Multi-Standard Carrier Power Calibration via Segmented Feedback
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Solution Overview
Problem
Current power calibration methods in wireless communication systems face challenges in achieving high accuracy and compatibility across multiple network standards, leading to significant calibration errors and inefficiencies, especially in multi-mode systems.
Innovation Solution
A power calibration method that configures and combines carriers under various network standards, performs digital and analog conversions, and uses coarse and fine adjustments to ensure power gain alignment within predetermined ranges, employing a closed-loop feedback mechanism for precise power calibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If single-mode multi-carrier power detection and adjustment is used, then power calibration can be implemented for a single network standard, but calibration efficiency is low for multi-mode systems and calibration accuracy is poor due to large total calibration error
Solution Approach 1:
The patent segments the power calibration process into two distinct stages: total power calibration followed by individual carrier power calibration. This segmentation allows the system to first establish an overall power baseline and then fine-tune each carrier individually, thereby improving both multi-mode compatibility and calibration efficiency by avoiding the need to recalibrate all carriers when adjusting for different network standards
Solution Approach 2:
The patent performs preliminary total power calibration before individual carrier calibration. By pre-establishing the total power level and baseline calibration, the system reduces the complexity and time required for subsequent carrier-specific adjustments, thereby improving calibration efficiency across multiple network standards without sacrificing accuracy
2Adaptability or versatility
If single-mode multi-carrier power detection and adjustment is used, then power calibration can be implemented for a single network standard, but calibration accuracy is poor due to large total calibration error
Solution Approach 1:
The patent segments the power calibration process into two distinct stages: total power calibration followed by individual carrier power calibration. This segmentation allows the system to first establish an overall power baseline and then fine-tune each carrier individually, thereby improving both multi-mode compatibility and calibration accuracy by avoiding the need to recalibrate all carriers when adjusting for different network standards
Solution Approach 2:
The patent implements feedback mechanisms where the detected power values of individual carriers are used to adjust power allocation, and the total power detection results are used to verify overall calibration accuracy. This closed-loop feedback ensures that both total power and individual carrier powers remain within expected ranges, significantly improving calibration accuracy by detecting and correcting deviations at multiple levels
3Ease of manufacture
If total power is used for calibration, then power calibration can be implemented, but initialization operation control is poor and adjustment accuracy is low due to large total calibration error
Solution Approach 1:
The patent segments the power calibration process into two distinct stages: total power calibration followed by individual carrier power calibration. This segmentation allows the system to first establish an overall power baseline and then fine-tune each carrier individually, thereby improving both multi-mode compatibility and calibration accuracy by avoiding the need to recalibrate all carriers when adjusting for different network standards
Solution Approach 2:
The patent performs preliminary total power calibration before individual carrier calibration. By pre-establishing the total power level and baseline calibration, the system reduces the complexity and time required for subsequent carrier-specific adjustments, thereby improving calibration efficiency across multiple network standards without sacrificing accuracy
Data Source
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AI summary
Embodiments of the present invention disclose a power calibration method. The method includes: configuring various carriers under various network standards, mixing and combining the various carriers to obtain a combined signal; processing the combined signal to obtain a processed combined signal, and performing a carrier division on the processed combined signal to obtain processed carriers; detecting a power of each of the processed carriers; when the power of each of the processed carriers does not fall within a predetermined numerical range, adjusting a power gain of each of the carriers according to the power of each of the processed carriers, and returning to re-detect the power of each of the processed carriers; when the power of each of the processed carriers falls within the predetermined numerical range, ending power calibration of the carriers. Embodiments of the present invention also disclose a power calibration apparatus and a computer readable storage medium.