Positioning method by user device in wireless communication system

An apparatus for a user equipment (UE) in a wireless communication system, the apparatus comprising:

• at least one processor;
• and
• at least one memory operatively connected to the at least one processor and configured to store at least one instruction for allowing the at least one processor to perform operations,
• wherein the operations includes:
• receiving positioning reference signal (PRS) configuration information;
• performing listen before talk (LBT) with respect to an unlicensed-band;
• transmitting a first positioning reference signal (PRS) to an anchor node (AN) based on the PRS configuration information on a channel in an idle state according to the LBT among a plurality of channels included in the unlicensed-band;
• and
• receiving a second PRS from the AN based on the PRS configuration information on the channel, and
• wherein the first PRS is transmitted immediately after the LBT is performed.

A processor for performing operations for a user equipment (UE) in a wireless communication system, the operations comprising:

• receiving positioning reference signal (PRS) configuration information;
• performing listen before talk (LBT) with respect to an unlicensed-band;
• transmitting a first positioning reference signal (PRS) to an anchor node (AN) based on the PRS configuration information on a channel in an idle state according to the LBT among a plurality of channels included in the unlicensed-band;
• and
• receiving a second PRS from the AN based on the PRS configuration information on the channel,
• wherein the first PRS is transmitted immediately after the LBT is performed.