Signaling of UE intra/inter-panel beam switch latency

A method for wireless communications by a second device, comprising:

• receiving, from a first device, a first indication of first device's capability associated with beam switch latency, wherein the first indication includes a first beam switch latency;
• transmitting, from the second device to the first device, a second indication triggering communication of one or more reference signals, wherein the second indication comprises a downlink control information (DCI), and the one or more reference signals comprise one or more aperiodic channel state information reference signals (A-CSI-RSs);
• and
• transmitting, from the second device to the first device, the one or more reference signals after transmitting the second indication, wherein a delay between transmitting the second indication and the one or more reference signals is based on the first beam switch latency, wherein the first beam switch latency indicates a delay between the DCI and the one or more A-CSI-RSs.

An apparatus for wireless communications by a first device, comprising:

• at least one processor configured to:
• transmit, from the first device to a second device, a first indication of first device's capability associated with beam switch latency, wherein the first indication includes a first beam switch latency;
• receive, from the second device, a second indication triggering communication of one or more reference signals, wherein the second indication comprises a downlink control information (DCI), and the one or more reference signals comprise one or more aperiodic channel state information reference signals (A-CSI-RSs);
• and
• receive, from the second device, the one or more reference signals after receiving the second indication, wherein a delay between receiving the second indication and the one or more reference signals is based on the first beam switch latency, wherein the first beam switch latency indicates a delay between the DCI and the one or more A-CSI-RSs;
• and
• a memory coupled to the at least one processor.

An apparatus for wireless communications by a second device, comprising:

• at least one processor configured to:
• receive, from a first device, a first indication of first device's capability associated with beam switch latency, wherein the first indication includes a first beam switch latency;
• transmit, from the second device to the first device, a second indication triggering communication of one or more reference signals, wherein the second indication comprises a downlink control information (DCI), and the one or more reference signals comprise one or more aperiodic channel state information reference signals (A-CSI-RSs);
• and
• transmit, from the second device to the first device, the one or more reference signals after transmitting the second indication, wherein a delay between transmitting the second indication and the one or more reference signals is based on the first beam switch latency, wherein the first beam switch latency indicates a delay between the DCI and the one or more A-CSI-RSs;
• and
• a memory coupled to the at least one processor.