Multi-Link Wi-Fi Link Recommendation for Balanced Band Utilization
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Solution Overview
Problem
The underutilization of Multi-Link Operation (MLO) functionality in Wi-Fi networks leads to an imbalance in link utilization, where wider frequency bands are overutilized while narrower bands remain underutilized, resulting in connection failures, increased latency, and degraded network performance.
Innovation Solution
A network device with MLO management logic that recommends a set of available links to a station (STA) MLD, managing link availability and utilization by transmitting connection management responses that indicate available second links, remove traffic identifiers, and suggest alternative AP MLDs or affiliated APs to balance link usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If stations prioritize links on wider frequency bands (e.g., 6 GHz) over links on narrower frequency bands, then throughput and latency are improved, but link utilization balance deteriorates causing overutilization of wider bands and underutilization of narrower bands
Solution Approach 1:
The network device monitors link utilization status and provides feedback to the station by including indication information in connection management responses. This feedback mechanism enables the station to adjust its link selection behavior based on real-time network conditions, preventing overutilization of wider bands while maintaining optimal throughput.
Solution Approach 2:
The system dynamically changes link selection parameters by adjusting the set of recommended links based on utilization status. When a link's utilization exceeds a threshold, the system modifies the recommendation parameters to steer traffic to less utilized links, achieving load balancing while maintaining performance.
2Speed
If links on wider frequency bands are overutilized to achieve higher throughput, then data transmission speed is improved, but connection reliability deteriorates due to connection failures when maximum capacity is reached
Solution Approach 1:
The network device performs preliminary actions by proactively identifying and recommending alternative links before the primary link reaches capacity. By including indication information about available links in advance, the system prevents connection failures before they occur, maintaining reliability while supporting high throughput.
Solution Approach 2:
The connection management response acts as an intermediary mechanism between the station's throughput optimization needs and the network's capacity constraints. It mediates by providing guided link selection recommendations that balance performance demands with capacity limitations.
3Ease of operation
If the network allows stations to connect to any available link, then ease of connection is improved, but network performance deteriorates due to unbalanced link utilization and connection failures
Solution Approach 1:
The system maintains ease of connection by automatically providing link recommendations through connection management responses. This feedback mechanism guides stations to optimal links without requiring manual intervention, preserving connection ease while significantly improving network efficiency through balanced utilization.
Solution Approach 2:
The station performs self-service by autonomously selecting recommended links based on the indication information provided by the network device. This autonomous operation maintains connection simplicity while achieving optimized network performance without requiring complex manual configuration.
Data Source
AI summary
Devices, networks, systems, methods, and processes for recommending one or more links to a station (STA) multi-link device (MLD) are provided herein. The STA MLD may be a part of a wireless network that includes a set of Access Points (AP) MLDs. An AP MLD of the set of AP MLDs may receive a connection management request of the STA MLD for one or more first links. Further, the AP MLD may determine that the first links are unavailable or partially available. Upon determining that the first links are unavailable or partially available, the AP MLD may transmit a connection management response including an indication that recommends a set of second links of the set of AP MLDs to the STA MLD. The transmission of the indication recommending the set of second links may enable the AP MLD to suppress connection failure(s) for the STA MLD.