Wireless Base Station Emulating EPC Server for Offline Operation

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Solution Overview

Problem

Wireless base stations disconnected from the Evolved Packet Core (EPC) server disrupt network functionality for electronic devices, necessitating a solution for offline operation to maintain network application functions and enable closed wireless local area networks.

Innovation Solution

A wireless base station can emulate the EPC server, connecting electronic devices through a wireless communication module, and optionally search and connect with surrounding base stations using protocols like ping, ARP, or a distributed hash table to establish a wireless local area network.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the wireless base station is connected to the EPC server, then network functionality is provided, but the system cannot operate independently when disconnected

Engineering Contradiction:

Improvenetwork functionalityVSAvoidoffline operation capability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The base station creates a virtual EPC server that copies the essential functions of the real EPC server, allowing electronic devices to connect and operate network applications even when the actual EPC server is inaccessible. This virtual copy enables offline operation while maintaining network functionality.

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The virtual EPC server acts as an intermediary between the base station and electronic devices, mediating network operations locally without requiring connection to the external EPC server. This intermediary enables independent offline operation while preserving network capabilities.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the wireless base station emulates the EPC server, then offline network operation is enabled, but device complexity increases

Engineering Contradiction:

Improveoffline operation capabilityVSAvoidbase station functionality

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The EPC server functionality is segmented into virtual components that can be instantiated locally at the base station. This segmentation allows the base station to emulate only the necessary EPC server functions required for offline operation, rather than implementing the entire EPC server complex.

Inventive Principle:

Principle #1Segmentation

3Ease of operation

If electronic devices connect to the virtual EPC server, then network applications function offline, but network security requirements become more complex

Engineering Contradiction:

Improvenetwork application functionalityVSAvoidnetwork security management

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The virtual EPC server copies the authentication and security management functions of the real EPC server, enabling offline network operations while maintaining security protocols. This allows network applications to function normally without external connection while preserving security requirements.

Inventive Principle:

Principle #26Copying

Data Source

PatentUS10111139B2Offline-operable wireless network system and method for operating the same

Publication Date: 2018.10.23 GEMTEK TECH CO LTD

AI summary

The present invention relates to an offline-operable wireless network system and the method for operating the same. When a wireless base station is not connected to the evolved packet core (EPC) server, the wireless base station will emulate the EPC server. Thereby, the electronic device connected with the wireless base station can be connected to the emulated EPC server, so that the wireless network functions still can be applied in the offline state and a wireless local area network can be further built.