Multi-Channel RF Correction for Fast Calibration and Precise Alignment
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Solution Overview
Problem
Inconsistencies in radio frequency channels due to component variations and ambient temperatures lead to signal amplitude, phase, and frequency discrepancies, degrading communication quality in communication systems.
Innovation Solution
A method and apparatus that corrects radio frequency channels using both hardware correction based on first information from a correction circuit and air interface correction based on second information from terminal devices, ensuring precise alignment and beamforming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If hardware correction based on first information from correction circuit is used, then correction speed is improved, but correction precision deteriorates due to inability to reflect actual air interface channel conditions
Solution Approach 1:
The correction process is divided into two distinct stages: hardware correction using first information from the correction circuit for rapid initial correction, and air interface correction using second information from terminal devices for precise final correction. This segmentation allows each method to operate in its optimal domain, resolving the contradiction between speed and precision.
Solution Approach 2:
Hardware correction is performed as a preliminary action before air interface correction. The first information from the correction circuit provides an initial correction that prepares the system for the subsequent precise correction using second information from the air interface, thereby improving overall correction precision while maintaining efficiency.
2Measurement precision
If air interface correction based on second information from terminal devices is used, then correction precision is improved, but system complexity and signaling overhead increase
Solution Approach 1:
The patent merges hardware correction and air interface correction into a unified two-stage correction system. The first information from the correction circuit and second information from terminal devices are combined sequentially, allowing the system to achieve high precision correction while managing complexity through structured integration of multiple correction sources.
Solution Approach 2:
The correction system dynamically adapts by selecting different correction methods based on actual channel conditions. The network device can flexibly switch between relying more on hardware correction or air interface correction depending on the situation, making the system complexity adaptive rather than static.
3Measurement precision
If both hardware correction and air interface correction are applied, then correction precision is improved, but processing time and signaling overhead increase
Solution Approach 1:
Hardware correction is executed as a preliminary action that provides rapid initial correction before air interface correction begins. This preliminary correction reduces the amount of work needed in the subsequent air interface correction stage, thereby reducing overall processing time while maintaining high precision.
Solution Approach 2:
The correction process is segmented into two time-efficient stages: a fast hardware correction stage using first information, and a precise air interface correction stage using second information. This segmentation allows the system to optimize processing time by performing simple corrections quickly and reserving more complex corrections for when they are truly needed.
Data Source
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AI summary
This application provides a correction method, an apparatus, and a storage medium, and may be applied to a communication apparatus. The method includes: correcting, based on first information obtained by a correction circuit, M radio frequency channels deployed in a communication apparatus, where M is an integer greater than 1; and correcting the M radio frequency channels based on second information obtained through air interface transmission, to improve correction effects of each radio frequency channel.