公开(公告)号：US08165069B2

公开(公告)日：2012-04-24

申请号：US12516068

申请日：2007-06-25

申请人： Young-Jin Moon ,  Young-Il Kim

发明人： Young-Jin Moon ,  Young-Il Kim

IPC分类号： H04W4/00 ,  H04J11/00

CPC分类号： H04L27/2655 ,  H04L27/2675 ,  H04L27/2685

摘要： The present invention relates to a fast uplink ranging system and method in a mobile communication system. According to the present invention, a fast uplink ranging system transmits two pairs of ranging codes having the same value at locations spaced by half of FFT pointers. The fast uplink ranging system calculates a correlation value using the received two pairs of ranging codes. An order in which complex exponential twiddle factors for removing complex exponential terms corresponding to a time delay are searched is determined using the correlation value. Therefore, it is possible to reduce a time required for searching a timing error of a terminal using non-periodic symmetry of complex exponential twiddle factors corresponding to the timing error, compared with a known method of searching a complex exponential twiddle factor.

摘要翻译： 本发明涉及移动通信系统中的快速上行链路测距系统和方法。 根据本发明，快速上行链路测距系统在间隔一半FFT指针的位置发送具有相同值的两对测距码。 快速上行链路测距系统使用接收到的两对测距码来计算相关值。 使用相关值来确定用于去除与时间延迟相对应的复指数项的复指数旋转因子的顺序。 因此，与已知的搜索复指数旋转因子的方法相比，可以减少使用与定时误差相对应的复指数旋转因子的非周期对称来搜索终端的定时误差所需的时间。

公开(公告)号：US20100046431A1

公开(公告)日：2010-02-25

申请号：US12516068

申请日：2007-06-25

申请人： Young-Jin Moon ,  Young-Il Kim

发明人： Young-Jin Moon ,  Young-Il Kim

IPC分类号： H04W4/00

CPC分类号： H04L27/2655 ,  H04L27/2675 ,  H04L27/2685

摘要： The present invention relates to a fast uplink ranging system and method in a mobile communication system. According to the present invention, a fast uplink ranging system transmits two pairs of ranging codes having the same value at locations spaced by half of FFT pointers. The fast uplink ranging system calculates a correlation value using the received two pairs of ranging codes. An order in which complex exponential twiddle factors for removing complex exponential terms corresponding to a time delay are searched is determined using the correlation value. Therefore, it is possible to reduce a time required for searching a timing error of a terminal using non-periodic symmetry of complex exponential twiddle factors corresponding to the timing error, compared with a known method of searching a complex exponential twiddle factor.

摘要翻译： 本发明涉及移动通信系统中的快速上行链路测距系统和方法。 根据本发明，快速上行链路测距系统在间隔一半FFT指针的位置发送具有相同值的两对测距码。 快速上行链路测距系统使用接收到的两对测距码来计算相关值。 使用相关值来确定用于去除与时间延迟相对应的复指数项的复指数旋转因子的顺序。 因此，与已知的搜索复指数旋转因子的方法相比，可以减少使用与定时误差相对应的复指数旋转因子的非周期对称来搜索终端的定时误差所需的时间。

公开(公告)号：US08345788B2

公开(公告)日：2013-01-01

申请号：US12631426

申请日：2009-12-04

申请人： Young Jin Moon ,  Young-Il Kim ,  Kan Zheng ,  Wenbo Wang

发明人： Young Jin Moon ,  Young-Il Kim ,  Kan Zheng ,  Wenbo Wang

IPC分类号： H04B7/02 ,  H04K3/00

CPC分类号： H04B7/086 ,  H04J11/0043 ,  H04L25/0204 ,  H04L25/021 ,  H04L25/0248 ,  H04L25/067

摘要： In a method for detecting a signal in a multi-input multi-output wireless communication system that receives signals transmitted through a plurality of transmission antennas by using a plurality of reception antennas, a detection order for detecting the transmission signals received through the reception antennas is determined on the basis of a cofactor determinant of components constituting a channel matrix representing characteristics of channels between the transmission antennas and the reception antennas. In addition, the transmission signal is detected from the signals received through the reception antennas in accordance with the determined detection order.

摘要翻译： 在通过使用多个接收天线接收通过多个发送天线发送的信号的多输入多输出无线通信系统中的信号检测方法中，检测通过接收天线接收的发送信号的检测顺序是 基于构成表示发送天线和接收天线之间的信道的特性的信道矩阵的分量的辅因子行列式确定。 此外，根据确定的检测顺序，从通过接收天线接收的信号检测发送信号。

公开(公告)号：US20100144302A1

公开(公告)日：2010-06-10

申请号：US12631426

申请日：2009-12-04

申请人： Young Jin Moon ,  Young-Il Kim ,  Kan Zheng ,  Wenbo Wang

发明人： Young Jin Moon ,  Young-Il Kim ,  Kan Zheng ,  Wenbo Wang

IPC分类号： H04B1/06

CPC分类号： H04B7/086 ,  H04J11/0043 ,  H04L25/0204 ,  H04L25/021 ,  H04L25/0248 ,  H04L25/067

摘要： In a method for detecting a signal in a multi-input multi-output wireless communication system that receives signals transmitted through a plurality of transmission antennas by using a plurality of reception antennas, a detection order for detecting the transmission signals received through the reception antennas is determined on the basis of a cofactor determinant of components constituting a channel matrix representing characteristics of channels between the transmission antennas and the reception antennas. In addition, the transmission signal is detected from the signals received through the reception antennas in accordance with the determined detection order.

