Multi-AP Coordination for Latency Consistency in Wi-Fi

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Solution Overview

Problem

Current Wi-Fi technologies face challenges in efficiently managing multi-access point (AP) coordination, which is essential for maintaining consistent latency and improving user experience, especially in real-time services, due to interference and fading issues.

Innovation Solution

An electronic device is equipped with a wireless communication circuit and processor to transmit and receive request frames for multi-AP coordination, allowing it to negotiate and communicate service traffic through multiple APs, minimizing interference and enhancing data transmission efficiency by coordinating multiple APs for simultaneous data transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple APs are used for data transmission, then data transmission efficiency is improved, but interference between APs increases

Engineering Contradiction:

Improvedata transmission efficiencyVSAvoidinterference

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system dynamically adjusts coordination between multiple APs based on real-time service requirements and channel conditions. The coordination mechanism allows APs to adapt their transmission parameters and scheduling to minimize interference while maintaining high data transmission efficiency for latency-sensitive services.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Different APs are assigned different roles and transmission characteristics based on their local conditions and service requirements. The coordination mechanism allows each AP to optimize its local transmission quality while contributing to overall system performance, reducing interference through localized optimization.

Inventive Principle:

Principle #3Local quality

2Stability of the object's composition

If multi-AP coordination is implemented, then latency consistency is improved, but system complexity increases

Engineering Contradiction:

Improvelatency consistencyVSAvoidsystem complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

A coordination mechanism acts as an intermediary between multiple APs, managing the complexity of coordination while ensuring latency consistency. This intermediary layer handles the complex interactions and scheduling, allowing individual APs to maintain simpler operations while achieving coordinated latency performance.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of operation

If multiple APs coordinate simultaneously, then user experience is improved, but coordination overhead increases

Engineering Contradiction:

Improveuser experienceVSAvoidcoordination overhead

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The coordination mechanism uses periodic actions and pre-established protocols to reduce coordination overhead. By implementing structured periodic coordination cycles and pre-negotiated parameters, the system minimizes the time and resources required for AP coordination while maintaining improved user experience.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS20240429968A1Method and electronic device for multi-access point (AP) coordination based on information on service

Publication Date: 2024.12.26 SAMSUNG ELECTRONICS CO LTD

AI summary

In Embodiments incorporating features of the present disclosure, a method of operating an electronic device can include, for example, identifying a service through the electronic device. In some embodiments, the method can further include negotiating multi-access point (AP) coordination for the service. In some embodiments, the method can further include receiving traffic of the service through the multi-AP coordination.