利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

42 条记录 (耗时 0.026 秒)

    MULTIDIMENSIONAL CONSTELLATIONS FOR CODED TRANSMISSION
    12.
    发明申请
    MULTIDIMENSIONAL CONSTELLATIONS FOR CODED TRANSMISSION 有权
    用于编码传输的多维协议

    公开(公告)号：US20090245401A1

    公开(公告)日：2009-10-01

    申请号：US12413262

    申请日：2009-03-27

    申请人： Rabih Chrabieh ,  Ozgur Dural

    发明人： Rabih Chrabieh ,  Ozgur Dural

    IPC分类号： H04L27/28 ,  H04L27/00

    CPC分类号： H04L1/0041 ,  H04L1/0058 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/006

    摘要： Techniques for rotating and transmitting multidimensional constellations are disclosed. A method for rotating a multidimensional constellation may include constructing a first rotation matrix, constructing a second rotation matrix, applying orthogonality constraints to the first and second rotation matrices; selecting an optimizing rotation matrix from the first and second rotation matrices; and rotating the multidimensional constellation using the optimizing rotation matrix. Constructing the first rotation matrix and second rotation matrices may include constructing a first column that includes first matrix elements based on the number of axes in the multidimensional constellation, and additional columns that include permutations of the first matrix elements.

    摘要翻译： 公开了用于旋转和传送多维星座的技术。 旋转多维星座的方法可以包括构造第一旋转矩阵，构造第二旋转矩阵，将正交约束应用于第一和第二旋转矩阵; 从所述第一和第二旋转矩阵中选择优化旋转矩阵; 并使用优化旋转矩阵旋转多维星座。 构造第一旋转矩阵和第二旋转矩阵可以包括基于多维星座图中的轴的数量构建包括第一矩阵元素的第一列，以及包括第一矩阵元素的排列的附加列。

    Adaptive loading for orthogonal frequency division multiplex (OFDM) communication systems
    15.
    发明授权
    Adaptive loading for orthogonal frequency division multiplex (OFDM) communication systems 有权
    用于正交频分复用（OFDM）通信系统的自适应加载

    公开(公告)号：US08488691B2

    公开(公告)日：2013-07-16

    申请号：US12266842

    申请日：2008-11-07

    申请人： Rabih Chrabieh ,  Samir S. Soliman ,  Ozgur Dural

    发明人： Rabih Chrabieh ,  Samir S. Soliman ,  Ozgur Dural

    IPC分类号： H04L27/28

    CPC分类号： H04W28/08 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/0064 ,  H04L5/0085

    摘要： An orthogonal frequency division multiplex (OFDM) transmitter may adaptively load each sub-carrier, buffering less than an OFDM frame in order to reduce hardware requirements and latency. The transmitter may use feedback information from the receiver regarding the quality of the sub-carriers. In addition, combining repetition and puncturing to achieve a desired date rate per class further reduces hardware by simplifying or even eliminating an interleaver. Additional mitigation and even performance enhancement techniques are incorporated to address inter-class boundaries within an OFDM frame, such as introducing transition classes. Channel state information may be reported in various formats including full bitmap, changed subchannels, and reported bad subchannels.

    摘要翻译： 正交频分复用（OFDM）发射机可以自适应地加载每个子载波，缓冲小于OFDM帧，以便减少硬件要求和等待时间。 发射机可以使用来自接收机的关于子载波的质量的反馈信息。 此外，组合重复和删截以实现每个类别的所需日期速率通过简化或甚至消除交织器来进一步降低硬件。 并入了额外的缓解和甚至性能增强技术来解决OFDM帧内的类间边界，例如引入转换类。 信道状态信息可以以各种格式报告，包括完整的位图，改变的子信道和报告的坏子信道。

    COORDINATED FORWARD LINK BLANKING AND POWER BOOSTING FOR FLEXIBLE BANDWIDTH SYSTEMS
    16.
    发明申请
    COORDINATED FORWARD LINK BLANKING AND POWER BOOSTING FOR FLEXIBLE BANDWIDTH SYSTEMS 审中-公开
    用于柔性带宽系统的协调的前向链路保护和功率提升

