Call Codec Bitrate Control for Smartphone Heat Management
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Solution Overview
Problem
Electronic devices, particularly those with flexible or wearable designs, face challenges with heat dissipation and increased power consumption due to complex structures and high data throughput requirements, leading to heat generation and potential call disconnections.
Innovation Solution
Incorporating a temperature sensor and processor to monitor and adjust bit rates of codecs, block specific data transmissions, and manage voice activity detection operations to reduce heat generation and maintain stable call connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data transmission throughput is increased to meet high performance requirements, then communication efficiency is improved, but heat generation and power consumption increase
Solution Approach 1:
The patent dynamically adjusts the bit rate of the voice codec based on real-time temperature monitoring. When temperature exceeds a threshold during data transmission, the system reduces the codec bit rate from high to low, thereby reducing power consumption and heat generation while maintaining acceptable call quality. This dynamic adaptation resolves the contradiction between maintaining high throughput and reducing energy use.
Solution Approach 2:
The system changes the operating parameters of the communication circuit by adjusting the codec bit rate in response to temperature conditions. This parameter change allows the system to operate at lower power consumption levels when thermal constraints are encountered, effectively managing the trade-off between data transmission performance and energy consumption.
2Productivity
If complex communication structures are used to provide high data throughput and low latency, then communication performance is improved, but heat dissipation becomes difficult
Solution Approach 1:
The patent implements a feedback mechanism where a temperature sensor continuously monitors the device temperature during communication operations. When the temperature exceeds a predetermined threshold, the system automatically reduces the codec bit rate, which in turn reduces the computational load and heat generation. This closed-loop feedback system effectively manages thermal conditions while maintaining communication performance.
Solution Approach 2:
The communication system dynamically adapts its operating characteristics by adjusting the codec bit rate based on real-time temperature feedback. This dynamic adjustment allows the system to reduce heat generation during high-performance operations without completely shutting down communication functions, resolving the contradiction between high data throughput and heat dissipation.
3Reliability
If high bit rate codec is used for data transmission, then call quality is improved, but current consumption increases
Solution Approach 1:
The system changes the codec bit rate parameter based on temperature conditions. When temperature is within acceptable ranges, the system uses high bit rates for better call quality. When temperature exceeds thresholds, the system switches to lower bit rates to reduce current consumption, accepting a trade-off in call quality to manage thermal and power constraints.
Solution Approach 2:
The codec bit rate is dynamically adjusted during call operations based on real-time temperature monitoring. This dynamic parameter adjustment allows the system to optimize the balance between call quality and power consumption according to thermal conditions, resolving the contradiction between maintaining high call quality and reducing current consumption.
4Reliability
If continuous data transmission is maintained during calls, then communication reliability is improved, but heat generation increases causing call disconnections
Solution Approach 1:
The patent employs temperature feedback control where the system monitors temperature during continuous data transmission and automatically adjusts the codec bit rate when temperature thresholds are exceeded. This feedback mechanism prevents excessive heat generation that would cause call disconnections, thereby maintaining call connection stability through adaptive parameter adjustment.
Solution Approach 2:
The system proactively reduces the codec bit rate before thermal conditions become critical by monitoring temperature trends and adjusting parameters in advance. This preemptive action prevents heat generation from reaching levels that would cause call disconnections, ensuring continuous reliable operation.
Data Source
AI summary
An electronic device is provided. The electronic device includes a temperature sensor, a communication circuit, a memory, and a processor. The processor identifies whether the temperature measured through the temperature sensor satisfies a specified condition, in a state of performing data transmission or reception through a call channel between an external electronic device and the electronic device, adjusts the bit rate of a codec that encodes data to be transmitted through the call channel when the measured temperature satisfies the specified condition, and blocks data transmission and/or reception through a radio bearer mapped to a packet data network (PDN) corresponding to an internet protocol (IP) data type among data to be transmitted by the electronic device.