Multi-Link Device Partial Information Request
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Solution Overview
Problem
In multi-link communication systems, devices face challenges in efficiently managing information exchange across multiple links, leading to increased overhead and power consumption due to the need to receive information from other links while maintaining communication on a primary link.
Innovation Solution
A multi-link device transmits a request frame to an access point through a first station, requesting information related to another link, and receives a response frame, allowing for the delivery of information across links and reducing overhead and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a multi-link device receives information from all links to maintain communication on a primary link, then link reliability is improved, but power consumption and overhead increase
Solution Approach 1:
The patent extracts only the necessary information elements from other links that are relevant to maintaining communication on the primary link, rather than receiving all information from all links. This selective extraction reduces power consumption while maintaining link reliability.
Solution Approach 2:
The patent implements partial information reception by requesting and receiving only specific elements (such as BSS load information, channel utilization information) from other links, rather than complete information. This partial action approach reduces overhead and power consumption while sufficient for maintaining primary link communication.
2Productivity
If a multi-link device requests and processes information from multiple links, then link usage efficiency is improved, but frame exchange overhead increases
Solution Approach 1:
The patent extracts only specific required elements (BSS load information, channel utilization information, etc.) from other links through targeted request frames, avoiding transmission of unnecessary information. This reduces the quantity of data exchanged in frames while maintaining link usage efficiency.
Solution Approach 2:
The patent requests and receives only partial information (specific elements) from other links rather than complete link information. This partial information exchange reduces frame overhead while providing sufficient data for efficient link management and communication optimization.
Data Source
AI summary
According to various embodiments, a multi-link device (MLD) operating in multiple links including a first link may transmit, through a first station (STA) and to a first AP of an AP multi-link device, a request frame including an information field for requesting at least one element related to a second link. The multi-link device may receive at least one element related to the second link on the basis of the request frame.