Wi-Fi Uplink Coordination Using Segmented Station Identifiers
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Solution Overview
Problem
In an uplink coordination scenario involving multiple access points, existing communication solutions fail to ensure unique association identifiers for stations across different basic service sets, leading to reduced capacity and inefficient coordinated communication due to complex transmission procedures.
Innovation Solution
A communication apparatus and method that includes a trigger frame with identification information for multiple basic service sets and stations, allowing independent configuration of identifiers without ensuring uniqueness, facilitating communication between access points and stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If association identifiers are made unique across all coordinated basic service sets, then identifier conflict is 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. Each basic service set within a coordination set can use association identifiers independently within its own segment, rather than requiring global uniqueness across all basic service sets. This segmentation allows each BSS to maintain its own identifier space, increasing the quantity of available identifiers per BSS while avoiding conflicts through the coordinated management structure.
2Reliability
If association identifiers are made unique across all coordinated basic service sets, then identifier conflict is avoided, but the complexity of coordinated transmission procedure increases
Solution Approach 1:
By segmenting the identifier management into coordination set level and basic service set level, the patent reduces the complexity of coordinated transmission. The segmentation allows local identifier management within each BSS rather than requiring global coordination for every identifier assignment, simplifying the transmission procedure while maintaining reliability through the coordination set framework.
3Adaptability or versatility
If access points negotiate for common association identifier space, then coordinated communication is enabled, but communication efficiency decreases
Solution Approach 1:
The patent enables coordinated communication by segmenting the management into two levels: coordination set level for establishing coordinated relationships, and basic service set level for actual identifier assignment and communication. This segmentation allows access points to negotiate coordination relationships without requiring continuous negotiation for every identifier, thereby maintaining communication efficiency while enabling coordinated communication capability.
Solution Approach 2:
The patent performs the coordination negotiation in advance to establish the coordination set relationship and identifier space segmentation. Once the preliminary coordination is established, subsequent communications can proceed efficiently using the pre-arranged identifier spaces without requiring repeated negotiations, thus improving communication efficiency while maintaining adaptability.
Data Source
AI summary
Embodiments of this application disclose an uplink coordinated communication method and apparatus, which are applicable to an uplink coordination scenario in a plurality of Wi-Fi standards. In the method provided in embodiments of this application, a trigger frame generated by a first access point may include identification information of a plurality of basic service sets and identification information of a station. The trigger frame may trigger the plurality of BSSs to perform uplink coordination. The trigger frame generated by the first access point may carry an identifier of a triggered station in one BSS. Therefore, the first access point may independently configure identification information of a station associated with the first access point, without ensuring uniqueness of identifiers of the stations in the plurality of BSSs.