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    DISTRIBUTED ANTENNA SYSTEM AND METHOD FOR ENHANCED POSITIONING
    81.
    发明申请
    DISTRIBUTED ANTENNA SYSTEM AND METHOD FOR ENHANCED POSITIONING 有权
    分布式天线系统和增强定位方法

    公开(公告)号：US20130336224A1

    公开(公告)日：2013-12-19

    申请号：US13992917

    申请日：2011-12-16

    申请人： Alexei Davydov ,  Alexander Maltsev ,  Kamran Etemad ,  Gregory Morozov ,  Vadim Sergeyev

    发明人： Alexei Davydov ,  Alexander Maltsev ,  Kamran Etemad ,  Gregory Morozov ,  Vadim Sergeyev

    IPC分类号： H04W4/02

    CPC分类号： H04W52/0251 ,  H04B7/2656 ,  H04L5/001 ,  H04L5/0033 ,  H04W4/02 ,  H04W4/70 ,  H04W8/186 ,  H04W28/0205 ,  H04W72/048 ,  H04W72/0486 ,  H04W88/085

    摘要： Embodiments of a distributed antenna system (DAS) and method for enhanced positioning in a wireless network are generally described herein. In some embodiments, an enhanced Node-B (eNB) operates as part of a DAS that includes one or more nodes having the same cell ID as the eNB. The eNB is to transmit a UE-specific reference signal and configure one or more of the other nodes of the cell to transmit UE-specific reference signals that are distinguishable from each other and from the UE-specific reference signal that is transmitted by the eNB. The eNB may receive location estimate information from user equipment (UE) that is determined at least in part from the UE-specific reference signals. The eNB may also configure the nodes to perform cooperative OFDMA transmission techniques for the UEs operating in the cell.

    摘要翻译： 分布式天线系统（DAS）的实施例和用于在无线网络中增强定位的方法在本文中大体上被描述。 在一些实施例中，增强型节点B（eNB）作为DAS的一部分操作，该DAS包括具有与eNB相同的小区ID的一个或多个节点。 eNB将发送UE专用参考信号，并且配置小区的其他节点中的一个或多个以发送可以彼此区分的UE特定参考信号，并且从由eNB发送的UE专用参考信号 。 eNB可以从至少部分地根据UE特定参考信号确定的用户设备（UE）接收位置估计信息。 eNB还可以配置节点以对在小区中操作的UE执行协作OFDMA传输技术。

    Increased discrete point processing in an OFDM communication system
    86.
    发明申请
    Increased discrete point processing in an OFDM communication system 有权
    在OFDM通信系统中增加离散点处理

    公开(公告)号：US20060115012A1

    公开(公告)日：2006-06-01

    申请号：US11291800

    申请日：2005-11-30

    申请人： John Sadowsky ,  Alexander Maltsev ,  Vadim Sergeyev ,  Alexei Davydov

    发明人： John Sadowsky ,  Alexander Maltsev ,  Vadim Sergeyev ,  Alexei Davydov

    IPC分类号： H04K1/10

    CPC分类号： H04L27/2602 ,  H04L27/2607

    摘要： Methods and apparatus provide increased symbol length with more subcarriers in a fixed-bandwidth system. The subcarriers spacing may be reduced to provide increased symbol length and enable higher throughput. In one implementation, a system compatible with the IEEE P802.11n proposal can use 128 subcarriers in 20 MHz operation to provide increased throughput in lower-bandwidth channel operation.

    摘要翻译： 方法和装置在固定带宽系统中提供具有更多子载波的增加的符号长度。 可以减小子载波间隔以提供增加的符号长度并实现更高的吞吐量。 在一个实现中，与IEEE P802.11n提议兼容的系统可以在20MHz操作中使用128个子载波来在较低带宽信道操作中提供增加的吞吐量。

    Systems and methods for adaptive bit loading in a multiple antenna orthogonal frequency division multiplexed communication system
    88.
    发明申请
    Systems and methods for adaptive bit loading in a multiple antenna orthogonal frequency division multiplexed communication system 有权
    多天线正交频分复用通信系统中自适应比特加载的系统和方法

