 . The method of claim 1 , wherein the resources allocated for the sidelink interference measurements comprise zero-power interference measurement resources.

13 . A method for wireless communications at a user equipment (UE), comprising:

configuring resources allocated for sidelink interference measurements across multiple transmission reception points;

determining an interference measurement configuration for indicating the configured resources allocated for the sidelink interference measurements across multiple transmission reception points;

determining a level of network congestion exceeds a congestion threshold; and

transmitting, via a sidelink communication, an indication of the interference measurement configuration based at least in part on determining the level of network congestion exceeds the congestion threshold.

14 . The method of claim 13 , wherein determining the interference measurement configuration comprises:

selecting a resource pattern from a plurality of configured resource patterns, wherein the interference measurement configuration comprises an index indicating the selected resource pattern.

15 . The method of claim 13 , wherein determining the interference measurement configuration comprises:

determining the configured resources allocated for the sidelink interference measurements based at least in part on a formula, wherein the interference measurement configuration indicates that the configured resources allocated for the sidelink interference measurements have been allocated.

16 . The method of claim 13 , wherein determining the interference measurement configuration comprises:

puncturing one or more resource elements with the configured resources allocated for sidelink measurements, wherein the interference measurement configuration comprises a bit map indicating the configured resources allocated for sidelink measurements.

17 . The method of claim 13 , further comprising:

identifying a presence of a UE having a plurality of transmission reception points, wherein transmitting the indication of the interference measurement configuration is based at least in part on identifying the presence of the UE having the plurality of transmission reception points.

18 . The method of claim 17 , wherein identifying the presence of the UE having the plurality of transmission reception points comprises:

receiving control signaling indicating a capability of the UE having the plurality of transmission reception points.

19 . The method of claim 17 , wherein identifying the presence of the UE having the plurality of transmission reception points comprises:

receiving control signaling comprising an indication of additional resources allocated for the sidelink interference measurements.

20 . The method of claim 13 , wherein the configured resources allocated for the sidelink interference measurements comprise zero-power interference measurement resources.

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

one or more processors,

one or more memories coupled with the one or more processors; and

instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to:

receive an indication of an interference measurement configuration indicating resources allocated for sidelink interference measurements across multiple transmission reception points;

receive a first signal from a second UE using a first transmission reception point of the first UE and a second signal from the second UE using a second transmission reception point of the first UE;

measure a first sidelink interference for the first signal and a second sidelink interference for the second signal based at least in part on the interference measurement configuration;

compare the first sidelink interference and the second sidelink interference to a sidelink interference threshold; and

process the first signal and the second signal in combination over the first transmission reception point and the second transmission reception point or separately across the first transmission reception point and the second transmission reception point based at least in part on the comparing.

22 . The apparatus of claim 21 , wherein the instructions are further executable by the one or more processors to cause the apparatus to:

identify the resources allocated for the sidelink interference measurements based at least in part on an index indicated by the interference measurement configuration, wherein the index indicates a resource pattern from a plurality of configured resource patterns.

23 . The apparatus of claim 21 , wherein the instructions are further executable by the one or more processors to cause the apparatus to:

determine the resources allocated for the sidelink interference measurements based at least in part on a formula, wherein the interference measurement configuration indicates that the resources allocated for the sidelink interference measurements have been allocated.

24 . The apparatus of claim 21 , wherein the instructions are further executable by the one or more processors to cause the apparatus to:

identify the resources allocated for the sidelink interference measurements as randomly punctured resources based at least in part on a bit map indicated by the interference measurement configuration.

25 . The apparatus of claim 21 , wherein the instructions to measure the first sidelink interference and the second sidelink interference are executable by the one or more processors to cause the apparatus to:

receive sidelink control information from the second UE, the sidelink control information comprising the interference measurement configuration; and

measure received signal strength of the first signal and the second signal over the resources allocated for the sidelink interference measurements.

26 . The apparatus of claim 21 , wherein the instructions to process the first signal and the second signal are executable by the one or more processors to cause the apparatus to:

determine the first sidelink interference and the second sidelink interference is less than or equal to the sidelink interference threshold; and

decode the first signal and the second signal in combination over the first transmission reception point and the second transmission reception point based at least in part on determining the first sidelink interference and the second sidelink interference is less than or equal to the sidelink interference threshold.

27 . The apparatus of claim 26 , wherein the instructions are further executable by the one or more processors to cause the apparatus to:

measure the first sidelink interference and the second sidelink interference based at least in part on an energy per resource element, a received signal strength indicator, or both corresponding to the first signal and the second signal.

28 . The apparatus of claim 21 , wherein the instructions to process the first signal and the second signal are executable by the one or more processors to cause the apparatus to:

determine the first sidelink interference or the second sidelink interference is greater than the sidelink interference threshold; and

decode the first signal and the second signal separately across the first transmission reception point and the second transmission reception point based at least in part on determining the first sidelink interference or the second sidelink interference is greater than the sidelink interference threshold.

29 . The apparatus of claim 21 , wherein the instructions are further executable by the one or more processors to cause the apparatus to:

perform an interference cancelation operation based at least in part on the first sidelink interference and the second sidelink interference.

30 . The apparatus of claim 29 , wherein the interference cancelation operation comprises:

determine one or more reference signals associated with the first signal are non-orthogonal to one or more reference signals associated with the second signal; and

offset a non-orthogonality between the one or more reference signals associated with the first signal and the one or more reference signals associated with the second signal, wherein the offsetting is based at least in part on the first sidelink interference and the second sidelink interference.

31 . The apparatus of claim 21 , wherein the first signal and the second signal are associated with a broadcast transmission, a multicast transmission, or any combination thereof.

32 . The apparatus of claim 21 , wherein the resources allocated for the sidelink interference measurements comprise zero-power interference measurement resources.

33 . An apparatus for wireless communications at a user equipment (UE), comprising:

one or more processors,

one or more memories coupled with the one or more processors; and

instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to:

configure resources allocated for sidelink interference measurements across multiple transmission reception points;

determine an interference measurement configuration for indicating the configured resources allocated for the sidelink interference measurements across multiple transmission reception points;

determine a level of network congestion exceeds a congestion threshold; and

transmit, via a sidelink communication, an indication of the interference measurement configuration based at least in part on determining the level of network congestion exceeds the congestion threshold.

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

means for receiving an indication of an interference measurement configuration indicating resources allocated for sidelink interference measurements across multiple transmission reception points;

means for receiving a first signal from a second UE using a first transmission reception point of the first UE and a second signal from the second UE using a second transmission reception point of the first UE;

means for measuring a first sidelink interference for the first signal and a second sidelink interference for the second signal based at least in part on the interference measurement configuration;

means for comparing the first sidelink interference and the second sidelink interference to a sidelink interference threshold; and

means for processing the first signal and the second signal in combination over the first transmission reception point and the second transmission reception point or separately across the first transmission reception point and the second transmission reception point based at least in part on the comparing.