Portable Terminal Access Point Selection via Link Information
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Solution Overview
Problem
Portable terminals often fail to connect to access points with better communication environments due to pre-designated service provider priorities, limiting users to suboptimal communication resources.
Innovation Solution
A method and apparatus in a portable terminal that identifies and connects to access points with excellent communication environments by receiving and analyzing access point connection-related information, automatic connection support information, and external network link information, allowing selection based on BSS link information, RSSI, and link information to perform local area communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the portable terminal connects to an access point based on pre-designated service provider priority, then the service provider's network management is simplified, but the communication environment quality deteriorates
Solution Approach 1:
The patent applies preliminary action by having the portable terminal pre-acquire link information (such as RSSI, BSS load, channel width) from multiple access points before making a connection decision. This allows the terminal to evaluate communication environment quality in advance and select the optimal access point, rather than relying solely on pre-designated provider priorities.
Solution Approach 2:
The patent implements feedback by continuously monitoring link information from access points and using this information to dynamically adjust access point selection. The terminal receives feedback about communication environment quality (signal strength, network load, channel conditions) and uses this feedback to make informed connection decisions, ensuring optimal communication performance.
2Ease of operation
If the portable terminal selects an access point based on pre-designated priority, then the connection process is simplified, but the communication quality deteriorates
Solution Approach 1:
The patent applies self-service by enabling the portable terminal to autonomously evaluate multiple access points based on link information and automatically select the one with the best communication environment. The terminal independently performs measurements, compares parameters (RSSI, BSS load, channel width), and makes connection decisions without requiring complex user intervention or manual configuration, thus maintaining ease of operation while improving communication quality.
Solution Approach 2:
The patent uses parameter changes by dynamically adjusting access point selection based on varying link information parameters such as RSSI (signal strength), BSS load (network congestion), and channel width (bandwidth). Instead of using fixed priority rules, the terminal changes its selection criteria based on real-time parameter values, allowing it to adapt to changing communication conditions and select the optimal access point.
3Reliability
If the portable terminal evaluates multiple access points based on link information, then the communication environment quality improves, but the selection process complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the access point selection process into distinct evaluation stages: first acquiring link information from multiple access points, then comparing specific parameters (RSSI, BSS load, channel width), and finally selecting the optimal access point based on predefined criteria. This segmented approach breaks down the complex selection process into manageable steps, making it easier to implement and manage while still achieving comprehensive evaluation.
Data Source
AI summary
An apparatus and a method for connecting to a local area communication resource in a portable terminal are provided. The method includes receiving access point connection-related information and automatic connection support-related information from a plurality of access points, identifying at least one access point capable of supporting automatic connection among the plurality of access points based on the automatic connection support-related information, receiving connection information from an information server connected to the at least one access point, selecting one access point from the at least one access points based on basic service set (BSS) link information included in the access point connection-related information with respect to the at least one access point, Received Signal Strength Indication (RSSI) information, and link information of an external network included in the connection information, and performing a local area communication with the selected access point.