公开(公告)号：WO2009022818A2

公开(公告)日：2009-02-19

申请号：PCT/KR2008004616

申请日：2008-08-08

Applicant: KOREA ELECTRONICS TELECOMM ,  LEE WOO YONG ,  KIM KYEONGPYO ,  KIM JIN KYEONG ,  KIM YONG SUN ,  KWON HYOUNG JIN

Inventor： LEE WOO YONG ,  KIM KYEONGPYO ,  KIM JIN KYEONG ,  KIM YONG SUN ,  KWON HYOUNG JIN

IPC: H04B7/02

CPC classification number: H04B7/061

Abstract: An adaptive modulation apparatus and method using a multiple antenna selection scheme are provided. The adaptive modulation method using the multiple antenna scheme includes: selecting one transmit antenna from a plurality of transmit antennas; determining a target transmission rate of the selected transmit antenna to transmit the determined target transmission rate to a multiple antenna reception apparatus; receiving, from the multiple antenna reception apparatus, feedback information including information regarding whether to accept the target transmission rate; and transmitting data to the multiple antenna reception apparatus using the received feedback information.

Abstract translation: 提供了一种使用多天线选择方案的自适应调制装置和方法。 使用多天线方案的自适应调制方法包括：从多个发射天线中选择一个发射天线; 确定所选择的发射天线的目标传输速率，以将所确定的目标传输速率发射到多天线接收装置; 从多个天线接收装置接收包括关于是否接受目标传输速率的信息的反馈信息; 以及使用所接收的反馈信息将数据发送到所述多天线接收装置。

公开(公告)号：EP2849499A4

公开(公告)日：2016-01-13

申请号：EP13787375

申请日：2013-05-08

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE JAE SEUNG ,  CHEONG MIN HO ,  KWON HYOUNG JIN ,  YU HEE JUNG ,  LEE SOK KYU

IPC: H04W48/14 ,  H04W48/16

CPC classification number: H04W48/16 ,  H04L12/12 ,  H04L61/1541 ,  H04L67/16 ,  H04W4/008 ,  H04W8/005 ,  H04W28/065 ,  H04W48/14 ,  H04W84/12 ,  H04W92/20

Abstract: A scanning method performed by a station (STA) in a wireless LAN system is provided. The method comprises: transmitting a probe request frame; and receiving a short probe response frame from an access point (AP) as a response to the probe request frame. The short probe response frame includes service set ID (SSID) information or compressed SSID information of the AP.

公开(公告)号：EP2533468A4

公开(公告)日：2014-03-26

申请号：EP11740048

申请日：2011-02-07

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KWON HYOUNG JIN ,  KIM YONG SUN ,  JIN SUNG GEUN ,  CHANG KAP SEOK ,  HONG SEUNG EUN ,  LEE WOO YONG ,  CHUNG HYUN KYU

IPC: H04L12/28 ,  H04B7/155 ,  H04L5/14 ,  H04W76/04

CPC classification number: H04B7/15557 ,  H04B7/1555 ,  H04L5/14 ,  H04L45/22 ,  H04W24/00 ,  H04W24/08 ,  H04W72/02 ,  H04W84/047

Abstract: A communication method of a source device according to am embodiment includes detecting a status of a first link directly connected from the source device to a destination device or a status of a second link connected from the source device to the destination device via a relay device, selecting any one of the first link and the second link based on a result of the detection, and transmitting data using the selected link.

公开(公告)号：EP2538581A4

公开(公告)日：2013-09-04

申请号：EP11744876

申请日：2011-02-16

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： CHANG KAP SEOK ,  KWON HYOUNG JIN ,  KIM YONG SUN ,  HONG SEUNG EUN ,  JIN SUNG GEUN ,  LEE WOO YONG ,  CHUNG HYUN KYU

IPC: H04B7/14 ,  H04W40/22

CPC classification number: H04B7/15528 ,  H04B7/15592 ,  H04B7/2606 ,  H04W40/22 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/39 ,  Y02D70/446 ,  Y02D70/449

Abstract: The present invention provides a wireless communication method used for transmitting and receiving a relay in a wireless local area network system. The wireless local area network system according to an embodiment of the present invention relates to a wireless communication method of setting a relay link through a relay and setting a transmission time point at which a data frame is transmitted in a source device by recognizing a propagation delay between devices, and the like when an operation mode of the set relay corresponds to a cooperating mode.

