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    LINK ADAPTATION SYSTEMS AND METHODS
    2.
    发明申请
    LINK ADAPTATION SYSTEMS AND METHODS 有权
    链接适应系统和方法

    公开(公告)号：US20110194596A1

    公开(公告)日：2011-08-11

    申请号：US13125368

    申请日：2008-11-12

    Applicant: Patrick Svedman ,  Mathias Riback ,  Karl Werner

    Inventor： Patrick Svedman ,  Mathias Riback ,  Karl Werner

    IPC: H04B17/00

    CPC classification number: H04L1/0026 ,  H04B7/0413 ,  H04B7/0452 ,  H04L1/0015 ,  H04L1/002 ,  H04L1/0025 ,  H04L5/006

    Abstract: The present application discloses systems and methods for adjusting a back-off value for a rank. In some embodiment, the method includes the steps of: (a) determining whether the rank is underutilized and (b) in response to determining that the rank is underutilized, decreasing the back-off value as a function of time while the rank remains underutilized.

    Abstract translation: 本申请公开了用于调整秩的退避值的系统和方法。 在一些实施例中，该方法包括以下步骤：（a）确定该等级是否未得到充分利用，以及（b）响应于确定该等级未得到充分利用，在该等级未得到充分利用的情况下，将后退值减小为时间的函数 。

    Method and apparatus for improving the performance of a mobile radio communications system by adjusting antenna patterns
    3.
    发明授权
    Method and apparatus for improving the performance of a mobile radio communications system by adjusting antenna patterns 有权
    通过调整天线方式改善移动无线通信系统的性能的方法和装置

    公开(公告)号：US08494588B2

    公开(公告)日：2013-07-23

    申请号：US12667817

    申请日：2007-06-06

    Applicant: Jonas Medbo ,  Mathias Riback ,  Jan-Erik Berg

    Inventor： Jonas Medbo ,  Mathias Riback ,  Jan-Erik Berg

    IPC: H04B7/00 ,  H04B1/00 ,  H04M1/00

    CPC classification number: H04B7/0617

    Abstract: The present invention relates to a method of improving the performance of a mobile radio communications system comprising at least one stationary radio transmitter for communicating with user equipments in the communications system, wherein the radio transmitter is connected to an antenna system for which the antenna pattern can be varied, the method comprising: receiving direction-of-propagation information relating to a plurality of user equipment transmission samples; selecting, based on the direction-of-propagation information, active directions for the communication of common channels from the radio transceiver; and adjusting the antenna pattern used for communication of common channels in accordance with the selected active directions in a manner so that the gain of at least one direction which has not been selected as active is lower than the gain of the selected active directions.

    Abstract translation: 本发明涉及一种提高移动无线电通信系统性能的方法，包括至少一个固定无线电发射机，用于与通信系统中的用户设备进行通信，其中无线电发射机连接到天线系统，天线方向图可以 所述方法包括：接收与多个用户设备传输样本有关的传播方向信息; 基于所述传播方向信息来选择用于从所述无线电收发机通信公共信道的活动方向; 以及根据所选择的有效方向调整用于公共信道通信的天线方向，使得至少一个方向的增益低于所选择的有效方向的增益。

    Method and apparatus for compensating for processing timing misalignment in a communication receiver
    4.
    发明授权
    Method and apparatus for compensating for processing timing misalignment in a communication receiver 有权
    用于补偿通信接收机中的处理定时未对准的方法和装置

    公开(公告)号：US08045600B2

    公开(公告)日：2011-10-25

    申请号：US12111526

    申请日：2008-04-29

    Applicant: Douglas A. Cairns ,  Stephen J. Grant ,  Andres Reial ,  Mathias Riback

    Inventor： Douglas A. Cairns ,  Stephen J. Grant ,  Andres Reial ,  Mathias Riback

    IPC: H04B1/00

    CPC classification number: H04B1/712 ,  H04B1/7105 ,  H04B1/7117 ,  H04B2201/709727

    Abstract: According to the teachings presented herein, a wireless communication apparatus compensates for timing misalignment in its received signal processing. In at least one embodiment, the apparatus estimates a set of path delays for a received signal and sets processing delays on the estimated path delays. The apparatus jointly hypothesizes combinations of fractional timing offsets for two or more paths, and computes a decision metric for each joint hypothesis that indicates the accuracy of the joint hypothesis. As non-limiting examples, the decision metric may be a signal quality metric, or a distance metric (such as between a measured net channel response and an effective net channel response reconstructed as a function of the combination of fractional timing offsets included in the joint hypothesis). The apparatus evaluates the decision metrics to identify a best estimate of timing misalignment, and correspondingly compensates coherent processing of the received signal.

