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    Multi-user MIMO receiver and method for receiving data units over a wideband channel
    33.
    发明授权
    Multi-user MIMO receiver and method for receiving data units over a wideband channel 有权
    多用户MIMO接收机和用于通过宽带信道接收数据单元的方法

    公开(公告)号：US08681598B2

    公开(公告)日：2014-03-25

    申请号：US13007887

    申请日：2011-01-17

    申请人： Alexander A. Maltsev ,  Ali S. Sadri ,  Sergey E. Sergeyev ,  Alexander N. Belonozhkin ,  Vadim S. Sergeyev

    发明人： Alexander A. Maltsev ,  Ali S. Sadri ,  Sergey E. Sergeyev ,  Alexander N. Belonozhkin ,  Vadim S. Sergeyev

    IPC分类号： H04J11/00 ,  H04B1/00 ,  H04L27/26

    CPC分类号： H04L27/2649 ,  H04B1/005 ,  H04B1/0057 ,  H04B1/16 ,  H04B1/406 ,  H04B7/0413 ,  H04L27/2608 ,  H04L27/2653

    摘要： A multiple-input multiple output (MIMO) receiver includes circuitry to receive a MIMO transmission through a plurality of antennas over a channel comprising two or more 20 MHz portions of bandwidth. The MIMO transmission comprises a plurality of streams, each transmitted over a corresponding spatial channel and configured for reception by multiple user stations. The MIMO receiver also includes circuitry to simultaneously accumulate signal information within at least two or more of the 20 MHz portions of bandwidth. Each 20 MHz portion comprises a plurality of OFDM subcarriers. The MIMO receiver also includes circuitry to demodulate at least one of the steams using receive beamforming techniques. In this way, multi-user protocol data units can be received.

    摘要翻译： 多输入多输出（MIMO）接收机包括通过包括两个或多个20MHz带宽部分的信道通过多个天线接收MIMO传输的电路。 MIMO传输包括多个流，每个流在相应的空间信道上传输并被配置为由多个用户站接收。 MIMO接收机还包括在20MHz带宽部分中的至少两个或更多个部分中同时累积信号信息的电路。 每个20MHz部分包括多个OFDM子载波。 MIMO接收机还包括使用接收波束成形技术解调至少一个蒸汽的电路。 以这种方式，可以接收多用户协议数据单元。

    Systems for communicating using multiple frequency bands in a wireless network
    34.
    发明授权
    Systems for communicating using multiple frequency bands in a wireless network 有权
    用于在无线网络中使用多个频带进行通信的系统

    公开(公告)号：US08340071B2

    公开(公告)日：2012-12-25

    申请号：US12685607

    申请日：2010-01-11

    申请人： Ali S. Sadri ,  Alexander Maltsev ,  Alexey Khoryaev ,  Roman Maslennikov ,  Vadim Sergeyev

    发明人： Ali S. Sadri ,  Alexander Maltsev ,  Alexey Khoryaev ,  Roman Maslennikov ,  Vadim Sergeyev

    IPC分类号： H04B7/208 ,  H04L12/28 ,  H04L12/413

    CPC分类号： H04W72/0453 ,  H04W16/28 ,  H04W84/20

    摘要： Communication signals using a first and a second frequency band in a wireless network is described herein. The first frequency band may be associated with a first beamwidth while the second frequency band may be associated with a second beamwidth. A method includes transmitting, in a first frequency band by a coordinating device, an indication of a first time resource and/or first frequency resource for a communication device to identify one or more neighbor communication devices that are capable of communicating over a second frequency band, receiving, in the first frequency band by the coordinating device, link availability information for the second frequency band based at least in part on the one or more neighbor communication devices identified as being capable of communicating over the second frequency band, and transmitting, in the first frequency band, a transmission schedule to indicate to the communication device a second time resource and/or second frequency resource in which the communication device can communicate with at least one of the one or more neighbor communications devices over the second frequency band, the transmission schedule being based at least in part on the received link availability information. Other embodiments may be described and/or claimed.

