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41 条记录 (耗时 0.022 秒)

    Resource allocation in 4G MIMO cellular uplinks
    15.
    发明授权
    Resource allocation in 4G MIMO cellular uplinks 有权
    4G MIMO蜂窝上行链路中的资源分配

    公开(公告)号：US08724573B2

    公开(公告)日：2014-05-13

    申请号：US13343398

    申请日：2012-01-04

    申请人： Narayan Prasad ,  Honghai Zhang ,  Meilong Jiang ,  Guosen Yue ,  Sampath Rangarajan

    发明人： Narayan Prasad ,  Honghai Zhang ,  Meilong Jiang ,  Guosen Yue ,  Sampath Rangarajan

    IPC分类号： H04W72/04 ,  H04W72/06

    CPC分类号： H04W72/04 ,  H04B7/0404 ,  H04W72/042 ,  H04W72/06 ,  H04W72/1257

    摘要： A method of uplink resource allocation is disclosed. The method includes computing a set of utilities for each of a finite set of transmission modes with a processor across a plurality of user devices, each having multiple transmit antennas, and iteratively allocating uplink resource blocks (RBs) and transmission modes to the plurality of user devices until all users have been allocated or no allocation is found, by selecting a mode that has a highest incremental utility sum for each user across one or more RBs, determining which user has the highest incremental utility sum, allocating the mode and RBs associated with the highest incremental utility sum to the user, and removing the allocated user from consideration. Other apparatuses, systems, and methods also are disclosed.

    摘要翻译： 公开了一种上行链路资源分配的方法。 该方法包括：通过跨多个用户设备的处理器计算一组有用传输模式的实用程序，每个用户设备具有多个发射天线，并向多个用户迭代地分配上行链路资源块（RB）和传输模式 设备，直到所有用户已经被分配或没有找到分配，通过选择对于每个用户跨越一个或多个RB具有最高增量效用总和的模式，确定哪个用户具有最高的增量效用总和，分配与 对用户的最大增量效用总和，并从分配中删除分配的用户。 还公开了其他装置，系统和方法。

    Scalable Video Multicast with Non-Overlapping Beamforming Antennas
    16.
    发明申请
    Scalable Video Multicast with Non-Overlapping Beamforming Antennas 有权
    具有非重叠波束形成天线的可扩展视频组播

    公开(公告)号：US20120188929A1

    公开(公告)日：2012-07-26

    申请号：US13046258

    申请日：2011-03-11

    申请人： Honghai Zhang ,  Yuanxi Jiang ,  Sampath Rangarajan

    发明人： Honghai Zhang ,  Yuanxi Jiang ,  Sampath Rangarajan

    IPC分类号： H04W4/06 ,  H04W88/08

    CPC分类号： H04B7/0408 ,  H04B7/0617

    摘要： A method includes initializing transmission of multicast data with non-overlapping beamforming antennas by a wireless access point responsive to multiple clients; determining a beam pattern for transmission of the data by the access point responsive to feedback on a signal-to-noise-ratio SNR of each client under every beam pattern; and scheduling a multicast of the data to the clients responsive to the determining and to one of an optimal beam streaming configuration and a sub-optimal beam streaming configuration for partitioning the beam patterns into groups for creating composite beam patterns associated with assigned modulation coding and video streams.

    摘要翻译： 一种方法包括：响应于多个客户端，通过无线接入点初始化具有非重叠波束形成天线的多播数据的传输; 响应于在每个波束图案下对每个客户端的信噪比SNR的反馈，确定由接入点传输数据的波束图案; 以及响应于所述确定而将数据的多播调度到所述客户机，以及将最佳波束流配置和次优流波束流配置中的一个调整到用于将所述波束图案划分成组以用于创建与所分配的调制编码和视频相关联的合成波束图案 流。

    METHOD FOR LTE DOWNLINK SCHEDULING WITH MIMO
    17.
    发明申请
    METHOD FOR LTE DOWNLINK SCHEDULING WITH MIMO 有权
    用于具有MIMO的LTE下行链路调度的方法

    公开(公告)号：US20120170530A1

    公开(公告)日：2012-07-05

    申请号：US13343192

    申请日：2012-01-04

    申请人： Honghai Zhang ,  Narayan Prasad ,  Sampath Rangarajan

    发明人： Honghai Zhang ,  Narayan Prasad ,  Sampath Rangarajan

    IPC分类号： H04W72/04

    CPC分类号： H04W72/0406 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0465 ,  H04B7/0626 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0046 ,  H04W72/04 ,  H04W72/042 ,  H04W72/1231

    摘要： A method for LTE or WiMAX scheduling includes collecting, by a basestation BS, channel feedback from multiple mobiles with downlink traffic. The channel feedback enables the BS to determine an achievable rate or block error probability if transmitting to a mobile with a given modulation and coding scheme MCS and multiple-input multiple-output MIMO mode. The method includes determining, by the BS, which of the mobiles is scheduled on each resource block RB and what the MCS and MIMO mode is selected for each scheduled mobile, and allocating bits on the set of the RBs assigned to each scheduled mobile.

