Method for terminal to receive downlink signal in wireless communication system and terminal for same
Disclosed is a method for a terminal to receive a downlink signal from a base station in a wireless communication system. Specifically, the present invention may include: a step for acquiring a minimum CSI-RS triggering offset that is applicable to a CSI-RS for aperiodic CSI on the basis of the reception of a minimum applicable slot interval for the scheduling of a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH); a step for receiving, from the base station, downlink control information (DCI) for triggering the aperiodic CSI in a first slot; and a step for receiving the CSI-RS from the base station at a point in time later than the first slot and a second slot that is set on the basis of a CSI-RS triggering offset larger than or equal to the minimum applicable CSI-RS triggering offset.
1. A method of receiving an aperiodic channel state information reference signal (CSI-RS) by a user equipment (UE) from a base station (BS) in a wireless communication system, the method comprising:
receiving information on a minimum slot interval configurable as a slot interval from a physical downlink control channel (PDCCH) reception slot to a physical downlink shared channel (PDSCH) reception slot;
receiving, in a first slot, a PDCCH for triggering aperiodic CSI; and
receiving, in a second slot, the CSI-RS,
wherein the second slot is configured as a slot after the minimum slot interval from the first slot based on the information.
2. The method of claim 1 , wherein the the CSI-RS is not received for a time period between the first and second slots.
3. The method of claim 1 , wherein buffering for the CSI-RS is not performed for a time period between the first and second slots.
4. The method of claim 1 , wherein the aperiodic CSI is reported based on the CSI-RS received in the second slot.
5. The method of claim 4 , wherein the CSI-RS received in a time period between the first and second slots is not used for the aperiodic CSI.
6. The method of claim 1 , wherein the second slot is a time after decoding of the PDCCH is completed.
7. The method of claim 1 , wherein the UE is capable of communicating at least one of another UE other than the UE, the B S, a network, or an autonomous driving vehicle.
8. A user equipment (UE) for receiving an aperiodic channel state information reference signal (CSI-RS) from a base station (BS) in a wireless communication system, the UE comprising:
a transceiver configured to transmit and receive a signal; and
at least one processor configured to control the transceiver,
wherein the at least one processor is configured to:
control the transceiver to receive information on a minimum slot interval configurable as a slot interval from a physical downlink control channel (PDCCH) reception slot to a physical downlink shared channel (PDSCH) reception slot;
control the transceiver to receive, in a first slot, a PDCCH for triggering aperiodic CSI; and
control the transceiver to receive, in a second slot, the CSI-RS,
wherein the second slot is configured as a slot after the minimum slot interval from the first slot based on the information.
9. An apparatus for receiving an aperiodic channel state information reference signal (CSI-RS) in a wireless communication system, the apparatus comprising:
a memory; and
at least one processor connected to the memory;
wherein the at least one processor is configured to:
receive information on a minimum slot interval configurable as a slot interval from a physical downlink control channel (PDCCH) reception slot to a physical downlink shared channel (PDSCH) reception slot;
receive, in a first slot, a PDCCH for triggering aperiodic CSI; and
receive, in a second slot, the CSI-RS,
wherein the second slot is configured as a slot after the minimum slot interval from the first slot based on the information.