Power and time delay profile reporting for device positioning.
By reporting power and time delay profiles for reference signals, the technique addresses inaccuracies in device location estimation due to multipath propagation, improving positioning accuracy through a fusion algorithm that utilizes line-of-sight signals.
JP7874087B2Active Publication Date: 2026-06-15QUALCOMM INC
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Patent Information
- Application Number
- JP2023507316
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2020-08-23
- Filing Date
- 2021-08-17
- Publication Date
- 2026-06-15
- Estimated Expiration
- 2041-08-17
AI Technical Summary
Technical Problem
Existing methods for determining the location of a mobile electronic device using cellular networks are inaccurate due to multipath propagation, which degrades the accuracy of round-trip time (RTT) measurements.
Method used
The technique involves reporting power and time delay profiles for reference signals received by the device from base stations, which are used by a network entity to estimate the device's location through a fusion algorithm, incorporating additional parameters like transmitted beam and sensor information.
Benefits of technology
This approach improves the accuracy of device positioning by selectively using line-of-sight propagation signals, reducing the impact of multipath interference and enhancing location estimation precision.
✦ Generated by Eureka AI based on patent content.
Abstract
Techniques are provided for a device to report positioning-related information to a network entity. In one example, the device receives signaling information from the network entity. The signaling information indicates one or more parameters for a report regarding a reference signal transmitted by a base station. The device also receives multiple propagations of the reference signal upon transmission of the reference signal by the base station. Based on the signaling information, the device generates a report, the report including a power and a time delay for each propagation of the reference signal. The device transmits the report to the network entity, and the location of the device is determined by the network entity based on the report.
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