公开(公告)号：US20020131516A1

公开(公告)日：2002-09-19

申请号：US10012056

申请日：2001-11-05

Applicant: HUGHES ELECTRONICS

Inventor： Hesham El-Gamal ,  A. Roger Hammons

IPC: H04B015/00

CPC classification number: H04B7/0669 ,  H04L1/04 ,  H04L1/0606 ,  H04L1/0618 ,  H04L1/0631 ,  H04L1/065

Abstract: A communication system for transmitting encoded signals over a communication channel is disclosed. The system includes a transmitter, which has a source that outputs a message signal. The transmitter also includes an encoder that generates a code word in response to the message signal. The code word has a construction that defines a plurality of paths associated with an intersymbol interference (ISI) environment of the communication channel, wherein the code word achieves a diversity based upon the number of transmit antennas and the number of ISI paths. Further, the transmitter includes a modulator that modulates the code word for transmission over the communication channel, and multiple antennas that transmit the modulated code word over the communication channel. The system encompasses a receiver that receives the transmitted code word via a number of receive antennas.

Abstract translation: 公开了一种用于通过通信信道发送编码信号的通信系统。 该系统包括发射机，其具有输出消息信号的源。 发射机还包括响应于消息信号产生码字的编码器。 代码字具有定义与通信信道的符号间干扰（ISI）环境相关联的多个路径的结构，其中码字基于发射天线的数量和ISI路径的数量实现分集。 此外，发射机包括调制器，用于调制通过通信信道传输的码字，以及通过通信信道发送调制码字的多个天线。 该系统包括接收经由多个接收天线发送的码字的接收机。

公开(公告)号：US09537512B2

公开(公告)日：2017-01-03

申请号：US14415259

申请日：2013-07-16

Applicant: Telefonica, S.A.

Inventor： Javier Lorca Hernando

IPC: H04L5/00 ,  H04L1/06 ,  H04L1/00 ,  H04B7/02 ,  H03M13/27 ,  H03M13/25

CPC classification number: H03M13/2771 ,  H03M13/258 ,  H03M13/2792 ,  H04B7/02 ,  H04L1/0066 ,  H04L1/0071 ,  H04L1/0606 ,  H04L1/0631 ,  H04L1/065 ,  H04L1/0668 ,  H04L5/0007 ,  H04L5/001

Abstract: The method comprising passing, a base station or a user terminal, information comprising data signals and encoding, a first and a second turbo encoders, said received data signals, generating two different turbo code blocks comprising a set of systematic and parity bits. Where, in order to enhance detection the two different turbo code blocks are simultaneously transmitted through a wireless OFDM system and wherein the data signals to be encoded by said second turbo encoder are interleaved prior encoding by an external bit interleaver.The system of the invention is arranged to implement the method of the invention.

Abstract translation: 本发明的系统被设置为实现本发明的方法。

公开(公告)号：US08717976B2

公开(公告)日：2014-05-06

申请号：US13145679

申请日：2010-01-26

Applicant: Jae Hoon Chung ,  Ja Ho Koo ,  Moon Il Lee ,  Yeong Hyeon Kwon

Inventor： Jae Hoon Chung ,  Ja Ho Koo ,  Moon Il Lee ,  Yeong Hyeon Kwon

IPC: H04W4/00 ,  G01R31/08 ,  H04B7/00

CPC classification number: H04B7/022 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0029 ,  H04L1/0077 ,  H04L1/065

Abstract: The present system relates to a method for transmitting control information in a wireless communications system that supports coordinated multi-point (CoMP) including N (N>1) transmission points. The method comprises: generating control information for downlink transmission of the N transmission points; and transmitting the generated control information to a user device, wherein the control information contains a control information region for transmission of intrinsic control information on a reference transmission point among the N transmission points, and N−1 control information regions for transmission of intrinsic control information on the N−1 transmission points.