公开(公告)号：EP2894927A4

公开(公告)日：2016-04-20

申请号：EP13834766

申请日：2013-09-04

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： CHEONG MIN HO ,  KWON HYOUNG JIN ,  LEE JAE SEUNG ,  PARK JAE WOO ,  LEE SOK KYU

IPC: H04W74/08 ,  H04B7/06 ,  H04W16/28 ,  H04W48/16 ,  H04W84/12

CPC classification number: H04W74/04 ,  H04B7/0408 ,  H04B7/0617 ,  H04W16/28 ,  H04W48/16 ,  H04W74/08 ,  H04W84/12

Abstract: A channel access method and apparatus are disclosed. The channel access method by an access point (AP) having a sector antenna in a wireless local access network (WLAN), may include transmitting a sector beacon with respect to any one sector among a plurality of sectors, transmitting and receiving data with at least one station in any one sector during a pre-scheduled sector interval, sequentially performing transmission of the sector beacon and transmission and reception of the data with respect to remaining sectors of the plurality of sectors excluding the any one sector, transmitting an omni beacon with respect to all of the plurality of sectors, and transmitting and receiving data with respect to at least one station of the plurality of sectors during a pre-scheduled Basic Service Set (BSS) interval.

公开(公告)号：EP2739043A4

公开(公告)日：2015-03-18

申请号：EP12819673

申请日：2012-07-27

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KYUNG HEE UNIV IND COOP GROUP

Inventor： YIM HYUN JEONG ,  YUN KUG JIN ,  LEE GWANG SOON ,  KWON HYOUNG JIN ,  JUNG KWANG HEE ,  CHEONG WON SIK ,  HUR NAM HO ,  KIM KYU HEON ,  LEE JANG WON ,  KANG JEON HO ,  PARK JONG HWAN ,  PARK GWANG HOON ,  SEO DUK YOUNG

IPC: H04N7/08 ,  H04N7/173 ,  H04N21/235 ,  H04N21/236

CPC classification number: H04N13/0059 ,  H04H20/18 ,  H04H20/40 ,  H04N13/0048 ,  H04N19/597 ,  H04N21/2353 ,  H04N21/236 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/4307 ,  H04N21/4325 ,  H04N21/4344 ,  H04N21/4622 ,  H04N21/6125 ,  H04N21/6543 ,  H04N21/816

Abstract: According to the present invention, a transmission apparatus and method and a reception method and apparatus for providing a 3D service are disclosed. The transmission method for providing the 3D service while making a reference image transmitted in real-time interwork with an additional image transmitted separately from the reference image includes a real-time reference image stream generating step of generating a real-time reference image stream based on the reference image and transmitting the generated real-time reference image stream to a receiving side in real-time and an additional image transmitting step of transmitting the additional image providing the 3D service in interworking with the reference image to the receiving side separately from the reference image stream, wherein the real-time reference image stream includes a linkage information, which is information relating to the additional image to be interworking with the reference image and synchronization information for synchronization with the reference image and the additional image and content.

公开(公告)号：EP2538580A4

公开(公告)日：2014-03-26

申请号：EP11744874

申请日：2011-02-16

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： CHANG KAP SEOK ,  KWON HYOUNG JIN ,  JIN SUNG GEUN ,  KIM YONG SUN ,  HONG SEUNG EUN ,  LEE WOO YONG ,  CHUNG HYUN KYU

IPC: H04B7/14 ,  H04W72/08 ,  H04W74/04

CPC classification number: H04B7/15592 ,  H04B7/155 ,  H04W24/08 ,  H04W72/085 ,  H04W72/1205 ,  H04W74/04 ,  H04W84/047

Abstract: Provided is an apparatus and method for wideband short-range wireless communication using a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a first time interval and a second time interval for a cooperated data frame transfer based on a packet transmission time at each transmission from a source node to a destination node, transmit a frame to a relay node through an antenna pattern directed towards the relay node at a start point of the first time interval, and transmit the frame to the destination node through an antenna pattern directed towards the destination node after a predetermined period of time from a start point of the second time interval.

