公开(公告)号：US20150131750A1

公开(公告)日：2015-05-14

申请号：US14126037

申请日：2013-09-05

Applicant: Feng Xue ,  Jong-Kae Fwu ,  Masoud Sajadieh ,  Qinghua Li

Inventor： Feng Xue ,  Jong-Kae Fwu ,  Masoud Sajadieh ,  Qinghua Li

IPC: H04B7/04 ,  H04W24/08 ,  H04B7/06

CPC classification number: H04B7/0482 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0695 ,  H04W24/08

Abstract: Technology to adaptively sectorize a spatial region for parallel multi-user transmissions is disclosed. In an example, a node (e.g., evolved Node B (eNB)) can include computer circuitry configured to: Generate a set of precoding matrices for a set of beam cones in the spatial region; and generate a beam cone for multi-user beamforming transmissions using system information for the beam cone. A precoding matrix in the set of precoding matrices can be used for each beam cone, and each beam cone can cover a beam cone spatial region that differs from another beam cone spatial region of another beam cone in the spatial region. Each beam cone can include system information that differs from the system information of the other beam cones in the spatial region.

Abstract translation: 公开了用于对用于并行多用户传输的空间区域进行自适应划分的技术。 在一个示例中，节点（例如，演进节点B（eNB））可以包括被配置为：为空间区域中的一组波束锥生成一组预编码矩阵的计算机电路; 并使用束锥的系统信息生成用于多用户波束成形传输的波束锥。 预编码矩阵集合中的预编码矩阵可用于每个波束锥，并且每个波束锥可以覆盖不同于空间区域中另一波束锥的另一波束锥空间区域的波束锥空间区域。 每个束锥可以包括与空间区域中的其他束锥的系统信息不同的系统信息。

公开(公告)号：US20090002086A1

公开(公告)日：2009-01-01

申请号：US11823856

申请日：2007-06-28

Applicant: Hasnain Lakdawala ,  Ofir Degani ,  Ashoke Ravi ,  Masoud Sajadieh ,  Soumyanath Krishnamurthy

Inventor： Hasnain Lakdawala ,  Ofir Degani ,  Ashoke Ravi ,  Masoud Sajadieh ,  Soumyanath Krishnamurthy

IPC: H03L1/00

CPC classification number: H03L1/026 ,  H03L7/1974

Abstract: Film bulk acoustic resonators (FBARS) have resonant frequencies that vary with manufacturing variations, but tend to be matched when in proximity on an integrated circuit die. FBAR resonant frequency is determined using a fractional-N synthesizer and comparing phase/frequency of an output signal from the fractional-N synthesizer to a reference. The reference may be derived from a low frequency crystal oscillator, an external signal source, or a communications signal.

公开(公告)号：US08804856B2

公开(公告)日：2014-08-12

申请号：US12910129

申请日：2010-10-22

Applicant: Marian K. Verhelst ,  Hasnain Lakdawala ,  Krishnamurthy Soumyanath ,  Masoud Sajadieh

Inventor： Marian K. Verhelst ,  Hasnain Lakdawala ,  Krishnamurthy Soumyanath ,  Masoud Sajadieh

IPC: H04L27/00

CPC classification number: H04B17/16

Abstract: Briefly, in accordance with one or more embodiments, a radio device comprises an analog front end comprising a radio to transmit and/or receive radio-frequency signals, and a programmable engine coupled to the analog front end. The programmable engine is capable of being programmed to perform one or more tests on the analog front end and includes a reconfigurable data path reconfigurable by the programmable engine to perform one or more tests on the analog front end.

Abstract translation: 简而言之，根据一个或多个实施例，无线电设备包括模拟前端，其包括用于发射和/或接收射频信号的无线电装置，以及耦合到模拟前端的可编程引擎。 可编程引擎能够被编程为对模拟前端执行一个或多个测试，并且包括由可编程引擎重新配置以在模拟前端执行一个或多个测试的可重构数据路径。

