公开(公告)号：US09935665B1

公开(公告)日：2018-04-03

申请号：US14931089

申请日：2015-11-03

申请人： Marvell International Ltd.

发明人： Ravi Narasimhan ,  Hemanth Sampath

IPC分类号： H04J11/00 ,  H04B1/38

CPC分类号： H04B1/38 ,  H04B7/0447 ,  H04B7/0671 ,  H04B7/0697 ,  H04J13/004 ,  H04L1/0637 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0053 ,  H04L27/2613

摘要： A transmitter including a transmit section and a frame formatter. The transmit section is to generate a stream of data to be transmitted using a plurality of antennas and separate the stream of data into a plurality of substreams corresponding to respective ones of the plurality of antennas. The frame formatter is to form respective frames of data from the plurality of substreams. Each of the frames of data includes a short preamble including short training symbols, a long preamble including long training symbols, and a signal field indicating a quantity of the plurality of antennas. The transmit section is further to transmit the frames of data using respective ones of the plurality of antennas.

公开(公告)号：US09203492B2

公开(公告)日：2015-12-01

申请号：US14137665

申请日：2013-12-20

申请人： The DIRECTV Group, Inc.

发明人： Mustafa Eroz ,  Lin-Nan Lee ,  Feng-Wen Sun

IPC分类号： H03M13/00 ,  H04B7/06 ,  H03M13/11 ,  H04L1/00 ,  H04L1/06 ,  H04L25/03 ,  H03M13/25 ,  H04B7/04 ,  H04L5/00

CPC分类号： H04B7/06 ,  H03M13/1102 ,  H03M13/255 ,  H04B7/04 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/0606 ,  H04L1/0625 ,  H04L1/0637 ,  H04L5/0023 ,  H04L25/03898

摘要： Method and apparatus for implementing LDPC codes in an IEEE 802.11 standard system configured to operate in a Multiple-Input, Multiple-Output (MIMO) schema. A method in accordance with the present invention comprises defining a base LDPC code, having a length equal to an integer number of data carriers in an ODFM symbol, transmitting the base LDPC code over a plurality of sub-carriers, wherein the base code is transmitted at an expected phase on sub-carriers specified by the IEEE 802.11 standard system, and transmitting the base LDPC code on other sub-carriers than those specified by the IEEE 802.11 standard system, wherein the base LDPC code on the other sub-carriers is transmit offset in phase from the base LDPC code on the specified sub-carriers.

摘要翻译： IEEE 802.11标准系统中用于实施LDPC码的方法和装置，其被配置为在多输入多输出（MIMO）模式中操作。 根据本发明的方法包括定义具有等于ODFM符号中的整数数据载波的长度的基本LDPC码，在多个子载波上发送基本LDPC码，其中发送基本码 在由IEEE 802.11标准系统指定的子载波上的期望阶段，并且在与由IEEE 802.11标准系统指定的那些子载波之外的其他子载波上发送基本LDPC码，其中其他子载波上的基本LDPC码被发送 在指定子载波上与基本LDPC码相位偏移。

公开(公告)号：US08559541B2

公开(公告)日：2013-10-15

申请号：US12096560

申请日：2006-12-06

申请人： Bin Chul Ihm ,  Moon Il Lee ,  Jin Young Chun ,  Wook Bong Lee ,  Jae Won Chang ,  Jin Hyuk Jung

发明人： Bin Chul Ihm ,  Moon Il Lee ,  Jin Young Chun ,  Wook Bong Lee ,  Jae Won Chang ,  Jin Hyuk Jung

IPC分类号： H04B7/02

CPC分类号： H04L1/0637 ,  H04B7/0669 ,  H04L1/0643

摘要： A signal transmission method for use in a multi-antenna system includes: receiving a complex signal using N antennas and M timeslots as a single unit, and generating a space-time code (STC) for performing interleaving and phase-shifting operations of the received complex signal; and applying the space-time code (STC) to the received complex signal, and transmitting the resultant signal. Therefore, the signal transmission method provides a space-time code (STC) provides a space-time code (STC) having higher performance and lower encoding complexity, and can effectively transmit the signal via the multi-antenna system.

