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45 条记录 (耗时 0.019 秒)

    Apparatus and method for generating preamble sequence in an OFDM communication system
    21.
    发明公开
    Apparatus and method for generating preamble sequence in an OFDM communication system 有权
    用于在OFDM通信系统中生成前导序列的设备和方法

    公开(公告)号：EP1424789A1

    公开(公告)日：2004-06-02

    申请号：EP03027287.6

    申请日：2003-11-28

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Suh, Chang-Ho ,  Chae, Chan-Byoung ,  Choi, Ho-Kyu ,  Ro, Jung-Min ,  Joo, Pan-Yuh

    IPC分类号： H04B7/06 ,  H04L27/26

    CPC分类号： H04L27/262 ,  H04L1/0618 ,  H04L27/2613

    摘要： Disclosed is a method for generating a preamble sequence to decrease a peak-to-average power ratio (PAPR) through at least two antennas in an orthogonal frequency division multiplexing (OFDM) communication system. The method comprises generating a first preamble sequence in which odd data of the preamble sequence becomes null data and even data of the preamble sequence becomes data, the first preamble sequence being adapted to be transmitted via one of the two antennas; and generating a second preamble sequence in which even data of the preamble sequence becomes null data and odd data of the preamble sequence becomes data, the second preamble sequence being adapted to be transmitted via another one of the two antennas.

    摘要翻译： 公开了一种用于生成前导序列以在正交频分复用（OFDM）通信系统中通过至少两个天线降低峰均功率比（PAPR）的方法。 该方法包括：生成第一前导码序列，其中，前导码序列的奇数据变为空数据，并且前导码序列的偶数据变为数据，第一前导码序列适于通过两个天线中的一个发送; 以及生成第二前导码序列，其中前导码序列的偶数据变为空数据，并且前导码序列的奇数据变为数据，第二前导码序列适于通过两个天线中的另一个发送。

    Method and apparatus for signal transmission in a communication system using an HARQ scheme
    23.
    发明授权
    Method and apparatus for signal transmission in a communication system using an HARQ scheme 有权

    公开(公告)号：EP2091171B1

    公开(公告)日：2018-08-15

    申请号：EP09152426.4

    申请日：2009-02-10

    申请人： Samsung Electronics Co., Ltd.

    发明人： Park, Sung-Eun ,  Choi, Seung-Hoon ,  Hong, Song-Nam ,  Choi, Ho-Kyu ,  Cho, Jae-Weon

    IPC分类号： H04L1/18

    CPC分类号： H04L1/1819 ,  H03M13/116 ,  H03M13/1185 ,  H03M13/6306 ,  H03M13/6393 ,  H04L1/0057 ,  H04L1/0069

    摘要： An apparatus and method for transmitting a signal in a communication system using a Hybrid Automatic Repeat reQuest (HARQ) scheme are provided. The method includes generating a codeword vector by encoding an information vector by using a first parity check matrix of Low Density Parity Check (LDPC) codes, generating a transmission vector by processing the codeword vector, and transmitting the transmission vector. When the first parity check matrix includes a plurality of square matrix columns, each square matrix includes a size of L × L , the first parity check matrix is one of p parity check matrixes stored in the signal transmission apparatus, the p parity check matrixes support different numbers of information vector square matrix columns, and each of the numbers of information vector square matrix columns indicates the number of square matrix columns corresponding to the information vector from among the plurality of square matrix columns. The first parity check matrix is a parity check matrix supporting the number of information vector square matrix columns determined by using the length of the information vector and the value L from the p parity check matrixes, and the value L is determined by using p and the length of the information vector.

    TRANSMISSION APPARATUS AND METHOD FOR USE IN MOBILE COMMUNICATION SYSTEM BASED ON ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SCHEME
    24.
    发明授权
    TRANSMISSION APPARATUS AND METHOD FOR USE IN MOBILE COMMUNICATION SYSTEM BASED ON ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SCHEME 有权

    公开(公告)号：EP1489775B1

    公开(公告)日：2018-05-23

    申请号：EP04014517.9

    申请日：2004-06-21

    申请人： Samsung Electronics Co., Ltd.

    发明人： Cho, Young-Kwon ,  Daniel, Katz Marcos ,  Yoon, Seok, Hyun ,  Park,Dong-Seek ,  Park,Seong-Ill ,  Choi, Ho-Kyu ,  Joo, Pan-Yuh ,  Kim, Young-Kyun ,  Lee, Hyeon-Woo

    IPC分类号： H04L5/00

    CPC分类号： H04L5/006 ,  H04L5/0017 ,  H04L5/0046 ,  H04L5/0048

    摘要： A transmitter for a mobile communication system based on an OFDM scheme and a method for controlling the same. The transmitter can implement a characteristic of a multiple access scheme based on an OFDM scheme, a characteristic of a CDMA scheme, and a characteristic of a frequency hopping scheme which has very strong resistance to the frequency selective fading. An apparatus for transmitting information bit sequences from a BS (Base Station) transmitter to different users, includes a plurality of channelizers for dividing a single frame of information bit sequences to be transmitted to individual users into a plurality of times according to a given time interval, simultaneously transmitting the information bit sequences to the individual users within the plurality of division times, dividing the information bit sequences, spreading the divided information bit sequences using different Walsh codes, converting the spread information bit sequences into a single sequence associated with the individual users, and outputting the single sequence; and a frequency hopper for dividing the single sequence, distributing the spread information bit sequences over a plurality of bandwidths capable of mapping-processing the spread information bit sequences with sub-carrier frequencies, and preventing each of the bandwidths from overlapping with time-frequency cells given by the given time interval.

