Samsung Electronics Co., Ltd.

Postech Academy-industry Foundation

Korea Advanced Institute of Science and Technology

Eung Sun Kim

Young-Doo Kim

Yong Sam Kim

Ui Kun Kwon

Young Soo Kim

Tae Rim Park

Ji Hyun Yoon

Hyun Gi Ahn

Seong Eun Kim

Chang Wook Ahn

Tae Soo Kwon

Do Hyung Park

Chan Soo Hwang

Gi Hong Im

Jung Ho Kim

Kyle Kim

Yong Sung Roh

Jae Hong Kim

Yong Kim

Chang Yong Shin

Ji Hoon Lee

Sung Won Lee

Hyun Cheol Park

Young Gon Choi

Jin Sae Jung

Jong Bu Lim

Ki Ho Kim

Namyoon Lee

Yoon Chae Cheong

Duck Dong Hwang

Tae-Won Yune

Dohyung Park

Hae Lyong Kim

Lee M Garth

Yong Hoon Lee

Heejung Yu

Sae-Young Chung

Jong-Bu Lim

Gi-Hong Im

Seung Hoon Nam

Won-Yong Shin

Dong Sik Kim

Sung Cheol Kim

Chan Ho Choi

Dae-Young Seol

Gi Hong Lim

Chan-Ho Choi

Abdulla Firag

A method of estimating a location of a terminal includes measuring a magnetic field value at a location of the terminal, estimating the location of the terminal using the measured magnetic field value, and transmitting the measured magnetic field value and information associated with the estimated location to a server. A method of modifying a magnetic field map includes receiving, from a terminal, a magnetic field value estimated at a location of the terminal, and information associated with a location of the terminal estimated based on the magnetic field value, and modifying a magnetic field map using the measured magnetic field value and the information associated with the estimated location.

Terminal and server for modifying magnetic field and method thereof

A method of estimating a location of a user terminal is provided. It is based on a difference between a true north and a magnetic north that may estimate a location of a user terminal on a magnetic field map based on a difference between a true north and a magnetic north corresponding to each location of the magnetic field map, and the user terminal thereof.

Method for estimating location of user terminal using difference between true north and magnetic north and the user terminal thereof

Provided is a communication system using a space division multi-user multiple input multiple output (SD-MIMO) communication method. A transmission apparatus may transmit, to each of terminals included within a coverage, common control information commonly transmitted to the terminals and individual control information individually transmitted to each of the terminals. The transmission apparatus does not precode the common control information and transmits the non-precoded common control information. The transmission apparatus precodes the individual control information and transmits the precoded individual control information.

Communication system and method using space division multi-user multiple input multiple output (SD-MIMO) communication method

Provided are a method and an apparatus for creating a magnetic field map that extracts magnetic field information of a building from floor plan information of the building. The magnetic field map of the building may be generated based on the floor plan information and the magnetic field information.

Method and apparatus for creating magnetic field map based on floor plan information of building

Provided is an apparatus and method associated with a location based service, and an apparatus for integrated positioning that may sense positioning-associated information that is in proximity to a user. The apparatus may hierarchically classify the sensed positioning-associated information into multiple categories of accuracy based on a predetermined criterion, and estimate the location of the user in order of low accuracy information to more precise accuracy information.

Apparatus and method for integrated positioning

Provided is an apparatus and method for expressing an accuracy of a measured location of a terminal. The apparatus may include a storage unit to store accuracy information used for indicating an accuracy of a measured location corresponding to each of possible locations of the terminal. The apparatus may include a location information obtainment unit to obtain information associated with a location of the terminal. The apparatus may include a controller to express an accuracy of a measured location in the location of the terminal or an accuracy of a measured location in an area comprising the location of the terminal, based on the accuracy information.

Method and apparatus for expressing the accuracy of a measured location of a terminal

A method of setting an initial location of a user terminal via an interaction with a user and a user terminal is provided. The method includes measuring a magnetic field at a current location of the user terminal, and estimating a candidate initial location of the user terminal based on the magnetic field. The method further includes displaying the candidate initial location, and selecting the candidate initial location. The method further includes setting the initial location based on the selection.

Method of setting initial location of user terminal via interaction with user and user terminal

A mobile terminal device for a positioning system based on a magnetic field map and a method thereof, are provided. The mobile terminal includes a memory configured to store a magnetic field map including magnetic field values at positions. The mobile terminal further includes a magnetic field sensor configured to measure a magnetic field value at a position of the mobile terminal. The mobile terminal further includes an inertial measurement unit (IMU) sensor configured to measure an acceleration value and a gyro value of the mobile terminal. The mobile terminal further includes a processor configured to determine the position of the mobile terminal based on the magnetic field map, the magnetic field value, the acceleration value, and the gyro value.

Mobile terminal device for positioning system based on magnetic field map and method thereof

A method of obtaining a location of a user includes obtaining first location information of the user; searching a pre-stored first map for a plurality of candidate areas corresponding to the first location information; selecting at least one search area from the plurality of candidate areas corresponding to the first location information based on second location information of the user; and determining the location of the user using at least one search area.

Method and apparatus for obtaining location of user

A mobile device includes a magnetic field sensor configured to measure a magnetic field value at a location of the mobile device, and a memory configured to store first magnetic field maps corresponding to a number N of respective heights. The mobile device includes a magnetic field map deriving unit configured to derive second magnetic field maps corresponding to a number M of respective heights based on the first magnetic field maps, the number M being greater than the number N, and a location determining unit configured to determine the location of the mobile device based on the magnetic field value and the second magnetic field maps.

Mobile device for estimating location using particle filter generated based on three-dimensional (3D) magnetic field map and method using said mobile device

Provided are a method and apparatus for measuring a location of a terminal using a magnetic field. For example, the apparatus may measure a location of a terminal using a magnetic field obtained by a magnetic field sensor and one or more sensor values obtained by a plurality of other sensors.

Method and apparatus for measuring a location of a terminal using magnetic field

Provided is a data transmission system of providing preambles of different classes according to a characteristic of a terminal. A terminal having constraints on using a power with respect to a data reception may receive only a preamble of a particular class and thus decrease a power consumption. A general terminal may receive preambles of plural classes and quickly receive data.

Apparatuses and methods for data transmission and reception

Growing community of inventors

Suwon-si, South Korea

Eung Sun Kim