公开(公告)号：US20130322388A1

公开(公告)日：2013-12-05

申请号：US13976202

申请日：2011-12-27

申请人： Jae-Young Ahn ,  Tae Gyun Noh ,  Young Jo Ko

发明人： Jae-Young Ahn ,  Tae Gyun Noh ,  Young Jo Ko

IPC分类号： H04W76/02

CPC分类号： H04W76/14 ,  H04W88/04

摘要： Disclosed are a method for checking whether D2D communication between devices for performing D2D communication is possible, and a method for estimating the proximity of devices to base stations and the proximity of devices to one another for reusing wireless resources in device-to-device communication and terminal relay communication. The method according to the present invention may enable the verification of whether D2D communication is possible between devices to establish a D2D connection, and may enable the wireless resources allocated to a cellular link and to other D2D links to be reused. Further, the method of the present invention may enable variations in a link state caused by terminal mobility to be handled, as well as D2D communication between new UEs and D2D communication between a new UE and a legacy UE, to be handled.

摘要翻译： 公开了一种用于检查用于执行D2D通信的设备之间的D2D通信是否可能的方法，以及用于估计设备与基站的接近度以及设备彼此接近以便在设备到设备通信中重用无线资源的方法，以及 终端中继通信。 根据本发明的方法可以使得能够验证在设备之间是否可以建立D2D连接的D2D通信，并且可以使得分配给蜂窝链路的无线资源和其他D2D链路能够被重用。 此外，本发明的方法可以使处理由终端移动性引起的链路状态的变化以及新UE之间的D2D通信和新UE与传统UE之间的D2D通信的处理。

公开(公告)号：US08406775B2

公开(公告)日：2013-03-26

申请号：US11914922

申请日：2005-12-13

申请人： Jae-Young Ahn ,  Yong-Soo Cho ,  Hyun-Soo Ko

发明人： Jae-Young Ahn ,  Yong-Soo Cho ,  Hyun-Soo Ko

IPC分类号： H04W40/00

CPC分类号： H04B7/0491 ,  H04B7/0408 ,  H04B7/0617 ,  H04L5/023 ,  H04W16/10 ,  H04W16/24 ,  H04W16/28

摘要： A method for selecting beams, a switched beam operation method during an initial synchronization process, and an initial synchronization method using it are provided for selecting beams to minimize the probability of occurrence of interferences between cells by considering a distance between beams within neighboring sectors during an initial synchronization process using switched beams, in an orthogonal frequency division multiplexing (OFDM) cellular system employing a smart antenna. The inventive method comprises the steps of dividing each cell into sectors, and counting the number of fixed beams per cell, and selecting a switched beam for minimizing probability of interference, from fixed beams presenting in a corresponding sector, based on distances between a selected beam and beams of all of adjacent cells and the number of cases to be selected in a subsequent time slot, according to the counted number of the fixed beams existing in each sector.

摘要翻译： 提供一种用于选择波束的方法，初始同步过程中的切换波束操作方法以及使用该方法的初始同步方法，用于选择波束以通过考虑在相邻扇区内的波束之间的距离来最小化小区之间干扰发生的概率 在使用智能天线的正交频分复用（OFDM）蜂窝系统中使用切换波束的初始同步过程。 本发明的方法包括以下步骤：将每个小区划分成扇区，并且对每个小区的固定波束数进行计数，并且根据所选择的波束之间的距离，选择用于最小化相应扇区中呈现的固定波束的干扰概率的切换波束 根据存在于每个扇区中的固定光束的数目，所有相邻小区的波束和后续时隙中的选择的个数。

公开(公告)号：USRE44092E1

公开(公告)日：2013-03-19

申请号：US12949425

申请日：2010-11-18

申请人： Young-Doo Kim ,  Inhyoung Kim ,  Heejung Yu ,  Jihoon Choi ,  Taehyun Jeon ,  Jae-Young Ahn ,  Yong-Hoon Lee

发明人： Young-Doo Kim ,  Inhyoung Kim ,  Heejung Yu ,  Jihoon Choi ,  Taehyun Jeon ,  Jae-Young Ahn ,  Yong-Hoon Lee

IPC分类号： H04B7/02

CPC分类号： H04B7/0891 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0697 ,  H04L1/0003 ,  H04L1/0656 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/0046 ,  H04L5/006 ,  H04W52/42

摘要： An apparatus for adaptively modulating/demodulating signals in a multi-input multi-output (MIMO) system having a layered time-space architecture detector and a method thereof is disclosed. The apparatus includes: a bit and power allocation information calculator for deciding an equivalent channel gain in a reverse order of Vertical-Bell laboratories Space Time (V-BLAST) based on MIMO channel information feedbacked from a receiver and determining the number of bits and transmission power to be transmitted to each transmitting antenna by using the equivalent channel gain; and adaptive modulation means for modulating signal of each layer with corresponding modulation method based on the determined number of bits and transmitting power, controlling the transmitting power and transmitting the adaptively modulated signal through each transmitting antenna. The present invention can improve performance without increase of implementation complexity and easily expand to MIMO-OFDM system by adaptively modulating and demodulating signals in reverse order of conventional V-BLAST detection method.

