Multi-radio WLAN Device Concurrent Data Transmission

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Solution Overview

Problem

Current wireless local area networks (WLANs) face limitations in maximizing single-user throughput due to the inability to effectively utilize multiple radio pathways for concurrent data transmission, leading to suboptimal bandwidth utilization and interference management.

Innovation Solution

The implementation of multi-radio data packet techniques that multiplex information onto multiple radio pathways, allowing concurrent transmission of data packet portions over different wireless channels using frequency division or space division methods, thereby increasing bandwidth and reducing interference through spatial separation of signals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple radio pathways are used for concurrent data transmission, then single-user throughput is improved, but device complexity increases

Engineering Contradiction:
Improvesingle-user throughputVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The data packet is segmented into multiple portions, with each portion transmitted over a different radio pathway. The MAC layer divides the MPDU into multiple segments that are then processed by different radio units, enabling parallel transmission while maintaining manageable complexity at each individual radio unit.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extends transmission from a single radio dimension to multiple radio dimensions by utilizing multiple radio pathways simultaneously. This dimensional expansion allows concurrent data transmission over different wireless channels, frequency bands, or spatial paths, thereby increasing throughput without proportionally increasing the complexity of each individual transmission path.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Quantity of substance

If information is multiplexed onto multiple radio pathways, then bandwidth utilization is improved, but signal processing complexity increases

Engineering Contradiction:
Improvebandwidth utilizationVSAvoidsignal processing complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The information stream is segmented into multiple portions that are independently processed and transmitted over different radio pathways. Each radio unit processes only its assigned segment, dividing the overall signal processing complexity into manageable portions while collectively utilizing broader bandwidth.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple radio units are configured to perform similar processing functions on different segments of the data, allowing each unit to operate with standardized, manageable complexity while collectively achieving high bandwidth utilization through their combined multi-functional operation.

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

3Object-affected harmful factors

If concurrent transmissions are performed over different wireless channels, then interference management is improved, but coordination complexity increases

Engineering Contradiction:
Improveinterference managementVSAvoidcoordination complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The data transmission is segmented across multiple radio pathways that operate on different wireless channels, frequency bands, or spatial paths. This segmentation naturally distributes interference exposure across separate channels, reducing the impact of interference on any single transmission while the MAC layer coordinates the segments to ensure proper reassembly at the receiver.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10419143B1Multi-radio device for WLAN
Publication Date: 2019.09.17 MARVELL ASIA PTE LTD
  • US10419143B1 patent drawing
  • US10419143B1 patent drawing
  • US10419143B1 patent drawing

AI summary

The present disclosure includes systems and techniques relating to wireless local area network devices. Systems and techniques include multiplexing information for a single wireless communication device onto multiple radio pathways to produce a data packet, operating the multiple radio pathways to generate different portions of the data packet, and transmitting the data packet to the single wireless communication device by concurrent transmissions of the different portions of the data packet over different wireless channels.