Wireless Access Point Tethering Mode for Coverage Extension

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Solution Overview

Problem

Conventional wireless access point (WAP) systems face challenges in providing adequate coverage, especially at cell edges due to signal attenuation, and require additional equipment like extenders which increase costs, power consumption, and network complexity.

Innovation Solution

The system employs a method where a wireless access point detects a second communication device outside its coverage area but within the coverage of a first communication device. The access point then notifies the first communication device to operate in a tethering mode, allowing it to provide connectivity to the second device through the access point.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If an extender is implemented to increase wireless coverage, then coverage area is improved, but device complexity and cost increase

Engineering Contradiction:

Improvewireless coverage areaVSAvoidnetwork complexity

Core Design Contradiction:

Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent enables mobile devices to perform dual functions: serving as both client devices and as extenders/proxies for other clients. A mobile device can simultaneously connect to the WAP for its own access while also acting as a relay for other devices outside the WAP's coverage area, eliminating the need for dedicated extender hardware.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system allows mobile devices to automatically detect when they are within WAP coverage and capable of providing extended access to other devices. The mobile device self-configures to provide tethering services without requiring manual configuration or dedicated extender equipment, reducing network complexity.

Inventive Principle:

Principle #25Self-service

2Area of stationary object

If an extender is implemented to increase wireless coverage, then coverage area is improved, but manufacturing cost increases

Engineering Contradiction:

Improvewireless coverage areaVSAvoidmanufacturing cost

Core Design Contradiction:

Area of stationary objectVSEase of manufacture

Solution Approach 1:

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Instead of deploying physical extender hardware, the system creates virtual extenders using software-based tethering functionality on mobile devices. The mobile device copies the extender function through software implementation, avoiding the need to manufacture and deploy additional hardware equipment.

Inventive Principle:

Principle #26Copying

3Area of stationary object

If an extender is implemented to increase wireless coverage, then coverage area is improved, but power consumption increases

Engineering Contradiction:

Improvewireless coverage areaVSAvoidpower consumption

Core Design Contradiction:

Area of stationary objectVSUse of energy by moving object

Solution Approach 1:

The system dynamically activates tethering mode on mobile devices only when needed - specifically when the mobile device is within WAP coverage and can provide extended access to other devices. The mobile device can switch between normal operation and tethering provider mode based on real-time conditions, optimizing power consumption.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Inventive Principle:

Principle #25Self-service

4Object-affected harmful factors

If FCC power output limits are applied to WAP, then health and interference issues are reduced, but coverage area decreases

Engineering Contradiction:

Improvehealth and interferenceVSAvoidwireless coverage area

Core Design Contradiction:

Object-affected harmful factorsVSArea of stationary object

Solution Approach 1:

The patent segments the network coverage function by introducing intermediate mobile devices that act as relay points. Instead of requiring the WAP to provide high-power coverage throughout the entire area, the coverage function is segmented into multiple lower-power segments: WAP to mobile device, and mobile device to other clients. This allows the WAP to operate within FCC power limits while achieving extended coverage through the relay mechanism.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mobile device serves as an intermediary between the WAP and other clients outside the WAP's direct coverage area. The mobile device receives signals from the WAP and relays them to other devices, enabling extended coverage without requiring the WAP to transmit at higher power levels that would cause health or interference issues.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250126538A1System and method to manage and provide wireless tethering

Publication Date: 2025.04.17 CHARTER COMM OPERATING LLC

AI summary

A wireless access point receives a first report from a first wireless communication device. Via a report from the first wireless communication device, the wireless access point detects a condition in which a second communication device resides within a region of wireless coverage provided by the first wireless communication device. In response to detecting that the second wireless communication device resides outside a region of wireless coverage provided by the wireless access point and resides within the region of wireless coverage provided by the first wireless communication device, the wireless access point notifies the first wireless communication device to operate in a tethering mode. In the tethering mode, the first wireless communication device provides the second wireless communication device connectivity through the first wireless communication device to the wireless access point.