公开(公告)号：US08576958B2

公开(公告)日：2013-11-05

申请号：US13185526

申请日：2011-07-19

申请人： Maxim Gotman ,  Avner Dor ,  Eran Richardson ,  Assaf Touboul

发明人： Maxim Gotman ,  Avner Dor ,  Eran Richardson ,  Assaf Touboul

IPC分类号： H04L27/06

CPC分类号： H04L1/0054 ,  H03M13/3746 ,  H03M13/6325 ,  H03M13/6525 ,  H03M13/653 ,  H03M13/6544 ,  H04L1/005 ,  H04L1/0052

摘要： A method for soft remodulation in a receiver of transmissions over a wireless telecommunication system, the method including obtaining from a FEC decoder a-posteriori LLR values, converting the a-posteriori LLR values into bit probabilities and computing improved soft symbols estimates as expected values using the bit probabilities in a recursive algorithm. Preferably, the step of converting is implemented using a pre-computed Look Up Table (LUT). Preferably, the step of computing is implemented in a Multiplier-Accumulator having a SIMD structure.

摘要翻译： 一种用于通过无线电信系统的传输接收机中的软重新调制的方法，所述方法包括从FEC解码器获得后验LLR值，将后验LLR值转换为比特概率，并将改进的软符号估计作为预期值使用 递归算法中的位概率。 优选地，使用预先计算的查找表（LUT）来实现转换步骤。 优选地，计算步骤在具有SIMD结构的乘法器 - 累加器中实现。

公开(公告)号：US08406330B2

公开(公告)日：2013-03-26

申请号：US12838527

申请日：2010-07-19

申请人： Maxim Gotman ,  Meir Tsadik ,  Eran Richardson ,  Assaf Touboul

发明人： Maxim Gotman ,  Meir Tsadik ,  Eran Richardson ,  Assaf Touboul

IPC分类号： H04L5/12 ,  H04L23/02

CPC分类号： H04L1/0052 ,  H04L1/0071 ,  H04L1/1812 ,  H04L1/1845

摘要： A method and system for processing LLRs, in a receiver, of transmissions over a wireless telecommunication system, the method including receiving multiple soft symbols, selecting a set of appropriate instructions for LLR calculation for the soft symbols, arranging the soft symbols in a register of a processor according to the selected instructions, selecting an appropriate single instruction from the set of instructions to be implemented by the processor using the soft symbols in the register as operands, and calculating, by a computation unit, multiple LLR values for the multiple soft symbols, in parallel, by means of the selected instruction.

摘要翻译： 一种在无线电信系统中在接收机中处理LLR的方法和系统，所述方法包括接收多个软符号，为软符号选择用于LLR计算的适当指令集合，将软符号排列在 根据所选择的指令的处理器，从所述处理器使用所述寄存器中的所述软符号作为操作数，从所述指令集中选择适当的单个指令，并且由计算单元计算所述多个软符号的多个LLR值 并行地通过所选择的指令。

公开(公告)号：US08433968B2

公开(公告)日：2013-04-30

申请号：US12728310

申请日：2010-03-22

申请人： Maxim Gotman ,  Assaf Touboul

发明人： Maxim Gotman ,  Assaf Touboul

IPC分类号： H03M13/00

CPC分类号： H04L1/1845

摘要： A receiver and method for HARQ combining of a received codeword in a receiver with a FEC decoder, the method including computing Log Likelihood Ratios (LLRs) of demodulated soft symbols of the received codeword and outputting the LLRs as a-priori soft bits; performing iterative decoding of the a-priori soft bits in a Forward Error Correction (FEC) decoder; outputting a posteriori soft bits of the a priori soft bits of the received codeword from the FEC decoder; and HARQ combining the a posteriori soft bits with a retransmission of the received codeword.

摘要翻译： 一种用于将接收机中的接收码字与FEC解码器进行HARQ组合的接收机和方法，所述方法包括计算所接收的码字的解调的软符号的对数似然比（LLR），并将该LLR作为先验软比特输出; 执行前向纠错（FEC）解码器中的先验软比特的迭代解码; 从所述FEC解码器输出所接收的码字的先验软比特的后验软比特; 以及将后验软比特与所接收的码字的重传相结合的HARQ。

公开(公告)号：US08457249B2

公开(公告)日：2013-06-04

申请号：US13088364

申请日：2011-04-17

申请人： Maxim Gotman ,  Tal Oved ,  Oren Matsrafi ,  Assaf Touboul

发明人： Maxim Gotman ,  Tal Oved ,  Oren Matsrafi ,  Assaf Touboul

IPC分类号： H04K1/02

CPC分类号： H04L27/2624

摘要： A method and device for reducing Peak-to-Average Power Ratio (PAPR) of a transmitted signal in a wireless telecommunication system utilizing CFR technique, the method including performing peak-windowed clipping of a transmitted signal using at least two cascaded clipping stages and individually configuring parameters for each clipping stage before performing the peak-windowed clipping.

