Uplink Transmission Power Control for 5G Device Overheating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The overheating issue in electronic devices due to high frequency band usage in 5G communication, leading to potential user discomfort and component damage, is addressed by adjusting maximum transmission power based on temperature parameters.
Innovation Solution
An electronic device with a temperature sensor and processor adjusts maximum transmission power of uplink data by identifying modulation and coding scheme (MCS) and resource blocks (RBs) to reduce peak current and overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If maximum transmission power is increased to meet high data throughput requirements in 5G communication, then data transmission rate is improved, but temperature of the electronic device increases causing overheating
Solution Approach 1:
The patent implements dynamic transmission power adjustment by continuously monitoring temperature through a temperature sensor and adapting the maximum transmission power accordingly. When temperature exceeds a threshold, the system dynamically reduces transmission power to prevent overheating, and restores power when temperature normalizes, creating a responsive feedback control mechanism that balances performance and thermal management
Solution Approach 2:
The system changes the transmission power parameter based on temperature conditions. By identifying modulation and coding scheme (MCS) indices and resource blocks (RBs) under different temperature states, the patent adjusts physical layer parameters to control peak current and reduce heat generation while maintaining acceptable data transmission rates
2Temperature
If transmission power is reduced to lower peak current and reduce overheating, then temperature is controlled, but data transmission rate deteriorates
Solution Approach 1:
The patent applies partial power reduction rather than complete power cutoff when temperature thresholds are exceeded. By selectively adjusting transmission power based on temperature severity and maintaining MCS/RB configurations that preserve acceptable data rates, the system achieves thermal control while minimizing impact on productivity through controlled, partial action
3Productivity
If multiple antenna modules are used to achieve highly directional beamforming for mmWave communication, then data transmission capability is improved, but power consumption and heat generation increase
Solution Approach 1:
The system performs preliminary temperature monitoring and proactive transmission power adjustment before critical overheating occurs. By anticipating thermal buildup from multiple antenna module operation and pre-adjusting power levels, the patent prevents excessive heat generation while maintaining data transmission capability, avoiding the need for aggressive power reduction later
Data Source
AI summary
According to various embodiments, an electronic device may comprise: a temperature sensor; a wireless communication circuit; and a processor electrically connected to the wireless communication circuit, wherein the processor is configured to: receive a temperature sensed by the temperature sensor; determine a first maximum transmission power as a maximum transmission power of uplink transmission data to be transmitted through the wireless communication circuit, identify a modulation and coding scheme (MCS) index and a number of resource blocks (RBs), when the received temperature is higher than a predetermined value, based on the identified the MCS index and the number of RBs, determine a second maximum transmission power, and change the first maximum transmission power to the second maximum transmission power, wherein the second maximum transmission power is lower than the first maximum transmission power.