公开(公告)号：US07721179B2

公开(公告)日：2010-05-18

申请号：US11226385

申请日：2005-09-15

申请人： Young-Bum Kim ,  Seung-Hoon Choi ,  Sung-Eun Park ,  Ju-Ho Lee ,  Jae-Yoel Kim ,  Joon-Young Cho ,  Dong-Seek Park

发明人： Young-Bum Kim ,  Seung-Hoon Choi ,  Sung-Eun Park ,  Ju-Ho Lee ,  Jae-Yoel Kim ,  Joon-Young Cho ,  Dong-Seek Park

IPC分类号： H03M13/00

CPC分类号： H04L1/0057 ,  H04L1/0041 ,  H04L1/0068 ,  H04L1/007 ,  H04L1/08 ,  H04L1/1812

摘要： A method and apparatus is provided to improve an error correction capability for transmitted information, thereby reducing bit error rate and block error rate, and improving the reliability. The method and apparatus can generate error correcting codes having a good minimum distance characteristic, and which can achieve soft decision decoding and reduce the quantity of calculations for the decoding by using an IFHT decoder. Also, the method and apparatus can perform decoding while improving the error correcting capability of particular bits.

摘要翻译： 提供了一种提高发送信息的纠错能力的方法和装置，从而降低了误码率和块错误率，提高了可靠性。 该方法和装置可以产生具有良好的最小距离特性的纠错码，并且可以通过使用IFHT解码器来实现软判决解码并减少用于解码的计算量。 此外，该方法和装置可以在提高特定比特的纠错能力的同时进行解码。

公开(公告)号：US20100054755A1

公开(公告)日：2010-03-04

申请号：US12551955

申请日：2009-09-01

申请人： Hyuk-Choon KWON ,  Eun-Tae WON ,  Tae-Han BAE ,  Jae-Seung SON ,  Dong-Seek PARK

发明人： Hyuk-Choon KWON ,  Eun-Tae WON ,  Tae-Han BAE ,  Jae-Seung SON ,  Dong-Seek PARK

IPC分类号： H04B10/00

CPC分类号： H04B10/2587 ,  H04B10/1143 ,  H04B10/116

摘要： An optical communication apparatus includes an optical signal transmitting unit to output an optical signal; an optical signal receiving unit to receive an optical signal; a retro-reflector to retro-reflect the received optical signal in a direction opposite to an incident angle of the received optical signal; and a control unit to direct the retro-reflector to receive the optical signal and to retro-reflect a response signal, which includes the received optical signal and data to be transmitted, in response to the received optical signal.

摘要翻译： 光通信装置包括：光信号发送单元，输出光信号; 光信号接收单元，用于接收光信号; 后向反射器，以与所接收的光信号的入射角相反的方向对接收到的光信号进行反射; 以及控制单元，用于响应于所接收的光信号，引导后向反射器接收光信号并且反射包括所接收的光信号和要发送的数据的响应信号。

公开(公告)号：US07664192B2

公开(公告)日：2010-02-16

申请号：US11247787

申请日：2005-10-11

申请人： Sung-Ryul Yun ,  Chan-Byoung Chae ,  Hong-Sil Jeong ,  Dong-Seek Park ,  Won-Il Roh ,  Jae-Yoel Kim ,  Pan-Yuh Joo ,  Jeong-Tae Oh ,  Kyun-Byoung Ko

发明人： Sung-Ryul Yun ,  Chan-Byoung Chae ,  Hong-Sil Jeong ,  Dong-Seek Park ,  Won-Il Roh ,  Jae-Yoel Kim ,  Pan-Yuh Joo ,  Jeong-Tae Oh ,  Kyun-Byoung Ko

IPC分类号： H04B7/02

CPC分类号： H04B7/068 ,  H04B7/0848 ,  H04B7/0854 ,  H04L1/0606 ,  H04L1/0668 ,  H04L27/2615 ,  H04L27/2628 ,  H04L27/265

摘要： A transmitter for minimizing a PAPR in OFDM communication system. The transmitter includes: a precoder for coding input symbols so that a signal rotation is generated, and generating a complex vector including the coded symbols; an encoder for performing a frequency-space mapping for the symbols generated as the complex vector according to a predetermined scheme; a random mapper for randomly mapping the symbols for which the frequency-space mapping has been performed on a frequency plane through at least one transmit antenna; an Inverse Fast Fourier Transform (IFFT) unit for performing an IFFT for the symbols for which the frequency-space mapping has been performed; and a gradient algorithm unit for receiving IFFTed signals from the IFFT unit and reducing the PAPR.

