公开(公告)号：US20110154145A1

公开(公告)日：2011-06-23

申请号：US12644149

申请日：2009-12-22

Applicant: Yuval Lomnitz

Inventor： Yuval Lomnitz

IPC: H04L1/18 ,  G06F11/14

CPC classification number: H04L1/1867 ,  H04L1/0002 ,  H04L1/0031 ,  H04L1/1671 ,  H04L1/1819

Abstract: Briefly, in accordance with one or more embodiments, a data packet comprising a first number of bits encoded over a first number of symbols is transmitted to a receiver. If the receiver did not successfully decode the data packet, a negative acknowledgment message is received along with metric information for the transmission. The data packet encoded with a varying number of symbols and transmitted to the receiver, wherein the varying number of symbols is a function of the metric information for the first transmission.

Abstract translation: 简而言之，根据一个或多个实施例，将包括在第一数量符号上编码的第一数量位的数据分组发送到接收机。 如果接收机没有成功解码数据分组，则接收到否定的确认消息以及传输的度量信息。 数据分组用不同数量的符号编码并被发送到接收机，其中变化数量的符号是用于第一次传输的度量信息的函数。

公开(公告)号：US20110069773A1

公开(公告)日：2011-03-24

申请号：US12586620

申请日：2009-09-23

Applicant: Ayelet Doron ,  Rotem Avivi ,  Yuval Lomnitz

Inventor： Ayelet Doron ,  Rotem Avivi ,  Yuval Lomnitz

IPC: H04B7/02

CPC classification number: H04B7/0634 ,  H04B7/0417 ,  H04B7/0639 ,  H04L1/06

Abstract: A method of identifying a precoding matrix corresponding to a wireless network channel comprises the steps of identifying a capacity metric that includes an identity matrix, approximating the capacity metric using an approximation metric that ignores the identity matrix, using the approximation metric to search over all matrices in a matrix codebook in order to identify a particular precoding matrix that increases a capacity of the wireless network channel, and transmitting across the wireless network channel a matrix index that corresponds to the particular precoding matrix. Additional techniques for identifying precoding matrices are also described herein, as is a method of approximating a capacity of a wireless network channel in a wireless network.

Abstract translation: 识别与无线网络信道相对应的预编码矩阵的方法包括以下步骤：使用近似度量来搜索所有矩阵来识别包括单位矩阵的容量度量，使用忽略单位矩阵的近似度量逼近容量度量 在矩阵码本中，为了识别增加无线网络信道的容量的特定预编码矩阵，以及在无线网络信道上发送对应于特定预编码矩阵的矩阵索引。 本文还描述了用于识别预编码矩阵的附加技术，以及近似无线网络中的无线网络信道的容量的方法。

公开(公告)号：US07606139B2

公开(公告)日：2009-10-20

申请号：US11635886

申请日：2006-12-08

Applicant: Eyal Bick ,  Uri Perlmutter ,  Yuval Lomnitz

Inventor： Eyal Bick ,  Uri Perlmutter ,  Yuval Lomnitz

IPC: H04J11/00

CPC classification number: H04L27/2656 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2605 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2686

Abstract: A method for detecting a preamble location in a multiple preamble OFDM (Orthogonal Frequency Division Multiplexing) system is disclosed. An OFDM signal is generated with a plurality of frames, and each of the frames includes symbols and a predetermined preamble symbol. A maximum FDDC (Frequency Domain Differential Correlator) value is computed for each of the symbols in some of the frames. The preamble location in a frame is determined by summing the maximum FDDC value for each symbol at a same frame location in consecutive frames of the OFDM signal.

