Methods and apparatuses for joint passive reference point positioning and synchronization

Methods and apparatuses for cooperative sensing with passive reference points improve energy efficiency in wireless communication systems by enhancing sensing performance and reducing overhead through the use of linear frequency modulated signals to determine reference point parameters.

WO2025251271A1PCT designated stage Publication Date: 2025-12-11HUAWEI TECH CO LTD
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Patent Information

Application Number
PCT/CN2024/097921
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-06-07
Publication Date
2025-12-11

AI Technical Summary

Technical Problem

Future wireless communication systems aim to enhance energy efficiency by 100 times while using green energy, necessitating methods and apparatuses for cooperative sensing using passive reference points to improve sensing performance and reduce overhead.

Method used

Methods and apparatuses enable low power mode sensing through association of sensing parameters with passive reference points, utilizing linear frequency modulated signals and passive devices to manipulate these signals for determining position, timing offset, and velocity of reference points.

Benefits of technology

Enhances sensing performance and reduces overhead by enabling collaborative sensing among nodes, facilitating accurate determination of reference point parameters such as position, timing offset, and velocity.

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Abstract

Aspects of the present disclosure provide methods to obtain sensing information, such as position information, timing offset information (with respect to the network), and a velocity vector information for a reference point within an environment using cooperative sensing of multiple communication nodes. The presented methods include exchanging of sensing signals and measurement of parameters between a first node and a second node.
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Citation Information

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