Active Antenna Channel Anomaly Detection Without Calibration

Solution Overview

Problem

Current active antenna systems require a dedicated calibration channel for real-time detection of transmission/reception channel anomalies, leading to increased design complexity, cost, and power consumption.

Innovation Solution

A method and device that detect and repair channel anomalies in active antennas by analyzing data from feedback coupling channels or reception channels, eliminating the need for an extra calibration channel, and automatically adjusting beam forming parameters to maintain system operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a dedicated calibration channel is used to detect transmission/reception channel anomalies in real time, then the reliability of channel state detection is improved, but the device complexity and cost increase due to extra analog and digital circuits

Engineering Contradiction:

Improvechannel state detection reliabilityVSAvoidcircuit design complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by enabling existing data service transportation channels to perform dual functions: both data transmission and channel anomaly detection. The same channel infrastructure is used for both purposes, eliminating the need for dedicated calibration channels and reducing device complexity while maintaining detection reliability

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system applies self-service by using its own operational channels (data service transportation channels) to detect anomalies in itself. The existing channel infrastructure serves its primary data transmission function while simultaneously performing self-diagnosis for anomaly detection, eliminating the need for separate detection infrastructure

Inventive Principle:

Principle #25Self-service

2Measurement precision

If a dedicated calibration channel is implemented for real-time channel anomaly detection, then the measurement precision of channel state is improved, but the power consumption increases due to additional circuits operating continuously

Engineering Contradiction:

Improvechannel state measurement precisionVSAvoidpower consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent applies universality by enabling existing data service transportation channels to perform dual functions: both data transmission and channel anomaly detection. The same channel infrastructure is used for both purposes, eliminating the need for dedicated calibration channels and reducing device complexity while maintaining detection reliability

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system applies self-service by using its own operational channels (data service transportation channels) to detect anomalies in itself. The existing channel infrastructure serves its primary data transmission function while simultaneously performing self-diagnosis for anomaly detection, eliminating the need for separate detection infrastructure

Inventive Principle:

Principle #25Self-service

3Device complexity

If data service transportation channels are used for anomaly detection instead of dedicated calibration channels, then the device complexity and cost are reduced, but the measurement precision of channel state may be affected

Engineering Contradiction:

Improvecircuit design complexityVSAvoidchannel state measurement precision

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The patent applies feedback by analyzing feedback signals that are inherently present in the data service transportation channels. These feedback signals contain information about channel state that can be extracted and used for anomaly detection, maintaining measurement precision without requiring additional dedicated calibration infrastructure

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent uses the existing data service transportation channel as an intermediary that carries both data and channel state information. By extracting channel state information from the data transmission process itself, the system achieves accurate measurement without needing separate calibration channels

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS9281998B2Method and device for detecting and repairing channel anomaly of active antenna

Publication Date: 2016.03.08 XIAN ZHONGXING NEW SOFTWARE

AI summary

The present disclosure provides a method and device for detecting and repairing a channel anomaly of an active antenna, and the method includes: an operation state of a transmission channel or a reception channel is determined by analyzing in real time data of a feedback coupling channel or data of the reception channel, if the operation state is anomalous, an anomaly protection is performed and an alarm is reported; a level of the alarm and a reason causing the alarm are determined, if data of the transmission/reception channel are anomalous and the anomaly protection is performed, a current antenna beam forming parameter is stored and the antenna beam forming parameter is set to zero; after the alarm has been eliminated, a stored valid antenna beam forming parameter is set to a valid value; and if a transmission/reception analog channel operates anomalously and the anomaly protection is performed, the antenna beam forming parameter is re-acquired and an acquired valid antenna beam forming parameter is configured. The present disclosure can detect states of multiple transmission/reception channels of an active antenna without an extra calibration channel, thus reducing the design cost of a system.