Wireless Node Neighbor Reports for Faster AP Roaming
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Solution Overview
Problem
Existing wireless communication systems lack efficient methods for maintaining and updating appropriate neighboring connection information in wireless nodes, leading to potential roaming failures and increased network load due to unnecessary channel scanning.
Innovation Solution
Wireless nodes transmit and update neighboring connection information based on signal reception and setting change information from neighboring nodes, using a control unit to manage and adjust this information autonomously, reducing the need for frequent channel scanning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a terminal performs channel scanning to find roaming target APs, then the terminal can discover available APs, but the network load increases and roaming efficiency decreases due to unnecessary full-channel scanning
Solution Approach 1:
The serving AP proactively collects and maintains neighboring connection information (BSS information) from surrounding APs before the terminal needs to roam. This preliminary action allows the AP to provide pre-filtered, relevant channel information to the terminal, eliminating the need for the terminal to perform exhaustive channel scanning and reducing network load while ensuring reliable roaming.
2Productivity
If the serving AP maintains neighboring connection information, then the terminal can roam efficiently with accurate information, but the AP requires continuous updates and maintenance of this information
Solution Approach 1:
The system implements a feedback mechanism where the serving AP periodically requests updated BSS information from neighboring APs using Neighbor Reports. This feedback loop ensures that the neighboring connection information is continuously refreshed without requiring complex manual maintenance, allowing the AP to maintain accurate roaming information automatically while improving roaming efficiency.
3Reliability
If the terminal scans all channels to find neighboring APs, then the terminal can find all available APs, but the time required for roaming increases significantly
Solution Approach 1:
The serving AP extracts and provides only the relevant neighboring connection information that the terminal needs for roaming, rather than requiring the terminal to search through all possible channels. This extraction of essential information from the complete channel space allows the terminal to quickly identify suitable roaming targets without wasting time scanning irrelevant channels, thus reducing roaming time while maintaining reliable AP discovery.
Data Source
AI summary
A wireless node that transmits, to a terminal, neighboring connection information for the terminal to wirelessly connect to a neighboring wireless node comprises: a reception unit that receives signals from the neighboring wireless node; and a control unit that generates neighboring connection information relevant to the basis of the signals. The reception unit receives settings change information pertaining to changes in wireless communication settings performed in the neighboring wireless node, from the neighboring wireless node. The control unit converts neighboring connection information relevant to the basis of the settings change information.