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    Method and Apparatus for Controlling Multi-Antenna Transmission in a Wireless Communication Network
    41.
    发明申请
    Method and Apparatus for Controlling Multi-Antenna Transmission in a Wireless Communication Network 有权
    用于控制无线通信网络中的多天线传输的方法和装置

    公开(公告)号：US20080310523A1

    公开(公告)日：2008-12-18

    申请号：US11763192

    申请日：2007-06-14

    申请人： Dennis Hui ,  Leonid Krasny

    发明人： Dennis Hui ,  Leonid Krasny

    IPC分类号： H04L7/02

    CPC分类号： H04B7/0417 ,  H04B7/0426 ,  H04B7/0626 ,  H04L1/0675 ,  H04L25/0206 ,  H04L27/2601

    摘要： Multi-antenna transmission control presented herein involves generating a set of virtual channel realizations at the transmitter that shares the same second-order statistics as the actual channel realizations observed for a targeted receiver. By making the control-related quantities of interest at the transmitter depend on the long-term statistics of the channel, the actual channel realizations are not needed for transmission control, e.g., for accurate Multiple-Input-Multiple-Output (MIMO) preceding. As such, the use of virtual channel realizations enables transmission control that approaches the “closed-loop” channel capacity that would be provided by full feedback of the (instantaneous) actual channel realizations, without requiring the overhead signaling burden that attends full feedback.

    摘要翻译： 本文提出的多天线传输控制涉及在发射机处生成一组虚拟信道实现，其共享与针对目标接收机观察到的实际信道实现相同的二阶统计。 通过使发射机处的控制相关数量取决于信道的长期统计，例如对于精确的多输入多输出（MIMO）预编码，传输控制不需要实际的信道实现。 因此，虚拟信道实现的使用使得接近将通过（瞬时）实际信道实现的完全反馈提供的“闭环”信道容量的传输控制，而不需要出现完全反馈的开销信令负担。

    SIGNAL COMPRESSION FOR BACKHAUL COMMUNICATIONS USING LINEAR TRANSFORMATIONS
    43.
    发明申请
    SIGNAL COMPRESSION FOR BACKHAUL COMMUNICATIONS USING LINEAR TRANSFORMATIONS 有权
    使用线性变换的反向通信的信号压缩

    公开(公告)号：US20120243468A1

    公开(公告)日：2012-09-27

    申请号：US13070414

    申请日：2011-03-23

    申请人： Dennis Hui ,  Jung-fu Cheng ,  Jiann-Ching Guey ,  Ali S. Khayrallah ,  Shing-Wa Wong

    发明人： Dennis Hui ,  Jung-fu Cheng ,  Jiann-Ching Guey ,  Ali S. Khayrallah ,  Shing-Wa Wong

    IPC分类号： H04W4/00

    CPC分类号： H04B7/024 ,  H03M7/3068 ,  H03M7/3082

    摘要： A compression/decompression method for backhaul communication of a complex-valued radio signal between base stations and the network processing unit, such as a Central Processor of a Coordinated MultiPoint (CoMP) system, significantly reduces backhaul bandwidth. The spatial and temporal correlations of the wireless IQ signal are exploited in order to remove redundancy and substantially reduce signal bandwidth. Feature component signals of significance are extracted through linear transformation to form the radio signal, and are individually quantized, possibly at different bit rates in accordance with their relative importance. The transformation can either be pre-determined or computed in real-time based on the spatial and temporal statistics of the radio signal. In the latter case, the transformation matrix or matrices are also sent over the backhaul in order to allow the radio signal to be reconstructed at the receiving end. Different methods of generating the transformation matrices are proposed.

    摘要翻译： 用于基站和诸如协调多点（CoMP）系统的中央处理器的网络处理单元之间的复数无线电信号的回程通信的压缩/解压缩方法显着地减少了回程带宽。 利用无线IQ信号的空间和时间相关性来消除冗余并显着降低信号带宽。 通过线性变换提取有意义的特征分量信号以形成无线电信号，并且可以根据其相对重要性以不同的比特率单独量化。 可以基于无线电信号的空间和时间统计来实时地进行转换或者实时地进行转换。 在后一种情况下，转换矩阵或矩阵也通过回程发送，以允许在接收端重建无线电信号。 提出了生成转换矩阵的不同方法。

    Method and Apparatus for Interference Based User Equipment Management in a Wireless Communication Network
    44.
    发明申请
    Method and Apparatus for Interference Based User Equipment Management in a Wireless Communication Network 审中-公开
    无线通信网络中干扰用户设备管理的方法与装置

    公开(公告)号：US20070259681A1

    公开(公告)日：2007-11-08

    申请号：US11741083

    申请日：2007-04-27

    申请人： Jung-fu Cheng ,  Anders Furuskar ,  Dennis Hui ,  Muhammad Ali Kazmi ,  Arne Simonssson ,  Per Skillermark

