公开(公告)号：US20100284377A1

公开(公告)日：2010-11-11

申请号：US12843451

申请日：2010-07-26

Applicant: Yongbin Wei ,  Naga Bhushan

Inventor： Yongbin Wei ,  Naga Bhushan

IPC: H04J3/00

CPC classification number: H04L5/0007 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/003 ,  H04L1/0056 ,  H04L1/0081 ,  H04L1/0643 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2602 ,  H04L27/2626 ,  H04L27/2649

Abstract: Techniques for sending signaling for data transmission in a wireless communication system are described. A transmitter may process signaling for a data transmission based on a block code, a convolutional code, a transformation, etc. The signaling may comprise an identifier of an intended receiver for the data transmission and/or other information such as data rate, resource assignment, etc. The signaling for the data transmission may be mapped to a first set of tones in a time slot. Data for the data transmission may be mapped to a second set of tones in the time slot. The entire signaling may be sent on the first set of tones. Alternatively, the first set of tones may be selected from among multiple sets of tones or pseudo-randomly selected from among available tones based on a first part of the signaling. A second part of the signaling may be sent on the first set of tones.

Abstract translation: 描述用于在无线通信系统中发送用于数据传输的信令的技术。 发射机可以基于块码，卷积码，变换等处理用于数据传输的信令。信令可以包括用于数据传输的预期接收机的标识符和/或其他信息，例如数据速率，资源分配 等等。用于数据传输的信令可以被映射到时隙中的第一组音调。 数据传输的数据可以被映射到时隙中的第二组音调。 可以在第一组音调上发送整个信令。 或者，可以从多个音调集中选择第一组音调，或者基于信令的第一部分从可用音调中进行伪随机选择。 信令的第二部分可以在第一组音调上发送。

公开(公告)号：US07826558B2

公开(公告)日：2010-11-02

申请号：US11909434

申请日：2006-03-29

Applicant: Zheng Zhao ,  Jifeng Li

Inventor： Zheng Zhao ,  Jifeng Li

IPC: H04B1/707

CPC classification number: H04B7/0669 ,  H04B7/0678 ,  H04L1/0643

Abstract: First normalizing means (12) normalizes first and second code streams (s1, s2). First spreading means (13) spreads the output of the first normalizing means (12). STTD coding means (14) subjects the first and second code streams (s1, s2) to STTD coding. Second normalizing means (15) normalizes the output of the STTD coding means (14). Second spreading means (16) spreads the output of the second normalizing means (15) by means of the same spreading code as that of the first normalizing means (12). Orthogonal transforming means (17) gives the negative signs to odd chips in a second path spread sequence of each code and exchanges the orders of the odd and even chips. Combining means (18) adds first and second spread sequences of the second path produced by orthogonally transforming the first and second spread sequences of the first path. With this, by using the orthogonality of the transmitted sequences at the receiving side, the reception signal can be detected with a lower complexity.

Abstract translation: 第一归一化装置（12）对第一和第二码流进行归一化（s1，s2）。 第一扩展装置（13）扩展第一归一化装置（12）的输出。 STTD编码装置（14）对第一和第二码流（s1，s2）进行STTD编码。 第二归一化装置（15）对STTD编码装置（14）的输出进行归一化。 第二扩展装置（16）通过与第一归一化装置（12）相同的扩展码来扩展第二归一化装置（15）的输出。 正交变换装置（17）在每个代码的第二路径扩展序列中给出奇数码片的负号，并交换奇数和偶数码片的顺序。 组合装置（18）添加通过对第一路径的第一和第二扩展序列进行正交变换而产生的第二路径的第一和第二扩展序列。 由此，通过使用发送序列在接收侧的正交性，可以以较低的复杂度来检测接收信号。

