Sounding reference signal (SRS) reference signal received power (SRS-RSRP) reporting in wireless systems

1 . A first user equipment (UE), comprising:

a transceiver configured to enable wireless communication with a base station and with a second UE in a wireless system; and

a processor communicatively coupled to the transceiver and configured to:

determine a channel state information (CSI) configuration received from the base station, wherein the CSI configuration includes a CSI-ReportConfig parameter configuring a channel measurement resource (CMR) indicating a Sounding Reference Signal (SRS);

receive, based on the CSI configuration, the SRS from the second UE;

measure the SRS to determine an SRS-reference signal received power (SRS-RSRP) measurement;

generate a measurement report having the SRS-RSRP measurement to provide an indication of cross link interference (CLI) between the first UE and the second UE; and

transmit the measurement report to the base station using physical layer (L1).

2 . The first UE of claim 1 , wherein to transmit the measurement report using L1, the processor is configured to transmit the measurement report in an aperiodic manner, in a periodic manner, or in a semi-persistent manner.

3 . The first UE of claim 1 , wherein the CSI configuration further includes a subcarrier spacing (SCS) of the SRS and a serving cell identifier of a serving cell that supports the first UE and the second UE.

4 . The first UE of claim 1 , wherein the CSI configuration includes the CSI-ReportConfig parameter or a CSI-ResourceConfig parameter, and wherein one or multiple of SRS-ResourceSets can be configured by the CSI-ResourceConfig parameter.

5 . The first UE of claim 4 , wherein the CSI configuration further includes a SRS resource set index, and the processor is further configured to:

measure the SRS based on the SRS resource set index to determine the SRS-RSRP measurement,

wherein the measurement report is transmitted in an aperiodic measurement report, in a periodic measurement report, or in a semi-persistent measurement report.

6 . The first UE of claim 4 , wherein the SRS is included in the CMR configured to include a single SRS-resource or a single SRS resource set by the CSI-ResourceConfig parameter included in the CSI configuration.

7 . The first UE of claim 1 , wherein to measure the SRS to determine the SRS-RSRP measurement, the processor is configured to measure a latest SRS among a plurality of SRS that is not later than a CSI reference resource.

8 . The first UE of claim 1 , wherein the measurement report is a standalone report without carrying another reference measurement including: a RI (Rank Indicator), a Channel Quality Information (CQI), a Precoding Matrix Indicator (PMI), a Layer Indicator (LI), a CSI-RS Resource Indicator (CRI), or a synchronization signals (SS) and physical broadcast channel (PBCH) Resource Block Indicator (SSBRI).

9 . The first UE of claim 1 , wherein the CSI configuration further includes an adjustment of reception timing for measuring the SRS.

10 . The first UE of claim 1 , wherein the CSI configuration is received from the base station by a Radio Resource Control (RRC) message, a medium access control-control elements (MAC-CE), or Downlink Control Information (DCI).

11 . The first UE of claim 1 , wherein the CSI configuration further includes a priority among the measurement report, a link adaption (LA)-CSI report, or a beam measurement (BM)-CSI report.

12 . The first UE of claim 1 , wherein the CSI configuration further includes a SRS-RSRP processing time for the first UE to measure the SRS to determine the SRS-RSRP measurement and to transmit the measurement report using L1 to the base station.

13 . The first UE of claim 1 , wherein the processor is further configured to:

report a UE capability of the first UE to the base station to enable the base station to determine the CSI configuration based on the UE capability of the first UE.

14 . The first UE of claim 13 , wherein the UE capability includes a number of CSI Processing Units (CPUs) supported by the first UE supports.

15 . A method for a first user equipment (UE), comprising:

determining a channel state information (CSI) configuration received from a base station in communication with the first UE, wherein the CSI configuration includes a CSI-ReportConfig parameter configuring a channel measurement resource (CMR) indicating a Sounding Reference Signal (SRS);

receiving, based on the CSI configuration, the SRS from a second UE in communication with the first UE;

measuring the SRS to determine an SRS-reference signal received power (SRS-RSRP) measurement;

generating a measurement report having the SRS-RSRP measurement to provide an indication of cross link interference (CLI) between the first UE and the second UE; and

transmitting the measurement report to the base station using physical layer (L1).

16 . The method of claim 15 , wherein the CSI configuration further includes a subcarrier spacing (SCS) of the SRS and a serving cell identifier a cell that supports the first UE and the second UE.

17 . The method of claim 15 , wherein the measurement report is a standalone report without carrying an other reference measurement including: a RI (Rank Indicator), a Channel Quality Information (CQI), a Precoding Matrix Indicator (PMI), a Layer Indicator (LI), a CSI-RS Resource Indicator (CRI), or a synchronization signals (SS) and physical broadcast channel (PBCH) Resource Block Indicator (SSBRI).

18 . The method of claim 15 , wherein:

the CSI configuration further includes an adjustment of reception timing for measuring the SRS;

the CSI configuration is received from the base station by a Radio Resource Control (RRC) message, a medium access control-control elements (MAC-CE), or Downlink Control Information (DCI);

the CSI configuration further includes a priority among the measurement report, a link adaption (LA)-CSI report, or a beam measurement (BM)-CSI report; and

the CSI configuration includes the CSI-ReportConfig parameter or a CSI-ResourceConfig parameter, and wherein one or multiple of SRS-ResourceSets can be configured by the CSI-ResourceConfig parameter.

19 . A non-transitory computer-readable medium storing instructions that, when executed by a processor of a first user equipment (UE), cause the first UE to perform operations, the operations comprising:

determining a channel state information (CSI) configuration received from a base station in communication with the first UE, wherein the CSI configuration includes a CSI-ReportConfig parameter configuring a channel measurement resource (CMR) indicating a Sounding Reference Signal (SRS);

receiving, based on the CSI configuration, the CMR including the SRS from a second UE in communication with the first UE;

measuring the SRS to determine an SRS-reference signal received power (SRS-RSRP) measurement;

generating a measurement report having the SRS-RSRP measurement to provide an indication of cross link interference (CLI) between the first UE and the second UE; and

transmitting the measurement report to the base station using physical layer (L1).

20 . The non-transitory computer-readable medium of claim 19 , wherein:

the CSI configuration further includes an adjustment of reception timing for measuring the SRS;

the CSI configuration is received from the base station by a Radio Resource Control (RRC) message, a medium access control-control elements (MAC-CE), or Downlink Control Information (DCI);

the CSI configuration further includes a priority among the measurement report, a link adaption (LA)-CSI report, or a beam measurement (BM)-CSI report; and

the CSI configuration includes the CSI-ReportConfig parameter or a CSI-ResourceConfig parameter, and wherein one or multiple of SRS-ResourceSets can be configured by the CSI-ResourceConfig parameter.