Korea Advanced Institute of Science and Technology

Samsung Electronics Co., Ltd.

Lg Electronics Inc.

Dong Ho Cho

Tae Soo Kwon

Jung Min Moon

Ju Yong Lee

Dae Hee Park

Hyun Ho Choi

Ho Won Lee

O Hyun Jo

Woo Geun Ahn

Seung-Young Ahn

Woong Sup Lee

Yun Sik Kim

Kyung Hun Jang

Jong Bu Lim

Yong Hoon Lee

Byung Chang Chung

Joung Ho Kim

Gu Ho Jeong

Eun-Jung Kim

Ji-Yun Ryu

Joon Sang Han

Gyeng-Chul Kim

Yang Bae Chun

Mi-Joo Kim

Gye Tae Gil

Chang Yong Shin

Won Jae Shin

Won Jong Noh

Dan Keun Sung

Ohyun Jo

Dong Jo Park

Byoung Hoon Jung

Sang Uk Park

Han Sung Leem

Il-Song Han

Ki Song Lee

Woongsup Lee

Chang Bae Yoon

Sang Min Oh

Sung Jin Park

Sun-Heui Ryoo

Hyo Sun Hwang

Hee Jung Yu

Hyun Gi Ahn

Min Suk Kang

Sung Won Lee

Young Seok Oh

Hyuk Jin Lee

Yong Jin Kwon

Ji Hyun Park

Hyun Suk Lee

Chi Sung Bae

Ji Young Cha

Jungkeun Park

Jung-Ho Kim

Young Chul Sung

Chung Hee Lee

Choon Sup Yoon

Chun Taek Rim

Young Ky Kim

Duk Young Jeon

Han Young Yim

Nam Pyo Suh

Bo Yune Song

Sung Jun Son

Seung Won Choi

Joon Tae Kim

Seong Jeub Jeon

Jae Gue Shin

Gang Minh Lee

Byung O Kong

Min Hoe Kim

Uoo Yeol Yoon

Gu Ho Jung

Dang-Oh Kim

Dong Jin Ji

Ii-Song Han

Seung Won Keum

Young Moo Shin

Dae Gyun Kim

A Distributed control method and a distributed communication system for wireless charging of an electric vehicle in moving are provided. For electric vehicle moving on roads in which segmented power supply lines are buried, wireless charging is provided by controlling the switching of power supply segments in real time using a mobile communication system. A distributed communication system controls such process. Since the switching of the power supply segment is distributed and controlled in real time by using a mobile communication system, continuous and stable wireless charging can be achieved without interruption of charging for an electric vehicle in moving.

Method and communication system for distributed control of dynamic wireless power transfer for electric vehicle

A wireless power transmission device can include a plurality of transmission coil units, in which each of the plurality of transmission coil units includes a plurality of antenna coils arranged on different three-dimensional planes, and the plurality of antenna coils are configured to generate a magnetic field passing through at least one or more of the different three-dimensional planes to transfer transmission power to a wireless power reception device.

Wireless power transmission device

Disclosed is a method of supporting wireless Internet mobility including receiving, by a mobility support server, at least one service condition selected from a service condition group consisting of mobility support target information, network information, service quality information, ubiquitous thing information, communication mode information, and access node terminal information to provide an Internet service to a mobility support target, registering, by the mobility support server, support information for the mobility support target according to the at least one service condition, providing, by the mobility support server, an Internet service for the mobility support target on the basis of the at least one service condition, and supporting, by the mobility support server, mobility for the mobility support target on the basis of the at least one service condition.

Mobility supporting method with wireless internet networks and mobility support server

Provided are an orbital angular momentum (OAM)-based transmitter, receiver, and communication method employing a radial concentric uniform circular array (UCA). The OAM-based communication method includes transmitting, by a transmitter, OAM multimode signals through a UCA-based transmitting antenna and receiving, by a receiver, the OAM multimode signals through a radial concentric UCA structure antenna including a plurality of UCA antennas. The plurality of UCA antennas each have the same number of antenna elements, and antenna elements having the same sequence number in the plurality of UCA antennas are on the same radial line in the radial concentric UCA structure antenna.