公开(公告)号：US07826556B2

公开(公告)日：2010-11-02

申请号：US11721603

申请日：2005-12-13

Applicant: Monisha Ghosh ,  Pen C. Li

Inventor： Monisha Ghosh ,  Pen C. Li

IPC: H04L27/00

CPC classification number: H04L27/2602 ,  H04B7/0613 ,  H04B7/0669 ,  H04L1/0071 ,  H04L1/0643 ,  H04L1/0668

Abstract: The present invention, generally speaking, provides interleavers and methods of interleaving that satisfy the need for backward compatibility while effectively addressing competing design objectives. In accordance with one aspect of the invention, data is transmitted using a number of transmit antennas greater than an expected number of receive antennas. At least one pair of transmit antennas is formed, and multiple second data streams are formed from a first data stream, successive bits in said first data stream being assigned to different ones of said second data streams. Block interleaving of multiple respective ones of said second data streams is individually performed. During successive transmission intervals, the pair of transmit antennas is used to transmit a pair of data symbols taken from different ones of said second data streams, followed by an equivalent transformed pair of data symbols.

Abstract translation: 本发明一般地提供交织器和交织方法，其满足对向兼容性的需要，同时有效地解决竞争设计目标。 根据本发明的一个方面，使用大于预期数量的接收天线的多个发射天线来发送数据。 形成至少一对发射天线，并且从第一数据流形成多个第二数据流，所述第一数据流中的连续位被分配给不同的所述第二数据流。 分别执行多个相应的所述第二数据流的块交织。 在连续的传输间隔期间，该对发射天线用于发送从不同的所述第二数据流中取出的一对数据符号，随后是等效的变换数据符号对。

公开(公告)号：US20100272168A1

公开(公告)日：2010-10-28

申请号：US12428020

申请日：2009-04-22

Applicant: David CHAPPAZ

Inventor： David CHAPPAZ

IPC: H04L27/01

CPC classification number: H04L25/03038 ,  H04L1/0625 ,  H04L1/0643

Abstract: A receiver for a telecommunications system in which a data signal is transmitted using a closed loop transmit diversity system and a pilot signal is transmitted using a space time transmit diversity system, the receiver comprising an equalizer for equalising a signal received by the receiver, wherein the equalizer is configured to produce an equalized signal in which effects caused by a propagation channel through which the data signal was transmitted are alleviated, the receiver further comprising a processor for processing the equalized received signal to recover the pilot signal.

Abstract translation: 使用空时发射分集系统发送用于使用闭环发射分集系统和导频信号发送数据信号的电信系统的接收机，所述接收机包括用于均衡由接收机接收的信号的均衡器，其中， 均衡器被配置为产生均衡信号，其中减轻了由发送数据信号的传播信道造成的影响，接收机还包括处理器，用于处理均衡的接收信号以恢复导频信号。

公开(公告)号：US20100208716A1

公开(公告)日：2010-08-19

申请号：US12296434

申请日：2008-04-30

Applicant: Syed Mujtaba ,  Xiaowen Wang

Inventor： Syed Mujtaba ,  Xiaowen Wang

IPC: H04B7/216 ,  H04L5/12

CPC classification number: H04L1/0643 ,  H04L1/0606

Abstract: In one embodiment, the present invention generates a single rotation angle that may be used to maximize diversity of a quasi-orthogonal space-time block code that encodes groups of four data symbols. Two rotation angles corresponding the first two data symbols in a group are set to zero, and two rotation angles corresponding to the second two data symbols in a group are set to a single initial value. A codeword distance matrix is determined for each possible combination of codewords and erroneously decoded codewords that may be generated using the initial rotation angle, and the minimum of the determinants of these matrices is selected. This process is repeated to generate a plurality of minimum determinants, and, for each iteration, a different single rotation angle corresponding to the second two data symbols is used. Then, a single rotation angle is selected that corresponds to the maximum of the minimum determinants.