    公开(公告)号：US20050147076A1

    公开(公告)日：2005-07-07

    申请号：US10750587

    申请日：2003-12-29

    申请人： John Sadowsky ,  Minnie Ho ,  Sumeet Sandhu ,  Alexander Maltsev ,  Eric Jacobsen ,  Ali Sadri

    发明人： John Sadowsky ,  Minnie Ho ,  Sumeet Sandhu ,  Alexander Maltsev ,  Eric Jacobsen ,  Ali Sadri

    IPC分类号： H04L1/06 ,  H04L27/26 ,  H04W16/28 ,  H04W74/02 ,  H04J1/00

    CPC分类号： H04W16/28 ,  H04B7/0408 ,  H04L27/2602 ,  H04W74/02

    摘要： In an orthogonal frequency division multiplexed (OFDM) system, a transmitter and/or receiver communicate separate data streams on non-orthogonal spatial channels. Each spatial channel may use the same set of OFDM subcarriers and may take advantage of the multipath characteristics of the spatial channel allowing the communication of additional data without an increase in frequency bandwidth. Space-frequency subcarrier modulation assignments may be dynamically assigned on a per subcarrier basis as well as a per spatial channel basis to help maximize the data-carrying capacity of the channel. In some embodiments, each of the spatial channels may be associated with one of a plurality of spatially diverse antennas. In other embodiments, beamforming may be performed to allow the transmission and/or reception of signals within the spatial channels.

    摘要翻译： 在正交频分复用（OFDM）系统中，发射机和/或接收机在非正交空间信道上传送单独的数据流。 每个空间信道可以使用相同的OFDM子载波集合，并且可以利用空间信道的多径特性，允许附加数据的通信而不增加频带宽度。 可以在每个子载波基础上以及每个空间信道基础上动态分配空频子载波调制分配，以帮助最大化信道的数据承载能力。 在一些实施例中，每个空间信道可以与多个空间多样的天线中的一个相关联。 在其他实施例中，可以执行波束成形以允许空间信道内的信号的发送和/或接收。

    MILLIMETER-WAVE LINE OF SIGHT MIMO COMMUNICATION SYSTEM FOR INDOOR APPLICATIONS
    90.
    发明申请
    MILLIMETER-WAVE LINE OF SIGHT MIMO COMMUNICATION SYSTEM FOR INDOOR APPLICATIONS 有权
    用于室内应用的MILLIMETER-WAVE LINE OF SIGHT MIMO通信系统

    公开(公告)号：US20140177742A1

    公开(公告)日：2014-06-26

    申请号：US14127789

    申请日：2013-10-16

    申请人： Alexander Maltsev ,  Ali Sadri ,  Andrey Pudeyev ,  Carlos Cordeiro

    发明人： Alexander Maltsev ,  Ali Sadri ,  Andrey Pudeyev ,  Carlos Cordeiro

    IPC分类号： H04L27/26

    CPC分类号： H04L27/2601 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/086 ,  H04B7/10 ,  H04L27/2626 ,  H04L27/2647

    摘要： A Multiple-Input Multiple-Output (MIMO) communication system is described. The system may include a transmitting device having at least two transmitting antennae, each of the at least two transmitting antenna is configured to form and/or steer directional beam signals, and a receiving device having at least two receiving antennae. The transmitting device and the receiving device are configured and disposed such that illuminated spots at the receiving device produced by the beam signals of the transmitting antennae are smaller than spatial separation between neighboring receiving antennae and/or resolution spots from the receiving antenna are smaller than spatial separation between the transmitting antennae.

    摘要翻译： 描述了多输入多输出（MIMO）通信系统。 该系统可以包括具有至少两个发射天线的发射设备，所述至少两个发射天线中的每一个被配置成形成和/或引导定向波束信号，以及具有至少两个接收天线的接收设备。 发送装置和接收装置被配置和布置成使得由发射天线的波束信号产生的接收装置处的照明点小于相邻接收天线和/或接收天线的分辨率点之间的空间间隔小于空间 发射天线之间的分离。