摘要翻译： 公开了一种用于在具有分层时空架构检测器及其方法的多输入多输出（MIMO）系统中自适应地调制/解调信号的装置。 该装置包括：位和功率分配信息计算器，用于基于从接收机反馈的MIMO信道信息来确定垂直 - 贝尔实验室空时（V-BLAST）的相反顺序的等效信道增益，并确定比特数和传输次数 通过使用等效信道增益发送到每个发射天线的功率; 以及自适应调制装置，用于根据所确定的比特数和发送功率，通过相应的调制方法对每一层的信号进行调制，控制发送功率，并通过每个发送天线发送自适应调制信号。 本发明可以通过以常规V-BLAST检测方法的相反顺序自适应调制和解调信号，而不增加实现复杂度并且容易地扩展到MIMO-OFDM系统。

公开(公告)号：US08213335B2

公开(公告)日：2012-07-03

申请号：US12064808

申请日：2006-08-23

申请人： Jae-Kyun Kwon ,  Jae-Young Ahn ,  Hyo-Jin Lee ,  Hee-Soo Lee

发明人： Jae-Kyun Kwon ,  Jae-Young Ahn ,  Hyo-Jin Lee ,  Hee-Soo Lee

IPC分类号： H04L12/28

CPC分类号： H04W72/048 ,  H04W16/02 ,  H04W72/08

摘要： A communication resource allocation method for solving resource request imbalance content in a cell is provided. Considering a propagation environment, the base station allocates a whispering resource to a whispering area, the whispering resource being one part of the communication resource and the whispering area being a peripheral area of the first base station, and allocates a speaking resource to a speaking area, the speaking resource being other parts of the communication resource and the speaking area being a border area of a cell. When the resource request of the whispering area is increased, the base station further allocates a part of the speaking resource to the whispering area or increases a ratio of the whispering resource. When the resource request of the speaking area is increased, the base station controls a threshold value for identifying the whispering and speaking areas or increases a ratio of the speaking resource.

摘要翻译： 提供了一种用于解决小区中的资源请求不平衡内容的通信资源分配方法。 考虑到传播环境，基站向耳语区域分配耳语资源，耳语资源是通信资源的一部分，耳语区域是第一基站的外围区域，并且向说话区域分配说话资源 说话资源是通信资源的其他部分，而说话区是单元的边界区域。 当耳语区域的资源请求增加时，基站进一步将话音资源的一部分分配给耳语区域，或增加耳语资源的比例。 当语音区域的资源请求增加时，基站控制用于识别耳语和说话区域的阈值，或增加说话资源的比例。

公开(公告)号：US07848218B2

公开(公告)日：2010-12-07

申请号：US12064206

申请日：2006-08-18

申请人： Hyo-Jin Lee ,  Jae-Young Ahn ,  Yong-Soo Cho ,  Kyu-Jin Lee ,  Kyung-Won Park

发明人： Hyo-Jin Lee ,  Jae-Young Ahn ,  Yong-Soo Cho ,  Kyu-Jin Lee ,  Kyung-Won Park

IPC分类号： H04J11/00

CPC分类号： H04B7/068 ,  H04L25/03159 ,  H04L25/03343 ,  H04L27/2602 ,  H04L2025/03414 ,  H04L2025/03522 ,  H04L2025/03605

摘要： Provided are a virtual multi-antenna method for an orthogonal frequency division multiplexing (OFDM) system and an OFDM-based cellular system. The virtual multi-antenna method includes grouping sub-carriers in a frequency domain of an OFDM symbol and generating at least one group including G sub-carriers; and regarding the G sub-carriers included in the at least one group as multiple channels used in a multi-antenna technique and virtually applying the multi-antenna technique to the transmission and reception of the OFDM symbol. The virtual multi-antenna method can effectively reduce an interference signal and obtain the effects of a spatial division multiple access (SDMA) technique without physically using multiple antennas.

