公开(公告)号：EP1820360A4

公开(公告)日：2011-10-19

申请号：EP05821440

申请日：2005-12-05

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KWON JAE KYUN ,  LEE HEE SOO ,  AHN JAE YOUNG

IPC: H04W72/08

CPC classification number: H04W72/082 ,  H04W8/24 ,  H04W72/02 ,  H04W72/0446 ,  H04W88/08

公开(公告)号：EP2316171A4

公开(公告)日：2014-06-18

申请号：EP09808377

申请日：2009-08-14

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： SEO BANGWON ,  KO YOUNG JO ,  AHN JAE YOUNG

IPC: H04B7/02 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04B7/024 ,  H04B7/0413 ,  H04B7/0426 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0671

公开(公告)号：EP2582074A4

公开(公告)日：2014-04-02

申请号：EP11792670

申请日：2011-06-08

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KO YOUNG JO ,  SEO BANG WON ,  AHN JAE YOUNG

IPC: H04J11/00 ,  H04B7/26 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W72/042 ,  H04L1/0045 ,  H04L1/0061 ,  H04L5/001 ,  H04L5/0053 ,  H04W4/00 ,  H04W72/046 ,  H04W88/02 ,  H04W88/08

Abstract: Provided is a method and apparatus for transmission and reception by configuring control channels in a wireless communication system using a plurality of carriers. A user equipment (UE) may monitor physical downlink control channel (PDCCH) candidates within common search spaces (CSSs) and UserEquipment-specific search spaces (USSs). If the UE is configured with cross-carrier scheduling, when two PDCCH candidates originating from a CSS and a USS, respectively, have cyclic redundancy check (CRC) scrambled by the same Radio Network Temporary Identifier (RNTI) and have a common payload size and the same first control channel element (CCE) index, the UE may interpret that only the PDCCH originating from the CSS is transmitted, thereby solving ambiguity of downlink control information (DCI) detection.

公开(公告)号：EP2320615A4

公开(公告)日：2012-01-04

申请号：EP09771646

申请日：2009-08-19

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： NOH TAEGYUN ,  AHN JAE YOUNG

IPC: H04L27/26 ,  H04L1/18 ,  H04L5/00

CPC classification number: H04L27/2607 ,  H04L1/1893 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0055 ,  H04W28/044 ,  H04W74/085

Abstract: A technology enabling a base station to transmit acknowledgement (ACK)/negative ACK (NACK) information about data received from a terminal is provided. A cyclic shift value difference of each terminal may be maximized and a radio resource for transmitting the ACK/NACK information may be assigned without collision.

公开(公告)号：EP2942881A4

公开(公告)日：2016-10-19

申请号：EP13817469

申请日：2013-07-11

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KO YOUNG JO ,  AHN JAE YOUNG ,  NOH TAE GYUN ,  SEO BANG WON

IPC: H04B7/24 ,  H04W8/00

CPC classification number: H04W8/005 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0082 ,  H04L5/14 ,  H04L43/0864 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453 ,  H04W76/023 ,  H04W84/042 ,  H04W92/18

Abstract: A discovery method for device to device communication between terminals is disclosed. The discovery method for the device to device communication between terminals comprises the steps of: performing transmission in a first sub-frame; transmitting a discovery channel through a preset section in a second sub-frame located next to the first sub-frame; and performing transmission in a third sub-frame next to the second sub-frame. Therefore, the present invention can transmit and receive the discovery channel without colliding with other data.

