Communication Device Power Adjustment for SAR Compliance
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Solution Overview
Problem
Wireless mobile communication devices face challenges in managing simultaneous connections to multiple networks, as operating regulations for one network can affect communications in another, necessitating adjustments in transmission parameters to comply with specific absorption rate (SAR) limits and prevent intermodulation distortion.
Innovation Solution
A communication device monitors connections to multiple networks and adjusts transmission power levels and frequencies dynamically based on detected conditions, such as connection status and regulatory requirements, using a processor and monitoring module to implement adjustments in transmission power and channel settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the communication device maintains simultaneous connections to multiple networks with high transmission power, then communication quality and data rate are improved, but SAR limits are exceeded and intermodulation distortion occurs
Solution Approach 1:
The patent implements dynamic adjustment of transmission power levels based on real-time detection of network conditions. The device continuously monitors connections to multiple networks and adapts power levels accordingly, transitioning from static to dynamic power control to resolve the contradiction between maintaining high communication efficiency and complying with SAR limits.
Solution Approach 2:
The system changes transmission parameters (power level, frequency channel) based on detected network conditions. When interference or SAR concerns are detected, the device adjusts these parameters to reduce harmful effects while maintaining acceptable communication quality, directly addressing the contradiction through parameter optimization.
2Reliability
If the communication device increases transmission power to maintain connection quality, then communication reliability is improved, but intermodulation distortion increases affecting other networks
Solution Approach 1:
The device implements a feedback mechanism by monitoring network conditions and detecting interference levels. Based on this feedback, the system adjusts transmission power levels to prevent intermodulation distortion while maintaining connection quality. The feedback loop enables the device to respond to changing conditions and optimize the balance between reliability and harmful emissions.
Solution Approach 2:
The system takes preliminary anti-action by proactively reducing transmission power when conditions indicate potential intermodulation distortion before it occurs. By monitoring network conditions and preemptively adjusting power levels, the device prevents harmful effects rather than reacting to them after damage is done.
3Object-affected harmful factors
If the communication device dynamically adjusts transmission parameters to comply with regulations, then SAR limit compliance is improved, but device complexity increases
Solution Approach 1:
The device implements self-service by autonomously monitoring its own transmission parameters and network conditions, then automatically adjusting power levels to comply with SAR limits. The system manages its own regulatory compliance without requiring external intervention, reducing the operational burden despite increased internal complexity.
Solution Approach 2:
The patent creates a universal power management system that handles multiple networks and various regulatory requirements through a single integrated mechanism. This multi-functional approach consolidates what could be multiple separate compliance systems into one unified solution, reducing overall complexity while maintaining comprehensive regulatory adherence.
Data Source
AI summary
A system, method and device for adjusting a communication parameter for a network communicating with a communication device are provided. The method comprises: monitoring for a condition relating to a first network that has been in communication with the communication device; and determining whether an adjustment is to be implemented on a communication parameter of a second communication network that has been in communication with the communication device based on the condition and if so, implementing the adjustment to the communication parameter for the second communication network.