Granted Patent B2

US 12,634,868 · App. 18/025,532 · Granted May 19, 2026

Inventors: Jongseob Baek (Seoul, KR); Hanbyul Seo (Seoul, KR)

Assignee: LG ELECTRONICS INC.

H04W64/00H04L5/0051H04W72/12

Abstract

Claims (44)

1 . A method by a first user equipment (UE) comprising:

receiving configuration information related to a direct communication between UEs,

wherein the configuration information includes information on a resource pool for a positioning reference signal (PRS);

measuring a channel busy ratio (CBR) based on the resource pool for the PRS;

transmitting scheduling information for scheduling a transmission of the PRS in the resource pool;

transmitting a first PRS to neighboring UEs based on the scheduling information;

receiving at least one second PRS from at least one neighboring UE among the neighboring UEs; and

performing positioning based on the at least one second PRS,

wherein the scheduling information further includes a first threshold for specifying the at least one neighboring UE that is to transmit the at least one second PRS as at least one Anchor Node (AN) for the positioning,

wherein the first threshold is a value for a confidence level of an absolute position or a positioning quality indicator (PQI) determined based on the CBR, and

wherein the at least one second PRS is received through a feedback channel related to the scheduling information.

2 . The method of claim 1 , wherein the first UE receives the at least one second PRS from the at least one neighboring UE having the confidence level of the absolute position or the PQI which is equal to or greater than the first threshold.

3 . The method of claim 1 , wherein the first UE increases the first threshold in response to an increase in the CBR.

4 . The method of claim 1 , wherein the first UE determines a second threshold based on the CBR, and

wherein the first UE transmits the scheduling information based on the confidence level of the absolute position of the first UE or the PQI of the first UE which is less than the second threshold.

5 . The method of claim 1 , wherein the first UE determines a second threshold based on the CBR, and

wherein the first UE drops transmission of the scheduling information based on the confidence level of the absolute position of the first UE or the PQI of the first UE, which is equal to or greater than the second threshold.

6 . The method of claim 1 , wherein the first UE determines a PRS pattern for the first PRS based on the CBR.

7 . The method of claim 1 , further comprising determining a transmission parameter for the first PRS based on the CBR,

wherein the transmission parameter includes at least one of a modulation and coding scheme (MCS), a transmission period, the number of repeated transmissions, and a transmit power.

8 . The method of claim 1 , wherein the resource pool includes a first resource region configured to transmit the resource pool and a second resource region configured to transmit the first PRS.

9 . The method of claim 8 , wherein the first UE measures a first CBR for the first resource region and a second CBR for the second resource region and determines a larger of the first CBR and the second CBR as the CBR.

10 . A method by a second user equipment (UE) comprising:

receiving configuration information related to a direct communication between UEs,

wherein the configuration information includes information on a resource pool for a positioning reference signal (PRS);

receiving scheduling information for scheduling a transmission of the PRS in the resource pool;

receiving a first PRS based on the scheduling information; and

determining whether to transmit a second PRS in response to the PRS, based on the scheduling information,

wherein the scheduling information further includes a first threshold for specifying neighboring UE that is to transmit the second PRS as an Anchor Node (AN) for the positioning, and

wherein the second UE transmits the second PRS to the first UE as the AN for positioning the first UE based on a confidence level of an absolute position of the second UE or a positioning quality indicator (PQI) of the second UE which is equal to or greater than the first threshold, and

wherein the second PRS is transmitted through a feedback channel related to the scheduling information.

11 . A first user equipment (UE) comprising:

a radio frequency (RF) transceiver; and

a processor connected to the RF transceiver,

wherein the processor is configured to:

receiving configuration information related to a direct communication between UEs, wherein the configuration information includes information on a resource pool for a positioning reference signal (PRS);

measure a channel busy ratio (CBR) based on the resource pool for the PRS;

control the RF transceiver to transmit scheduling information for scheduling a transmission of the PRS in the resource pool;

transmit a first PRS to neighboring UEs based on the scheduling information,

receive at least one second PRS from at least one neighboring UE among the neighboring UEs; and

perform positioning based on the at least one second PRS,

wherein the scheduling information further includes a first threshold for specifying the at least one neighboring UE that is to transmit the at least one second PRS as at least one Anchor Node (AN) for the positioning,

wherein the first threshold is a value for a confidence level of an absolute position or a positioning quality indicator (PQI) determined based on the CBR, and

wherein the at least one second PRS is received through a feedback channel related to the scheduling information.

Assignments (1)

Priority Claims (3)

Continuity (1)

References Cited (10)