摘要翻译： 一种利用CFR技术在无线电信系统中降低发射信号的峰均功率比（PAPR）的方法和装置，该方法包括使用至少两个级联剪辑级和单独地对发射信号进行峰值窗口限幅 在执行峰值窗口剪辑之前，为每个剪辑级配置参数。

公开(公告)号：US08780941B2

公开(公告)日：2014-07-15

申请号：US12919023

申请日：2009-01-08

申请人： Avner Dor ,  Assaf Touboul ,  Oz Barak

发明人： Avner Dor ,  Assaf Touboul ,  Oz Barak

IPC分类号： H04J1/00 ,  H04L5/06

CPC分类号： H04L5/06 ,  H04B7/0854 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0246 ,  H04L25/0256 ,  H04L27/2647

摘要： Methods and apparatus for reducing complexity of MMSE computations in a receiver are disclosed. According to these methods and apparatus, a first MMSE matrix is computed for a first sub-carrier in a pre-defined group of sub-carriers of a received transmission frame at a receiver. The first MMSE is based on a pilot signal of the first sub-carrier. The first MMSE matrix may then be phase shifted to compute a second MMSE matrix for a second sub-carrier in the group, the phase shifting based on a variation in column and row between the pilot signal of the first sub-carrier and a symbol of the second sub-carrier of the transmission frame.

摘要翻译： 公开了一种用于降低接收机中MMSE计算的复杂度的方法和装置。 根据这些方法和装置，针对在接收机处的接收到的传输帧的预定义的子载波组中的第一子载波来计算第一MMSE矩阵。 第一MMSE基于第一子载波的导频信号。 然后可以将第一MMSE矩阵相移以对组中的第二子载波计算第二MMSE矩阵，基于第一子载波的导频信号和第一子载波的导频信号之间的行和列的变化， 传输帧的第二子载波。

公开(公告)号：US07970355B2

公开(公告)日：2011-06-28

申请号：US11949791

申请日：2007-12-04

申请人： Oz Barak ,  Assaf Touboul ,  Avner Dor

发明人： Oz Barak ,  Assaf Touboul ,  Avner Dor

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04B7/0413 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/0854

摘要： The present invention describes a method of closed loop MIMO communication utilizing implicit or explicit channel state information (CSI) at the transmitter and the receiver. The transmitter performs linear pre-processing (for example, QR decomposition or bi-diagonal decomposition or Jacobi rotations, and/or sporadic SVDs) on a channel matrix, and the receiver mitigates the mutual interference between the streams by performing MMSE processing on the received signals. The MMSE matrix is computed with respect to the processed channel that may estimated by the receiver through preprocessed pilot signals. The transmitters preprocessing is of much lesser cost and complexity than full SVD.

摘要翻译： 本发明描述了在发射机和接收机处利用隐式或显式信道状态信息（CSI）的闭环MIMO通信的方法。 发射机在信道矩阵上执行线性预处理（例如，QR分解或双对角分解或者雅可比旋转和/或散射SVD），并且接收器通过对接收到的信号执行MMSE处理来减轻流之间的相互干扰 信号。 相对于经由预处理的导频信号可以由接收机估计的处理的信道来计算MMSE矩阵。 发射机预处理的成本和复杂度远低于全SVD。

公开(公告)号：US09049699B2

公开(公告)日：2015-06-02

申请号：US12494333

申请日：2009-06-30

申请人： Assaf Touboul ,  Oz Barak

发明人： Assaf Touboul ,  Oz Barak

IPC分类号： H04W72/04 ,  H04W92/20

CPC分类号： H04W72/04 ,  H04W92/20

摘要： A method and system for providing wireless backhaul in a wireless radio access network having an overall allocated access bandwidth for access communication, the system including a radio access base station designed for out-of-band backhaul, the base station including an access transceiver communicating over an allocated frequency channel within the overall allocated access bandwidth, and an in-band backhaul unit coupled to the access base station including means for in-band communication of backhaul of the access base station.

