Positioning method in wireless communication system and device supporting same

1. A method of receiving a positioning reference signal (PRS) by a user equipment (UE) in a wireless communication system, the method comprising:

transmitting first information including a best PRS resource which is determined by the UE;

receiving, after the transmission of the first information, second information including a configuration for a reference transmission point (TP);

receiving a plurality of PRSs from a plurality of TPs including the reference TP;

performing a reference signal time difference (RSTD) measurement based on (i) the plurality of PRSs and (ii) a reference timing, wherein the reference timing is obtained based on the reference TP; and

reporting the RSTD measurement,

wherein the configuration for the reference TP includes PRS resource information of the reference TP.

2. The method of claim 1 , wherein the PRS resource information of the reference TP comprises information indicating a PRS resource set of the reference TP.

3. The method of claim 1 , wherein each of a plurality of PRS resources allocated to each of the plurality of TPs is related to a different transmission beam.

4. A user equipment (UE) configured to operate in a wireless communication system, the UE comprising:

a transceiver;

a memory storing instructions; and

at least one processor connected to the memory and the transceiver,

wherein the at least one processor is configured to execute the instructions to perform operations comprising:

transmitting first information including a best positioning reference signal (PRS) resource which is determined by the UE;

receiving, after the transmission of the first information, second information including configuration for a reference transmission point (TP);

receiving a plurality of PRSs from a plurality of TPs including the reference TP;

performing a reference signal time difference (RSTD) measurement based on (i) the plurality of PRSs and (ii) a reference timing, wherein the reference timing is obtained based on the reference TP; and

reporting the RSTD measurement,

wherein the configuration for the reference TP includes PRS resource information of the reference TP.

5. The UE of claim 4 , wherein the PRS resource information of the reference comprises information indicating a PRS resource set of the reference TP.

6. The UE of claim 4 , wherein each of a plurality of PRS resources allocated to each of the plurality of TPs is related to a different transmission beam.

7. The UE of claim 4 , wherein the UE is configured to communicate with at least one of a mobile terminal, a network, or an autonomous driving vehicle.

8. An apparatus configured to operate in a wireless communication system, the apparatus comprising:

at least one processor; and

at least one memory configured to store at least one instruction that causes the at least one processor to perform operations comprising:

transmitting first information including a best positioning reference signal (PRS) resource which is determined by the apparatus;

receiving, after the transmission of the first information, second information including a configuration for a reference transmission point (TP);

receiving a plurality of PRSs from a plurality of TPs including the reference TP;

performing a reference signal time difference (RSTD) measurement based on (i) the plurality of PRSs and (ii) a reference timing, wherein the reference timing is obtained based on the reference TP; and

reporting the RSTD measurement,

wherein the configuration for the reference TP includes PRS resource information of the reference TP.

9. A non-transitory processor-readable medium configured to store at least one instruction that causes at least one processor to perform operations comprising:

transmitting first information including a best positioning reference signal (PRS) resource;

receiving, after the transmission of the first information, second information including a configuration for a reference transmission point (TP);

receiving a plurality of PRSs from a plurality of TPs including the reference TP;

performing a reference signal time difference (RSTD) measurement based on (i) the plurality of PRSs and (ii) a reference timing, wherein the reference timing is obtained based on the reference TP; and

reporting the RSTD measurement,

wherein the configuration for the reference TP includes PRS resource information of the reference TP.