Samsung Electronics Co., Ltd.

Sungkyunkwan University

Jong-Sun Pyo

Jin-Won Kim

Hyun-su Hong

Hyun-Su Hong

Woo-Yong Chang

Ji-Youn Jeon

Moon-Pil Hyun

Eun-Seok Lee

Chin-Kyu Kang

Se-Jun Park

Min-Jeong Moon

Young-Rae You

Je-Hwan Oh

Se-Ra Jang

Hyun-Sang Youn

Gil-Jong Yoo

Seung-Dong Yu

A system and method for detecting a location of a mobile communication terminal. A mobile communication network for communication with the terminal and a cell identifier (ID) of a base station is set. A public land mobile network (PLMN) ID of the network and the cell ID are stored. One or more networks other than the set network are searched for. When the one or more other networks are searched for, the searched one or more other networks are sequentially set. Cell information according to the one or more other networks is searched for. Cell IDs of base stations communicable with the terminal are set. PLMN IDs of the one or more other networks and the cell IDs are stored. A common area between cells set using the stored PLMN and cell IDs is determined. Information about the common area is detected as location information of the terminal.

Method and system for detecting a location of a mobile communication terminal

A method and apparatus for providing a traffic information service using a mobile communication terminal are provided. A method of a mobile communication terminal for a traffic information service is provided. The method includes constructing a cluster with at least one neighboring Mobile Station (MS), receiving traffic information from the at least one neighboring MS comprised in the cluster, measuring traffic information using location information of the MS, and transmitting a traffic information message comprising the collected traffic information to a traffic information provision server.

Method and apparatus for providing traffic information service using a mobile communication system

A positioning system using a mobile Internet signal is disclosed. The positioning system includes access points for transmitting downlink signals for mobile Internet communications, an access terminal for generating positioning information using the downlink signals received from the access points and access point information on the access points, and a position determination entity (PDE) for calculating range values between the access terminal and the access points using the positioning information from the access terminal and determining a position of the access terminal using the range values. Since the positioning system determines the position using the mobile Internet signal, an accurate terminal position can be determined even in such environments as downtown, shaded and indoor areas.

Positioning system and method using mobile Internet signal

Disclosed is a method for determining an existence of a repeater using a portable Internet signal and for measuring a position of a mobile station using the same, the method receiving a portable Internet signal and a mobile communication signal from a base station, calculating distances between a mobile station and the base station according to the received portable Internet signal and the received mobile communication signal, and determining the existence of the repeater by comparing the calculated distances with each other. Receiving a mobile communication signal and the portable Internet signal, calculating distance values between the mobile station and a base station according to the received mobile communication signal and the received portable Internet signal, determining a distance value to be used for measurement of the position of the mobile station among the calculated distance values according to existence of errors in the portable Internet signal and the mobile communication signal, and measuring the position of the mobile station using the determined distance values.

Method for determining existence of repeater using portable internet signal and method for measuring position of mobile station using the same

Disclosed is a method for determining the location of a terminal in an AGPS system in a wireless LAN using AGPS data provided from a PDE (position determination entity) and time information provided from a NTP (network time protocol) server.

AGPS system using NTP server and method for determining the location of a terminal using a NTP server

Growing community of inventors

Suwon-si, South Korea

Jong-Sun Pyo