Abstract translation: 本系统涉及在支持包括N（N> 1）个传输点的协调多点（CoMP）的无线通信系统中发送控制信息的方法。 该方法包括：产生用于N个传输点的下行链路传输的控制信息; 以及将所生成的控制信息发送到用户装置，其中，所述控制信息包含用于在所述N个发送点中的参考发送点上发送本征控制信息的控制信息区域和用于发送所述内部控制信息的N-1个控制信息区域 在N-1个传输点上。

公开(公告)号：US20120269284A1

公开(公告)日：2012-10-25

申请号：US13271258

申请日：2011-10-12

Applicant: Yu-Chih Jen ,  See-May Phoong ,  Yuan-Hwui Chung ,  Hsuan-Jung Su

Inventor： Yu-Chih Jen ,  See-May Phoong ,  Yuan-Hwui Chung ,  Hsuan-Jung Su

IPC: H04L27/12

CPC classification number: H04B7/0413 ,  H04B7/024 ,  H04B7/0669 ,  H04L1/0065 ,  H04L1/0625 ,  H04L1/065 ,  H04L1/0668 ,  H04L5/0023

Abstract: A method of transmitting a plurality of data symbols for a transmitter in a wireless communication system is disclosed. The method comprises encoding the plurality of data symbols into a plurality of precoded symbols according to an antipodal paraunitary (APU) precoding; processing the plurality of precoded symbols by using multi-input multi-output (MIMO) and orthogonal frequency-division multiplexing (OFDM), for generating a plurality of transmission symbols; and transmitting the plurality of transmission symbols via a plurality of transmit antennas according to operations of the MIMO and the OFDM.

Abstract translation: 公开了一种在无线通信系统中发送用于发射机的多个数据符号的方法。 该方法包括：根据对称超维数（APU）预编码将多个数据符号编码成多个预编码符号; 通过使用多输入多输出（MIMO）和正交频分复用（OFDM）来处理多个预编码符号，用于生成多个传输符号; 以及根据MIMO和OFDM的操作经由多个发送天线发送多个发送符号。

公开(公告)号：US20100246718A1

公开(公告)日：2010-09-30

申请号：US12503507

申请日：2009-07-15

Applicant: Philip V. Orlik ,  Lu Zhang ,  Raymond Yim ,  Jinyun Zhang

Inventor： Philip V. Orlik ,  Lu Zhang ,  Raymond Yim ,  Jinyun Zhang

IPC: H04L27/00 ,  H03C3/00

CPC classification number: H04L1/065 ,  H04L1/0003 ,  H04L25/0212 ,  H04L25/0226

Abstract: An encoder in a transmitter uses space-time trellis coding. An input bitstream is multiplexed to produce in parallel a set of output bitstreams. A multiplier applies a code generating weight to each output bitstream, which are combined, mapped and transmitted by a single antenna.

Abstract translation: 发射机中的编码器使用时空网格编码。 输入比特流被多路复用以并行产生一组输出比特流。 乘法器将代码生成权重应用于由单个天线组合，映射和发送的每个输出比特流。

公开(公告)号：US07796696B2

公开(公告)日：2010-09-14

申请号：US11057842

申请日：2005-02-15

Applicant: Christopher James Hansen ,  Joonsuk Kim ,  Rajendra T. Moorti ,  Nambirajan Seshadri ,  Jason Alexander Trachewsky

Inventor： Christopher James Hansen ,  Joonsuk Kim ,  Rajendra T. Moorti ,  Nambirajan Seshadri ,  Jason Alexander Trachewsky

IPC: H04K1/10 ,  H04L27/28

CPC classification number: H04L1/0066 ,  H04L1/0643 ,  H04L1/065 ,  H04L1/1671

Abstract: A method of communicating data to M receiving antennas from N transmitting antennas, where M and N are integers and unequal, has the steps of sending a message to determine a number of transmit paths to be used, awaiting an acknowledgement message comprising a number of receiver paths, setting the number of transmit paths based on at least the acknowledgement message, producing data streams from outbound data based on the number of transmit paths, applying the data streams to a space/time encoder to produce encoded signals and transmitting the encoded signals from at least a portion of N transmitting antennas.