    公开(公告)号：US20130114571A1

    公开(公告)日：2013-05-09

    申请号：US13432240

    申请日：2012-03-28

    申请人： Soumya DAS ,  Ozgur DURAL ,  Edwin C. PARK

    发明人： Soumya DAS ,  Ozgur DURAL ,  Edwin C. PARK

    IPC分类号： H04W72/08

    CPC分类号： H04W72/0453 ,  H04L1/00 ,  H04L1/0006 ,  H04W16/14 ,  H04W24/10 ,  H04W52/146 ,  H04W52/247 ,  H04W52/40 ,  H04W52/44 ,  H04W72/04 ,  H04W72/082 ,  H04W72/1215 ,  H04W72/1268 ,  H04W72/1273 ,  H04W72/1289 ,  H04W84/045 ,  H04W88/06 ,  H04W88/10

    摘要： Methods, systems, and devices are provided for coordinating forward link blanking and/or power boosting in wireless communications systems. Some embodiments include two or more bandwidth systems. The bandwidth of one bandwidth system may overlap with the bandwidth of another bandwidth system. This overlap may create interference. Coordinating forward link blanking and/or power boosting may aid in reducing the impact of this interference. Some embodiments utilize flexible bandwidth and/or normal bandwidth systems. Flexible bandwidth systems may utilize portions of spectrum that may not be big enough to fit a normal waveform, though some embodiments may utilize flexible waveforms that utilize more bandwidth than a normal waveform.

    摘要翻译： 提供了用于协调无线通信系统中的前向链路消隐和/或功率提升的方法，系统和设备。 一些实施例包括两个或更多个带宽系统。 一个带宽系统的带宽可能与另一个带宽系统的带宽重叠。 这种重叠可能会产生干扰。 协调前向链路消隐和/或功率提升可能有助于减少此干扰的影响。 一些实施例利用灵活的带宽和/或正常带宽系统。 灵活的带宽系统可以利用可能不够大以适应正常波形的频谱部分，尽管一些实施例可以利用利用比普通波形更多带宽的灵活波形。

    REVERSE LINK THROUGHPUT MANAGEMENT FOR FLEXIBLE BANDWIDTH SYSTEMS
    17.
    发明申请
    REVERSE LINK THROUGHPUT MANAGEMENT FOR FLEXIBLE BANDWIDTH SYSTEMS 有权
    用于柔性带宽系统的反向链路管理

    公开(公告)号：US20130114436A1

    公开(公告)日：2013-05-09

    申请号：US13457360

    申请日：2012-04-26

    申请人： Ozgur DURAL ,  Soumya DAS ,  Edwin C. PARK

    发明人： Ozgur DURAL ,  Soumya DAS ,  Edwin C. PARK

    IPC分类号： H04W24/10

    CPC分类号： H04W72/0453 ,  H04L1/00 ,  H04L1/0006 ,  H04W16/14 ,  H04W24/10 ,  H04W52/146 ,  H04W52/247 ,  H04W52/40 ,  H04W52/44 ,  H04W72/04 ,  H04W72/082 ,  H04W72/1215 ,  H04W72/1268 ,  H04W72/1273 ,  H04W72/1289 ,  H04W84/045 ,  H04W88/06 ,  H04W88/10

    摘要： Methods, systems, and devices for increasing reverse link throughput by coordination of multiple wireless systems using reverse link blanking are provided. Some embodiments involve utilizing the bandwidth of one carrier bandwidth that partially overlaps with the bandwidth of another carrier bandwidth. This overlap may create interference. Different indicators may be utilized to prompt a device, such as a mobile device, to coordinate reverse link transmission blanking on at least one of the carrier bandwidths to increase throughput for the other overlapping carrier bandwidth. For example, a base station may transmit such an indicator to the mobile device to prompt the transmission blanking. Some embodiments also include increasing transmission power for the overlapping carrier bandwidth during the transmission blanking of other carrier bandwidth. Some embodiments utilize flexible carrier bandwidths systems that may utilize portions of spectrum that may not be big enough to fit a normal bandwidth waveform.

