公开(公告)号：WO2009151296A3

公开(公告)日：2013-02-28

申请号：PCT/KR2009003160

申请日：2009-06-12

Applicant: KOREA ELECTRONICS TELECOMM ,  KIM JAE HEUNG ,  LEE KYOUNG SEOK ,  AHN JAE YOUNG ,  KIM YEONG JIN

Inventor： KIM JAE HEUNG ,  LEE KYOUNG SEOK ,  AHN JAE YOUNG ,  KIM YEONG JIN

IPC: H04W84/04 ,  H04W60/00 ,  H04W74/00

CPC classification number: H04W74/002 ,  H04W60/00 ,  H04W72/1278 ,  H04W74/0833 ,  H04W84/045 ,  H04W88/08

Abstract: A method of managing a terminal and controlling an interference in a small base station is provided. The small base station, including: an access preamble control unit to assign a unique preamble for each terminal registered in the small base station; a transmitting/receiving unit to receive a random access request message from each of the terminals through the unique preamble, to transmit a reply message to each of the terminals, and to receive information about each of the terminals and a Radio Resource Control (RRC) connection request Message from each of the terminals in response to the reply message; and a terminal verification unit to verify whether each of the terminals is a registered terminal using the information about each of the terminals.

Abstract translation: 提供一种管理终端并控制小型基站中的干扰的方法。 小型基站包括：接入前导码控制单元，用于为在小型基站中登记的每个终端分配唯一前导码; 发送/接收单元，用于通过唯一前导码从每个终端接收随机接入请求消息，向每个终端发送应答消息，并且接收关于每个终端的信息和无线资源控制（RRC） 连接请求响应于回复消息的每个终端的消息; 以及终端验证单元，使用关于每个终端的信息来验证每个终端是否是注册终端。

公开(公告)号：WO2010107267A3

公开(公告)日：2010-12-09

申请号：PCT/KR2010001696

申请日：2010-03-18

Applicant: KOREA ELECTRONICS TELECOMM ,  LEE HEESOO ,  NOH TAEGYUN ,  AHN JAE YOUNG ,  LEE KYOUNG SEOK ,  KO YOUNG JO

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

IPC: H04B7/26

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

Abstract: Disclosed is a transmission system for transmitting reference signals with information on the state of a channel for extracting channel state information to a relay and a macro terminal. A base station transmits to the relay or the macro terminal the information on a sub-frame, which includes the channel state information reference signal. The relay and the macro terminal receive the channel state information reference signal using the information on the sub-frame. The relay and the macro terminal extract the channel state information using the channel state information reference signal, and transmit the extracted channel state information to the base station.

Abstract translation: 公开了一种用于发送具有关于向中继站和宏终端提取信道状态信息的信道的状态的信息的参考信号的传输系统。 基站向中继站或宏终端发送包括信道状态信息参考信号的子帧上的信息。 继电器和宏终端使用子帧上的信息接收信道状态信息参考信号。 中继站和宏终端使用信道状态信息参考信号提取信道状态信息，并将提取的信道状态信息发送到基站。

公开(公告)号：WO2010093202A2

公开(公告)日：2010-08-19

申请号：PCT/KR2010000913

申请日：2010-02-12

Applicant: KOREA ELECTRONICS TELECOMM ,  LEE HEESOO ,  AHN JAE YOUNG ,  NOH TAEGYUN

Inventor： LEE HEESOO ,  AHN JAE YOUNG ,  NOH TAEGYUN

IPC: H04W88/04 ,  H04W72/04

CPC classification number: H04B7/15542 ,  H04L5/001 ,  H04W72/044 ,  H04W72/0493 ,  H04W84/047

Abstract: The present invention relates to a communication field, more particularly to a communication system that transmits data using a relay. The invention enables the efficient allocation of wireless resources for transmission and reception links between a base station and a relay, the base station and a terminal, and the relay and the terminal.

