Distributed Client Information Database Wireless Network Redundancy
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Solution Overview
Problem
Centralized client information storage in wireless networks is a single point of failure and can burden communication links, especially when client information needs to be updated across multiple access points during roaming, potentially affecting network throughput.
Innovation Solution
Selecting a subset of access points or gateways as redundant aggregation devices to maintain client information, where these devices monitor and synchronize parameters to ensure redundancy without overloading the network, allowing seamless roaming and reducing data traffic by distributing the client information database across fewer nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a centralized controller is used to store client information, then client information can be maintained consistently, but the system becomes vulnerable to single point of failure and increases communication link burden
Solution Approach 1:
The patent divides the centralized client information database into distributed copies stored at multiple access points. Each access point maintains a local copy of the database, segmenting the central storage function across multiple nodes. This eliminates the single point of failure while maintaining consistent client information availability through distributed redundancy.
Solution Approach 2:
The patent implements multiple copies of the client information database at different access points. Instead of having a single centralized copy, the system creates redundant copies at multiple locations. When a client roams, the new access point can access client information from its local copy or request updates from other access points, ensuring continuous availability without centralized dependency.
2Reliability
If all access points maintain client information, then redundancy is maximized, but network communication load increases significantly
Solution Approach 1:
The patent applies local quality by having each access point maintain only the client information relevant to its local clients rather than replicating the entire database. Each access point stores client information locally for its associated clients, reducing the data volume that needs to be synchronized across the network while still providing local redundancy for roaming clients.
Solution Approach 2:
The patent implements partial redundancy by having access points maintain client information databases without requiring every access point to store complete information for all clients. Instead, each access point maintains sufficient information for its local clients and requests additional information only when needed during roaming, reducing overall network communication load while maintaining adequate redundancy.
Data Source
AI summary
A method of selecting access points of a wireless network as redundant aggregation devices is disclosed. The method includes monitoring parameters of the access points. A plurality of the access points are selected as redundant aggregation devices based upon the monitored access point parameters. Each of the redundant aggregation devices maintains client information parameters of clients associated with the wireless network.