公开(公告)号：EP2469737A4

公开(公告)日：2016-10-19

申请号：EP10810212

申请日：2010-08-20

Applicant: KOREA ELECTRONICS TELECOMM ,  CHUNG HYUN KYU

Inventor： CHUNG HYUN KYU ,  JIN SUNG-GEUN ,  CHANG KAPSEOK ,  KWON HYOUNG JIN ,  LEE WOO YONG

IPC: H04W72/12

CPC classification number: H04W56/0065 ,  H04L65/4076 ,  H04W4/008 ,  H04W56/0075 ,  H04W72/0446 ,  H04W74/00 ,  H04W84/12 ,  H04W88/02

Abstract: Disclosed is a method for adjusting a transmission time point of at least one second terminal in a wireless network by a first terminal. In the method for adjusting a transmission time point of a terminal, a transmission time point of the second terminal is set, a first frame including information regarding the transmission time point is transmitted to the second terminal, a first response frame transmitted according to the transmission time point from the second terminal is received, and the transmission time point is adjusted according to an arrival time of the first response frame.

公开(公告)号：EP2690876A4

公开(公告)日：2014-10-15

申请号：EP12760647

申请日：2012-03-22

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KWON HYOUNG JIN ,  YUN KUG JIN ,  LEE GWANG SOON ,  CHEONG WON SIK ,  HUR NAM HO

IPC: H04N21/235 ,  H04H20/18 ,  H04H20/33 ,  H04H20/93 ,  H04L29/06 ,  H04N21/462 ,  H04N21/63

CPC classification number: H04L65/602 ,  H04H20/18 ,  H04H20/93 ,  H04L65/4076 ,  H04N21/4345 ,  H04N21/4622 ,  H04N21/6125 ,  H04N21/64322 ,  H04N21/8586

Abstract: Provided are an apparatus and method of transmitting and receiving associated broadcasting contents based on a heterogeneous network. The transmission system generates a basic contents stream for basic contents configuring the broadcasting contents to transmit the basic contents stream to a terminal through a broadcasting network, generates an additional contents stream for additional contents associated with the basic contents to transmit the additional contents stream to the terminal through a communication network, and further transmits at least one of associated playing information on the basic contents and associated playing information on the additional contents to the terminal, and the reception terminal receives the basic contents stream, the additional contents stream, and the associated playing information and synchronize the basic contents and the additional contents with each other to play them, thereby playing the broadcasting contents in real time.

公开(公告)号：EP2685728A4

公开(公告)日：2014-09-17

申请号：EP12754829

申请日：2012-03-09

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： JUNG KWANGHEE ,  YIM HYUN JEONG ,  YUN KUG JIN ,  LEE GWANG SOON ,  KWON HYOUNG JIN ,  CHEONG WON SIK ,  HUR NAM HO

IPC: H04N13/00 ,  H04N21/2362 ,  H04N21/43 ,  H04N21/434 ,  H04N21/462 ,  H04N21/63 ,  H04N21/81 ,  H04N21/8547

CPC classification number: H04N13/0051 ,  H04N13/0059 ,  H04N13/0066 ,  H04N21/2362 ,  H04N21/242 ,  H04N21/4307 ,  H04N21/4345 ,  H04N21/4622 ,  H04N21/631 ,  H04N21/816 ,  H04N21/8547

Abstract: Provided are a method and apparatus of synchronizing a reference picture and an additional picture of a real-time broadcasting program. The method includes: receiving an MPEG-2 transport stream (MPEG-2 TS) including a program level descriptor and an elementary stream (ES) level descriptor from a picture transmitting apparatus; loading an additional picture corresponding to a reference picture included in the elementary stream (ES) level descriptor from a memory provided in the picture receiving apparatus, based on file information regarding the reference picture; calculating a time difference between a current frame of the reference picture and a reference time stamp, based on the reference time stamp which is included in the program level descriptor and indicates a start time of a frame regarding the reference picture; synchronizing the frame regarding the reference picture and a frame regarding the additional picture by using the time difference; and providing a stereoscopic picture based on the synchronized frames regarding the reference picture and the additional picture. A stereoscopic video service can be stably provided.