Abstract translation: 公开了一种用于检测多前同步码OFDM（正交频分复用）系统中的前导码位置的方法。 利用多个帧生成OFDM信号，并且每个帧包括符号和预定的前导码符号。 对于一些帧中的每个符号计算最大FDDC（频域差分相关器）值。 通过在OFDM信号的连续帧中的相同帧位置处对每个符号的最大FDDC值求和来确定帧中的前导码位置。

公开(公告)号：US20130322583A1

公开(公告)日：2013-12-05

申请号：US13995705

申请日：2011-12-28

Applicant: Ayelet Doron ,  Yuval Lomnitz

Inventor： Ayelet Doron ,  Yuval Lomnitz

IPC: H04L25/02

CPC classification number: H04L25/0202 ,  H04L25/0212 ,  H04L25/0224 ,  H04L25/0256

Abstract: Disclosed is an improved channel estimation by post-processing of the channel response that is generated by a Golay correlator The processing is done using time-domain operations such as gating and filtering. Gating is performed on the estimated channel response taps in order to reduce the noise level. Pre-filtering the channel response through a filter matched to the transmitted pulse-shape improves the probability of detecting the channel peaks. Post-filtering the processed channel impulse response to eliminate the high frequency effects that are added by the windowing and gating operations.

Abstract translation: 公开了通过后处理由格雷相关器产生的信道响应的改进的信道估计。该处理使用诸如门控和滤波的时域操作来完成。 对估计的信道响应抽头进行门控，以降低噪声水平。 通过与发送的脉冲形状匹配的滤波器对信道响应进行预滤波，提高了检测信道峰值的可能性。 对经处理的信道脉冲响应进行后处理，以消除由窗口和门控操作添加的高频效应。

公开(公告)号：US20120250808A1

公开(公告)日：2012-10-04

申请号：US13074935

申请日：2011-03-29

Applicant: Yuval Lomnitz ,  Tom Harel ,  Ayelet Doron

Inventor： Yuval Lomnitz ,  Tom Harel ,  Ayelet Doron

IPC: H03D1/04

CPC classification number: H04L25/0256 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/022 ,  H04L25/0232

Abstract: An apparatus may comprise a channel estimation architecture for wireless communications. Other embodiments are described and claimed.

Abstract translation: 装置可以包括用于无线通信的信道估计架构。 描述和要求保护其他实施例。

公开(公告)号：US07979032B2

公开(公告)日：2011-07-12

申请号：US11959347

申请日：2007-12-18

Applicant: Yuval Lomnitz

Inventor： Yuval Lomnitz

IPC: H04B17/00

CPC classification number: H04B17/345 ,  H04B17/26

Abstract: Methods, systems and apparatus for estimating statistical properties of noise in modulated data carrier signals represented by modulated data symbols are disclosed. The method comprises generating an instantaneous estimate of the statistical property of noise from the received modulated data symbols on a sample by sample basis and applying a compensation function to the instantaneous estimate. The method further comprises averaging an output of the compensation function to determine the estimated statistical property of noise.

Abstract translation: 公开了用于估计由调制数据符号表示的调制数据载波信号中的噪声的统计特性的方法，系统和装置。 该方法包括从采样的基础上接收的调制数据符号产生噪声的统计特性的瞬时估计，并将补偿函数应用于瞬时估计。 该方法还包括对补偿函数的输出进行平均以确定噪声的估计的统计特性。

公开(公告)号：US20110044266A1

公开(公告)日：2011-02-24

申请号：US12644090

申请日：2009-12-22

Applicant: Shweta Shrivastava ,  Rath Vannithamby ,  Yuval Lomnitz ,  Aran Bergman ,  Tom Harel

Inventor： Shweta Shrivastava ,  Rath Vannithamby ,  Yuval Lomnitz ,  Aran Bergman ,  Tom Harel

IPC: H04W72/04

CPC classification number: H04W72/085 ,  G08C17/02 ,  G08C2201/41 ,  H04L61/2015 ,  H04M7/0069 ,  H04W8/26 ,  H04W72/042 ,  H04W72/0453 ,  H04W80/04 ,  H04W88/06 ,  Y02D70/1224 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/168 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/26

Abstract: A single format of MAC control message may be used for the addition, deletion, or rearrangement of users in a group within a wireless network. In some cases, a change in the nature of the group may be implemented immediately upon receipt of a positive acknowledgement. A mobile station may determine its ACID without maintaining information about the previous ACID or startup frame.

