Multi-Network Group Creation for Wide-Area LAN Communication

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Solution Overview

Problem

Conventional local area networks (LANs) are limited by small coverage areas and lack flexibility and mobility, failing to meet the requirements of new enterprise and smart home office modes.

Innovation Solution

A group creation method involving group management network elements on multiple networks collaborate to create groups for terminal devices, allowing them to communicate across geographical boundaries, with mechanisms for permission verification and efficient identifier allocation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a conventional local area network is used, then data transmission efficiency is high and bit error rate is low, but coverage area is limited to a small geographical range

Engineering Contradiction:
Improvecoverage areaVSAvoidnetwork complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent divides the large-scale network into multiple smaller local area networks, each managed by a separate group management network element. Each LAN maintains its simple structure while the system as a chain achieves wide coverage through interconnection of multiple segmented networks.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extends the network from a single geographical location to multiple locations by introducing a multi-dimensional group identification mechanism. Groups can be created across different networks and geographical areas, transforming the network from a two-dimensional local structure to a multi-dimensional distributed structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If a conventional local area network is used, then network structure is simple, but flexibility and mobility are insufficient for new enterprise and smart home modes

Engineering Contradiction:
Improveflexibility and mobilityVSAvoidnetwork management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The group management network element is designed with multi-functional capabilities to handle group creation, modification, deletion, and identifier allocation across multiple networks. This universal component provides flexibility and adaptability while maintaining manageable complexity through standardized procedures.

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

Solution Approach 2:

The patent introduces dynamic group creation and modification capabilities that allow networks to adapt to changing requirements. Groups can be created, modified, and deleted dynamically, and group identifiers can be reallocated as needed, providing the flexibility and mobility required for new enterprise and smart home modes.

Inventive Principle:
Principle #15Dynamics

3Area of stationary object

If group creation is allowed across multiple networks, then coverage area and flexibility are improved, but permission verification and identifier allocation become more complex

Engineering Contradiction:
Improvecoverage areaVSAvoidpermission verification difficulty
Core Design Contradiction:
Area of stationary objectVSDifficulty of detecting and measuring

Solution Approach 1:

The patent implements preliminary permission verification before group creation operations. The group management network element checks whether the terminal device or application network element has the necessary permissions before allowing group creation, modification, or deletion, preventing unauthorized operations across multiple networks.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The group management network element acts as an intermediary between terminal devices/application network elements and the multi-network group creation process. It mediates permission verification and group identifier allocation, simplifying the complexity by providing a centralized coordination point across multiple networks.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12425305B2Group creation method, apparatus, and system
Publication Date: 2025.09.23 HUAWEI TECH CO LTD
  • US12425305B2 patent drawing
  • US12425305B2 patent drawing
  • US12425305B2 patent drawing

AI summary

A group creation method, an apparatus, and a system, the method including receiving, by a group management network element on a first network, a group creation request requesting creation of a group for local area network communication, allocating, by the group management network element on the first network, a group identifier to the group, sending, by the group management network element on the first network, the group identifier to a terminal device that is in the group and whose home network is the first network, and sending, by the group management network element on the first network when the group includes a terminal device whose home network is a second network, the group identifier and an identifier of the terminal device that is in the group and whose home network is the second network to a group management network element on the second network.