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    Channel impulse response estimation for wireless receiver
    93.
    发明授权
    Channel impulse response estimation for wireless receiver 有权
    无线接收机的信道脉冲响应估计

    公开(公告)号：US08718210B2

    公开(公告)日：2014-05-06

    申请号：US13237868

    申请日：2011-09-20

    Applicant: Mariam Motamed ,  Alexei Yurievitch Gorokhov ,  Mike L. Mccloud ,  Parvathanathan Subrahmanya

    Inventor： Mariam Motamed ,  Alexei Yurievitch Gorokhov ,  Mike L. Mccloud ,  Parvathanathan Subrahmanya

    IPC: H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08

    CPC classification number: H04L5/0051 ,  H04L25/0212 ,  H04L25/0224

    Abstract: Estimating a channel impulse response (CIR) for a wireless transmission, for example a multimedia broadcast multicast services single frequency network (MBSFN) transmission, may be performed by a receiver of an wireless subframe, without requiring operational memory in excess of what is needed for CIR estimation of unicast signaling, while providing enhanced delay spread coverage. The wireless subframe may be a MBSFN subframe. The receiver may form an aggregate vector of pilot tones extracted from an OFDM reference symbol of an wireless subframe. The receiver may subsample the aggregate vector to obtain a plurality of sub-vectors each comprising a distinct subsampling phase. The receiver may process the plurality of sub-vectors using an inverse fast Fourier transform to obtain time domain representations of each of the sub-vectors. The receiver may combine the time domain representations in various ways to obtain a CIR estimate for the wireless subframe.

    Abstract translation: 估计用于无线传输的信道脉冲响应（CIR），例如多媒体广播多播服务单频网（MBSFN）传输，可以由无线子帧的接收机执行，而不需要超过所需的操作存储器 CIR估计单播信令，同时提供增强的延迟扩展覆盖。 无线子帧可以是MBSFN子帧。 接收机可以形成从无线子帧的OFDM参考符号提取的导频音的聚合向量。 接收机可以对聚合向量进行子采样以获得每个包括不同子采样相位的多个子向量。 接收机可以使用快速傅里叶逆变换处理多个子向量，以获得每个子向量的时域表示。 接收机可以以各种方式组合时域表示以获得无线子帧的CIR估计。

    Method and apparatus for improved cell acquisition with reduced frequency error impact
    94.
    发明授权
    Method and apparatus for improved cell acquisition with reduced frequency error impact 失效
    用于改善细胞获取的方法和装置，降低频率误差影响

    公开(公告)号：US08687604B2

    公开(公告)日：2014-04-01

    申请号：US12404203

    申请日：2009-03-13

    Applicant: An-Swol Clement Hu ,  Jittra Jootar ,  Parvathanathan Subrahmanya

    Inventor： An-Swol Clement Hu ,  Jittra Jootar ,  Parvathanathan Subrahmanya

    IPC: H04J3/00

    CPC classification number: H04B1/7083 ,  H04B1/70735

    Abstract: A method and apparatus for improved initial cell acquisition with reduced frequency error impact. The method determines the slot timing of a transmission, identifies the primary scrambling code and frame timing using the common pilot channel, and provides a path profile using a pseudorandom noise (PN) search. An apparatus using a cell searcher that performs the method is also described.

    Abstract translation: 一种用于改善初始细胞获取并减少频率误差影响的方法和装置。 该方法确定传输的时隙定时，使用公共导频信道识别主扰码和帧定时，并且使用伪随机噪声（PN）搜索来提供路径简档。 还描述了使用执行该方法的小区搜索器的装置。

    Protocol stack power optimization for wireless communications devices
    95.
    发明授权
    Protocol stack power optimization for wireless communications devices 有权
    无线通信设备的协议栈功率优化

    公开(公告)号：US08645732B2

    公开(公告)日：2014-02-04

    申请号：US13013381

    申请日：2011-01-25

    Applicant: Vidyut M. Naware ,  Ketan N. Patel ,  Eugene T. Sy ,  Parvathanathan Subrahmanya

    Inventor： Vidyut M. Naware ,  Ketan N. Patel ,  Eugene T. Sy ,  Parvathanathan Subrahmanya

    IPC: G06F1/32 ,  G06F1/00

    CPC classification number: H04W52/0229 ,  H04W52/0238 ,  H04W52/0274 ,  H04W52/029 ,  H04W88/02 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/126 ,  Y02D70/23

    Abstract: User experiences on wireless devices are affected by communication, computation, and user interface capabilities. Another key performance indicator of a wireless device is its battery life. A method, algorithm and apparatus for improving the communication, computation and user interface capabilities of a mobile device is disclosed, which requires the expenditure of less energy and increases battery life. The trade-off between battery life and user experience related to the communication capability is managed by a protocol stack power optimization algorithm that optimally allocates energy resources. The power management algorithm inputs and combines measurements made at various layers of the protocol stack to selectively control a set of actions impacting energy usage. The algorithm maps from a set of measurements to a set of actions that provides the best trade-off between user experience and energy consumption.

