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    Method and apparatus for transmitting wireless signals on multiple frequency channels in a frequency agile network
    4.
    发明授权
    Method and apparatus for transmitting wireless signals on multiple frequency channels in a frequency agile network 有权
    用于在频率敏捷网络中的多个频率信道上发送无线信号的方法和装置

    公开(公告)号：US07039412B2

    公开(公告)日：2006-05-02

    申请号：US10744318

    申请日：2003-12-22

    申请人： Sumeet Sandhu ,  Qinghua Li

    发明人： Sumeet Sandhu ,  Qinghua Li

    IPC分类号： H04Q7/20 ,  H04Q5/22 ,  H04B7/216

    CPC分类号： H04L1/0072 ,  H04L1/0003 ,  H04L1/0006 ,  H04L1/0075 ,  H04L1/0079 ,  H04L1/0083 ,  H04L1/009 ,  H04L27/261 ,  H04W74/02

    摘要： A mixed data unit for use in a wireless network may include a first portion having information that is coded over a single frequency channel and a second portion having information that is coded across multiple frequency channels. In at least one embodiment, the first portion includes duration related information that may be used by legacy client devices within the network to determine a duration for which the legacy device is to remain quiet to avoid packet collisions in the network.

    摘要翻译： 用于无线网络的混合数据单元可以包括具有通过单个频率信道编码的信息的第一部分和具有在多个频率信道上编码的信息的第二部分。 在至少一个实施例中，第一部分包括可由网络内的传统客户端设备使用的持续时间相关信息，以确定遗留设备保持安静的持续时间，以避免网络中的分组冲突。

    Techniques for heterogeneous radio cooperation
    5.
    发明申请
    Techniques for heterogeneous radio cooperation 审中-公开
    异地无线电合作技术

    公开(公告)号：US20070076649A1

    公开(公告)日：2007-04-05

    申请号：US11239984

    申请日：2005-09-30

    申请人： Xintian Lin ,  Qinghua Li ,  Sumeet Sandhu

    发明人： Xintian Lin ,  Qinghua Li ,  Sumeet Sandhu

    IPC分类号： H04Q7/00

    CPC分类号： H04W76/15 ,  H04W36/14 ,  H04W84/042 ,  H04W84/12 ,  H04W88/06

    摘要： A cooperative communications manager module establishes a first wireless link with a client device using a first channel frequency and dispatches a first message to the client device over the first channel frequency. The cooperative communications manager module establishes a second wireless link with a destination node and controls the cooperative transmission of the first message simultaneously with the client device to the destination node over the second wireless link using a second channel frequency. Other embodiments are described and claimed.

    摘要翻译： 协作通信管理器模块使用第一信道频率与客户端设备建立第一无线链路，并且通过第一信道频率向客户端设备发送第一消息。 协作通信管理器模块与目的地节点建立第二无线链路，并且使用第二信道频率通过第二无线链路来控制与客户端设备同时发送第一消息到目的地节点。 描述和要求保护其他实施例。

    MIMO transmitter for transmitting a group of sequential OFDM symbols using a plurality of antennas
    7.
    发明授权
    MIMO transmitter for transmitting a group of sequential OFDM symbols using a plurality of antennas 有权
    MIMO发射机，用于使用多个天线发送一组顺序OFDM符号

    公开(公告)号：US08396147B2

    公开(公告)日：2013-03-12

    申请号：US12757117

    申请日：2010-04-09

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

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

    IPC分类号： H04K1/10 ,  H04L27/28

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

    摘要： A MIMO transmitter and method for transmitting a group of sequential OFDM symbols on a downlink channel using a plurality of antennas is disclosed herein. Groups of OFDM subcarriers are individually modulated in accordance with spatial-frequency subcarrier modulation assignments to generate groups of symbol-modulated subcarriers, corresponding symbol-modulated subcarriers are combined for transmission on each of a plurality of spatial channels, and beamforming is performed on the combined symbol-modulated subcarriers for transmission over the spatial channels. The 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. The spatial-frequency subcarrier modulation assignments for each group are determined based on feedback by a receiver, which is determined from spatial channel characteristics of the spatial channels.

