Shared Access Point Handover for Uninterrupted Wireless Links

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Solution Overview

Problem

When a terminal apparatus switches the access point to which it is wirelessly connected, there is a desire to do so without causing instantaneous interruption.

Innovation Solution

A terminal apparatus configures a communication system with a sharing access point and multiple shared access points, allowing it to request a switch from one wireless link to another based on notifications from these access points, thereby managing the transition without interruption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the terminal apparatus switches the access point to which it is wirelessly connected, then the terminal apparatus can maintain wireless connectivity in a multi-AP environment, but instantaneous interruption occurs during the switching process

Engineering Contradiction:

Improveaccess point switching capabilityVSAvoidcontinuous wireless communication

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system establishes a first wireless link with a sharing AP via a first shared AP before switching is needed. When switching is required, a second wireless link with the same sharing AP via a different shared AP is pre-configured and ready, allowing seamless transition without interruption.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The sharing AP acts as an intermediary that coordinates the switching process between the terminal apparatus and multiple shared APs. The sharing AP receives switching requests from the terminal and manages the transition by notifying relevant shared APs, ensuring continuous connectivity throughout the switching process.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If multiple shared access points are used to provide wireless links, then access point switching becomes possible, but the system complexity increases

Engineering Contradiction:

Improvewireless link switchingVSAvoidmulti-AP system structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple shared APs are merged into a coordinated system managed by a single sharing AP. The sharing AP consolidates the management of multiple wireless links, allowing the terminal to switch between them while the sharing AP handles the complexity of coordinating multiple shared APs, thus simplifying the overall system structure from the terminal's perspective.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4679889A1Terminal device, sharing access point, shared access point, and communication method therefor

Publication Date: 2026.01.14 NT T INC

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AI summary

A terminal apparatus configures a communication system with a sharing access point, and a shared access point and another shared access point provided at positions away from the sharing access point. The terminal apparatus is configured to request, when a first wireless link with the sharing access point via the shared access point is established, the sharing access point to switch from the first wireless link, and switch from the first wireless link to a second wireless link with the sharing access point via the another shared access point in response to a notification based on a request from the sharing access point to the shared access point and the another shared access point.