• The Journal of Korean Institute of Communications and Information Sciences
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• v.38C no.1
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• pp.19-32
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• 2013

This paper suggests smart gateway structure and functionalities that provide device web service which can be used by user using objectified devices. The smart gateway objectify a physical device in other to provide the device web service in IoT intelligent service. And the paper suggests a mechanism that provide orchestrated service of various devices to user using a concept of service overlay network. and also suggests a interface that provide device web services and the orchestrated service between the smart gateway and a web service platform. In the paper, the objectified devices can be combined with web service objects and device contexts based on the service overlay network, furthermore the objectified devices can provide intelligence and dynamic service in the IoT environment.

• International Commerce and Information Review
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• v.9 no.1
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• pp.467-491
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• 2007

The Korean Peninsula has the gateway role of Far East Asia in economic aspect, because it is the channel to global world that Korea and Japan should take in the future. Till now, there was no real economic cooperation in service industry for two Koreas. Nevertheless, it is high time that two Koreas have to play a gateway role in order to pave the way to come true their global vision. This paper aims to examine the possibility of economic cooperation between two Koreas in service sector and explore the vision and strategy which are useful for the ways toward peaceful unification on the Korean Peninsula and two Koreas' future survival in the midst of global competition. Economic cooperation in service sector, such as transport, tourism, educational services, etc. between two Koreas means establishing and strengthening the infrastructure of their unification. If there were no cooperation of service sector on the Korean Peninsula, we also could not expect the outcome of economic cooperation and the vision of Korea's unification. To sum up, the strategy recommended for the Korean Peninsula's global vision is that two Koreas should simultaneously open the window of economic cooperation in service sector and link the interface between the Eurasian continent and the Korean Peninsula.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.05a
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• pp.909-912
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• 2008

The 'convergence service' in NGN implies the integration of services in NGN with a unified manner to access each service in order to interwork with each service. This Recommendation defines the convergence model for NGN based on Web Services and provides a detailed scenario of each convergence model in form of Web Services.

• Proceedings of the IEEK Conference
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• 2001.06c
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• pp.225-228
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• 2001

There are two standards currently compete for the dominance of IP telephony architecture. Those are H.323 protocol suit by International Telecommunication Union Sector T(ITU-T) and Session Initiation Protocol/Session Description Protocol(SIP/SDP) by International Engineering Task Force(IETF). This paper has been studied a adaption VoIP in home networking, Especially SIP-based call screening service in home gateway. And then this paper has designed SIP-based call screening service in home gateway working protocol, verified them.

• Journal of the Korean Institute of Intelligent Systems
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• v.11 no.6
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• pp.543-548
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• 2001

In the case of mobile internet service using WAP it was connected to http protocol using WAP Gateway, So users take increased cost of mobile internet service. And it was generated inner security problem because it watched user information in the WAP Gateway. To solve this problem we use java language Which is independant of platform and low cost and intensely security an downloadable application. Additional , Using socket connection. Wire.Wireless Messaging system(WWMS) will connect real time between PC-Client and Mobile-Client, Mobile-Client and Mobile-Client, and so on. In this paper, as design and implementation of multi-platform wire.wireless messaging use J2Me. It will be foundation do develop various mobile application in the future.

• Proceedings of the IEEK Conference
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• 2000.11a
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• pp.259-262
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• 2000

MSF(MultiService Switching Forum) 개념이 도입된 개방형 시스템 구조를 적용한 고성능 스위칭 시스템 개발이 필요하며, Media Gateway System은 ATM망에서 중저속의 Non-ATM 인터페이스를 수용하는 ATM access multiplexer/concentrator로서 ATM 물리계층 기능, ATM 계층 기능, 회선대행 기능, AAL2 trunking 기능, N-ISDN 연동 기능 및 FR/ATM 연동기능을 제공한다. 본 논문에서는 Media Gateway System에 FR/ATM 연동 기능을 구현하기 위하여 적용할 연동 규격을 살펴보고 FR/ATM 연동시스템 구조를 제안하였다.

• Proceedings of the Korean Information Science Society Conference
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• 2000.10c
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• pp.129-131
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• 2000

최근 무선 인터넷 서비스에 대한 관심이 고조되면서 관련 기술 개발이 활발히 진행되고 있다. 현재 가장 유력한 국제표준 중 하나로 인식되어 가고 있는 WAP(Wireless Application Protocol)의 규격에 따르면 이동 단말과 WAP 서버는 WAP Gateway를 통하여 통신하도록 되어 있다. 본 논문은 리눅스 기반으로 WAP Gateway와 Server가 통합적으로 지원되는 IWAP 플랫폼의 설계 및 구현에 것이다. 제안된 IWAP 플랫폼은 WAP Gateway JABA 기반의 Server 개발환경, WML Tool-Kit 및 MUI(Management User Interface)등 크게 4개의 모듈로 구성되고, 베어러(bearer) 망으로 SMSC(Short Message Service Center)나 CSD(Circuit Switched Data) 라우터를 고려하였다.

• The Journal of the Korea institute of electronic communication sciences
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• v.10 no.10
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• pp.1157-1162
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• 2015

The maintenance function of Solar power plant is configured with Sensor devices, Gateway, and Maintenance Function Platform. In this paper, we designed gateway resource tree and service scenario to fit the Maintenance Function and demonstrated appropriate operation of the maintenance service through intelligent functional modeling.

• Proceedings of the IEEK Conference
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• 2002.06a
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• pp.307-310
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• 2002

This paper is proposed due to the fact that resolving domain name with conventional input method to PDA is not so convenient. The substance of this paper is that a user Pronounces tile character which represents tile domain name and that vocalized character is transferred through the GATEWAY, where DNS service can be received in return. PDA receives, compress and send the voice to the GATEWAY, Then, the GATEWAY uncompress, recognizes the voice, converts to characters, search for the mapping entry After mapping to the mapping entry, the GATEWAY sends the DNS request. Combining two entities makes DNS service based on the human voice possible.

• Journal of The Institute of Information and Telecommunication Facilities Engineering
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• v.9 no.1
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• pp.29-34
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• 2010

In this study, we realized the broadband home gateway system of dual mode based upon EDR 2~3Mbps transmission speed and 300Mbps of 802.11n, In broadcasting and telecommunication convergence networks to deliver multimedia services, high-quality home. The bluetooth module is designed to use general low rate data speed service and the 802.11n module also is designed to use high rate speed service at various home network situation. The dual mode home gateway system, bluetooth and 802.l1n module, is well realized for many specification such as emission power, spurious power, impedance matching, frequency channel test.