Surface Temperature Estimation for Wireless Thermal Mitigation
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Solution Overview
Problem
High signal processing capability in wireless communication devices leads to increased power consumption and heat generation, potentially causing device malfunction and user discomfort, necessitating effective thermal management solutions.
Innovation Solution
A method and apparatus that utilize temperature sensors and a controller to estimate surface temperature and perform thermal mitigation operations based on predefined temperature ranges, adjusting signal processing states to manage heat effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high signal processing capability is utilized for wireless communication, then throughput and data transmission speed are improved, but power consumption and heat generation increase
Solution Approach 1:
The patent implements dynamic thermal management by continuously monitoring internal temperatures and adjusting signal processing operations in real-time. The system transitions between different operational states based on temperature thresholds, dynamically balancing throughput requirements with thermal constraints to prevent overheating while maintaining communication performance.
Solution Approach 2:
The system changes operational parameters such as signal processing intensity, transmission power, and data rate based on temperature conditions. When temperature exceeds thresholds, the system modifies these parameters to reduce heat generation, thereby resolving the contradiction between maintaining high throughput and controlling power consumption.
2Speed
If high signal processing capability is utilized for wireless communication, then data transmission speed is improved, but temperature increase causes device malfunction and component damage
Solution Approach 1:
The system performs preliminary temperature monitoring and predictive thermal management by establishing temperature thresholds and mitigation strategies before critical overheating occurs. The controller proactively adjusts operations when temperature approaches unsafe levels, preventing device malfunction and component damage before they happen.
Solution Approach 2:
The patent implements a feedback mechanism where temperature sensors continuously monitor internal temperatures and provide information to the controller. The controller uses this feedback to adjust signal processing operations, creating a closed-loop system that maintains device reliability while preserving data transmission speed within thermal constraints.
3Productivity
If high signal processing capability is utilized for wireless communication, then throughput is improved, but heat generation causes user discomfort and harm
Solution Approach 1:
The patent introduces surface temperature as an intermediary parameter between internal component temperature and user contact. By monitoring and controlling surface temperature in addition to internal temperatures, the system ensures that thermal management protects both device components and users from harmful heat effects while maintaining communication throughput.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables practical thermal management by predicting surface temperatures and selectively performing thermal mitigation operations, thereby reducing heat-related issues and ensuring efficient operation of wireless communication devices.
Implementation Method 1
a plurality of temperature sensors configured to sense a plurality of internal temperatures of the signal processing device, respectively
Data Source
AI summary
A signal processing device, which processes a baseband signal for wireless communication, includes a plurality of temperature sensors arranged to sense internal temperatures of the signal processing device, respectively, a threshold storage storing a plurality of thresholds, and a controller that estimates a surface temperature based on the sensed internal temperatures and performs a thermal mitigation operation based on the surface temperature and a plurality of temperature ranges defined by the plurality of thresholds.