公开(公告)号：US08780940B2

公开(公告)日：2014-07-15

申请号：US13140167

申请日：2009-08-06

Applicant: Sung-Jin You ,  Gwangzeen Ko ,  Moon-Won Lee ,  Jung-Sun Um ,  Myung-Sun Song

Inventor： Sung-Jin You ,  Gwangzeen Ko ,  Moon-Won Lee ,  Jung-Sun Um ,  Myung-Sun Song

IPC: H04J3/18 ,  H04B7/216 ,  H04B7/185

CPC classification number: H03M7/30 ,  H04L69/04 ,  H04L69/22

Abstract: Provided is a method and apparatus for efficiently transmitting and receiving a frame including a header and a payload in a communication system. If the number of repeated items in the content of a header of the frame is high, specific preambles are allocated to the repeated items and the repeated items are omitted. Accordingly, data transfer efficiency can be improved.

Abstract translation: 提供了一种用于在通信系统中有效地发送和接收包括报头和有效载荷的帧的方法和装置。 如果帧的头部的内容中的重复项目的数量高，则将特定的前导码分配给重复的项目，并且省略重复的项目。 因此，可以提高数据传送效率。

公开(公告)号：US20130294146A1

公开(公告)日：2013-11-07

申请号：US13588476

申请日：2012-08-17

Applicant: Jeong Hwan KIM ,  Sai Hyung JANG ,  Myung Sun SONG

Inventor： Jeong Hwan KIM ,  Sai Hyung JANG ,  Myung Sun SONG

IPC: G11C11/21 ,  H01L21/02 ,  G11C5/02

CPC classification number: G11C13/0023 ,  G11C11/16 ,  G11C13/0004 ,  G11C13/0007 ,  G11C2213/52

Abstract: A resistive memory device according to an embodiment includes a plurality of word lines extended and formed in a first direction; a global word line signal line extended substantially in the first direction, formed substantially in a layer substantially identical with the word lines, and interposed substantially between a designated number of the word lines; a plurality of bit lines extended and formed in a second direction tilted at an angle with the first direction; a plurality of normal cells connected substantially between the word line and the bit line; and a plurality of dummy cells connected substantially between the global word line signal line and the bit line.

Abstract translation: 根据实施例的电阻式存储器件包括沿第一方向延伸和形成的多个字线; 全局字线信号线基本上在第一方向上延伸，基本上形成在与字线基本相同的层中，并基本位于指定数量的字线之间; 沿与第一方向成一角度倾斜的第二方向延伸并形成的多个位线; 基本上在字线和位线之间连接的多个正常单元; 以及基本上在全局字线信号线和位线之间连接的多个虚拟单元。

公开(公告)号：US08363742B2

公开(公告)日：2013-01-29

申请号：US12837777

申请日：2010-07-16

Applicant: Hoi-Yoon Jung ,  Sun-Min Lim ,  Sang-Won Kim ,  Myung-Sun Song

Inventor： Hoi-Yoon Jung ,  Sun-Min Lim ,  Sang-Won Kim ,  Myung-Sun Song

IPC: H04K1/10

CPC classification number: H04L27/0006

Abstract: A method for detecting a received signal includes: dividing the entire band of the received signal into N frequency components where N is a natural number larger than one, and deciding a reference frequency component containing a reference frequency as a first priority sensing band among the N frequency components; deciding the sensing priorities of the other (N−1) frequency components in such a manner that the sensing priorities spread in both directions from the first priority sensing band; calculating the magnitude of each of the N frequency components in accordance with the decided sensing priorities; comparing the calculated magnitude of the frequency component with a predetermined threshold value; and when the calculated magnitude of the frequency component is larger than the threshold value, determining that the received signal exists.

