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127 条记录 (耗时 0.02 秒)

    Noise estimation in communication receivers
    21.
    发明授权
    Noise estimation in communication receivers 有权
    通信接收机噪声估计

    公开(公告)号：US08526552B1

    公开(公告)日：2013-09-03

    申请号：US12831282

    申请日：2010-07-07

    申请人： Ronen Mayrench ,  Daniel Yellin ,  Yona Perets

    发明人： Ronen Mayrench ,  Daniel Yellin ,  Yona Perets

    IPC分类号： H03K5/01

    CPC分类号： H04L25/0228 ,  H04B17/345 ,  H04L1/0026

    摘要： A method includes receiving at a receiver a signal including reference symbols that is sent over a communication channel from a transmitter to the receiver. A response of the communication channel is estimated by applying one or more weighting values to the reference symbols. A noise correction factor is computed based on the weighting values. An estimate of a noise level in the received signal is computed based on the estimated response of the communication channel and the noise correction factor. The received signal is decoded based on the estimate of the noise level.

    摘要翻译： 一种方法包括在接收机处接收包括通过通信信道从发射机发射到接收机的参考符号的信号。 通过对参考符号应用一个或多个加权值来估计通信信道的响应。 基于加权值计算噪声校正因子。 基于通信信道的估计响应和噪声校正因子来计算接收信号中的噪声电平的估计。 接收到的信号根据噪声电平的估计被解码。

    EFFICIENT MIMO TRANSMISSION SCHEMES
    23.
    发明申请
    EFFICIENT MIMO TRANSMISSION SCHEMES 有权
    有效的MIMO传输方案

    公开(公告)号：US20100172424A1

    公开(公告)日：2010-07-08

    申请号：US12477152

    申请日：2009-06-03

    申请人： Yona Perets ,  Krishna Srikanth Gomadam ,  Adoram Erell ,  Daniel Yellin ,  Ezer Melzer

    发明人： Yona Perets ,  Krishna Srikanth Gomadam ,  Adoram Erell ,  Daniel Yellin ,  Ezer Melzer

    IPC分类号： H04L27/28

    CPC分类号： H04B7/0473 ,  H04L1/0009 ,  H04L1/0656 ,  H04L1/0675 ,  H04L5/0025

    摘要： A method for communication includes, in a transmitter having a first number of transmit antenna ports, setting an upper limit on a second number of spatial layers to be used by the transmitter to be less than the first number. An actual number of the spatial layers, which does not exceed the upper limit, is allocated for transmission to a given receiver. One or more streams of modulated symbols are mapped onto the allocated actual number of the spatial layers. The actual number of the spatial layers are transmitted from the transmitter to the given receiver.

    摘要翻译： 一种用于通信的方法包括：在具有第一数量的发射天线端口的发射机中，将发射机使用的第二数量的空间层的上限设置为小于第一数量。 空间层的实际数量（不超过上限）被分配用于传送给给定的接收机。 调制符号的一个或多个流被映射到所分配的实际数量的空间层上。 空间层的实际数量从发射机发射到给定的接收机。

    BALANCING CAPACITY BETWEEN LINK DIRECTIONS USING VARIABLE FEEDBACK RATES
    24.
    发明申请
    BALANCING CAPACITY BETWEEN LINK DIRECTIONS USING VARIABLE FEEDBACK RATES 有权
    使用可变反馈速率的链接方向之间的平衡能力

    公开(公告)号：US20090316610A1

    公开(公告)日：2009-12-24

    申请号：US12348003

    申请日：2009-01-01

    申请人： Daniel Yellin ,  Yona Perets ,  Itsik Bergel

    发明人： Daniel Yellin ,  Yona Perets ,  Itsik Bergel

    IPC分类号： H04J1/00 ,  H04W72/00 ,  H04M1/00 ,  H04B7/005

    CPC分类号： H04B7/0647 ,  H04B7/0417 ,  H04B7/0689

    摘要： A method for communication includes providing a first transceiver configured to communicate with a second transceiver over a bi-directional link having a first aggregation of frequencies that are assigned to carry first communication traffic in a first link direction from the first transceiver to the second transceiver and a second aggregation of frequencies that are assigned to carry second communication traffic in a second link direction from the second transceiver to the first transceiver. Communication feedback is transmitted from the first transceiver to the second transceiver communication feedback at an adaptive feedback rate. The feedback rate is determined so as to achieve a desired balance between the information carrying capacities of the first and second aggregations. An information carrying capacity of the second aggregation is controlled responsively to the communication feedback.

    摘要翻译： 一种用于通信的方法包括：提供第一收发器，被配置为通过双向链路与第二收发器进行通信，所述双向链路具有被分配用于携带从第一收发机到第二收发信机的第一链路方向上的第一通信业务的第一聚合频率， 被分配用于承载从第二收发机到第一收发器的第二链路方向上的第二通信业务的频率的第二聚合。 通信反馈以自适应反馈速率从第一收发器发送到第二收发器通信反馈。 确定反馈速率以便在第一和第二聚集的信息承载能力之间实现期望的平衡。 响应于通信反馈来控制第二聚合的信息承载能力。

    Correction of timing errors to enable long sleep times
    26.
    发明授权
    Correction of timing errors to enable long sleep times 有权
    修正定时错误，以延长睡眠时间

    公开(公告)号：US08504079B1

    公开(公告)日：2013-08-06

    申请号：US13601699

    申请日：2012-08-31

    申请人： Daniel Yellin ,  Rohen Mayrench ,  Yona Perets

    发明人： Daniel Yellin ,  Rohen Mayrench ,  Yona Perets

    IPC分类号： H04W68/00

    CPC分类号： H04W52/0206 ,  H04W52/0216 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264

    摘要： A mobile user equipment includes a user equipment clock and a dual mode time tracker. The clock periodically wakes up the user equipment. The dual mode time tracker uses a serving cell reference signal to correct timing errors of the user equipment clock with respect to a network clock while timing errors remain minimal and otherwise uses a serving cell synchronization signal to correct timing errors of the user equipment clock. The dual mode time tracker also sets a next wakeup time as a function at least of the size of the timing errors.

