利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

25 条记录 (耗时 0.017 秒)

    MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding
    1.
    发明授权
    MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding 有权
    MIMO预编码使得能够进行空间复用，功率分配和自适应调制和编码

    公开(公告)号：US09154202B2

    公开(公告)日：2015-10-06

    申请号：US13556124

    申请日：2012-07-23

    申请人： Jayesh H. Kotecha ,  Kaibin Huang

    发明人： Jayesh H. Kotecha ,  Kaibin Huang

    IPC分类号： H04L1/02 ,  H04B7/04 ,  H04B7/06 ,  H04L1/06 ,  H04L1/00

    CPC分类号： H04B7/0478 ,  H04B7/0417 ,  H04B7/043 ,  H04B7/0447 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0693 ,  H04W52/08

    摘要： In a closed-loop wireless communication system, a codebook-based feedback mechanism is provided to enable non-unitary precoding for multi-stream transmission, where in each stream is optimized with suitable transmission power allocation and AMC. The codebook-based feedback mechanism uses a precoding codebook having a power allocation matrix which is constrained to specify that beamforming always applies full power to a predetermined beam. With this constraint, a one-bit power allocation feedback index may be used to switch between beamforming and spatial multiplexing.

    摘要翻译： 在闭环无线通信系统中，提供基于码本的反馈机制，以实现用于多流传输的非单位预编码，其中在每个流中以合适的传输功率分配和AMC进行优化。 基于码本的反馈机制使用具有功率分配矩阵的预编码码本，该功率分配矩阵被约束以规定波束成形总是对预定波束施加全部功率。 利用该约束，可以使用一位功率分配反馈索引来在波束形成和空间复用之间切换。

    Method for interference alignment in wireless network
    2.
    发明授权
    Method for interference alignment in wireless network 有权
    无线网络干扰对准方法

    公开(公告)号：US08843166B2

    公开(公告)日：2014-09-23

    申请号：US13575285

    申请日：2011-02-01

    申请人： Han Byul Seo ,  Kaibin Huang ,  Soon Suk Roh ,  Sung Yoon Cho ,  Hyuk Jin Chae ,  Byoung Hoon Kim ,  Dong Ku Kim

    发明人： Han Byul Seo ,  Kaibin Huang ,  Soon Suk Roh ,  Sung Yoon Cho ,  Hyuk Jin Chae ,  Byoung Hoon Kim ,  Dong Ku Kim

    IPC分类号： H04B15/00

    CPC分类号： H04B7/0417 ,  H04B7/0617 ,  H04B7/0626 ,  H04L1/0029 ,  H04L25/03343 ,  H04L2025/03808 ,  H04W52/04

    摘要： A method for interference alignment in wireless network having 3 transmitters and 3 receivers which are equipped with M antennas is provided. The method comprising: transmitting, performed by each of the 3 transmitters, a pilot signal known to the 3 receivers; estimating, performed by each of the 3 receivers, each channel from transmitter; transmitting, performed by each of the 3 receivers, feedback information to target transmitter; and determining, performed by transmitter 2 and transmitter 3, a precoding vector; wherein a degree of freedom (DoF) of a transmitter 1 is (M/2−α), a DoF of the transmitter 2 or the transmitter 3 is M/2.

    摘要翻译： 提供了一种具有3个发射机和3个接收机的无线网络中的配备M个天线的干扰对准方法。 该方法包括：由3个发射机中的每一个发送由3个接收机已知的导频信号; 估计，由3个接收机中的每一个执行，来自发射机的每个信道; 由3个接收机中的每一个发送，向目标发射机发送反馈信息; 并由发射机2和发射机3确定预编码向量; 其中发射机1的自由度（DoF）为（M / 2-α），发射机2或发射机3的DoF为M / 2。

    MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding
    3.
    发明授权
    MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding 有权
    MIMO预编码使得能够进行空间复用，功率分配和自适应调制和编码

    公开(公告)号：US08229019B2

    公开(公告)日：2012-07-24

    申请号：US12762013

    申请日：2010-04-16

    申请人： Jayesh H. Kotecha ,  Kaibin Huang

    发明人： Jayesh H. Kotecha ,  Kaibin Huang

    IPC分类号： H04L27/10

    CPC分类号： H04B7/0478 ,  H04B7/0417 ,  H04B7/043 ,  H04B7/0447 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0693 ,  H04W52/08

    摘要： In a closed-loop wireless communication system, a codebook-based feedback mechanism is provided to enable non-unitary precoding for multi-stream transmission, where in each stream is optimized with suitable transmission power allocation and AMC. The codebook-based feedback mechanism uses a precoding codebook having a power allocation matrix which is constrained to specify that beamforming always applies full power to a predetermined beam. With this constraint, a one-bit power allocation feedback index may be used to switch between beamforming and spatial multiplexing.

