Communication Apparatus TID Assignment for Multi-Link IEEE 802.11be
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Solution Overview
Problem
Current protocols for IEEE 802.11be Multi-Link communication lack a mechanism to suitably assign Traffic Identifier (TID) values to links when no TID assignment request is issued, leading to inadequate data priority management.
Innovation Solution
A communication apparatus is designed with a reception unit to handle requests for link establishment and a transmission unit to respond with TID assignment information, enabling default or negotiated TID assignments to ensure proper data priority across multiple links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If no TID assignment request is issued from the Non-AP MLD, then the protocol implementation is simpler, but TID values cannot be suitably assigned to links
Solution Approach 1:
The patent inverts the traditional TID assignment approach by having the AP MLD (receiver) proactively provide TID assignment information in the association response, rather than requiring the Non-AP MLD (initiator) to request it. This inversion ensures TID values are suitably assigned while maintaining protocol simplicity, as the TID assignment is provided passively during the association process.
2Manufacturing precision
If TID assignment information is always provided in the association response, then TID values are always suitably assigned, but the response message size increases
Solution Approach 1:
The patent applies local quality by conditionally including TID assignment information only when needed. The AP MLD includes TID assignment information in the association response based on local determination of whether TID assignment is required, rather than universally including it in all responses. This reduces unnecessary message size while ensuring TID values are suitably assigned when needed.
Data Source
AI summary
A communication apparatus capable of establishing a plurality of links with another communication apparatus in parallel receives a request including information about a link establishment and transmits, in a case where the received request does not include information about an assignment of a Traffic Identifier (TID) indicating data priority, a response including the information about the TID assignment.