Millimeter Wave Terminal Dynamic Calibration for Signal Quality
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Solution Overview
Problem
Millimeter wave terminal devices face challenges with pre-distortion gain function stability due to external thermal noise, phase noise, and interference, leading to poor transmit signal quality, reception performance, and interference with other terminals, as static pre-distortion technologies fail to dynamically adjust to environmental changes.
Innovation Solution
A terminal calibration method where the device detects calibration trigger conditions and performs real-time calibration, or reports calibration capability information to a network device for configuration, allowing dynamic adjustment of calibration parameters to improve signal quality and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If static pre-distortion gain function is used in millimeter wave terminal, then the terminal can be manufactured with simple calibration process, but the transmit signal quality deteriorates due to environmental changes
Solution Approach 1:
The patent transitions from static pre-distortion gain function to dynamic calibration by introducing calibration trigger conditions that are evaluated in real-time. The terminal device performs calibration procedures when specific conditions are met (e.g., temperature changes, signal quality thresholds), allowing the system to adapt to environmental changes while maintaining manufacturing simplicity.
Solution Approach 2:
The patent implements feedback mechanisms where the terminal device monitors its own performance metrics and environmental parameters. Based on this feedback, the device determines whether to initiate calibration procedures, creating a closed-loop system that maintains signal quality without requiring complex manufacturing processes.
2Reliability
If real-time calibration is performed dynamically, then the transmit signal quality is improved, but the device complexity increases
Solution Approach 1:
The patent pre-configures calibration trigger conditions and calibration procedures during device manufacturing. The framework for dynamic calibration is established in advance, but the actual calibration execution is triggered only when needed, reducing the complexity of continuously active calibration systems while maintaining signal quality.
Solution Approach 2:
Instead of performing full calibration continuously, the patent applies calibration selectively based on trigger conditions. This partial action approach maintains signal quality when needed while avoiding the complexity and resource consumption of continuous calibration, achieving a balance between reliability and device complexity.
3Manufacturing precision
If pre-distortion gain function is written in production design stage, then the manufacturing precision is improved, but the adaptability to environmental changes deteriorates
Solution Approach 1:
The patent maintains the precision of pre-written distortion gain functions while adding dynamic adaptability through conditional calibration triggers. The system can switch between using the pre-configured functions and performing recalibration based on environmental conditions, combining manufacturing precision with environmental adaptability.
Solution Approach 2:
The patent allows the distortion gain function parameters to be updated when calibration trigger conditions are met. This enables the system to maintain the manufacturing precision of initial parameter settings while adapting to environmental changes by modifying parameters during operation, thus achieving both precision and versatility.
Data Source
AI summary
Embodiments of the present application provide a terminal calibration method, apparatus, device, and storage medium. The method includes: sending to a network device calibration capability information of a terminal device; receiving calibration configuration information which is determined by the network device based on the calibration capability information; and performing a calibration procedure according to the calibration configuration information.