公开(公告)号：US20100322109A1

公开(公告)日：2010-12-23

申请号：US12866103

申请日：2009-02-04

申请人： Jae Young Ahn ,  Hyun Kyu Chung

发明人： Jae Young Ahn ,  Hyun Kyu Chung

IPC分类号： H04W16/12 ,  H04W40/16

CPC分类号： H04W12/02 ,  H04B7/06 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0062 ,  H04L5/0073 ,  H04W52/367

摘要： An inter-cell interference mitigation method in an orthogonal frequency division multiple access (OFDM)-based cellular system includes: dividing wireless resources into a resource group for fractional frequency reuse and a resource group for removing inter-cell interference; and re-dividing the resource group for fractional frequency reuse into particular resource groups numbering the same as a number of cell types of fractional frequency reuse, and applying a maximum transmission power to a particular resource group according to a cell type for fractional frequency reuse.

摘要翻译： 在基于正交频分多址（OFDM）的蜂窝系统中的小区间干扰减轻方法包括：将无线资源划分为用于小数频率重用的资源组和用于去除小区间干扰的资源组; 并将分数频率重用的资源组重新划分为与分数次频率重用的小区类型的数量相同的特定资源组，以及根据用于分数频率重用的小区类型向特定资源组应用最大发射功率。

公开(公告)号：US20090249159A1

公开(公告)日：2009-10-01

申请号：US11721162

申请日：2005-12-07

申请人： Sang Hyun Lee ,  Jae Young Ahn

发明人： Sang Hyun Lee ,  Jae Young Ahn

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/1148 ,  H03M13/6505

摘要： Provided are an LDPC encoder and decoder, and LDPC encoding and decoding methods. The LDPC encoder includes: a code generating circuit that includes a memory storing a first parity check matrix and sums a first row which is at least one row of the first parity check matrix and a second row which is at least one of the remaining rows of the first parity check matrix to output a second parity check matrix; and an encoding circuit receiving the second parity check matrix and an information word to output an LDPC-encoded code word. Also the LDPC decoder includes: a code generating circuit including a memory which stores a first parity check matrix and summing a first row which is at least one row of the first parity check matrix and a second row which is at least one of the remaining rows of the first parity check matrix to output a second parity check matrix; and a decoding circuit receiving the second parity check matrix and a code word to output an LDPC-decoded information word.

摘要翻译： 提供了一种LDPC编码器和解码器，以及LDPC编码和解码方法。 LDPC编码器包括：代码生成电路，其包括存储第一奇偶校验矩阵的存储器，并且对作为第一奇偶校验矩阵的至少一行的第一行和与作为第一奇偶校验矩阵的剩余行中的至少一行的第二行求和 所述第一奇偶校验矩阵输出第二奇偶校验矩阵; 以及接收第二奇偶校验矩阵的编码电路和输出LDPC编码码字的信息字。 此外，LDPC解码器包括：代码生成电路，包括存储器，存储第一奇偶校验矩阵并对作为第一奇偶校验矩阵的至少一行的第一行求和作为剩余行中的至少一个的第二行 的第一奇偶校验矩阵以输出第二奇偶校验矩阵; 以及接收第二奇偶校验矩阵的解码电路和输出LDPC解码信息字的码字。

公开(公告)号：US07233572B2

公开(公告)日：2007-06-19

申请号：US10183348

申请日：2002-06-28

申请人： Yun Joo Kim ,  Jae Young Ahn ,  Mee Jeong Lee

发明人： Yun Joo Kim ,  Jae Young Ahn ,  Mee Jeong Lee

IPC分类号： H04L1/00

CPC分类号： H04L47/28 ,  H04L1/16 ,  H04L1/1835 ,  H04L1/1848 ,  H04L1/1874 ,  H04L47/14 ,  H04W28/14 ,  H04W80/00 ,  H04W88/08

摘要： A packet transmission apparatus and method is disclosed. The present invention transmits data packets without relaying a duplicate acknowledgement packet by equipping an indirect acknowledgement timer at a buffer, generating/transmitting the indirect acknowledgement packet of the first arrived acknowledgment packet base on the indirect acknowledgement timer and implementing an indirect acknowledgement method to a snoop protocol for overcoming problems of the transmission control protocol (TCP) in the wireless network environment. The present invention effectively utilizes resources of the wireless link, which is wasted during recovering lost packet in the conventional snoop protocol. The present invention also reduces a required size of the buffer of the base station by allowing a partially-generation of the indirect acknowledgement packet.