摘要翻译： 一种用于在具有用于接入通信的总体分配的接入带宽的无线无线电接入网络中提供无线回程的方法和系统，所述系统包括为带外回程而设计的无线电接入基站，所述基站包括通信的接入收发信机 在总分配的接入带宽内的分配的频率信道，以及耦合到接入基站的带内回程单元，包括用于接入基站的回程的带内通信的装置。

公开(公告)号：US08831541B2

公开(公告)日：2014-09-09

申请号：US12637775

申请日：2009-12-15

申请人： Max Gotman ,  Assaf Touboul ,  Oz Barak

发明人： Max Gotman ,  Assaf Touboul ,  Oz Barak

IPC分类号： H03C7/02 ,  H04B7/02 ,  H04B1/04 ,  H04L5/00 ,  H04B7/06

CPC分类号： H04B7/0697 ,  H04L5/0023 ,  H04L5/0044

摘要： A wireless telecommunication system and method including at least two transmit antennae and means for implementing a downlink switched sub-channels diversity scheme during transmission. The method includes splitting a total bandwidth allocated for transmission of a transmitted signal to individual sub-channels or groups of sub-channels; boosting each of the sub-channels or groups of sub-channels; and routing each of the sub-channels or groups of sub-channels to a different transmit antenna.

摘要翻译： 一种无线电信系统和方法，包括至少两个发射天线和用于在传输期间实现下行链路切换子信道分集方案的装置。 该方法包括将分配用于传输发射信号的总带宽分成各个子信道或子信道组; 提升每个子频道或子频道组; 并且将每个子信道或子信道组路由到不同的发射天线。

公开(公告)号：US08605687B2

公开(公告)日：2013-12-10

申请号：US11773452

申请日：2007-07-05

申请人： Oz Barak ,  Assaf Touboul ,  Guy Wolf

发明人： Oz Barak ,  Assaf Touboul ,  Guy Wolf

IPC分类号： H04B7/216 ,  H04K1/10

CPC分类号： H04L5/0051 ,  H04L5/0016 ,  H04L25/0226 ,  H04L27/2613

摘要： A method of using pilot signals in a wireless communication network including encoding pilot signals, and transmitting the encoded pilot signals over an in-band backhaul link between two nodes in the network. Preferably, the pilot signals are encoded with a CDMA codeword associated with a link. The pilot signals can be decoded to permit estimation of a channel and interference attributable to each link.

摘要翻译： 一种在包括编码导频信号的无线通信网络中使用导频信号的方法，以及通过网络中的两个节点之间的带内回程链路发送编码的导频信号。 优选地，导频信号用与链路相关联的CDMA码字进行编码。 可以对导频信号进行解码以允许对每个链路归因的信道估计和干扰。

公开(公告)号：US07620370B2

公开(公告)日：2009-11-17

申请号：US11623110

申请日：2007-01-15

申请人： Oz Barak ,  Assaf Touboul

发明人： Oz Barak ,  Assaf Touboul

IPC分类号： H04B7/00 ,  H04B15/00

CPC分类号： H04W28/18 ,  H04B7/0417 ,  H04W16/10 ,  H04W16/18 ,  H04W52/42 ,  H04W72/082 ,  H04W84/047 ,  H04W88/08 ,  H04W92/20

摘要： A WiMAX network and communication method, the network including a plurality of WiMAX nodes deployed in micro or pico cells for providing access service to a plurality of mobile subscribers, a plurality of these nodes being arranged in a cluster, one of the nodes in each cluster being a feeder node coupled to a core network, the nodes in each cluster being coupled for multi-hop transmission to the feeder node. According to a preferred embodiment, each node includes a transceiver with associated modem, an antenna arrangement coupled to the modem and arranged for multiple concurrent transmissions, and a MAC controller for controlling the transceiver, modem and antenna arrangement for providing both access and backhaul communication.

摘要翻译： 一种WiMAX网络和通信方法，所述网络包括部署在微微小区或微微小区中的多个WiMAX节点，用于向多个移动用户提供接入服务，多个这些节点被布置在群集中，每个群集中的一个节点 作为耦合到核心网络的馈电节点，每个集群中的节点被耦合用于到馈线节点的多跳传输。 根据优选实施例，每个节点包括具有相关联的调制解调器的收发器，耦合到调制解调器并被布置用于多个并发传输的天线布置，以及用于控制收发器，调制解调器和天线布置以用于提供访问和回程通信的MAC控制器。