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    Multicarrier transmission system with reduced complexity leakage matrix multiplication
    2.
    发明授权
    Multicarrier transmission system with reduced complexity leakage matrix multiplication 失效
    多载波传输系统具有降低复杂性的泄漏矩阵乘法

    公开(公告)号：US07054354B2

    公开(公告)日：2006-05-30

    申请号：US10078952

    申请日：2002-02-19

    申请人： Alexei Gorokhov ,  Johan Paul Marie Gerard Linnartz

    发明人： Alexei Gorokhov ,  Johan Paul Marie Gerard Linnartz

    IPC分类号： H04K1/00

    CPC分类号： H04L27/2665 ,  H04L25/03159 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03522 ,  H04L2025/03624 ,  H04L2025/03662 ,  H04L2025/03668

    摘要： Described is a transmission system for transmitting a multicarrier signal from a transmitter (10) to a receiver (20). The multicarrier signal comprises a plurality of subcarriers. The receiver (20) comprises a channel estimator (28) for estimating amplitudes of the subcarriers and for estimating time derivatives of the amplitudes. The receiver (20) further comprises an equalizer (24) for canceling intercarrier interference included in the received multicarrier signal in dependence on the estimated amplitudes and derivates (29). The receiver (20) comprises a multiplication by a N×N leakage matrix, and wherein the multiplication is implemented as a sequence of an N-point IFFT (82), N pointwise multiplications (84) and an N-point FFT (86). multiplications (84) and an N-point FFT (86).

    摘要翻译： 描述了一种用于从发射机（10）向接收机（20）发送多载波信号的传输系统。 多载波信号包括多个子载波。 接收器（20）包括用于估计子载波的振幅并估计时间的幅度的导数的信道估计器（28）。 接收器（20）还包括一个均衡器（24），用于根据所估计的幅度和导数（29）来消除包含在所接收的多载波信号中的载波间干扰。 接收器（20）包括乘以N×N泄漏矩阵，并且其中乘法被实现为N点IFFT（82），N个点乘法（84）和N点FFT（86）的序列。 乘法（84）和N点FFT（86）。

    Multicarrier transmission system with reduced complexity channel response estimation
    3.
    发明授权
    Multicarrier transmission system with reduced complexity channel response estimation 失效
    多载波传输系统具有降低复杂度的信道响应估计

    公开(公告)号：US07230990B2

    公开(公告)日：2007-06-12

    申请号：US10078932

    申请日：2002-02-19

    申请人： Alexei Gorokhov ,  Johan Paul Marie Gerard Linnartz

    发明人： Alexei Gorokhov ,  Johan Paul Marie Gerard Linnartz

    IPC分类号： H04L27/28 ,  H04K1/00

    CPC分类号： H04L25/03821 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0236 ,  H04L25/0244 ,  H04L27/2647

    摘要： Described is a transmission system for transmitting a multicarrier signal from a transmitter (10) to a receiver (20). The multicarrier signal comprises a plurality of subcarriers. The receiver (20) comprises a channel estimator (28) for estimating amplitudes of the subcarriers and for estimating time derivatives of the amplitudes. The receiver (20) further comprises an equalizer (24) for canceling intercarrier interference included in the received multicarrier signal in dependence on the estimated amplitudes and derivatives (29). The channel estimator (28) comprises a reduced complexity filter for deriving vectors of the estimated amplitudes and derivatives (29) from vectors of received symbols (23) and vectors of estimated symbols (27). The reduced complexity filter may be arranged for exploiting an amplitude correlation between the amplitudes of different subcarriers and/or for exploiting a derivative correlation between the derivatives of different subcarriers.

    摘要翻译： 描述了一种用于从发射机（10）向接收机（20）发送多载波信号的传输系统。 多载波信号包括多个子载波。 接收器（20）包括用于估计子载波的振幅并估计时间的幅度的导数的信道估计器（28）。 接收器（20）还包括均衡器（24），用于根据所估计的幅度和导数（29）来消除包含在所接收的多载波信号中的载波间干扰。 信道估计器（28）包括用于从接收符号（23）的向量和估计符号（27）的向量导出估计的幅度和导数（29）的向量的降低的复杂度滤波器。 降低的复杂度滤波器可以被布置为利用不同子载波的幅度之间的幅度相关性和/或用于利用不同子载波的导数之间的导数相关。

    Reduced complexity intercarrier interference cancellation
    4.
    发明授权
    Reduced complexity intercarrier interference cancellation 失效
    降低复杂性载波间干扰消除

    公开(公告)号：US07120209B2

    公开(公告)日：2006-10-10

    申请号：US10078936

    申请日：2002-02-19

    申请人： Alexei Gorokhov ,  Johan Paul Marie Gerard Linnartz

    发明人： Alexei Gorokhov ,  Johan Paul Marie Gerard Linnartz

    IPC分类号： H03D1/04

    CPC分类号： H04L25/03159 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03522 ,  H04L2025/03605

    摘要： Described is a transmission system for transmitting a multicarrier signal from a transmitter (10) to a receiver (20). The receiver (20) comprises an equalizer (24) for canceling intercarrier interference which may be included in the received multicarrier signal. The equalizer (24), which preferably is a MMSE equalizer, comprises a reduced complexity filter for deriving a vector of estimated symbols (25) from a vector of received symbols (23). The reduced complexity filter comprises a multiplication of an approximation of an inverse matrix R−1 with the vector of received symbols (23). The approximation of the inverse matrix R−1 is preferably a first order approximation.