摘要翻译： 公开了一种分组传输装置和方法。 本发明通过在缓冲器上配置间接确认定时器来发送数据分组而不中继重复确认分组，基于间接确认定时器生成/发送第一到达的确认分组的间接确认分组，并且将间接确认方法实施为一个监听 用于克服无线网络环境中传输控制协议（TCP）问题的协议。 本发明有效地利用了无线链路的资源，这在传统的窥探协议中恢复丢包过程中浪费了资源。 本发明还通过允许间接确认分组的部分产生来减少基站的缓冲器的所需大小。

公开(公告)号：US10002875B2

公开(公告)日：2018-06-19

申请号：US15466111

申请日：2017-03-22

申请人： Phil Ouk Nam ,  Hyung Joon Kim ,  Sung Gil Kim ,  Ji Hoon Choi ,  Seulye Kim ,  Hong Suk Kim ,  Jae Young Ahn

发明人： Phil Ouk Nam ,  Hyung Joon Kim ,  Sung Gil Kim ,  Ji Hoon Choi ,  Seulye Kim ,  Hong Suk Kim ,  Jae Young Ahn

IPC分类号： H01L29/49 ,  H01L27/11556 ,  H01L27/11582 ,  H01L29/40 ,  H01L29/06

CPC分类号： H01L29/0653 ,  H01L27/1157 ,  H01L27/11582 ,  H01L29/402 ,  H01L29/408

摘要： A semiconductor device may include gate electrodes and interlayer insulating layers alternately stacked on a substrate, a channel layer penetrating the gate electrodes and the interlayer insulating layers, a gate dielectric layer between the gate electrodes and the channel layer, a filling insulation that fills at least a portion of an interior of the channel layer, a charge fixing layer between the channel layer and the filling insulation and including a high-k material and/or a metal, and a conductive pad connected to the channel layer and on the filling insulation. The conductive pad may be physically separated from the charge fixing layer.

公开(公告)号：US08983479B2

公开(公告)日：2015-03-17

申请号：US12769215

申请日：2010-04-28

申请人： Young-Jo Ko ,  Jae Young Ahn ,  Bangwon Seo

发明人： Young-Jo Ko ,  Jae Young Ahn ,  Bangwon Seo

IPC分类号： H04W72/12 ,  H04B7/04 ,  H04B7/02 ,  H04L5/00 ,  H04B7/06

CPC分类号： H04B7/0452 ,  H04B7/022 ,  H04B7/024 ,  H04B7/0639 ,  H04L5/0023 ,  H04L5/0051 ,  H04W72/1231

摘要： Provided are a method of transmitting a dedicated reference signal (DRS), a method of receiving a DRS, and a feedback method of a terminal. The method of transmitting a DRS includes determining a DRS transmitting resource for at least one terminal which is a target of transmission, and transmitting the DRS using the determined transmission resource and notifying the terminal of information about layer used by the terminal. The method of receiving a DRS includes determining a DRS receiving resource, receiving information about layer used by a terminal from a serving cell base station, and receiving the DRS for the terminal using the determined reception resource and the information about layer. Accordingly, a terminal can find the position and sequence of its DRS. In particular, in the case of multi-user multiple input multiple output (MU-MIMO) or joint scheduling, it is possible to prevent or remove signal interference using the DRS of another terminal.

摘要翻译： 提供了发送专用参考信号（DRS），接收DRS的方法和终端的反馈方法的方法。 发送DRS的方法包括确定作为传输对象的至少一个终端的DRS发送资源，以及使用所确定的传输资源发送DRS，并向终端通知关于终端使用的层的信息。 接收DRS的方法包括确定DRS接收资源，从服务小区基站接收终端使用的层的信息，以及使用所确定的接收资源和关于层的信息来接收终端的DRS。 因此，终端可以找到其DRS的位置和顺序。 特别地，在多用户多输入多输出（MU-MIMO）或联合调度的情况下，可以使用另一终端的DRS来防止或消除信号干扰。

公开(公告)号：US08965436B2

公开(公告)日：2015-02-24

申请号：US13817362

申请日：2011-08-16

申请人： Hee Soo Lee ,  Jae Young Ahn

发明人： Hee Soo Lee ,  Jae Young Ahn

IPC分类号： H04B7/00 ,  H04W52/14 ,  H04W52/36 ,  H04W52/40 ,  H04W52/24 ,  H04W72/04

CPC分类号： H04W52/146 ,  H04W52/247 ,  H04W52/248 ,  H04W52/362 ,  H04W52/40 ,  H04W72/0446 ,  H04W72/0473

摘要： Disclosed is a method for controlling uplink transmit power in a mobile communication system. A mobile communication includes a first base station and a second base station which are located in two mutually adjacent cells, respectively, at least one base station of the first and second base stations which generate a subframe offset of transmit power (SOTP), and transmits a subframe offset of transmit power generated by at least one base station of the first and second base stations to at least one terminal which belongs to a corresponding cell. Accordingly, it is possible to reduce signaling times for transmit power control, and to accurately control transmit power.

