Multi-Link Wi-Fi BSS Change Signaling to Reduce Power Consumption
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Solution Overview
Problem
Existing Wi-Fi technologies face challenges in managing and updating Basic Service Set (BSS) parameters in multi-link communication scenarios, particularly in scenarios involving multiple frequency bands, which can lead to inefficiencies and increased power consumption.
Innovation Solution
A communication method and device that utilize radio frames to carry BSS change indication information, including a Change Sequence element and/or Change Count, to efficiently update BSS parameters across multiple links, reducing signaling overhead and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If BSS parameters are updated in multi-link communication scenarios, then communication efficiency is improved, but signaling overhead and power consumption increase
Solution Approach 1:
The patent extracts the essential change notification function from full BSS parameter retransmission. By using a dedicated Change Sequence element and Change Count field in the radio frame, only the fact of change is signaled, not the complete parameter set. This extraction of the notification function reduces signaling overhead and power consumption while maintaining communication efficiency.
Solution Approach 2:
The patent implements a feedback mechanism where the Change Count and Change Sequence element provide feedback about parameter changes to station devices. This allows stations to detect changes and update their local parameters without receiving complete BSS parameter sets, reducing the signaling burden and energy consumption associated with full parameter retransmission.
2Productivity
If BSS parameters are updated in multi-link communication scenarios, then communication efficiency is improved, but signaling overhead increases
Solution Approach 1:
The patent extracts the change notification function from complete parameter retransmission. The Change Sequence element and Change Count field isolate the essential change information, allowing stations to understand parameter changes without processing full BSS parameter sets. This reduces signaling overhead while maintaining efficient communication.
Solution Approach 2:
The patent segments the BSS parameter update mechanism into two parts: the change notification (carried by Change Sequence and Change Count) and the actual parameter values (maintained locally by stations). This segmentation allows efficient communication by transmitting only the change notification rather than complete parameters.
3Stability of the object's composition
If BSS parameters are updated in multi-link communication scenarios, then system synchronization is improved, but power consumption increases
Solution Approach 1:
The patent uses Change Count and Change Sequence element as feedback signals that inform stations of parameter changes without requiring full retransmission. This feedback mechanism maintains system synchronization across multiple links while consuming less power than complete parameter retransmission would require.
Solution Approach 2:
The patent extracts only the essential synchronization information (change notifications via Change Sequence and Change Count) from full parameter sets. This allows stations to stay synchronized with BSS parameter changes without the power consumption associated with receiving and processing complete parameter retransmissions.
Data Source
AI summary
A communication method is applied to a multi-link-supporting station device, and includes: sending a first radio frame, wherein Basic Service Set (BSS) change indication information is carried in the first radio frame, the BSS change indication information includes a BSS change parameter with an access point device, and the BSS change parameter includes at least one of a Change Sequence element or a Change Count.