    摘要翻译： 描述了一种用于从发射机（10）向接收机（20）发送多载波信号的传输系统。 接收机（20）包括用于消除可能包含在所接收的多载波信号中的载波间干扰的均衡器（24）。 优选地是MMSE均衡器的均衡器（24）包括用于从接收到的符号（23）的向量导出估计符号（25）的向量的简化复杂度滤波器。 降低复杂度滤波器包括逆矩阵R 0 -1的近似与接收符号（23）的向量的乘法。 逆矩阵R 0> -1的近似优选地是一阶近似。

    ACKNOWLEDGMENT BASED ON SHORT CELL RADIO NETWORK TEMPORARY IDENTIFIER
    6.
    发明申请
    ACKNOWLEDGMENT BASED ON SHORT CELL RADIO NETWORK TEMPORARY IDENTIFIER 有权

    公开(公告)号：US20170104559A1

    公开(公告)日：2017-04-13

    申请号：US15388247

    申请日：2016-12-22

    申请人： Ravi Palanki ,  Alexei Gorokhov

    发明人： Ravi Palanki ,  Alexei Gorokhov

    IPC分类号： H04L1/18 ,  H04W72/04 ,  H04B7/02

    CPC分类号： H04L1/1893 ,  H04B7/024 ,  H04L1/0025 ,  H04L1/1887 ,  H04L2001/0097 ,  H04W72/0413 ,  H04W72/042

    摘要： Systems and methodologies are described that facilitate identifying resources upon which an acknowledgment can be sent or received in a wireless communication environment that leverages coordinated multi-point (CoMP). The resources can be identified based upon a criterion that can be identifiable to a non-anchor cell base station (as well as an anchor cell base station, a mobile device, etc.). The criterion can be an identifier corresponding to a mobile device, where the identifier maps to a predetermined set of resources. Examples of the identifier can include a media access control identifier (MACID), a cell radio network temporary identifier (C-RNTI), a short C-RNTI, etc. Further, the criterion can be physical resources corresponding to a transmission, where the acknowledgment is responsive to the transmission. Moreover, the acknowledgment can be sent or received in connection with a cooperation technique (e.g., joint transmission via inter-site packet sharing, cooperative beamforming, cooperative silence, . . . ).

    Resource scaling in wireless communication systems
    8.
    发明授权
    Resource scaling in wireless communication systems 有权
    无线通信系统中的资源缩放

    公开(公告)号：US09258743B2

    公开(公告)日：2016-02-09

    申请号：US12260908

    申请日：2008-10-29

    申请人： Tingfang Ji ,  Alexei Gorokhov ,  Pranav Dayal

    发明人： Tingfang Ji ,  Alexei Gorokhov ,  Pranav Dayal

    IPC分类号： H04J1/16 ,  H04W28/16 ,  H04W28/18

    CPC分类号： H04W28/16 ,  H04W28/18

    摘要： Systems and methodologies are described that facilitate resource scaling for inter-access point fairness in a wireless communication system. As described herein, an offered load of an access point can be determined based on one or more loading metrics relating to associated terminals, throughput, data rate, quality of service (QoS), or the like. Based on the determined offered load of an access point, resources used by the access point and/or power utilized for communication over those resources can be scaled based on a comparison of the offered load of the access point to a nominal or default offered load. Centralized techniques for resource scaling are described herein, wherein one or more centralized controllers coordinate resource scaling with respective access points via backhaul messaging. In addition, distributed techniques for resource scaling are described herein, wherein neighboring access points communicate with each other via over-the-air messaging to determine a local optimal resource apportionment.

    摘要翻译： 描述了在无线通信系统中促进资源缩放以实现接入点间公平性的系统和方法。 如本文所述，可以基于与相关联的终端，吞吐量，数据速率，服务质量（QoS）等有关的一个或多个加载度量来确定接入点的提供的负载。 基于所确定的接入点的提供的负载，可以基于将接入点的提供的负载与标称或默认提供的负载进行比较来缩放由接入点使用的资源和/或用于通过这些资源进行通信的功率。 这里描述了用于资源缩放的集中化技术，其中一个或多个集中式控制器通过回程消息传送与各个接入点协调资源缩放。 此外，本文描述了用于资源缩放的分布式技术，其中相邻接入点经由空中消息传递相互通信以确定本地最优资源分配。