Multi-Link Wi‑Fi Roaming Using Neighbor Reports After Link Loss
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Solution Overview
Problem
In multi-link communication systems conforming to IEEE 802.11be standard, the efficiency of roaming is compromised due to decreased throughput and increased calculation requirements for link comparisons.
Innovation Solution
A communication apparatus is designed to establish multiple links, acquire information about peripheral communication devices upon link disconnection, and control roaming to another device based on this information, adhering to IEEE 802.11 standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If roaming is performed according to the standard in the related art in multi-link communication, then the roaming function is achieved, but the throughput decreases and the calculation amount for determining the roaming standard increases
Solution Approach 1:
The patent applies preliminary action by having the station acquire neighbor report information in advance before roaming is needed. The acquired information includes BSSID, RSSI, and link ID of peripheral access points, which are stored for future roaming decisions. This pre-acquisition eliminates the need for real-time scanning during roaming, thus maintaining throughput while enabling seamless roaming transitions.
Solution Approach 2:
The patent segments the roaming determination process by using link IDs to identify specific links associated with each access point. Instead of evaluating all links simultaneously, the system divides the multi-link configuration into individual link components, allowing independent evaluation and faster decision-making. This segmentation reduces the calculation amount by focusing only on relevant link information.
2Adaptability or versatility
If roaming is performed according to the standard in the related art in multi-link communication, then the roaming function is achieved, but the calculation amount for determining the roaming standard increases
Solution Approach 1:
The patent applies preliminary action by having the station acquire neighbor report information in advance before roaming is needed. The acquired information includes BSSID, RSSI, and link ID of peripheral access points, which are stored for future roaming decisions. This pre-acquisition eliminates the need for real-time scanning during roaming, thus maintaining throughput while enabling seamless roaming transitions.
Solution Approach 2:
The patent segments the roaming determination process by using link IDs to identify specific links associated with each access point. Instead of evaluating all links simultaneously, the system divides the multi-link configuration into individual link components, allowing independent evaluation and faster decision-making. This segmentation reduces the calculation amount by focusing only on relevant link information.
Data Source
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AI summary
A communication apparatus (AP 101, AP 105, STA 102) conforming to Institute of Electrical and Electronics Engineers (IEEE) 802.11 series standards establishes multiple links at least including a first link and a second link with a first other communication apparatus, performs a process to acquire information about other peripheral communication apparatuses based on disconnection of any one link, among the multiple links established with the first other communication apparatus, and performs control so as to perform roaming to a second other communication apparatus based on the acquired information.