    摘要翻译： 这里描述了使用无线网络中的第一和第二频带的通信信号。 第一频带可以与第一波束宽度相关联，而第二频带可以与第二波束宽度相关联。 一种方法包括在协调设备的第一频带中发送用于通信设备的第一时间资源和/或第一频率资源的指示，以识别能够通过第二频带进行通信的一个或多个相邻通信设备 至少部分地基于被识别为能够通过第二频带通信的一个或多个相邻通信设备，在协调设备的第一频带中接收用于第二频带的链路可用性信息，以及 第一频带，用于向通信设备指示第二时间资源和/或第二频率资源的传输调度，其中通信设备可以通过第二频带与一个或多个相邻通信设备中的至少一个通信， 传输调度至少部分地基于所接收的链路可用性信息。 可以描述和/或要求保护其他实施例。

    MULTI-USER MIMO RECEIVER AND METHOD FOR RECEIVING DATA UNITS OVER A WIDEBAND CHANNEL
    35.
    发明申请
    MULTI-USER MIMO RECEIVER AND METHOD FOR RECEIVING DATA UNITS OVER A WIDEBAND CHANNEL 有权
    多用户MIMO接收器和用于通过宽带信道接收数据单元的方法

    公开(公告)号：US20110110467A1

    公开(公告)日：2011-05-12

    申请号：US13007887

    申请日：2011-01-17

    申请人： Alexander A. Maltsev ,  Ali S. Sadri ,  Sergey E. Sergeyev ,  Alexander N. Belonozhkin ,  Vadim S. Sergeyev

    发明人： Alexander A. Maltsev ,  Ali S. Sadri ,  Sergey E. Sergeyev ,  Alexander N. Belonozhkin ,  Vadim S. Sergeyev

    IPC分类号： H03K9/00

    CPC分类号： H04L27/2649 ,  H04B1/005 ,  H04B1/0057 ,  H04B1/16 ,  H04B1/406 ,  H04B7/0413 ,  H04L27/2608 ,  H04L27/2653

    摘要： A multiple-input multiple output (MIMO) receiver includes circuitry to receive a MIMO transmission through a plurality of antennas over a channel comprising two or more 20 MHz portions of bandwidth. The MIMO transmission comprises a plurality of streams, each transmitted over a corresponding spatial channel and configured for reception by multiple user stations. The MIMO receiver also includes circuitry to simultaneously accumulate signal information within at least two or more of the 20 MHz portions of bandwidth. Each 20 MHz portion comprises a plurality of OFDM subcarriers. The MIMO receiver also includes circuitry to demodulate at least one of the steams using receive beamforming techniques. In this way, multi-user protocol data units can be received.

    摘要翻译： 多输入多输出（MIMO）接收机包括通过包括两个或多个20MHz带宽部分的信道通过多个天线接收MIMO传输的电路。 MIMO传输包括多个流，每个流在相应的空间信道上传输并被配置为由多个用户站接收。 MIMO接收机还包括在20MHz带宽部分中的至少两个或更多个部分中同时累积信号信息的电路。 每个20MHz部分包括多个OFDM子载波。 MIMO接收机还包括使用接收波束成形技术解调至少一个蒸汽的电路。 以这种方式，可以接收多用户协议数据单元。

    Quasi-parallel multichannel receivers for wideband orthogonal frequency division multiplexed communications and associated methods
    36.
    发明授权
    Quasi-parallel multichannel receivers for wideband orthogonal frequency division multiplexed communications and associated methods 有权
    准并行多通道接收机，用于宽带正交频分复用通信及相关方法

    公开(公告)号：US07885178B2

    公开(公告)日：2011-02-08

    申请号：US10749902

    申请日：2003-12-29

    申请人： Alexander A. Maltsev ,  Ali S. Sadri ,  Sergey E. Sergeyev ,  Alexander N. Belonozhkin ,  Vadim S. Sergeyev

    发明人： Alexander A. Maltsev ,  Ali S. Sadri ,  Sergey E. Sergeyev ,  Alexander N. Belonozhkin ,  Vadim S. Sergeyev

