Point-to-Point Radio Channel Search Coordination
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Solution Overview
Problem
Point-to-point radio systems in mobile backhaul face challenges in efficiently switching operating radio channels due to the need for channel searches, which temporarily disrupt communication paths and limit opportunities for channel selection, especially when failures occur.
Innovation Solution
A point-to-point radio apparatus and mobile backhaul system configuration where downstream systems perform channel searches in response to notifications of unavailable upstream links, allowing simultaneous channel searches to efficiently find and switch to idle channels, thereby minimizing communication disruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a channel search is performed to find an idle channel for switching, then the reliability of the radio link is improved, but the communication path is temporarily disrupted and time is lost
Solution Approach 1:
The system performs channel searches in advance during periods when the radio link is already unavailable or during scheduled maintenance windows. By conducting channel searches before they are critically needed, the system prepares alternative channels so that when a failure occurs, switching can happen immediately without requiring time-consuming searches at that moment.
Solution Approach 2:
The system maintains continuous monitoring of channel conditions and performs channel searches during scheduled downtime or when traffic is low, ensuring that the search process does not interrupt critical communication. This allows the useful action of channel preparation to continue without disrupting essential radio link operations.
2Adaptability or versatility
If a channel search is performed to switch to an idle channel, then the adaptability of the system is improved, but the communication path availability deteriorates
Solution Approach 1:
The system performs channel searches and identifies alternative channels during scheduled maintenance periods or when the current channel is already known to be problematic. By preparing alternative channels in advance, the system maintains adaptability while avoiding disruptions to active communication paths during critical operations.
Solution Approach 2:
The system uses an intermediary control mechanism that coordinates channel searches with traffic patterns and network conditions. This intermediary layer decides when channel searches should be performed by analyzing system state, ensuring that searches occur during appropriate windows without compromising communication path availability.
3Reliability
If channel searches are performed frequently to ensure idle channel availability, then the reliability is improved, but the loss of time and system performance deteriorates
Solution Approach 1:
The system performs channel searches periodically at scheduled intervals rather than continuously or on every potential failure event. This periodic approach ensures that channel availability is maintained through regular updates while minimizing the impact on system performance by avoiding excessive or unnecessary search operations.
Solution Approach 2:
The system dynamically adjusts the frequency and timing of channel searches based on current system conditions, traffic patterns, and channel stability. By changing the operational parameters of when and how often searches occur, the system maintains reliability while optimizing performance by avoiding searches during high-traffic periods or when channel conditions are stable.
Data Source
AI summary
A point-to-point radio apparatus (10A or 10B) is configured to perform a first channel search (S12) to search for an idle channel available to use in a first point-to-point radio link (11A) in response to receiving a first notification (S11) indicating that a second point-to-point radio link (11E) operated by another point-to-point radio system (1E) is unavailable. This contributes to, for example, efficient channel searches in point-to-point radio systems.