Multi-path angle estimation and reporting for NR localization

By receiving a set of multipath signals at the user equipment (UE) and estimating the angle of arrival (AoA) of the set of virtual anchor points (VA), the problem of limited positioning accuracy in the prior art is solved, and the effect of improving positioning accuracy and reducing costs on a per-path basis is achieved.

CN122295592APending Publication Date: 2026-06-26QUALCOMM INC
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Patent Information

Application Number
CN202480075434.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-12-18
Filing Date
2024-11-04
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The lack of per-path reporting information and angle measurement request, reporting, and capability signaling mechanisms in existing technologies hinders further improvements in positioning accuracy in wireless communication systems, especially in AoA estimation for multi-antenna receivers, which presents complexity and cost issues.

Method used

By receiving a set of multipath signals at the user equipment (UE), estimating the angle of arrival (AoA) of the multipath signals based on a set of virtual anchor points (VA), and reporting angle information and other multipath signal characteristics on a per-path basis, multipath angle estimation and reporting are performed using a set of ToF values, UE location, or VA location, reducing complexity and cost.

Benefits of technology

This technology improves UE positioning accuracy and enhances the precision of positioning and beam selection by configuring and reporting angle information for each path without using a multi-antenna receiver.

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Abstract

Multi-path angle estimation and reporting for positioning are described. An apparatus is configured to receive a set of multipath signals for a set of VA. Each VA in the set of VAs is associated with a corresponding reflective surface in the UE communication environment. Reflection of the set of multipath signals occurs via a corresponding reflective surface. The apparatus is configured to estimate at least one AoA associated with the set of multipath signals based on at least one of a set of ToF values associated with the set of multipath signals, a UE location, or a VA location. The apparatus is configured to provide an indication of multipath information associated with a set of multipath signals for a set of VA to a network entity. The multipath information includes at least one AoA associated with at least one multipath signal of the set of multipath signals.
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