Aperiodic csi-rs resource set triggering by dci with aperiodic triggering offset

A non-transitory computer-readable storage medium that stores instructions for execution by processing circuitry of a generation node B (gNB), wherein for aperiodic channel state information reference signal (CSI-RS) triggering and transmission, the processing circuitry is configured to:

• encode signalling for transmission to a user equipment (UE), the signalling to indicate an aperiodic Triggering Offset (aperiodicTriggeringOffset), the aperiodic Triggering Offset comprising a slot offset;
• encode a downlink control information (DCI) for transmission, the DCI to trigger transmission of a CSI-RS in one or more aperiodic CSI-RS resource set(s),
• wherein the DCI triggers transmission of the CSI-RS within a triggered slot with the slot offset;
• and
• configure the gNB to transmit the CSI-RS in resource elements of the triggered slot in accordance with the slot offset, when CSI-RS resources are available in the slot at the slot offset,
• wherein the processing circuitry is to postpone transmission of the CSI-RS to a first available downlink slot when the CSI-RS resources are not available in the triggered slot at the slot offset.

An apparatus for a user equipment (UE), the apparatus comprising:

• processing circuitry;
• and memory, wherein the UE is configured for aperiodic channel state information reference signal (CSI-RS) triggering and transmission by a generation Node B (gNB), the processing circuitry is configured to:
• decode signalling from the gNB, the signalling indicating an aperiodic Triggering Offset (aperiodicTriggeringOffset), the aperiodic Triggering Offset comprising a slot offset;
• decode a downlink control information (DCI) from the gNB, the DCI to trigger transmission of a CST-RS in one or more aperiodic CST-RS resource set(s), wherein the DCI triggers transmission of the CSI-RS within a triggered slot with the slot offset;
• and
• receive the CSI-RS in resource elements of the triggered slot in accordance with the slot offset, when CSI-RS resources are available in the slot at the slot offset,
• wherein transmission of the CSI-RS is postponed to a first available downlink slot when the CSI-RS resources are not available in the triggered slot at the slot offset.