Home Network Tunneling via Mobile Gateway Address Forwarding

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Solution Overview

Problem

Existing methods for connecting client devices to home area networks via mobile communication networks require significant operational effort and do not provide a seamless user experience, especially when direct connectivity is not possible.

Innovation Solution

A system and method that utilizes a mobile communication network to establish a tunnel between a client device and a residential gateway, splitting traffic destined for the home area network from Internet traffic, and employing a forwarding function to replace private addresses with public addresses, ensuring secure and efficient connectivity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If a fixed infrastructure (xDSL, cable modem, fiber optics) is deployed to provide broadband access, then high data transmission rates and permanent connectivity are achieved, but deployment cost and infrastructure complexity increase significantly

Engineering Contradiction:
Improvedata transmission rateVSAvoidinfrastructure complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent introduces a mobile communication network as an intermediary layer between users and the home area network. Mobile network base stations act as mediators that relay data traffic between mobile devices and the HAN, enabling broadband access without requiring fixed infrastructure deployment in each location. This resolves the contradiction by providing high-speed access through an intermediate mobile network layer rather than direct fixed line installation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent enables mobile communication networks to serve dual purposes: traditional mobile voice/data services and fixed broadband access to home networks. The mobile network infrastructure is utilized for multiple functions including cellular communication and wired home network access, eliminating the need for separate dedicated fixed infrastructure and reducing overall system complexity while maintaining high data transmission capabilities.

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

2Ease of operation

If mobile communication is used for data transmission, then mobility and ease of connection are improved, but data transmission rate and network reliability deteriorate due to signal instability

Engineering Contradiction:
Improvemobility and connection easeVSAvoidsignal stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The gateway device serves as a stable intermediary anchor point within the home network that maintains permanent connectivity. While mobile devices can move freely, the gateway provides a reliable fixed connection point that mediates between the mobile device and the home area network, ensuring signal stability and network reliability even as devices move throughout the coverage area.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system establishes permanent connection parameters and network configuration in advance during initial setup. The gateway device pre-configures network settings, authentication credentials, and connection parameters before mobile devices need to connect. This preliminary configuration ensures reliable and stable communication without requiring repeated negotiation or reconfiguration as devices move, maintaining both mobility and signal stability.

Inventive Principle:
Principle #10Preliminary action

3Stability of the object's composition

If a permanent connection is established for home network access, then network stability and data security are improved, but adaptability to mobile users and flexibility deteriorate

Engineering Contradiction:
Improvenetwork stabilityVSAvoidmobile user flexibility
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic connection management where the system adapts between stable fixed connections and flexible mobile connections based on user needs. The gateway maintains permanent stable connections for fixed devices while simultaneously supporting dynamic mobile device connections that can be established and terminated flexibly. This dynamic approach allows the network to maintain stability for core infrastructure while providing adaptability for mobile users.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The gateway device provides universal access capabilities supporting both fixed and mobile connection types through a single unified interface. It handles diverse connection scenarios including wired connections for stationary devices and wireless connections for mobile devices, maintaining network stability while accommodating various user mobility requirements. This multi-functional approach eliminates the need for separate systems for fixed and mobile access.

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

4Area of stationary object

If infrastructure is deployed to cover a large area, then service coverage is improved, but deployment cost and complexity increase

Engineering Contradiction:
Improveservice coverage areaVSAvoiddeployment complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent merges mobile network infrastructure with home network access infrastructure into a unified system. By combining the mobile communication network's existing wide-area coverage capability with home network gateway functionality, the system achieves broad service coverage without requiring separate fixed infrastructure deployment in each location. This consolidation reduces deployment complexity while maintaining extensive geographic coverage through the mobile network's existing cell tower infrastructure.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3850797B1Connecting to a home area network via a mobile communication network
Publication Date: 2026.04.29 KONINK KPN NV
  • EP3850797B1 patent drawingFigure 1
  • EP3850797B1 patent drawingFigure 2
  • EP3850797B1 patent drawingFigure 3

AI summary

The system of the invention is configured to receive from a client device (41) located in the mobile communication network (1) a request to connect to a home area network (5), determine an identifier of a residential gateway (61) in the home area network or of a fixed-line network (3) to which the home area network is coupled, and transmit a request for an address and a range of addresses in the home area network to the residential gateway or the fixed-line network corresponding to the determined identifier. The system is further configured to receive the address and the range of addresses from the residential gateway or the fixed-line network, transmit the address to the client device, establish a tunnel with the residential gateway and establish a forwarding rule at a forwarding function (15) of the mobile communication network.