CSI reporting for channel part and interference part separately
In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE measures a first set of reference signals to determine a first channel state of a first channel between a first TRP and the UE. The UE measures interference received at the UE. The UE sends a first CSI report generated corresponding to the first channel state. The UE sends a second CSI report generated corresponding to the interference.
1. A method of wireless communication of a user equipment (UE), comprising:
measuring, at a first time point, a first set of reference signals for determining a first channel state of a first channel between a first transmission and reception point (TRP) and the UE;
obtaining, based on the measurements, a first channel response of the first time point without an impact of interference received at the UE;
measuring, at a second time point subsequent to the first time point, the interference received at the UE;
sending, according to a first periodicity, a first channel state information (CSI) report generated corresponding to the first channel state, wherein the first CSI report includes the first channel response; and
sending, according to a second periodicity, a second CSI report generated dedicated to reporting the interference of the second time point, wherein the second CSI report is separate from the first CSI report, wherein the first periodicity is longer than the second periodicity, wherein a second channel state of the first channel at the second time point is determined based on (a) a predicated second channel response without the impact of the interference, of the second time point, generated by a time domain predication model utilizing the first channel response and (b) the interference of the second time point.
2. The method of claim 1 , wherein the first channel state is associated with a set of CSI parameters, the method further comprising:
determining values of the set of CSI parameters based on the measurements of the first set of reference signals; and
including indications of values of the set of CSI parameters in the first CSI report.
3. The method of claim 1 , wherein the second CSI report includes an indication of a power of the interference or an indication of a covariance of the interference.
4. The method of claim 1 , further comprising:
measuring a second set of reference signals to determine a second channel state of a second channel between a second TRP and the UE without consideration of transmission on the first channel and the interference received at the UE; and
sending a third CSI report generated corresponding to the second channel state.
5. The method of claim 4 , wherein the second channel state is associated with a set of CSI parameters,
the method further comprising:
determining values of the set of CSI parameters based on the measurements of the second set of reference signals; and
including indications of values of the set of CSI parameters in the third CSI report.
6. The method of claim 4 , wherein the measuring the interference includes:
determining a resource element for interference measurement; and
measuring a signal power or a covariance at the resource element.
7. An apparatus for wireless communication, the apparatus being a user equipment (UE), comprising:
a memory; and
at least one processor coupled to the memory and configured to:
measure, at a first time point, a first set of reference signals for determining a first channel state of a first channel between a first transmission and reception point (TRP) and the UE;
obtain, based on the measurements, a first channel response of the first time point without an impact of interference received at the UE;
measure, at a second time point subsequent to the first time point, the interference received at the UE;
send, according to a first periodicity, a first channel state information (CSI) report generated corresponding to the first channel state, wherein the first CSI report includes the first channel response; and
send, according to a second periodicity, a second CSI report generated dedicated to reporting the interference of the second time point, wherein the second CSI report is separate from the first CSI report, wherein the first periodicity is longer than the second periodicity, wherein a second channel state of the first channel at the second time point is determined based on (a) a predicated second channel response without the impact of the interference, of the second time point, generated by a time domain predication model utilizing the first channel response and (b) the interference of the second time point.
8. The apparatus of claim 7 , wherein the first channel state is associated with a set of CSI parameters, wherein the at least one processor is further configured to:
determine values of the set of CSI parameters based on the measurements of the first set of reference signals; and
include indications of values of the set of CSI parameters in the first CSI report.
9. The apparatus of claim 7 , wherein the second CSI report includes an indication of a power of the interference or an indication of a covariance of the interference.
10. The apparatus of claim 7 , wherein the at least one processor is further configured to:
measure a second set of reference signals to determine a second channel state of a second channel between a second TRP and the UE without consideration of transmission on the first channel and the interference received at the UE; and
send a third CSI report generated corresponding to the second channel state.
11. The apparatus of claim 10 , wherein the second channel state is associated with a set of CSI parameters, wherein the at least one processor is further configured to:
determine values of the set of CSI parameters based on the measurements of the second set of reference signals; and
include indications of values of the set of CSI parameters in the third CSI report.
12. The apparatus of claim 10 , wherein to measure the interference, the at least one processor is further configured to:
determine a resource element for interference measurement; and
measure a signal power or a covariance at the resource element.
13. A non-transitory computer-readable medium storing computer executable code for wireless communication of a user equipment (UE), comprising code to:
measure, at a first time point, a first set of reference signals for determining a first channel state of a first channel between a first transmission and reception point (TRP) and the UE;
obtain, based on the measurements, a first channel response of the first time point without an impact of interference received at the UE;
measure, at a second time point subsequent to the first time point, the interference received at the UE;
send, according to a first periodicity, a first channel state information (CSI) report generated corresponding to the first channel state, wherein the first CSI report includes the first channel response; and
send, according to a second periodicity, a second CSI report generated dedicated to reporting the interference of the second time point, wherein the second CSI report is separate from the first CSI report, wherein the first periodicity is longer than the second periodicity, wherein a second channel state of the first channel at the second time point is determined based on (a) a predicated second channel response without the impact of the interference, of the second time point, generated by a time domain predication model utilizing the first channel response and (b) the interference of the second time point.
14. The non-transitory computer-readable medium of claim 13 , wherein the first channel state is associated with a set of CSI parameters, wherein the code is further configured to:
determine values of the set of CSI parameters based on the measurements of the first set of reference signals; and
include indications of values of the set of CSI parameters in the first CSI report.