Techniques of reporting multiple CSI reports on PUSCH
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 receives, from a base station, a trigger for reporting M CSI reports. M is an integer greater than 0. The UE determines a wait time period from a reference point to a time point at which N CSI reports of the M CSI reports are to be transmitted. N is an integer greater than 0 and smaller than or equal to M. The UE determines N respective processing time periods for updating the N CSI reports. The UE determines a maximum processing time period that is the largest among the N respective processing time periods. The UE further determines whether to update the N CSI reports based on the maximum processing time period and the wait time period.
1. A method of wireless communication of a user equipment (UE), comprising:
receiving, from a base station, a trigger for reporting channel state information (CSI) reports;
determining a wait time period at which the CSI reports are to be transmitted;
determining respective processing time periods for generating the CSI reports prior to the generation of the CSI reports; and
generating the CSI reports when the largest one of the respective processing time periods
is smaller than or equal to the wait time period.
2. The method of claim 1 , wherein the trigger indicates a delay time period for delaying transmitting the CSI reports, wherein the wait time period is determined based on the delay time period and a timing advance of the UE.
3. The method of claim 1 , wherein a reference time point to determine the wait time period is the end of a last symbol period of symbol periods carrying the trigger or reference signals to be measured for generating the CSI reports.
4. The method of claim 3 , further comprising:
transmitting the CSI reports to the base station on an up-link channel after the wait time period from the reference time point.
5. 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:
receive, from a base station, a trigger for reporting channel state information (CSI) reports;
determine a wait time period at which the CSI reports are to be transmitted;
determine respective processing time periods for generating the CSI reports prior to the generation of the CSI reports; and
generating the CSI reports when the largest gone of the respective processing time periods is smaller than or equal to the wait time period.
6. The apparatus of claim 5 , wherein the trigger indicates a delay time period for delaying transmitting the CSI reports, wherein the wait time period is determined based on the delay time period and a timing advance of the UE.
7. The apparatus of claim 5 , wherein thea reference time point for determining the wait time period is the end of a last symbol period of symbol periods carrying the trigger or reference signals to be measured for generating the CSI reports.
8. The apparatus of claim 7 , wherein the at least one processor is further configured to:
transmit the CSI reports to the base station on an up-link channel after the wait time period from the reference time point.
9. A method of wireless communication of a user equipment (UE), comprising:
receiving, from a base station, a trigger for reporting M channel state information (CSI) reports, M being an integer greater than 0;
determining a wait time period which N CSI reports of the M CSI reports are to be transmitted, N being an integer greater than 0 and smaller than or equal to M;
determining N respective processing time periods for generating the N CSI reports prior to generating the N CSI reports;
determining a maximum processing time period that is the largest among the N respective processing time periods;
determining whether to update the N CSI reports based on the maximum processing time period and the wait time period prior to generating the N CSI reports; and
refraining from generating and transmitting at least one of the N CSI reports when the maximum processing time period is greater than the wait time period.
10. The method of claim 9 , wherein the trigger indicates a delay time period for delaying transmitting the N CSI reports, wherein the wait time period is determined based on the delay time period and a timing advance of the UE.
11. The method of claim 9 , wherein a reference time point is the end of a last symbol period of symbol periods carrying the trigger.
12. The method of claim 9 , wherein the reference time point is the end of a last symbol period of symbol periods carrying reference signals to be measured for generating the N CSI reports.
13. The method of claim 9 , further comprising:
generating the N CSI reports when the maximum processing time period is smaller than or equal to the wait time period.
14. The method of claim 13 , further comprising:
transmitting the N CSI reports to the base station on an up-link channel after the wait time period from the reference time point.