• Electronics and Telecommunications Trends
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• v.37 no.5
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• pp.70-81
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• 2022

This study derived implications regarding competition policy to establish a reasonable spectrum allocation draft of a 3.7 GHz spectrum band by indepth analysis of 5G spectrum auctions. The following general features were identified by examining auctions of three countries, including the United States, United Kingdom, and Denmark, were completed in 2021. First, securing the minimum bandwidth that is essential for service competition was guaranteed by applying the spectrum cap. Second, a continuous spectrum band was allocated to all mobile network operators. Third, certain requirements were implemented to encourage the expansion of 5G service coverage. The spectrum cap that was implemented in Korea during the most recent spectrum auction was ineffective regarding competition policy. Additionally, it is anticipated that the allocation of 3.7-4.0 GHz spectrum will considerably impact market competition because the continuity of spectrum band is different among mobile service operators. Therefore, it is time to discuss promoting the 5G service competition in Korea by revising related laws.

• Magazine of korean Tunnelling and Underground Space Association
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• v.10 no.1
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• pp.40-50
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• 2008

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2013.03a
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• pp.56-58
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• 2013

• Water for future
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• v.46 no.2
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• pp.88-94
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• 2013

• Magazine of korean Tunnelling and Underground Space Association
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• v.10 no.2
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• pp.71-79
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• 2008

• Railway Journal
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• v.17 no.1
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• pp.18-30
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• 2014

• The Journal of Bigdata
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• v.4 no.1
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• pp.83-97
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• 2019

With sensor and communication technology development, spatial data related to business activities is exploding. Spatial data is now evolving into atypical data about space over three dimensions, away from two-dimensional geographic data. In addition to the Fourth Industrial Revolution, which connects the virtual space with the real space, there is a great opportunity for companies to utilize it. The analysis of recent overseas cases shows that it is possible to analyze customized services by understanding the situation of customers and objects located in the space, to manage risk, and furthermore to innovate business processes by analyzing spatial data. In the future, business innovation that combines spatial data from various sources and real-time analysis of relationships and situations between people and objects in space is expected to expand in all business fields.

• Korean journal of communication and information
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• v.59
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• pp.233-258
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• 2012

The purpose of this study is to research on the mechanism of exportation of Korean TV programs. As a result, the buying countries of Korean TV programs have been relatively diversified : 40 countries across the world. However, examining the frequency of exportation has shown that it primarily focused on few countries such as Japan and Taiwan. Furthermore, drama has been the most preferred genre by foreign countries. Fortunately, remakes, dubbing productions, publications, and merchandising have been started to develop. As for the trade partner, the portion of foreign distributors has been ranked as a the most prioritized type. Therefore, it is necessary to open the existing closed system of distribution of Korean free TV to build more diversified partnership.

• Journal of the Korean Society for Library and Information Science
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• v.42 no.3
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• pp.233-257
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• 2008

The integration, openness, participation, and technology are essential elements of digital information resources in order to establish an unified and cooperative network of various digital knowledge-information abroad. This study analyzes policies, technologies and administrative aspects of international cooperative networks such as WDL, IPL, TEL. Based on the analysis, a number of collection standards for international cooperation are drawn. Analyzed standards are divided into four different aspects and applied to produce detailed appraisal standards for digital knowledge-information. In conclusion, in order to map out strategies and policies for developing an international cooperative network, the study proposes a number of principles and models for making an appraisal of collections.

• Journal of the Korean Data and Information Science Society
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• v.28 no.3
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• pp.605-615
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• 2017

Recently, financial supervisory authority of Korea and international credit rating agencies have been concerned about a stand-alone rating that is calculated without incorporating guaranteed support of parent companies. Guaranteed by parent companies, most foreign subsidiaries keeps good credit rate in spite of weak financial status. However, what if the parent companies stop supporting the foreign subsidiaries, they could have a probability to go bankrupt. In this paper, we have validated a credit rating model through statistical measurers such as performance, calibration, and stability for Korean companies owning foreign subsidiaries.