Wireless Backhaul Link Selection Using Uptime Metrics
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Solution Overview
Problem
Wireless backhaul links in wireless communication networks experience frequent downtimes due to transmission issues, necessitating a reliable method for selecting and switching between backup links based on signal strength and uptime.
Innovation Solution
A wireless access node selects a primary backhaul link based on signal strength and a secondary backup link based on both signal strength and uptime information, ensuring continuous communication by periodically monitoring and switching between these links when performance criteria are met or exceeded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless backhaul links are used to provide connectivity, then network coverage and flexibility are improved, but frequent downtimes occur due to transmission issues
Solution Approach 1:
The system proactively selects and configures backup wireless backhaul links before primary link failures occur. The network node maintains multiple pre-established wireless links with different access nodes, and backup links are pre-configured based on signal strength measurements and uptime history, enabling immediate failover without service interruption
Solution Approach 2:
The system dynamically changes operational parameters by selecting different wireless backhaul links based on varying conditions. It monitors signal strength, uptime percentages, and transmission quality of multiple available links, then switches between links based on current performance parameters to maintain optimal connectivity and reliability
2Reliability
If backup wireless backhaul links are maintained, then network reliability is improved, but system complexity increases
Solution Approach 1:
The network node automatically performs link selection, monitoring, and switching operations without manual intervention. The system self-manages the complexity by autonomously evaluating multiple wireless links based on signal strength and uptime metrics, automatically selecting primary and backup links, and executing failover when needed, thereby reducing operational complexity despite maintaining multiple links
3Loss of time
If multiple wireless backhaul links are monitored and switched between, then downtime is reduced, but processing overhead increases
Solution Approach 1:
The system continuously monitors performance parameters including signal strength, uptime percentages, and transmission quality of multiple wireless backhaul links. This feedback mechanism enables the network node to dynamically adjust link selection based on real-time conditions, switching to backup links when primary links degrade, thereby minimizing downtime through data-driven decision making
Data Source
AI summary
Systems, methods, and software for providing a wireless local area network to user devices using a wireless access node are provided herein. In one example, a method of operating a wireless access node is provided. The method includes providing a wireless local area network for user devices, selecting a first wireless backhaul link for communications of the wireless local area network from among a plurality of wireless links provided by a plurality of wireless access nodes based on at least signal strengths of the wireless links, and selecting a second wireless backhaul link as a backup for the first wireless backhaul link from among the plurality of wireless links based on at least the signal strengths and uptime information of the wireless links.