Faulty Antenna Port Reporting via Reference Signal Evaluation
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Solution Overview
Problem
Advanced Antenna Systems (AAS) with large antenna arrays face challenges in efficiently detecting and handling faulty antenna branches, as existing fault handling mechanisms are not suitable for these systems, leading to potential performance degradation and regulatory compliance issues.
Innovation Solution
A method and system for reporting faulty antenna ports in transmitting radio devices, where a receiving radio device evaluates reference signals using specific criteria and transmits a report to the transmitting radio device, enabling adaptive performance improvement and fault handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fault handling mechanisms are used in AAS with large antenna arrays, then the system can operate with fewer robustness requirements, but the ability to detect and handle faulty antenna branches becomes insufficient
Solution Approach 1:
The patent segments the fault detection process by introducing dedicated reference signals for each antenna port and evaluating them independently. This allows the system to detect faults at the antenna port level rather than requiring system-level fault handling, thereby improving reliability without proportionally increasing overall system complexity
Solution Approach 2:
The patent implements feedback mechanisms where the receiving radio device evaluates reference signals from antenna ports and reports faulty ports back to the transmitting radio device. This closed-loop feedback enables automatic fault detection and handling, improving reliability while keeping the fault handling mechanism manageable through standardized reporting procedures
2Ease of manufacture
If AAS components are made less robust to reduce costs, then manufacturing costs decrease, but the system becomes more sensitive to faulty antenna branches
Solution Approach 1:
The patent applies preliminary action by implementing continuous monitoring of antenna port health through reference signal evaluation before faults can significantly impact system performance. The receiving device constantly assesses reference signal quality and identifies deteriorating ports early, allowing the system to compensate for or replace faulty components before they cause failures, thus enabling the use of less robust but cheaper components
3Productivity
If the number of antenna ports is increased to improve network capacity, then spatial processing capability improves, but the difficulty of detecting and handling faults increases
Solution Approach 1:
The patent segments the large antenna array into individually monitorable ports, each with its own reference signal. This segmentation allows the receiving radio device to evaluate each port's health independently through dedicated reference signal measurements, making fault detection in large-scale systems as manageable as in smaller systems by treating each port as an independent evaluation unit
Solution Approach 2:
The patent introduces reference signals as intermediaries between the antenna ports and the fault detection mechanism. These reference signals serve as measurable proxies that carry information about antenna port health to the receiving radio device, which then evaluates them to detect faults. This intermediary approach simplifies fault detection in large-scale systems by providing standardized, easily measurable indicators for each antenna port
Data Source
AI summary
There is provided mechanisms for reporting a faulty antenna port at a transmitting radio device. A method is performed by a receiving radio device. The method comprises receiving at least one reference signal transmitted at an antenna port of the transmitting radio device. The method comprises determining whether the antenna port is deemed faulty or not by subjecting the at least one reference signal to an evaluation criterion. The method comprises transmitting, when the antenna port is deemed faulty, a report to the transmitting radio device. The report indicates that the antenna port is deemed faulty.