    摘要翻译： 移动用户设备包括用户设备时钟和双模式时间跟踪器。 时钟定时唤醒用户设备。 双模式时间跟踪器使用服务小区参考信号来校正用户设备时钟相对于网络时钟的定时误差，同时定时误差保持最小，否则使用服务小区同步信号来校正用户设备时钟的定时误差。 双模式时间跟踪器还将下一个唤醒时间设置为至少是定时误差的大小的函数。

    Method and apparatus of system scheduler
    27.
    发明授权
    Method and apparatus of system scheduler 有权
    系统调度器的方法和装置

    公开(公告)号：US08072941B2

    公开(公告)日：2011-12-06

    申请号：US12613122

    申请日：2009-11-05

    申请人： Guy Wolf ,  Daniel Yellin ,  Ilan Sutskover ,  Yona Perets ,  Nadav Shulman

    发明人： Guy Wolf ,  Daniel Yellin ,  Ilan Sutskover ,  Yona Perets ,  Nadav Shulman

    IPC分类号： H04W4/00 ,  H04B7/26

    CPC分类号： H04B7/0413 ,  H04B7/0452 ,  H04B7/0669 ,  H04B7/068 ,  H04B7/0697 ,  H04B7/12 ,  H04L1/0668 ,  H04L5/0007 ,  H04L5/0046

    摘要： Briefly, according to embodiments of the invention, there is provided a wireless communication system and a method to receive by a base station from a first mobile station a first chain of data symbols transmitted by at least two antennas and having a first transmit diversity, to receive from a second mobile station a second chain of data symbols transmitted by at least two antennas and having a second transmit diversity. Both first and second chains of data symbols are transmitted from the first and second mobile stations at the same time, modulated according to an Orthogonal Frequency Division Multiplexing (OFDM) scheme and encoded by a space time block codes scheme.

    摘要翻译： 简而言之，根据本发明的实施例，提供了一种无线通信系统和方法，用于由基站从第一移动台接收由至少两个天线发送并具有第一发射分集的第一数据符号链，并具有第一发射分集， 从第二移动台接收由至少两个天线发射并具有第二发射分集的第二数据符号链。 数据符号的第一和第二链同时从第一和第二移动站发送，根据正交频分复用（OFDM）方式进行调制，并由空时块编码方案编码。

    Device, system and method of multiple access transmission
    28.
    发明授权
    Device, system and method of multiple access transmission 有权
    多址传输的设备，系统和方法

    公开(公告)号：US07574214B2

    公开(公告)日：2009-08-11

    申请号：US11136476

    申请日：2005-05-25

    申请人： Yona Perets ,  Daniel Yellin ,  Doron Rainish ,  Ronen Mayrench ,  Yakir Ovadia

    发明人： Yona Perets ,  Daniel Yellin ,  Doron Rainish ,  Ronen Mayrench ,  Yakir Ovadia

    IPC分类号： H04Q7/20 ,  H04B17/00

    CPC分类号： H04L5/023 ,  H04L25/022 ,  H04L27/2608

    摘要： Briefly, some embodiments of the invention provide devices, systems and methods of wireless multiple access transmission. For example, a method in accordance with an embodiment of the invention may include estimating channel quality values of a set of pilot signals received at different, respective, frequency slots of an uplink channel; and allocating an uplink frequency band for the uplink channel based on the estimated channel quality values.

    摘要翻译： 简而言之，本发明的一些实施例提供无线多址传输的设备，系统和方法。 例如，根据本发明的实施例的方法可以包括估计在上行链路信道的不同的相应频率时隙处接收的一组导频信号的信道质量值; 以及基于估计的信道质量值为所述上行链路信道分配上行链路频带。

    Iterative decoding process
    30.
    发明授权
    Iterative decoding process 失效
    迭代解码过程

    公开(公告)号：US07260766B2

    公开(公告)日：2007-08-21

    申请号：US10986057

    申请日：2004-11-12

    申请人： Sharon Levy ,  Daniel Yellin ,  Yona Perets

    发明人： Sharon Levy ,  Daniel Yellin ,  Yona Perets

    IPC分类号： H03M3/03 ,  H03M3/00

    CPC分类号： H03M13/296 ,  H03M13/2948 ,  H03M13/2966 ,  H03M13/2972 ,  H03M13/2975 ,  H03M13/4115

    摘要： An apparatus and a communication device including a turbo decoder to decode a block of encoded data bits that includes information bits and error detection code bits. The turbo decoder is able to produce a decoded block which includes decoded information bits and decoded error detection code bits. The Turbo decoder is able to determine from the decoded error detection code bits and calculated error detection code bits possible error patterns of the error detection code bits and is able to generate from the possible error patterns and/or from the error detection code bits reliability metrics.

    摘要翻译： 一种装置和通信装置，包括用于解码包括信息比特和错误检测码比特的编码数据比特块的turbo解码器。 turbo解码器能够产生包括解码信息比特和解码错误检测码比特的解码块。 Turbo解码器能够根据解码的错误检测码位和计算出的错误检测码位确定错误检测码位的可能的错误模式，并且能够从可能的错误模式和/或从错误检测码位产生可靠性度量 。