Abstract translation: 在一个实施例中，本发明产生单个旋转角度，其可用于最大化对四个数据符号组进行编码的准正交空时块代码的分集。 对应于组中的前两个数据符号的两个旋转角度被设置为零，并且与组中的第二两个数据符号相对应的两个旋转角度被设置为单个初始值。 针对可能使用初始旋转角度生成的码字和错误解码的码字的每个可能组合来确定码字距离矩阵，并且选择这些矩阵的最小值。 重复该过程以产生多个最小决定因素，并且对于每个迭代，使用与第二两个数据符号相对应的不同的单个旋转角度。 然后，选择对应于最小决定因素的最大值的单个旋转角度。

公开(公告)号：US07672389B2

公开(公告)日：2010-03-02

申请号：US11435743

申请日：2006-05-18

Applicant: Arnaud Gueguen

Inventor： Arnaud Gueguen

IPC: H04B7/02

CPC classification number: H04L1/0643

Abstract: The present invention concerns a method for transmitting symbols through at least a channel in a telecommunication system including at least one transmitter (10) provided with at least two transmitting antennas (Antt 1, Antt 2) and at least one receiver provided with at least one receiving antenna (Antr 1), the method includes an encoding step wherein a vector comprising symbols is multiplied by a coding matrix for producing coded symbols to be transmitted over the at least one communication channel established between the transmitter (10) and the receiver (20), wherein the coding matrix is calculated from an eigenvalue decomposition of a matrix obtained by calculating at least the Kronecker product of the identity matrix of size N, N being the time and/or the frequency dimension of the code and a matrix obtained from an estimated correlation matrix of the response of the channel. The invention concerns also the associated device and a method and device for decoding symbols.

Abstract translation: 本发明涉及一种用于通过电信系统中的至少一个信道发送符号的方法，该电信系统包括至少一个发射机（10），该发射机（10）具有至少两个发射天线（Antt 1，Antt 2）和至少一个接收机， 接收天线（Antr 1），该方法包括编码步骤，其中包括符号的矢量被乘以一个编码矩阵，用于产生要通过建立在发射机（10）和接收机（20）之间的至少一个通信信道发射的编码符号 ），其中所述编码矩阵是从通过计算尺寸N的单位矩阵的至少Kronecker乘积获得的矩阵的特征值分解来计算的，N是代码的时间和/或频率维数，以及从 通道响应的估计相关矩阵。 本发明还涉及相关联的设备以及用于解码符号的方法和设备。

公开(公告)号：US20100034320A1

公开(公告)日：2010-02-11

申请号：US12300407

申请日：2007-05-11

Applicant: David Champion

Inventor： David Champion

IPC: H04L27/06

CPC classification number: H04L1/0631 ,  H04L1/0643

Abstract: A method is provided for decoding spatiotemporal codes, in particular Golden type code. The received vector is subjected to a MMSE-GDFE filtering, a constellation re-centering to define a Z-matrix, a permutation to obtain X-shaped matrices, a trellis base reduction and a ZF-DFE algorithm by processing the elements of the Z-matrix layer by layer. Each layer includes both elements of the diagonal or anti-diagonal of the Z-matrix.

Abstract translation: 提供了一种用于对时空代码进行解码的方法，特别是Golden类型的代码。 接收的矢​​量经过MMSE-GDFE滤波，重新定心的星座以定义Z矩阵，通过处理Z的元素来获得X形矩阵的排列，网格基减少和ZF-DFE算法 一个一层的矩阵。 每个层包括Z矩阵的对角线或反对角线的两个元素。

公开(公告)号：US07661038B2

公开(公告)日：2010-02-09

申请号：US11539867

申请日：2006-10-09

Applicant: Qinghua Li ,  Guangjie Li ,  Shanshan Zheng ,  Xintian Eddie Lin ,  Jun Shi

Inventor： Qinghua Li ,  Guangjie Li ,  Shanshan Zheng ,  Xintian Eddie Lin ,  Jun Shi

IPC: G06F11/00

CPC classification number: H04L1/1816 ,  H04B17/24 ,  H04B17/309 ,  H04B17/336 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0048 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/0643 ,  H04L27/2601

Abstract: Embodiments of the present invention provide for link adaptation computations accounting for retransmission error-control techniques to be employed in transmission sequences utilizing the adapted link. Other embodiments may be described and claimed.