Abstract translation: 通信系统技术领域本发明涉及通信领域，更具体地涉及使用中继来发送数据的通信系统。 本发明能够有效地分配无线资源用于基站和中继站之间，基站和终端以及中继站和终端之间的发送和接收链路。

公开(公告)号：WO2010019017A2

公开(公告)日：2010-02-18

申请号：PCT/KR2009004564

申请日：2009-08-14

Applicant: KOREA ELECTRONICS TELECOMM ,  AHN JAE YOUNG ,  KO YOUNG JO ,  LEE HEESOO

Inventor： AHN JAE YOUNG ,  KO YOUNG JO ,  LEE HEESOO

IPC: H04B7/155 ,  H04B17/40

CPC classification number: H04B7/15542 ,  H04B7/15585 ,  H04B17/345 ,  H04L25/0224 ,  H04L27/2601

Abstract: Provided is a self-interference cancellation method and apparatus that may remove self-interference occurring when a transmission signal of a transmit antenna is received, directly or via a reflector, by a receive antenna in a relay using the same frequency band in an orthogonal frequency division multiplexing (OFDM)-based radio communication system.

Abstract translation: 提供了一种自干扰消除方法和装置，其可以消除在直接或经由反射器接收发射天线的发射信号时由在正交频率中使用相同频带的中继器中的接收天线发生的自干扰 基于OFDM的无线电通信系统。

公开(公告)号：WO2012064080A2

公开(公告)日：2012-05-18

申请号：PCT/KR2011008460

申请日：2011-11-08

Applicant: KOREA ELECTRONICS TELECOMM ,  LEE HEESOO ,  AHN JAE YOUNG

Inventor： LEE HEESOO ,  AHN JAE YOUNG

IPC: H04B7/26 ,  H04W16/02

CPC classification number: H04W72/082 ,  H04J11/005 ,  H04J2211/001 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0073 ,  H04L5/0096 ,  H04W48/10 ,  H04W84/045

Abstract: Disclosed is a method for controlling interference in a heterogeneous network environment. The method for controlling the inter-cell interference of a base station according to one aspect of the present invention comprises the following steps: transmitting, to a terminal, information relating to subframes in which a portion of a resource is to be punctured; transmitting, to the terminal, a relevant subframe in which a portion of a resource is punctured on the basis of the information relating to said subframes. A method for controlling the inter-cell interference of a base station according to another aspect of the present invention comprises the following steps: setting a resource for transmitting system information; and transmitting system information using only said resource for transmitting system information, or preferentially using said resource for transmitting system information when transmitting system information using a subframe designated as an almost blank subframe (ABS). Accordingly, inter-cell interference problems may be alleviated even in the event pieces of important system information, such as CRS, should be transmitted using an ABS.

Abstract translation: 公开了一种用于控制异构网络环境中的干扰的方法。 根据本发明的一个方面，用于控制基站的小区间干扰的方法包括以下步骤：向终端发送与其中要对一部分资源进行打孔的子帧有关的信息; 基于与所述子帧相关的信息向终端发送其中部分资源被打孔的相关子帧。 根据本发明的另一方面，一种用于控制基站的小区间干扰的方法包括以下步骤：设置用于发送系统信息的资源; 以及仅使用用于发送系统信息的所述资源来发送系统信息，或者当使用被指定为几乎空白子帧（ABS）的子帧来发送系统信息时优先使用所述用于发送系统信息的资源。 因此，即使在使用ABS传输重要系统信息（诸如CRS）的情况下，也可以缓解小区间干扰问题。

公开(公告)号：WO2011034392A3

公开(公告)日：2011-07-14

申请号：PCT/KR2010006452

申请日：2010-09-17

Applicant: KOREA ELECTRONICS TELECOMM ,  JEONG BYUNG JANG ,  KO YOUNG JO ,  SEO BANGWON ,  AHN JAE YOUNG

Inventor： JEONG BYUNG JANG ,  KO YOUNG JO ,  SEO BANGWON ,  AHN JAE YOUNG

IPC: H04B7/26 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04L5/0007 ,  H04L27/2607 ,  H04L27/265 ,  H04W72/0413

Abstract: Disclosed is a method for generating and transmitting a reference signal in a clustered DFT-spread OFDM transmission scheme. A method for generating and transmitting a DM-RS in a clustered DFT-spread-OFDM scheme comprises: a step of generating DM-RS sequences corresponding to the number of clusters allocated for an uplink transmission; and a step of mapping the generated DM-RS sequences to the relevant DM-RS symbol positions for each cluster. Accordingly, the method for generating and transmitting a reference signal according to the present invention, in which DM-RS sequences are allocated and transmitted on a cluster basis, uses a complete DM-RS sequence for each cluster, and therefore inter-cell interference can be weakened, and problems which might occur when applied to a multi-user MIMO (MU-MIMO) scheme can be solved.