摘要翻译： 用于多天线系统的信号传输方法包括：使用N个天线和M个时隙作为单个单元接收复信号，并且生成用于执行所接收的交织和相移操作的空时码（STC） 复信号 以及将空时码（STC）应用于所接收的复信号，并发送所得到的信号。 因此，信号发送方法提供空时码（STC）提供具有更高性能和更低编码复杂度的时空码（STC），并且可以经由多天线系统有效地发送信号。

公开(公告)号：US08040867B2

公开(公告)日：2011-10-18

申请号：US12526849

申请日：2008-01-25

申请人： Damien Castelain ,  Loic Brunel ,  David Mottier ,  Cristina Ciochina

发明人： Damien Castelain ,  Loic Brunel ,  David Mottier ,  Cristina Ciochina

IPC分类号： H04J1/00

CPC分类号： H04L1/0606 ,  H04L1/0637 ,  H04L5/0023 ,  H04L25/0204 ,  H04L27/2636

摘要： A method and device in the domain of wireless communication, and more specifically coding and decoding schemes useful in the context of MIMO (Multiple Input Multiple Output) or MISO (Multiple Input Single Output) communications especially used in conjunction of OFDM-like transmission schemes. A space frequency block code applies some well chosen two by two space frequency block codes to each pair of frequencies κ and κ+N/2. The proposed SFBC keep the constant envelope property for each antenna while leading to a good performance by introducing some spatial diversity.

摘要翻译： 无线通信领域中的方法和装置，更具体地，在OFDM（多输入多输出）或MISO（多输入单输出）通信的背景下有用的编码和解码方案，特别是结合OFDM类传输方案使用。 空间频率块码将两个两个空格频率块代码应用于每对频率kgr; 和＆kgr; + N / 2。 提出的SFBC通过引入一些空间分集来保持每个天线的恒定包络特性，同时导致良好的性能。

公开(公告)号：US20100005363A1

公开(公告)日：2010-01-07

申请号：US12496443

申请日：2009-07-01

申请人： Mustafa Eroz ,  Lin-Nan Lee ,  Feng-Wen Sun

发明人： Mustafa Eroz ,  Lin-Nan Lee ,  Feng-Wen Sun

IPC分类号： H03M13/00

CPC分类号： H04B7/06 ,  H03M13/1102 ,  H03M13/255 ,  H04B7/04 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/0606 ,  H04L1/0625 ,  H04L1/0637 ,  H04L5/0023 ,  H04L25/03898

摘要： Method and apparatus for implementing LDPC codes in an IEEE 802.11 standard system configured to operate in a Multiple-Input, Multiple-Output (MIMO) schema. A method in accordance with the present invention comprises defining a base LDPC code, having a length equal to an integer number of data carriers in an ODFM symbol, transmitting the base LDPC code over a plurality of sub-carriers, wherein the base code is transmitted at an expected phase on sub-carriers specified by the IEEE 802.11 standard system, and transmitting the base LDPC code on other sub-carriers than those specified by the IEEE 802.11 standard system, wherein the base LDPC code on the other sub-carriers is transmit offset in phase from the base LDPC code on the specified sub-carriers.

摘要翻译： IEEE 802.11标准系统中用于实施LDPC码的方法和装置，其被配置为在多输入多输出（MIMO）模式中操作。 根据本发明的方法包括定义具有等于ODFM符号中的整数数据载波的长度的基本LDPC码，在多个子载波上发送基本LDPC码，其中发送基本码 在由IEEE 802.11标准系统指定的子载波上的期望阶段，并且在与由IEEE 802.11标准系统指定的那些子载波之外的其他子载波上发送基本LDPC码，其中其他子载波上的基本LDPC码被发送 在指定子载波上与基本LDPC码相位偏移。

