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    Joint multi-code detectors in CDMA communications system
    1.
    发明授权
    Joint multi-code detectors in CDMA communications system 有权
    CDMA通信系统中的联合多码探测器

    公开(公告)号：US07787522B2

    公开(公告)日：2010-08-31

    申请号：US10412504

    申请日：2003-04-11

    申请人： Yi-Pin Eric Wang ,  Jung-Fu Cheng ,  Stephen Grant ,  Gregory Edward Bottomley

    发明人： Yi-Pin Eric Wang ,  Jung-Fu Cheng ,  Stephen Grant ,  Gregory Edward Bottomley

    IPC分类号： H04B1/00

    CPC分类号： H04B1/7105 ,  H04B1/709 ,  H04B1/712 ,  H04L25/03171 ,  H04L25/03331

    摘要： A CDMA communication system uses a RAKE receiver, a code correlator and a multi-code joint detector to jointly detect symbols in two or more received signals contained within a composite signal. The RAKE receiver separates the composite signal into two or more RAKE output signals by despreading the composite signal using selected spreading codes. The multi-code joint detector jointly detects the symbols in the received signals using the RAKE receiver output signals, cross-correlations between the spreading codes generated by the code correlator, and RAKE combining weights based on a noise covariance matrix. The multi-code joint detector also includes a trellis that represents possible states and state transitions and a branch metric calculator for calculating branch metrics associated with the state transitions based on the RAKE receiver output signals and the cross-correlations between the spreading codes.

    摘要翻译： CDMA通信系统使用RAKE接收机，码相关器和多码联合检测器联合检测复合信号中包含的两个或多个接收信号中的符号。 RAKE接收机通过使用选择的扩展码解扩复合信号，将复合信号分离成两个或更多个RAKE输出信号。 多码联合检测器使用RAKE接收机输出信号，由码相关器产生的扩展码之间的互相关和基于噪声协方差矩阵的RAKE组合权重联合检测接收信号中的符号。 多码联合检测器还包括表示可能的状态和状态转换的网格，以及用于基于RAKE接收机输出信号和扩展码之间的互相关来计算与状态转换相关联的分支度量的分支度量计算器。

    System and method for coding WCDMA MIMO CQI reports
    2.
    发明授权
    System and method for coding WCDMA MIMO CQI reports 有权
    用于编码WCDMA MIMO CQI报告的系统和方法

    公开(公告)号：US08619742B2

    公开(公告)日：2013-12-31

    申请号：US11862601

    申请日：2007-09-27

    申请人： Jung-Fu Cheng ,  Yi-Pin Eric Wang ,  Stephen Grant

    发明人： Jung-Fu Cheng ,  Yi-Pin Eric Wang ,  Stephen Grant

    IPC分类号： H04B1/00 ,  H04B7/216 ,  H04B3/46 ,  H04L12/26

    CPC分类号： H04B7/0473 ,  H04B1/707 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/0057 ,  H04L1/0073 ,  H04L1/06 ,  H04L25/0202

    摘要： A block coding method and system for improving the reliability of Channel Quality Indicators (CQI) and antenna weight Indicators (AWI) reporting. A user terminal first generates 8-bit CQI and 2-bit AWI. A codeword generator produces a codeword responsive to these 10 CQI/AWI bits using a codebook or a generator matrix of a (20,10,6) code. The (20,10,6) code has a minimum Hamming distance of 6 The encoded codeword is transmitted to a receiver for decoding utilizing an identical (20,10,6) codebook.

    摘要翻译： 一种用于提高信道质量指示符（CQI）和天线权重指示（AWI）报告的可靠性的块编码方法和系统。 用户终端首先生成8比特CQI和2比特AWI。 码字生成器使用（20,10,6）码的码本或生成矩阵来产生响应于这10个CQI / AWI比特的码字。 （20,10,6）码的最小汉明距离为6.编码的码字被传送到接收机，以利用相同的（20,10,6）码本解码。

    A Node for Use in a Mobile Communications Network and a Method of Operating the Same
    6.
    发明申请
    A Node for Use in a Mobile Communications Network and a Method of Operating the Same 有权
    移动通信网络中使用的节点及其操作方法

    公开(公告)号：US20140105180A1

    公开(公告)日：2014-04-17

    申请号：US13703904

    申请日：2012-10-15

    申请人： Stephen Grant ,  Andreas Höglund ,  Edgar Ramos ,  Yi-Pin Eric Wang

    发明人： Stephen Grant ,  Andreas Höglund ,  Edgar Ramos ,  Yi-Pin Eric Wang

    IPC分类号： H04W36/30

    CPC分类号： H04W36/30 ,  H04W36/0083 ,  H04W52/244 ,  H04W76/27 ,  Y02D70/1242 ,  Y02D70/24 ,  Y02D70/25

    摘要： There is provided a method of operating a node in a mobile communication network, the network comprising a mobile device, a first base station and a second base station, the first base station having a lower transmission power than the second base station and being within the coverage area of the second base station, the method in the node comprising determining (101; 111) whether the mobile device is in an imbalanced region or a part of an imbalanced region between the first base station and the second base station; and determining (103; 113-121) whether to switch the mobile device between a first connection state and a second connection state based on whether the mobile device is located in the imbalanced region or the part of the imbalanced region.