    发明人： Jung-fu Cheng ,  Anders Furuskar ,  Dennis Hui ,  Muhammad Ali Kazmi ,  Arne Simonssson ,  Per Skillermark

    IPC分类号： H04B7/00

    CPC分类号： H04L27/2608 ,  H04L5/006 ,  H04L5/0062 ,  H04L27/364 ,  H04W72/1231

    摘要： According to methods and apparatus taught herein, user equipments (UEs) in a wireless communication network are scheduled based on determining received signal power densities for a plurality of UEs to be scheduled, allocating UEs to scheduling intervals based on a sorting of their received signal power densities, and assigning UEs in the same scheduling interval to mirror frequency bands within an available frequency spectrum according to the sorting. For example, UEs to be scheduled are assigned to a given scheduling interval in rank order of their received signal power densities until the scheduling interval is fully allocated. Remaining UEs are assigned in rank order to one or more other scheduling intervals, and the process may be repeated or otherwise carried out on an ongoing basis. Such an allocation scheme tends to minimize both adjacent frequency and mirror frequency interferences between UEs scheduled in the same interval.

    摘要翻译： 根据本文教导的方法和装置，基于确定要调度的多个UE的接收信号功率密度来调度无线通信网络中的用户设备（UE），基于对其接收信号功率的分类，将UE分配到调度间隔 并且按照相同的调度间隔分配UE以根据排序来反映可用频谱内的频带。 例如，要调度的UE被分配给其接收信号功率密度的等级的给定调度间隔，直到调度间隔被完全分配为止。 剩余的UE被按照等级顺序分配给一个或多个其他调度间隔，并且该过程可以在持续的基础上重复或以其他方式执行。 这种分配方案倾向于最小化在相同间隔中调度的UE之间的相邻频率和镜像频率干扰。

    Signal compression for backhaul communications using linear transformations
    45.
    发明授权
    Signal compression for backhaul communications using linear transformations 有权
    使用线性变换的回程通信的信号压缩

    公开(公告)号：US08948138B2

    公开(公告)日：2015-02-03

    申请号：US13070414

    申请日：2011-03-23

    申请人： Dennis Hui ,  Jung-Fu Cheng ,  Jiann-Ching Guey ,  Ali S. Khayrallah ,  Shing-Wa Wong

    发明人： Dennis Hui ,  Jung-Fu Cheng ,  Jiann-Ching Guey ,  Ali S. Khayrallah ,  Shing-Wa Wong

    IPC分类号： H04W4/00 ,  H04B7/02 ,  H03M7/30

    CPC分类号： H04B7/024 ,  H03M7/3068 ,  H03M7/3082

    摘要： A compression/decompression method for backhaul communication of a complex-valued radio signal between base stations and the network processing unit, such as a Central Processor of a Coordinated MultiPoint (CoMP) system, significantly reduces backhaul bandwidth. The spatial and temporal correlations of the wireless IQ signal are exploited in order to remove redundancy and substantially reduce signal bandwidth. Feature component signals of significance are extracted through linear transformation to form the radio signal, and are individually quantized, possibly at different bit rates in accordance with their relative importance. The transformation can either be pre-determined or computed in real-time based on the spatial and temporal statistics of the radio signal. In the latter case, the transformation matrix or matrices are also sent over the backhaul in order to allow the radio signal to be reconstructed at the receiving end. Different methods of generating the transformation matrices are proposed.

    摘要翻译： 用于基站和诸如协调多点（CoMP）系统的中央处理器的网络处理单元之间的复数无线电信号的回程通信的压缩/解压缩方法显着地减少了回程带宽。 利用无线IQ信号的空间和时间相关性来消除冗余并显着降低信号带宽。 通过线性变换提取有意义的特征分量信号以形成无线电信号，并且可以根据其相对重要性以不同的比特率单独量化。 可以基于无线电信号的空间和时间统计来实时地进行转换或者实时地进行转换。 在后一种情况下，转换矩阵或矩阵也通过回程发送，以允许在接收端重建无线电信号。 提出了生成转换矩阵的不同方法。

    JOINT MANAGEMENT OF RADIO AND TRANSPORT RESOURCES
    47.
    发明申请
    JOINT MANAGEMENT OF RADIO AND TRANSPORT RESOURCES 有权
    无线电和运输资源的联合管理