摘要翻译： 提供了一种用于正交频分复用（OFDM）系统和基于OFDM的蜂窝系统的虚拟多天线方法。 虚拟多天线方法包括在OFDM符号的频域中分组子载波并且生成包括G个子载波的至少一个组; 并且将包括在至少一个组中的G个子载波作为在多天线技术中使用的多个信道，并将多天线技术虚拟地应用于OFDM符号的发送和接收。 虚拟多天线方法可以有效地减少干扰信号并获得空分多址（SDMA）技术的效果，而无需物理上使用多个天线。

公开(公告)号：US20100240207A1

公开(公告)日：2010-09-23

申请号：US12726014

申请日：2010-03-17

申请人： Young-Geun Park ,  Jae-Young Ahn ,  Jun-Kyu Yang ,  Dong-Woon Shin

发明人： Young-Geun Park ,  Jae-Young Ahn ,  Jun-Kyu Yang ,  Dong-Woon Shin

IPC分类号： H01L21/8246

CPC分类号： H01L27/11568 ,  H01L27/11521

摘要： Manufacturing of a charge trap type memory device can include forming a tunnel insulating layer on a substrate. A charge-trapping layer can be formed on the tunnel insulating layer. A blocking layer can be formed on the charge-trapping layer. Gate electrodes can be formed on the blocking layer and divided by a trench. A portion of the charge-trapping layer aligned with the trench may be converted into a charge-blocking pattern with a vertical side profile by an anisotropic oxidation process.

摘要翻译： 电荷阱型存储器件的制造可以包括在衬底上形成隧道绝缘层。 电荷捕获层可以形成在隧道绝缘层上。 可以在电荷捕获层上形成阻挡层。 栅电极可以形成在阻挡层上并被沟槽分隔。 与沟槽对准的电荷俘获层的一部分可以通过各向异性氧化工艺转变成具有垂直侧面轮廓的电荷阻挡图案。

公开(公告)号：US07764593B2

公开(公告)日：2010-07-27

申请号：US10577034

申请日：2003-11-19

申请人： Kwang-Soon Kim ,  Jae-Young Ahn ,  Yong Soo Cho ,  Dong-Han Kim

发明人： Kwang-Soon Kim ,  Jae-Young Ahn ,  Yong Soo Cho ,  Dong-Han Kim

IPC分类号： H04J11/00

CPC分类号： H04J11/0069 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2656 ,  H04L27/2659 ,  H04L27/266 ,  H04L27/2663 ,  H04L27/2665 ,  H04L27/2675 ,  H04L27/2678

摘要： Disclosed is a downlink signal configuring method and device, and synchronization and cell search method and device using the same in a mobile communication system. A downlink frame has plural symbols into which pilot subcarriers are distributively arranged with respect to time and frequency axes. Initial symbol synchronization and initial frequency synchronization are estimated by using a position at which autocorrelation of a cyclic prefix of a downlink signal and a valid symbol of the downlink is maximized, and cell search and integer-times frequency synchronization are estimated by using pilot subcarriers included in the estimated symbol. Fine symbol synchronization, fine frequency synchronization, and downlink frame synchronization is estimated by using an estimated cell search result. Downlink frequency and time tracking is performed, cell tracking is performed by using a position set of pilot subcarriers inserted into the downlink frame, fine symbol synchronization tracking and fine frequency synchronization tracking are repeated by using the pilot subcarriers to perform the frequency and time tracking of the downlink frame.

摘要翻译： 公开了一种下行链路信号配置方法和装置，以及在移动通信系统中使用其的同步和小区搜索方法及装置。 下行链路帧具有多个符号，导频子载波相对于时间轴和频率轴分布布置在其中。 通过使用下行链路信号的循环前缀和下行链路的有效符号的自相关被最大化的位置来估计初始符号同步和初始频率同步，并且通过使用包括的导频子载波来估计小区搜索和整数倍的频率同步 在估计的符号。 通过使用估计的小区搜索结果来估计精细符号同步，精细频率同步和下行链路帧同步。 执行下行链路频率和时间跟踪，通过使用插入到下行链路帧中的导频子载波的位置集来执行小区跟踪，通过使用导频子载波来重复精细符号同步跟踪和精细频率同步跟踪，以执行频率和时间跟踪 下行帧。

