Priority-Based Access Device Adoption in Wireless Switches
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Solution Overview
Problem
Wireless switches in large networks often become oversubscribed, leading to unpredictable adoption of access devices after a disconnect event, resulting in temporary data transfer interruptions as active devices may be denied re-adoption in favor of inactive ones due to hardware or software limitations.
Innovation Solution
Implementing a priority-based adoption process where access devices are dynamically assigned adoption priorities based on traffic generation or data types, ensuring that high-traffic or critical devices are preferentially adopted when the wireless switch resumes operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wireless switch adopts all connected access devices, then the network coverage and redundancy are improved, but the wireless switch becomes oversubscribed and cannot support all devices simultaneously
Solution Approach 1:
The patent assigns different adoption priorities to different access devices based on their characteristics and network roles. High-priority devices (such as those providing critical coverage or serving premium users) are ensured adoption slots, while low-priority devices are adopted only when capacity permits. This local differentiation resolves the contradiction by ensuring critical devices are supported while managing overall device quantity within switch capacity limits.
2Device complexity
If the wireless switch adopts access devices in ad-hoc basis, then the system complexity is reduced, but the data transfer continuity is worsened when the switch resets
Solution Approach 1:
The patent implements preliminary action by having access devices register their adoption requests and priorities with the wireless switch before a reset event occurs. The switch maintains this priority information in memory, so when a reset occurs and devices reconnect, the switch can immediately resume adoption of high-priority devices without requiring complex real-time negotiation. This preliminary registration system maintains data transfer continuity while keeping the adoption control mechanism relatively simple.
Data Source
AI summary
Apparatus and methods are provided for priority-based adoption of access devices coupled to a wireless switch. A method comprises maintaining a respective adoption priority for each of a plurality of access devices adopted by the wireless switch. The method further comprises receiving, in response to a disconnection event, an adoption request from a first access device coupled to the wireless switch, wherein the first access device has an adoption priority. The method further comprises analyzing the adoption priority for the first access device, and responding to the adoption request in a manner that is influenced by the analysis.