摘要翻译： 用于最小化OFDM通信系统中的PAPR的发射机。 发射机包括：预编码器，用于对输入符号进行编码，从而产生信号旋转，并产生包括编码符号的复矢量; 编码器，用于根据预定方案对作为所述复矢量生成的符号执行频率 - 空间映射; 随机映射器，用于通过至少一个发射天线在频率平面上随机映射已经对其进行频率 - 空间映射的符号; 用于对已经执行了频率 - 空间映射的符号执行IFFT的逆快速傅里叶变换（IFFT）单元; 以及用于从IFFT单元接收IFFT信号并减少PAPR的梯度算法单元。

公开(公告)号：US07616661B2

公开(公告)日：2009-11-10

申请号：US09751848

申请日：2001-01-02

申请人： Jeong-hoon Park ,  Yung-lyul Lee ,  Dong-seek Park ,  Dae-gyu Bae ,  In-hwan Kim

发明人： Jeong-hoon Park ,  Yung-lyul Lee ,  Dong-seek Park ,  Dae-gyu Bae ,  In-hwan Kim

IPC分类号： H04J3/24

CPC分类号： H04L69/16 ,  H04L1/16 ,  H04L29/06027 ,  H04L65/607 ,  H04L65/608 ,  H04L69/161 ,  H04L69/163 ,  H04L69/164 ,  H04L69/22 ,  H04L69/324 ,  H04N7/17318 ,  H04N21/234327 ,  H04N21/6125 ,  H04N21/6131 ,  H04N21/6375 ,  H04N21/64322 ,  H04N21/6437 ,  H04N21/64707

摘要： An apparatus and method of transceiving a bit stream, by which a video bit stream is stably transmitted by the effective use of two logic channels when communication is established by the two logic channels during transmission of the video bit stream in a communication network, is provided. In this method, a source is encoded into a bit stream using a predetermined type of coding. Then, the encoded bit stream is transmitted to each communication protocol layer, while the header of each communication protocol layer is added to a payload. The header is transmitted separately from the bit stream.

摘要翻译： 提供了一种收发比特流的装置和方法，通过该比特流，在通信网络中的视频比特流的传输期间通过两个逻辑信道建立通信时，通过有效使用两个逻辑信道来稳定地发送视频比特流 。 在该方法中，使用预定类型的编码将源编码为比特流。 然后，将编码比特流发送到每个通信协议层，同时将每个通信协议层的报头添加到有效载荷。 报头与位流分开传送。

公开(公告)号：US07600174B2

公开(公告)日：2009-10-06

申请号：US11201663

申请日：2005-08-10

申请人： Gyu-Bum Kyung ,  Hong-Sil Jeong ,  Dong-Seek Park ,  Jae-Yoel Kim

发明人： Gyu-Bum Kyung ,  Hong-Sil Jeong ,  Dong-Seek Park ,  Jae-Yoel Kim

IPC分类号： H03M13/00

CPC分类号： H03M13/116 ,  H03M13/1134 ,  H03M13/118 ,  H03M13/1182 ,  H03M13/1185 ,  H03M13/1188 ,  H03M13/6356 ,  H03M13/6362 ,  H04L1/005 ,  H04L1/0057

摘要： Apparatus and method for coding a block low density parity check (LDPC) code. Upon receiving an information word vector, an encoder codes the information word vector into a block LDPC code according to a predetermined generation matrix. A modulator modulates the block LDPC code into a modulation symbol using a predetermined modulation scheme. A transmitter transmits the modulation symbol.

