Electronics and Telecommunications Research Institute

The Industry & Academic Cooperation in Chungnam National University

Gyung-chul Shin

Hyun-Seo Park

Sook-Yang Kang

Kyung-Sook Kim

Pyeong Jung Song

Yeon Seung Shin

Young-Jick Bahg

Je-Hun Rhee

Jung-Sook Bae

Jae Seung Lee

Young-Hoon Kim

Dae-Sik Kim

Hyun Seo Park

Yeong Jin Kim

Ik Jae Chun

Moon-Sik Lee

Jeeyon Choi

Kyung Sook Kim

Hoo Sung Lee

Jaewoo Park

JaeSheung Shin

SoonGi Park

Dong-Hee Kim

Mahn-Hoon Lee

Yong-Ik Yoon

Won-Don Lee

Kim Kyung-Sook

A method and apparatus for transmitting data. Data to be transmitted is an aggregated frame including a first subframe and a second subframe each including information used to verify integrity of each subframe, and an apparatus receiving the data verifies integrity of a subframe based on the information used to verify the integrity.

Method and apparatus for transmitting data

A cell search method for a terminal capable of cell search control includes: receiving a message including first cell search information from a macro cell base station that manages a macro cell; updating second cell search information stored in the terminal based on the first cell search information; and searching for an accessible cell based on the updated second cell search information.

Terminal and method for controlling cell searching thereof

When transmitting a user message, in a call setting period of a base station and a terminal and a radio connection state between a base station and a terminal, whenever a data transmittable channel resource is available, user messages of an amount corresponding to the available channel resource are transmitted. Therefore, user messages can be divided and transmitted according to an available channel in a call setting period.

Method of transmitting user message, terminal and base station using the method

The present invention relates to a method for establishing a connection between heterogeneous user-networks and a domain name system proxy server for controlling the same. The present invention has features of providing a method for supporting communication between user-computers included in Internet-compatible heterogeneous networks through a gateway based on an Internet public network and a domain name system proxy server for controlling the method. According to the present invention, supporting mutual communication between various networks based on one network can be expected.

Method for establishing connection between user-network of other technology and domain name system proxy server for controlling the same

A method for supporting session mobility, more particularly, a method for supporting session mobility that can move various sessions between two or more devices by using session initiation protocol (SIP). Various sessions can be simultaneously moved by utilizing a SIP PUBLISH message. Accordingly, a user can utilize various services as they are regardless of changing of service receiving device while the user utilizes various services. Also, the session mobility can be effectively supported whether the target of the session movement is known or not.

Method for supporting session mobility

A local mobility management apparatus for total mobility management, and a total mobility management method and system are provided. A local domain mobility registration request message on a terminal is received from a mobile access gateway that receives a network attach message including information on a home agent from the terminal moving from a first local domain to a second local domain, a location of the terminal in an area managed by the mobile access gateway is registered, and a global domain mobility registration request message for reporting registration of the location to the home agent is transmitted. Accordingly, it is possible to remove a side effect generated in a case where a transmission order of a local domain mobility registration request message and a global domain mobility registration request message is disordered and provide an efficient mobility management.

Local mobility management apparatus for total mobility management, and total management method and system

The present invention relates to a method for generating a decision tree using an inference engine in a ubiquitous environment. In the method, a data table for a data event set is generated based on information collected by at least one sensor. Subsequently, a weight value of the data event set is established, and an entropy is calculated based on the established weight value (here, the entropy is a scale for classifying the information collected by the sensor into respective classes). In addition, the decision tree for the collected information is formed based on the calculated entropy.

Method for making decision tree using context inference engine in ubiquitous environment

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Daejeon, South Korea

Gyung-chul Shin