公开(公告)号：US20090086866A1

公开(公告)日：2009-04-02

申请号：US11865735

申请日：2007-10-02

Applicant: Surendra Boppana ,  Masoud Sajadieh ,  Hossein Alavi

Inventor： Surendra Boppana ,  Masoud Sajadieh ,  Hossein Alavi

IPC: H04B1/10

CPC classification number: H04L27/2647 ,  H04B1/123

Abstract: Device, system, and method of flicker noise mitigation. For example, an apparatus includes a digital adaptive filter to mitigate flicker noise from a received Orthogonal Frequency-Division Multiplexing (OFDM) signal, wherein the digital adaptive filter includes: a prediction filter to estimate a value of the flicker noise based on linear combination of past low-pass filtered signal samples; a trainer sub-circuit to modify a coefficient of the prediction filter based on a difference between: a known incoming signal filtered by the prediction filter in a training stage, and a locally-generated reference copy of the known signal; a first path including a first pair of analysis-synthesis filters; and a second, parallel, path including a second pair of analysis-synthesis filters and further including the prediction filter.

Abstract translation: 闪烁噪声抑制的装置，系统和方法。 例如，一种装置包括数字自适应滤波器，以从接收到的正交频分复用（OFDM）信号中减轻闪烁噪声，其中数字自适应滤波器包括：预测滤波器，用于基于线性组合的线性组合来估计闪烁噪声的值 过去的低通滤波信号样本; 基于在训练阶段由预测滤波器滤波的已知输入信号和已知信号的本地生成的参考副本之间的差异来修改预测滤波器的系数的训练器子电路; 包括第一对分析合成滤波器的第一路径; 以及包括第二对分析合成滤波器并且还包括所述预测滤波器的第二并行路径。

公开(公告)号：US20090034603A1

公开(公告)日：2009-02-05

申请号：US12176646

申请日：2008-07-21

Applicant: Hasnain Lakdawala ,  Ashoke Ravi ,  Ofir Degani ,  Itshak Hod ,  Yorgos Palaskas ,  Masoud Sajadieh

Inventor： Hasnain Lakdawala ,  Ashoke Ravi ,  Ofir Degani ,  Itshak Hod ,  Yorgos Palaskas ,  Masoud Sajadieh

IPC: H03K7/08

CPC classification number: H03K7/10 ,  H03F3/2178 ,  H04B1/0483 ,  H04L25/4902

Abstract: Briefly, in accordance with one or more embodiments, in a pulse position and pulse position modulation out-phasing transmitter, the range of the phase angle, theta, may be divided into more than one range to drive a first power amplifier with a first range of theta, and to drive a second power amplifier with a second range of theta. In one or more embodiments, a main power amplifier is driven with a first phase range having a higher probability density function, and an overload power amplifier is driven with a first phase range having a lower probability density function. In one or more embodiments, a full adder may be used to combine the two phases wherein the sum signal is used to drive the main power amplifier, and the carry signal is used to drive the overload power amplifier.

Abstract translation: 简而言之，根据一个或多个实施例，在脉冲位置和脉冲位置调制输出相位变送器中，相位角θ的范围可被划分成多于一个范围以驱动具有第一范围的第一功率放大器 的θ，并驱动具有θ的第二范围的第二功率放大器。 在一个或多个实施例中，主功率放大器由具有较高概率密度函数的第一相位范围驱动，而过载功率放大器由具有较低概率密度函数的第一相位范围驱动。 在一个或多个实施例中，全加器可以用于组合两相，其中求和信号用于驱动主功率放大器，并且进位信号用于驱动过载功率放大器。

公开(公告)号：US06928046B1

公开(公告)日：2005-08-09

申请号：US09304830

申请日：1999-05-05

Applicant: Masoud Sajadieh ,  Mohsen Sarraf ,  Mohammad Hossein Zarrabizadeh

Inventor： Masoud Sajadieh ,  Mohsen Sarraf ,  Mohammad Hossein Zarrabizadeh

IPC: H03K9/00 ,  H04H20/88 ,  H04J11/00 ,  H04L27/26 ,  H04L27/28 ,  H04H5/00

CPC classification number: H04L27/2656 ,  H04L27/2678

Abstract: Frame synchronization of a received OFDM signal (such as that used in a hybrid FM DAB system) is provided by filtering out significant outer frequency portions of the digital channels, and then using cyclic extension and correlation of the cyclically extended bits (or samples). The received OFDM signal is passed through a bandpass filter to remove outer digital subcarriers (i.e., those farthest from a center frequency) from a received OFDM signal before correlating to locate the OFDM frame boundaries. By filtering out digital subcarriers within each of the digital channels, particularly those closest to adjacent channels and thus most likely to be interfered with by an adjacent first channel OFDM (or FM) signal, correlation between cyclically extended bit (or sample) patterns and thus frame synchronization of OFDM signals can be improved significantly.

