公开(公告)号：US08634495B2

公开(公告)日：2014-01-21

申请号：US13589511

申请日：2012-08-20

申请人： Haim Harel ,  Phil F. Chen ,  Sherwin J. Wang ,  Eduardo Abreu

发明人： Haim Harel ,  Phil F. Chen ,  Sherwin J. Wang ,  Eduardo Abreu

IPC分类号： H04L27/00

CPC分类号： H04B7/0682 ,  H04B7/0623 ,  H04W52/42

摘要： Communication is performed for a first communication device having a set of antenna elements. A quality-indication signal is received from a second communication device (e.g., a basestation). A complex weighting is calculated based on the quality-indication signal. A pre-transmission signal is modified based on the complex transmit diversity weighting to produce a set of modified-pre-transmission signals, wherein the modifications are symmetric by making approximately half the magnitude of the transmit diversity modification to one signal in a first direction, and approximately half the magnitude of the transmit diversity modification to the other signal in a second direction, opposite the first direction. Each modified pre-transmission signal from the set of modified-pre-transmission signals is uniquely associated with an antenna element from the set of antenna elements. The set of modified-pre-transmission signals is sent from the set of antenna elements to produce a transmitted signal.

摘要翻译： 对具有一组天线元件的第一通信设备执行通信。 从第二通信设备（例如，基站）接收质量指示信号。 基于质量指示信号计算复数加权。 基于复合发射分集加权来修改预发射信号以产生一组修改预传输信号，其中通过使发射分集修改的大致一半在一个第一方向上的一个信号，所述修改是对称的， 以及在与第一方向相反的第二方向上的另一信号的发射分集修改的大约一半的幅度。 来自修改后的预传输信号的每个经修改的预发射信号与天线元件集合中的天线元件唯一地相关联。 经修改的预传输信号的集合从天线元件组发送以产生发射信号。

公开(公告)号：US08249187B2

公开(公告)日：2012-08-21

申请号：US12766725

申请日：2010-04-23

申请人： Haim Harel ,  Phil F. Chen ,  Sherwin J. Wang ,  Eduardo Abreu

发明人： Haim Harel ,  Phil F. Chen ,  Sherwin J. Wang ,  Eduardo Abreu

IPC分类号： H04L27/00

CPC分类号： H04B7/0682 ,  H04B7/0623 ,  H04W52/42

摘要： Communication is performed for a first communication device having a set of antenna elements. A quality-indication signal is received from a second communication device (e.g., a basestation). A complex weighting is calculated based on the quality-indication signal. A pre-transmission signal is modified based on the complex transmit diversity weighting to produce a set of modified-pre-transmission signals, wherein the modifications are symmetric by making approximately half the magnitude of the transmit diversity modification to one signal in a first direction, and approximately half the magnitude of the transmit diversity modification to the other signal in a second direction, opposite the first direction. Each modified pre-transmission signal from the set of modified-pre-transmission signals is uniquely associated with an antenna element from the set of antenna elements. The set of modified-pre-transmission signals is sent from the set of antenna elements to produce a transmitted signal.

摘要翻译： 对具有一组天线元件的第一通信设备执行通信。 从第二通信设备（例如，基站）接收质量指示信号。 基于质量指示信号计算复数加权。 基于复合发射分集加权来修改预发射信号以产生一组修改预传输信号，其中通过使发射分集修改的大致一半在一个第一方向上的一个信号，所述修改是对称的， 以及在与第一方向相反的第二方向上的另一信号的发射分集修改的大约一半的幅度。 来自修改后的预传输信号的每个经修改的预发射信号与天线元件集合中的天线元件唯一地相关联。 经修改的预传输信号的集合从天线元件组发送以产生发射信号。

公开(公告)号：US07949069B2

公开(公告)日：2011-05-24

申请号：US11976722

申请日：2007-10-26

申请人： Haim Harel ,  Yair Karmi ,  Wei Sun

发明人： Haim Harel ,  Yair Karmi ,  Wei Sun

IPC分类号： H04K1/02

CPC分类号： H04B7/0623

摘要： A method, system and apparatus using hybrid automatic repeat-request (HARQ) to enhance a system throughput in a transmit diversity system. Embodiments of the present invention may include a method including receiving a quality-indication signal such as a HARQ from the base station, calculating a complex weighting based on the quality-indication signal, modifying a pre-transmission signal based on the complex weighting to produce a plurality of modified pre-transmission signals, each modified pre-transmission signal from the plurality modified pre-transmission signals being uniquely associated with an antenna element from a plurality antenna elements of a mobile device, and sending the plurality of modified pre-transmission signals from the plurality of antenna elements to produce an effective combined transmitted signal, the complex weighting being associated with a total power of the transmitted signal and at least one from a phase rotation and a power ratio associated with each antenna element from the plurality of antenna elements.

