Receiver Circuit Phase Difference Control for Power Management
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Solution Overview
Problem
Existing receiver circuits with digital phase-locked loops face challenges in efficiently controlling and turning off the receiver based on signal quality, leading to inefficient power consumption and potential data loss due to noise or erroneous signals.
Innovation Solution
A monolithically integrated semiconductor chip circuit with a digital control unit and evaluation circuit that determines the phase difference between a complex baseband signal and precalculated phases, using threshold comparisons and counters to decide when to turn off the receiver, ensuring continuous signal quality assessment and adaptive power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiver circuit continuously monitors signal quality to ensure reliable data reception, then the reliability is improved, but the power consumption increases
Solution Approach 1:
The receiver circuit dynamically adjusts its monitoring behavior based on signal conditions. The control unit continuously evaluates phase differences and compares them against thresholds, enabling the system to adaptively determine when signal quality deteriorates and when the receiver can be safely turned off, optimizing the balance between reliability and power consumption
Solution Approach 2:
The system implements a feedback mechanism where the control unit continuously monitors the phase difference between the complex baseband signal and precalculated phases, compares the monitored values against thresholds, and uses this feedback to control the turning off of the receiver circuit, ensuring reliable operation while saving power
2Use of energy by moving object
If the receiver circuit turns off to reduce power consumption, then the energy efficiency is improved, but the risk of data loss increases due to noise or erroneous signals
Solution Approach 1:
The system performs preliminary evaluation of signal quality by continuously monitoring phase differences before turning off the receiver circuit. The control unit evaluates whether the phase difference exceeds thresholds and determines signal quality deterioration in advance, ensuring that the receiver is only turned off when signal conditions are confirmed to be poor, thus preventing data loss
Solution Approach 2:
The feedback mechanism ensures that the receiver circuit is turned off only after continuous monitoring confirms signal quality deterioration. The control unit uses real-time phase difference evaluation to make informed decisions, preventing premature shutdown that could result in data loss while still achieving power savings when appropriate
3Reliability
If the receiver circuit continuously operates to maintain data reception, then the data reception reliability is improved, but the battery life decreases
Solution Approach 1:
The receiver circuit operates dynamically, switching between active monitoring and powered-off states based on signal quality assessment. The control unit continuously evaluates phase differences and determines when the receiver can be safely turned off, extending battery life while maintaining data reception reliability during active operation
Solution Approach 2:
The system implements periodic monitoring of signal quality through continuous phase difference evaluation. The control unit periodically assesses whether the phase difference exceeds thresholds and controls the receiver circuit accordingly, enabling the system to extend battery life through strategic shutdowns while maintaining reliable data reception during active periods
Data Source
AI summary
A circuit, use, and method for controlling a receiver circuit is provided, wherein a complex baseband signal is generated from a received signal, a phase difference between a phase of the complex baseband signal and a phase precalculated from previous sampled values is determined, the phase difference is compared with a first threshold, a number is determined by counting the exceedances of the first threshold by the phase difference, a number of the counted exceedances is compared with a second threshold, and the receiver circuit is turned off if the number of counted exceedances exceeds the second threshold within a time period.