Cellular Network Switching for Electronic Device Thermal Control
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Solution Overview
Problem
Electronic devices generating excessive heat when accessing multiple cellular networks, particularly due to high-bandwidth 5G connections, face increased current consumption and heat generation issues, leading to deteriorated performance and safety risks.
Innovation Solution
The device incorporates a temperature sensor and communication module to monitor temperature and current consumption, switching to a more efficient cellular network based on environmental conditions to optimize thermal control and reduce power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the electronic device connects to a 5G network for high-bandwidth access, then wireless communication performance is improved, but heat generation and current consumption increase
Solution Approach 1:
The patent implements dynamic network switching between 5G and 4G/LTE networks based on real-time temperature monitoring. When temperature exceeds a threshold, the system automatically switches from 5G to 4G/LTE network, and can switch back when temperature decreases, creating a dynamic adaptation mechanism that resolves the contradiction between communication performance and thermal management
Solution Approach 2:
The system changes the network parameter (switching between 5G and 4G/LTE networks) based on temperature conditions. By monitoring temperature and adjusting the network type parameter, the system optimizes the balance between communication performance and heat generation, allowing high-performance 5G connectivity when thermal conditions permit while preventing overheating
2Temperature
If the electronic device falls back to a sub-network (4G/LTE) to reduce heat generation, then temperature control is improved, but current consumption may increase depending on RF environment
Solution Approach 1:
The patent employs a feedback mechanism that continuously monitors both temperature and current consumption parameters. The system measures temperature during network operation and uses this feedback to determine when to switch networks. Additionally, it monitors current consumption after switching to evaluate whether the thermal control action achieved acceptable energy trade-offs, creating a closed-loop control system
Solution Approach 2:
The system dynamically evaluates the trade-off between temperature reduction and current consumption increase by implementing conditional switching logic. It only switches to 4G/LTE when temperature thresholds are exceeded, and monitors whether the switching action results in acceptable current consumption levels, allowing flexible adaptation to varying RF environments
3Temperature
If the electronic device continuously monitors temperature and switches networks, then thermal management is improved, but device complexity increases
Solution Approach 1:
The patent implements a self-service thermal management system where the device autonomously monitors its own temperature and automatically switches networks based on pre-defined thresholds. The system uses built-in temperature sensors and processing capabilities to self-diagnose thermal conditions and self-correct by switching networks, eliminating the need for external thermal management hardware or complex control algorithms
Solution Approach 2:
The system simplifies thermal management by changing a single key parameter (network type) in response to temperature variations. Rather than implementing complex active cooling systems or multiple hardware components, the patent achieves thermal management through parameter-based control (switching between 5G and 4G/LTE), reducing device complexity while maintaining effective thermal control
Data Source
AI summary
A thermal control method of an electronic device includes: measuring a temperature of the electronic device in a first state connected to a first cellular network; identifying a first current consumed through a communication module in the first state; establishing connection to a second cellular network in case that the measured temperature exceeds a reference value; identifying a second current consumed through the communication module in a second state connected to the second cellular network; comparing a first communication environment of the first cellular network with a second communication environment of the second cellular network in case that the first current is less than the second current; and maintaining the connection to the second cellular network or reestablishing connection to the first cellular network, based on comparison of the first communication environment with the second communication environment or whether the second current is less than the first current.