Communication Power Control via ACLR Feedback
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Solution Overview
Problem
Conventional electronic devices consume excessive power due to setting the highest power level for communication modules regardless of channel conditions, leading to inefficient power consumption and interference in wireless communication systems.
Innovation Solution
An electronic device with a controller that adjusts the amplification current of a communication channel based on the measured Adjacent Channel Leakage Ratio (ACLR), optimizing power levels according to channel characteristics to reduce unnecessary power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the highest power level is set for the communication module, then reliable communication can be ensured, but power consumption increases excessively
Solution Approach 1:
The communication module dynamically adjusts its power level based on real-time channel conditions. The controller monitors ACLR values and modifies the amplification current accordingly, transitioning from static highest-power operation to adaptive power control that matches actual communication needs.
Solution Approach 2:
The system changes the power level parameter of the communication module based on measured ACLR values. When ACLR indicates good channel conditions, the power level is reduced; when ACLR deteriorates, power level is increased, optimizing the balance between reliability and energy consumption.
2Reliability
If high power is used for communication, then signal quality is improved, but interference to adjacent channels increases
Solution Approach 1:
The system implements a feedback mechanism where the ACLR value, which measures adjacent channel leakage, is continuously monitored and fed back to the controller. The controller uses this feedback to adjust the amplification current, creating a closed-loop control system that minimizes interference while maintaining signal quality.
Solution Approach 2:
The system takes preliminary action by measuring ACLR before making power adjustments and uses this information to prevent excessive interference. By proactively adjusting power levels based on predicted channel conditions, the system avoids generating harmful interference to adjacent channels.
3Stability of the object's composition
If fixed highest power level is set, then communication stability is ensured, but power consumption efficiency decreases
Solution Approach 1:
The communication module transitions from static to dynamic power control. The controller continuously monitors ACLR and adjusts amplification current in real-time, allowing the system to maintain stability through adaptive control rather than fixed high-power operation, thereby improving energy efficiency.
Solution Approach 2:
The power level parameter is dynamically changed based on ACLR measurements. The system maintains communication stability by adjusting power parameters adaptively rather than using fixed highest power, reducing energy loss while ensuring reliable communication under varying channel conditions.
Data Source
AI summary
An electronic device includes a communication interface configured to establish a communication channel; and a controller configured to adjust an amplification current of a signal outputted through the communication channel corresponding to a measured Adjacent channel leakage ratio (ACLR) based on the communication channel, wherein the controller is configured to adjust a size of the amplification current corresponding to a difference between the measured ACLR and a specified condition.