    Abstract translation: 无线设备的用户体验受通信，计算和用户界面功能的影响。 无线设备的另一个关键性能指标是其电池寿命。 公开了一种用于改善移动设备的通信，计算和用户界面能力的方法，算法和装置，其需要较少的能量消耗并延长电池寿命。 电池寿命与通信能力相关的用户体验之间的权衡由最优分配能源的协议栈功率优化算法进行管理。 功率管理算法输入和组合在协议栈的各个层进行的测量，以选择性地控制影响能量使用的一组动作。 该算法将一组测量映射到提供用户体验和能量消耗之间最佳权衡的一组动作。

    Methods and apparatus for common channel cancellation in wireless communications
    96.
    发明授权
    Methods and apparatus for common channel cancellation in wireless communications 有权
    无线通信中公共信道消除的方法和装置

    公开(公告)号：US08565775B2

    公开(公告)日：2013-10-22

    申请号：US12146232

    申请日：2008-06-25

    Applicant: Qiang Shen ,  Nathan Yee ,  Parvathanathan Subrahmanya

    Inventor： Qiang Shen ,  Nathan Yee ,  Parvathanathan Subrahmanya

    IPC: H04W72/00 ,  H04J11/00 ,  H04B7/14 ,  H04L12/413

    CPC classification number: H04B1/7107 ,  H04B1/70735 ,  H04B1/71072 ,  H04B2201/70701

    Abstract: A mobile station that is configured to perform common channel cancellation may include a parameter estimation unit that is configured to estimate parameters for generating a common channel error. The mobile station may also include a common channel generation unit that is configured to generate the common channel error based on the parameters. The mobile station may also include an adder that is configured to subtract the common channel error from received data samples.

    Abstract translation: 被配置为执行公共信道消除的移动站可以包括被配置为估计用于生成公共信道错误的参数的参数估计单元。 移动台还可以包括公共信道生成单元，其被配置为基于参数生成公共信道错误。 移动站还可以包括被配置为从接收的数据样本中减去公共信道误差的加法器。

    CHANNEL IMPULSE RESPONSE ESTIMATION FOR WIRELESS RECEIVER
    98.
    发明申请
    CHANNEL IMPULSE RESPONSE ESTIMATION FOR WIRELESS RECEIVER 有权
    无线接收机的通道响应估计

    公开(公告)号：US20130070869A1

    公开(公告)日：2013-03-21

    申请号：US13237868

    申请日：2011-09-20

    Applicant: Mariam Motamed ,  Alexei Yurievitch Gorokhov ,  Mike L. Mccloud ,  Parvathanathan Subrahmanya

    Inventor： Mariam Motamed ,  Alexei Yurievitch Gorokhov ,  Mike L. Mccloud ,  Parvathanathan Subrahmanya

    IPC: H04L27/06 ,  H04L27/00

    CPC classification number: H04L5/0051 ,  H04L25/0212 ,  H04L25/0224

    Abstract: Estimating a channel impulse response (CIR) for a wireless transmission, for example a multimedia broadcast multicast services single frequency network (MBSFN) transmission, may be performed by a receiver of an wireless subframe, without requiring operational memory in excess of what is needed for CIR estimation of unicast signaling, while providing enhanced delay spread coverage. The wireless subframe may be a MBSFN subframe. The receiver may form an aggregate vector of pilot tones extracted from an OFDM reference symbol of an wireless subframe. The receiver may subsample the aggregate vector to obtain a plurality of sub-vectors each comprising a distinct subsampling phase. The receiver may process the plurality of sub-vectors using an inverse fast Fourier transform to obtain time domain representations of each of the sub-vectors. The receiver may combine the time domain representations in various ways to obtain a CIR estimate for the wireless subframe.

    Abstract translation: 估计用于无线传输的信道脉冲响应（CIR），例如多媒体广播多播服务单频网（MBSFN）传输，可以由无线子帧的接收机执行，而不需要超过所需的操作存储器 CIR估计单播信令，同时提供增强的延迟扩展覆盖。 无线子帧可以是MBSFN子帧。 接收机可以形成从无线子帧的OFDM参考符号提取的导频音的聚合向量。 接收机可以对聚合向量进行子采样以获得每个包括不同子采样相位的多个子向量。 接收机可以使用快速傅里叶逆变换处理多个子向量，以获得每个子向量的时域表示。 接收机可以以各种方式组合时域表示以获得无线子帧的CIR估计。

    Apparatus, system, and method for managing transmission power in a wireless communication system
    99.
    发明授权
    Apparatus, system, and method for managing transmission power in a wireless communication system 有权
    用于在无线通信系统中管理传输功率的装置，系统和方法

    公开(公告)号：US08359060B2

    公开(公告)日：2013-01-22

    申请号：US13036877

    申请日：2011-02-28

    Applicant: Erumusele O. Odigie ,  Nitin Kasturi ,  Parvathanathan Subrahmanya

    Inventor： Erumusele O. Odigie ,  Nitin Kasturi ,  Parvathanathan Subrahmanya

    IPC: H04B7/00

    CPC classification number: H04W52/221 ,  H04W52/223 ,  H04W52/267 ,  H04W52/346 ,  H04W52/367 ,  Y02D70/124

    Abstract: An apparatus, system, and method efficiently manage transmission power in a user equipment (UE) device by maintaining and applying an authorized power level to determine a transmission power level after a power limited transmission and before a new power control command has been received. The UE device maintains the authorized power level by monitoring and adjusting the authorized power level based on received power control commands. After a power limited transmission where the maximum power level is less than the authorized power level, the UE device determines the transmission power level for the next transmission based on the authorized power level. Accordingly, after the power limiting situation has ceased, the UE device transmits at the optimum power level eliminating the inefficiencies of transmitting at a lower than authorized power before the next power control command is received.

    Abstract translation: 一种装置，系统和方法通过维持和应用授权功率电平来有效地管理用户设备（UE）设备中的发射功率，以确定在功率限制传输之后和在接收到新的功率控制命令之前的发射功率电平。 UE设备通过基于接收到的功率控制命令监视和调整授权功率电平来维持授权功率电平。 在最大功率电平小于授权功率电平的功率限制传输之后，UE设备基于授权功率电平确定用于下一次传输的传输功率电平。 因此，在功率限制情况已经停止之后，UE接收到下一个功率控制命令之前，以最佳功率电平发送消除低于授权功率的低效发送的低效率。

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