    摘要翻译： 这里公开了一种用于使用多个天线在下行链路信道上发送一组顺序OFDM符号的MIMO发射器和方法。 根据空间 - 频率副载波调制分配对OFDM子载波组进行单独调制，以生成符号调制子载波组，将多个空间信道中的每一个组合对应的符号调制副载波进行传输，并对组合 用于在空间信道上传输的符号调制副载波。 信道包括多个OFDM子载波组和每个子载波组内的OFDM子载波，并且在每组顺序OFDM符号内具有相同的空间频率副载波调制分配。 基于由空间信道的空间信道特性确定的接收机的反馈来确定每个组的空间频率副载波调制分配。

    MIMO transmitter and methods for transmitting OFDM symbols with cyclic-delay diversity
    9.
    发明授权
    MIMO transmitter and methods for transmitting OFDM symbols with cyclic-delay diversity 有权
    MIMO发射机和用于发送具有循环延迟分集的OFDM符号的方法

    公开(公告)号：US08126077B2

    公开(公告)日：2012-02-28

    申请号：US12643035

    申请日：2009-12-21

    申请人： Sumeet Sandhu

    发明人： Sumeet Sandhu

    IPC分类号： H04B7/02 ,  H04L1/02

    CPC分类号： H04L1/0071 ,  H04L1/0618 ,  H04L5/0023 ,  H04L25/0216 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2626 ,  H04L27/36

    摘要： A multiple-input multiple output (MIMO) transmitter and methods for transmitting orthogonal frequency division multiplexed (OFDM) symbols with cyclic-delay diversity (CDD) are generally described herein. In some embodiments, a base station uses a number of antennas for MIMO transmission of OFDM symbols. For the number of antennas, quadrature-amplitude modulated (QAM) symbols are distributed across a group of OFDM tones of a block comprising the group of tones and a group of OFDM symbols. An incremented cyclic delay is applied to the QAM symbols of the block associated with each subsequent of the antennas for CDD transmission. Each blocks is transmitted by an associated one of the antennas.

    摘要翻译： 多输入多输出（MIMO）发射机和用于发送具有循环延迟分集（CDD）的正交频分复用（OFDM）符号的方法）。 在一些实施例中，基站使用多个天线进行OFDM符号的MIMO传输。 对于天线数量，正交幅度调制（QAM）符号分布在包括音调组和一组OFDM符号的块的一组OFDM音调上。 对与用于CDD传输的每个后续天线相关联的块的QAM符号应用递增的循环延迟。 每个块由相关联的一个天线发送。

    Device, system, and method of resource allocation in a wireless network
    10.
    发明授权
    Device, system, and method of resource allocation in a wireless network 有权
    无线网络资源分配的设备，系统和方法

    公开(公告)号：US08077802B2

    公开(公告)日：2011-12-13

    申请号：US12049766

    申请日：2008-03-17

    申请人： Sumeet Sandhu ,  Feng Xue

    发明人： Sumeet Sandhu ,  Feng Xue

    IPC分类号： H04L27/04 ,  H04L23/00 ,  H04B1/00 ,  H04W72/04 ,  H04J3/16

    CPC分类号： H04L5/0037 ,  H04L5/0023 ,  H04L5/006 ,  H04W72/0453 ,  H04W72/082 ,  Y02D70/1224 ,  Y02D70/124 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/166

    摘要： Device, system, and method of resource allocation in a wireless network. Embodiments include optimal space-frequency architectures for very high peak rates in wireless systems. For example, an apparatus for wireless communication in a power-limited, very wideband system includes a wireless communication device having a media access controller (MAC) and a physical layer (PHY) that are adapted for a multiple-input-multiple-output (MIMO) orthogonal frequency-division multiple access (OFDMA) communication scheme; a plurality of antennas, operationally coupled to said device, to send and receive wireless communication signals according to the MIMO-OFDMA communication scheme; and a resource allocator, to allocate transmission resources of the device into desired MIMO channels optimized according to at least one of signal-to-noise ratio (SNR), bandwidth, number of users, and signal-to-noise-plus-interference ratio (SINR).

    摘要翻译： 无线网络资源分配的设备，系统和方法。 实施例包括用于无线系统中极高峰值速率的最佳空频架构。 例如，在功率受限的非常宽带系统中的用于无线通信的装置包括具有媒体接入控制器（MAC）和物理层（PHY）的无线通信设备，该物理层适用于多输入多输出（ MIMO）正交频分多址（OFDMA）通信方案; 多个天线，可操作地耦合到所述设备，以根据MIMO-OFDMA通信方案发送和接收无线通信信号; 以及资源分配器，用于将所述设备的传输资源分配到根据信噪比（SNR），带宽，用户数量以及信噪比加干扰比中的至少一个优化的期望MIMO信道中 （SINR）。