    Method and apparatus for signal transmission in a communication system using an HARQ scheme
    25.
    发明公开
    Method and apparatus for signal transmission in a communication system using an HARQ scheme 审中-公开
    用于使用HARQ方案的通信系统中的信号传输方法和装置

    公开(公告)号：EP2091171A3

    公开(公告)日：2014-08-27

    申请号：EP09152426.4

    申请日：2009-02-10

    申请人： Samsung Electronics Co., Ltd.

    发明人： Park, Sung-Eun ,  Choi, Seung-Hoon ,  Hong, Song-Nam ,  Choi, Ho-Kyu ,  Cho, Jae-Weon

    IPC分类号： H04L1/18

    CPC分类号： H04L1/1819 ,  H03M13/116 ,  H03M13/1185 ,  H03M13/6306 ,  H03M13/6393 ,  H04L1/0057 ,  H04L1/0069

    摘要： An apparatus and method for transmitting a signal in a communication system using a Hybrid Automatic Repeat reQuest (HARQ) scheme are provided. The method includes generating a codeword vector by encoding an information vector by using a first parity check matrix of Low Density Parity Check (LDPC) codes, generating a transmission vector by processing the codeword vector, and transmitting the transmission vector. When the first parity check matrix includes a plurality of square matrix columns, each square matrix includes a size of L × L , the first parity check matrix is one of p parity check matrixes stored in the signal transmission apparatus, the p parity check matrixes support different numbers of information vector square matrix columns, and each of the numbers of information vector square matrix columns indicates the number of square matrix columns corresponding to the information vector from among the plurality of square matrix columns. The first parity check matrix is a parity check matrix supporting the number of information vector square matrix columns determined by using the length of the information vector and the value L from the p parity check matrixes, and the value L is determined by using p and the length of the information vector.

    摘要翻译： 提供了使用混合自动重复请求（HARQ）方案的通信系统中用于发送信号的装置和方法。 该方法包括：通过编码信息生成的码字矢量通过使用低密度奇偶校验（LDPC）码的第一奇偶校验矩阵，通过处理该码字矢量生成发送向量，和发送发送矢量为矢量。 当第一奇偶校验矩阵包括正方形矩阵列的复数，每个正方形矩阵包括大小为L×L时，第一奇偶校验矩阵是存储在信号发送设备P奇偶校验矩阵之一，所述p的奇偶校验矩阵的支持 不同数量的信息向量方阵列，并且每个信息向量方阵列数的表示方矩阵列从正方形矩阵列的多元性当中对应于信息载体的数量。 第一奇偶校验矩阵是一个奇偶校验矩阵支撑是确定性的，通过使用p和挖掘的信息向量方阵列确定性通过使用信息向量的长度和从p的奇偶校验矩阵的值L，并且L值开采的数量 的矢量信息长度。

    Apparatus and method for transmitting/receiving error detection information in a communication system
    30.
    发明公开
    Apparatus and method for transmitting/receiving error detection information in a communication system 有权
    在通信系统中安排和发送方法/接收错误检测信息

    公开(公告)号：EP1496637A1

    公开(公告)日：2005-01-12

    申请号：EP04024559.9

    申请日：2002-10-29

    申请人： Samsung Electronics Co., Ltd.

    发明人： Kim, Dong Hee ,  Choi, Ho-Kyu ,  Kim, Youn-Sun ,  Kwon, Hwan-Joon

    IPC分类号： H04L1/00

    CPC分类号： H04L1/0057 ,  H04L1/0045 ,  H04L1/0046 ,  H04L1/0059 ,  H04L1/0061 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/08

    摘要： Disclosed is an apparatus for generating an error detection information bit sequence for determining a length of data sequence transmitted in a communication system. The apparatus comprises a plurality of cascaded registers, the number of which is identical to the number of bits in the error detection information bit sequence, and a plurality of adders arranged on paths determined by a predetermined generator polynomial, each of the adders adding a bit sequence received through an input path to a feedback bit sequence. During reception of the control information sequence, an operator generates the feedback bit sequence by sequentially adding bits of the control information sequence to output bits of a final register and provides the generated feedback bit sequence to the adders. After completion of receiving the control information sequence, the operator sequentially adds a preset input bit to output bits of the final register and outputs the addition result as the error detection information bit sequence. An initial value controller provides the registers with a selected one of two initial values separately determined for the two data sequences.

    摘要翻译： 公开了一种用于确定性挖掘数据序列反式的长度在通信系统中mitted错误检测信息比特序列的生成的装置。该装置包括级联的寄存器的复数，所有的数量，其是相同的位的错误检测信息的数量 比特序列，以及布置在一预定的生成多项式开采路径确定性加法器复数，每一加法器增加一个位序列的接收通过输入路径的反馈比特序列。 在控制信息序列的接收，以产生操作速率依次添加控制信息序列的最终寄存器的输出位的位，并提供所产生的反馈比特序列给加法器反馈比特序列。 接收控制信息序列完成之后，操作者顺序地将预先设定的输入位到最终寄存器的输出位，并输出相加结果作为错误检测信息比特序列。 初始值控制器提供与开采所述两个数据序列的两个初始值分别确定所选择的一个的寄存器。