Wi-Fi Roaming via Co-Located AP Identification
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Solution Overview
Problem
Existing Wi-Fi communication technologies face inefficiencies in switching networks, leading to unnecessary connection processes and network load when switching to networks with unavailable Internet service, causing service interruptions and packet transmission inefficiencies.
Innovation Solution
An electronic device identifies co-located AP devices through beacon and probe response frames, determining candidate networks and skipping unnecessary ARP queries to connect to physically identical AP devices, optimizing network switching and reducing network load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device performs standard network switching procedures including ARP queries when roaming between networks, then connection reliability is improved through proper network validation, but network load increases and service interruption time extends due to unnecessary packet transmission to AP devices providing unavailable Internet service
Solution Approach 1:
The patent applies preliminary action by checking Internet service availability at the AP device before initiating network switching and ARP queries. The AP device预先 provides capability information indicating whether Internet service is available, allowing the electronic device to avoid unnecessary connection attempts to AP devices with unavailable service, thus reducing service interruption time while maintaining connection reliability through selective connection attempts
Solution Approach 2:
The patent uses the AP device as an intermediary that provides capability information about Internet service availability. This intermediary mechanism allows the electronic device to make informed connection decisions without performing unnecessary ARP queries, reducing both network load and service interruption time while maintaining reliable connections through pre-validation
2Reliability
If the electronic device transmits ARP queries during network switching to validate Internet service availability, then connection reliability is improved through network validation, but network load increases due to unnecessary packet transmission
Solution Approach 1:
The patent applies preliminary action by having the AP device provide capability information about Internet service availability before the electronic device attempts connection. This pre-validation eliminates the need for ARP queries in many cases, reducing network load while maintaining connection reliability through selective packet transmission only when service is available
Solution Approach 2:
The patent extracts the network validation function from the electronic device and relocates it to the AP device, which provides capability information about Internet service availability. This extraction eliminates unnecessary ARP queries from the network, reducing network load while maintaining reliability through the AP device's pre-performed validation
3Adaptability or versatility
If the electronic device attempts connection to all available networks during roaming, then network adaptability is improved through comprehensive network selection, but service availability decreases due to connection attempts to networks with unavailable Internet service
Solution Approach 1:
The patent applies preliminary action by checking Internet service availability through capability information provided by the AP device before the electronic device attempts connection. This pre-validation ensures that the electronic device only connects to networks with available Internet service, maintaining both network adaptability through roaming and service availability by avoiding connections to unavailable networks
Solution Approach 2:
The patent uses feedback in the form of capability information provided by the AP device about Internet service availability. This feedback mechanism allows the electronic device to adapt its connection decisions based on actual service availability, maintaining network adaptability while ensuring service availability by connecting only to networks that can provide Internet access
Data Source
AI summary
A wireless communication method for a wireless fidelity (Wi-Fi) network and an electronic device for performing the same are provided. The electronic device includes a communication module configured to receive a beacon frame and/or a probe response frame from a peripheral access point (AP) device through wireless communication and a processor. The processor is configured to identify one or more network identifiers of a co-located AP device based on information of a reduced neighbor report (RNR) element field included in the beacon frame and/or the probe response frame, determine one or more candidate networks based on the network identifiers of the co-located AP device when access to another network from a network of a currently connected AP device is necessary, determine a target network for an access attempt among the one or more candidate networks, and attempt a connection to the determined target network.