摘要翻译： 用于编码块低密度奇偶校验（LDPC）码的装置和方法。 在接收到信息字矢量时，编码器根据预定的生成矩阵将信息字矢量编码成块LDPC码。 调制器使用预定的调制方案将块LDPC码调制成调制符号。 发射机发送调制符号。

公开(公告)号：US20090225714A1

公开(公告)日：2009-09-10

申请号：US12381250

申请日：2009-03-10

申请人： Tae-Young Kim ,  Jeong-Ho Park ,  Dong-Seek Park ,  Hee-Won Kang ,  Ho-Kyu Choi ,  Jae-Weon Cho ,  Hyun-Kyu Yu ,  Su-Ryong Jeong

发明人： Tae-Young Kim ,  Jeong-Ho Park ,  Dong-Seek Park ,  Hee-Won Kang ,  Ho-Kyu Choi ,  Jae-Weon Cho ,  Hyun-Kyu Yu ,  Su-Ryong Jeong

IPC分类号： H04W72/04 ,  H04B7/02

CPC分类号： H04B7/12 ,  H04L5/0039 ,  H04L5/0041 ,  H04L5/0044 ,  H04L27/2602 ,  H04W72/04

摘要： An apparatus and a method for composing a subchannel in a wireless communication system are provided. The method includes performing a subband-based permutation on resources for composing a subchannel; selecting one or more subbands as resources for a band selection subchannel from the resources passing through the subband-based permutation; composing the band selection subchannel using at least one of the selected subbands; performing a resource allocation unit based permutation on resources not selected for the band selection subchannel; composing a resource allocation unit based diversity subchannel using subband remained in the selected subbands after the band selection subchannel is composed and at least one of the resource allocation units of the resources passing through the resource allocation unit based permutation; and composing a tone-based diversity subchannel by performing a tone-based permutation on resources remained after the resource allocation unit based diversity subchannel is composed.

摘要翻译： 提供了一种用于在无线通信系统中组成子信道的装置和方法。 该方法包括对用于构成子信道的资源执行基于子带的置换; 从经过基于子带的排列的资源中选择一个或多个子带作为用于频带选择子信道的资源; 使用所选择的子带中的至少一个来组成所述频带选择子信道; 对未选择用于所述频带选择子信道的资源执行基于资源分配单元的置换; 在组合频带选择子信道之后，使用子带保留在选择的子带中的资源分配单元的分集子信道的组合以及通过基于资源分配单元的排列的资源的资源分配单元中的至少一个; 以及通过对构成基于资源分配单元的分集子信道之后剩余的资源进行基于音调的置换来构成基于音调的分集子信道。

公开(公告)号：US07586846B2

公开(公告)日：2009-09-08

申请号：US11388682

申请日：2006-03-24

申请人： Petar Popovski ,  Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Kathiravetpillai Sivanesan ,  Do-Young Kim ,  Dong-Seek Park ,  Sung-Kwon Hong

发明人： Petar Popovski ,  Hiroyuki Yomo ,  Elisabeth De Carvalho ,  Kathiravetpillai Sivanesan ,  Do-Young Kim ,  Dong-Seek Park ,  Sung-Kwon Hong

IPC分类号： H04L12/26

CPC分类号： H04L1/0033 ,  H04B7/15592 ,  H04L1/0015 ,  H04L1/007 ,  H04L41/509 ,  H04L2001/0097

摘要： A source node of a communication system selects one of a direct mode, a multi-hop mode, and a superposition mode as a transmission mode to be used for signal transmission from the source node to a destination node, taking into account data rates for a link between the source node and the destination node, a link between the source node and a delay node, and a link between the relay node and the destination node, thereby increasing the data rate, i.e., the throughput, of the entire communication system.

