Determining a resource for a channel state information report
Apparatuses, methods, and systems are disclosed for determining a resource for a channel state information report. One method ( 600 ) includes receiving ( 602 ), from a transmitter device, a channel state information reference signal within a data region and a channel state information request indicator in sidelink control information. The method ( 600 ) includes determining ( 604 ), at a receiver device, a resource for transmitting a channel state information report in response to the channel state information request indicator using a mode 1 resource allocation procedure, a mode 2 resource allocation procedure, or a combination thereof. The method ( 600 ) includes transmitting ( 606 ), from the receiver device, the channel state information report via a medium access control control element using the resource.
1. A method of a user equipment (UE), the method comprising:
receiving sidelink control information (SCI) comprising a channel state information (CSI) request associated with a CSI reference signal (CSI-RS);
determining a triggering of a sidelink CSI reporting for a pair of a source identifier (ID) and a destination identifier (ID);
determining a resource allocation procedure for the sidelink CSI report, the resource allocation procedure comprising a mode 1 resource allocation procedure or a mode 2 resource allocation procedure;
generating a medium access control-control element (MAC-CE) for the sidelink CSI report based at least in part on the resource allocation procedure; and
transmitting the sidelink CSI report via the MAC-CE based at least in part on one or more of the CSI request, or the resource allocation procedure, or the triggering of the sidelink CSI reporting.
2. The method of claim 1 , wherein the sidelink CSI report comprises a channel quality indicator (CQI) and a rank indicator (RI).
3. The method of claim 1 , further comprising:
determining a latency bound packet delay budget associated with the sidelink CSI report or a priority report,
wherein transmitting the sidelink CSI report is based at least in part on the latency bound packet delay budget associated with the sidelink CSI report or a priority associated with the sidelink CSI report.
4. The method of claim 3 , further comprising:
starting a sidelink CSI report timer based at least in part on the triggering of the sidelink CSI reporting,
wherein a duration of the sidelink CSI report timer is configured based at least in part on the latency bound packet delay budget.
5. The method of claim 3 , further comprising:
performing logical channel prioritization transmitting the sidelink CSI report according to one or more of the latency bound packet delay budget associated with the sidelink CSI report or the priority associated with the sidelink CSI report.
6. The method of claim 4 , further comprising:
stopping the sidelink CSI report timer; and
canceling the sidelink CSI reporting.
7. The method of claim 4 , further comprising:
canceling triggered sidelink CSI reporting, based at least in part on the latency bound packet delay budget being satisfied prior to transmitting of the sidelink CSI report, after expiration of the sidelink CSI report timer.
8. The method of claim 1 , wherein transmitting the sidelink CSI report comprises:
transmitting the sidelink CSI report on a physical sidelink shared channel (PSSCH),
wherein the SCI includes an indication of a priority associated with the sidelink CSI report.
9. The method of claim 1 , wherein the mode 1 resource allocation procedure corresponds to one or more separate scheduling request (SR) resources configured for requesting resources for the sidelink CSI report.
10. The method of claim 1 , wherein the mode 2 resource allocation procedure corresponds to a resource reselection being triggered to determine the resource allocation procedure according to a latency bound packet delay budget and a priority value associated with the sidelink CSI report.
11. The method of claim 1 , wherein the SCI indicates whether sidelink hybrid automatic repeat request (HARQ) feedback is enabled or disabled.
12. The method of claim 1 , wherein a packet delay budget value corresponds to the MAC-CE.
13. The method of claim 1 , further comprising defining a sidelink CSI report timer associated with the sidelink CSI report, wherein a value of the sidelink CSI report timer is based on a latency bound packet delay budget.
14. The method of claim 13 , further comprising starting the sidelink CSI report timer based on the sidelink CSI reporting.
15. A user equipment (UE), comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the UE to:
receive sidelink control information (SCI) comprising a channel state information (CSI) request associated with a channel state information reference signal (CSI-RS);
determine a triggering of a sidelink CSI reporting for a pair of a source identifier (ID) and a destination identifier (ID);
determine a resource allocation procedure for the sidelink CSI report, the resource allocation procedure comprising a mode 1 resource allocation procedure, or a mode 2 resource allocation procedure;
generate a medium access control-control element (MAC-CE) for the sidelink CSI report based at least in part on the resource allocation procedure; and
transmit the sidelink CSI report via the MAC-CE based at least in part on one or more of the CSI request, the resource allocation procedure, or the triggering of the sidelink CSI reporting.
16. The UE of claim 15 , wherein the at least one processor is configured to cause the UE to:
determine a latency bound packet delay budget associated with the sidelink CSI report or a priority associated with the sidelink CSI report.
17. The UE of claim 15 , wherein the mode 1 resource allocation procedure corresponds to one or more separate scheduling request (SR) resources configured for requesting resources for the sidelink CSI report.
18. The UE of claim 15 , wherein the mode 2 resource allocation procedure corresponds to a resource reselection being triggered to determine the resource allocation procedure according to a latency bound packet delay budget and a priority value associated with the-sidelink CSI report.
19. A method of a base station, the method comprising:
transmitting a configuration for sidelink channel state information (CSI) reporting,
wherein the sidelink CSI reporting is for a pair of a source identifier (ID) and a destination identifier (ID),
wherein the sidelink CSI reporting is based at least in part on a resource allocation procedure comprising a mode 1 resource allocation procedure or a mode 2 resource allocation procedure,
wherein the mode 2 resource allocation procedure corresponds to a trigger for resource reselection, and
wherein the resource allocation procedure is determined according to a latency bound packet delay budget and a priority value associated with the sidelink CSI reporting.
20. A base station for wireless communication, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the base station to:
transmit a configuration for sidelink channel state information (CSI) reporting,
wherein the sidelink CSI reporting is for a pair of a source identifier (ID) and a destination identifier (ID),
wherein the sidelink CSI reporting is based at least in part on a resource allocation procedure comprising a mode 1 resource allocation procedure or a mode 2 resource allocation procedure,
wherein the mode 2 resource allocation procedure corresponds to a trigger for resource reselection, and
wherein the resource allocation procedure is determined according to a latency bound packet delay budget and a priority value associated with the sidelink CSI reporting.