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US 12,487,315 B2Granted
Sidelink reference signal for reconfigurable intelligent surface aided positioning
AssigneeQUALCOMM Incorporated
InventorsWeimin Duan, Alexandros Manolakos, Jing Lei
Life of this patent
Estimating the term…
Abstract
In an aspect, a relay UE transmits sidelink reference signals for positioning (SL-RS-P) off first and second reconfigurable intelligent surfaces (RISs). The target UE measures the reflected SL-RS-Ps. In an aspect, the SL-RS-Ps may be associated with configurations that are configured by a base station. In an aspect, a position estimation entity may obtain measurement information associated with the reflected SL-RS-Ps and determine a position estimate of the target UE based at least in part upon the measurement information.
Claims60
A method of operating a relay user equipment (UE), comprising:
- transmitting, to a target user equipment (UE), a first sidelink reference signal for positioning (SL-RS-P);
- transmitting a second SL-RS-P to a first reconfigurable intelligent surface (RIS) that is configured to reflect the second SL-RS-P to the target UE;
- and
- transmitting a third SL-RS-P to a second RIS that is configured to reflect the third SL-RS-P to the target UE.
1 more element
A method of operating a target user equipment (UE), comprising:
- receiving, from a relay UE, a first sidelink reference signal for positioning (SL-RS-P);
- receiving, from a first reconfigurable intelligent surface (RIS), a reflection of a second SL-RS-P transmitted by the relay UE;
- and
- receiving, from a second RIS, a reflection of a third SL-RS-P transmitted by the relay UE.
1 more element
A method of operating a base station, comprising:
- transmitting a first configuration of a first sidelink reference signal for positioning (SL-RS-P) for transmission by a relay user equipment (UE) to a target UE;
- transmitting a second configuration of a second SL-RS-P for transmission by the relay UE to a first reconfigurable intelligent surface (RIS) that is configured to reflect the second SL-RS-P to the target UE;
- and
- transmitting a third configuration of a third SL-RS-P for transmission by the relay UE to a second RIS that is configured to reflect the third SL-RS-P to the target UE.
1 more element
A method of operating a position estimation entity, comprising:
- obtaining measurement information based on (i) one or more measurements of a first sidelink reference signal for positioning (SL-RS-P) transmitted by a relay user equipment (UE) to a target UE, (ii) one or more measurements of a reflection, off a first reconfigurable intelligent surface (RIS), of a second SL-RS-P transmitted by the relay UE to the target UE, and (iii) one or more measurements of a reflection, off a second RIS, of a third SL-RS-P transmitted by the relay UE to the target UE;
- and
- determining a position estimate of the target UE based at least in part upon the measurement information.
A relay user equipment (UE), comprising:
- a memory;
- and
- at least one processor communicatively coupled to the memory, the at least one processor configured to:
- transmit, to a target user equipment (UE), a first sidelink reference signal for positioning (SL-RS-P);
- transmit a second SL-RS-P to a first reconfigurable intelligent surface (RIS) that is configured to reflect the second SL-RS-P to the target UE;
- and
- transmit a third SL-RS-P to a second RIS that is configured to reflect the third SL-RS-P to the target UE.
4 more elements
A target user equipment (UE), comprising:
- a memory;
- and
- at least one processor communicatively coupled to the memory, the at least one processor configured to:
- receive, from a relay UE, a first sidelink reference signal for positioning (SL-RS-P);
- receive, from a first reconfigurable intelligent surface (RIS), a reflection of a second SL-RS-P transmitted by the relay UE;
- and
- receive, from a second RIS, a reflection of a third SL-RS-P transmitted by the relay UE.
4 more elements
A base station, comprising:
- a memory;
- and
- at least one processor communicatively coupled to the memory, the at least one processor configured to:
- transmit a first configuration of a first sidelink reference signal for positioning (SL-RS-P) for transmission by a relay user equipment (UE) to a target UE;
- transmit a second configuration of a second SL-RS-P for transmission by the relay UE to a first reconfigurable intelligent surface (RIS) that is configured to reflect the second SL-RS-P to the target UE;
- and
- transmit a third configuration of a third SL-RS-P for transmission by the relay UE to a second RIS that is configured to reflect the third SL-RS-P to the target UE.
4 more elements
A position estimation entity, comprising:
- a memory;
- and
- at least one processor communicatively coupled to the memory, the at least one processor configured to:
- obtain measurement information based on (i) one or more measurements of a first sidelink reference signal for positioning (SL-RS-P) transmitted by a relay user equipment (UE) to a target UE, (ii) one or more measurements of a reflection, off a first reconfigurable intelligent surface (RIS), of a second SL-RS-P transmitted by the relay UE to the target UE, and (iii) one or more measurements of a reflection, off a second RIS, of a third SL-RS-P transmitted by the relay UE to the target UE;
- and
- determine a position estimate of the target UE based at least in part upon the measurement information.
3 more elements
Dependencies are inferred from the claim text.