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    METHOD, APPARATUS AND SYSTEM FOR PROVIDING TRANSMIT DIVERSITY FEEDBACK
    1.
    发明授权
    METHOD, APPARATUS AND SYSTEM FOR PROVIDING TRANSMIT DIVERSITY FEEDBACK 有权
    方法，装置和系统用于提供发射分集反馈

    公开(公告)号：EP2143213B1

    公开(公告)日：2011-05-11

    申请号：EP08743925.3

    申请日：2008-03-14

    申请人： Magnolia Broadband, Inc.

    发明人： HAREL, Haim ,  KLUDT, Kenneth

    IPC分类号： H04W52/22 ,  H04W52/42 ,  H04B7/06

    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.

    MODIFYING A SIGNAL BY ADJUSTING THE PHASE AND AMPLITUDE OF THE SIGNAL
    2.
    发明公开
    MODIFYING A SIGNAL BY ADJUSTING THE PHASE AND AMPLITUDE OF THE SIGNAL 审中-公开
    修改信号通过设置相位和振幅信号

    公开(公告)号：EP1884039A1

    公开(公告)日：2008-02-06

    申请号：EP06760087.4

    申请日：2006-05-17

    申请人： Magnolia Broadband, Inc.

    发明人： KARMI, Yair ,  HAREL, Haim

    IPC分类号： H04B7/06

    CPC分类号： H04B7/0632

    摘要： Modifying a signal includes facilitating transmission of the signal from a modifying communication device to a feedback communication device. Power indicators reflecting the power of the signal as received by the feedback communication device are received. Previous power indicators reflect the power of the signal adjusted according to a previous modification, and current power indicators reflect the power of the signal adjusted according to a current modification. A previous power descriptor value is estimated from the previous power indicators, and a current power descriptor value is estimated from the current power indicators. A modification increment is determined in accordance with the previous power descriptor value and the current power descriptor value. A next modification is calculated from the current modification and the modification increment, and a phase and an amplitude of the signal are adjusted in accordance with the next modification.

    METHOD, APPARATUS AND SYSTEM FOR PROVIDING TRANSMIT DIVERSITY FEEDBACK
    5.
    发明公开
    METHOD, APPARATUS AND SYSTEM FOR PROVIDING TRANSMIT DIVERSITY FEEDBACK 有权
    方法，装置和系统用于提供发射分集反馈

    公开(公告)号：EP2143213A1

    公开(公告)日：2010-01-13

    申请号：EP08743925.3

    申请日：2008-03-14

    申请人： Magnolia Broadband, Inc.

    发明人： HAREL, Haim ,  KLUDT, Kenneth

    IPC分类号： H04B7/06 ,  H04B7/005

    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.

    METHOD, SYSTEM AND APPARATUS FOR THE CONTROL OF TRANSMIT DIVERSITY
    6.
    发明公开
    METHOD, SYSTEM AND APPARATUS FOR THE CONTROL OF TRANSMIT DIVERSITY 有权
    方法，系统和设备用于控制发射分集

    公开(公告)号：EP2095500A1

    公开(公告)日：2009-09-02

    申请号：EP07853237.1

    申请日：2007-12-05

    申请人： Magnolia Broadband, Inc.

    发明人： ABREU, Eduardo ,  KARMI, Yair

    IPC分类号： H03C7/02

    CPC分类号： H04L25/02 ,  H04B7/06

    摘要： A method, apparatus and system for modifying a transmit diversity signal comprising receiving at least one input parameter, calculating at least one virtual parameter based on the at least one input parameter, converting the at least one virtual parameter into an actual parameter, and modifying a transmit diversity signal based on the actual parameter. Variations of the invention are possible, including mapping the input parameter to an actual parameter by various methods, for example, quantization, hysteresis and other methods. Embodiments of the invention may include an apparatus adapted to modify a transmit diversity signal comprising a processor to calculate at least one virtual parameter based on at least one input parameter, convert said at least one virtual parameter to an actual parameter, and modify said transmit diversity signal based on said actual parameter.

    COMMUNICATION DEVICE WITH SMART ANTENNA USING A QUALITY-INDICATION SIGNAL
    7.
    发明公开
    COMMUNICATION DEVICE WITH SMART ANTENNA USING A QUALITY-INDICATION SIGNAL 有权
    具有智能天线的通信设备使用质量指示信号

    公开(公告)号：EP1391059A1

    公开(公告)日：2004-02-25

    申请号：EP02725954.8

    申请日：2002-05-09

    申请人： Magnolia Broadband, Inc.

