Wireless LAN Terminal Unique AP Connection via Connection ID
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Solution Overview
Problem
In a wireless communication system using IEEE 802.11 standard, wireless LAN terminals cannot connect uniquely to a specific access point when the same identification code is set for multiple access points, leading to connectivity issues in a roaming environment.
Innovation Solution
Implementing application software in wireless LAN terminals and access points to generate and manage unique connection IDs, allowing terminals to select and connect to a specific access point while maintaining the same Extended Service Set Identification (ESS-ID), and adjusting frequency channels to ensure exclusive connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the same identification code (ESS-ID) is set for multiple access points to enable roaming, then the wireless LAN terminal can connect to different access points seamlessly, but the terminal cannot connect uniquely to a specific access point among multiple APs with the same ESS-ID
Solution Approach 1:
The patent divides the identification system into two levels: ESS-ID for network-level identification (enabling roaming) and connection-ID for access point-level identification (enabling unique connection). This segmentation allows the terminal to distinguish between different APs while maintaining seamless roaming capability across the network.
Solution Approach 2:
The patent introduces connection-ID as an intermediary identification code that mediates between the terminal and specific access points. This intermediary layer resolves the conflict by providing additional discrimination capability without disrupting the existing ESS-ID-based roaming mechanism.
2Reliability
If a connection ID is introduced to uniquely identify a specific access point, then the terminal can connect to a specific AP, but the system complexity increases due to additional identification management
Solution Approach 1:
The access point pre-generates and notifies the terminal of the connection-ID before the terminal attempts to connect. This preliminary action eliminates the need for the terminal to manage or generate connection-IDs, significantly reducing terminal complexity while ensuring unique connection capability.
Solution Approach 2:
The access point autonomously generates its own connection-ID and manages its notification to terminals, without requiring external coordination or complex inter-AP communication infrastructure. This self-service approach minimizes system complexity while achieving the goal of unique identification.
Data Source
AI summary
A wireless communication device can be wirelessly connected uniquely to a specific single wireless communication access point among a plurality of these access points in a roaming environment. Wireless LAN terminals input a connection ID for identifying a specific access point among access points and transmit the entered connection ID to one access point that has been wirelessly connected. If a frequency channel for making a connection to a specific access point corresponding to the connection ID is designated by a notification, from the wirelessly connected one access point, indicating whether the connection ID is appropriate or not, then the wireless LAN terminals set this frequency channel and establish a wireless connection to the specific access point.