摘要翻译： 在通过使用多个接收天线接收通过多个发送天线发送的信号的多输入多输出无线通信系统中的信号检测方法中，检测通过接收天线接收的发送信号的检测顺序是 基于构成表示发送天线和接收天线之间的信道的特性的信道矩阵的分量的辅因子行列式确定。 此外，根据确定的检测顺序，从通过接收天线接收的信号检测发送信号。

公开(公告)号：US20100011046A1

公开(公告)日：2010-01-14

申请号：US12517781

申请日：2007-06-18

申请人： Young-Jin Moon ,  Hyun-Jae Kim ,  Ki-Seok Kim ,  Young-Il Kim

发明人： Young-Jin Moon ,  Hyun-Jae Kim ,  Ki-Seok Kim ,  Young-Il Kim

IPC分类号： G06F17/14

CPC分类号： G06F17/142

摘要： The present invention relates to an apparatus and method for variable fast Fourier transform. According to an embodiment of the present invention, two n-point fast Fourier transform (FFT) processors are used to generate two n-point FFT output data or one 2n-point FFT output data. The one 2n-point input data is alternately input to the two n-point FFT processors. Each of the two n-point FFT processors selects a twiddle factor for the n-point input data or the 2n-point input data and performs fast Fourier transform. A butterfly operation is performed on signals obtained by performing fast Fourier transform on the 2n-point input data signal, and the processed signals are aligned in an output order. According to this structure, it is possible to realize a fast Fourier transform hardware engine that selectively performs multi-frequency allocation in a base station system that supports the multi-frequency allocation.

摘要翻译： 本发明涉及一种用于可变快速傅里叶变换的装置和方法。 根据本发明的实施例，使用两个n点快速傅里叶变换（FFT）处理器来产生两个n点FFT输出数据或一个2n点FFT输出数据。 一个2n点输入数据交替地输入到两个n点FFT处理器。 两个n点FFT处理器中的每一个为n点输入数据或2n点输入数据选择旋转因子，并执行快速傅里叶变换。 对通过对2n点输入数据信号执行快速傅里叶变换获得的信号执行蝶形运算，并且处理的信号以输出顺序对准。 根据该结构，能够实现在支持多频分配的基站系统中选择性地进行多频分配的快速傅里叶变换硬件引擎。

公开(公告)号：US08973060B2

公开(公告)日：2015-03-03

申请号：US13289412

申请日：2011-11-04

申请人： Young-Il Kim

发明人： Young-Il Kim

IPC分类号： H04N7/20 ,  H04B7/155 ,  H04W88/04

CPC分类号： H04B7/1555 ,  H04W88/04

摘要： There is provided a method where a terminal amplifies an MBS signal that the terminal receives using a terminal in an MBS service, transmits the amplified signal to another terminal and controls it in order to overcome the fact it is not possible to provide high quality contents over a broad area due to interference signals between MBS zones, a terminal is used as a repeater at MBS transmission time only, and an output of a repeating signal of the terminal is controlled so that an excessive interference signal for another MBS area is not generated when the terminal operates as a repeater.

摘要翻译： 提供了一种方法，其中终端放大终端在MBS服务中接收的MBS信号，将放大的信号发送到另一终端并进行控制，以克服不可能提供高质量内容的事实 由于MBS区域之间的干扰信号引起的广泛区域，仅在MBS传输时间将终端用作中继器，并且控制终端的重复信号的输出，使得对于另一个MBS区域的过多的干扰信号不被产生， 终端作为中继器运行。

公开(公告)号：US08576726B2

公开(公告)日：2013-11-05

申请号：US12735166

申请日：2008-10-13

申请人： Seung Kwon Cho ,  Jung Hoon Oh ,  Su Chang Chae ,  Young-Il Kim

发明人： Seung Kwon Cho ,  Jung Hoon Oh ,  Su Chang Chae ,  Young-Il Kim

IPC分类号： G01R31/06

CPC分类号： H04W72/1289 ,  Y02D70/146

摘要： A communication method according to the present invention includes receiving MAP in formation, acquiring an initial scheduled frame number and a current frame number from the MAP information, calculating the difference between the initial scheduled frame number and the current frame number, comparing the difference between the initial scheduled frame number and the current frame number with a reference value and setting a scheduled frame number, and performing transmission or reception in the scheduled frame. Therefore, even though a MAP loss occurs, the mobile station can receive only downlink data effective in downlink, thereby reducing power consumption for unnecessary reception, and can exactly perform transmission in a frame in which it should transmit in uplink.

