Wireless LAN Cross-Connection for Stable Concurrent AP Links

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Solution Overview

Problem

Existing wireless LAN systems face challenges in maintaining stable concurrent communication between an electronic device and an access point (AP) while also supporting direct communication with an external device, leading to potential loss of connection or deteriorated quality of real-time services due to channel mismatches.

Innovation Solution

The electronic device is configured to establish a group client connection with an external device as a group owner, allowing it to maintain a second connection with the AP for external network communication, thereby stabilizing concurrent communication through channel management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the electronic device performs concurrent communication with both AP and external device using different channels, then communication flexibility is improved, but connection stability deteriorates due to beacon frame loss

Engineering Contradiction:
Improvecommunication flexibilityVSAvoidconnection stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent segments the communication function into two independent connections: a first connection for direct communication with the external device and a second connection for communication with the AP. This segmentation allows each connection to operate independently on different channels, enabling concurrent communication while maintaining stability by preventing interference between the two communication paths.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a connection management mechanism that acts as an intermediary to coordinate between the direct communication connection and the AP communication connection. This intermediary manages channel allocation and timing to ensure that beacon frames and data transmissions do not conflict, thereby maintaining connection stability while supporting flexible concurrent communication.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If the electronic device uses the same channel for both AP communication and direct communication, then device complexity is reduced, but service quality deteriorates due to channel conflicts

Engineering Contradiction:
Improvechannel management complexityVSAvoidservice quality
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent segments the communication channels into a first channel for direct communication with the external device and a second channel for communication with the AP. This channel segmentation eliminates conflicts between beacon frames and data transmissions, ensuring high service quality for real-time applications while maintaining manageable complexity through systematic channel allocation.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If the electronic device maintains concurrent connections with multiple APs and external devices, then adaptability is improved, but loss of direct communication increases due to beacon frame interference

Engineering Contradiction:
Improveconcurrent connection capabilityVSAvoidbeacon frame loss
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent segments communication resources including channels and time slots to handle multiple concurrent connections. By assigning dedicated channels and timing to each connection, the system supports concurrent connections with multiple APs and external devices while preventing beacon frame interference and loss, thereby maintaining both adaptability and reliability.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4709028A1Electronic device for wireless LAN communication, and operation method thereof
Publication Date: 2026.03.11 SAMSUNG ELECTRONICS CO LTD
  • EP4709028A1 patent drawingFigure 1
  • EP4709028A1 patent drawingFigure 2A
  • EP4709028A1 patent drawingFigure 2B

AI summary

An embodiment of the disclosure relates to a device and a method for wireless LAN communication in an electronic device. According to an embodiment, the electronic device may include a communication circuit configured to support a wireless LAN communication and at least one processor, wherein the at least one processor allows to be configured as a group client for direct communication with an external electronic device configured as a group owner, and in case that the external electronic device establishes a communication connection with a first AP and the external electronic device supports a cross connection, in a state in which a first connection for direct communication with the external electronic device has been established through a first communication protocol of the communication circuit, establish a second connection with the external electronic device for communication with an external network through the first AP to which the external electronic device is connected. Other embodiments may be also possible.