Abstract translation: 从N个发送天线向M个接收天线发送数据的方法，其中M和N是整数和不等的，具有发送消息以确定要使用的发送路径的数量的步骤，等待包括多个接收机的确认消息 至少基于确认消息设置发送路径的数量，基于发送路径的数量从出站数据生成数据流，将数据流应用到空间/时间编码器以产生编码信号并从 N个发射天线的至少一部分。

公开(公告)号：US07457372B2

公开(公告)日：2008-11-25

申请号：US10695493

申请日：2003-10-28

Applicant: Chan-Soo Hwang ,  Yung-Soo Kim ,  Seung-Hoon Nam ,  Jae-Hak Chung

Inventor： Chan-Soo Hwang ,  Yung-Soo Kim ,  Seung-Hoon Nam ,  Jae-Hak Chung

IPC: H04L27/04 ,  H04B1/69

CPC classification number: H04L1/065 ,  H04L1/0069 ,  H04L1/0625 ,  H04L1/0631

Abstract: A mobile communication system includes at least three transmission antennas of first to third transmission antennas, and uses an overlapped antenna scheme for grouping the first and second transmission antennas into a first transmission antenna group and grouping the second and third transmission antennas into a second transmission antenna group. First and second modulators modulate L information bit streams to be transmitted through the first transmission antenna group and output first and second modulation symbol streams. Third and fourth modulators modulate L other information bit streams to be transmitted through the second transmission antenna group and output third and fourth symbol streams. First to fourth puncturers puncture at least one modulation symbol in a predetermined position among the first to fourth modulation symbol streams. A multiplexer transmits a modulation symbol stream output from the first puncturer through the first transmission antenna, transmits modulation symbol streams output from the second and third puncturers through the second transmission antenna after summation, and transmits a modulation symbol stream output from the third puncturer through the third transmission antenna.

Abstract translation: 移动通信系统包括第一至第三发射天线的至少三个发射天线，并且使用重叠的天线方案将第一和第二发射天线分组成第一发射天线组，并将第二和第三发射天线分组成第二发射天线 组。 第一和第二调制器调制通过第一发送天线组发送的L个信息比特流并输出第一和第二调制符号流。 第三和第四调制器调制通过第二发送天线组发送的另外的信息比特流并输出第三和第四符号流。 第一至第四穿孔器在第一至第四调制符号流中的预定位置中至少刺穿一个调制符号。 复用器通过第一发送天线发送从第一穿孔器输出的调制符号流，在求和之后通过第二发送天线发送从第二和第三穿孔器输出的调制符号流，并且从第三穿孔器输出的调制符号流通过 第三发射天线。

公开(公告)号：US07372802B2

公开(公告)日：2008-05-13

申请号：US10985566

申请日：2004-11-10

Applicant: Marco Breiling ,  Johannes B. Huber ,  Alexander Lampe ,  Ernst Eberlein

Inventor： Marco Breiling ,  Johannes B. Huber ,  Alexander Lampe ,  Ernst Eberlein

IPC: H04J11/00 ,  H04J3/16 ,  H03D1/04 ,  H04B7/10 ,  H04B1/00

CPC classification number: H04B7/0669 ,  H04L1/0048 ,  H04L1/0054 ,  H04L1/0071 ,  H04L1/02 ,  H04L1/0618 ,  H04L1/0625 ,  H04L1/0631 ,  H04L1/065 ,  H04L25/0204 ,  H04L25/0242 ,  H04L2025/03605

Abstract: In a transmitting/receiving concept a redundancy-adding encoder is used in order to obtain two data streams for different transmitters. In the receiver, the receiving signal is sampled by a first sampler synchronous to the first transmitter and is output by a second sampler synchronous to the second transmitter in order to obtain a first and a second receiving signal which are fed to a trellis decoder to obtain a decoded first and second receiving subgroup of code units which are again fed to a calculating means in order to calculate the interference signals which are then combined with the corresponding receiving signals for an interference reduction. The iterative concept enables an interference reduction for receiving signal generated by two spatially separated transmitters. The receiver concept shows a quick convergence and thus enables the two transmitters to transmit in the same frequency band.

