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Apple patents method for adjusting wireless signals between nearby phones

Apple describes a way for two devices to communicate directly without a cell tower by adjusting their signal beams. The sender checks how fast the receiver can change its focus and sends test signals accordingly to keep the connection stable.

Why it mattersThis improves the reliability of direct device-to-device communication, which is useful for features like car-to-phone alerts or local data sharing in crowded areas.

In the filing’s own words

Disclosed are methods, user devices, processors configured to perform operations including receiving, from a receiver (Rx) user equipment (UE) via a sidelink interface, a beam switching time of the Rx UE; configuring one or more resources for transmitting one or more sidelink channel state information reference signals (CSI-RS) to the Rx UE, where a maximum number of sidelink CSI-RS symbols for transmission in a slot is determined based on the beam switching time of the Rx UE; and causing transmission to the Rx UE: of (i) an indication of a selected number of sidelink CSI-RS symbols in the slot, where the selected number of sidelink CSI-RS symbols is less than or equal to the maximum number of sidelink CSI-RS symbols, and (ii) the one or more sidelink CSI-RS using the one or more resources.

What exactly they claim (claim 1)

1. One or more processors configured to perform operations comprising: receiving, from a receiver (Rx) user equipment (UE) via a sidelink interface, a beam switching time of the Rx UE; configuring one or more resources for transmitting one or more sidelink channel state information reference signals (CSI-RS) to the Rx UE, wherein a maximum number of sidelink CSI-RS symbols for transmission in a slot is determined based on the beam switching time of the Rx UE; and causing transmission to the Rx UE: of (i) an indication of a selected number of sidelink CSI-RS symbols in the slot, wherein the selected number of sidelink CSI-RS symbols is less than or equal to the maximum number of sidelink CSI-RS symbols, and (ii) the one or more sidelink CSI-RS using the one or more resources.

Facts

Company
Apple (Apple Inc.)
Official title
SIDELINK TRANSMISSION AND RECEPTION BEAMS FOR BEAM MANAGEMENT
Publication number
US20260291589A1
Application number
19472394
Filed
Apr 4, 2024
Published
Sep 24, 2026
Inventors
6
Claims
23

Classified under

H04B 7/06954 Electricity & electronicsH04B 7/0626 Electricity & electronicsH04L 5/0007 Electricity & electronicsH04L 5/005 Electricity & electronicsH04L 5/0092 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.