    Abstract translation: 根据本文提出的教导，无线通信装置补偿其接收信号处理中的定时未对准。 在至少一个实施例中，该装置估计接收信号的一组路径延迟并且对所估计的路径延迟设置处理延迟。 该装置共同假设两个或多个路径的分数定时偏移的组合，并且计算指示联合假设的准确性的每个联合假设的决策度量。 作为非限制性示例，决策度量可以是信号质量度量或距离度量（诸如在测量的净信道响应和作为包括在联合中的分数定时偏移的组合的函数中重建的有效网络信道响应之间） 假设）。 设备评估决策度量以识别定时未对准的最佳估计，并相应地补偿接收信号的相干处理。

    Antenna reconfiguration for MIMO communications when multiplicative noise limited
    5.
    发明授权
    Antenna reconfiguration for MIMO communications when multiplicative noise limited 有权
    乘法噪声限制时MIMO通信的天线重构

    公开(公告)号：US08831127B2

    公开(公告)日：2014-09-09

    申请号：US13714613

    申请日：2012-12-14

    Applicant: Andreas Nilsson ,  Henrik Asplund ,  Mikael Coldrey ,  Jonas Medbo ,  Mathias Riback ,  Karl Werner

    Inventor： Andreas Nilsson ,  Henrik Asplund ,  Mikael Coldrey ,  Jonas Medbo ,  Mathias Riback ,  Karl Werner

    IPC: H04B7/02 ,  H04B7/04

    CPC classification number: H04B7/043 ,  H04B7/0413 ,  H04B7/086

    Abstract: The MIMO method and apparatus disclosed herein improve throughput conditions limited by multiplicative noise by reducing the gain of the data streams associated with one or more dominant signal paths between MIMO communication nodes. As used herein, multiplicative noise refers to any noise dependent on or proportional to a signal strength at a transmitting node and/or a receiving node of a wireless communication network. An additional method and apparatus are included for determining that multiplicative noise limits the throughput conditions.

    Abstract translation: 本文公开的MIMO方法和装置通过减少与MIMO通信节点之间的一个或多个主要信号路径相关联的数据流的增益来改善由乘法噪声限制的吞吐量条件。 如本文所使用的，乘法噪声是指与无线通信网络的发送节点和/或接收节点处的信号强度相关或成比例的任何噪声。 包括用于确定乘法噪声限制吞吐量条件的附加方法和装置。

    ANTENNA RECONFIGURATION FOR MIMO COMMUNICATIONS WHEN MULTIPLICATIVE NOISE LIMITED
    7.
    发明申请
    ANTENNA RECONFIGURATION FOR MIMO COMMUNICATIONS WHEN MULTIPLICATIVE NOISE LIMITED 有权
    多媒体通信的天线重构在多媒体噪声有限公司

    公开(公告)号：US20140169430A1

    公开(公告)日：2014-06-19

    申请号：US13714613

    申请日：2012-12-14

    Applicant: Andreas Nilsson ,  Henrik Asplund ,  Mikael Coldrey ,  Jonas Medbo ,  Mathias Riback ,  Karl Werner

    Inventor： Andreas Nilsson ,  Henrik Asplund ,  Mikael Coldrey ,  Jonas Medbo ,  Mathias Riback ,  Karl Werner

    IPC: H04B7/04

    CPC classification number: H04B7/043 ,  H04B7/0413 ,  H04B7/086

    Abstract: The MIMO method and apparatus disclosed herein improve throughput conditions limited by multiplicative noise by reducing the gain of the data streams associated with one or more dominant signal paths between MIMO communication nodes. As used herein, multiplicative noise refers to any noise dependent on or proportional to a signal strength at a transmitting node and/or a receiving node of a wireless communication network. An additional method and apparatus are included for determining that multiplicative noise limits the throughput conditions.

    Abstract translation: 本文公开的MIMO方法和装置通过减少与MIMO通信节点之间的一个或多个主要信号路径相关联的数据流的增益来改善由乘法噪声限制的吞吐量条件。 如本文所使用的，乘法噪声是指与无线通信网络的发送节点和/或接收节点处的信号强度相关或成比例的任何噪声。 包括用于确定乘法噪声限制吞吐量条件的附加方法和装置。

    Adaptive antenna transmission and antenna calibration
    8.
    发明授权
    Adaptive antenna transmission and antenna calibration 有权
    自适应天线传输和天线校准

    公开(公告)号：US08548399B2

    公开(公告)日：2013-10-01

    申请号：US12665567

    申请日：2007-06-21

    Applicant: Henrik Asplund ,  Jonas Medbo ,  Mathias Riback

    Inventor： Henrik Asplund ,  Jonas Medbo ,  Mathias Riback

    IPC: H03C1/52

    CPC classification number: H04B17/12 ,  H04B7/0613 ,  H04B17/103

    Abstract: The present invention relates to a method for adapting transmission parameters in a transmitter Tx in communication with at least one antenna 27; 38; 47; 57; 77, 88. The method comprises: transmitting a signal from the transmitter Tx measuring at least one reflection coefficient S11 of said signal for each antenna 27; 38; 47; 57; 77, 88, and adapting the transmission parameters based on the measured reflection coefficient S11. The antenna could be a transmit antenna and/or a receive antenna. In a preferred embodiment antenna calibration may be performed by measuring propagation time for each individual transmitter chain 481, 482; 781, 782, and compensate for differences in time delay between the individual transmitter chains 481, 482; 781, 782 to assure that the signal is transmitted simultaneously from all transmit antennas.

    Abstract translation: 本发明涉及一种适配与至少一个天线27通信的发射机Tx中的传输参数的方法; 38; 47; 57; 该方法包括：从发射机Tx传输测量每个天线27的所述信号的至少一个反射系数S11的信号; 38; 47; 57; 基于所测量的反射系数S11来调整传输参数。 天线可以是发射天线和/或接收天线。 在优选实施例中，天线校准可以通过测量每个单独的发射机链481,482的传播时间来执行; 781,782，并且补偿各个发射机链481,482之间的时间延迟的差异; 781,782以确保信号从所有发射天线同时传输。

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