Abstract translation: 公开了一种用于在集束DFT扩展OFDM传输方案中生成和传输参考信号的方法。 一种用于在集群DFT扩展-OFDM方案中生成和发送DM-RS的方法包括：生成与分配用于上行链路传输的集群的数量相对应的DM-RS序列的步骤; 以及将所生成的DM-RS序列映射到每个簇的相关DM-RS符号位置的步骤。 因此，根据本发明的用于生成和发送参考信号的方法（其中DM-RS序列被分配并以簇为基础进行发送）针对每个簇使用完整的DM-RS序列，并且因此小区间干扰可以 被削弱，并且可以解决应用于多用户MIMO（MU-MIMO）方案时可能出现的问题。

公开(公告)号：WO2010011054A3

公开(公告)日：2011-04-07

申请号：PCT/KR2009003947

申请日：2009-07-17

Applicant: KOREA ELECTRONICS TELECOMM ,  LEE KYOUNG SEOK ,  AHN JAE YOUNG ,  KIM JAE HEUNG ,  KIM YEONG JIN

Inventor： LEE KYOUNG SEOK ,  AHN JAE YOUNG ,  KIM JAE HEUNG ,  KIM YEONG JIN

IPC: H04W28/06 ,  H04L12/66 ,  H04L29/06

CPC classification number: H04W28/06 ,  H04B7/155 ,  H04B7/2606 ,  H04W84/047 ,  H04W88/16

Abstract: The invention relates to a technology for decreasing or eliminating communication overhead in a communication system for communicating packet data. A gateway compresses IP header (331 ), UDP/Real-time, and Transport Protocol (RTP) header and associates with the data to transmit the data to a base station. The base station compresses the GTP related header (320) using a RObust Header Compression (ROHC) scheme. UDP/RTP header (332) is integrated with the plurality of data packets, generates SCTP header. The base station generates header decompression information, and inserts it into a Packet Data Convergence Protocol (PDCP) of the LTE L2 header (310) as a header compression (HC) header (335). The relay receives the data from the base station using the Layer (Ll) and the Layer (L2) of a 3GPP LTE protocol. The base station transmits, via the relay, the header decompression information to a terminal accessing the relay, and the terminal can decompress the compressed GTP header (323) using the header decompression information.

Abstract translation: 本发明涉及用于减少或消除用于传送分组数据的通信系统中的通信开销的技术。 网关压缩IP报头（331），UDP /实时和传输协议（RTP）报头，并与数据相关联，以将数据发送到基站。 基站使用RObust Header Compression（ROHC）方案来压缩GTP相关的报头（320）。 UDP / RTP报头（332）与多个数据分组集成，生成SCTP报头。 基站产生报头解压缩信息，并将其插入LTE L2报头（310）的分组数据汇聚协议（PDCP）中作为报头压缩（HC）报头（335）。 中继器使用3GPP LTE协议的层（L1）和层（L2）从基站接收数据。 基站通过中继将报头解压缩信息发送到接入中继的终端，终端可以使用报头解压缩信息解压缩压缩的GTP报头（323）。

