Multi-Link BA Negotiation for QoS Frame Transmission
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Solution Overview
Problem
The existing BA negotiation mechanism in the IEEE802.11be standard is limited to single-link communication and needs enhancement to support multi-link devices (MLDs) effectively.
Innovation Solution
A communication method and apparatus that utilize enhanced ADDBA request and response frames to facilitate multi-link communication by including parameter information such as buffer sizes, link set identifiers, and TIDs, enabling QoS data frames to be transmitted and their receive status signaled across multiple links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the existing BA negotiation mechanism is used, then single-link communication is supported, but multi-link communication capability is insufficient
Solution Approach 1:
The BA negotiation mechanism is enhanced to serve multiple functions: it maintains compatibility with existing single-link communication while adding support for multi-link device (MLD) communication. The enhanced ADDBA request and response frames include additional parameter fields that enable both single-link and multi-link operations, making the mechanism universal across different communication scenarios.
Solution Approach 2:
The communication parameters are segmented into link-specific fields and MLD-level fields. The ADDBA frames include parameters that can be interpreted at different levels: individual link parameters for single-link operation and aggregated MLD parameters for multi-link operation. This segmentation allows the same mechanism to handle both cases effectively.
2Productivity
If multi-link communication is implemented, then network throughput is improved, but message frame complexity increases
Solution Approach 1:
The multi-link communication parameters are nested within the existing ADDBA frame structure. The enhanced frames contain inner parameter structures (link-specific parameters) nested within outer structures (MLD-level parameters). This nesting allows comprehensive multi-link information to be conveyed without creating entirely new complex frame formats, thereby improving throughput while controlling frame complexity.
Solution Approach 2:
The communication framework is extended from a single-dimension (single-link) to multi-dimensional (multi-link) space by adding link identifier fields and arrays of parameters indexed by link ID. This dimensional extension enables parallel communication across multiple links, increasing throughput while organizing complexity in a structured, manageable way through systematic parameter repetition and indexing.
Data Source
AI summary
A method for communication on multiple links, includes: determining a first message frame; and sending the first message frame, wherein the first message frame includes parameter information of the communication on the multiple links.