Method for measuring and reporting channel state information in wireless communication system and device for same

A base station for receiving reporting of channel state information (CSI) in a wireless communication system, the base station comprising:

• a radio frequency module (RF module) for transmitting and receiving a radio signal;
• and
• a processor functionally connected to the RF module,
• wherein the processor controls to:
• transmit CSI reporting setting information related to a CSI report to a terminal, wherein the CSI reporting setting information comprises information indicating time offset for the CSI report,
• transmit a channel state information reference signal (CSI-RS) to the terminal,
• transmit control information for triggering the CSI report to the terminal,
• receive a CSI report generated based on measurement of the CSI-RS from the terminal,
• wherein the CSI-RS is transmitted periodically or semi-persistently, based on the time offset for the CSI report being set to a value ‘0’,
• wherein the time offset for the CSI report is set for each slot type,
• wherein the slot type is set according to the number of symbols constituting one slot, and
• wherein the time offset ‘k’ in a slot type configured with the M number of symbols corresponds to the time offset ‘M/N*k’ in an N symbol slot type configured with the N number of symbols.

A method in which a terminal reports channel state information (CSI) in a wireless communication system, the method comprising:

• receiving CSI report setting information related to a CSI report from a base station, wherein the CSI reporting setting information comprises information indicating time offset for the CSI report;
• receiving a channel state information reference signal (CSI-RS) from the base station;
• receiving control information for triggering the CSI report from the base station;
• and
• reporting CSI generated based on measurement of the CSI-RS to the base station,
• wherein the CSI-RS is transmitted periodically or semi-persistently, based on the time offset for the CSI report being set to a value ‘0’,
• wherein the time offset for the CSI report is set for each slot type,
• wherein the slot type is set according to the number of symbols constituting one slot, and
• wherein the time offset ‘k’ in a slot type configured with the M number of symbols corresponds to the time offset ‘M/N*k’ in an N symbol slot type configured with the N number of symbols.

A terminal for reporting channel state information (CSI) in a wireless communication system, the terminal comprising:

• a communication module for transmitting and receiving a radio signal;
• and
• a processor configured to control the communication module,
• wherein the processor is configured to:
• receive CSI report setting information related to a CSI report from a base station, wherein the CSI reporting setting information comprises information indicating time offset for the CSI report;
• receive a channel state information reference signal (CSI-RS) from the base station;
• receive control information for triggering the CSI report from the base station;
• and
• report CSI generated based on measurement of the CSI-RS to the base station,
• wherein the CSI-RS is transmitted periodically or semi-persistently, based on the time offset for the CSI report being set to a value ‘0’,
• wherein the time offset for the CSI report is set for each slot type,
• wherein the slot type is set according to the number of symbols constituting one slot, and
• wherein the time offset ‘k’ in a slot type configured with the M number of symbols corresponds to the time offset ‘M/N*k’ in an N symbol slot type configured with the N number of symbols.