    摘要翻译： 提供了一种在移动通信网络中操作节点的方法，所述网络包括移动设备，第一基站和第二基站，所述第一基站具有比所述第二基站更低的发射功率并且在所述第二基站内 第二基站的覆盖区域，所述节点中的方法包括：确定（101; 111）所述移动设备是否处于所述第一基站和所述第二基站之间的不平衡区域或不平衡区域的一部分; 以及基于所述移动设备是否位于所述不平衡区域或所述不平衡区域的一部分中，确定（103; 113-121）是否在第一连接状态和第二连接状态之间切换所述移动设备。

    A Radio Network Controller, A Serving Base Station, A User Equipment and Methods Therein
    7.
    发明申请
    A Radio Network Controller, A Serving Base Station, A User Equipment and Methods Therein 有权
    无线网络控制器，服务基站，用户设备及其方法

    公开(公告)号：US20140064186A1

    公开(公告)日：2014-03-06

    申请号：US13881184

    申请日：2012-12-17

    申请人： Stephen Grant ,  Erik Dahlman ,  Andreas Höglund ,  Stefan Parkvall ,  Edgar Ramos ,  Yi-Pin Eric Wang

    发明人： Stephen Grant ,  Erik Dahlman ,  Andreas Höglund ,  Stefan Parkvall ,  Edgar Ramos ,  Yi-Pin Eric Wang

    IPC分类号： H04W52/26

    CPC分类号： H04W52/265 ,  H04W52/146 ,  H04W52/16 ,  H04W52/242 ,  H04W52/325 ,  H04W52/386 ,  H04W52/40

    摘要： A radio network controller, RNC, 614, and a method therein, for enhancing reception quality of transmissions on an uplink control channel from a user equipment, UE, 613 to a serving base station, BS, 610. The RNC, the UE and the serving BS are comprised in a communication system 600. The method comprises, when conditions for boosting the uplink control channel are fulfilled, determining a boosting factor based on a ratio of path gains of a channel from the UE to the serving BS and of a channel from the UE to a non-serving BS 611, respectively, which non-serving BS is comprised in the communications system. The method further comprises transmitting the determined boosting factor to the UE, whereby the reception quality of transmission on the uplink control channel from the UE to the serving BS is enhanced by the UE boosting the control channel by means of the boosting factor.

    摘要翻译： 一种无线电网络控制器，RNC 614及其方法，用于增强从用户设备UE 613到服务基站BS 610的上行链路控制信道上的传输的接收质量。RNC，UE和 服务BS包括在通信系统600中。该方法包括：当满足用于升级上行链路控制信道的条件时，基于从UE到服务BS的信道的路径增益的比率和信道的确定提升因子 分别从UE到非服务BS 611，其中非服务BS包括在通信系统中。 该方法还包括将确定的升压因子发送给UE，由此UE通过升压因子来提升控制信道的上行控制信道的从UE到服务BS的接收传输质量。

    Signaling of other-cell signal's configuration information to facilitate interference cancellation at a mobile terminal
    8.
    发明授权
    Signaling of other-cell signal's configuration information to facilitate interference cancellation at a mobile terminal 有权
    信令其他小区信号的配置信息，以便于移动终端的干扰消除

    公开(公告)号：US08958753B2

    公开(公告)日：2015-02-17

    申请号：US13451076

    申请日：2012-04-19

    申请人： Yi-Pin Eric Wang ,  Andres Reial ,  Edgar Ramos ,  Stefan Parkvall ,  Stephen Grant

    发明人： Yi-Pin Eric Wang ,  Andres Reial ,  Edgar Ramos ,  Stefan Parkvall ,  Stephen Grant

    IPC分类号： H04B1/00 ,  H04W72/00 ,  G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04W4/00 ,  H03D3/24 ,  H04W72/12 ,  H04W72/08

    CPC分类号： H04W72/1278 ,  H04B1/71075 ,  H04B1/712 ,  H04W72/082

    摘要： In MU-MIMO scenarios, a target mobile terminal can be exposed to data streams intended for other mobile terminals. If the target mobile terminal is capable of interference cancellation, then a serving base station can provide the target mobile terminal with interference information so that the target mobile terminal can efficiently cancel interferences due to these interfering data streams. The interference information includes one or more configuration information, each of which characterizes a related interfering data stream. The serving base station provides the interference information over one or more radio resources that are exclusive allocated to the target mobile terminal or are allocated for common listening. The serving base station exchanges configuration information with neighboring base stations over inter-BS links. The inter-BS links use resources that are different from the radio resources used between the base stations and the mobile terminals.

