Wireless Terminal Network Access via Location History
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Solution Overview
Problem
Existing wireless terminals face challenges in quickly searching for and accessing less expensive networks due to spatial limitations and high costs, necessitating a method for rapid network discovery based on location information and access history.
Innovation Solution
A wireless terminal apparatus and method that utilizes pre-registered access history information and current location data to quickly identify and access nearby networks, reducing the need for extensive channel scanning by prioritizing previously accessible points with favorable communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal performs exhaustive channel scanning to search for accessible APs, then the terminal can find all available networks, but the time required to find an accessible network increases significantly
Solution Approach 1:
The terminal performs preliminary actions by maintaining an access history table that records previously accessed AP information, location information, and communication quality metrics before actual network searching is needed. This pre-computed data enables rapid network selection without exhaustive scanning
Solution Approach 2:
The terminal creates a simplified copy of the network environment by storing essential AP information (BSSID, channel, location, communication quality) in an access history table. This copy allows the terminal to make informed network selection decisions without physically scanning all channels
2Adaptability or versatility
If the terminal searches for less expensive networks by scanning all available networks, then the terminal can find cost-effective options, but the complexity of the network selection process increases
Solution Approach 1:
The terminal applies local quality by associating specific attributes (communication quality, cost preference, location) with each AP in the access history table. This allows the terminal to evaluate networks based on localized characteristics rather than uniform scanning criteria
Solution Approach 2:
The system uses feedback mechanisms by storing communication quality metrics from previous network connections in the access history table. This feedback enables the terminal to preferentially select networks with historically good performance, simplifying the selection process while optimizing for cost and quality
3Measurement precision
If the terminal stores detailed access history information for all previously accessed networks, then the terminal can make informed network selection decisions, but the memory requirements and data management complexity increase
Solution Approach 1:
The terminal extracts only the essential elements needed for network selection (BSSID, location information, communication quality metrics, channel) from complete network data. This selective extraction maintains measurement precision while minimizing stored data volume
Solution Approach 2:
The terminal applies partial action by storing only the most relevant access history information necessary for making network selection decisions, rather than storing complete network configurations and all possible attributes. This provides sufficient accuracy for network evaluation without excessive data storage
Data Source
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Figure 3
AI summary
An apparatus and method for quickly searching for an accessible network in a wireless terminal. A wireless terminal registers information about a current location and information used to access a network in an access history table, when it succeeds in accessing the network. Thereafter, when accessing a network, the wireless terminal attempts to access a network that it previously accessed, using information about a current location and the access history table.