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Apple patents method for phones to check signal strength across multiple cell groups

Patent drawing
Patent drawing from the official filing.

Apple has filed a patent application describing how a phone can monitor the quality of its connection to several different cell groups at the same time. The phone tells the network tower how many groups it can check simultaneously, then measures reference signals from inactive cells to detect if the connection is failing.

Why it mattersThis technical improvement helps ensure a phone can quickly switch to a better signal if the current one drops, potentially reducing call drops or slow data speeds in complex network environments.

In the filing’s own words

Methods and apparatus are provided for a user equipment (UE) to monitor link quality on multiple candidate cell groups (CGs) in a wireless network. The UE sends, from the UE to a base station, a UE capability message indicating a number of the candidate CGs for which the UE supports at least one of simultaneous radio link monitoring (RLM) and simultaneous beam failure detection (BFD). The UE processes, at the UE, a configuration by the base station for measuring reference signals corresponding to a plurality of deactivated cells up to the number of the candidate CGs indicated by the UE capability message. The UE measures the reference signals according to the configuration.

What exactly they claim (claim 1)

1. A method for a user equipment (UE) to monitor link quality on multiple candidate cell groups (CGs) in a wireless network, the method comprising: sending, from the UE to a base station, a UE capability message indicating a number of the candidate CGs for which the UE supports at least one of simultaneous radio link monitoring (RLM) and simultaneous beam failure detection (BFD); processing, at the UE, a configuration by the base station for measuring reference signals corresponding to a plurality of deactivated cells up to the number of the candidate CGs indicated by the UE capability message; and measuring the reference signals according to the configuration.

Facts

Company
Apple (APPLE INC.)
Official title
LINK QUALITY MONITORING ON MULTIPLE CANDIDATE CELL GROUPS
Publication number
US20260303231A1
Application number
18998208
Filed
Aug 9, 2022
Published
Oct 1, 2026
Inventors
11
Claims
21

Classified under

H04B 17/309 Electricity & electronicsH04L 5/0048 Electricity & electronicsH04W 8/24 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.