公开(公告)号：US20090175376A1

公开(公告)日：2009-07-09

申请号：US12390340

申请日：2009-02-20

申请人： Bin Chul Ihm ,  Yong Suk Jin ,  Kyu Hyuk Chung ,  Min Seok Oh

发明人： Bin Chul Ihm ,  Yong Suk Jin ,  Kyu Hyuk Chung ,  Min Seok Oh

IPC分类号： H04L27/28 ,  H04B7/02

CPC分类号： H04B7/0643 ,  H04B7/063 ,  H04B7/0636 ,  H04B7/0667 ,  H04B7/0669 ,  H04B7/0673 ,  H04B7/0689 ,  H04B17/24 ,  H04L1/0625 ,  H04L1/0637 ,  H04L1/0675 ,  H04W52/42

摘要： A method of controlling data communication in a wireless communication system comprises measuring channel quality from data received from a base station having multiple antennas, wherein the base station and a mobile station are in a closed loop space-time coding (STC) communication. The method also comprises determining a first weight matrix based on a number of the multiple antennas of the base station, the weight matrix comprising weight elements. The method also comprises determining a second weight matrix from the first weight matrix in response to a predetermined condition, wherein the second weight matrix is associated with controlling data output using the multiple antennas of the base station for subsequent transmission. The method also comprises providing a number of STC outputs to the base station, wherein the number of STC outputs is associated with the second weight matrix.

摘要翻译： 一种控制无线通信系统中的数据通信的方法，包括从具有多个天线的基站接收的数据测量信道质量，其中基站和移动站处于闭环空时编码（STC）通信。 该方法还包括基于基站的多个天线的数量来确定第一权重矩阵，权重矩阵包括权重元素。 所述方法还包括响应于预定条件从所述第一加权矩阵确定第二加权矩阵，其中所述第二加权矩阵与所述基站的所述多个天线的控制数据输出相关联以用于随后的传输。 该方法还包括向基站提供多个STC输出，其中STC输出的数量与第二权重矩阵相关联。

公开(公告)号：US20090046774A1

公开(公告)日：2009-02-19

申请号：US12192048

申请日：2008-08-14

申请人： Chadi ABOU RJEILY

发明人： Chadi ABOU RJEILY

IPC分类号： H03K9/04

CPC分类号： H04B7/0891 ,  H04B1/7176 ,  H04B7/0669 ,  H04L1/0625 ,  H04L1/0637

摘要： A space-time coding method for a UWB pulse type transmission/reception system. The space-time code, given for P=2, 4 or 8 transmission antennas, makes it possible to code 2-PPM information symbols and to modulate the position of UWB pulse signals using coded symbols, without requiring extension of the modulation alphabet. The space-time code is real with maximum diversity, and is full speed. The space-time decoding method is capable of estimating the information symbols thus transmitted.

摘要翻译： 一种用于UWB脉冲型发送/接收系统的时空编码方法。 为P = 2,4或8发送天线给出的时空码使得可以对2-PPM信息符号进行编码并且使用编码符号来调制UWB脉冲信号的位置，而不需要扩展调制字母表。 时空码是真实的，具有最大的多样性，并且是全速的。 时空解码方法能够估计如此发送的信息符号。

公开(公告)号：US20080240276A1

公开(公告)日：2008-10-02

申请号：US11667711

申请日：2005-08-10

申请人： Young-Seog Song ,  Seong-Rag Kim ,  In-Kyeong Choi ,  Choong-ll Yeh ,  Seung-Joon Lee ,  Hyoung-Soo Lim ,  Kwang-Jae Lim ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Dong-Seung Kwon ,  Seung-Ku Hwang ,  Chung-Yong Lee ,  Myeong-Cheol Shin

发明人： Young-Seog Song ,  Seong-Rag Kim ,  In-Kyeong Choi ,  Choong-ll Yeh ,  Seung-Joon Lee ,  Hyoung-Soo Lim ,  Kwang-Jae Lim ,  Yu-Ro Lee ,  Jong-Ee Oh ,  Dong-Seung Kwon ,  Seung-Ku Hwang ,  Chung-Yong Lee ,  Myeong-Cheol Shin

