MLD Roaming Determination Using Collocated AP Beacon Indicators
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless LAN systems face challenges in seamless roaming between access points due to inefficient determination of collocation, leading to unnecessary roaming to non-adjacent access points, which affects operational efficiency.
Innovation Solution
A method is introduced to determine MLD roaming based on collocation with another access point (AP) by using an indicator bit in the beacon frame, allowing seamless movement between APs without disconnection and preventing unnecessary roaming to non-adjacent APs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a non-AP STA roams between APs based on conventional methods, then mobility and connectivity are maintained, but unnecessary roaming to non-adjacent APs occurs reducing operational efficiency
Solution Approach 1:
The system performs preliminary determination of collocation status between APs before initiating roaming. The indicator bit in beacon frames预先 indicates whether neighboring APs are collocated, allowing the non-AP STA to avoid unnecessary roaming to non-adjacent APs before attempting connection, thus improving operational efficiency while maintaining seamless mobility
2Reliability
If roaming is enabled between all APs to ensure seamless connectivity, then mobility is improved, but network complexity and unnecessary roaming events increase
Solution Approach 1:
The system segments the roaming decision-making process by introducing an indicator bit that divides APs into collocated and non-collocated categories. This segmentation allows the non-AP STA to quickly identify suitable roaming targets without complex evaluations, maintaining seamless connectivity while reducing determination complexity through clear categorical differentiation
Data Source
Figure 1(a)~1(b)
Figure 2
Figure 3
AI summary
Proposed are a method and an apparatus for determining MLD roaming on the basis of collocation with another AP in a wireless LAN system. Specifically, a first non-AP STA receives a beacon frame from a first AP. The first non-AP STA determines roaming from the first AP to a third AP on the basis of the beacon frame. The beacon frame includes a first indicator bit. The first indicator bit includes information about whether the third AP is included in the same collocated AP set as the first AP.