Abstract translation: 通过滤出数字信道的重要外频部分，然后使用循环扩展比特（或采样）的循环扩展和相关来提供接收的OFDM信号（例如在混合FM DAB系统中使用的OFDM信号）的帧同步。 所接收的OFDM信号通过带通滤波器以在相关之前从接收的OFDM信号中去除外部数字子载波（即，离中心频率最远的那些），以定位OFDM帧边界。 通过滤除每个数字信道内的数字子载波，特别是那些最接近相邻信道的数字子载波，从而最可能被相邻第一信道OFDM（或FM）信号干扰，循环扩展位（或采样）模式之间的相关性因此 可以显着提高OFDM信号的帧同步。

公开(公告)号：US09225404B2

公开(公告)日：2015-12-29

申请号：US14125258

申请日：2013-06-26

Applicant: Hooman Shirani-Mehr ,  Masoud Sajadieh

Inventor： Hooman Shirani-Mehr ,  Masoud Sajadieh

IPC: H04B7/02 ,  H04B7/04 ,  H04L5/00 ,  H04B1/56 ,  H04W56/00 ,  H04W76/02 ,  H04W36/30 ,  H04W24/00 ,  H04W36/26 ,  H04W48/18 ,  H04W24/10 ,  H04W36/00 ,  H04W36/22 ,  H04W48/16 ,  H04W36/08 ,  H04W48/12 ,  H04W88/08

CPC classification number: H04W8/082 ,  H04B1/56 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0619 ,  H04B7/063 ,  H04B7/0695 ,  H04B7/088 ,  H04L1/1864 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0057 ,  H04L5/0085 ,  H04L25/0206 ,  H04L25/03305 ,  H04L47/803 ,  H04L65/4092 ,  H04L65/601 ,  H04L65/602 ,  H04L65/604 ,  H04L65/607 ,  H04L65/608 ,  H04L65/80 ,  H04L2025/03426 ,  H04M1/72572 ,  H04N21/2402 ,  H04N21/8456 ,  H04N21/8543 ,  H04W4/021 ,  H04W8/02 ,  H04W8/06 ,  H04W24/00 ,  H04W24/02 ,  H04W28/02 ,  H04W28/0226 ,  H04W28/0289 ,  H04W28/085 ,  H04W28/20 ,  H04W36/0005 ,  H04W36/0011 ,  H04W36/0022 ,  H04W36/08 ,  H04W36/22 ,  H04W36/26 ,  H04W36/30 ,  H04W48/06 ,  H04W48/12 ,  H04W48/16 ,  H04W48/18 ,  H04W56/001 ,  H04W72/0446 ,  H04W72/046 ,  H04W72/082 ,  H04W76/15 ,  H04W84/042 ,  H04W84/045 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  H04W88/10 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/444

Abstract: Technology to provide hybrid beamforming feedback is disclosed. In an example, a user equipment (UE) can include computer circuitry configured to: Receive a reference signal (RS) from a node; calculate an optimal channel direction from the RS; calculate an optimal signal-to-interference-plus-noise ratio (SINR) for the optimal channel direction, where the optimal SINR is conditionally calculated with an intra-cell interference component or calculated without the intra-cell interference component based on a feedback configuration; and transmit the optimal channel direction and the optimal SINR to the node.

