Dynamic Power Allocation for Terminal Devices
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Solution Overview
Problem
The increasing peak power requirements of terminal devices due to growing compute demands are not matched by equivalent improvements in power delivery, leading to reduced peak power availability for other components and resulting in conservative power management approaches that sacrifice performance.
Innovation Solution
Implementing a dynamic peak power management system that includes a modem Pmax estimator and a platform peak power manager to predict and reallocate power within the terminal device, ensuring that the modem's peak power demands are accurately assessed and power is dynamically allocated to other components, thereby minimizing unnecessary power reserves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conservative power management is used to protect against peak power events, then system reliability is improved, but productivity deteriorates due to sacrificed performance
Solution Approach 1:
The patent implements dynamic power management that adjusts power allocation in real-time based on actual system conditions. The system transitions from static conservative power reserves to dynamic power allocation, where power is allocated to the SoC based on modem activity patterns, thermal conditions, and power availability, thereby improving both reliability and productivity simultaneously
Solution Approach 2:
The system employs feedback mechanisms through power management controllers that monitor modem power consumption, thermal conditions, and power delivery capabilities. This feedback enables the system to adaptively adjust power allocation to the SoC, ensuring reliability while maximizing performance by eliminating unnecessary power margins
2Reliability
If power is allocated to meet modem peak power requirements, then reliability is improved, but power availability for other components deteriorates
Solution Approach 1:
The patent implements dynamic power allocation that adjusts the power budget for the SoC based on real-time modem activity. When modem power consumption is below peak levels, additional power is dynamically allocated to the SoC, improving power availability without compromising peak power protection reliability
Solution Approach 2:
The system changes the power allocation parameter dynamically based on modem activity patterns, thermal conditions, and power delivery capabilities. Instead of fixed power reserves, the power allocation to SoC is adjusted as a variable parameter, optimizing the balance between reliability and power availability
3Reliability
If static power reserves are maintained for modem peak events, then reliability is improved, but loss of energy increases due to unused power
Solution Approach 1:
The patent recovers unused modem power reserves by dynamically reallocating them to the SoC when modem activity is below peak levels. Instead of discarding power through static reserves, the system recovers and utilizes this power for productive purposes, reducing energy loss while maintaining reliability through adaptive protection
Solution Approach 2:
The power management system serves itself by automatically adjusting power allocation based on real-time conditions without requiring external intervention. The system self-regulates power distribution between modem and SoC, eliminating waste through intelligent, condition-based allocation decisions
Data Source
AI summary
Methods and devices for allocating power among a plurality of circuits in a communication device, including determining a power budget for allocating to the plurality of circuits from a power supply information; receiving an activity status from a first circuit of the plurality of circuits; determining a first power value based on the activity status; deriving a second power value based on the first power value and the power budget; and allocating power to one or more remaining circuits of the plurality of circuits based on the second power value.