公开(公告)号：WO2010019009A2

公开(公告)日：2010-02-18

申请号：PCT/KR2009004532

申请日：2009-08-13

Applicant: KOREA ELECTRONICS TELECOMM ,  NOH TAEGYUN ,  LEE KYOUNG SEOK ,  AHN JAE YOUNG

Inventor： NOH TAEGYUN ,  LEE KYOUNG SEOK ,  AHN JAE YOUNG

IPC: H04W72/04 ,  H04W16/16

CPC classification number: H04W72/06 ,  H04W28/20 ,  H04W72/0406

Abstract: A type 1 system and a type 2 system are classified according to whether carrier aggregation is used. A shared component carrier is used for both a type 1 terminal and a type 2 terminal, whereas a dedicated component carrier is used only for the type 2 terminal. Also, a type 2 base station transmits broadcast information by using a shared component carrier. In this instance, the broadcast information includes the shared broadcast information used for both the type 1 terminal and the type 2 terminal and the dedicated broadcast information only for the type 2 terminal. Also, the type 2 base station indicates component carriers that are used by the type 2 terminal, by using a semi-static component carrier indicator or a dynamic component carrier indicator.

Abstract translation: 类型1系统和类型2系统根据是否使用载波聚合进行分类。 共享分量载波用于1型终端和2型终端，而专用分量载波仅用于2型终端。 此外，2型基站通过使用共享分量载波来发送广播信息。 在这种情况下，广播信息包括用于类型1终端和类型2终端的共享广播信息和仅用于类型2终端的专用广播信息。 此外，类型2基站通过使用半静态分量载波指示符或动态分量载波指示符来指示类型2终端使用的分量载波。

公开(公告)号：WO2010002192A2

公开(公告)日：2010-01-07

申请号：PCT/KR2009003594

申请日：2009-07-01

Applicant: KOREA ELECTRONICS TELECOMM ,  JEONG BYUNG JANG ,  NOH TAEGYUN ,  KO YOUNG JO ,  AHN JAE YOUNG

Inventor： JEONG BYUNG JANG ,  NOH TAEGYUN ,  KO YOUNG JO ,  AHN JAE YOUNG

IPC: H04B7/02

CPC classification number: H04B7/0682 ,  H04L5/0044 ,  H04L27/2602 ,  H04L27/2614

Abstract: Provided is a technology adopting multiple transmit antennas in a radio communication system. In a mobile communication system of a signal carrier frequency division multiple access (SC-FDMA) scheme, it is possible to transmit data using the multiple transmit antennas, while maintaining a peak to average power ratio (PAPR) to be low. Also, it is possible to provide a new transmit diversity transmission even in a general radio communication system including an orthogonal frequency division multiple access (OFDMA), a code division multiple access (CDMA) scheme, and the like.

Abstract translation: 提供了一种在无线电通信系统中采用多个发射天线的技术。 在信号载波频分多址（SC-FDMA）方式的移动通信系统中，可以在使峰值平均功率比（PAPR）保持为低的同时，使用多个发送天线发送数据。 此外，即使在包括正交频分多址（OFDMA），码分多址（CDMA）方案等的通用无线电通信系统中，也可以提供新的发射分集传输。

公开(公告)号：WO2010018958A3

公开(公告)日：2013-02-28

申请号：PCT/KR2009004447

申请日：2009-08-10

Applicant: KOREA ELECTRONICS TELECOMM ,  SEO BANGWON ,  KO YOUNG JO ,  AHN JAE YOUNG

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

IPC: H04B7/02 ,  H04B7/06

CPC classification number: H04B7/024 ,  H04B7/0413

Abstract: Provided is a precoding matrix design method for a cooperative communication of multiple base stations in a multiple input multiple output (MIMO) communication system. A method of designing a precoding matrix in a base station of the MIMO communication system may include: determining whether to use a cooperative communication; verifying a cooperative base station when the cooperative communication is determined to be used; selecting a precoding matrix to be applied by a home base station and the cooperative base station; and requesting the home base station and the cooperative base station for the cooperative communication using the selected precoding matrix.

Abstract translation: 提供了一种用于多输入多输出（MIMO）通信系统中的多个基站的协作通信的预编码矩阵设计方法。 在MIMO通信系统的基站中设计预编码矩阵的方法可以包括：确定是否使用协作通信; 在确定使用协作通信时验证协作基站; 选择由家庭基站和协作基站应用的预编码矩阵; 以及使用所选择的预编码矩阵来请求所述家庭基站和所述协作基站进行协作通信。