Techniques for cross-channel interference measurement in wireless communications
Aspects described herein relate to determining and/or scheduling resources for devices in view of cross-channel interference measured between the devices. In an aspect, a first user equipment (UE) can determine a signal measurement of a signal transmitted by a second UE in a first channel, determine, based at least in part on the signal measurement, a cross-channel interference parameter of interference experienced by the first UE, and transmit, to a serving base station that serves the first UE, an indication of the cross-channel interference parameter. In another aspect, a base station can determine a cross-channel interference parameter of interference experienced by a first UE in at least a first channel, based on a signal transmitted by a second UE in a second channel, and can schedule communications for the first UE based at least in part on the cross-channel interference parameter.
1. A method for wireless communication, comprising:
receiving, by a first user equipment (UE) and from a serving base station that serves the first UE, a request for the first UE to measure a signal transmitted by a second UE in a first channel for cross-channel interference measurement;
determining, by the first UE, a signal measurement of the signal transmitted by the second UE in the first channel for cross-channel interference measurement;
determining, based at least in part on the signal measurement, a cross-channel interference parameter of interference experienced by the first UE in at least a second channel that is within a frequency span of the first channel, wherein the second channel is a sidelink channel, and where the second channel is different from the first channel; and
transmitting, by the first UE and to the serving base station that serves the first UE, an indication of the cross-channel interference parameter.
2. The method of claim 1 , wherein determining the cross-channel interference parameter is based at least in part on applying a first radiation emission mask specified for the second UE to the signal measurement.
3. The method of claim 1 , wherein the signal measurement corresponds to measuring the signal in the second channel, and determining the cross-channel interference parameter is based on the signal measurement in the second channel.
4. The method of claim 1 , wherein determining the cross-channel interference parameter is further based on determining that the first channel is adjacent in frequency to the second channel.
5. The method of claim 4 , wherein determining that the first channel is adjacent in frequency to the second channel includes determining that the first channel is associated with a first physical resource block (PRB) that is adjacent in frequency to a second PRB associated with the second channel.
6. A method for wireless communication, comprising:
transmitting, to a first user equipment (UE) and from a base station that serves the first UE, a request for the first UE to measure a signal transmitted by a second UE in a second channel for cross-channel interference measurement;
determining a cross-channel interference parameter of interference experienced by the first UE in at least a first sidelink channel, based on the signal transmitted by the second UE in the second channel for cross-channel interference measurement, wherein the second channel is within a frequency span of the first sidelink channel, and wherein the second channel is different from the first sidelink channel; and
scheduling, by a base station, communications for the first UE based at least in part on the cross-channel interference parameter.
7. The method of claim 6 , further comprising receiving, by the base station and from the first UE, a signal measurement of the signal transmitted by the second UE in the second channel, wherein determining the cross-channel interference parameter is based at least in part on the signal measurement.
8. The method of claim 6 , wherein determining the cross-channel interference parameter comprises receiving the cross-channel interference parameter from the first UE.
9. The method of claim 6 , wherein scheduling communications for the first UE comprises refraining from scheduling communications for the first UE over resources in a time domain during which the second UE is scheduled to transmit communications over the second channel.
10. The method of claim 6 , further comprising:
scheduling communications for the first UE over the first sidelink channel in first resources that are in a period of time in a time domain; and
refraining from scheduling, based on the cross-channel interference parameter, the second UE for communications over the second channel in second resources that are in the period of time in the time domain.
11. The method of claim 6 , wherein determining the cross-channel interference parameter is further based on determining that the first sidelink channel is adjacent in frequency to the second channel.
12. The method of claim 7 , wherein determining the cross-channel interference parameter is based at least in part on applying a first radiation emission mask specified for the second UE to the signal measurement.
13. The method of claim 7 , wherein the signal measurement corresponds to measuring the signal in the first sidelink channel, and wherein determining the cross-channel interference parameter is based on the signal measurement in the first sidelink channel.
14. The method of claim 7 , wherein determining the cross-channel interference parameter further comprises determining, based at least in part on the signal measurement, a second cross-channel interference parameter of interference experienced by the first UE in at least a third channel that is also adjacent in frequency to the second channel and does not include the first sidelink channel, wherein scheduling communications for the first UE is further based at least in part on the second cross-channel interference parameter.
