Automated RF Transceiver Calibration with Model and Circuit Selection

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Solution Overview

Problem

The existing manual calibration methods for radio frequency transceivers in 5G systems are cumbersome, time-consuming, and result in inconsistent performance, leading to increased development costs and failure to meet 3GPP specifications due to human error.

Innovation Solution

A calibration method and system that utilizes a controller to automatically perform multiple transmission tests, selecting optimal calibration models, parameters, and circuit configurations to improve performance, reducing manual testing hours and enhancing consistency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual calibration method is used, then antenna engineers can verify and record EVM results, but the process is cumbersome and time-consuming

Engineering Contradiction:

ImproveEVM result verificationVSAvoidcalibration time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The calibration system performs self-calibration automatically without requiring manual intervention from antenna engineers. The controller executes calibration software modules that autonomously perform transmission tests, select calibration models, and adjust parameters, eliminating the need for manual EVM verification and recording processes.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical operations with automated electronic control. The controller uses software modules to automatically execute calibration procedures, select from multiple calibration models, and adjust parameters electronically, substituting the manual process of verifying and recording EVM results with automated digital operations.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If manual calibration method is used, then calibration parameters can be input and verified, but multiple manual comparisons and data verifications are required

Engineering Contradiction:

Improvecalibration parameter accuracyVSAvoidcalibration process complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The calibration system incorporates feedback mechanisms where the controller receives test results from transmission tests, compares them against specification requirements, and automatically adjusts calibration parameters. The system provides feedback loops that enable automatic selection of optimal calibration models and parameters without requiring manual comparison and verification.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The calibration system integrates multiple functions into a single automated platform. The controller executes various calibration software modules that can perform different types of calibration tests, select from multiple calibration models, and adjust different parameters, eliminating the need for separate manual comparison and verification processes for each calibration aspect.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If manual calibration method is used, then calibration can be performed, but performance of calibrated RRU products is inconsistent

Engineering Contradiction:

Improvecalibration performance consistencyVSAvoidcalibration time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The automated calibration system ensures consistent performance by eliminating human variability in calibration procedures. The controller executes standardized automated tests and selection criteria that produce repeatable results, ensuring that calibrated RRU products meet specification requirements consistently without the performance variations introduced by manual calibration.

Inventive Principle:

Principle #25Self-service

4Ease of manufacture

If manual calibration method is used, then calibration parameters can be selected, but additional development costs on manpower are required

Engineering Contradiction:

Improvecalibration process simplicityVSAvoidmanpower resources

Core Design Contradiction:

Ease of manufactureVSQuantity of substance

Solution Approach 1:

The calibration system is designed to be self-sufficient, performing all calibration operations automatically without requiring skilled antenna engineers or additional manpower resources. The automated controller executes calibration tests, selects optimal parameters, and adjusts settings independently, eliminating the need for human expertise and associated development costs.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12413316B2Calibration method and calibration system for radio frequency transceiver

Publication Date: 2025.09.09 WISTRON NEWEB CORP

AI summary

A calibration method for a radio frequency (RF) transceiver and a calibration system thereof are provided. The calibration method includes configuring a controller to perform a first transmission test on the RF transceiver and generate a plurality of model test results for selecting a target calibration model from a plurality of reference calibration models to calibrate the RF transceiver; configuring the controller to perform a second transmission test on the RF transceiver and generate a plurality of parameter test results for selecting a target parameter set from a plurality of reference parameters to calibrate the RF transceiver; and configuring the controller to perform a third transmission test on the RF transceiver and generate a plurality of circuit test results for selecting a target simulation circuit from a plurality of reference simulation circuits to match the target simulation circuit to the RF transceiver.