    摘要翻译： 在闭环无线通信系统中，提供基于码本的反馈机制，以实现用于多流传输的非单位预编码，其中在每个流中以合适的传输功率分配和AMC进行优化。 基于码本的反馈机制使用具有功率分配矩阵的预编码码本，该功率分配矩阵被约束以规定波束成形总是对预定波束施加全部功率。 利用该约束，可以使用一位功率分配反馈索引来在波束形成和空间复用之间切换。

    MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding
    4.
    发明授权
    MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding 有权
    MIMO预编码使得能够进行空间复用，功率分配和自适应调制和编码

    公开(公告)号：US07702029B2

    公开(公告)日：2010-04-20

    申请号：US11537902

    申请日：2006-10-02

    申请人： Jayesh H. Kotecha ,  Kaibin Huang

    发明人： Jayesh H. Kotecha ,  Kaibin Huang

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0478 ,  H04B7/0417 ,  H04B7/043 ,  H04B7/0447 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0693 ,  H04W52/08

    摘要： In a closed-loop wireless communication system, a codebook-based feedback mechanism is provided to enable non-unitary precoding for multi-stream transmission, where in each stream is optimized with suitable transmission power allocation and AMC. The codebook-based feedback mechanism uses a precoding codebook having a power allocation matrix which is constrained to specify that beamforming always applies full power to a predetermined beam. With this constraint, a one-bit power allocation feedback index may be used to switch between beamforming and spatial multiplexing.

    摘要翻译： 在闭环无线通信系统中，提供基于码本的反馈机制，以实现用于多流传输的非单位预编码，其中在每个流中以合适的传输功率分配和AMC进行优化。 基于码本的反馈机制使用具有功率分配矩阵的预编码码本，该功率分配矩阵被约束以规定波束成形总是对预定波束施加全部功率。 利用该约束，可以使用一位功率分配反馈索引来在波束形成和空间复用之间切换。

    Feedback scheduling to reduce feedback rates in MIMO systems
    6.
    发明授权
    Feedback scheduling to reduce feedback rates in MIMO systems 有权
    反馈调度以减少MIMO系统中的反馈速率

    公开(公告)号：US08675743B2

    公开(公告)日：2014-03-18

    申请号：US11833669

    申请日：2007-08-03

    申请人： Jayesh H. Kotecha ,  Kaibin Huang

    发明人： Jayesh H. Kotecha ,  Kaibin Huang

    IPC分类号： H04L27/28

    CPC分类号： H04B7/0478 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0643 ,  H04L5/0007 ,  H04L5/0075 ,  H04L5/0078 ,  H04L5/0094 ,  H04L43/0864 ,  H04L2025/03808 ,  H04W72/0446

    摘要： In a closed-loop wireless communication system, a codebook-based feedback control mechanism is provided where feedback from each of a plurality of receivers is scheduled to control the feedback so that the receiving devices do not needlessly feed back precoding information to the transmitting device. The feedback may be controlled by establishing and distributing a schedule to control when each receiver feeds back precoding information, or by establishing and distributing a metric-based feedback threshold that must be satisfied before feedback is permitted.

    摘要翻译： 在闭环无线通信系统中，提供基于码本的反馈控制机制，其中来自多个接收机中的每一个的反馈被调度以控制反馈，使得接收设备不必要地将预编码信息反馈给发送设备。 可以通过建立和分发调度来控制反馈，以控制何时每个接收机反馈预编码信息，或者通过建立和分发在允许反馈之前必须满足的基于度量的反馈阈值。

    POWER CONTROL METHOD FOR INTERFERENCE ALIGNMENT IN WIRELESS NETWORK
    7.
    发明申请
    POWER CONTROL METHOD FOR INTERFERENCE ALIGNMENT IN WIRELESS NETWORK 有权
    无线网络干扰对齐功率控制方法

    公开(公告)号：US20120302280A1

    公开(公告)日：2012-11-29

    申请号：US13576385

    申请日：2011-02-01

    申请人： Han Byul Seo ,  Kaibin Huang ,  Soon Suk Roh ,  Sung Yoon Cho ,  Hyuk Jin Chae ,  Byoung Hoon Kim ,  Dong Ku Kim

    发明人： Han Byul Seo ,  Kaibin Huang ,  Soon Suk Roh ,  Sung Yoon Cho ,  Hyuk Jin Chae ,  Byoung Hoon Kim ,  Dong Ku Kim

