Prioritizing RF Signal Leak Repair in HFC Networks
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Solution Overview
Problem
Cable network operators face challenges in detecting and prioritizing signal leaks at LTE frequencies, as existing technologies lack visibility into higher frequency leaks, leading to numerous undetected leaks that can affect LTE base transceiver station performance and QAM channel quality.
Innovation Solution
A system and method that detect RF signal leaks in HFC networks by measuring amplitude levels, determining the location of leaks, associating leak levels with nearby BTS signal levels, and assigning repair priorities based on these factors to focus on leaks most likely to impact network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all signal leaks are repaired, then network performance is optimized, but repair resources and time are insufficient due to the large number of leaks
Solution Approach 1:
The patent segments the large set of detected leaks into priority groups based on their potential impact on network performance. By analyzing leak characteristics such as signal strength, frequency, and proximity to sensitive equipment, the system divides leaks into high-priority and low-priority categories, enabling targeted repair efforts that address the most critical issues first while managing limited repair resources effectively.
Solution Approach 2:
The patent applies local quality by evaluating and treating different leaks differently based on their specific characteristics and location. Rather than uniform treatment, the system assesses each leak's individual impact potential and assigns appropriate priority levels, allowing repair resources to be allocated where they will have the greatest effect on network reliability.
2Ease of operation
If repair priority is based solely on leak amplitude, then detection simplicity is maintained, but network-impacting leaks are not accurately identified
Solution Approach 1:
The patent merges multiple detection parameters including leak amplitude, signal frequency, leak location, and proximity to BTS stations or sensitive network equipment into a comprehensive priority assessment. By combining these factors, the system achieves more accurate identification of network-impacting leaks while maintaining operational simplicity through automated multi-parameter analysis.
Solution Approach 2:
The patent creates a multi-functional leak assessment system that simultaneously evaluates multiple characteristics (amplitude, frequency, location, proximity) and serves multiple purposes: identifying high-priority leaks, optimizing repair resource allocation, and predicting potential network impact. This universal approach enhances measurement precision without significantly complicating the detection process.
Data Source
AI summary
A method or apparatus of identifying for repair a signal leak in an HFC network, wherein a base transceiver station in the vicinity of the HFC network transmits a BTS signal over-the-air. The method comprises or apparatus performs the steps of: (a) identifying a location of the signal leak; (b) in the vicinity of the signal leak, detecting the BTS signal; (c) determining a level of the BTS signal; (d) defining a threshold level; (e) with the use of a processor, determining whether the level of the BTS signal meets or exceeds the threshold level; and (f) indicating for repair the signal leak if the level of the BTS signal meets or exceeds the threshold level.