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AppleGranted patentBatteries & energyInterest 4/10

Apple patents phone power saving that pauses signal checks

Apple has been granted a patent for a method that helps mobile phones save battery by adjusting how often they check for network instructions. The system uses specific signals from the network to tell the phone when to switch to a less frequent checking mode or skip checking entirely for a set period.

Why it mattersThis technique could help extend battery life on smartphones by reducing the energy used to constantly monitor network signals when data is not actively being transferred.

In the filing’s own words

Embodiments herein describe systems, apparatuses, and methods for adapting physical downlink control channel (PDCCH) monitoring behaviors. In some embodiments, a network node and a UE use search space set group switching to change PDCCH monitoring behavior. In some embodiments, a network node and a UE use PDCCH skipping to change PDCCH monitoring behavior. The PDCCH monitoring behavior may be indicated in a downlink control indicator (DCI).

What exactly they claim (claim 1)

1. A method for a user equipment (UE), the method comprising: receiving a search space configuration comprising a default search space set in a bandwidth part and a second search space set for the same bandwidth part as the default search space set; monitoring physical downlink control channel (PDCCH) according to the default search space set; receiving a scheduling downlink control information (DCI) comprising one bit for a search space switch indication indicating to change search spaces to the second search space set within the same bandwidth part as the default search space set; changing PDCCH monitoring according to the second search space set within the same bandwidth part as the default search space set in response to receiving the search space switch indication; receiving a second scheduling DCI message, the second scheduling DCI message including a skipping indication; determining a time to apply skipping for the PDDCH monitoring as a result of the skipping indication; and applying the skipping for the PDCCH for a preconfigured number of slots at the determined time, wherein the skipping is applied right after the second scheduling DCI is received as soon as the UE determines the skipping indication is included in the second scheduling DCI, wherein for downlink communication, the skipping is canceled based on a negative-acknowledgement (NACK) message, wherein when the NACK message is transmitted, by the UE, the skipping is canceled, wherein for uplink communication, the skipping is applied when drx-HARQRTTTimerUL expires.

Facts

Company
Apple (APPLE INC.)
Official title
Systems and methods of triggering active mode UE power saving
Patent number
US12764754B2
Application number
18752251
Filed
Jun 24, 2024
Granted
Oct 13, 2026
Inventors
10
Claims
12

Classified under

H04W 72/23 Electricity & electronicsH04L 5/0053 Electricity & electronicsH04W 24/08 Electricity & electronicsH04W 72/0446 Electricity & electronicsH04W 76/28 Electricity & electronics

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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.