摘要翻译： 公开了一种用于控制移动通信系统中的上行链路发射功率的方法。 移动通信包括分别位于两个相邻小区中的第一基站和第二基站，第一和第二基站的至少一个基站产生发射功率的子帧偏移（SOTP），并且发送 由第一和第二基站的至少一个基站产生的属于相应小区的至少一个终端的发射功率的子帧偏移。 因此，可以减少发送功率控制的信令时间，并且能够精确地控制发送功率。

公开(公告)号：US08934396B2

公开(公告)日：2015-01-13

申请号：US13235723

申请日：2011-09-19

申请人： Tae Gyun Noh ,  Jae Young Ahn ,  Hee Soo Lee ,  Kyoung Seok Lee

发明人： Tae Gyun Noh ,  Jae Young Ahn ,  Hee Soo Lee ,  Kyoung Seok Lee

IPC分类号： H04B7/14 ,  H04B7/26 ,  H04B7/155 ,  H04W72/04 ,  H04W88/08

CPC分类号： H04B7/2606 ,  H04B7/15542 ,  H04B7/15557 ,  H04W72/0426 ,  H04W88/085

摘要： Provided are an uplink transmission method and downlink transmission method in a mobile communication network including a relay. In the uplink and downlink transmission methods, frame structures and transmission timings of a backhaul downlink and a backhaul uplink are determined in consideration of at least one of a time for the relay to switch between transmission and reception and a signal transmission time. Accordingly, in a wireless communication system including a relay, it is possible to effectively perform data transmission and reception between the relay and a base station.

摘要翻译： 提供了包括中继的移动通信网络中的上行链路传输方法和下行链路传输方法。 在上行链路和下行链路传输方法中，考虑到中继在发送和接收之间切换的时间与信号传输时间中的至少一个，确定回程下行链路和回程上行链路的帧结构和传输定时。 因此，在包括中继的无线通信系统中，能够有效地进行中继与基站之间的数据发送和接收。

公开(公告)号：US08577287B2

公开(公告)日：2013-11-05

申请号：US13062344

申请日：2009-09-10

申请人： Bangwon Seo ,  Young Jo Ko ,  Jae Young Ahn

发明人： Bangwon Seo ,  Young Jo Ko ,  Jae Young Ahn

IPC分类号： H04B7/24

CPC分类号： H04B7/024 ,  H04B7/0669 ,  H04L1/0606 ,  H04L1/0668 ,  H04L2001/0092

摘要： Provided is a method of applying a transmission diversity scheme in a multiple cell cooperative communication system in which a terminal may receive, from a plurality of base stations, identical data using an identical radio resource. In the method, base stations of a cooperative base station involved in a cooperative communication may apply the transmission diversity scheme using the same resource as time and frequency resources used to apply the transmission diversity scheme in a base station of a serving base station.

摘要翻译： 提供了一种在多小区协作通信系统中应用传输分集方案的方法，其中终端可以使用相同的无线电资源从多个基站接收相同的数据。 在该方法中，参与协作通信的协作基站的基站可以使用与用于在服务基站的基站中应用发送分集方案的时间和频率资源相同的资源来进行发送分集方案。

公开(公告)号：US20120154439A1

公开(公告)日：2012-06-21

申请号：US13287636

申请日：2011-11-02

申请人： Jae Young Ahn ,  Sungmo Jung ,  Jae-gu Song ,  Seoksoo Kim

发明人： Jae Young Ahn ,  Sungmo Jung ,  Jae-gu Song ,  Seoksoo Kim

IPC分类号： G09G5/00

CPC分类号： G06T19/006

摘要： An apparatus for operating multiple objects in an augmented reality system converts a reference point recognized in an input image into copyable basic data, then copies the basic data to each position of a screen where the image is to be output, and then augments an object by using a copy of the basic data as the reference point.

摘要翻译： 用于在增强现实系统中操作多个对象的装置将输入图像中识别的参考点转换为可复制的基本数据，然后将基本数据复制到要输出图像的屏幕的每个位置，然后通过 使用基本数据的副本作为参考点。

公开(公告)号：US20120087393A1

公开(公告)日：2012-04-12

申请号：US13377720

申请日：2010-06-14

申请人： Byung Jang Jeong ,  Bangwon Seo ,  Jae Young Ahn

发明人： Byung Jang Jeong ,  Bangwon Seo ,  Jae Young Ahn

IPC分类号： H04B1/69

CPC分类号： H04L5/0051 ,  H04L27/2614 ,  H04L27/2636

摘要： Provided is a data transmission apparatus to transmit a reference orthogonal frequency division multiplexing (OFDM) symbol generated by frequency division multiplexing a reference symbol and a data symbol, and a data reception apparatus to estimate a channel using the reference OFDM symbol. Since the reference symbol and the data symbol are frequency division multiplexed, a Peak to Average Power Ratio (PAPR) may not increase greatly, and the transmission apparatus may transmit the reference OFDM symbol to the data reception apparatus more frequently. Accordingly, the data reception apparatus may estimate a channel accurately.

摘要翻译： 提供了一种数据发送装置，用于发送通过频分复用参考符号和数据符号产生的参考正交频分复用（OFDM）符号，以及数据接收装置，用于使用参考OFDM符号来估计信道。 由于参考符号和数据符号是频分复用的，因此峰均比功率比（PAPR）可能不会大大增加，并且发送装置可以更频繁地将数据接收装置发送参考OFDM码元。 因此，数据接收装置可以准确地估计信道。