15. The method of claim 11 , wherein determining that the first sidelink channel is adjacent in frequency to the second channel includes determining that the first sidelink channel is associated with a first physical resource block (PRB) that is adjacent in frequency to a second PRB associated with the second channel.
16. The method of claim 14 , wherein determining the second cross-channel interference parameter is based at least in part on applying a radiation emission mask specified for the second UE to the signal measurement.
17. The method of claim 14 , wherein the signal measurement corresponds to measuring the signal in the third channel, and determining the second cross-channel interference parameter is based on the signal measurement in the third channel.
18. An apparatus for wireless communication, comprising:
a transceiver;
a memory configured to store instructions; and
one or more processors communicatively coupled with the memory and the transceiver, wherein the one or more processors are configured to:
receive, from a serving base station that serves the apparatus, a request for the apparatus to measure a signal transmitted by a device in a first channel for cross-channel interference measurement;
determine a signal measurement of the signal transmitted by the device in the first channel for cross-channel interference measurement;
determine, based at least in part on the signal measurement, a cross-channel interference parameter of interference experienced by the apparatus in at least a second channel that is within a frequency span of the first channel, wherein the second channel is a sidelink channel, and wherein the second channel is different from the first channel; and
transmit, to the serving base station that serves the apparatus, an indication of the cross-channel interference parameter.
19. The apparatus of claim 18 , wherein the one or more processors are configured to determine the cross-channel interference parameter based at least in part on applying a first radiation emission mask specified for the device to the signal measurement.
20. The apparatus of claim 18 , wherein the signal measurement corresponds to measuring the signal in the second channel, and wherein the one or more processors are configured to determine the cross-channel interference parameter based on the signal measurement in the second channel.
21. The apparatus of claim 18 , wherein the one or more processors are configured to determine the cross-channel interference parameter further based on determining that the first channel is adjacent in frequency to the second channel.
22. The apparatus of claim 21 , wherein the one or more processors are configured to determine that the first channel is adjacent in frequency to the second channel at least in part by determining that the first channel is associated with a first physical resource block (PRB) that is adjacent in frequency to a second PRB associated with the second channel.
23. An apparatus for wireless communication, comprising:
a transceiver;
a memory configured to store instructions; and
one or more processors communicatively coupled with the memory and the transceiver, wherein the one or more processors are configured to:
transmitting, to a first user equipment (UE) served by the apparatus, a request for the first UE to measure a signal transmitted by a second UE in a second channel for cross-channel interference measurement;
determine a cross-channel interference parameter of interference experienced by the first UE in at least a first sidelink channel, based on the signal transmitted by the second UE in the second channel for cross-channel interference measurement, wherein the second channel is within a frequency span of the first sidelink channel, and wherein the second channel is different from the first sidelink channel; and
schedule communications for the first UE based at least in part on the cross-channel interference parameter.
24. The apparatus of claim 23 , wherein the one or more processors are further configured to receive, from the first UE, a signal measurement of the signal transmitted by the second UE in the second channel, wherein the one or more processors are configured to determine the cross-channel interference parameter based at least in part on the signal measurement.
25. The apparatus of claim 23 , wherein the one or more processors are configured to determine the cross-channel interference parameter at least in part by receiving the cross-channel interference parameter from the first UE.
26. The apparatus of claim 23 , wherein the one or more processors are configured to schedule communications for the first UE at least in part by refraining from scheduling communications for the first UE over resources in a time domain during which the second UE is scheduled to transmit communications over the second channel.
27. The apparatus of claim 24 , wherein the one or more processors are configured to determine the cross-channel interference parameter based at least in part on applying a first radiation emission mask specified for the second UE to the signal measurement.
28. The apparatus of claim 24 , wherein the signal measurement corresponds to measuring the signal in the first sidelink channel, and wherein the one or more processors are configured to determine the cross-channel interference parameter based on the signal measurement in the first sidelink channel.
29. The apparatus of claim 24 , wherein the one or more processors are configured to determine the cross-channel interference parameter at least in part by determining, based at least in part on the signal measurement, a second cross-channel interference parameter of interference experienced by the first UE in at least a third channel that is also adjacent in frequency to the second channel and does not include the first sidelink channel, wherein the one or more processors are configured to schedule communications for the first UE further based at least in part on the second cross-channel interference parameter.
30. The apparatus of claim 29 , wherein the one or more processors are configured to determine the second cross-channel interference parameter based at least in part on applying a radiation emission mask specified for the second UE to the signal measurement.