Samsung Electronics Co., Ltd.

Rutgers, the State University of New Jersey

Industry-University Cooperation Foundation Sogang University

Nokia Technologies Oy

Sang-hyuck Ha

Min-goo Kim

Dong-seek Park

Jin-woo Heo

Sang-min Bae

Young-kwon Cho

Chan-byoung Chae

Marcos Daniel Katz

Hong-sil Jeong

Young-Kwon Cho

Chang-Ho Suh

Eun-Taek Lim

Jung-Min Ro

Ho-Kyu Choi

Chan-Byoung Chae

Do-Young Kim

Jaehyuk Jang

Young-Bin Chang

Su-Ryong Jeong

Eun-Tae Won

Jae-Seung Son

Tae-Han Bae

Seok-Hyun Yoon

Sung-Kwon Hong

Sun-Gi Gu

Jin-Kyu Koo

Seok-hyun Yoon

Joon-Young Choi

Jung-Soo Woo

Petar Popovski

Hwan-Joon Kwon

Sang-Min Bae

Hyun-Seok Oh

Chul-Jin Kim

Young-Kyun Kim

Katz Marcos Daniel

Hyung-Chul Son

Bong-No Yoon

Hong-Sil Jeong

Youn-Sun Kim

Kathiravetpillai Sivanesan

Jae-Sung Jang

Dong-Seek Park

Jin-Woo Heo

Elisabeth De Carvalho

Hiroyuki Yomo

Woo-Sang Hong

Chang-Hun Bae

Seung-Hoon Park

Seung-Hoon Choi

Tae-Young Kim

Pan-Yuh Joo

Hyeon-Woo Lee

Byoung-Yun Kim

Jun-Young Jung

Frank Hanns Paul Fitzek

Ramjee Prasad

Ragnar Viôir Reynisson

Jae-Yoel Kim

Min-Goo Kim

Jae-Weon Cho

Sung-jin Kim

Hyun-Woo Lee

Chang-Yoon Oh

Sang-Hyuck Ha

Chan-Soo Hwang

Chung-Gu Kang

Dipankar Raychaudhuri

Geun-Ho Lee

Seong-Ill Park

Jong-Yoon Hwang

Il-Whan Kim

Seok Hyun Yoon

Ju-ho Lee

Clint F Chaplin

Deok-Ki Kim

Jae-Hyuk Jang

Hyeon Woo Lee

Muhammad Imadur Rahman

Simone Frattasi

Leonid Razoumov

Mikael Bergholz Knudsen

Gert Frølund Pedersen

Hwa-Joong Kim

Patrick Claus Friedrich Eggers

Carl Simon Wijting

Jeroen Theeuwes

Chu-Hyon Yi

Sun-Gi Ku

Huan Cong Nguyen

Elisabeth De Carbalho

Megumi Kaneko

A method of avoiding screen off during an Automatic Response System (ARS) service is provided. The method includes enabling a proximity sensor in a call connection, detecting one of a first gesture and a second gesture during a call, and upon detecting the first gesture, disabling the proximity sensor.

Method and apparatus for preventing screen off during automatic response system service in electronic device

A method and device for determining an output of a visible frame in at Visible Light Communication (VLC) device are provided. A first VLC device determines whether to permit a second VLC device to generate visible frames, and transmits, to the second VLC device, visible frame information indicating whether the second VLC device is permitted to generate the visible frames.

Method and device for determining output of visible frame in visible light communication system

A method and apparatus for supporting mobility of a mobile terminal in a Visible Light Communication (VLC) system. The method includes activating only necessary light sources for VLC considering the mobility of the mobile terminal, instead of using total light sources for VLC. Consequently, power consumption can be significantly reduced.

Apparatus and method for supporting mobility of a mobile terminal that performs visible light communication

A method and apparatus for supporting mobility of a mobile terminal in a Visible Light Communication (VLC) system. The method includes searching, by the VLC device, for a first mobile terminal in a plurality of cells; locating the first mobile terminal in a first cell among the plurality of cells; exchanging data with the first mobile using a light source of the first cell; determining whether a response signal corresponding to data reception is received from the first mobile terminal in the first cell; searching for the first mobile terminal in a neighboring cell of the first cell, if the response signal is not received; and determining the neighboring cell as a second cell for visible light activation, if the first mobile terminal is located in the neighboring cell.

