Donsung Oh

Research activities on next-generation mobile communications and services in Korea

In this article we present a perspective on next-generation mobile communications and services. As a preliminary research work on next-generation mobile communications, we exploit what next-generation mobile services will be (S. Ryu et al., May 2003). We define next-generation mobile services as a hierarchy of services consisting of three different service levels: the service areas, the service functionalities, and the service technologies. We derive these service levels by means of scenario-based analysis. Next we propose conceptual reference network architecture, focusing on the realization of the service technologies. We divide the network into four different parts: a user equipments and access part, a network service provisioning layer part, a network control layer part, and non-mobile network operator service pan, according to characteristics of information and service flows within a network. In this reference network architecture, service elements such as servers, processors, and gateways are placed in each network part to support the derived next-generation mobile services. Finally, we give a brief introduction of research and development activities for next-generation mobile communication systems and services in Korea.

Scenario Decomposition based Analysis of Next Generation Mobile Services

The next-generation mobile communication, the so called fourth generation, is a system capable to provide a variety of multimedia services such as multimedia moving pictures, movies, and television broadcasts with high-speed and high quality via the converged network of wireless and wired infrastructures. However, the next generation mobile services have not been studied actively yet because there is no clear definition what the next generation mobile communication and its services will be. In this paper, we exploit a perspective of the next generation mobile communication services and its characteristics. We then propose a service analysis framework for eliciting key service functionalities and core technologies when various future mobile service scenarios are given. The proposed analysis framework, called scenario based service analysis process (2SAP), consists of 4 sequential analysis steps, a scenario transformation, a scenario decomposition, an analysis of functions for each situation, and an elicitation of service functionalities.

Scenario decomposition based analysis of next generation mobile services

The next-generation mobile communication, the so called fourth generation, is a system capable to provide a variety of multimedia services such as multimedia moving pictures, movies, and television broadcasts with high-speed and high quality via the converged network of wireless and wired infrastructures. However, the next generation mobile services have not been studied actively yet because there is no clear definition what the next generation mobile communication and its services will be. In this paper, we exploit a perspective of the next generation mobile communication services and its characteristics. We then propose a service analysis framework for eliciting key service functionalities and core technologies when various future mobile service scenarios are given. The proposed analysis framework, called scenario based service analysis process (2SAP), consists of 4 sequential analysis steps, a scenario transformation, a scenario decomposition, an analysis of functions for each situation, and an elicitation of service functionalities

Analysis of Next Generation Mobile Services Based on Scenario Decomposition

In this paper, we propose a service analysis framework for eliciting key service functionalities and core technologies when various future mobile service scenarios are given. The proposed analysis framework, called scenario based service analysis process (2SAP), consists of 4 sequential analysis steps, a scenario transformation, a scenario decomposition, an analysis of functions for each situation, and an elicitation of service functionalities. We then propose business model creation methodology consisting of four consecutive development processes, service elicitation, elicitation of participants, roles of participants and value distribution using analysis results of 2SAP approach. Finally, we propose three types of next generation mobile business models, direct management model, platform rental model, and brokerage model, based on roles and activities of participants.

Perspective of the next generation mobile communications and services

In this paper, we present a perspective of the next generation mobile communication service and its characteristics. As a preliminary research work on the next generation mobile communications and services, we exploit the next generation mobile services. We define the next generation mobile services as strata of services consisting of three different service levels, the service areas, the service functionalities, and the service technologies. We derive these service levels by means of the scenario based analysis. Finally, we propose a conceptual network architecture that can support the next generation mobile services by placing network functions and service elements within the network.