Abstract translation: 在发送/接收概念中，使用冗余加法编码器以获得用于不同发射机的两个数据流。 在接收机中，接收信号由与第一发射机同步的第一采样器采样，并由与第二发射机同步的第二采样器输出，以获得第一和第二接收信号，其被馈送到网格解码器以获得 解码的第一和第二接收码单元组，其再次馈送到计算装置，以便计算干扰信号，然后将其与相应的接收信号组合以进行干扰减少。 迭代概念能够对由两个空间分离的发射机产生的接收信号进行干扰减少。 接收机概念显示出快速收敛，从而使得两个发射机能够在相同的频带中发射。

公开(公告)号：US07315570B2

公开(公告)日：2008-01-01

申请号：US11231691

申请日：2005-09-21

Applicant: Hesham El-Gamal ,  A. Roger Hammons, Jr.

Inventor： Hesham El-Gamal ,  A. Roger Hammons, Jr.

IPC: H04L27/30

CPC classification number: H04B7/0669 ,  H04L1/04 ,  H04L1/0606 ,  H04L1/0618 ,  H04L1/0631 ,  H04L1/065

Abstract: A communication system for transmitting encoded signals over a communication channel is disclosed. The system includes a transmitter, which has a source that outputs a message signal. The transmitter also includes an encoder that generates a code word in response to the message signal. The code word has a construction that defines a plurality of paths associated with an intersymbol interference (ISI) environment of the communication channel, wherein the code word achieves a diversity based upon the number of transmit antennas and the number of ISI paths. Further, the transmitter includes a modulator that modulates the code word for transmission over the communication channel, and multiple antennas that transmit the modulated code word over the communication channel. The system encompasses a receiver that receives the transmitted code word via a number of receive antennas.

公开(公告)号：US07272294B2

公开(公告)日：2007-09-18

申请号：US11415113

申请日：2006-05-02

Applicant: Liang Zhou ,  Michiharu Nakamura

Inventor： Liang Zhou ,  Michiharu Nakamura

IPC: G02B6/00 ,  H04L27/00 ,  H04J15/00

CPC classification number: H04L25/03331 ,  H04B7/0417 ,  H04B7/0626 ,  H04L1/0631 ,  H04L1/065

Abstract: The present invention is to provide a wireless communication system and a receiving device each capable of restraining a circuit scale and obtaining an excellent error rate performance. In a wireless communication system in which a transmitting device and a receiving device communicate in an orthogonal frequency division multiplexing system, the transmitting device includes a partition unit partitioning a transmission data sequence into a plurality of data streams and a mapping unit mapping the plurality of data streams to each of transmitting antennas by using, for a precoding matrix, columns, corresponding to a stream count of the plurality of data streams, of a right singular matrix acquired by singular value decomposition of a channel matrix, and the receiving device includes a decoding unit that Viterbi-decodes the received signals by weighting a path metric by using a weighting coefficient corresponding to a signal-to-noise ratio obtained from the present channel matrix.

Abstract translation: 本发明是提供一种无线通信系统和接收装置，其能够抑制电路规模并获得出色的性能。 在发送装置和接收装置在正交频分复用系统中进行通信的无线通信系统中，发送装置具有将发送数据序列分割成多个数据流的分割部，以及映射单元 通过对于预编码矩阵使用与多个数据流的流计数相对应的通过信道矩阵的奇异值分解获取的右奇异矩阵的列，发送到每个发送天线，并且接收装置包括解码 维特比通过使用与从当前信道矩阵获得的信噪比对应的加权系数对路径度量进行加权来对接收信号进行解码的单元。