IMS VoIP Interworking Gateway for Cost Reduction

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Solution Overview

Problem

Conventional VoIP services require high-performance terminals for peer-to-peer communication, leading to increased costs and battery consumption due to high traffic demands, especially for presence-based services in IMS networks.

Innovation Solution

A service interworking apparatus and method that converts information between IMS and VoIP networks, allowing IMS terminals to support VoIP services by authenticating and interworking with VoIP networks, reducing the need for high-cost dedicated VoIP terminals and minimizing battery consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a terminal equipped with a VoIP client is used for peer-to-peer VoIP communication, then VoIP service functionality is improved, but terminal cost increases

Engineering Contradiction:

ImproveVoIP service functionalityVSAvoidterminal cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent introduces a VoIP gateway as an intermediary device between the IMS network and the VoIP service network. The gateway performs protocol conversion and message transformation, allowing IMS terminals without native VoIP client support to access VoIP services through the gateway's mediation, thus eliminating the need for expensive dedicated VoIP terminals

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The VoIP gateway provides multi-functional capabilities by supporting both IMS network operations and VoIP service network operations simultaneously. It can handle SIP message routing, protocol conversion, and service logic execution, making a single device capable of serving multiple network types and reducing overall system cost

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If presence-based peer-to-peer VoIP communication is implemented, then service functionality is improved, but battery consumption increases

Engineering Contradiction:

Improvepresence-based VoIP serviceVSAvoidbattery consumption

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The VoIP gateway acts as an intermediary that manages presence information centrally. Instead of requiring the terminal to continuously monitor and maintain presence status in the VoIP network, the gateway handles presence registration and status updates, significantly reducing the terminal's processing load and battery consumption

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system implements self-service mechanisms where the VoIP gateway automatically manages presence information synchronization between the IMS network and VoIP service network. The gateway autonomously handles presence status updates, message routing, and service logic execution without requiring continuous active participation from the terminal, thereby minimizing energy consumption

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS8787356B2Apparatus and method for providing other service in IP multimedia subsystem (IMS)

Publication Date: 2014.07.22 SAMSUNG ELECTRONICS CO LTD

AI summary

An apparatus and a method for providing other Voice over Internet Protocol (VoIP) services (e.g., Skype, Google talk, and the like) using a terminal which supports an IP Multimedia Subsystem (IMS) network are provided. The apparatus includes an interworking apparatus for converting information received from a VoIP service network to information supportable by an IMS terminal to interwork the IMS terminal and other VoIP services not supported by the IMS terminal, and converting information received from the IMS terminal to information supportable by a VoIP service network.