    发明人： HAREL, Haim ,  LI, Yingxue ,  SEGALOVITZ, Alexander

    IPC分类号： H04B7/02

    CPC分类号： H04W52/221 ,  H04B7/0623 ,  H04B7/0632 ,  H04W52/16 ,  H04W52/34 ,  H04W52/42

    摘要： Communication is performed for a first communication device (120) having a set of antenna element (125). A quality-indication signal (270) is received from a second communication device (110). A complex weighting is calculated based on the quality-indication signal. A pre-transmission signal (260) is modified based on the complex weighting to produce a set of modified pre-transmission signals. 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. The complex weighting is associated with a total power of the transmitted power and at least one from a phase rotation and a power ratio associated with each antenna element from the set of antenna elements.

    摘要翻译： 对具有一组天线元件（125）的第一通信设备（120）执行通信。 从第二通信设备（110）接收质量指示信号（270）。 基于质量指示信号来计算复数加权。 基于复加权修改预发送信号（260）以产生一组修改的预发送信号。 来自该组修改的预发送信号的每个修改的预发送信号与来自该组天线元件的天线元件唯一地关联。 该组修改的预发送信号从该组天线元件发送以产生发送信号。 复合加权与发射功率的总功率相关联，并且与来自该组天线元件中的每个天线元件相关联的相位旋转和功率比中的至少一个相关。

    SYSTEMS AND METHODS FOR ENHANCED RF MIMO SYSTEM PERFORMANCE
    8.
    发明公开
    SYSTEMS AND METHODS FOR ENHANCED RF MIMO SYSTEM PERFORMANCE 审中-公开
    系统和改进的RF MIMO系统性能的方法

    公开(公告)号：EP2859668A2

    公开(公告)日：2015-04-15

    申请号：EP13728890.8

    申请日：2013-05-29

    申请人： Magnolia Broadband, Inc.

    发明人： HAREL, Haim ,  KLUDT, Kenneth ,  ABREU, Eduardo ,  CHEN, Phil F. ,  WANG, Sherwin J.

    IPC分类号： H04B7/08 ,  H04B7/04

    CPC分类号： H04B7/0874 ,  H04B7/0417 ,  H04B7/086 ,  H04B7/088

    摘要： Systems and methods for enhancing performance of a multiple-input-multiple-output (MIMO) receiving system are provided herein. The performance enhancement is achieved by connecting a radio distributed network (RDN) of beamformers having M antennas to a MIMO system having N branches, wherein M > N. A control module is configured to tune the antennas based on channel estimation metrics of the beamformed signals. As the antennas outnumber the MIMO channels, embodiments of the present invention provide means for distinguishing between the antenna signals so the control module may assess their individual contribution. Other embodiments, when the MIMO class includes multiple layers, use the channel estimation metrics to pick a single weight setting for each beamformer that provides best phase and amplitude matching, to optimize the total receive power. Another embodiment uses the channel estimation and weight selection for antennas swapping for increasing the probability of achieving better phase and amplitude matches.

    METHOD FOR PROVIDING FEEDBACK IN A CLOSED-LOOP TRANSMIT DIVERSITY COMMUNICATION SYSTEM
    9.
    发明公开
    METHOD FOR PROVIDING FEEDBACK IN A CLOSED-LOOP TRANSMIT DIVERSITY COMMUNICATION SYSTEM 有权
    一种用于在发射分集通信系统中提供反馈闭环

    公开(公告)号：EP2153542A2

    公开(公告)日：2010-02-17

    申请号：EP08732284.8

    申请日：2008-03-14

    申请人： Magnolia Broadband, Inc.

    发明人： HAREL, Haim ,  KARMI, Yair ,  KLUDT, Kenneth ,  WANG, Sherwin, J.

    IPC分类号： H04B7/06

    CPC分类号： H04B7/06 ,  H04B7/0632 ,  H04W24/00

    摘要： A method and system for improving closed loop feedback in transmit diversity communication. In one embodiment of the invention, a predetermined variation of one or more transmit diversity parameters is performed at the transmit diversity transmitter. The receiver compares the transmit diversity parameter values of the received signals to the predetermined variation and transmits to the transmitter a value of a transmit diversity correction parameter. The transmitter may use this correction value to modify the transmit diversity parameter in a subsequent transmission.

    摘要翻译： 一种提高在发射分集通信的闭环反馈方法和系统。 在本发明的一个或多个发射分集参数的预定的变化的一个实施例在发射分集发送器被执行。 该接收机比较接收到的信号的发射分集的参数值，以预定的变化，并发送给发射机的发射分集参数校正的值。 发射机可以使用该修正值来修改发射分集参数在随后的传输。