Techniques for triggering csi report based on downlink grant signaling

An apparatus for wireless communications, comprising:

• at least one processor;
• and memory coupled with the at least one processor, the memory including instructions executable by the at least one processor to cause the apparatus to:
• receive, at a user equipment (UE), a first scheduling grant message from a base station during a first time period, wherein the first scheduling grant message is a downlink grant that includes a first channel state information (CSI) trigger indication for the UE;
• receive, at the UE, a second scheduling grant message from the base station during a second time period, wherein the second scheduling grant message includes a second CSI trigger indication for the UE that is same as the first CSI trigger indication included in the first scheduling grant message;
• generate a CSI report based on receiving one or both of the first scheduling grant message or the second scheduling grant message;
• and
• transmit the CSI report from the UE to the base station on a physical uplink control channel (PUCCH), wherein the UE is restricted from transmitting more than one CSI report in a single transmission opportunity.

A method for wireless communications, comprising:

• transmitting a first scheduling grant message from a base station to a user equipment (UE) during a first time period, wherein the first scheduling grant message is a downlink grant that includes a first channel state information (CSI) trigger indication for the UE;
• generating, at the base station, a second scheduling grant message that includes a second CSI trigger indication that is identical to the first CSI trigger indication transmitted in the first scheduling grant message, wherein the second scheduling grant message is one of a second downlink grant message or an uplink grant message;
• transmitting the second scheduling grant message, from the base station, to the UE during a second time period;
• and
• receiving, at the base station, a CSI report from the UE in response to transmission of the first scheduling grant message and the second scheduling grant message, wherein the base station receives no more than a single CSI report during a single transmission opportunity from the UE.

An apparatus for wireless communications, comprising:

• at least one processor;
• and memory coupled with the at least one processor, the memory including instructions executable by the at least one processor to cause the apparatus to:
• transmit a first scheduling grant message from a base station to a user equipment (UE) during a first time period, wherein the first scheduling grant message is a downlink grant that includes a first channel state information (CSI) trigger indication for the UE;
• generate, at the base station, a second scheduling grant message that includes a second CSI trigger indication that is identical to the first CSI trigger indication transmitted in the first scheduling grant message, wherein the second scheduling grant message is one of a second downlink grant message or an uplink grant message;
• transmit the second scheduling grant message, from the base station, to the UE during a second time period;
• and
• receive, at the base station, a CSI report from the UE in response to transmission of the first scheduling grant message and the second scheduling grant message, wherein the base station receives a single CSI report during a single transmission opportunity.