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Samsung patents radar-like sensing using OTFS signals

Patent drawing
Patent drawing from the official filing.

Samsung describes a device that sends out a specific type of radio signal called OTFS and listens for the echo bouncing back from an object. By analyzing how the signal changes, the device calculates how far away the object is and how fast it is moving.

Why it mattersThis approach could improve how 6G networks detect objects and movement, potentially making future wireless connections more aware of their physical surroundings.

In the filing’s own words

Provided is a sensing apparatus including a transmitting/receiving circuit configured to transmit an orthogonal time frequency space (OTFS) transmitted signal to a target, and receive an OTFS received signal, the OTFS received signal corresponding to the OTFS transmitted signal having been reflected by the target, and processing circuitry configured to calculate a first spectrum matrix in a delay-Doppler domain based on the OTFS transmitted signal and the OTFS received signal, and estimate a first distance to the target and a first velocity of the target based on a plurality of first elements included in the first spectrum matrix respectively corresponding to at least some of a first plurality of grids configured to divide uniformly a total search region, and the total search region corresponding to a bandwidth and a frame time of the OTFS transmitted signal in the delay-Doppler domain.

What exactly they claim (claim 1)

1. A sensing apparatus comprising: a transmitting/receiving circuit configured to, transmit an orthogonal time frequency space (OTFS) transmitted signal to at least one target, and receive an OTFS received signal, the OTFS received signal corresponding to the OTFS transmitted signal having been reflected by the at least one target; and processing circuitry configured to, calculate a first spectrum matrix in a delay-Doppler domain based on the OTFS transmitted signal and the OTFS received signal, and estimate a first distance to the at least one target and a first velocity of the at least one target based on a plurality of first elements included in the first spectrum matrix, the plurality of first elements respectively corresponding to at least some of a first plurality of grids configured to divide uniformly a total search region, and the total search region corresponding to a bandwidth and a frame time of the OTFS transmitted signal in the delay-Doppler domain.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
SENSING APPARATUS FOR LOW-COMPLEXITY SENSING BASED ON OTFS SIGNAL AND METHOD OF OPERATING THE SENSING APPARATUS
Publication number
US20260322568A1
Application number
19641940
Filed
Apr 8, 2026
Published
Oct 15, 2026
Inventors
2
Claims
20

Classified under

H04L 5/0094 Electricity & electronicsH04L 25/03821 Electricity & electronicsH04L 25/03019 Electricity & electronicsH04L 2025/03414 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.