Abstract translation: 用于检测接收信号的方法包括：将接收信号的整个频带划分为N个频率分量，其中N是大于1的自然数，并且将N中的包含参考频率的参考频率分量作为第一优先感测频带 频率分量; 以这样的方式确定另一（N-1）个频率分量的感测优先级，使得感测优先级从第一优先感测频带在两个方向上扩展; 根据所确定的感测优先级来计算每个N个频率分量的幅度; 将所述频率分量的所计算的幅度与预定阈值进行比较; 并且当计算出的频率分量的大小大于阈值时，确定接收到的信号存在。

公开(公告)号：US20110249769A1

公开(公告)日：2011-10-13

申请号：US12974634

申请日：2010-12-21

Applicant: Min Soo Kang ,  Chong-Hoon Kim ,  Woo Jin Byun ,  Kwang Seon Kim ,  Bong-Su Kim ,  Myung Sun Song

Inventor： Min Soo Kang ,  Chong-Hoon Kim ,  Woo Jin Byun ,  Kwang Seon Kim ,  Bong-Su Kim ,  Myung Sun Song

IPC: H04L25/49 ,  H04L27/00

CPC classification number: H04L25/03038

Abstract: Provided is a method and apparatus improving a deterioration of a gain flatness and a phase characteristic that may be incurred while a baseband signal is transformed into a immediate frequency (IF) signal and a radio frequency (RF) signal in a broadband wireless communication system. A sub-band extractor may divide the broadband signal into multiple sub-band signals, may pre-compensate for a gain and a phase delay of each sub-band signals in the baseband, and may combine the pre-compensated sub-band signals into the single broadband signal and thus, the deterioration of the gain flatness and a phase delay flatness that may be incurred while the broadband signal is transformed into the IF signal and the RF to signal, may be improved.

Abstract translation: 提供了一种改善在宽带无线通信系统中将基带信号变换为立即频（IF）信号和射频（RF））信号时可能产生的增益平坦度和相位特性恶化的方法和装置。 子带提取器可以将宽带信号划分成多个子带信号，可以对基带中每个子带信号的增益和相位延迟进行预补偿，并且可以将预补偿的子带信号组合成 因此，可以提高宽带信号变换为IF信号和RF信号时可能引起的单个宽带信号和增益平坦度的劣化以及相位延迟平坦度。

公开(公告)号：US20110167321A1

公开(公告)日：2011-07-07

申请号：US12809392

申请日：2008-02-29

Applicant: Sung-Hyun Hwang ,  Jung Sun Um ,  Myung Sun Song ,  Chang-Joo Kim ,  Se-Bin Im ,  Tae-Woong Yoon ,  Hyung-Jin Choi

Inventor： Sung-Hyun Hwang ,  Jung Sun Um ,  Myung Sun Song ,  Chang-Joo Kim ,  Se-Bin Im ,  Tae-Woong Yoon ,  Hyung-Jin Choi

IPC: H04L27/28 ,  H04B17/00 ,  H03M13/23 ,  G06F11/10

CPC classification number: H04L5/0051 ,  H04L25/0224 ,  H04L25/03292 ,  H04L27/2613 ,  H04L27/2647

Abstract: A data transmitter and receiver for improving a data rate, and more particularly, to an apparatus and method of transmitting and receiving an orthogonal frequency division multiplexing (OFDM) symbol in which a pilot signal is added to a data signal is provided. The apparatus includes a transmitter including: a pilot adder to add a pilot signal to a data signal; and a guard interval inserting unit to insert a guard interval to the data signal with the added pilot signal, and a receiver including: a guard interval removal unit to remove a guard interval in a received time domain signal; a fast Fourier transform (FFT) unit to transform the time domain signal in which the guard interval is removed to a frequency domain signal; a channel estimator to estimate a channel value from the time domain signal in which the guard interval is removed; an equalizer to equalize the frequency domain signal based on the estimated channel value; and a pilot signal removal unit to remove the pilot signal in the equalized frequency domain signal.

