Sidelink channel state information (CSI) reporting from a user equipment

A method of wireless communication performed by a receive (Rx) user equipment (UE), comprising:

• receiving, in a first downlink control information (DCI) 3_0 and from a network node, an uplink grant associated with enabling reporting of a particular channel state information (CSI) report, associated with a transmit (Tx) UE, directly to the network node via the uplink grant;
• receiving, in a second DCI 3_0 and from the Tx UE, sidelink control information (SCI) comprising the uplink grant for the particular CSI report to be transmitted to the TX UE via the uplink grant in a payload of the SCI;
• identifying, based at least in part on a destination identifier included in the uplink grant of at least one of the first DCI 3_0 or the second DCI 3_0, the particular CSI report of a plurality of CSI reports, associated with a plurality of Tx UEs including the Tx UE, stored at the Rx UE;
• and
• transmitting, directly to the network node and based at least in part on receiving the uplink grant and the SCI and identifying the particular CSI report, the particular CSI report,
• wherein the particular CSI report is transmitted directly to the network node via a scheduling request procedure based at least in part on whether any uplink grant is available for the Rx UE to transmit the particular CSI report to the network node.

A transmit (Tx) user equipment (UE) for wireless communication, comprising:

• one or more memories;
• and
• one or more processors coupled to the one or more memories, the one or more processors configured to:
• receive, in a first downlink control information (DCI) 3_0 from a network node, an uplink grant associated with enabling reporting of a particular channel state information (CSI) report, associated with a receive (Rx) UE, to the network node,
• wherein the uplink grant indicates a destination identifier, associated with the Tx UE, indicating the particular CSI report;
• transmit, to the Rx UE and based at least in part on the first DCI 3_0, a request, for the particular CSI report, indicating the destination identifier;
• receive, from the Rx UE and based at least in part on transmitting the request, the particular CSI report;
• add, based at least in part on receiving the particular CSI report, a receiver identifier, identifying the Rx UE, to the particular CSI report;
• and
• transmit, to the network node and based on adding the receiver identifier to the particular CSI report, the particular CSI report,
• wherein the particular CSI report is transmitted to the network node via a scheduling request procedure based at least in part on whether any uplink grant is available for the Tx UE to transmit the particular CSI report to the network node.

A receive (Rx) user equipment (UE) for wireless communication, comprising:

• one or more memories;
• and
• one or more processors coupled to the one or more memories, the one or more processors configured to:
• receive, in a first downlink control information (DCI) 3_0 and from a network node, an uplink grant associated with enabling reporting of a particular channel state information (CSI) report, associated with a transmit (Tx) UE, directly to the network node via the uplink grant;
• receive, in a second DCI 3_0 and from the Tx UE, sidelink control information (SCI) comprising the uplink grant for the particular CSI report to be transmitted to the TX UE via the uplink grant in a payload of the SCI;
• identify, based at least in part on a destination identifier included in the uplink grant of at least one of the first DCI 3_0 or the second DCI 3_0, the particular CSI report of a plurality of CSI reports, associated with a plurality of Tx UEs including the Tx UE, stored at the Rx UE;
• and
• transmit, directly to the network node and based at least in part on receiving the uplink grant and the SCI and identifying the particular CSI report, the particular CSI report,
• wherein the particular CSI report is transmitted directly to the network node via a scheduling request procedure based at least in part on whether any uplink grant is available for the Rx UE to transmit the particular CSI report to the network node.