Multi-Link Device Management Frame Structure for Wireless Information Duplication

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Solution Overview

Problem

In wireless communication systems based on IEEE 802.11 standards, there is a duplication of multi-link operation (MLO) and basic service set (BSS) information in management frames, which leads to inefficiencies in data transmission and resource utilization.

Innovation Solution

The implementation of a multi-link device (MLD) that uses reduced neighbor report (RNR), multi-link (ML), and multi-basic service set identifier (MBSSID) elements to transmit MLO and BSS information without duplication, ensuring each piece of information is included only once in the frame, thereby optimizing data transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If MLO and BSS information is transmitted in management frames for each wireless device, then complete information is provided to all devices, but information duplication occurs reducing transmission efficiency

Engineering Contradiction:
Improveinformation completenessVSAvoiddata transmission efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent merges MLO information and BSS information into a single unified management frame structure. Instead of transmitting separate frames for each type of information to each wireless device, the system combines these information types into one consolidated frame that is transmitted once to all devices in the BSS, thereby eliminating duplication while maintaining information completeness.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The management frame is designed with universal applicability to carry both MLO and BSS information simultaneously. This multi-functional frame structure can serve multiple purposes: providing MLO capabilities information, BSS configuration details, and neighbor device information all in one transmission, making the system more efficient without sacrificing reliability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Loss of information

If MLO information is included in each wireless device's management frame, then each device receives its specific MLO information, but the frame size increases and resource utilization decreases

Engineering Contradiction:
Improveinformation delivery accuracyVSAvoiddata transmission volume
Core Design Contradiction:
Loss of informationVSQuantity of substance

Solution Approach 1:

The patent segments the management frame into distinct information fields: MLO information elements, BSS information elements, and device-specific information. This segmentation allows the system to organize information efficiently, include only necessary data for each device, and avoid transmitting redundant information that would increase frame size without adding value.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extracts only the essential MLO and BSS information needed for each wireless device from the complete set of possible information. By taking out only the relevant portions required for each device's operation rather than including all possible information, the frame size is optimized while ensuring each device receives the information it needs.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS11805470B2Wireless device in a multi-link device (MLD) arranged to reduce duplication of multi-link operation (MLO) information and basic service set (BSS) information and methods
Publication Date: 2023.10.31 NXP USA INC
  • US11805470B2 patent drawing
  • US11805470B2 patent drawing
  • US11805470B2 patent drawing

AI summary

A reduced neighbor report (RNR) element is generated. The generated RNR element includes multi-link device operation (MLO) information of least one neighboring wireless device to a reporting wireless device. In examples, the MLO information defines information of a respective multi-link device (MLD) which each at least one neighboring wireless device to the reporting wireless device is affiliated. A multilink (ML) element is also generated. The generated ML element includes basic service set (BSS) information of each of at least one wireless device affiliated to an MLD where the reporting wireless device is affiliated to the same MLD. The reporting wireless device transmits a frame which comprises the generated RNR element and the generated ML element, where the generated ML element does not include any other RNR element.