IPC分类号： H04L5/12 ,  H04L27/28

CPC分类号： H04B7/061 ,  H04B7/0669 ,  H04B7/0691 ,  H04B7/08 ,  H04L1/0003 ,  H04L1/0637 ,  H04L1/0675

摘要： The present invention relates to a multi-input multi-output (MIMO) system for enhancing transmission performance. The MIMO system uses space-time encoding and transmit antenna selection methods, and includes a transmitter (100) and a receiver (200). The transmitter (100) includes N transmit antennas (130-1, 130-4) that are more than M tansrni antennas (130-1, 130-3) used for transmitting a signal to space channel, selects the M transmit antennas (130-1, 130-3) among the N transmit antennas (130-3 130-4), and transmits symbol by space-time encoding the symbol. The receiver (200) includes M receive antenna (120-1, 210-2) for receiving a signal from the space channel, detects an information symbol by using the signal received through the receive antenna (210-1, 210-2), generates transmit antenna selection information for selecting M transmit antennas (130-1, 130-3) among transmit antennas (i30-1, . . . 7130-4) with reference to a channel estimate, and returns the information to the transmitter.

摘要翻译： 本发明涉及用于增强传输性能的多输入多输出（MIMO）系统。 MIMO系统使用时空编码和发射天线选择方法，并且包括发射机（100）和接收机（200）。 发射机（100）包括比用于将信号发射到空间信道的M多个天线（130-1,30-3）多的N个发射天线（130-1,140-4），选择M个发射天线（130 -1,130-3），并且通过对该符号进行时空编码来发送符号。 接收器（200）包括用于从空间信道接收信号的M个接收天线（120-1,210-2），通过使用通过接收天线（210-1,210-2）接收的信号来检测信息符号， 生成用于参考信道估计在发射天线（i 30-1，...，7130-4）中选择M个发射天线（130-1,130-3）的发射天线选择信息，并将该信息返回给发射机。

公开(公告)号：US07415076B2

公开(公告)日：2008-08-19

申请号：US11504898

申请日：2006-08-16

申请人： Hesham El-Gamal ,  A. Roger Hammons, Jr.

发明人： Hesham El-Gamal ,  A. Roger Hammons, Jr.

IPC分类号： H04B7/02

CPC分类号： H04L1/0059 ,  H04L1/0071 ,  H04L1/0606 ,  H04L1/0618 ,  H04L1/0637 ,  H04L27/18

摘要： A communication system for transmitting encoded signals over a communication channel is disclosed. The system includes a transmitter, which has a source that is configured to output a message signal, and an encoder that is configured to generate a code word in response to the message signal. The code word is based upon a stacking construction that is generalized for the communication channel. The communication channel is characterized as a multi-input multi-output (MIMO) block fading channel. The transmitter also includes a modulator that is configured to modulate the code word for transmission over the communication channel. Further, the transmitter includes a plurality of transmit antennas that are configured to transmit the modulated code word over the communication channel. The system also includes a receiver, which has a plurality of receive antennas. The receiver is configured to receive the transmitted code word via the plurality of receive antennas.

摘要翻译： 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，其具有被配置为输出消息信号的源和被配置为响应于该消息信号产生码字的编码器。 代码字基于通信用于通信信道的堆叠结构。 通信信道被表征为多输入多输出（MIMO）块衰落信道。 发射机还包括调制器，其被配置为调制用于通过通信信道传输的码字。 此外，发射机包括被配置为通过通信信道发送调制码字的多个发射天线。 该系统还包括具有多个接收天线的接收机。 接收机被配置为经由多个接收天线接收所发送的码字。

公开(公告)号：US20070217537A1

公开(公告)日：2007-09-20

申请号：US11278270

申请日：2006-03-31

申请人： Ignacio Berenguer ,  Xiaodong Wang ,  Mohammad Madihian

发明人： Ignacio Berenguer ,  Xiaodong Wang ,  Mohammad Madihian

IPC分类号： H04L1/02

CPC分类号： H04L1/0637 ,  H04L25/03242 ,  H04L2025/03426

摘要： A lattice space time coding arrangement for transmission systems is disclosed which enables construction of lattice space time codes with improved error rate performance for arbitrary receiver structures.

摘要翻译： 公开了一种用于传输系统的格空间时间编码装置，其能够构建具有改进的任意接收机结构的错误率性能的格子空间时间码。