Reporting overall interference
An interference metric at a specific time instance may differ from interference metrics at different time instances. As a result, any actions based on the interference metric may unduly be influenced by such difference. In some implementations, an apparatus or device reports an overall interference metric that accounts for temporal variations in interference metrics at different time instances. An example method includes measuring, by a user equipment, an interference metric at two or more time instances for wireless signals transmitted by a base station, generating an overall interference metric based on the interference metrics at the two or more time instances, and transmitting, by the user equipment, the overall interference metric to the base station.
1. A method performed by a user equipment (UE), comprising:
measuring interference metrics at two or more antennas of the UE;
generating an overall interference metric based on the interference metrics at the two or more antennas, wherein the overall interference metric is based on temporal variations in the interference metrics measured at the two or more antennas;
receiving interference reporting parameters comprising a parameter for determining the overall interference metric; and
transmitting, based on the interference reporting parameters, the overall interference metric to a base station.
2. The method of claim 1 , wherein the interference metrics, at the two or more antennas, include one or more of:
a channel quality indicator (CQI);
a signal to interference plus noise ratio (SINR);
a signal to noise ratio (SNR); or
instantaneous channel state information (CSI).
3. The method of claim 1 , wherein an interference metric, of the interference metrics at the two or more antennas, is measured based on one or more interference measurement resources (IMR) for the UE as defined by the Third Generation Partnership Project (3GPP) set of standards.
4. The method of claim 1 , wherein an interference metric, of the interference metrics at the two or more antennas, is based on a cross-link interference received signal strength indicator (CLI-RSSI) at two or more time instances.
5. The method of claim 1 , wherein measuring the interference metrics includes periodically measuring an interference metric, of the interference metrics at the two or more antennas, during a time window.
6. The method of claim 5 , further comprising:
receiving an indication of a length of the time window from the base station; and
configuring the length of the time window based on the indication.
7. The method of claim 6 , wherein the indication is received via a radio resource control (RRC) configuration message.
8. The method of claim 5 , further comprising periodically reporting the overall interference metric to the base station,
wherein a length of the time window is based on a periodicity of reporting the overall interference metric.
9. The method of claim 1 , further comprising receiving one or more of a downlink control information (DCI) or a media access control (MAC) control element (CE) from the base station, wherein generating the overall interference metric or transmitting the overall interference metric to the base station is based on one or more of the DCI or the MAC CE.
10. The method of claim 1 , wherein generating the overall interference metric includes averaging the interference metrics measured at the two or more antennas.
11. The method of claim 1 , wherein one or more of a modulation and coding scheme (MCS) or a transmission scheduling for the UE is adjusted based on transmitting the overall interference metric to the base station.
12. An apparatus for wireless communication, comprising:
at least one memory; and
at least one processor configured to:
measure interference metrics at two or more antennas of the apparatus;
generate an overall interference metric based on the interference metrics at the two or more antennas, wherein the overall interference metric is based on temporal variations in the interference metrics measured at the two or more antennas;
receive interference reporting parameters comprising a parameter for determining the overall interference metric; and
transmit, based on the interference reporting parameters, the overall interference metric to a base station.
13. The apparatus of claim 12 , wherein the interference metrics, at the two or more antennas, include one or more of:
a channel quality indicator (CQI);
a signal to interference plus noise ratio (SINR);
a signal to noise ratio (SNR); or
instantaneous channel state information (CSI).
14. The apparatus of claim 12 , wherein an interference metric, of the interference metrics at the two or more antennas, is measured based on one or more interference measurement resources (IMR) for the apparatus as defined by the Third Generation Partnership Project (3GPP) set of standards.
15. The apparatus of claim 12 , wherein an interference metric, of the interference metrics at the two or more antennas, is based on a cross-link interference received signal strength indicator (CLI-RSSI) at two or more time instances.
16. The apparatus of claim 12 , wherein the at least one processor, when measuring the interference metrics, are configured to: periodically measure an interference metric, of the interference metrics at the two or more antennas, during a time window.
17. The apparatus of claim 16 , wherein the at least one processor is further configured to:
receive an indication of a length of the time window from the base station; and
configure the length of the time window based on the indication.
18. The apparatus of claim 17 , wherein the indication is received via a radio resource control (RRC) configuration message.
19. The apparatus of claim 16 , wherein the at least one processor is further configured to periodically report the overall interference metric to the base station, and
wherein a length of the time window is based on a periodicity of reporting the overall interference metric.
20. The apparatus of claim 12 , wherein the at least one processor is further configured to receive one or more of a downlink control information (DCI) or a media access control (MAC) control element (CE) from the base station, and
wherein the overall interference metric is generated or the overall interference metric is transmitted to the base station based on one or more of the DCI or the MAC CE.
21. The apparatus of claim 13 , wherein the at least one processer, when generating the overall interference metric, is configured to average the interference metrics at the two or more antennas.
22. The apparatus of claim 12 , wherein one or more of a modulation and coding scheme (MCS) or a transmission scheduling for the apparatus is adjusted based on transmitting the overall interference metric to the base station.
23. A non-transitory computer-readable medium storing instructions that, when executed by at least one processor of a user equipment (UE), cause the UE to:
measure interference metrics at two or more antennas of the UE;
generate an overall interference metric based on the interference metrics at the two or more antennas, wherein the overall interference metric is based on temporal variations in the interference metrics measured at the two or more antennas;
transmit, based on the interference reporting parameters, the overall interference metric to a base station.
24. The non-transitory computer-readable medium of claim 23 , wherein the interference metrics, at the two or more antennas, include one or more of:
a channel quality indicator (CQI);
a signal to interference plus noise ratio (SINR);
a signal to noise ratio (SNR); or
instantaneous channel state information (CSI).
25. The non-transitory computer-readable medium of claim 23 , wherein an interference metric, of the interference metrics at the two or more antennas, is measured based on one or more interference measurement resources (IMR) for the UE as defined by the Third Generation Partnership Project (3GPP) set of standards.
26. The non-transitory computer-readable medium of claim 23 , wherein an interference metric, of the interference metrics at the two or more antennas, is based on a cross-link interference received signal strength indicator (CLI-RSSI) at two or more time instances.
27. The non-transitory computer-readable medium of claim 23 , wherein an interference metric, of the interference metrics at the two or more antennas, is measured periodically during a time window.
28. The non-transitory computer-readable medium of claim 27 , wherein the instructions further cause the UE to:
receive an indication of a length of the time window via a radio resource control (RRC) configuration message from the base station; and
configure the length of the time window based on the indication.
29. A user equipment (UE) for wireless communication, comprising:
means for measuring interference metrics at two or more antennas of the UE;
means for generating an overall interference metric based on the interference metrics at the two or more antennas, wherein the overall interference metric is based on temporal variations in the interference metrics measured at the two or more antennas;
means for receiving interference reporting parameters comprising a parameter for determining the overall interference metric; and
means for transmitting, based on the interference reporting parameters, the overall interference metric to a base station.
30. The apparatus of claim 12 , wherein the interference metrics at the two or more antennas are further measured at two or more time instances, wherein the interference reporting parameters indicate specific antennas of the two or more antennas for generating the overall interference metric.