    摘要翻译： 用于LTE或WiMAX调度的方法包括由基站BS从具有下行链路业务的多个移动台收集信道反馈。 如果使用给定的调制和编码方案MCS和多输入多输出MIMO模式发送到移动台，则信道反馈使得BS能够确定可实现的速率或块错误概率。 该方法包括由BS确定在每个资源块RB上调度哪些移动台，以及为每个调度的移动台选择哪种MCS和MIMO模式，以及分配给每个调度的移动站的RB集合上的比特。

    Sequential Sensing Scheme for Cognitive Radio Based on a Block of Received Samples
    18.
    发明申请
    Sequential Sensing Scheme for Cognitive Radio Based on a Block of Received Samples 审中-公开
    基于接收样本块的认知无线电序列感知方案

    公开(公告)号：US20110218768A1

    公开(公告)日：2011-09-08

    申请号：US12818813

    申请日：2010-06-18

    申请人： Yan Xin ,  Honghai Zhang ,  Sampath Rangarajan ,  Kyungtae Kim

    发明人： Yan Xin ,  Honghai Zhang ,  Sampath Rangarajan ,  Kyungtae Kim

    IPC分类号： G06F17/18

    CPC分类号： G06F17/18

    摘要： A method and system for determining whether a given electromagnetic frequency is in use includes applying a transformation to an amplitude of received samples, adjusting the transformed samples by a constant based on a minimum detection signal-to-noise ratio; combining the adjusted samples to produce a test statistic; and using a processor to make a determination regarding if the frequency is in use based on the test statistic exceeded or falling below a threshold, said test statistic being based on Ξq=Σi=1q×L(|ri|2−Δ), where q is the block index, ri is the ith received sample, and Δ is the constant.

    摘要翻译： 一种用于确定给定电磁频率是否在使用中的方法和系统包括将变换应用于接收样本的振幅，基于最小检测信噪比将变换的样本调整一个常数; 结合调整后的样本产生检验统计量; 并且使用处理器基于超过或低于阈值的测试统计量来确定是否使用频率，所述测试统计量基于＆Xgr; i = 1q×L（| ri | 2- ＆Dgr;），其中q是块索引，ri是第i个收集的样本，＆Dgr; 是常数。

    Scalable video multicast with non-overlapping beamforming antennas
    19.
    发明授权
    Scalable video multicast with non-overlapping beamforming antennas 有权
    具有非重叠波束成形天线的可扩展视频多播

    公开(公告)号：US08537737B2

    公开(公告)日：2013-09-17

    申请号：US13046258

    申请日：2011-03-11

    申请人： Honghai Zhang ,  Yuanxi Jiang ,  Sampath Rangarajan

    发明人： Honghai Zhang ,  Yuanxi Jiang ,  Sampath Rangarajan

    IPC分类号： H04H20/71 ,  H04W4/00 ,  H04J3/26 ,  H01Q3/00 ,  H04M1/00

    CPC分类号： H04B7/0408 ,  H04B7/0617

    摘要： A method includes initializing transmission of multicast data with non-overlapping beamforming antennas by a wireless access point responsive to multiple clients; determining a beam pattern for transmission of the data by the access point responsive to feedback on a signal-to-noise-ratio SNR of each client under every beam pattern; and scheduling a multicast of the data to the clients responsive to the determining and to one of an optimal beam streaming configuration and a sub-optimal beam streaming configuration for partitioning the beam patterns into groups for creating composite beam patterns associated with assigned modulation coding and video streams.

    摘要翻译： 一种方法包括：响应于多个客户端，通过无线接入点初始化具有非重叠波束形成天线的多播数据的传输; 响应于在每个波束图案下对每个客户端的信噪比SNR的反馈，确定由接入点传输数据的波束图案; 以及响应于所述确定而将数据的多播调度到所述客户机，以及将最佳波束流配置和次优流波束流配置中的一个调整到用于将所述波束图案划分成组以用于创建与所分配的调制编码和视频相关联的合成波束图案 流。