    摘要翻译： 提供了通过使用反向链路消隐来协调多个无线系统来增加反向链路吞吐量的方法，系统和设备。 一些实施例涉及利用与另一个载波带宽的带宽部分重叠的一个载波带宽的带宽。 这种重叠可能会产生干扰。 可以利用不同的指示符来促使诸如移动设备的设备在至少一个载波带宽上协调反向链路传输消隐，以增加其他重叠载波带宽的吞吐量。 例如，基站可以将这样的指示符发送到移动设备以提示传输消隐。 一些实施例还包括在其他载波带宽的传输消隐期间增加重叠载波带宽的传输功率。 一些实施例使用灵活的载波带宽系统，其可以利用可能不够大以适应正常带宽波形的频谱部分。

    System and method of transmitting and receiving data frames
    18.
    发明授权
    System and method of transmitting and receiving data frames 有权
    发送和接收数据帧的系统和方法

    公开(公告)号：US08135015B2

    公开(公告)日：2012-03-13

    申请号：US12413120

    申请日：2009-03-27

    申请人： Amol Rajkotia ,  Krishnan Rajamani ,  Ozgur Dural ,  Samir Soliman

    发明人： Amol Rajkotia ,  Krishnan Rajamani ,  Ozgur Dural ,  Samir Soliman

    IPC分类号： H04L12/28

    CPC分类号： H04L1/1812 ,  H04L1/0059 ,  H04L1/0075 ,  H04L1/0079 ,  H04L1/0083 ,  H04W28/06

    摘要： A method of transmitting a data frame is disclosed and may include transmitting a preamble, transmitting a physical layer convergence protocol (PLCP) header, and transmitting a plurality of MAC protocol data units (MPDUs). Each MPDU may be configured to reset a convolutional decoder state after each MPDU. The method may also include transmitting an MPDU aggregation header. The MPDU aggregation header may include a count of packed MPDUs, an array of offsets, an array of lengths, a frame check sequence (FCS) for the MPDU aggregation header, a group of tail bits, or a combination thereof. Further, an end of the MPDU aggregation header may be aligned to an interleaved symbol boundary.

    摘要翻译： 公开了发送数据帧的方法，并且可以包括发送前同步码，发送物理层汇聚协议（PLCP）报头，以及发送多个MAC协议数据单元（MPDU）。 每个MPDU可被配置为在每个MPDU之后复位卷积解码器状态。 该方法还可以包括发送MPDU聚合报头。 MPDU聚合报头可以包括打包的MPDU的计数，偏移的数组，长度的数组，用于MPDU聚合报头的帧校验序列（FCS），一组尾比特或它们的组合。 此外，MPDU聚合报头的结束可以与交织的符号边界对齐。

    CELL RESELECTION ENHANCEMENT
    19.
    发明申请
    CELL RESELECTION ENHANCEMENT 失效
    细胞评估增强

    公开(公告)号：US20110110254A1

    公开(公告)日：2011-05-12

    申请号：US12941505

    申请日：2010-11-08

    申请人： Tingfang Ji ,  Peter Gaal ,  Rajat Prakash ,  Ozgur Dural ,  Ravi Palanki

    发明人： Tingfang Ji ,  Peter Gaal ,  Rajat Prakash ,  Ozgur Dural ,  Ravi Palanki

    IPC分类号： H04W36/30 ,  H04W24/00

    CPC分类号： H04W36/0066 ,  H04W36/0094 ,  H04W48/12 ,  H04W48/16 ,  H04W84/045

    摘要： Methods and apparatuses are provided that facilitate measuring frequencies for cell reselection. A base station providing a cell can be interfered by one or more closed subscriber group (CSG) cells over at least a portion of frequency utilized by the base station to serve one or more devices. The base station can determine and provide one or more parameters related to performing a measurement of a system bandwidth to one or more devices that are within range of the one or more CSG cells that includes at least a portion of the bandwidth utilized by the one or more CSG cells. The one or more devices can accordingly perform measurements of the system bandwidth of the base station for determining one or more communication metrics related to performing reselection and/or measuring other frequencies for reselection. The measurement can relate to a wideband measurement, a plurality of narrowband measurements, etc.

    摘要翻译： 提供了便于测量细胞再选择频率的方法和装置。 提供小区的基站可以被一个或多个封闭用户组（CSG）小区干扰在基站所使用的频率的至少一部分上，以服务于一个或多个设备。 该基站可以确定和提供一个或多个参数，该参数与对一个或多个CSG小区的范围内的一个或多个设备进行系统带宽的测量相关，所述一个或多个设备包括一个或多个CSG小区利用的带宽的至少一部分， 更多的CSG小区。 一个或多个设备可以相应地执行基站的系统带宽的测量，以确定与执行重新选择相关的一个或多个通信度量和/或测量用于重选的其它频率。 测量可以涉及宽带测量，多个窄带测量等。