• International Journal of Contents
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• v.1 no.2
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• pp.13-17
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• 2005

Base Station Controller which belongs to IMT-2000(International Mobile Telecommunication - 2000) network has several types of structure for efficient control protocol. This difference of structure occurs two different protocols for call handling. Recently the need of IMT-2000 is highly increasing, so it is important to analyze the performance of processors and IPC(Inter-Processor Communication) module with structure of BSC and protocol difference. This paper presents the performance comparison of different types of BSC in view of processor utilization, waiting time, queue length and QoS(Quality of Service) through the simulation model.

• Journal of Information Technology Applications and Management
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• v.20 no.4
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• pp.67-81
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• 2013

Domestic telecommunication companies have increased in marketing expenditures and capital investments in their plants and equipments. Their expectation for their investment sometimes results in the shrinking of their ARPUs(average revenues per user) as well as decreasing of net profits. Those financial efforts have not always been positive relation with their ARPUs. Since western and european telecommunication industry recently have similar situation with our market where their mobile and network users have been saturated so that no more increased users are estimated. Therefore, this paper aims for first to explore methods maximizing the investments efficiency for the telecommunication company so that we choose bechmarked telecommmunication companies to explore their investment managing situation with resepct to their marketing and capital expenditure. Secondly this paper tried to suggest several public policy guidelines for domestic telecommunication industry. Total seventeen foreign telecommunication companies were selected and data set through official IR as well as AR were chosen. Curvilinear logarithmic regression analysis were tested to obtain elasticities as well as marginal effects. As a result, overspending on the marketing investment showed more negative indicators to their revenues, on the other hand, more investment in the Capex such as network infrastructures and other service facilities were more likely related to positive revenues.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11a
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• pp.604-606
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• 2005

유비쿼터스 컴퓨팅 환경에서 사용자는 자신의 위치와 주변 상황에 맞는 서비스를 제공 받기를 원하므로 사용자가 원하는 서비스를 다양한 상황에 맞게 적합한 서비스를 제공하는 것은 중요한 일이다. 기존 연구는 주로 서비스 발견에 관한 연구이며 사용자의 위치나 주변 환경, 선호도에 관한 고려가 부족하고, 사용자 정보 등을 이용하여 기본 서비스들로부터 새로운 서비스를 찾아내는 것이 미흡하다. 따라서 본 논문에서는 사용자의 상황 정보를 고려하여 최적의 서비스를 동적으로 생성하여 제공하는 COSEPS 프레임워크를 제안한다. 사용자의 시간과 위치와 같은 상황 정보에 동적으로 반응하여 서비스를 발견하고 데이터 마이닝과 온토롤지를 이용하여 서비스를 조합하고, 새로운 서비스를 생성하여 사용자에게 최적의 서비스를 제공한다.

• Korean Management Science Review
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• v.26 no.3
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• pp.101-115
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• 2009

In this paper, we propose a technology mining framework for mobile communication industry. We develop a two phase approach of new technology identification and service enhancement. The new technology identification process consists of R&D issues analysis, technology theme design, and emerging technology sampling. On the other hand, existing service enhancement process has technology landscaping, keyword based search, and technological growth analysis. By implementing these two phase frameworks, we develop a technology portfolio for mobile communication industry.

• 한국정보통신설비학회:학술대회논문집
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• 2007.08a
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• pp.273-278
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• 2007

In the next generation wireless mobile network, various methods are studied to offer interworking and mobility between various radio networks. To offer these harmoniously, network adaptation methods based on IP is generalized, and specifications of host-based mobility method with Mobile IPv4 and Mobile IPv6 to offer IP's mobility are defined in IETF specially. However, it is insufficient to satisfy quality of service that should be offered in wireless mobile network environment. Alternatively studies about Network-Based Mobility of Proxy Mobile IPv4, Proxy Mobile IPv6 etc. are preceded. This paper presents optimum plan that can offer mobility in the next generation radio transfer communication network by comparing and analyzing IP mobility methods divided by Host-based Mobility and Network-based Mobility.

