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Apple patents method for devices to measure signal strength directly

Apple describes a way for devices to talk to each other directly without a base station, a process known as sidelink. The system sends a specific test signal to a group of nearby devices at once, and each device reports back how strong that signal is using its own private connection.

Why it mattersThis improves how nearby devices can coordinate their connections, which is useful for features like car-to-car communication or direct device-to-device data sharing.

In the filing’s own words

Disclosed are methods, systems, and computer-readable medium to perform operations including establishing respective sidelink unicast sessions with a plurality of receiver (Rx) user equipment (UEs); establishing a sidelink groupcast session with at least two of the plurality of Rx UEs; causing transmission, via the sidelink groupcast session, of a sidelink Channel State Information-Reference Signal (CSI-RS) to the at least two Rx UEs; and receiving sidelink beam reporting that is separately sent from the at least two Rx UEs via the corresponding unicast sessions of the at least two Rx UEs.

What exactly they claim (claim 1)

1. One or more processors configured to perform operations comprising: establishing respective sidelink unicast sessions with a plurality of receiver (Rx) user equipment (UEs); establishing a sidelink groupcast session with at least two of the plurality of Rx UEs; causing transmission, via the sidelink groupcast session, of a sidelink Channel State Information-Reference Signal (CSI-RS) to the at least two Rx UEs; and receiving sidelink beam reporting that is separately sent from the at least two Rx UEs via the corresponding unicast sessions of the at least two Rx UEs.

Facts

Company
Apple (Apple Inc.)
Official title
ENHANCED SIDELINK CSI-RS TRANSMISSIONS FOR BEAM MEASUREMENT
Publication number
US20260262133A1
Application number
19164806
Filed
Mar 29, 2024
Published
Sep 3, 2026
Inventors
6
Claims
22

Classified under

H04W 76/40 Electricity & electronicsH04W 72/25 Electricity & electronicsH04W 76/14 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.