Method and device for determining priority level of CSI report

1. A method for determining a priority level of a channel state information (CSI) report, comprising:

determining, by a user equipment (UE), priority levels of at least two CSI reports based on a reporting content carried in the CSI report, wherein the at least two CSI reports comprise a first CSI report, and the first CSI report carries Layer 1 Signal to Interference Noise Ratio (L1-SINR); and

reporting, by the UE through the first CSI report, N reference signal resource indicators and an L1-SINR corresponding to each of the N reference signal resource indicators, wherein N is a positive integer,

wherein the priority levels of the at least two CSI reports are used to multiplex the at least two CSI reports or drop at least a part of the at least two CSI reports in response to that there is an overlapping part in time domain resources of the at least two CSI reports;

wherein the determining by the UE priority levels of at least two CSI reports based on the reporting content carried in the CSI report comprises:

determining, by the UE, that the priority level of the first CSI report is lower than the priority level of a second CSI report and the priority level of the first CSI report is higher than the priority level of a third CSI report,

wherein the third CSI report carries a layer-1 reference signal received power (L1-RSRP), and the second CSI report carries CSI reporting quantities other than the L1-SINR and the L1-RSRP.

2. The method of claim 1 , wherein the determining by the UE that the priority level of the first CSI report is lower than the priority level of a second CSI report and the priority level of the first CSI report is higher than the priority level of a third CSI report comprises:

determining, by the UE, that a priority value of the first CSI report is higher than a priority value of the second CSI report and the priority value of the first CSI report is lower than a priority value of the third CSI report.

3. The method of claim 2 , wherein the CSI report is associated with a priority value Pri iCSI (y, k, c, s), and the priority value Pri iCSI (y, k, c, s) is determined according to an equation:

Pri iCSI ( y,k,c,s )=2· N cells ·M s ·y+N cells ·M s ·k+M s ·c+s

wherein y=0 for an aperiodic CSI report to be carried on a physical uplink shared channel (PUSCH), y=1 for a semi-persistent CSI report to be carried on the PUSCH, y=2 for a semi-persistent CSI report to be carried on a physical uplink control channel (PUCCH), and y=3 for a periodic CSI report to be carried on the PUCCH;

k=0 for a CSI report which carries the L1-RSRP or the L1-SINR, and k=1 for a CSI report which does not carry the L1-SINR and L1-SINR;

c denotes a serving cell index, and N cells denotes a value of a higher layer parameter maxNrofServingCells, s denotes a report configuration ID reportConfigID, and M s denotes a value of the higher layer parameter maxNrofCSI-ReportConfigurations.

4. The method of claim 1 , wherein in a case of N>1, the reporting an L1-SINR corresponding to each of the N reference signal resource indicators comprises:

reporting an L1-SINR of a first reference signal resource indicator of the N reference signal resource indicators, and a differential L1-SINR of an L1-SINR, in relative to the L1-SINR of the first reference signal resource indicator, of each of N-1 reference signal resource indicators except the first reference signal resource indicator of the N reference signal resource indicators.

5. The method of claim 4 , wherein the L1-SINR of the first reference signal resource indicator has a greatest value among the N reference signal resource indicators.

6. The method of claim 4 , wherein a reported value of the L1-SINR of the first reference signal resource indicator is characterized by M1 bits, and the reported value of the L1-SINR of the first reference signal resource indicator is determined based on a range where a measured quantity value of the L1-SINR of the first reference signal resource indicator is located, M1 is a positive integer.

7. The method of claim 6 , wherein M1 is equal to 7.

8. The method of claim 4 , wherein a reported value of the differential L1-SINR of each of the N-1 reference signal resource indicators is characterized by M2 bits, and the reported value of the differential L1-SINR of the reference signal resource indicator is determined based on a range where a measured quantity value of the differential L1-SINR of the reference signal resource indicator is located, M2 is a positive integer, and

the measured quantity value of the differential L1-SINR of the reference signal resource indicator refers to a difference of the measured quantity value of the L1-SINR of the reference signal resource indicator relative to the measured quantity value of the L1-SINR of the first reference signal resource indicator.

9. The method of claim 8 , wherein M2 is equal to 3 or 5.

10. The method of claim 8 , wherein 1 dB step size is used for the reported value of the differential L1-SINR.

11. A device for determining a priority level of a channel state information (CSI) report, comprising:

a processor; and

a memory configured to store a computer program,

wherein the processor is configured to call and run the computer program stored in the memory to:

determine priority levels of at least two CSI reports based on a reporting content carried in the CSI report, wherein the at least two CSI reports comprise a first CSI report, and the first CSI report carries Layer 1 Signal to Interference Noise Ratio (L1-SINR); and

report N reference signal resource indicators and an L1-SINR corresponding to each of the N reference signal resource indicators, wherein N is a positive integer,

wherein the priority levels of the at least two CSI reports are used to multiplex the at least two CSI reports or drop at least a part of the at least two CSI reports in response to that there is an overlapping part in time domain resources of the at least two CSI reports;

wherein the processor is configured to call and run the computer program stored in the memory to:

determine that the priority level of the first CSI report is lower than the priority level of a second CSI report and the priority level of the first CSI report is higher than the priority level of a third CSI report,

wherein the third CSI report carries a layer-1 reference signal received power (L1-RSRP), and the second CSI report carries CSI reporting quantities other than the L1-SINR and the L1-RSRP.