    IPC分类号： H04W52/04

    CPC分类号： H04B7/0417 ,  H04B7/0617 ,  H04B7/0626 ,  H04L1/0029 ,  H04L25/03343 ,  H04L2025/03808 ,  H04W52/04

    摘要： A power control method for interference alignment in wireless network having K transmitters and K receivers is provided. The method comprising: receiving, performed by receiver n (n is an integer, 1≦n≦K−1), a power indication signal of transmitter n+1 from the transmitter n+1; determining, performed by the receiver n, power of transmitter n; and transmitting, performed by the receiver n, a power indication signal of transmitter n to the transmitter n, wherein the power of transmitter n is determined based on a residual interference of the receiver n, and the power indication signal of transmitter n indicates a minimum transmission power or a maximum transmission power of transmitter n.

    摘要翻译： 提供了一种用于具有K个发射机和K个接收机的无线网络中的干扰对准的功率控制方法。 该方法包括：由发射机n + 1发射机n + 1的功率指示信号由接收机n（n为整数，1＆nlE; n＆nlE; K-1） 确定由接收机n执行的发射机n的功率; 并且由接收机n执行发射机n的功率指示信号到发射机n，其中，基于接收机n的残余干扰来确定发射机n的功率，并且发射机n的功率指示信号表示最小 发射功率或发射机n的最大发射功率。

    Feedback reduction for MIMO precoded system by exploiting channel correlation
    8.
    发明授权
    Feedback reduction for MIMO precoded system by exploiting channel correlation 有权
    通过利用信道相关性对MIMO预编码系统进行反馈减少

    公开(公告)号：US08023457B2

    公开(公告)日：2011-09-20

    申请号：US11537948

    申请日：2006-10-02

    申请人： Jayesh H. Kotecha ,  Kaibin Huang

    发明人： Jayesh H. Kotecha ,  Kaibin Huang

    IPC分类号： H04W4/00

    CPC分类号： H04B7/0417 ,  H04B7/0636 ,  H04B7/0639 ,  H04B7/0647 ,  H04L1/0029 ,  H04L5/0044 ,  H04L5/0053 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03802

    摘要： In a closed-loop wireless communication system, a codebook-based precoding feedback compression mechanism is provided to remove redundancy from the precoding feedback that is caused by channel correlation in time and frequency. Redundancy due to temporal correlation of the transmission channel is removed by sending precoding feedback only if there is a change in the precoder state for the channel to the receiver. Redundancy due to frequency correlation is removed by run length encoding the precoding feedback, thereby compressing the precoding feedback prior in the frequency domain. By compressing the precoding feedback, the average rate of precoder feedback is reduced.

    摘要翻译： 在闭环无线通信系统中，提供基于码本的预编码反馈压缩机制，以从时间和频率上的信道相关性引起的预编码反馈消除冗余。 通过发送预编码反馈来消除由于传输信道的时间相关性引起的冗余，只有当信道对接收机的预编码器状态发生改变时才会消除。 通过编码预编码反馈的游程长度来消除由于频率相关的冗余，从而在频域之前压缩预编码反馈。 通过压缩预编码反馈，减小了预编码器反馈的平均速率。

    Feedback scheduling to reduce feedback rates in MIMO systems
    9.
    发明申请
    Feedback scheduling to reduce feedback rates in MIMO systems 有权
    反馈调度以减少MIMO系统中的反馈速率

    公开(公告)号：US20090034636A1

    公开(公告)日：2009-02-05

    申请号：US11833669

    申请日：2007-08-03

    申请人： Jayesh H. Kotecha ,  Kaibin Huang

    发明人： Jayesh H. Kotecha ,  Kaibin Huang

    IPC分类号： H04L27/28

    CPC分类号： H04B7/0478 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0643 ,  H04L5/0007 ,  H04L5/0075 ,  H04L5/0078 ,  H04L5/0094 ,  H04L43/0864 ,  H04L2025/03808 ,  H04W72/0446

    摘要： In a closed-loop wireless communication system, a codebook-based feedback control mechanism is provided where feedback from each of a plurality of receivers is scheduled to control the feedback so that the receiving devices do not needlessly feed back precoding information to the transmitting device. The feedback may be controlled by establishing and distributing a schedule to control when each receiver feeds back preceding information, or by establishing and distributing a metric-based feedback threshold that must be satisfied before feedback is permitted.

    摘要翻译： 在闭环无线通信系统中，提供基于码本的反馈控制机制，其中来自多个接收机中的每一个的反馈被调度以控制反馈，使得接收设备不必要地将预编码信息反馈给发送设备。 可以通过建立和分发调度来控制反馈以控制何时每个接收机反馈先前的信息，或者通过建立和分发在允许反馈之前必须满足的基于度量的反馈阈值。