摘要翻译： 一种使用混合自动重复请求（HARQ）来增强发射分集系统中的系统吞吐量的方法，系统和装置。 本发明的实施例可以包括一种方法，包括从基站接收诸如HARQ的质量指示信号，基于质量指示信号计算复加权，基于复加权修改预发送信号以产生 多个修改的预发送信号，来自多个修改的预发送信号的每个修改的预发射信号与来自移动设备的多个天线元件的天线元件唯一相关联，并且发送所述多个修改的预发射信号 从所述多个天线元件产生有效的组合发射信号，所述复加权与所述发射信号的总功率和来自所述多个天线元件的与每个天线元件相关联的相位旋转和功率比的至少一个相关联 。

公开(公告)号：US07945222B2

公开(公告)日：2011-05-17

申请号：US12048832

申请日：2008-03-14

申请人： Haim Harel ,  Kenneth Kludt

发明人： Haim Harel ,  Kenneth Kludt

IPC分类号： H04B1/02 ,  H04K3/00

CPC分类号： H04B7/063 ,  H04B7/0689 ,  H04W52/221 ,  H04W52/42

摘要： A receiver, or base station, may calculate the signal quality improvement based on a change in a diversity control parameter, for example, a phase difference or a power ratio among two or more antennas, by comparing a received signal power level to an expected power level, assuming no change in fading characteristics at the previous timeslot. This method may increase the amount of information communicated between the base station and the mobile unit, and may reduce feedback response time and/or provide for more efficient feedback for transmit diversity systems.

摘要翻译： 接收器或基站可以通过将接收信号功率电平与预期功率进行比较，来基于分集控制参数的变化（例如，两个或更多个天线之间的相位差或功率比）来计算信号质量改善 水平，假设前一个时期的衰落特征没有变化。 该方法可以增加在基站和移动单元之间传送的信息量，并且可以减少反馈响应时间和/或为发射分集系统提供更有效的反馈。

公开(公告)号：US07783267B1

公开(公告)日：2010-08-24

申请号：US11159646

申请日：2005-06-23

申请人： Haim Harel ,  Yair Karmi

发明人： Haim Harel ,  Yair Karmi

IPC分类号： H04B17/00 ,  H03C1/62

CPC分类号： H04W52/42 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/002 ,  H04L1/0026 ,  H04W52/221 ,  H04W52/248

摘要： Communicating a signal includes establishing a quality indicator at a first communication device that has antenna elements. The quality indicator indicates the quality of communication links between the first communication device and a second communication device. A modification describing an adjustment of a modulation feature is determined according to the quality indicator. The availability of the quality indicator is established. Modulation of a subset of signals in accordance with the determined modification is initiated in response to establishing the availability of the quality indicator. The antenna elements send the signals to yield a transmitted signal.

摘要翻译： 通信信号包括在具有天线元件的第一通信设备上建立质量指示符。 质量指示符指示第一通信设备和第二通信设备之间的通信链路的质量。 根据质量指标确定描述调制特征的调整的修改。 确定质量指标的可用性。 响应于确定质量指示符的可用性，启动根据确定的修改的信号子集的调制。 天线元件发送信号以产生发射信号。

公开(公告)号：US07616930B2

公开(公告)日：2009-11-10

申请号：US11136020

申请日：2005-05-24

申请人： Yair Karmi ,  Haim Harel ,  Kenneth A. Kludt

发明人： Yair Karmi ,  Haim Harel ,  Kenneth A. Kludt

IPC分类号： H04B1/00 ,  H04B7/00 ,  H04B17/02

CPC分类号： H04B7/0632

摘要： Calculating a phase adjustment includes establishing a current phase adjustment for a signal transmitted from a modifying communication device to a feedback communication device. A control signal is received. The control signal comprises windows communicating power indicators that reflect the power of the signal. A previous window communicates power indicators reflecting the power of the signal, and a current window communicates current power indicators reflecting the power of the signal. A previous power trend is estimated from previous power indicators, and a current power trend is estimated from current power indicators. A power trend change is determined from the previous power trend and the current power trend, and a phase increment is determined in accordance with the power trend change. A next phase adjustment is calculated from the current phase adjustment and the phase increment.

摘要翻译： 计算相位调整包括为从修改通信设备发送到反馈通信设备的信号建立当前相位调整。 接收控制信号。 控制信号包括反映信号功率的通信功率指示器的窗口。 以前的窗口传达反映信号功率的功率指示器，当前窗口通信反映信号功率的当前功率指示器。 以前的电力趋势是从以前的电力指标估计的，目前的电力趋势是根据当前电力指标估计的。 电力趋势变化根据先前的电力趋势和当前的电力趋势确定，相位增量根据电力趋势变化确定。 从当前相位调整和相位增量计算下一相位调整。

公开(公告)号：US07558591B2

公开(公告)日：2009-07-07

申请号：US10963046

申请日：2004-10-12

申请人： Qing Li ,  William Reinisch ,  Yingxue Li ,  Haim Harel

发明人： Qing Li ,  William Reinisch ,  Yingxue Li ,  Haim Harel

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/54

摘要： Determining a power control group boundary includes receiving a plurality of samples having power control groups, where each power control group corresponds to a time period. The following are repeated for a predetermined number of iterations: a window is set at a point of a sample; a number of power control bits within the window at the point is determined; and the window is moved to a point of a next sample. A point at which the window has the largest number of power control bits is identified. A power control group boundary is determined in accordance with the window at the identified point.