    IPC分类号： H04J11/00

    CPC分类号： H04L27/2649 ,  H04B1/005 ,  H04B1/0057 ,  H04B1/16 ,  H04B1/406 ,  H04B7/0413 ,  H04L27/2608 ,  H04L27/2653

    摘要： A quasi-parallel receiver may simultaneously receive signals within several subchannels that comprise a wideband channel. The receiver includes a subchannel filter selection switch that provides a baseband signal to a selected one of a plurality of subchannel low-pass filters. A heterodyne frequency generator provides one of a plurality of heterodyne frequencies to convert an RF signal received within a selected subchannel to the baseband signal. The subchannel low-pass filters accumulate signal information from an associated one of a plurality of subchannels during a filter-input sampling interval. In some embodiments, individual analog-to-digital converters receive the accumulated signal outputs from an associated subchannel filter and generate digital signals for a subsequent Fourier transformation. In some embodiments, a normalized signal output may be provided to the analog-to-digital converters, allowing the use of lower resolution analog-to-digital converters. The analog-to-digital converters may have sampling rates based on the subchannel bandwidth.

    摘要翻译： 准并行接收机可以同时在包括宽带信道的几个子信道内接收信号。 该接收机包括一个子信道滤波器选择开关，该选择开关向多个子信道低通滤波器中选定的一个提供基带信号。 外差频发生器提供多个外差频率中的一个，以将在所选择的子信道内接收的RF信号转换为基带信号。 在滤波器输入采样间隔期间，子信道低通滤波器累积来自多个子信道中相关联的一个的信号信息。 在一些实施例中，各个模数转换器从相关联的子信道滤波器接收累加的信号输出并产生用于后续傅里叶变换的数字信号。 在一些实施例中，归一化信号输出可以被提供给模数转换器，允许使用较低分辨率的模 - 数转换器。 模数转换器可以具有基于子信道带宽的采样率。

    MIMO TRANSMITTER AND METHOD FOR TRANSMITTING A GROUP OF SEQUENTIAL OFDM SYMBOLS IN ACCORDANCE WITH AN IEEE 802.16 COMMUNICATION STANDARD
    40.
    发明申请
    MIMO TRANSMITTER AND METHOD FOR TRANSMITTING A GROUP OF SEQUENTIAL OFDM SYMBOLS IN ACCORDANCE WITH AN IEEE 802.16 COMMUNICATION STANDARD 有权
    用于根据IEEE 802.16通信标准发送一组顺序OFDM符号的MIMO发射机和方法

    公开(公告)号：US20090245405A1

    公开(公告)日：2009-10-01

    申请号：US12482689

    申请日：2009-06-11

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

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

    IPC分类号： H04K1/10 ,  H04J11/00 ,  H04L5/14

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

    摘要： A multiple-input-multiple output (MIMO) transmitter for transmitting a group of sequential orthogonal frequency division multiplexed (OFDM) symbols on a time-division duplexed (TDD) channel in accordance with an IEEE 802.16 standard using a plurality of antennas. The MIMO transmitter comprises a spatial-frequency parser to parse a block of bits into spatial-frequency blocks of a variable number of coded bits, and subcarrier modulators to individually modulate OFDM subcarriers with the spatial-frequency blocks in accordance with spatial-frequency subcarrier modulation assignments to generate groups of symbol-modulated subcarriers. The TDD channel comprises a plurality of the groups of the OFDM subcarriers, and the OFDM subcarriers within each group of subcarriers and within each group of sequential OFDM symbols have the same spatial-frequency subcarrier modulation assignments.

    摘要翻译： 一种多输入多输出（MIMO）发射机，用于使用多个天线根据IEEE 802.16标准在时分双工（TDD）信道上发送一组顺序正交频分复用（OFDM）符号。 MIMO发射机包括用于将比特块解析成可变数量的编码比特的空间频率块的空间频率解析器，以及根据空间频率副载波调制单独调制具有空间频率块的OFDM子载波的子载波调制器 用于生成符号调制子载波组的分配。 TDD信道包括多个OFDM子载波组，并且每个子载波组内的OFDM子载波和每个顺序的OFDM符号组内的OFDM子载波具有相同的空间频率副载波调制分配。