公开(公告)号：US20140079095A1

公开(公告)日：2014-03-20

申请号：US14087756

申请日：2013-11-22

Applicant: FUJITSU LIMITED

Inventor： Yi WANG ,  Yuantao ZHANG ,  Hua ZHOU ,  Jianming WU

IPC: H04B1/707

CPC classification number: H04J13/18 ,  H04B1/707 ,  H04B2201/707 ,  H04J13/004 ,  H04J13/0062 ,  H04J13/12 ,  H04J13/14 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0051 ,  H04L27/2613

Abstract: A code generating apparatus, demodulation reference signal generating apparatus, and methods thereof. The demodulation reference signal generator includes generating a non-correlation sequence for RS of a first resource block; spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a first frequency resource of the first resource block, by using a first group of codes; second spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a second frequency resource of the first resource block, by using a second group of Codes; the first and second frequency resources are adjacent frequency resources in frequency resource elements used for RS transmission in the first resource block, and the first and second groups of Codes are mirrors in column to each other; and mapping the spectrum-spread elements to the first and second frequency resources, respectively.

Abstract translation: 代码生成装置，解调参考信号生成装置及其方法。 解调参考信号发生器包括：生成用于第一资源块的RS的非相关序列; 通过使用第一组代码将用于RS的非相关序列中的元素的扩展频谱映射到第一资源块的第一频率资源; 通过使用第二组代码，RS的非相关序列中的元素的第二扩展频谱被映射到第一资源块的第二频率资源; 第一和第二频率资源是在第一资源块中用于RS传输的频率资源元素中的相邻频率资源，并且第一和第二组代码是彼此列的反射镜; 以及将频谱扩展元件分别映射到第一和第二频率资源。

公开(公告)号：US09825725B2

公开(公告)日：2017-11-21

申请号：US15283794

申请日：2016-10-03

Applicant: FUJITSU LIMITED

Inventor： Yi Wang ,  Yuantao Zhang ,  Hua Zhou ,  Jianming Wu

IPC: H04J13/18 ,  H04J13/00 ,  H04J13/14 ,  H04L5/00 ,  H04L27/26 ,  H04B1/707 ,  H04J13/12

CPC classification number: H04J13/18 ,  H04B1/707 ,  H04B2201/707 ,  H04J13/004 ,  H04J13/0062 ,  H04J13/12 ,  H04J13/14 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0051 ,  H04L27/2613

Abstract: Code generating including generating a non-correlation sequence for RS of a first resource block; spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a first frequency resource of the first resource block, by using a first group of codes; second spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a second frequency resource of the first resource block, by using a second group of Codes; the first and second frequency resources are adjacent frequency resources in frequency resource elements used for RS transmission in the first resource block, and the first and second groups of Codes are mirrors in column to each other; and mapping the spectrum-spread elements to the first and second frequency resources, respectively.

公开(公告)号：US09306619B2

公开(公告)日：2016-04-05

申请号：US14354064

申请日：2011-11-16

Applicant: Robert Gach ,  Dominique Delbecq

Inventor： Robert Gach ,  Dominique Delbecq

IPC: H04B1/709 ,  H04B1/7075 ,  H04B7/08

CPC classification number: H04B1/709 ,  H04B1/7075 ,  H04B7/0802 ,  H04B2201/707

Abstract: A direct-sequence spread spectrum signal receiving device may comprise a receiver unit, a chip sequence generating unit, a correlation unit, and comparison unit. The receiver unit may extract a chip stream from a radio-frequency signal, said chip stream containing a first chip sequence. The chip sequence generating unit may generate a plurality of trial chip sequences on the basis of a first trial chip sequence and on the basis of a plurality of index rotations. The correlation unit may determine a plurality of correlation values on the basis of said plurality of trial chip sequences and on the basis of said first chip sequence, each of said correlation values indicating a degree of correlation between a respective one of said trial chip sequences and said first chip sequence. The comparison unit may determine whether a maximum one of said correlation values exceeds a defined threshold value.

