WLAN Multi-Link Availability Signaling for Throughput-Power Balance

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Solution Overview

Problem

Existing wireless communication systems face challenges in coordinating multiple wireless links to achieve increased throughput and latency reduction while minimizing power consumption, particularly in multi-link wireless local area networks (WLANs).

Innovation Solution

Wireless devices are configured to determine and transmit link availability and status information across multiple wireless links, using management frames and A-Control subfields to dynamically manage link activation and deactivation, optimizing power consumption and throughput.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple wireless links are established to increase throughput and reduce latency, then network performance is improved, but power consumption increases

Engineering Contradiction:

ImprovethroughputVSAvoidpower consumption

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic link availability indication where wireless devices continuously update their operational status across multiple links. The system dynamically activates or deactivates specific links based on real-time network conditions, device power state, and traffic requirements, allowing the network to adaptively balance throughput and power consumption without fixed link configurations

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent employs feedback mechanisms through management frames that carry link availability information. Devices receive feedback about link status from multiple sources including themselves, neighboring devices, and the network, then adjust their link activation decisions accordingly. This multi-source feedback loop enables intelligent power-performance tradeoff optimization

Inventive Principle:

Principle #23Feedback

2Reliability

If link availability information is transmitted on every link, then network awareness is improved, but overhead increases

Engineering Contradiction:

Improvenetwork awarenessVSAvoidoverhead

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the link availability information transmission by distinguishing between different types of links (e.g., primary vs. secondary, operational vs. standby). Instead of uniformly transmitting full availability information on all links, the system selectively transmits information based on link importance and current operational status, reducing unnecessary overhead on less critical links while maintaining comprehensive network awareness where needed

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250374359A1Link Availability and Status Indication for Multi-Link Operation in WLAN

Publication Date: 2025.12.04 APPLE INC

AI summary

This disclosure relates to methods for conducting multilink communications between wireless devices over a wireless local area network (WLAN). A wireless device determines link availability for multiple wireless links of the wireless device. The wireless device transmits link availability information for the multiple wireless links of the wireless device using a first wireless link of the wireless device.