Access Point Candidate List for Faster Wireless Roaming

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Solution Overview

Problem

Conventional wireless network roaming technologies require full-channel scanning by mobile devices to acquire information of neighbor wireless access points, leading to excessive time and power consumption, and lack an effective candidate wireless access points list.

Innovation Solution

An access point generates a candidate wireless access points list by receiving and analyzing messages from remote access points, allowing it to provide a targeted neighbor report response to mobile devices, reducing the need for full-channel scanning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If mobile devices perform full-channel scanning to acquire information of neighbor wireless access points, then the mobile device can acquire comprehensive information of available access points, but it results in large amount of extra time and power consumption

Engineering Contradiction:

Improveinformation completenessVSAvoidpower consumption

Core Design Contradiction:

Loss of informationVSUse of energy by moving object

Solution Approach 1:

The access point performs preliminary channel scanning and generates a candidate wireless access points list before the mobile device needs roaming information. This preliminary action filters and pre-processes the neighbor access point information, so when the mobile device requests roaming information, it receives a pre-scanned candidate list rather than requiring the device to perform full-channel scanning itself, thereby reducing the device's power consumption while maintaining information completeness.

Inventive Principle:

Principle #10Preliminary action

2Loss of information

Engineering Contradiction:

Improveinformation completenessVSAvoidtime consumption

Core Design Contradiction:

Loss of informationVSLoss of time

Solution Approach 1:

The access point performs preliminary channel scanning and generates a candidate wireless access points list before the mobile device needs roaming information. This preliminary action filters and pre-processes the neighbor access point information, so when the mobile device requests roaming information, it receives a pre-scanned candidate list rather than requiring the device to perform full-channel scanning itself, thereby reducing the device's time consumption while maintaining information completeness.

Inventive Principle:

Principle #10Preliminary action

3Device complexity

If access points do not provide effective candidate wireless access points list, then the access point structure remains simple, but the mobile device cannot rapidly find suitable neighbor wireless access points

Engineering Contradiction:

Improveaccess point structure complexityVSAvoidroaming speed

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The access point performs preliminary channel scanning and generates a candidate wireless access points list in advance. This pre-computed list is then provided to the mobile device when roaming is needed, significantly accelerating the roaming process. The access point maintains relatively simple structure by using standard channel scanning mechanisms while achieving high productivity through the pre-computed candidate list approach.

Inventive Principle:

Principle #10Preliminary action

4Device complexity

If access points do not provide effective candidate wireless access points list, then the access point structure remains simple, but it cannot provide effective neighbor report response to mobile devices

Engineering Contradiction:

Improveaccess point structure complexityVSAvoidneighbor report effectiveness

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The access point performs preliminary channel scanning and generates a candidate wireless access points list in advance, which is then provided to the mobile device when roaming is needed. This pre-computed list ensures that the neighbor report response is both effective and reliable, as it contains pre-validated candidate access points rather than requiring the device to perform its own scanning, thereby improving reliability without significantly increasing access point complexity.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250392982A1Access point and method for establishing a candidate wireless access points list

Publication Date: 2025.12.25 EMPLUS TECH INC

AI summary

An access point and a method for establishing a candidate wireless access points list are provided. The access point includes a transceiver and a processor, wherein the processor is electrically connected with the transceiver. The transceiver is configured to receive a wireless access points message or a plurality of wireless access points messages transmitted by a remote wireless access point or a plurality of remote wireless access points, respectively. The processor is configured to generate a candidate wireless access points list based on the wireless access points message or the plurality of wireless access points messages. The transceiver is also configured to execute channel scanning based on the candidate wireless access points list, and the processor is also configured to generate a neighbor wireless access points list based on a result of the channel scanning.