Dynamic Power Adaptation for Wireless Transceivers
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Solution Overview
Problem
Conventional Bluetooth technology consumes significant power due to inefficient RF power amplifiers and constant power modes, leading to reduced battery life in mobile devices, especially in dynamic environments with varying communication distances and interference.
Innovation Solution
Implementing dynamic power adaptation by analyzing current signal characteristics within data packets, adjusting power consumption based on channel quality indicators (CQI) to optimize power modes, reducing unnecessary processing and minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If constant power modes are used in Bluetooth transceivers, then communication reliability is maintained, but power consumption increases significantly
Solution Approach 1:
The patent implements dynamic power adaptation by continuously monitoring channel quality indicators (CQI) and adjusting the power mode accordingly. The system transitions between multiple power modes (first power mode for good channel conditions, second power mode for poor channel conditions) based on real-time channel assessment, replacing static constant power modes with adaptive dynamic power control.
Solution Approach 2:
The system changes the power consumption parameter dynamically based on channel conditions. When CQI indicates good channel quality, the system operates in a lower power mode with reduced transmit power. When CQI deteriorates, the system switches to a higher power mode to maintain communication reliability, thus optimizing the power parameter according to actual channel state.
2Reliability
If maximum power mode is used continuously, then communication quality is maintained in all conditions, but battery life is reduced
Solution Approach 1:
The patent employs dynamic power mode switching that adapts to changing channel conditions. The system monitors CQI continuously and adjusts power modes dynamically, operating in lower power modes during good channel conditions to conserve battery, and switching to maximum power mode only when necessary to maintain communication quality during poor channel conditions.
Solution Approach 2:
The system varies the power consumption parameter based on channel quality assessment. By changing power modes from low to high depending on CQI thresholds, the system extends battery life during favorable conditions while ensuring communication quality is maintained when channel conditions deteriorate.
3Use of energy by moving object
If dynamic power adaptation is implemented, then power consumption is reduced, but system complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors channel quality indicators (CQI) and uses this feedback to adjust power modes. The CQI measurement results feed back to the power mode selection logic, creating a closed-loop control system that automatically adapts power consumption to actual channel conditions without requiring complex manual intervention.
Solution Approach 2:
The system performs self-adjustment of power modes based on autonomous CQI monitoring and evaluation. The transceiver automatically assesses channel conditions and selects appropriate power modes without external control, enabling the system to serve itself in optimizing power consumption while maintaining communication quality.
4Use of energy by moving object
If power modes are adjusted frequently, then power consumption is optimized for varying conditions, but processing overhead increases
Solution Approach 1:
The patent implements dynamic power mode adjustment that responds to changing channel conditions. The system monitors CQI and adjusts power modes dynamically, but incorporates hysteresis and threshold-based decision logic to avoid excessive switching. This balances the need to adapt to varying conditions with the need to limit processing overhead from frequent mode transitions.
Data Source
AI summary
Technologies directed to improving power for wireless transceivers are described. One method determines, in a first mode, a first value associated with a wireless link and a second values associated with the wireless link, the first value being indicative of a first metric and the second value being indicative of a second metric different from the first metric. The first value and the second value collectively indicate a category of channel quality for the wireless link. The method determines that the wireless device can operate in a second mode for subsequent data based on the category of channel quality, wherein in the second mode the wireless device consumes less power than in the first power mode. The method receives, in the second mode, second data over the wireless link.