New patent application published for: ANTENNA SELECTION WITH SUB-BAND FULL-DUPLEX SYSTEMS

ANTENNA SELECTION WITH SUB-BAND FULL-DUPLEX SYSTEMS

Claims

1. A user equipment (UE), comprising: a processing system that includes one or more processors and one or more code-storing memories coupled with the one or more processors, the processing system configured to cause the UE to: receive multiple channel state information (CSI) metrics that are based at least in part on multiple cross-link interference (CLI) measurements; select a set of antennas for communication based at least in part on the multiple CSI metrics; and communicate a message using the selected set of antennas.
2. The UE of claim 1, wherein the multiple CSI metrics include a downlink channel quality indicator (CQI) or an uplink CQI.
3. The UE of claim 1, wherein the multiple CSI metrics include multiple sets of CSI metrics, and wherein different sets of CSI metrics corresponding to different operating sub-bands.
4. The UE of claim 1, wherein the multiple CSI metrics are differentiated based at least in part on whether the multiple CSI metrics are associated with sub-band full duplex (SBFD) symbols or associated with non-SBFD symbols.
5. The UE of claim 1, wherein the multiple CSI metrics include signal-to-noise ratio (SNR) values or signal strength values for uplink and downlink sub-bands.
6. The UE of claim 1, wherein the processing system, to cause the UE to select the set of antennas, is configured to cause the UE to select the set of antennas from a total number of available antennas, and wherein the total number of available antennas is based at least in part on power consumption metrics at the UE.
7. The UE of claim 1, wherein the processing system, to cause the UE to select the set of antennas, is configured to cause the UE to select a first set of antennas for uplink and a second set of antennas for downlink.
8. The UE of claim 1, wherein the multiple CSI metrics include a modulation and coding scheme estimate or a channel quality indicator estimate for uplink sub-bands.
9. The UE of claim 1, wherein the processing system is configured to cause the UE to adjust transmission parameters based at least in part on the multiple CSI metrics.
10. The UE of claim 1, wherein the multiple CSI metrics include channel impulse response vector estimates.
11. The UE of claim 1, wherein the processing system is configured to cause the UE to transmit a sounding reference signal.
12. The UE of claim 1, wherein the multiple CSI metrics include information about a difference between uplink sub-bands and downlink sub-bands and CLI information, and wherein the processing system is configured to estimate a downlink channel quality indicator (CQI) or a downlink modulation and coding scheme (MCS) based at least in part on an uplink CQI, an uplink MCS, a difference in sub-band characteristic information, and CLI information.
13. A network entity, comprising: a processing system that includes one or more processors and one or more code-storing memories coupled with the one or more processors, the processing system configured to cause the network entity to: measure cross-link interference (CLI) based at least in part on reception of a reference signal on a first sub-band, during transmission of a message on a second sub-band as part of sub-band full-duplex (SBFD) operation; and transmit multiple channel state information (CSI) metrics that are based at least in part on measured CLI.
14. The network entity of claim 13, wherein the processing system is configured to cause the network entity to estimate a downlink channel quality indicator (CQI) based at least in part on the measured CLI, and wherein the multiple CSI metrics include an indication of the downlink CQI or an uplink CQI.
15. The network entity of claim 13, wherein the processing system is configured to cause the network entity to estimate a modulation and coding scheme (MCS) based at least in part on the measured CLI, and wherein the multiple CSI metrics include an indication of the MCS.
16. The network entity of claim 13, wherein the multiple CSI metrics include multiple sets of CSI metrics for uplink, each set of CSI metrics corresponding to a respective operating sub-band.
17. The network entity of claim 13, wherein the multiple CSI metrics include signal-to-noise ratio (SNR) values or signal strength values for uplink and downlink sub-bands.
18. The network entity of claim 13, wherein the processing system, to cause the network entity to transmit the multiple CSI metrics, is configured to cause the network entity to transmit the multiple CSI metrics based at least in part on whether the multiple CSI metrics are associated with SBFD symbols or non-SBFD symbols.
19. The network entity of claim 13, wherein the processing system is configured to cause the network entity to transmit feedback indicating a suppression level of the CLI, and wherein the suppression level of the CLI is based at least in part on a complexity or downlink scheduling of the network entity.
20. The network entity of claim 13, wherein the multiple CSI metrics include a CSI metric for the first sub-band and a CSI metric for the second sub-band.