MLD Capability Signaling in Link Reconfiguration Frames
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Solution Overview
Problem
The IEEE 802.11be standard does not allow for the updating of Extended MLD Capabilities and Operations subfields during Multi-Link Device (MLD) link reconfiguration, necessitating reassociation to update MLD capabilities, which is inefficient and increases signaling overhead.
Innovation Solution
Modifying the Presence Bitmap and Common Info field of the Reconfiguration Multi-Link element to enable inclusion of the Extended MLD Capabilities and Operations subfield, allowing dynamic updates without reassociation, and optimizing signaling by including only updated subfields during link addition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If reassociation is performed to update MLD capabilities, then MLD capabilities can be updated, but signaling overhead increases and efficiency decreases
Solution Approach 1:
The patent extracts the capability update function from the reassociation procedure and implements it within the link reconfiguration procedure. By allowing Extended MLD Capabilities and Operations subfields to be updated during link reconfiguration rather than requiring full reassociation, the patent separates the capability update need from the connection establishment process, thereby reducing unnecessary signaling overhead while maintaining capability adaptability
Solution Approach 2:
The patent segments the MLD capability information into specific subfields (Extended MLD Capabilities and Operations subfields) that can be independently updated. This segmentation allows only the necessary capability information to be transmitted during link reconfiguration, rather than requiring complete capability exchange through reassociation, thus reducing signaling overhead while maintaining full adaptability
2Adaptability or versatility
If reassociation is performed to update MLD capabilities, then MLD capabilities can be updated, but time consumption increases
Solution Approach 1:
The patent enables capability updates to be performed as a preliminary action within the link reconfiguration procedure rather than requiring a separate reassociation process. By incorporating Extended MLD Capabilities and Operations subfield updates into the ongoing link reconfiguration exchange, the patent eliminates the need for time-consuming reassociation while maintaining full capability adaptability
Solution Approach 2:
The patent merges the capability update function with the link reconfiguration procedure. By combining these two functions into a single protocol exchange, the patent eliminates the sequential execution of separate reassociation and capability update processes, thereby reducing time consumption while maintaining the ability to update MLD capabilities
Data Source
AI summary
Signaling Multi-Link Device (MLD) capabilities is provided. Signaling MLD capabilities can comprise maintaining, by a non-Access Point (AP) Multi-Link Device (MLD), an association with an AP MLD, the association comprising one or more setup links between the non-AP MLD and the AP MLD, each setup link established between an affiliated non-AP station (STA) of the non-AP MLD and an affiliated AP of the AP MLD. To add a link, the non-AP MLD generates and transmits to the AP MLD a Link Reconfiguration Request frame comprising a Reconfiguration Multi-Link element with one or more subfields, including an Extended MLD Capabilities and Operations subfield, comprising data indicating MLD capabilities of the non-AP MLD. Responsive to receiving a Link Reconfiguration Response frame indicating a success from the AP MLD, the non-AP MLD adds the link to the one or more setup links of the association between the AP MLD and the non-AP MLD.