Channel estimate or interference reporting in a wireless communications network
Certain aspects of the present disclosure provide techniques for wireless communications by a user equipment (UE), including receiving, from a network entity, an indication to report at least one of a channel quality indicator (CQI) or a pre-coding matrix indicator (PMI) for one or more future communications resources and sending, to the network entity, a channel state feedback (CSF) report indicating at least one of a predicted CQI or a predicted PMI for the one or more future communications resources prior to the one or more future communications resources occurring in time.
1. An apparatus for wireless communications at a user equipment (UE), comprising:
one or more memories comprising instructions; and
one or more processors configured to execute the instructions and cause the apparatus to:
receive, from a network entity, an indication to report at least one of a channel quality indicator (CQI) or a pre-coding matrix indicator (PMI) for one or more future communications resources, wherein the one or more future communications resources are within a maximum number of resources, as per capability information of the UE, relative to transmission of the indication from the network entity for which the UE is capable of predicting the COI or the PMI;
transmit, to the network entity, a channel state feedback (CSF) report indicating at least one of a predicted CQI or a predicted PMI for the one or more future communications resources prior to the one or more future communications resources occurring in time; and
receive, from the network entity, scheduling information scheduling the UE to communicate on at least one of the one or more future communications resources associated with a lower interference than other future communications resources based on the CSF report.
2. The apparatus of claim 1 , wherein the indication is received in one of a radio resource control (RRC) message, a medium access control (MAC) control element (CE), or a downlink control information (DCI).
3. The apparatus of claim 1 , wherein the one or more future communications resources comprise one or more time and frequency resources, and wherein the indication comprises a configuration of the one or more time and frequency resources.
4. The apparatus of claim 3 , wherein the configuration comprises a time window for the one or more future communications resources.
5. The apparatus of claim 4 , wherein a start of the time window is defined relative to a last slot or symbol of a measurement or reporting occasion.
6. The apparatus of claim 3 , wherein the configuration comprises a frequency range for the one or more future communications resources.
7. The apparatus of claim 1 , wherein the CSF report indicating the at least one of the predicted CQI or the predicted PMI indicates a separate value for the at least one of the predicted CQI or the predicted PMI for each of the one or more future communications resources.
8. The apparatus of claim 1 , wherein the CSF report indicating the at least one of the predicted CQI or the predicted PMI indicates a single value for the at least one of the predicted CQI or the predicted PMI that corresponds to all of the one or more future communications resources.
9. The apparatus of claim 8 , wherein the CSF report further indicates a delta value for at least one of the one or more future communications resources, the delta value along with the single value corresponding to the at least one of the one or more future communications resources.
10. The apparatus of claim 1 , wherein the one or more processors are configured to execute the instructions and cause the apparatus to:
transmit, to the network entity, the capability information of the UE indicating the UE is capable of predicting interference on future communications resources.
11. The apparatus of claim 10 , wherein the capability information comprises a maximum future time for which the UE is capable of predicting interference.
12. The apparatus of claim 1 , wherein the one or more future communications resources comprise one or more beams.
13. The apparatus of claim 12 , wherein the indication comprises a configuration of a quasi-co-location (QCL) of a transmit beam of the network entity or a configuration of a receive beam of the UE to be used for predicting interference.
14. The apparatus of claim 1 , wherein the one or more processors are configured to execute the instructions and cause the apparatus to:
transmit, to the network entity, a message indicating a recommended configuration of a quasi-co-location (QCL) of a transmit beam of the network entity or a configuration of a receive beam of the UE to be used for predicting interference.
15. The apparatus of claim 1 , wherein the CSF report is transmitted based on the receiving the indication.
16. The apparatus of claim 1 , wherein the one or more processors are configured to execute the instructions and cause the apparatus to predict interference for the one or more future communications resources, wherein the at least one of the predicted CQI or the predicted PMI is based on the predicting the interference.