A method is provided for performing handoff in a communication system including a serving base station (BS) in communication with a mobile station (MS), at least one neighbor BS using a communication scheme different from a communication scheme of the serving BS, and the MS capable of communicating with the neighbor BS. The method includes compensating a signal strength of one of the serving BS and the neighbor BS, received at the MS, such that handoff decision is possible, and determining whether to perform a handoff of the MS, using the compensated signal strengths.

Apparatus and method for performing handoff in a communication system

A visible light communication method and terminal are provided for communicating with a visible light coordinator which discriminates between at least one communication area cell that includes at least one light source and a boundary area positioned between the communication area cell and another communication area cell adjacent to the communication cell area, and which provides time division visible light communication. Data of the visible light communication terminal is received from the visible light coordinator using a first time slot in a first communication area cell determined according to a position of the visible light communication terminal. The visible light coordinator is communicated with using a second time slot assigned from the visible light coordinator, when the visible light communication terminal is located in a boundary area of the first communication area cell. The second time slot has not been assigned to the visible light communication terminal.

Visible light communication method and apparatus

A method and an apparatus are provided for guaranteeing terminal mobility in a time division visible light communication system. In resource assignment in a position where the visible light communication terminal changes a cell, the terminal is assigned a resource to be used in a next cell in a cell boundary area from a communication coordinator, thereby guaranteeing the continuous mobility. The visible light communication system informs the terminal of cell boundary notice information for easily informing the terminal of the cell definition so that the terminal can recognize that the terminal is currently located in the cell boundary and is necessary to change the resource.

Provided are an apparatus and a method for providing a concurrent data service to an Mobile Station (MS) through a plurality of heterogeneous networks. In a method for providing a data service to an MS through different wireless networks, the MS measures channel qualities of at least one accessible wireless network and reports the measured channel qualities to an Internet Protocol (IP) packet controller. The IP packet controller selects wireless networks for data transmission on the basis of the reported channel qualities, distributes data destined for the MS, and transmits the distributed data to the selected wireless networks. The selected wireless networks receive the data from the IP packet controller and transmits the received data to the MS. The MS combines and interprets the data received from the selected wireless networks. Accordingly, it is possible to provide a seamless data service to the MS in service environments with a mixture of different wireless communication systems.

Data service apparatus and method in heterogeneous wireless networks

A system and method for transmitting and receiving a signal in a communication system using a relay scheme. A base station receives a first signal in a first time interval from a first mobile station which is at least one mobile station located in a third region which is a region where a first region which is a region of the base station itself overlaps with a second region which is a region of a relay station. The relay station receives a second signal in the first time interval from a second mobile station which is at least one mobile station located in a fourth region which is a region not overlapping with the first region in the second region, and receives the first signal from the first mobile station. The relay station transmits a third signal including the first signal and the second signal to the base station in a second time interval. The base station receives the third signal in the second time interval, and cancels the first signal from the third signal to detect the second signal.

System and method for transmitting and receiving signals in a communication system using relay scheme

A ranging apparatus in a communication system is provided. A terminal generates a ranging code for ranging with a base station, maps the ranging code to at least one sub-carrier so the ranging code is repeated in a time domain, generates a ranging signal so the mapped ranging code has a size of one symbol interval, and transmits the generated ranging signal to the base station. The base station receives a ranging signal, extracts a half signal of a valid symbol interval of the ranging signal, generates a valid symbol interval signal by repeating the extracted half signal of the valid symbol interval, restores a ranging signal using the valid symbol interval signal, and performs ranging using the ranging signal.

Apparatus and method for performing ranging in a communication system

An apparatus and method for reducing MAP channel overhead in a broadband wireless communication system. In a Base Station (BS), a traffic classifier classifies transmission data into a first group and a second group according to user channel information and packet sizes of the transmission data. A MAP channel configure configures a MAP channel to include information about users of the first group and positions of data for the users, information indicating whether users of the second group have succeeded in random access in a second uplink data region of a previous frame, and information about resource reservation for a current frame for the second group. A channel mapper maps the first group to a first downlink data region and maps the second group to a second downlink data region according to the MAP channel.

Apparatus and method for reducing map channel overhead in a broadband wireless communication system

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Suwon-si, South Korea

Young-Kwon Cho