The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2025
Filed:
Apr. 22, 2022
Huawei Technologies Co., Ltd., Guangdong, CN;
Binbin Ni, Hangzhou, CN;
Dongkuang Song, Hangzhou, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
This disclosure discloses a power management method and device, applied to power management of an electronic device. The method includes the following processing: obtaining an IMU PM execution notification before an OS runs, where the IMU PM execution notification is sent by boot firmware after the boot firmware determines, before the OS runs, that power management PM is to be performed by the IMU firmware; after determining, based on the IMU PM execution notification, that PM is to be performed on a CPU obtaining a current performance parameter of the CPU, where the performance parameter includes one or more of power consumption, a temperature, and usage of the CPU (); and performing power management on the CPU based on the performance parameter (). Power management is performed so that interaction procedures between the OS and the IMU firmware can be reduced, so that the power management is more efficient.
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