    摘要翻译： 在MU-MIMO场景中，目标移动终端可以暴露给旨在用于其他移动终端的数据流。 如果目标移动终端能够进行干扰消除，则服务基站可以向目标移动终端提供干扰信息，使得目标移动终端可以有效地消除由于这些干扰数据流引起的干扰。 干扰信息包括一个或多个配置信息，每个配置信息表征相关的干扰数据流。 服务基站通过专用于目标移动终端的一个或多个无线电资源提供干扰信息，或者被分配用于共同收听。 服务基站通过BS间链路与相邻基站交换配置信息。 BS间链路使用与基站和移动终端之间使用的无线电资源不同的资源。

    Method and arrangement for SINR feedback in MIMO based wireless communication systems
    9.
    发明授权
    Method and arrangement for SINR feedback in MIMO based wireless communication systems 失效
    基于MIMO的无线通信系统中SINR反馈的方法和装置

    公开(公告)号：US08644263B2

    公开(公告)日：2014-02-04

    申请号：US12445070

    申请日：2006-11-01

    申请人： Jung-Fu Thomas Cheng ,  Stephen Grant ,  Leonid Krasny ,  Karl Molnar ,  Yi-Pin Eric Wang

    发明人： Jung-Fu Thomas Cheng ,  Stephen Grant ,  Leonid Krasny ,  Karl Molnar ,  Yi-Pin Eric Wang

    IPC分类号： H04B7/216

    CPC分类号： H04L1/0015 ,  H04B7/0426 ,  H04B2201/709727 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0618 ,  H04W52/262 ,  H04W52/42

    摘要： The present invention relates to a method and arrangement to enhance the communication performance in wireless communication systems. The method of the invention provides better adjustment of reported SINR in MIMO, and PARC-MIMO based communication systems. According to the method information relating to signal-to-interference-plus-noise ratio is determined by the user equipment and reported to the base station. The base station adjust reported SINRs using a model of the SINR dependences of power and code allocation. The dependences is modeled by a function comprising a first parameter relating only to power allocation and a second parameter relating only to code allocation. The first parameter has a power allocation exponent and the second parameter has a code allocation exponent. Both the power allocation exponent and the code allocation exponent are data stream dependent.

    摘要翻译： 本发明涉及一种用于增强无线通信系统中的通信性能的方法和装置。 本发明的方法提供对MIMO中所报告的SINR的更好的调整以及基于PARC-MIMO的通信系统。 根据该方法，信号与干扰加噪声比的信息由用户设备确定并向基站报告。 基站使用功率和码分配的SINR依赖关系的模型来调整报告的SINR。 依赖关系由包括仅与功率分配相关的第一参数的功能和仅与代码分配相关的第二参数来建模。 第一个参数具有功率分配指数，第二个参数具有代码分配指数。 功率分配指数和代码分配指数都是依赖于数据流。

    FINGER PLACEMENT IN MULTI-STAGE INTERFERENCE CANCELLATION
    10.
    发明申请
    FINGER PLACEMENT IN MULTI-STAGE INTERFERENCE CANCELLATION 有权
    多级干扰消除中的指示位置

    公开(公告)号：US20130077657A1

    公开(公告)日：2013-03-28

    申请号：US13333703

    申请日：2011-12-21

    申请人： Yi-Pin Eric WANG ,  Stephen Grant ,  Ning He ,  Niklas Johansson

    发明人： Yi-Pin Eric WANG ,  Stephen Grant ,  Ning He ,  Niklas Johansson

    IPC分类号： H04B1/7115

    CPC分类号： H04B1/7107 ,  H04B1/7115 ,  H04B2201/709727 ,  H04B2201/709745

    摘要： In a receive node of a wireless network, an iterative multi-user multi-stage interference cancellation receiver is used. After each stage of interference cancellation, interference characteristics change. An adaptive finger placement strategy is used in which after each stage of interference cancellation, finger delays and combining weights of the receiver are adapted to reflect the changed interference characteristics.

    摘要翻译： 在无线网络的接收节点中，使用迭代多用户多级干扰消除接收机。 在干扰消除的每个阶段之后，干扰特性发生变化。 使用自适应手指放置策略，其中在干扰消除的每个阶段之后，接收机的手指延迟和组合权重适于反映改变的干扰特性。