USING DOPPLER FOR MULTIPATH DETECTION AND MITIGATION IN RF-BASED POSITIONING
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United States of America Patent
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Issued Date -
Dec 28, 2023
app pub date -
Jun 28, 2022
filing date -
Jun 28, 2022
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Abstract
Aspects presented herein may improve the performance and accuracy of RF-based positioning. Aspects presented herein may enable a device to use RF Doppler measurements to detect and mitigate multipath effects in RF-based positioning. The RF-based positioning may include satellite navigation, terrestrial positioning system, and/or indoor positioning. In one aspect, a UE receives, via a receiver, signals from one or more entities. The UE determines whether each received signal is a multipath signal based on a Doppler shift measurement. The UE de-weights or excludes one or more signals of the received signals in estimating a position of the UE based on whether the respective received signal is determined to be a multipath signal.
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