Wireless Terminal Thermal Control via Dynamic Power Adjustment
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Solution Overview
Problem
Conventional wireless communication terminals face challenges in effectively controlling temperature within a safe range during transmission operations, leading to potential overheating and reduced lifespan due to inadequate heat management techniques.
Innovation Solution
A wireless communication terminal equipped with a temperature detecting unit, transmission power detecting unit, and a control unit that utilizes stored temperature variation information to adjust transmission power and schedule data transmission to prevent temperature from exceeding a predetermined threshold, ensuring continuous operation within a safe temperature range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If transmission power is increased to improve communication performance, then communication quality is improved, but temperature increases causing overheating
Solution Approach 1:
The patent implements dynamic transmission power adjustment based on real-time temperature monitoring. The control unit continuously adjusts transmission power levels according to temperature feedback, transitioning from static fixed power to dynamic adaptive power control, thereby resolving the contradiction between maintaining high transmission power for communication quality and reducing power to prevent overheating
Solution Approach 2:
The patent employs a feedback mechanism where temperature is continuously monitored by a temperature sensor, and the control unit uses this feedback information to adjust transmission power. This closed-loop control system allows the terminal to automatically reduce power when temperature exceeds thresholds and increase power when temperature is acceptable, balancing communication performance and thermal management
2Temperature
If transmission power is reduced to suppress heat generation, then temperature is controlled, but communication performance deteriorates
Solution Approach 1:
The system dynamically adjusts transmission power based on real-time temperature conditions and communication requirements. Rather than fixed reduced power, the system optimizes power levels adaptively, maintaining sufficient transmission power for acceptable communication performance while reducing power only when necessary to prevent overheating, thus resolving the contradiction between temperature control and communication quality
Solution Approach 2:
The patent changes operational parameters including transmission power levels, transmission timing schedules, and power adjustment rates based on temperature conditions. By varying these parameters dynamically, the system achieves temperature control without permanently sacrificing communication performance, as parameters can be optimized to maintain acceptable service quality while managing thermal load
3Productivity
If continuous transmission is maintained to improve productivity, then communication efficiency is improved, but temperature accumulation causes overheating
Solution Approach 1:
The patent implements periodic transmission scheduling with controlled intervals between transmission bursts. The control unit schedules transmission periods and non-transmission periods alternately, allowing heat dissipation during non-transmission intervals while maintaining high communication efficiency during active periods. This periodic action pattern resolves the contradiction between continuous transmission for productivity and periodic interruption for thermal management
Solution Approach 2:
The system performs preliminary temperature assessment and schedules transmission periods in advance based on predicted temperature trends and communication requirements. By planning transmission schedules beforehand considering thermal conditions, the system optimizes both productivity and temperature control, avoiding reactive power reduction that would sacrifice communication efficiency
Data Source
AI summary
A wireless communication terminal includes a transmitting unit transmitting data to a wireless base station, a temperature detecting unit detecting a terminal temperature of the inside of the wireless communication terminal, a transmission power detecting unit detecting a transmission power, a memory unit storing plural sets of terminal temperature variation information, and a control unit changing the transmission power based on a state of communication with a wireless base station. The control unit selects and reads one of the plural sets of terminal temperature variation information from a memory unit, based on an ambient temperature, a transmission power, and a changed one of predetermined transmission powers. The control unit controls the transmission state of the data based on the selected one of the plural sets of terminal temperature variation information, so as to prevent the terminal temperature from increasing over an upper limit of a predetermined operation guarantee temperature range.