摘要翻译： 确定功率控制组边界包括接收具有功率控制组的多个样本，其中每个功率控制组对应于时间段。 对于预定次数的迭代重复以下操作：在样本点设置窗口; 确定该点内窗口内的多个功率控制位; 并将窗口移动到下一个样本的点。 识别窗口具有最大数量的功率控制位的点。 根据识别点处的窗口确定功率控制组边界。

公开(公告)号：US20080205551A1

公开(公告)日：2008-08-28

申请号：US11711643

申请日：2007-02-28

申请人： Wai Hon Lo ,  Dilek Barlas ,  Haim Harel ,  Kenneth Kludt ,  Yair Karmi

发明人： Wai Hon Lo ,  Dilek Barlas ,  Haim Harel ,  Kenneth Kludt ,  Yair Karmi

IPC分类号： H04L27/20

CPC分类号： H04B7/0682

摘要： Embodiments of the present invention include a method and apparatus for modifying a transmit diversity signal by control of at least a relative parameter, for example, phase difference, in a first signal relative to at least one second signal using various switching modules or techniques. In some embodiments of the invention, the relative difference may be controlled by switching paths, or producing various degrees of relative difference by switching, activating or controlling multiple elements with various resolutions of the relative parameter, or by connecting elements by timing of switches.

摘要翻译： 本发明的实施例包括一种用于通过使用各种切换模块或技术相对于至少一个第二信号在第一信号中至少控制相对参数（例如相位差）来修改发射分集信号的方法和装置。 在本发明的一些实施例中，可以通过切换路径来控制相对差异，或者通过切换，激活或控制具有相对参数的各种分辨率的多个元件或者通过开关的定时连接元件来产生各种程度的相对差异。

公开(公告)号：US20070206694A1

公开(公告)日：2007-09-06

申请号：US11265334

申请日：2005-11-02

申请人： Yair Karmi ,  Sherwin Wang ,  Haim Harel

发明人： Yair Karmi ,  Sherwin Wang ,  Haim Harel

IPC分类号： H04L1/02

CPC分类号： H04W52/42 ,  H04L1/0001 ,  H04L1/0006 ,  H04L1/0026 ,  H04L1/04 ,  H04L1/06

摘要： A signal is modified according to a current diversity parameter adjustment, and is transmitted from a modifying communication device to a feedback communication device. A feedback signal reflecting feedback information describing the signal as received by the feedback communication device is received. The feedback signal comprises frames, and a frame comprises slots, where a slot has a slot power value. The frame timing of the frames is established from the slot power values. The signal is modified according to a next diversity parameter adjustment in accordance with the frame timing.

摘要翻译： 根据当前的分集参数调整修改信号，并从修改通信装置发送到反馈通信装置。 接收反映通过反馈通信装置接收的描述信号的反馈信息的反馈信号。 反馈信号包括帧，并且帧包括时隙，其中时隙具有时隙功率值。 从时隙功率值建立帧的帧定时。 根据帧定时根据下一个分集参数调整修改信号。

公开(公告)号：US07145959B2

公开(公告)日：2006-12-05

申请号：US10131612

申请日：2002-04-25

申请人： Haim Harel ,  Alexander Segalovitz

发明人： Haim Harel ,  Alexander Segalovitz

IPC分类号： H04B7/02

CPC分类号： H04L5/023 ,  H04B7/0851 ,  H04L27/261

摘要： A system and method for using a group of pilot signals to enhance a data signal within an orthogonal frequency division multiplexing (OFDM) multiple-access scheme is described. The OFDM multiple-access scheme has multiple OFDM transmitters using at least overlapping frequency spectrums, during at least overlapping time period, in at least overlapping geographic areas. A set of data signals and a set of pilot signals are received on antenna elements. Each group of data signals from the set of data signals is uniquely associated with a group of pilot signals from the set of pilot signals. Each pilot signal from the set of pilot signals is uniquely associated with its own code from a set of codes. Each code from the set of codes is uniquely associated with an OFDM transmitter from the multiple OFDM transmitters. A group of pilot signals from the set of pilot signals is identified based on its uniquely associated code. A weight value associated with each antenna element from a set of antenna elements is adjusted so that a level of correlation between the group of pilot signals and the code uniquely associated with the group of pilot signals is enhanced while a level of correlation between the remaining groups of pilot signals from the set of pilot signals and the codes uniquely associated with those remaining group of pilot signals are suppressed.