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Google patents phone fix for dropped calls during network switches

Patent drawing
Patent drawing from the official filing.

This filing describes a method for mobile devices to handle connection errors that happen while switching between cell towers. If the phone detects a security or communication failure before the switch is complete, it either resets the connection or discards the new settings to prevent errors.

Why it mattersThis improves the reliability of mobile data connections by ensuring phones recover smoothly from minor network glitches during routine tower handovers.

In the filing’s own words

A equipment (UE) communicates with a RAN in a first cell in accordance with a first configuration. The UE receives, from the RAN, a message including a configuration for performing a serving cell change to a second cell subsequent to an activation command; detects a communication failure with the RAN, prior to receiving the activation command; and in response to the detecting, performing at least one of the following: (i) performing an RRC reestablishment procedure, or releasing the second configuration.

What exactly they claim (claim 1)

1. A method implemented in a user equipment (UE), the method comprising: communicating with a radio access network (RAN) in a first cell in accordance with a first configuration; receiving, from the RAN, a message including a second configuration for performing a serving cell change to a second cell subsequent to a lower layer serving cell change command transmitted separately from the message including the second configuration; detecting a communication failure with the RAN, including a security check failure, prior to receiving the lower layer serving cell change command; and in response to the detecting, performing at least one of the following: performing a radio resource control (RRC) reestablishment procedure, or releasing the second configuration.

Facts

Company
Google (GOOGLE LLC)
Official title
MANAGING COMMUNICATION FAILURES IN A USER EQUIPMENT
Publication number
US20260323752A1
Application number
19116490
Filed
Sep 29, 2023
Published
Oct 15, 2026
Inventors
1
Claims
22

Classified under

H04W 76/19 Electricity & electronicsH04W 12/037 Electricity & electronicsH04W 12/106 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.