Abstract translation: 本发明的实施例提供了用于在利用适配链路的传输序列中采用的重传错误控制技术的链路自适应计算。 可以描述和要求保护其他实施例。

公开(公告)号：US07620117B2

公开(公告)日：2009-11-17

申请号：US11124888

申请日：2005-05-09

Applicant: Chan-Byoung Chae ,  Hong-Sil Jeong ,  Katz Marcos Daniel ,  Dong-Seek Park ,  Young-Kwon Cho

Inventor： Chan-Byoung Chae ,  Hong-Sil Jeong ,  Katz Marcos Daniel ,  Dong-Seek Park ,  Young-Kwon Cho

IPC: H04L27/00

CPC classification number: H04L1/0643

Abstract: Disclosed is an apparatus and method for encoding/decoding a space time block code in a mobile communication system using a multiple input multiple output scheme. In a transmitter employing a plurality of transmit antennas in the mobile communication system, if a signal to be transmitted is input, the transmit signal is pre-encoded according to a preset coding scheme, the pre-encoded signal is space-time mapped according to a number of the transmit antennas to employ a preset space time block coding scheme, and the space-time mapped signal is transmitted through the transmit antennas by applying the preset space time block coding scheme to the space-time mapped signal.

Abstract translation: 公开了一种使用多输入多输出方案在移动通信系统中对时空块码进行编码/解码的装置和方法。 在移动通信系统中采用多个发射天线的发射机中，如果要发射的信号被输入，则根据预设的编码方案对发射信号进行预编码，根据预编码信号进行空时映射 使用预设空间时间块编码方案的多个发送天线，并且通过将预设空间时间块编码方案应用于时空映射信号，通过发送天线发送空时映射信号。

公开(公告)号：US20090279633A1

公开(公告)日：2009-11-12

申请号：US12463017

申请日：2009-05-08

Applicant: Jungwon Lee ,  Yakun Sun ,  Hui-Ling Lou

Inventor： Jungwon Lee ,  Yakun Sun ,  Hui-Ling Lou

IPC: H04B7/02

CPC classification number: H04B7/024 ,  H04B7/0413 ,  H04L1/0042 ,  H04L1/0068 ,  H04L1/0643 ,  H04L1/1819

Abstract: Techniques are provided for transmitting and receiving a mother code in an incremental redundancy hybrid automatic repeat-request protocol. A set of information bits corresponding to a message may be encoded and interleaved to produce the mother code. Each bit position of the mother code may be mapped to an output symbol, and each output symbol may be mapped to an antenna for transmission. One or more transmissions of symbols contained in the output symbols may be performed, where each transmission may include puncturing the mother code by selecting one or more symbols from the of output symbols, and transmitting each symbol in the one or more symbols on an antenna corresponding to that symbol. The mother code may be decoded, in part, by determining combinable bits contained within a set of received symbols, and computing one or more log-likelihood ratio values corresponding to each symbol in the set of received symbols.

Abstract translation: 提供了用于以增量冗余混合自动重复请求协议发送和接收母码的技术。 对应于消息的一组信息位可以被编码和交织以产生母码。 母码的每个比特位置可以被映射到输出符号，并且每个输出符号可以被映射到天线以进行传输。 可以执行输出符号中包含的符号的一个或多个传输，其中每个传输可以包括通过从输出符号中选择一个或多个符号来对母码进行穿刺，并且在天线上的一个或多个符号中发送每个符号 到那个符号。 可以部分地通过确定包含在一组接收到的符号内的可组合比特，以及计算与所接收的符号集合中的每个符号相对应的一个或多个对数似然比值来对母码进行解码。