公开(公告)号：EP2903174A4

公开(公告)日：2016-06-29

申请号：EP13842797

申请日：2013-09-26

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KO YOUNG JO ,  AHN JAE YOUNG

IPC: H04B7/04 ,  H04B7/26 ,  H04L5/00

CPC classification number: H04W72/1231 ,  H04B7/024 ,  H04B7/0626 ,  H04L5/0035 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0094 ,  H04W72/1273 ,  H04W72/1294

Abstract: Disclosed is a method for signaling control information for coordinated multipoint (CoMP) transmission in a wireless communication system. The control information signaling method for CoMP transmission is performed by a base station and comprises providing, through RRC signaling, a terminal with setup information on each CSI-RS resource of a CoMP measurement group which is set in the terminal; and selectively providing, through DCI, the terminal with control information which indicates mapping of the PDSCH resource element corresponding to terminal and at least either pseudo-same positionality information of CSI-RS or pseudo-same positionality information of DM-RS. Thus, control information signaling for coordinated multipoint transmission can be efficiently performed.

公开(公告)号：EP2819313A4

公开(公告)日：2015-12-02

申请号：EP13751342

申请日：2013-02-25

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： NAM JUN YOUNG ,  AHN JAE YOUNG

IPC: H04B7/04 ,  H04B7/06 ,  H04W72/12

CPC classification number: H04B7/0452 ,  H04B7/0456 ,  H04B7/0482 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0634 ,  H04B7/0639 ,  H04L5/0048 ,  H04W72/1226

Abstract: The present invention relates to a multi-input and multi-output communication method in a large-scale antenna system. An MIMO transmission method according to the present invention includes: obtaining statistical channel information on at least one terminal, dividing terminals into a plurality of classes and a plurality of groups based on the statistical channel information, wherein the groups depend on the classes; determining a group beam-forming matrix for each of the divided groups; performing a group beamforming transmission by group based on the group beam-forming matrix to obtain instantaneous channel information; and scheduling terminals based on the instantaneous channel information. Thus, it is possible to decrease the complexity in a scheduling and precoding calculation without an increase in the amount of wireless resources that are required for providing feedback for a reference signal and channel status information.

Abstract translation: 本发明涉及大规模天线系统中的多输入多输出通信方法。 根据本发明的MIMO传输方法包括：在至少一个终端上获取统计信道信息，基于统计信道信息将终端分成多个类和多个组，其中所述组依赖于类; 为每个划分的组确定组波束形成矩阵; 基于组波束形成矩阵进行群组波束成形传输，获得瞬时信道信息; 并基于瞬时信道信息调度终端。 因此，可以降低调度和预编码计算的复杂度，而不增加为参考信号和信道状态信息提供反馈所需的无线资源量的增加。

公开(公告)号：EP2566070A4

公开(公告)日：2014-08-20

申请号：EP11775210

申请日：2011-04-22

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： NOH TAE GYUN ,  AHN JAE YOUNG

IPC: H04B7/26 ,  H04J11/00 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0094 ,  H04W76/046 ,  H04W88/08

Abstract: Provided is a communication system that transmits a control channel using a downlink. The communication system may transmit, to the terminal, transmission information of uplink allocation information that indicates whether uplink allocation information is transmitted using a downlink, and the terminal may determine whether the uplink allocation information is included in a downlink frame, based on the transmission information of uplink allocation information. The base station may transmit, to the terminal, information associated with a resource which has a possibility of being used for transmission of a physical downlink control channel (PDCCH), and the terminal may decode the PDCCH in the resource which has a possibility of being used for transmission of the PDCCH.

公开(公告)号：EP2410671A4

公开(公告)日：2012-08-22

申请号：EP10753717

申请日：2010-03-18

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE HEESOO ,  NOH TAEGYUN ,  AHN JAE YOUNG ,  LEE KYOUNG SEOK ,  KO YOUNG JO

IPC: H04L5/00 ,  H04B7/26

CPC classification number: H04L5/0048 ,  H04B7/2606 ,  H04L5/0091 ,  H04W72/042 ,  H04W84/047

公开(公告)号：EP1820275A4

公开(公告)日：2009-11-25

申请号：EP05821430

申请日：2005-12-07

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE SANG HYUN ,  AHN JAE YOUNG

IPC: H03M13/11

CPC classification number: H03M13/1168 ,  H03M13/116 ,  H03M13/118 ,  H03M13/616 ,  H03M13/6356 ,  H03M13/6516