Electronic Device Power Setting for SAR-Compliant Network Sharing
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Solution Overview
Problem
Existing communication products face challenges in meeting regulatory power output limits while maintaining performance across various usage scenarios without increasing design complexity and cost by adding multiple sensors.
Innovation Solution
A power setting method that utilizes a processor to dynamically adjust output power based on usage scenarios detected by intrinsic modules and executable functions, such as network sharing, receiving, distance sensing, and gravity sensing, to ensure compliance with specific absorption rate (SAR) tests without additional sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If grip sensors or P-sensors are added to hardware design to identify usage scenarios, then output power can be adjusted appropriately, but design difficulty and cost increase
Solution Approach 1:
The patent makes intrinsic modules (processor, distance sensing module, gravity sensing module) perform multiple functions. The processor not only executes general computing tasks but also determines usage scenarios by analyzing data from distance and gravity sensors. This multi-functionality eliminates the need for dedicated grip sensors or P-sensors, resolving the contradiction between adaptability and device complexity
Solution Approach 2:
The patent enables the electronic device to self-identify usage scenarios using its existing intrinsic modules without requiring external assistance or additional specialized sensors. The processor autonomously analyzes data from built-in distance and gravity sensing modules to determine whether the device is in pocket, handheld, or other usage scenarios, and automatically adjusts output power accordingly
2Reliability
If the safest output power setting (minimum output power) is selected, then regulatory restrictions are met, but performance in various usage scenarios is compromised
Solution Approach 1:
The patent dynamically adjusts the output power setting based on the identified usage scenario. Instead of using a fixed minimum power setting, the system adapts the power level in real-time: using conservative power settings when in pocket mode to ensure safety, and allowing higher power output when in handheld mode to optimize communication performance. This dynamic adjustment resolves the contradiction between reliability and productivity
Solution Approach 2:
The patent changes the output power parameter according to different usage scenarios determined by the processor. The system switches between different power levels (first power level for pocket scenario, second power level for handheld scenario) based on analysis of distance and gravity sensing data, thereby achieving both regulatory compliance and optimal performance across different usage conditions
3Measurement precision
If more sensors are added to allow the communication product to determine output power, then usage scenario identification improves, but design complexity and cost increase
Solution Approach 1:
The patent makes intrinsic modules (processor, distance sensing module, gravity sensing module) perform multiple functions. The processor not only executes general computing tasks but also determines usage scenarios by analyzing data from distance and gravity sensors. This multi-functionality eliminates the need for dedicated grip sensors or P-sensors, resolving the contradiction between adaptability and device complexity
Solution Approach 2:
The patent uses existing intrinsic modules (distance sensing module and gravity sensing module) as intermediaries to infer usage scenarios. Instead of directly adding grip sensors or P-sensors, the system uses data from these existing sensors as intermediate information to indirectly determine whether the device is in pocket, handheld, or other usage scenarios, thereby achieving accurate detection without increasing sensor quantity
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
Effectively adjusts output power to meet regulatory limits and performance needs across different usage scenarios, reducing design complexity and cost by eliminating the need for extra sensors.
Implementation Method 1
a distance sensing module configured to detect a distance between the electronic device and an object
Implementation Method 2
a gravity sensing module configured to detect a gravity sensing signal
Data Source
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AI summary
A power setting method and an electronic device (100) are provided. The power setting method includes: determining in a situation that, according to an enable signal corresponding to a network sharing function of the electronic device (100), the network sharing function is enabled; and in response to the network sharing function being enabled, setting an output power of the electronic device (100) according to a first setting mode.