Single-antenna tracking of moving target
AssigneeQUALCOMM Incorporated
InventorFeliciano Gomez Martinez
Life of this patent
Estimating the term…
Abstract
Aspects presented herein may enable a UE to accurately locate a moving target using a single antenna. In one aspect, a first UE tracks a first set of displacements of the first UE relative to a first reference frame during a ranging session. The first UE transmits, to a second UE, an indication to track a second set of displacements of the second UE relative to a second reference frame during the ranging session. The first UE receives, from the second UE based on the indication, the second set of displacements of the second UE. The first UE computes a relative location of the second UE with respect to the first UE based on (1) the first set of displacements, (2) the second set of displacements, and (3) a set of ranging measurements associated with the ranging session.
Claims19
An apparatus for wireless communication at a first user equipment (UE), comprising:
- at least one memory;
- and
- at least one processor coupled to the at least one memory, the at least one processor, individually or in any combination, is configured to:
- track a first set of displacements of the first UE relative to a first reference frame of the first UE during a ranging session;
- transmit, to a second UE, an indication to track a second set of displacements of the second UE relative to a second reference frame of the second UE during the ranging session;
- receive, from the second UE based on the indication, the second set of displacements of the second UE or raw sensor information associated with the second set of displacements of the second UE;
- compute a relative location of the second UE with respect to the first UE based on (1) the first set of displacements, (2) the second set of displacements or the raw sensor information associated with the second set of displacements, and (3) a set of ranging measurements associated with the ranging session;
- estimate an accuracy for the computed relative location of the second UE;
- and
- output the computed relative location of the second UE if the estimated accuracy exceeds an accuracy threshold, or request a user of the first UE to move or continue moving if the estimated accuracy is below the accuracy threshold.
A method of wireless communication at a first user equipment (UE), comprising:
- tracking a first set of displacements of the first UE relative to a first reference frame of the first UE during a ranging session;
- transmitting, to a second UE, an indication to track a second set of displacements of the second UE relative to a second reference frame of the second UE during the ranging session;
- receiving, from the second UE based on the indication, the second set of displacements of the second UE or raw sensor information associated with the second set of displacements of the second UE;
- computing a relative location of the second UE with respect to the first UE based on (1) the first set of displacements, (2) the second set of displacements or the raw sensor information associated with the second set of displacements, and (3) a set of ranging measurements associated with the ranging session;
- estimate an accuracy for the computed relative location of the second UE;
- and
- output the computed relative location of the second UE if the estimated accuracy exceeds an accuracy threshold, or request a user of the first UE to move or continue moving if the estimated accuracy is below the accuracy threshold.
An apparatus for wireless communication at a first user equipment (UE), comprising:
- a user interface (UI);
- at least one memory;
- and
- at least one processor coupled to the at least one memory, the at least one processor, individually or in any combination, is configured to:
- provide, at the UI, a guidance for moving the first UE during a ranging session;
- track a first set of displacements of the first UE relative to a first reference frame of the first UE when the UE is moving;
- transmit, to a second UE, an indication to track a second set of displacements of the second UE relative to a second reference frame of the second UE during the ranging session;
- receive, from the second UE based on the indication, the second set of displacements of the second UE or raw sensor information associated with the second set of displacements of the second UE;
- compute a relative location of the second UE with respect to the first UE based on (1) the first set of displacements, (2) the second set of displacements or the raw sensor information associated with the second set of displacements, and (3) a set of ranging measurements associated with the ranging session;
- estimate an accuracy for the computed relative location of the second UE;
- and
- output the computed relative location of the second UE if the estimated accuracy exceeds an accuracy threshold, or request a user of the first UE to move or continue moving if the estimated accuracy is below the accuracy threshold.
Dependencies are inferred from the claim text.