Abstract translation: 直接序列扩频信号接收装置可以包括接收机单元，码片序列生成单元，相关单元和比较单元。 接收机单元可以从射频信号中提取芯片流，所述芯片流包含第一芯片序列。 芯片序列生成单元可以基于第一试验片段序列，并且基于多个索引旋转来生成多个试验片段序列。 所述相关单元可以基于所述多个试用芯片序列来确定多个相关值，并且基于所述第一芯片序列，每个所述相关值指示所述试验芯片序列中的相应一个和 说第一个芯片序列。 比较单元可以确定所述相关值中的最大值是否超过限定的阈值。

公开(公告)号：US20140254637A1

公开(公告)日：2014-09-11

申请号：US14354064

申请日：2011-11-16

Applicant: Robert Gach ,  Dominique Delbecq

Inventor： Robert Gach ,  Dominique Delbecq

IPC: H04B1/709

CPC classification number: H04B1/709 ,  H04B1/7075 ,  H04B7/0802 ,  H04B2201/707

Abstract: A direct-sequence spread spectrum signal receiving device may comprise a receiver unit, a chip sequence generating unit, a correlation unit, and comparison unit. The receiver unit may extract a chip stream from a radio-frequency signal, said chip stream containing a first chip sequence. The chip sequence generating unit may generate a plurality of trial chip sequences on the basis of a first trial chip sequence and on the basis of a plurality of index rotations. The correlation unit may determine a plurality of correlation values on the basis of said plurality of trial chip sequences and on the basis of said first chip sequence, each of said correlation values indicating a degree of correlation between a respective one of said trial chip sequences and said first chip sequence. The comparison unit may determine whether a maximum one of said correlation values exceeds a defined threshold value.

Abstract translation: 直接序列扩频信号接收装置可以包括接收机单元，码片序列生成单元，相关单元和比较单元。 接收机单元可以从射频信号中提取芯片流，所述芯片流包含第一芯片序列。 芯片序列生成单元可以基于第一试验片段序列，并且基于多个索引旋转来生成多个试验片段序列。 所述相关单元可以基于所述多个试用芯片序列来确定多个相关值，并且基于所述第一芯片序列，每个所述相关值指示所述试验芯片序列中的相应一个和 说第一个芯片序列。 比较单元可以确定所述相关值中的最大值是否超过限定的阈值。

公开(公告)号：US08798115B2

公开(公告)日：2014-08-05

申请号：US14087756

申请日：2013-11-22

Applicant: Fujitsu Limited

Inventor： Yi Wang ,  Yuantao Zhang ,  Hua Zhou ,  Jianming Wu

IPC: H04B1/00

CPC classification number: H04J13/18 ,  H04B1/707 ,  H04B2201/707 ,  H04J13/004 ,  H04J13/0062 ,  H04J13/12 ,  H04J13/14 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0051 ,  H04L27/2613

Abstract: A code generating apparatus, demodulation reference signal generating apparatus, and methods thereof. The demodulation reference signal generator includes generating a non-correlation sequence for RS of a first resource block; spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a first frequency resource of the first resource block, by using a first group of codes; second spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a second frequency resource of the first resource block, by using a second group of Codes; the first and second frequency resources are adjacent frequency resources in frequency resource elements used for RS transmission in the first resource block, and the first and second groups of Codes are mirrors in column to each other; and mapping the spectrum-spread elements to the first and second frequency resources, respectively.

Abstract translation: 代码生成装置，解调参考信号生成装置及其方法。 解调参考信号发生器包括：生成用于第一资源块的RS的非相关序列; 通过使用第一组代码将用于RS的非相关序列中的元素的扩展频谱映射到第一资源块的第一频率资源; 通过使用第二组代码，RS的非相关序列中的元素的第二扩展频谱被映射到第一资源块的第二频率资源; 第一和第二频率资源是在第一资源块中用于RS传输的频率资源元素中的相邻频率资源，并且第一和第二组代码是彼此列的反射镜; 以及将频谱扩展元件分别映射到第一和第二频率资源。

公开(公告)号：EP2781031A1

公开(公告)日：2014-09-24

申请号：EP11875670.9

申请日：2011-11-16

Applicant: Freescale Semiconductor, Inc.

