Granted Patent B2

US 12,405,362 · App. 18/032,047 · Granted Sep 2, 2025

Inventors: Sanjay Goyal (Deer Park, NY); Mihaela Beluri (Jericho, NY); Ojas Kanhere (Brooklyn, NY); Ravikumar Pragada (Warrington, PA); Hussain Elkotby (Conshohocken, PA); Patrick Cabrol (Bayshore, NY); Tanbir Haque (Jackson Heights, NY); Alpaslan Demir (East Meadow, NY)

Assignee: InterDigital Patent Holdings, Inc.

G01S13/003G01S7/003

Abstract

Claims (45)

1. A first wireless transmit/receive unit (WTRU) comprising,

a processor configured to:

send a localization request to a set of WTRUs;

receive a plurality of localization responses, wherein each localization response in the plurality of localization responses is associated with a respective WTRU in the set of WTRUs;

determine, based on the received plurality of localization responses, a first subset of WTRUs, wherein the first subset of WTRUs is a subset of the set of WTRUs;

send initial measurement configuration information to the first subset of WTRUs, wherein the initial measurement configuration information indicates a reference signal transmission parameter;

receive a first reference signal from a second WTRU, wherein the second WTRU is in the first subset of WTRUs;

perform a first measurement associated with a first object using the first reference signal; and

determine, based on the first measurement, the first object and a first object estimation error.

2. The first WTRU of claim 1 , wherein the processor is further configured to:

determine if the first object estimation error is above a threshold; and

select a second subset of WTRUs based on a determination that the first object estimation error is above the threshold, wherein the second subset of WTRUs is a subset of the first subset of WTRUs.

3. The first WTRU of claim 2 , wherein the processor is further configured to:

send a second reference signal associated with the first WTRU to a third WTRU, wherein the third WTRU is a receiving WTRU in the second subset of WTRUs;

receive a second measurement from the third WTRU, wherein the second measurement is associated with the second reference signal; and

determine, based on the second measurement, a second object and a second object estimation error, wherein the second object is a refined estimate of the first object, and wherein the second object estimation error is a refined estimate of the first object estimation error.

4. The first WTRU of claim 2 , wherein the processor is further configured to:

perform a second measurement with a second reference signal, wherein the second reference signal is from the second subset of WTRUs; and

determine, based on the second measurement, a second object and a second object estimation error, wherein the second object is a refined estimate of the first object, and wherein the second object estimation error is a refined estimate of the first object estimation error.

5. The first WTRU of claim 1 , wherein the reference signal transmission parameter is associated with the first subset of WTRUs.

6. The first WTRU of claim 1 , wherein the processor is further configured to:

send one or more of the first object, the first object estimation error, a second object, or a second object estimation error to one or more of a network or one or more WTRUs.

7. The first WTRU of claim 1 , wherein the first object estimation error is an estimation error associated with a location associated with the first object.

8. A method for a first wireless transmit/receive unit (WTRU), the method comprising,

sending a localization request to a set of WTRUs;

receiving a plurality of localization responses, wherein each localization response in the plurality of localization responses is associated with a respective WTRU in the set of WTRUs;

determining, based on the received plurality of localization responses, a first subset of WTRUs, wherein the first subset of WTRUs is a subset of the set of WTRUs;

sending initial measurement configuration information to the first subset of WTRUs, wherein the initial measurement configuration information indicates a reference signal transmission parameter;

receiving a first reference signal from a second WTRU, wherein the second WTRU is in the first subset of WTRUs;

performing a first measurement associated with a first object using the first reference signal; and

determining, based on the first measurement, the first object and a first object estimation error.

9. The method of claim 8 , wherein the method further comprises:

determining if the first object estimation error is above a threshold; and

selecting a second subset of WTRUs based on a determination that the first object estimation error is above the threshold, wherein the second subset of WTRUs is a subset of the first subset of WTRUs.

10. The method of claim 9 , wherein the method further comprises:

sending a second reference signal associated with the first WTRU to a third WTRU, wherein the third WTRU is a receiving WTRU in the second subset of WTRUs;

receiving a second measurement from the third WTRU, wherein the second measurement is associated with the second reference signal; and

determining, based on the second measurement, a second object and a second object estimation error, wherein the second object is a refined estimate of the first object, and wherein the second object estimation error is a refined estimate of the first object estimation error.

11. The method of claim 9 , wherein the method further comprises:

performing a second measurement with a second reference signal, wherein the second reference signal is from the second subset of WTRUs; and

determining, based on the second measurement, a second object and a second object estimation error, wherein the second object is a refined estimate of the first object, and wherein the second object estimation error is a refined estimate of the first object estimation error.

12. The method of claim 8 , wherein the reference signal transmission parameter is associated with the first subset of WTRUs.

13. The method of claim 8 , wherein the method further comprises:

sending one or more of the first object, the first object estimation error, a second object, or a second object estimation error to one or more of a network or one or more WTRUs.

14. The method of claim 8 , wherein the first object estimation error is an estimation error associated with a location associated with the first object.

Assignments (2)

Continuity (2)

References Cited (19)