    公开(公告)号：US20120236774A1

    公开(公告)日：2012-09-20

    申请号：US13048226

    申请日：2011-03-15

    申请人： Jiann-Ching Guey ,  Shing-Wa Wong ,  Jung-Fu Cheng ,  Dennis Hui

    发明人： Jiann-Ching Guey ,  Shing-Wa Wong ,  Jung-Fu Cheng ,  Dennis Hui

    IPC分类号： H04W72/10

    CPC分类号： H04W28/16 ,  H04W72/04 ,  H04W92/12

    摘要： A system for managing radio access resources includes a joint radio resource management/transport resource management unit configured to communicate with a plurality of radio units over a transport network, to jointly allocate radio resources at the radio unit and transport resources on the transport network in response to requests from wireless terminals requesting access to radio resources from the radio units, to send a radio resource allocation schedule to the plurality of radio units that defines radio resource allocations for the wireless terminals, and to generate a transport resource allocation schedule that defines transport resource allocations for the wireless terminals. The system further includes a transport resource controller configured to receive the transport resource allocation schedule and to map user data to physical transport resources on the transport network in response to the transport resource allocation schedule.

    摘要翻译： 一种用于管理无线电接入资源的系统包括：联合无线电资源管理/传输资源管理单元，被配置为通过传输网络与多个无线电单元进行通信，以在无线电单元处共同分配无线电资源，并响应于传输网络上的资源传输 向来自无线单元请求接入无线电资源的无线终端的请求向定义无线终端的无线资源分配的多个无线单元发送无线资源分配调度，并生成定义传输资源的传输资源分配调度 为无线终端分配。 该系统还包括传输资源控制器，其被配置为接收传输资源分配调度，并且响应于传输资源分配调度，将用户数据映射到传输网络上的物理传输资源。

    Equalizer for Single Carrier FDMA Receiver
    49.
    发明申请
    Equalizer for Single Carrier FDMA Receiver 有权
    单载波FDMA接收机的均衡器

    公开(公告)号：US20080198911A1

    公开(公告)日：2008-08-21

    申请号：US11676638

    申请日：2007-02-20

    申请人： Dennis Hui ,  Jung-Fu Cheng

    发明人： Dennis Hui ,  Jung-Fu Cheng

    IPC分类号： H04B7/12

    CPC分类号： H04L25/03159 ,  H04L5/0007 ,  H04L25/0204 ,  H04L25/0224 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/0342 ,  H04L2025/03426

    摘要： A method of equalizing a received signal compensates for frequency selectivity of the communication channel taking into account channel estimation errors. The method comprises generating channel estimates for the received signal, computing filter weights for an equalizer based on said channel estimates and a covariance of the channel estimation error, and filtering the received signal using the computed filter weights.

    摘要翻译： 考虑到信道估计误差，均衡接收信号的方法补偿通信信道的频率选择性。 该方法包括生成接收信号的信道估计，基于所述信道估计和信道估计误差的协方差计算均衡器的滤波器权重，以及使用计算的滤波器权重对接收信号进行滤波。

    Generation, deployment and use of tailored channel quality indicator tables
    50.
    发明授权
    Generation, deployment and use of tailored channel quality indicator tables 有权
    定制渠道质量指标表的生成，部署和使用

    公开(公告)号：US07979075B2

    公开(公告)日：2011-07-12

    申请号：US11555294

    申请日：2006-11-01

    申请人： Jung-Fu Cheng ,  Stephen J. Grant ,  Dennis Hui ,  Karl James Molnar

    发明人： Jung-Fu Cheng ,  Stephen J. Grant ,  Dennis Hui ,  Karl James Molnar

    IPC分类号： H04W72/00

    CPC分类号： H04L1/0026 ,  H04L1/0016 ,  H04L1/20 ,  H04W48/08 ,  H04W72/0413 ,  H04W72/085

    摘要： Channel Quality Indicator (CQI) tables are tailored to one or more cells of interest. Tailoring CQI tables to individual cells permits devices such as radio base stations to more reliably and accurately allocate radio resources to those cells since channel conditions vary from cell to cell. According to one embodiment, a table of CQI values is composed by analyzing information indicating channel quality in a cell of interest and generating at least one table of CQI values tailored to the cell of interest based on the information analyzed. The tailored CQI table may be deployed to another device for use in reporting channel quality information. The device may report channel quality by accessing the tailored CQI and identifying the range of CQI values that includes a channel quality estimate derived by the device. The device generates a channel quality information message based on the identified range of CQI values.

    摘要翻译： 信道质量指示符（CQI）表针对感兴趣的一个或多个小区而定制。 由于信道条件因单元而异，所以将CQI表裁定到单个小区允许诸如无线电基站之类的设备更可靠地且准确地分配无线电资源给这些小区。 根据一个实施例，通过分析指示感兴趣的小区中的信道质量的信息并基于分析的信息生成针对感兴趣小区定制的CQI值的至少一个表格来组成CQI值表。 可以将定制的CQI表部署到用于报告信道质量信息的另一设备。 设备可以通过访问定制的CQI并且识别包括由设备导出的信道质量估计的CQI值的范围来报告信道质量。 该设备基于所识别的CQI值范围来生成信道质量信息消息。