17. An apparatus for wireless communications at a network entity, comprising:
one or more memories comprising instructions; and
one or more processors configured to execute the instructions and cause the apparatus to:
transmit, to a user equipment (UE), an indication to report at least one of a channel quality indicator (CQI) or a pre-coding matrix indicator (PMI) for one or more future communications resources, wherein the one or more future communications resources are within a maximum future number of resources, as per capability information of the UE, relative to transmission of the indication from the network entity for which the UE is capable of predicting the COI or the PMI;
receive, from the UE, a channel state feedback (CSF) report indicating at least one of a predicted CQI or a predicted PMI for the one or more future communications resources prior to the one or more future communications resources occurring in time; and
transmit, to the UE, scheduling information scheduling the UE to communicate on at least one of the one or more future communications resources associated with a lower interference than other future communications resources based on the CSF report.
18. The apparatus of claim 17 , wherein the indication is transmitted in one of a radio resource control (RRC) message, a medium access control (MAC) control element (CE), or a downlink control information (DCI).
19. The apparatus of claim 17 , wherein the one or more future communications resources comprise one or more time and frequency resources, and wherein the indication comprises a configuration of the one or more time and frequency resources.
20. The apparatus of claim 19 , wherein the configuration comprises a time window for the one or more future communications resources.
21. The apparatus of claim 20 , wherein a start of the time window is defined relative to a last slot or symbol of a measurement or reporting occasion.
22. The apparatus of claim 19 , wherein the configuration comprises a frequency range for the one or more future communications resources.
23. The apparatus of claim 17 , wherein the CSF report indicating the at least one of the predicted CQI or the predicted PMI indicates a separate value for the at least one of the predicted CQI or the predicted PMI for each of the one or more future communications resources.
24. The apparatus of claim 17 , wherein the CSF report indicating the at least one of the predicted CQI or the predicted PMI indicates a single value for the at least one of the predicted CQI or the predicted PMI that corresponds to all of the one or more future communications resources.
25. The apparatus of claim 24 , wherein the CSF report further indicates a delta value for at least one of the one or more future communications resources, the delta value along with the single value corresponding to the at least one of the one or more future communications resources.
26. The apparatus of claim 17 , wherein the one or more future communications resources comprise one or more beams.
27. The apparatus of claim 26 , wherein the indication comprises a configuration of a quasi-co-location (QCL) of a transmit beam of the network entity or a configuration of a receive beam of the UE to be used for predicting interference.
28. The apparatus of claim 17 , wherein the one or more processors are configured to execute the instructions and cause the apparatus to:
receive, from the UE, a message indicating a recommended configuration of a quasi-co-location (QCL) of a transmit beam of the network entity or a configuration of a receive beam of the UE to be used for predicting interference.
29. A method for wireless communications at a user equipment (UE), comprising:
receiving, from a network entity, an indication to report at least one of a channel quality indicator (CQI) or a pre-coding matrix indicator (PMI) for one or more future communications resources, wherein the one or more future communications resources are within a maximum future number of resources, as per capability information of the UE, relative to transmission of the indication from the network entity for which the UE is capable of predicting the CQI or the PMI;
transmitting, to the network entity, a channel state feedback (CSF) report indicating at least one of a predicted CQI or a predicted PMI for the one or more future communications resources prior to the one or more future communications resources occurring in time; and
receiving, from the network entity, scheduling information scheduling the UE to communicate on at least one of the one or more future communications resources associated with a lower interference than other future communications resources based on the CSF report.
30. A method for wireless communications at a network entity, comprising:
transmitting, to a user equipment (UE), an indication to report at least one of a channel quality indicator (CQI) or a pre-coding matrix indicator (PMI) for one or more future communications resources, wherein the one or more future communications resources are within a maximum future number of resources, as per capability information of the UE, relative to transmission of the indication from the network entity for which the UE is capable of predicting the COI or the PMI;
receiving, from the UE, a channel state feedback (CSF) report indicating at least one of a predicted CQI or a predicted PMI for the one or more future communications resources prior to the one or more future communications resources occurring in time; and
transmitting, to the UE, scheduling information scheduling the UE to communicate on at least one of the one or more future communications resources associated with a lower interference than other future communications resources based on the CSF report.