Implicit signaling of large-scale channel properties across multiple tracking reference signal transmissions

A method for wireless communication at an access network entity, comprising:

• transmitting, to a user equipment (UE), downlink control information that includes a first transmission configuration indicator state for at least a first slot, and that includes a trigger for an aperiodic tracking reference signal in at least the first slot and a second slot;
• transmitting a first instance of the aperiodic tracking reference signal in the first slot and a second instance of the aperiodic tracking reference signal in the second slot, wherein a same first set of large scale transmission parameters is used for both the first instance of the aperiodic tracking reference signal and the second instance of the aperiodic tracking reference signal, and wherein the first set of large scale transmission parameters are different than a second set of large scale transmission parameters that are used for a periodic tracking reference signal;
• and
• receiving a feedback report that includes one or more parameters that are determined based at least in part on the first instance of the aperiodic tracking reference signal and the second instance of the aperiodic tracking reference signal.

An apparatus for wireless communication at a user equipment (UE), comprising:

• a processor,
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive downlink control information that includes a first transmission configuration indicator state for at least a first slot, and that includes a trigger for an aperiodic tracking reference signal in at least the first slot;
• measure a first instance of the aperiodic tracking reference signal in the first slot and a second instance of the aperiodic tracking reference signal in the first slot or a second slot;
• and
• update one or more time tracking parameters, frequency tracking parameters, or combinations thereof based at least in part on a same first set of large scale transmission parameters being used for at least the first instance of the aperiodic tracking reference signal and the second instance of the aperiodic tracking reference signal, wherein the first set of large scale transmission parameters are different than a second set of large scale transmission parameters that are used for a periodic tracking reference signal.

An apparatus for wireless communication at an access network entity, comprising:

• a processor,
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• transmit, to a user equipment (UE), downlink control information that includes a first transmission configuration indicator state for at least a first slot, and that includes a trigger for an aperiodic tracking reference signal in at least the first slot and a second slot;
• transmit a first instance of the aperiodic tracking reference signal in the first slot and a second instance of the aperiodic tracking reference signal in the second slot, wherein a same first set of large scale transmission parameters is used for both the first instance of the aperiodic tracking reference signal and the second instance of the aperiodic tracking reference signal, and wherein the first set of large scale transmission parameters are different than a second set of large scale transmission parameters that are used for a periodic tracking reference signal;
• and
• receive a feedback report that includes one or more parameters that are determined based at least in part on the first instance of the aperiodic tracking reference signal and the second instance of the aperiodic tracking reference signal.