Dynamic Thermal Management for Wireless System Temperature Control
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Solution Overview
Problem
Wireless systems face performance degradation and potential failure due to excessive heat generated during complex signal processing, which existing thermal management systems fail to adequately address.
Innovation Solution
A dynamic thermal management system that uses temperature sensors to monitor the temperature of wireless radios and adjusts operating parameters such as the number of active transmit paths, transmit duration, and power consumption to prevent overheating, employing MAC processing circuitry to control power usage and maintain safe temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the wireless system performs complex signal processing functions, then the signal processing capability is improved, but heat generation increases causing performance degradation or system failure
Solution Approach 1:
The patent implements dynamic thermal management that continuously monitors temperature and adjusts operating parameters in real-time. The system transitions between different operational states (normal operation, reduced performance, suspend) based on temperature thresholds, making the system adaptable to thermal conditions while maintaining signal processing capability within safe temperature limits
Solution Approach 2:
The system changes operating parameters such as processor frequency, voltage, and activity levels based on temperature conditions. By adjusting these parameters dynamically, the system can reduce power consumption and heat generation when temperature thresholds are approached, while maintaining optimal performance when temperatures are acceptable
2Productivity
If the wireless system operates at high power to maintain performance, then signal processing capability is maintained, but temperature increases risking system failure
Solution Approach 1:
The patent employs a feedback mechanism where temperature sensors continuously monitor thermal conditions and provide input to the thermal management system. This feedback loop enables the system to adjust power consumption and operating parameters dynamically, maintaining performance when temperatures are safe while preventing system failure by reducing power when temperature thresholds are approached
Solution Approach 2:
The system performs preliminary thermal management actions by establishing temperature thresholds and proactive cooling strategies before critical temperatures are reached. The suspend state and reduced performance mode serve as preliminary interventions that prevent complete system failure by addressing thermal issues before they become critical
Data Source
AI summary
A dynamic temperature manager of a wireless system determines a threshold temperature defined by one or more operating parameters of the wireless system, the threshold temperature indicating a temperature in response to which power consumption of the wireless system is to be reduced. The dynamic temperature manager receives an indication of a temperature of the wireless system. A determination is made that the temperature exceeds the threshold temperature. The dynamic temperature manager provides an indication to cause a media access control (MAC) processing circuitry of the wireless system to adjust the one or more operating parameters of the wireless system to reduce the power consumption and the temperature of the wireless system based on the determination that the temperature exceeds the threshold temperature.