Multi-Link Management Frame Update Event Notification
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Solution Overview
Problem
Multi-link communications experience limited efficiency due to the need for devices to monitor and respond to update events on multiple links, leading to increased network overhead and power consumption.
Innovation Solution
A processor in an access point multi-link device identifies update events on one link and transmits management frames on another link, including a Change Sequence field and ML element to indicate these events, allowing non-AP stations to operate efficiently without constant monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices monitor and respond to update events on multiple links, then communication reliability is improved, but network overhead and power consumption increase
Solution Approach 1:
The patent introduces a management frame as an intermediary carrier that transmits update event information between links. Instead of each device continuously monitoring all links for events, the system uses management frames to deliver event notifications efficiently, reducing the monitoring burden and associated power consumption while maintaining reliable communication.
Solution Approach 2:
The patent implements a feedback mechanism where update events on one link are communicated back to other links through management frames. This allows the system to maintain synchronization across multiple links without requiring continuous active monitoring on all links, thus reducing power consumption while preserving communication reliability.
2Reliability
If devices monitor and respond to update events on multiple links, then communication reliability is improved, but network overhead increases
Solution Approach 1:
The patent merges the update event notification function into existing management frames that are already transmitted on multiple links. By combining event information delivery with routine management frame transmissions, the system avoids creating separate dedicated notification channels, thereby reducing overall network overhead while maintaining reliable event communication.
Solution Approach 2:
The management frame serves multiple functions: it transmits routine management information and simultaneously carries update event notifications. This multi-functionality eliminates the need for separate event notification mechanisms, reducing network overhead while ensuring reliable communication across all links.
3Reliability
If non-AP stations constantly check multiple links for update events, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements preliminary action by having the access point transmit update event information in advance through management frames before the non-AP station needs to respond. This allows the station to receive event notifications proactively rather than having to continuously actively monitor all links, reducing power consumption while maintaining reliability.
Solution Approach 2:
The management frame acts as an intermediary that delivers update event information to non-AP stations without requiring them to continuously monitor multiple links. This intermediary mechanism reduces the energy consumption associated with constant monitoring while ensuring the station receives necessary event information reliably.
Data Source
AI summary
Embodiments of a device and a method for multi-link communications are disclosed. In an embodiment, a device includes a processor configured to identify that an update event has occurred on a first link of an access point (AP) multi-link device (MLD), and transmit a management frame on a second link, where the management frame includes a Change Sequence field and a multi-link (ML) element that indicates the update event.