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    Scheduling QOS flows in broadband wireless communication systems
    11.
    发明授权
    Scheduling QOS flows in broadband wireless communication systems 有权
    在宽带无线通信系统中调度QOS流

    公开(公告)号：US08923157B2

    公开(公告)日：2014-12-30

    申请号：US12264051

    申请日：2008-11-03

    Applicant: Arnab Das ,  Ritesh Madan ,  Sundeep Rangan ,  Sanjay Shakkottai ,  Siddharth Ray

    Inventor： Arnab Das ,  Ritesh Madan ,  Sundeep Rangan ,  Sanjay Shakkottai ,  Siddharth Ray

    IPC: G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04L12/801 ,  H04L12/54 ,  H04L12/851 ,  H04L12/841 ,  H04L12/835 ,  H04L12/923 ,  H04L12/927 ,  H04L12/911 ,  H04W72/12

    CPC classification number: H04L47/10 ,  H04L47/14 ,  H04L47/2441 ,  H04L47/283 ,  H04L47/30 ,  H04L47/70 ,  H04L47/762 ,  H04L47/803 ,  H04L47/824 ,  H04W72/12 ,  H04W72/1205 ,  H04W72/1231

    Abstract: Systems and methodologies are described that facilitate enhanced resource scheduling for a wireless communication system. As described herein, packets associated with a common flow that arrive within a predetermined time period following a leading packet associated with the flow can be grouped into respective packet bursts. Subsequently, system bandwidth, transmit power, and/or other communication resources can be scheduled based on an analysis of the respective packet bursts. As provided herein, by analyzing respective packet bursts in lieu of individual packets, computational and resource overhead required for resource scheduling can be significantly reduced. In one example described herein, a resource schedule is determined by selecting one or more flows to be assigned bandwidth from among a plurality of flows based on an analysis of packet bursts respectively associated with the flows. Sufficient bandwidth can subsequently be scheduled for the selected flows for transmission of the respectively associated packet bursts.

    Abstract translation: 描述了促进无线通信系统的增强的资源调度的系统和方法。 如本文所述，与在与流相关联的前导分组之后的预定时间段内到达的公共流相关联的分组可以被分组为相应的分组突发。 随后，可以基于相应分组突发的分析来调度系统带宽，发射功率和/或其他通信资源。 如本文提供的，通过分析各个分组突发来代替各个分组，可以显着地减少资源调度所需的计算和资源开销。 在本文描述的一个示例中，基于与流分别相关联的分组突发的分析，通过从多个流中选择要分配带宽的一个或多个流来确定资源调度。 随后可以为所选择的流调度足够的带宽以传输分别相关联的分组突发。

    Scheduling best effort flows in broadband wireless networks
    12.
    发明授权
    Scheduling best effort flows in broadband wireless networks 失效
    在宽带无线网络中安排尽力而为的流程

    公开(公告)号：US08619572B2

    公开(公告)日：2013-12-31

    申请号：US12261335

    申请日：2008-10-30

    Applicant: Ritesh K. Madan ,  Arnab Das ,  Sundeep Rangan ,  Siddharth Ray

    Inventor： Ritesh K. Madan ,  Arnab Das ,  Sundeep Rangan ,  Siddharth Ray

    IPC: G01R31/08

    CPC classification number: H04L47/6265 ,  H04L47/50 ,  H04L47/566

    Abstract: Systems and methodologies are described that facilitate scheduling best effort flows in broadband or wideband wireless communication networks. The systems can include devices and/or component that effectuate associating utility functions to multiple disparate flows based on traffic conditions extant in the wireless system, ascertaining the average rate at which the flow has been serviced in the past, and utilizing the utility function associated with the flow or the average rate that the flow has been serviced in the past to optimally schedule the flow.

    Abstract translation: 描述了有助于调度宽带或宽带无线通信网络中的努力流程的系统和方法。 该系统可以包括基于无线系统中存在的交通状况来实现将效用函数与多个不同的流相关联的设备和/或组件，确定在过去服务流的平均速率，并利用与 流量或流量在过去服务的平均速率，以最佳地安排流量。

    SCHEDULING BEST EFFORT FLOWS IN BROADBAND WIRELESS NETWORKS
    14.
    发明申请
    SCHEDULING BEST EFFORT FLOWS IN BROADBAND WIRELESS NETWORKS 失效
    在宽带无线网络中调度最佳效果流

    公开(公告)号：US20090116390A1

    公开(公告)日：2009-05-07

    申请号：US12261335

    申请日：2008-10-30

    Applicant: Ritesh K. Madan ,  Arnab Das ,  Sundeep Rangan ,  Siddharth Ray

    Inventor： Ritesh K. Madan ,  Arnab Das ,  Sundeep Rangan ,  Siddharth Ray

    IPC: H04L12/26

    CPC classification number: H04L47/6265 ,  H04L47/50 ,  H04L47/566

    Abstract: Systems and methodologies are described that facilitate scheduling best effort flows in broadband or wideband wireless communication networks. The systems can include devices and/or component that effectuate associating utility functions to multiple disparate flows based on traffic conditions extant in the wireless system, ascertaining the average rate at which the flow has been serviced in the past, and utilizing the utility function associated with the flow or the average rate that the flow has been serviced in the past to optimally schedule the flow.