Inventor： GACH, Robert ,  DELBECQ, Dominique

IPC: H04B1/707 ,  H04B1/16

CPC classification number: H04B1/709 ,  H04B1/7075 ,  H04B7/0802 ,  H04B2201/707

Abstract: A direct-sequence spread spectrum (DSSS) signal receiving device (10) is described. The device (10) may comprise a receiver unit (22), a chip sequence generating unit (44), a correlation unit (28), and comparison unit (38). The receiver unit (22) may extract, in a detection phase, a chip stream from a radio-frequency signal, said chip stream containing a first chip sequence. The chip sequence generating unit (44) may generate, in said detection phase, a plurality of trial chip sequences on the basis of a first trial chip sequence and on the basis of a plurality of index rotations, each trial chip sequence being index-rotated relative to said first trial chip sequence by one of said index rotations. The correlation unit (28) may determine, in said detection phase, a plurality of correlation values on the basis of said plurality of trial chip sequences and on the basis of said first chip sequence, each of said correlation values indicating a degree of correlation between a respective one of said trial chip sequences and said first chip sequence. The comparison unit (38) may determine, in said detection phase, whether a maximum one of said correlation values exceeds a defined threshold value. A method is also described.

公开(公告)号：EP2523413A1

公开(公告)日：2012-11-14

申请号：EP10841887.2

申请日：2010-01-08

Applicant: Fujitsu Limited

Inventor： WANG, Yi ,  ZHANG, Yuantao ,  ZHOU, Hua ,  WU, Jianming

IPC: H04L27/26

CPC classification number: H04J13/18 ,  H04B1/707 ,  H04B2201/707 ,  H04J13/004 ,  H04J13/0062 ,  H04J13/12 ,  H04J13/14 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0051 ,  H04L27/2613

Abstract: The present invention relates to orthogonal cover code generating apparatus, demodulation reference signal generating apparatus, and methods thereof. The demodulation reference signal generator comprises a non-correlation sequence generator configured to generate a non-correlation sequence for pilot of a first resource block; a first spectrum spreading unit configured to spread spectrums of elements in the non-correlation sequence for pilot to be mapped to a first frequency resource of the first resource block, by using a first group of Orthogonal Cover Codes (OCCs); a second spectrum spreading unit configured to spread spectrums of elements in the non-correlation sequence for pilot to be mapped to a second frequency resource of the first resource block, by using a second group of OCCs; the first and second frequency resources are adjacent frequency resources with respect to a first group of data streams, and the first and second groups of OCCs are mirrors in column to each other; and a mapping unit configured to map the spectrum-spread elements to the first and second frequency resources, respectively. The methods and apparatuses according to the present invention can enhance pilot randomization, remove the problem of pilot transmission power imbalance, and satisfy the requirement on orthogonality at the two dimensions of both time and frequency.

Abstract translation: 本发明涉及正交覆盖码生成装置，解调参考信号生成装置，以及它们的方法。 所述解调参考信号发生器包括被配置为生成用于第一资源块的导频的非相关序列的非相关序列发生器; 配置为传播元件的光谱中用于导频的非相关序列的第一频谱扩展单元被映射到所述第一资源块的第一频率资源，通过使用的正交覆盖码（OCCS）的第一组; 配置为传播元件的光谱中用于导频的非相关序列的第二扩频单元，通过使用OCCS的第二组被映射到所述第一资源块的第二频率资源; 所述第一和第二频率资源是相邻频率资源相对于第一组数据流，和OCCS的第一组和第二组是在柱海誓山盟镜; 和一个映射单元，用于分别对扩频元件与第一和第二频率资源映射。 的方法和装置gemäß到，本发明可以提高导频随机化，取出导频的传输功率不平衡的麻烦，并满足在时间和频率两者的两个维度上的正交性的要求。

公开(公告)号：JP5621855B2

公开(公告)日：2014-11-12

申请号：JP2012547429

申请日：2010-01-08

IPC: H04J11/00 ,  H04W72/04

CPC classification number: H04J13/18 ,  H04B1/707 ,  H04B2201/707 ,  H04J13/004 ,  H04J13/0062 ,  H04J13/12 ,  H04J13/14 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0051 ,  H04L27/2613

公开(公告)号：JP2013516858A

公开(公告)日：2013-05-13

申请号：JP2012547429

申请日：2010-01-08

Applicant: 富士通株式会社

Inventor： ワン・イ ,  ジャン・ユアヌタオ ,  ジョウ・ホア ,  ウー・ジャンミン

IPC: H04J13/12 ,  H04W72/04

CPC classification number: H04J13/18 ,  H04B1/707 ,  H04B2201/707 ,  H04J13/004 ,  H04J13/0062 ,  H04J13/12 ,  H04J13/14 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0051 ,  H04L27/2613

