Dynamic SNR Mode Switching for 256-QAM Receiver Power Optimization
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Solution Overview
Problem
Current wireless communication systems, particularly in LTE technology, face challenges in efficiently managing signal-to-noise ratio (SNR) modes to optimize power consumption and data transmission, as they often require high SNR for higher modulation schemes like 256-QAM, which increases power consumption and is not efficiently toggled between low and high SNR modes.
Innovation Solution
A method where user equipment (UE) determines to change its mode of operation from a low SNR-low current mode to a high SNR-high current mode by sending channel quality information (CQI) to the base station, indicating its ability to receive data at a higher order modulation and coding scheme (MCS), and adjusts its gain states to achieve a low noise figure and low gain simultaneously, allowing for higher SNR operation when capable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE operates at high SNR mode to support higher order modulation schemes like 256-QAM, then data transmission efficiency and throughput are improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic switching between low SNR and high SNR operating modes based on real-time channel conditions. The UE monitors downlink SNR measurements and toggles between operation modes accordingly, allowing the system to adaptively optimize the balance between throughput and power consumption rather than operating statically at one mode
Solution Approach 2:
The patent changes key operating parameters including SNR mode, gain states, and modulation schemes based on channel quality. By adjusting these parameters dynamically according to downlink SNR measurements, the system achieves efficient adaptation between power-saving and high-throughput states
2Use of energy by moving object
If the UE switches between low SNR and high SNR modes opportunistically, then power consumption is optimized, but system complexity increases
Solution Approach 1:
The patent employs feedback mechanisms where the UE monitors downlink SNR measurements and sends CQI reports to the base station. This feedback loop enables the system to make informed decisions about mode switching based on actual channel conditions, reducing unnecessary complexity while maintaining optimization effectiveness
Solution Approach 2:
The UE autonomously determines when to switch between operation modes based on its own SNR measurements and capabilities. This self-service approach reduces the need for complex network-side control logic, as the UE independently manages its own mode transitions based on local observations
3Productivity
If the UE uses higher order modulation schemes, then throughput is improved, but the requirement for high SNR increases power consumption
Solution Approach 1:
The patent dynamically adjusts modulation schemes based on real-time SNR conditions. The UE only employs higher order modulation like 256-QAM when channel conditions support it, avoiding unnecessary power consumption during periods when the channel quality is insufficient for reliable high-order modulation
Solution Approach 2:
The patent changes modulation order as a controllable parameter based on SNR measurements. By adjusting this parameter dynamically, the system achieves efficient adaptation between power-saving and high-throughput states, matching modulation complexity to actual channel capabilities
Data Source
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AI summary
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines to change a mode of operation from a first signal-to-noise ratio (SNR) mode to an increased SNR mode, sends channel quality information (CQI) to a base station indicating an ability to receive data at the increased SNR, and receives the data from the base station according to a higher order modulation and coding scheme (MCS) corresponding to the increased SNR when the base station is capable of providing the data at the higher order MCS..