Uplink Trigger Frame Structure for Multi-BSS Identifier Coordination
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Solution Overview
Problem
In an uplink coordination scenario involving multiple access points, existing communication solutions fail to efficiently manage association identifiers, leading to conflicts and reduced capacity, and complex coordination procedures, hindering effective communication between access points and stations.
Innovation Solution
A communication apparatus and method that utilizes trigger frames to include identification information of multiple basic service sets and stations, allowing independent configuration of identifiers without ensuring uniqueness across all sets, facilitating flexible and efficient communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If association identifiers are made unique across all coordinated basic service sets, then identifier conflicts are avoided, but the quantity of available association identifiers in each basic service set decreases and the maximum quantity of supported stations is reduced
Solution Approach 1:
The patent segments the association identifier space by introducing a coordination set identifier that is combined with the basic service set identifier. This segmentation allows each basic service set to have its own unique identifier space while maintaining uniqueness across the entire coordination set, thereby increasing the quantity of available identifiers in each set without causing conflicts.
Solution Approach 2:
The patent adds another dimension to the identifier structure by incorporating the coordination set identifier as a separate field. This dimensional change transforms the identifier from a single-space system to a multi-dimensional system, enabling unique identification across coordinated basic service sets while preserving sufficient identifier space within each set.
2Reliability
If access points in all coordinated basic service sets negotiate for common association identifier space, then identifier uniqueness is ensured, but the coordinated transmission procedure becomes complex and communication efficiency decreases
Solution Approach 1:
The patent applies preliminary action by pre-establishing the coordination set identifier through negotiation before actual station scheduling occurs. This preliminary configuration of identifier space allows subsequent trigger frames to use simple, pre-defined identifier structures without requiring complex real-time negotiation, thereby reducing procedural complexity while maintaining uniqueness.
3Adaptability or versatility
If trigger frames include identification information of multiple basic service sets and stations with independent configuration, then communication flexibility is improved, but the trigger frame structure becomes more complex
Solution Approach 1:
The patent applies universality by designing the trigger frame to serve multiple functions simultaneously: it identifies the coordination set, identifies individual basic service sets within the coordination set, and identifies specific stations. This multi-functional design consolidates what would otherwise require multiple separate messages into a single universal trigger frame structure.
Data Source
AI summary
A communication apparatus method includes a non-transitory memory configured to store non-transitory instructions, and one or more processors coupled with the non-transitory memory. The one or more processors are configured to execute the non-transitory instructions to thereby cause the communication apparatus to generate a trigger frame, and send the trigger frame to the stations. The trigger frame is useable to trigger each station of a plurality of stations in a plurality of basic service sets to send a corresponding trigger based physical protocol data unit, and the trigger frame comprises identification information of the plurality of basic service sets and identification information of the plurality of stations.