Abstract: 本発明は、直交カバーコード生成装置、復調参照信号生成装置、及びそれらの方法に関する。 復調参照信号生成装置は、第１のリソースブロックのパイロットのための無相関系列を生成する無相関系列生成器、第１の直交カバーコード（ＯＣＣ）グループを用いて、前記第１のリソースブロックの第１の周波数リソースにマッピングされるべきパイロットのための無相関系列の要素のスペクトラムを拡散する第１のスペクトラム拡散ユニット、第２のＯＣＣグループを用いて、前記第１のリソースブロックの第２の周波数リソースにマッピングされるべきパイロットのための無相関系列の要素のスペクトラムを拡散する第２のスペクトラム拡散ユニットであって、前記第１及び第２の周波数リソースは、第１のデータストリームのグループに関して隣接する周波数リソースであり、前記第１及び第２のＯＣＣグループは互いに列がミラーである、第２のスペクトラム拡散ユニット、前記のスペクトラム拡散された要素をそれぞれ前記第１及び第２の周波数リソースにマッピングするマッピングユニット、を有する。 本発明による方法及び装置は、パイロットのランダム化を向上させ、パイロットの送信パワーの不平衡の問題を除去し、時間及び周波数の両方の領域で直交性の要件を満足する。

Abstract translation: 本发明涉及正交覆盖码生成装置，解调参考信号发生装置及其方法。 解调参考信号发生器包括：非相关序列发生器，被配置为生成用于第一资源块的导频的非相关序列; 第一频谱扩展单元，被配置为通过使用第一组正交覆盖码（OCC）来扩展要映射到第一资源块的第一频率资源的导频的非相关序列中的元素的频谱; 第二频谱扩展单元，被配置为通过使用第二组OCC将针对要映射到第一资源块的第二频率资源的导频的非相关序列中的元素的频谱扩展; 所述第一和第二频率资源相对于第一组数据流是相邻的频率资源，并且所述第一和第二组OCC是彼此列的反射镜; 以及映射单元，被配置为分别将频谱扩展元素映射到第一和第二频率资源。 根据本发明的方法和装置可以增强导频随机化，消除导频传输功率不平衡的问题，并满足时间和频率二维的正交性要求。

公开(公告)号：KR1020020005217A

公开(公告)日：2002-01-17

申请号：KR1020000035997

申请日：2000-06-28

Applicant: 국방과학연구소

Inventor： 이성민

IPC: H03M13/00 ,  H04L12/427

CPC classification number: H04B1/707 ,  H04B2201/707 ,  H04L27/0014

Abstract: PURPOSE: A spreading system and method using a balanced duo-binary decoder/encoder are provided, which reduces peak/average power ratio by using the balanced duo-binary decoder/encoder to facilitate designing of a radio-frequency circuit. CONSTITUTION: A balanced duo-binary decoder/encoder includes a duo-binary encoding means(400) for receiving the positive signal of input data to generate a duo-binary signal, and a duo-binary encoding means(410) for receiving the negative signal of the input data to generate a duo-binary signal. The duo-binary decoder/encoder further has a transmitter for respectively multiplying the duo-binary signals by an orthogonal carrier and a spread code, modulating, adding up and transmitting the signals, and a balanced duo-binary decoder(41) for respectively multiplying the received duo-binary signals by the orthogonal carrier and spread code to remove the carrier and obtaining the absolute values of the signals.

Abstract translation: 目的：提供一种使用平衡二进制解码器/编码器的扩展系统和方法，通过使用平衡二进制解码器/编码器来减少峰值/平均功率比，便于射频电路的设计。 构成：平衡双二进制解码器/编码器包括二进制二进制编码装置（400），用于接收输入数据的正信号以产生二进制二进制信号;以及二进制编码装置（410），用于接收否定 输入数据的信号以产生二进制二进制信号。 二进制解码器/编码器还具有用于分别乘以二进制二进制信号与正交载波和扩展码，调制，相加和发送信号的发射机，以及用于分别乘法的平衡二进制解码器（41） 通过正交载波和扩展码接收的二进制二进制信号以去除载波并获得信号的绝对值。