Orbital angular momentum-based transmitter, receiver, and communication method

A random access method in a beam division multiple access (BDMA) system including: receiving, by a terminal, a reference signal of at least one beam sector transmitted from an access point (AP) device; estimating, by the terminal, whether the terminal is in a center area of the beam sector provided by the AP device or in the boundary area of the beam sector by using the strength of the reference signal; transmitting, by the terminal, a different preamble to the AP device in accordance with location information of whether the terminal is located in the center area or in the boundary area; and determining, by the AP device, a target beam sector for transmitting information about uplink resources to be used by the terminal, among a plurality of beam sectors on the basis of the received preamble.

Random access method in BDMA system and random access method in pattern/polarized BDMA system

Disclosed are a spatial modulation-based transmitter and communication method employing a lens antenna. The spatial modulation-based transmitter includes a plurality of unit antennas, a modulator configured to perform non-orthogonal multiple access and spatial modulation for an input signal, and a controller configured to determine a target unit antenna which will transmit data in a spatial modulation manner at a current time point among the plurality of unit antennas. Each of the unit antennas includes a plurality of antenna units and a lens structure which shifts a phase of an electromagnetic wave output by at least one of the plurality of antenna units. The lens structure shifts the phase so that the plurality of antenna units may have different radiation patterns.

Spatial modulation-based transmitter and communication method employing lens antenna

Disclosed is a reinforcement learning-based resource allocation method for a wireless backhaul network, which is performed by a resource allocation apparatus. The method includes estimating locations of a plurality of base stations on the basis of channel state information (CSI) measured by the plurality of base stations; and allocating resources of the wireless backhaul network to the plurality of base stations using a reinforcement learning neural network having the locations as an input.

Resource allocation method and apparatus for wireless backhaul network based on reinforcement learning

A coordinated transmission method based on beam division multiple access and an apparatus performing the same are disclosed. The coordinated transmission method in a beam division multiple access environment, which divides a service target region into a plurality of beam sectors through a plurality of antenna arrays having at least one of a pattern characteristic and a polarization characteristic, includes receiving a coordination request from a user terminal located in the service target region and performing any one among a macro diversity operation, a coordinated silence operation, and a coordinated beamforming operation for the user terminal based on an interference level included in the coordination request.

Coordinated transmission method based on beam division multiple access and apparatus performing the same

The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.

Power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in resonant frequency

A massive antenna-based pattern/polarization beam division multiple access method and an apparatus performing the same are provided. The massive antenna-based pattern/polarization beam division multiple access method includes generating a plurality of beam sectors for each antenna array by using a plurality of pattern/polarization antenna arrays and performing MIMO transmission in each of the plurality of beam sectors, wherein the plurality of pattern/polarization antenna arrays each have a different radiation pattern.

Massive antenna-based pattern/polarization beam division, multiple access method, and apparatus performing the same

A method to operate a receiving node is provided. The method includes receiving a first set of reference signals being transmit-beamformed using transmit beam groups in at least one transmitting node with receive-beamforming using receive beam groups. The method also includes transmitting information to select one transmit beam group of the transmit beam groups to one of the at least one transmitting node. The method further includes receiving a second set of the reference signals being transmit-beamformed using transmit beams of the one of the transmit beam groups in the at least one transmitting node with receive-beamforming using receive beams of one of the receive beam groups.

Apparatus and method for determining beam in wireless communication system

A receiving apparatus based on pattern/polarization beam division multiple access (BDMA) including an antenna configured to receive a reference signal related to at least one of patterns and polarizations of a plurality of antennas included in a transmitting apparatus, and configured to transmit channel information, and a controller configured to select a particular antenna group among a plurality of antenna groups that are grouped from the plurality of antennas included in the transmitting apparatus using the reference signal, and configured to generate the channel information corresponding to the particular antenna group.

Method of allocating resources in pattern/polarization beam division multiple access-based transmitting apparatus, method of transmitting channel information by receiving apparatus and receiving apparatus based on pattern/polarization beam division multiple access

Provided is a joint pattern beam sectorization method and apparatuses for performing the same, wherein the joint pattern beam sectorization method including generating, in a service target region, a pattern sector corresponding to an antenna array including antennas having an identical radiation pattern by using the antenna array and generating pattern beam sectors in the pattern sector through a beamforming using the antennas.

Joint pattern beam sectorization method and apparatuses performing the same

Growing community of inventors

Seoul, South Korea

Dong Ho Cho