Method by which terminal performs measurement in wireless communication system, and device therefor

A method by a user equipment (UE) comprising:

• receiving configuration information for configuring time domain windows (TDWs) for a carrier phase measurement within a measurement gap from a network;
• measuring a phase difference of positioning reference signals (PRSs) based on the configuration information;
• and
• reporting measurement information regarding the phase difference to the network,
• wherein the phase difference is measured using only the PRSs received within a same TDW among the TDWs.

A user equipment (UE) comprising:

• a radio frequency (RF) transceiver;
• and
• a processor connected to the RF receiver,
• wherein the processor controls the RF transceiver to receive configuration information for configuring time domain windows (TDWs) for a carrier phase measurement within a measurement gap from a network, measures a phase difference of positioning reference signals (PRSs) based on the configuration information, and reports measurement information regarding the phase difference to the network, and
• wherein the phase difference is measured using only the PRSs received within a same TDW among the TDWs.

A method by a network comprising:

• transmitting configuration information for configuring time domain windows (TDWs) for a carrier phase measurement within a measurement gap to the a user equipment (UE);
• measuring a phase difference of positioning reference signals (PRSs) based on the configuration information;
• and
• receiving measurement information regarding the phase difference,
• wherein the measurement information includes the phase difference measured using only the PRSs received within a same TDW among the TDWs.