Receiver Power Management Using Frequency-Specific Interference Detection
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Solution Overview
Problem
Conventional wireless communication receivers consume excessive power due to reacting to interferers without frequency discrimination, leading to false detections and inefficient power usage, especially in varying data rate and interference scenarios.
Innovation Solution
Adaptive power consumption modes in RF transceivers that analyze real-time communication conditions, such as frequency-specific interference levels and data rates, to selectively use low-power or high-power receiver circuits based on threshold parameters, incorporating self-transmitted jamming detection for accurate interference analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-power receiver circuits are used to detect and respond to all interferers, then interference rejection capability is improved, but power consumption increases excessively
Solution Approach 1:
The patent applies local quality by making different parts of the receiver have different power consumption characteristics. Specifically, it uses multiple receiver circuits with different power consumption levels (low-power and high-power circuits) and selectively activates them based on local interference conditions in specific frequency regions, rather than uniformly using high-power circuits for all scenarios.
Solution Approach 2:
The patent implements dynamics by dynamically switching between low-power and high-power receiver circuits based on real-time interference detection. The system continuously monitors frequency regions and adjusts the power consumption level of the receiver circuits according to the detected interference conditions, transitioning from static to adaptive power management.
2Speed
If conventional peak-power based detection is used to switch receiver modes, then response speed to interferers is improved, but false detections increase due to lack of frequency discrimination
Solution Approach 1:
The patent applies segmentation by dividing the frequency spectrum into multiple frequency regions and independently detecting interference in each region. Instead of using a single peak-power detector for the entire bandwidth, the system segments the frequency spectrum and applies frequency-specific detection, which improves measurement precision by distinguishing between actual harmful interferers and benign spectral variations.
3Productivity
If processing speed and data communication rate are increased, then communication throughput is improved, but power consumption associated with internal data processing increases
Solution Approach 1:
The patent applies parameter changes by adjusting the power consumption parameter of the receiver circuits based on communication conditions. The system changes the operational state of the receiver from low-power to high-power mode (or vice versa) according to detected interference levels and communication requirements, thereby optimizing the trade-off between productivity and energy consumption.
Data Source
AI summary
Circuits and methods for operating a receiver in a communication system is disclosed. The receiver analyzes interference power levels at two or more frequency regions within a received signal. The receiver selects a low-power circuit based on the frequency-analyzed interference power for processing the received signal.