公开(公告)号：US20240349080A1

公开(公告)日：2024-10-17

申请号：US18301189

申请日：2023-04-14

Applicant: Apple Inc.

Inventor： Amir Rajaee ,  Hao Ping Wen ,  De Jun Li ,  Murali Mohan Chakka ,  Douglas A MacKay ,  Vasanthakumar Balasubramaniam ,  Achmed Rumi Zahir ,  Prashant H Vashi ,  Mingkun Li ,  Priyank Mamania ,  Michael V Yeh ,  Luca Aldegheri ,  Reza Arastoo ,  Tu Le ,  Punit H Awatramani

IPC: H04W24/02 ,  H04W52/02

CPC classification number: H04W24/02 ,  H04W52/0203 ,  H04W88/18

Abstract: Communication device may include a transmitter and a receiver respectively coupled to one or more antennas to communicate (e.g., transmit or receive signals) with a base station. The communication device may receive an operating characteristic of a cellular modem within the communication device operating in a first cellular configuration and determine if the operating characteristic are greater than a threshold. The operating characteristic may include power and/or temperature. The threshold may include a power budget and/or a temperature threshold. If the operating characteristic is greater than the threshold, then the communication device may determine a control effort value based on the operating characteristic and the threshold. The communication device may map the control effort value to a second cellular configuration, which may correspond to reduced operating characteristics in comparison to the first cellular configuration. The communication device may then cause the cellular modem to operate in the second cellular configuration.

公开(公告)号：US20250085765A1

公开(公告)日：2025-03-13

申请号：US18465785

申请日：2023-09-12

Applicant: Apple Inc.

Inventor： Chee Lim Nge ,  Peter Hyungrok Sung ,  Douglas A. MacKay ,  Diwakar N. Tundlam ,  Jun Hou ,  Tu Le ,  Vishal Gupta ,  Ning Tian ,  Daniele Perretta ,  Bo Zhou ,  Michael Eng

IPC: G06F1/3234 ,  G01R31/387 ,  G06F1/3218

Abstract: Systems and methods are disclosed for allocating and distributing power management budgets for subsystems of a computer system. For each of a plurality of subsystems, a power management system may generate a long-term power budget and a closed-loop power budget, and then determine a final power budget to provide to the subsystem, e.g., by applying a min function, a weighted sum, or some other function to the long-term power budget and the closed-loop power budget. The closed-loop power budget is determined based on observations of power draw over a past period of time, and therefore cannot respond immediately to large changes in power. The long-term power budget is generated based on a prediction of battery capability over an upcoming window of time, and may therefore provide a power cap before the system is under duress.