Abstract translation: 提供了一种用于提高数据速率的数据发送器和接收器，更具体地，涉及一种发送和接收其中向数据信号添加导频信号的正交频分复用（OFDM）符号的装置和方法。 该装置包括：发射机，包括：导频加法器，用于将导频信号加到数据信号上; 以及保护间隔插入单元，用于利用所附加的导频信号向所述数据信号插入保护间隔;以及接收机，包括：保护间隔去除单元，用于去除所接收的时域信号中的保护间隔; 快速傅立叶变换（FFT）单元，用于将保护间隔被去除的时域信号变换为频域信号; 信道估计器，用于从保护间隔被去除的时域信号中估计信道值; 均衡器，用于基于估计的信道值来均衡频域信号; 以及导频信号去除单元，用于去除均衡的频域信号中的导频信号。

公开(公告)号：US20110150131A1

公开(公告)日：2011-06-23

申请号：US12882833

申请日：2010-09-15

Applicant: Min Soo KANG ,  Woo Jin BYUN ,  Kwang Seon KIM ,  Bong-Su KIM ,  Myung Sun SONG

Inventor： Min Soo KANG ,  Woo Jin BYUN ,  Kwang Seon KIM ,  Bong-Su KIM ,  Myung Sun SONG

IPC: H04L25/03 ,  H04L27/06

CPC classification number: H04L25/03834 ,  H04L25/03159 ,  H04L27/368

Abstract: An apparatus for processing a digital transmission signal for a transmitter includes a transmission Finite Impulse Response (FIR) filter to perform shaping on initial setting data to convert the initial setting data into a signal having a predetermined passband, a comparator to compare the signal with data including degradation information provided as feedback by a receiver corresponding to the transmitter, to generate a control signal, and a band flatness correction filter to adjust a coefficient of the band flatness correction filter in response to the control signal, and to correct an in-band flatness.

Abstract translation: 用于处理发射机的数字传输信号的装置包括：传输有限脉冲响应（FIR）滤波器，用于对初始设置数据进行整形，以将初始设置数据转换为具有预定通带的信号;比较器，用于将信号与数据进行比较 包括由对应于发射机的接收机反馈提供的降级信息，以产生控制信号，以及频带平坦度校正滤波器，以响应于控制信号调整频带平坦度校正滤波器的系数，并校正带内 平坦度

公开(公告)号：US20110116516A1

公开(公告)日：2011-05-19

申请号：US13014246

申请日：2011-01-26

Applicant: Sung-Hyun HWANG ,  Chang-Joo KIM ,  Myung-Sun SONG ,  Jung-Sun UM

Inventor： Sung-Hyun HWANG ,  Chang-Joo KIM ,  Myung-Sun SONG ,  Jung-Sun UM

IPC: H04J1/02 ,  H04L27/06 ,  H04L27/28

CPC classification number: H04W72/0406 ,  H04L5/0007 ,  H04L5/0048

Abstract: Provided is a method of generating a pilot pattern capable of perform adaptive channel estimation, and a method and apparatus of a base station and a method and apparatus of a terminal using the pilot pattern.The pilot pattern selects pilot symbol positions based on distances from pilots of previous orthogonal frequency division multiple access (OFDMA) symbols to a subcarrier position of a current OFDMA symbol in the frequency domain and the time domain, so that a low pilot density is maintained so as to effectively transmit data, and stable channel estimation performance can be obtained even in a bad channel environment.In addition, the minimum burst allocation size is determined according to the channel environment between the base station and the terminal, guaranteeing channel estimation performance suitable for the channel environment, and improving granularity, channel estimation latency, and channel estimation memory size.

公开(公告)号：US20110116411A1

公开(公告)日：2011-05-19

申请号：US13014213

申请日：2011-01-26

Applicant: Sung-Hyun HWANG ,  Chang-Joo KIM ,  Myung-Sun SONG ,  Jung-Sun UM

Inventor： Sung-Hyun HWANG ,  Chang-Joo KIM ,  Myung-Sun SONG ,  Jung-Sun UM

IPC: H04W72/04 ,  H04L12/26

CPC classification number: H04W72/0406 ,  H04L5/0007 ,  H04L5/0048

Abstract: Provided is a method of generating a pilot pattern capable of perform adaptive channel estimation, and a method and apparatus of a base station and a method and apparatus of a terminal using the pilot pattern.The pilot pattern selects pilot symbol positions based on distances from pilots of previous orthogonal frequency division multiple access (OFDMA) symbols to a subcarrier position of a current OFDMA symbol in the frequency domain and the time domain, so that a low pilot density is maintained so as to effectively transmit data, and stable channel estimation performance can be obtained even in a bad channel environment.In addition, the minimum burst allocation size is determined according to the channel environment between the base station and the terminal, guaranteeing channel estimation performance suitable for the channel environment, and improving granularity, channel estimation latency, and channel estimation memory size.