摘要翻译： 通信系统的源节点选择直接模式，多跳模式和叠加模式中的一个作为用于从源节点到目的地节点的信号传输的传输模式，考虑到 源节点和目的地节点之间的链路，源节点和延迟节点之间的链路以及中继节点与目的节点之间的链路，从而增加了整个通信系统的数据速率，即吞吐量。

公开(公告)号：US07584401B2

公开(公告)日：2009-09-01

申请号：US11487201

申请日：2006-07-14

申请人： Song-Nam Hong ,  Jung-Soo Woo ,  Seung-Hoon Park ,  Deok-Ki Kim ,  Su-Ryong Jeong ,  Young-Kyun Kim ,  Dong-Seek Park

发明人： Song-Nam Hong ,  Jung-Soo Woo ,  Seung-Hoon Park ,  Deok-Ki Kim ,  Su-Ryong Jeong ,  Young-Kyun Kim ,  Dong-Seek Park

IPC分类号： H03M13/00

CPC分类号： H03M13/11 ,  H03M13/1134 ,  H03M13/1194 ,  H03M13/255 ,  H03M13/27 ,  H03M13/356 ,  H03M13/6362 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0086 ,  H04L1/1812 ,  H04L27/34

摘要： A channel interleaving method and apparatus in a communication system using a low density parity check (LDPC) code. Upon receipt of information data bits, an encoder encodes the information data bits into an LDPC codeword using a predetermined coding scheme. A channel interleaver interleaves the LDPC codeword according to a predetermined channel interleaving rule. A modulator modulates the channel-interleaved LDPC codeword into a modulation symbol using a predetermined modulation scheme.

摘要翻译： 一种使用低密度奇偶校验（LDPC）码的通信系统中的信道交织方法和装置。 在接收到信息数据位时，编码器使用预定的编码方案将信息数据位编码成LDPC码字。 信道交织器根据预定信道交织规则对LDPC码字进行交织。 调制器使用预定的调制方案将信道交织的LDPC码字调制成调制符号。

公开(公告)号：US07583586B2

公开(公告)日：2009-09-01

申请号：US11167663

申请日：2005-06-27

申请人： Sung-Eun Park ,  Seung-Hoon Choi ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Ji-Ho Jang ,  Pan-Yuh Joo

发明人： Sung-Eun Park ,  Seung-Hoon Choi ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Ji-Ho Jang ,  Pan-Yuh Joo

IPC分类号： H04J11/00

CPC分类号： H04L5/0048 ,  H04B2201/70701 ,  H04B2201/709709 ,  H04J13/0048 ,  H04J13/16 ,  H04L5/0023 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2655

摘要： Disclosed is a method for transmitting a reference signal for identification of each cell in a communication system including a plurality of cells each of which is identified by a cell identifier. The method includes receiving a cell identifier, and generating a block code corresponding to the cell identifier using a predetermined block code generator matrix, and generating a first part sequence using the block code; selecting a second part sequence in accordance with the cell identifier; generating a reference signal of a frequency domain using the first part sequence and the second part sequence; converting the reference signal of the frequency domain to a reference signal of a time domain through an Inverse Fast Fourier Transform operation and transmitting the reference signal of the time domain in a predetermined reference signal transmission interval.

摘要翻译： 公开了一种在通信系统中发送用于识别每个小区的参考信号的方法，该通信系统包括多个小区，每个小区由小区标识符标识。 该方法包括接收小区标识符，并使用预定的块码发生器矩阵生成与该小区标识符相对应的块码，并使用块码生成第一部分序列; 根据小区标识符选择第二部分序列; 使用所述第一部分序列和所述第二部分序列生成频域的参考信号; 通过反傅立叶逆变换操作将频域的参考信号转换为时域的参考信号，并以预定的参考信号传输间隔发射时域的参考信号。

公开(公告)号：US07558293B2

公开(公告)日：2009-07-07

申请号：US11213518

申请日：2005-08-26

申请人： Seung-Hoon Choi ,  Sung-Eun Park ,  Jae-Yoel Kim ,  Dong-Seek Park

发明人： Seung-Hoon Choi ,  Sung-Eun Park ,  Jae-Yoel Kim ,  Dong-Seek Park

IPC分类号： H04W4/00 ,  H04W36/00 ,  H04J11/00 ,  H04J3/06

CPC分类号： H04L27/261

摘要： Disclosed is a method for detecting an initial operating mode in an OFDMA wireless communication system the method includes receiving from a BS a reference signal having a specific pattern, and detecting an initial operation mode according to the received reference signal.

摘要翻译： 公开了一种在OFDMA无线通信系统中检测初始操作模式的方法，该方法包括从BS接收具有特定模式的参考信号，并根据接收的参考信号检测初始操作模式。