Communication Network Switch Device for Mobile Telephony

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Solution Overview

Problem

Mobile communication devices and internet telephony systems cannot directly communicate, requiring expensive long-range wireless networks, which increases user fees and limits communication routes.

Innovation Solution

Implementing a communication network switch device that integrates short-range wireless networks, such as Bluetooth and 802.11, with cable telephony and internet telephony systems to enable direct communication between mobile devices without relying on long-range wireless networks, using H.323 and SIP protocols for real-time audio and data transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If long-range wireless network system is used for communication between mobile communication devices, then communication coverage is improved, but user fees increase and communication efficiency decreases

Engineering Contradiction:

Improvecommunication coverageVSAvoidcommunication efficiency

Core Design Contradiction:

Area of stationary objectVSProductivity

Solution Approach 1:

The communication network is segmented into multiple access modes: short-range wireless access for local communication, cable telephony access for fixed-line communication, and internet telephony access for VoIP communication. This segmentation allows mobile devices to switch between different access networks based on communication needs, improving overall communication efficiency while maintaining wide coverage

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A gateway device is introduced as an intermediary that connects short-range wireless networks with cable telephony and internet telephony systems. This gateway enables mobile devices to communicate through alternative paths (cable or internet protocols) when long-range wireless is not needed, thereby improving communication efficiency and reducing costs

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If long-range wireless network system is used for communication between mobile communication devices, then communication route is simplified, but user fees increase

Engineering Contradiction:

Improvecommunication route complexityVSAvoidcommunication cost

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The communication system is designed with multi-functionality, supporting multiple communication protocols and access methods (short-range wireless, cable telephony, internet telephony) within a single integrated network. This universality allows the system to select the most cost-effective communication path while maintaining route simplicity through automated protocol selection and gateway routing

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Productivity

If mobile communication device communicates with internet telephony directly, then communication cost is reduced, but communication compatibility is worsened

Engineering Contradiction:

Improvecommunication costVSAvoidcommunication compatibility

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The gateway device serves as an intermediary that handles protocol conversion and translation between mobile communication devices using short-range wireless protocols and internet telephony systems using H.323 or SIP protocols. This intermediary ensures compatibility while enabling cost-effective direct communication paths

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system dynamically changes communication parameters including protocol selection, access network choice, and routing paths based on communication requirements, device capabilities, and cost considerations. This parameter adaptation enables both cost reduction and compatibility maintenance through flexible protocol translation and network selection

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS7440753B2Communication network switching system and method thereof

Publication Date: 2008.10.21 MICROCHIP TECHNOLOGY INC

AI summary

A communication network switch system, comprising: a first phone number database accessed by a cable telephony network service provider; a second phone number database accessed by an internet service provider; a plurality of communication network switch devices conducting audio and/or data communications therebetween through a cable telephony network or an internet, the communication network switch devices switching audio and/or data communications between the cable telephony network or an internet telephony system and a short-range wireless communication network; and a plurality of mobile communication devices each of which including a long-range wireless network system transceiver module, a short-range wireless network system transceiver module and a switch device module. The communication network switch device includes a short-range wireless communication network transceiver module, a cable telephony network transceiver module, an internet telephony system drive module, a first switch module and a second switch module. The first switch module of the communication network switch device stores a communication number of a long-range wireless communication network of the mobile communication device and an assigned phone number of the switch device module in the cable telephony network in the first phone number database. The second switch module of the communication network switch device stores a communication number of a long-range wireless communication network of the mobile communication device and an IP address of the second switch module in the second phone number database.