摘要翻译： 根据本发明的通信方法包括：接收MAP，从MAP信息中获取初始调度帧号和当前帧号，计算初始调度帧号与当前帧号之间的差值， 初始调度帧号和具有参考值的当前帧号，并设置调度帧号，并在调度帧中执行发送或接收。 因此，即使发生MAP丢失，移动台也可以只接收下行链路中有效的下行链路数据，从而减少不必要的接收的功耗，能够在上行链路中发送的帧中正确地进行发送。

公开(公告)号：US08542624B2

公开(公告)日：2013-09-24

申请号：US12808824

申请日：2008-09-16

申请人： Su Chang Chae ,  Seung Kwon Cho ,  Young-Il Kim

发明人： Su Chang Chae ,  Seung Kwon Cho ,  Young-Il Kim

IPC分类号： H04B7/14

CPC分类号： H04L25/24 ,  H04L1/0003 ,  H04L1/0056 ,  H04L27/0008 ,  H04L27/34 ,  H04L2001/0097

摘要： A method of transmitting a signal according to the present invention includes: receiving a signal that is encoded with a predetermined code rate and that is modulated by a first modulation method from a base station; creating a signal that is obtained by demodulating the signal that is modulated by the first modulation method using a method corresponding to the first modulation method; creating a signal that is obtained by modulating the demodulated signal using a second modulation method while maintaining the predetermined code rate; and transmitting the signal that is modulated by the second modulation to a mobile station.Therefore, it is possible to reduce the cost of the relay station and simplify the system of the relay station. Further, during the modulation and demodulation, the symbol offset is changed to create various modulated and demodulated signals.

摘要翻译： 根据本发明的发送信号的方法包括：从基站接收以预定码率编码并由第一调制方法调制的信号; 创建通过使用对应于第一调制方法的方法解调由第一调制方法调制的信号而获得的信号; 创建通过使用第二调制方法调制解调信号而获得的信号，同时保持预定码率; 以及将由所述第二调制调制的信号发送到移动台。 因此，可以降低中继站的成本并简化中继站的系统。 此外，在调制和解调期间，改变符号偏移以产生各种调制和解调的信号。

公开(公告)号：US08373815B2

公开(公告)日：2013-02-12

申请号：US12919949

申请日：2009-02-27

申请人： Yong-Shig Shim ,  Young-Il Kim ,  Jeong-Ho Park

发明人： Yong-Shig Shim ,  Young-Il Kim ,  Jeong-Ho Park

IPC分类号： G02F1/1335

CPC分类号： G02B5/045 ,  G02F2001/133607

摘要： An optical sheet and a Liquid Crystal Display (LCD) incorporating the same. The LCD includes a sheet-like transparent substrate made of a transparent material and a microscopic structure layer formed on one surface of the transparent substrate. The microscopic structure layer has an array of microscopic structures to emit light. A liquid crystal panel is formed above the microscopic structure layer, and has defined therein a plurality of pixels to display an image. When seen from above the transparent substrate, at least a portion of the microscopic structures has parallel and non-parallel arrangements repeated one or more times in a longitudinal direction thereof with respect to one side-edge of the pixels of the liquid crystal panel.

摘要翻译： 光学片和包含该光学片的液晶显示器（LCD）。 LCD包括由透明材料制成的片状透明基板和形成在透明基板的一个表面上的微观结构层。 微观结构层具有发光的微观结构阵列。 在微观结构层上方形成液晶面板，并在其中限定了多个像素以显示图像。 当从透明基板的上方观察时，至少一部分微观结构具有相对于液晶面板的像素的一个侧边在其纵向上重复一次或多次的平行和非平行布置。

公开(公告)号：US20120112388A1

公开(公告)日：2012-05-10

申请号：US13383720

申请日：2010-07-13

申请人： Young-Il Kim

发明人： Young-Il Kim

IPC分类号： B29C67/20 ,  C01B33/152

CPC分类号： C01B33/159

摘要： A method of manufacturing a hydrophobic aerogel using a process of reforming a wet gel into a hydrophobic aerogel by a generally known normal temperature and pressure method, including: directly providing a reticular basket in a reactor; introducing a wet gel into the basket; providing an ultrasonic generator under the reactor to emit ultrasonic waves; and providing a nitrogen injection unit under the ultrasonic generator to inject nitrogen into the reactor upwards, thereby accelerating a reaction. An apparatus for manufacturing a hydrophobic aerogel, including: a reactor for reforming a wet gel into a hydrophobic gel, the reactor being provided therein with a support to allow a basket to be disposed therein, an ultrasonic generator which is provided under the reactor; and a nitrogen injection unit which is provided under the ultrasonic generator.

摘要翻译： 一种使用通常已知的常温常压法将湿凝胶重整成疏水性气凝胶的方法制造疏水性气凝胶的方法，包括：在反应器中直接提供网状篮; 将湿凝胶引入篮中; 在反应器下方提供超声波发生器以发射超声波; 并在超声波发生器下方提供氮气注入单元，向上注入氮气，从而加速反应。 一种用于制造疏水性气凝胶的装置，包括：用于将湿凝胶重整成疏水凝胶的反应器，所述反应器在其中设置有支撑件以允许将篮子放置在其中;超声波发生器，设置在所述反应器下方; 以及设置在超声波发生器下方的氮气喷射单元。