• Knowledge Management Research
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• v.6 no.1
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• pp.71-84
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• 2005

This paper is aimed at investigating the influence of the fit between PDA (Personal Digital Assistant) driven mobile technology and tasks on performance. Our research motive was adopted from the burgeoning mobile technology which can be easily observed in modem management. Fit theory has been widely applied to proved the relationship between technology and tasks. However, there are few studies about the fit between mobile technology and tasks. A the advent of the IT, mobile technology started to affect individuals' lifestyle as well as the management style of firms. For the purpose of proving those hypotheses, we collected 173 questionnaires from 20 firms such as manufacturing industry, financial business, service company, telecommunication company which deem using the PDA technology for their management. We applied factor analysis and path analysis for our experiments Results revealed that the mobile technology holds a statistically significant fit with tasks and Individual characteristics.

• Proceedings of the Korean Information Science Society Conference
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• 2000.10c
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• pp.520-522
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• 2000

UMTS(Universal Mobile Telecommunication System)는 시간, 위치 및 단말기의 종류와 독립적으로 모든 사용자에게 동일한 서비스를 공급하는 것이 목적이다. 이를 위해서는 현재 사용자가 사용하고 있는 단말기의 종류나 사용자 위치에 독립적인 연결 설정과, 서비스 로밍(service roaming)의 기술이 필요하다. UMTS를 포함한 차세대 통신망에서 가장 중요한 개념은 서비스 로밍을 가능하게 해주는 VHE이다. VHE는 사용자에게 시간과 공간에 독립적인 일관적인 서비스를 제공하는 것이지만, 아직까지는 서로 다른 망을 연동 하는데 있어서 많은 문제점이 해결되지 않은 상황이다. 기존의 전화망과 인터넷망을 통합시켜주는 JAIN 기반 위에, Mobile Agent Technology(MAT)를 이용해서 기존환경의 문제점을 극복하고, 새로운 형태의 서비스를 창출할 수가 있다. 이 논문에서는 MAT를 기반으로 하여 이동 환경을 고려한 효율적인 정보검색 시나리오를 설계하고 그 시나리오를 제시한다.

• Information Systems Review
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• v.7 no.2
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• pp.85-100
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• 2005

Mobile banking, a type of digital convergence, has recently spread in the ubiquitous age. This study intends to identify the factors that affect the adoption of the mobile banking, which is a field similar to, but even more specialized than, the Internet banking. The results indicate that the significant factors affecting the usage of mobile banking are usefulness, service quality, and instant connectivity, while usability and social influences are not significant. These results are expected to be used for marketing the mobile banking and establishing the technological strategy by the telecommunication and banking organizations.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.3
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• pp.493-499
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• 2015

In Korea mobile phone subscribers exceeded 1 million people in 1995, and ten million people in 1998. Prevalence of the mobile phone increased dramatically over 110% compared to the population. Almost every family members including children uses more than one mobile terminal. Mobile phone is obviously more necessary good than washer, vacuum cleaner and passenger car. Our daily life are conveniently positioned with mobile communication, but communication related costs including the price of the device and service charges become a big burden on the household. But the government does not seem to do the right role at the right time to prevent the market failure to maximize consumer welfare and social welfare through supporting fair competition. This principal-agent problem issues of mobile communication policies will be understood in perspective of public choice against joint use of the mobile communication network, number portability, separation of phone distribution and phone service, network neutrality, mobile phone subsidy since the early 1990s when mobile phone service was introduced in Korea.

• Journal of Korea Society of Digital Industry and Information Management
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• v.6 no.1
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• pp.159-167
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• 2010

We research a competitive advantage of telecom bundling package of three mobile telecom company by figuring out utility that consumers perceived and focused on mobile telecom and high speed internet in one bundled package. As a method, conjoint analysis was applied. And in conclusion, consumers considered retaining mobile telecom company as the most important factor to them and branding as the following important one when one bundled package of telecom service is provided in total market. When the market is divided into two submarkets and the second largest submarket is analyzed personal bundled package was most important and three year agreement with a stipulated discount has the highest utility. As a result of this analysis, mobile telecom company managers need to organize bundled package after consideration of their current position and brand power in the market, and then devise proper market strategy