公开(公告)号：US20080259903A1

公开(公告)日：2008-10-23

申请号：US12214180

申请日：2008-06-16

申请人： Hyoung-Soo Lim ,  Woo-Yong Choi ,  Yong-Sun Kim ,  Jae-Young Ahn

发明人： Hyoung-Soo Lim ,  Woo-Yong Choi ,  Yong-Sun Kim ,  Jae-Young Ahn

IPC分类号： H04J3/26

CPC分类号： H04W76/021 ,  H04L1/0001 ,  H04L1/0083 ,  H04L1/1621 ,  H04L1/1664 ,  H04L5/023 ,  H04L27/2601 ,  H04L27/2608 ,  H04L2001/0093 ,  H04W8/26 ,  H04W28/04 ,  H04W72/042 ,  H04W72/0453 ,  H04W76/10 ,  H04W76/11 ,  H04W76/30

摘要： The MAC frame in a wireless communication system includes a terminal ID allocated to each of multiple terminals. At least one connection ID is allocated to each terminal having the terminal ID, and sub-carrier allocation information is allocated to each connection having the connection ID. The sub-carrier allocation information includes a sub-carrier allocation status for each sub-carrier, and the number of allocated information bits for each sub-carrier. The sub-carrier allocation status and the number of allocated information bits for each sub-carrier can be allocated, by sub-carriers, to the sub-carrier allocation information using a same number of bits; or the information on the sub-carrier allocation status is first allocated to the sub-carrier allocation information and the number of allocated information bits for each sub-carrier is allocated.

公开(公告)号：US07308033B2

公开(公告)日：2007-12-11

申请号：US10407785

申请日：2003-04-03

申请人： Hee-Jung Yu ,  Jae-Young Ahn

发明人： Hee-Jung Yu ,  Jae-Young Ahn

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04L25/03159 ,  H04L25/0232 ,  H04L2025/03375 ,  H04L2025/03522 ,  H04L2027/0042

摘要： A method for tracking a residual frequency offset for a single carrier-frequency domain equalizer system includes: determining a pilot from the data and known pilot data, adding the determined pilot to the leading part of the data, copying a part of the frame of the data after a block and adding it before the block, and generating a preamble to construct one frame; eliminating a cyclic prefix, processing signals per an FFT block, extracting the preamble, and performing an initial channel estimation; updating a channel estimation, performing channel compensation, receiving a pilot, calculating an average phase of all the pilots in one FFT block, updating the channel estimation, performing an IFFT operation, extracting data, and recovering the original digital signal from the data.

摘要翻译： 一种用于跟踪单载波频域均衡器系统的残余频率偏移的方法包括：根据数据和已知的导频数据确定导频，将所确定的导频与数据的前导部分相加，复制一部分帧 块之后的数据并将其添加到块之前，并且生成前导码以构造一个帧; 消除循环前缀，每个FFT块处理信号，提取前导码，以及执行初始信道估计; 更新信道估计，执行信道补偿，接收导频，计算一个FFT块中所有导频的平均相位，更新信道估计，执行IFFT操作，提取数据以及从数据中恢复原始数字信号。

公开(公告)号：US20050135497A1

公开(公告)日：2005-06-23

申请号：US10848921

申请日：2004-05-19

申请人： Kwang-Soon Kim ,  Yun-Hee Kim ,  Jae-Young Ahn

发明人： Kwang-Soon Kim ,  Yun-Hee Kim ,  Jae-Young Ahn

IPC分类号： H04J11/00 ,  H04B7/005 ,  H04B7/06 ,  H04L1/00 ,  H04L1/02 ,  H04L1/06

CPC分类号： H04L1/0026 ,  H04B7/0626 ,  H04B7/066 ,  H04L1/0693 ,  H04W52/241 ,  H04W52/247

摘要： Disclosed is an adaptive transmitting and receiving device and method using frequency division duplexing. A transmitter transmits a preamble or a pilot to a receiver. The receiver estimates a received SNR from the preamble or pilot, determines parameters (received log likelihood ratio parameters) of determining the distribution of the received log likelihood ratio, and feeds them back to the transmitter. The transmitter adaptively determines an antenna method, a modulation method, and a transmit power according to the parameters, and adaptively transmits traffic data to the receiver according to the determined antenna method, the modulation method, and the transmit power.

摘要翻译： 公开了一种使用频分双工的自适应发射和接收装置和方法。 发射机向接收机发射前导码或导频。 接收机估计来自前置码或导频的接收到的SNR，确定确定接收到的对数似然比的分布的参数（接收对数似然比参数），并将其馈送给发射机。 发射机根据参数自适应地确定天线方法，调制方式和发射功率，并根据确定的天线方法，调制方式和发射功率自适应地将业务数据发送到接收机。