Method for transmitting and receiving uplink reference signal for positioning, and device therefor
A method by which a terminal transmits, in a wireless communication system, a reference signal for positioning is disclosed. Particularly, the disclosure can comprise: receiving information related to a cell list including at least one cell; receiving one or more downlink signals from the at least one cell; determining the transmission power of the reference signal on the basis of the reception power of a specific downlink signal from among the one or more downlink signals; and transmitting the reference signal on the basis of the transmission power.
1. A method for transmitting an Uplink (UL)—Reference Signal (RS) for positioning by a user equipment (UE) in a wireless communication system, the method comprising:
receiving (i) first information related to a downlink (DL)-RS associated with the UL-RS and (ii) second information related to a neighbor cell, which transmits the DL-RS, among a plurality of cells;
receiving, from the neighbor cell, the DL-RS; and
transmitting, to a serving cell among the plurality of cells, the UL-RS based on the DL-RS,
wherein a transmission power of the UL-is determined based on the DL-RS received from the neighbor cell.
2. The method of claim 1 , wherein the first information and the second information are used to calculate a value related to path-loss.
3. The method of claim 1 , wherein the UE is communicable with at least one of a UE other than the UE, a network, a base station (BS), or an autonomous driving vehicle.
4. A non-transitory medium which is readable by a processor and storing instructions that cause the processor to perform the method of claim 1 .
5. A user equipment (UE) for transmitting an Uplink (UL)—Reference Signal (RS) for positioning in a wireless communication system, the UE comprising:
at least one transceiver;
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
receiving, via the at least one transceiver, (i) first information related to a downlink (DL)-RS associated with the UL-RS and (ii) second information related to a neighbor cell, which transmits the DL-RS, among a plurality of cells;
receiving, from the neighbor cell via the at least one transceiver, the DL-RS; and
transmitting, to a serving cell among the plurality of cells, via the at least one transceiver, the UL-RS based on the DL-RS,
wherein a transmission power of the UL-RS is determined based on the DL-RS received from the neighbor cell.
6. The UE of claim 5 , wherein the first information and the second information are used to calculate a value related to path-loss.
7. The UE of claim 5 , wherein the UE is communicable with at least one of a UE other than the UE, a network, a base station (BS), or an autonomous driving vehicle.
8. An apparatus for transmitting an Uplink (UL)—Reference Signal (RS) for positioning in a wireless communication system, the apparatus comprising:
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
receiving (i) first information related to a downlink (DL)-RS associated with the UL-RS and (ii) second information related to a neighbor cell, which transmits the DL-RS, among a plurality of cells;
receiving, from the neighbor cell, the DL-RS; and
transmitting, to a serving cell among the plurality of cells, the UL-RS based on the DL-RS,
wherein a transmission power of the UL-RS is determined based on the DL-RS received from the neighbor cell.