    Abstract translation: 描述了有助于调度宽带或宽带无线通信网络中的努力流程的系统和方法。 该系统可以包括基于无线系统中存在的交通状况来实现将效用函数与多个不同的流相关联的设备和/或组件，确定在过去服务流的平均速率，并利用与 流量或流量在过去服务的平均速率，以最佳地安排流量。

    Methods and apparatus for reducing or avoiding use of non-shift based divisions in a communications device
    16.
    发明授权
    Methods and apparatus for reducing or avoiding use of non-shift based divisions in a communications device 有权
    用于减少或避免在通信设备中使用基于非移位的划分的方法和装置

    公开(公告)号：US08346829B2

    公开(公告)日：2013-01-01

    申请号：US12412340

    申请日：2009-03-26

    Applicant: Siddharth Ray ,  Sundeep Rangan

    Inventor： Siddharth Ray ,  Sundeep Rangan

    IPC: G06F7/00 ,  G06F17/10 ,  G06F7/52

    CPC classification number: G06F17/10 ,  H04L25/03006 ,  H04L2025/0342 ,  H04L2025/03426

    Abstract: Methods and apparatus which reduce or completely eliminate non-shift based divisions as part of estimating transmitted symbols and/or generating slicing parameters corresponding to two symbol transmission streams in a wireless communication system are described. A linear least squares error estimation filtering module performs symbol estimations and/or slicing parameter generation while avoiding non-shift based division operations. The linear least squares estimation module generates intermediate parameters, and implements equations which facilitate symbol estimation utilizing shift based divisions while avoiding non-shift based divisions.

    Abstract translation: 描述了作为在无线通信系统中估计传输符号和/或生成与两个符号传输流相对应的限幅参数的一部分来减少或完全消除基于非移位的部分的方法和装置。 线性最小二乘误差估计滤波模块执行符号估计和/或限制参数生成，同时避免基于非移位的划分操作。 线性最小二乘估计模块生成中间参数，并且实现方便符号估计的等式，利用基于移位的划分，同时避免基于非移位的划分。

    Scaling methods and apparatus using SNR estimate to avoid overflow
    18.
    发明授权
    Scaling methods and apparatus using SNR estimate to avoid overflow 失效
    使用SNR估计的缩放方法和装置避免溢出

    公开(公告)号：US08311143B2

    公开(公告)日：2012-11-13

    申请号：US12404956

    申请日：2009-03-16

    Applicant: Siddharth Ray ,  Sundeep Rangan

    Inventor： Siddharth Ray ,  Sundeep Rangan

    IPC: H04B7/02

    CPC classification number: H04B7/0617 ,  H04B7/0848 ,  H04L1/0001 ,  H04L1/20 ,  H04L25/0206 ,  H04L2025/03426

    Abstract: Methods and apparatus for avoiding overflow and underflow conditions through the determination of appropriate scaling factors in signal estimation processing in a receiver are described. The receiver estimates transmitted symbols from one or more transmitter device antennas, while avoiding underflow and overflow conditions. A pilot based noise estimate and an estimated expected received signal power, corresponding to a transmit antenna, are used to generate an SNR corresponding to the transmit antenna. The generated SNR is used to determine, e.g., select from a fixed size set of predetermined scale factor values, a scale factor to be used for estimation processing associated with the transmit antenna. In some embodiments, the generated scaling factors are used by a fixed point processing linear least squares error estimation module. Scaling factor determination is performed at a rate which is slower than the rate at which symbols are received from a transmit antenna.

    Abstract translation: 描述了通过在接收机中的信号估计处理中确定适当的缩放因子来避免溢出和下溢条件的方法和装置。 接收机估计来自一个或多个发射机设备天线的发送符号，同时避免下溢和溢出条件。 使用对应于发射天线的基于导频的噪声估计和估计的预期接收信号功率来产生对应于发射天线的SNR。 所生成的SNR用于确定例如从预定比例因子值的固定大小集合中选择要用于与发射天线相关联的估计处理的比例因子。 在一些实施例中，生成的缩放因子由固定点处理线性最小二乘误差估计模块使用。 缩放因子确定以比从发送天线接收符号的速率慢的速率执行。

    Division of the scheduling algorithm into background and foreground algorithms
    19.
    发明授权
    Division of the scheduling algorithm into background and foreground algorithms 有权
    将调度算法分为背景和前景算法

    公开(公告)号：US08139533B2

    公开(公告)日：2012-03-20

    申请号：US12261297

    申请日：2008-10-30

    Applicant: Ritesh K. Madan ,  Arnab Das ,  Sundeep Rangan ,  Siddharth Ray

    Inventor： Ritesh K. Madan ,  Arnab Das ,  Sundeep Rangan ,  Siddharth Ray

    IPC: H04W4/00

    CPC classification number: H04L47/823 ,  H04L47/70 ,  H04W16/22 ,  H04W72/04 ,  H04W72/12

    Abstract: Systems and methodologies are described that facilitate dividing scheduling algorithms into background and foreground aspects capable of simultaneously servicing a multiplicity of disparate flows in wideband communications networks. The systems provided herein arbitrarily select prospective time horizons, generate optimal bandwidth allocation targets based on a plurality of flows observed by the system, and utilizes the optimal bandwidth targets to assign flows to users over the entirety of the prospective time horizon.

    Abstract translation: 描述了有助于将调度算法分解成能够同时服务于宽带通信网络中的多个不同流的背景和前景方面的系统和方法。 本文提供的系统任意选择预期时间间隔，基于系统观察到的多个流生成最优带宽分配目标，并利用最优带宽目标在整个预期时间范围内为用户分配流量。

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