Abstract translation: 提供了一种生成能够执行自适应信道估计的导频模式的方法，以及基站的方法和装置以及使用导频模式的终端的方法和装置。 导频模式基于从先前的正交频分多址（OFDMA）符号的导频到频域和时域中的当前OFDMA符号的子载波位置的距离来选择导频符号位置，从而维持低导频密度 为了有效地发送数据，即使在恶劣的信道环境中也可以获得稳定的信道估计性能。 另外，根据基站和终端之间的信道环境确定最小突发分配大小，保证适合信道环境的信道估计性能，提高粒度，信道估计延迟和信道估计存储器大小。

公开(公告)号：US20110045862A1

公开(公告)日：2011-02-24

申请号：US12858841

申请日：2010-08-18

Applicant: Jung-Sun UM ,  Myung-Sun SONG ,  Chang-Joo KIM ,  Gwangzeen KO ,  Sung-Hyun HWANG ,  Sang-Won KIM ,  Changhyun PARK

Inventor： Jung-Sun UM ,  Myung-Sun SONG ,  Chang-Joo KIM ,  Gwangzeen KO ,  Sung-Hyun HWANG ,  Sang-Won KIM ,  Changhyun PARK

IPC: H04W72/10 ,  H04B17/00

CPC classification number: H04W72/085 ,  H04W16/14 ,  H04W72/042

Abstract: A CR apparatus for performing communication in a CR network includes: a communication unit configured to measure a channel estimation signal, transmit measured channel state information to a master device, and, when a QP of a reference channel arrives, make a communication channel transition to a candidate channel and perform communication; and a channel information management unit configured to receive and manage the channel state information measured by the communication unit and channel information comprising a candidate channel, into which a channel transition is to be made during a QP of the reference channel, received from the master device and control channel transition of the communication unit based on the channel information.

Abstract translation: 用于在CR网络中执行通信的CR装置包括：通信单元，被配置为测量信道估计信号，将测量的信道状态信息发送到主设备，并且当参考信道的QP到达时，使通信信道转换到 候选频道并进行通信; 以及信道信息管理单元，被配置为接收和管理由所述通信单元测量的信道状态信息，以及信道信息，所述信道信息包括在从所述主设备接收的参考信道的QP期间将要进行信道转换的候选信道 以及基于信道信息的通信单元的控制信道转换。

公开(公告)号：US20110014935A1

公开(公告)日：2011-01-20

申请号：US12639170

申请日：2009-12-16

Applicant: Changhyun PARK ,  Myung Sun SONG ,  Sang-Won KIM ,  Sunmin LIM

Inventor： Changhyun PARK ,  Myung Sun SONG ,  Sang-Won KIM ,  Sunmin LIM

IPC: H04B7/005

CPC classification number: H04L27/0006 ,  H04B17/327

Abstract: Provided is an apparatus and method for scheduling a sensing channel in a wireless communication system. The sensing channel scheduling apparatus may include: an evaluation value calculator to calculate evaluation values with respect to a channel quality for each of channels; a sorter to sort the evaluation values based on a predetermined criterion; and a scheduler to perform scheduling for sequences of the channels using sequences of the sorted evaluation values.

Abstract translation: 提供了一种用于在无线通信系统中调度感测信道的装置和方法。 感测通道调度装置可以包括：评估值计算器，用于计算关于每个信道的信道质量的评估值; 分拣机基于预定标准对评估值进行排序; 以及调度器，使用排序的评估值的序列来执行对信道的序列的调度。