Abstract translation: MAC控制消息的单一格式可以用于无线网络内的组中的用户的添加，删除或重新排列。 在某些情况下，在收到肯定确认后，可能会立即实施该组的性质变更。 移动台可以在不维护关于先前ACID或启动帧的信息的情况下确定其ACID。

公开(公告)号：US20100329160A1

公开(公告)日：2010-12-30

申请号：US12459255

申请日：2009-06-26

Applicant: Rotem Avivi ,  Yuval Lomnitz ,  Uri Perlmutter

Inventor： Rotem Avivi ,  Yuval Lomnitz ,  Uri Perlmutter

IPC: H04B7/00 ,  H04B7/02

CPC classification number: H04B7/0689 ,  H04B7/0628 ,  H04B7/0697

Abstract: An embodiment of the present invention provides an apparatus that may include a transceiver operable to communicate with a receiver in a wireless network and adapted to select an optimal mode for transmissions, wherein the receiver estimates the optimal mode and feeds it back to the transceiver which changes a transmitted mode accordingly and wherein the optimal mode is based on a predetermined metric based on a performance equation that puts a threshold to separate between a high correlated signal to low correlation signal.

Abstract translation: 本发明的实施例提供了一种装置，其可以包括可操作以与无线网络中的接收机通信并适于选择用于传输的最佳模式的收发机，其中所述接收机估计所述最佳模式并将其馈送回所述收发器，所述收发器改变 相应地发送模式，并且其中最优模式基于基于将阈值分离在高相关信号与低相关信号之间的性能方程式的预定度量。

公开(公告)号：US07720166B2

公开(公告)日：2010-05-18

申请号：US11392931

申请日：2006-03-30

Applicant: Yuval Lomnitz ,  Yang-Seok Choi

Inventor： Yuval Lomnitz ,  Yang-Seok Choi

IPC: H04L23/02 ,  H04L5/12

CPC classification number: H04L25/03229 ,  H04L25/03318 ,  H04L25/03968

Abstract: Embodiments of the present invention provide a method, apparatus and system of decoding spatially multiplexed signals. In some demonstrative embodiments the method may include, for example, determining one or more hypothetical values of a transmitted signal of a set of transmitted signals based on one or more respective sets of hypothetical values assigned to a subset of the set of transmitted signals. Other embodiments are described and claimed.

Abstract translation: 本发明的实施例提供对空间复用信号进行解码的方法，装置和系统。 在一些演示实施例中，该方法可以包括例如基于分配给该组发送信号的子集的一个或多个相应的假设值组来确定一组发送信号的发送信号的一个或多个假设值。 描述和要求保护其他实施例。

公开(公告)号：US20080137527A1

公开(公告)日：2008-06-12

申请号：US11635886

申请日：2006-12-08

Applicant: Eyal Bick ,  Uri Perlmutter ,  Yuval Lomnitz

Inventor： Eyal Bick ,  Uri Perlmutter ,  Yuval Lomnitz

IPC: H04J11/00 ,  H04L27/28

CPC classification number: H04L27/2656 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2605 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2686

Abstract: A method for detectable a pre-amble location in a multiple preamble OFDM (Orthogonal Frequency Division Multiplexing) system is disclosed. An OFDM signal is generated with a plurality of frames, and each of the frames includes symbols and a predetermined preamble symbol. A maximum FDDC (Frequency Domain Differential Correlator) value is computed for each of the symbols in some of the frames. The pre-amble location in a frame is determined by summing the maximum FDDC value for each symbol at a same frame location in consecutive frames of the OFDM signal.

Abstract translation: 公开了一种在多前同步码OFDM（正交频分复用）系统中可检测前同步码头位置的方法。 利用多个帧生成OFDM信号，并且每个帧包括符号和预定的前导码符号。 对于一些帧中的每个符号计算最大FDDC（频域差分相关器）值。 通过在OFDM信号的连续帧中的相同帧位置处对每个符号的最大FDDC值求和来确定帧中的前同步码头位置。