Abstract translation: 公开了提供混合波束成形反馈的技术。 在一个示例中，用户设备（UE）可以包括被配置为：从节点接收参考信号（RS）的计算机电路; 从RS计算最佳信道方向; 计算最佳信道方向的最佳信号与干扰加噪声比（SINR），其中最佳SINR有条件地用小区内干扰分量计算，或者基于反馈配置在没有小区内干扰分量的情况下计算 ; 并向节点发送最优信道方向和最佳SINR。

公开(公告)号：US20150003325A1

公开(公告)日：2015-01-01

申请号：US14133215

申请日：2013-12-18

Applicant: Masoud Sajadieh ,  Hooman Shirani-Mehr

Inventor： Masoud Sajadieh ,  Hooman Shirani-Mehr

IPC: H04B7/06 ,  H04B7/04

CPC classification number: H04W72/0446 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0626 ,  H04J11/005 ,  H04L5/1469 ,  H04L12/18 ,  H04L25/021 ,  H04L25/0242 ,  H04L25/03891 ,  H04W8/005 ,  H04W16/14 ,  H04W24/10 ,  H04W36/02 ,  H04W48/12 ,  H04W48/16 ,  H04W56/0005 ,  H04W68/04 ,  H04W72/02 ,  H04W72/0406 ,  H04W72/042 ,  H04W74/004 ,  H04W74/006 ,  H04W74/0816 ,  H04W76/10 ,  H04W76/19 ,  H04W76/30 ,  H04W84/045 ,  H04W84/18 ,  H04W88/02 ,  H04W88/06

Abstract: Embodiments of system, device, and method configurations for implementing a progressive channel state indicator (CSI) evaluation are disclosed herein. In one example, techniques for increasing the precision of channel feedback information by detecting a best beam index in a progressively scanning grid of beams is deployed in a Long Term Evolution (LTE) network. The use of a progressive CSI technique may be used to improve the robustness of beamforming in network configurations deploying multi-user multiple input multiple output (MU-MIMO) transmission modes.

Abstract translation: 本文公开了用于实现逐行信道状态指示符（CSI）评估的系统，设备和方法配置的实施例。 在一个示例中，在长期演进（LTE）网络中部署用于通过在逐行扫描网格中检测最佳波束索引来提高信道反馈信息的精度的技术。 可以使用逐行CSI技术来提高部署多用户多输入多输出（MU-MIMO）传输模式的网络配置中波束成形的鲁棒性。

公开(公告)号：US08736384B2

公开(公告)日：2014-05-27

申请号：US12769806

申请日：2010-04-29

Applicant: Ashoke Ravi ,  Ofir Degani ,  Hasnain Lakdawala ,  Masoud Sajadieh

Inventor： Ashoke Ravi ,  Ofir Degani ,  Hasnain Lakdawala ,  Masoud Sajadieh

IPC: H03L7/095

CPC classification number: H03L7/1978

Abstract: In some embodiments, provided are calibration techniques for measuring mismatches between TDL delay stage elements, and in some cases, then compensating for the mismatches to minimize performance degradation.

Abstract translation: 在一些实施例中，提供了用于测量TDL延迟级元件之间的不匹配的校准技术，并且在一些情况下，然后补偿不匹配以最小化性能下降。

公开(公告)号：US20140086159A1

公开(公告)日：2014-03-27

申请号：US13629550

申请日：2012-09-27

Applicant: Masoud Sajadieh ,  Andreas Schmidt

Inventor： Masoud Sajadieh ,  Andreas Schmidt

IPC: H04W72/08 ,  H04W72/10

CPC classification number: H04W72/12 ,  H04W72/10

Abstract: A multiple-persona system and method is described, wherein a UE (user equipment) is able to connect to two different networks simultaneously. In a multiple-persona system, one of the personas may have a higher significance than the other persona. For example, a connection to a work network may be prioritized over connection to a home network. In such a situation, it may be desirable to have applications running on the work network have priority over applications running on the home network. Such a method and system may operate independently of the eNodeB or have the eNodeB actively controlling the priority among the personas. The scheduler in either the eNodeB or the UE may contain anew input for the significance of the persona. The significance of the persona is taken into account when sending data to and from the UE.

Abstract translation: 描述了一种多人物系统和方法，其中UE（用户设备）能够同时连接到两个不同的网络。 在多角色系统中，角色之一可能具有比其他角色更高的意义。 例如，可以通过连接到家庭网络来优先考虑到工作网络的连接。 在这种情况下，可能期望在工作网络上运行的应用程序具有优先于在家庭网络上运行的应用程序。 这样的方法和系统可以独立于eNodeB运行，或者使得eNodeB主动地控制角色之间的优先级。 eNodeB或UE中的调度器可以包含用于角色的重要性的新输入。 当向UE发送数据时，考虑到角色的意义。