公开(公告)号：US08254977B2

公开(公告)日：2012-08-28

申请号：US11441651

申请日：2006-05-25

Applicant: Ivan Jesus Fernandez-Corbaton ,  Ahmad Jalali ,  Jordi de los Pinos Pont

Inventor： Ivan Jesus Fernandez-Corbaton ,  Ahmad Jalali ,  Jordi de los Pinos Pont

IPC: H04B7/00 ,  H04Q7/20

CPC classification number: H04W52/343 ,  H04W52/367

Abstract: A novel MAC algorithm is disclosed having various features for a modern CDMA interference-shared reverse link, including (a) link quality assurance, (b) individual congestion control, (c) variable data rate transition policy, and/or (d) reverse link partitioning. Link quality assurance is provided by monitoring transmission feedback information (ACK/NACK) to indirectly determine the quality of a communication link. Wireless devices are individually targeted to perform congestion control of the reverse link. Variable data transmission rates and discontinuous transmissions are achieved by individual wireless devices that autonomously adjust their transmission rate and transmit power. The reverse link can also be partitioned among the different wireless devices by individually controlling the transmit power of the wireless devices operating on the reverse link.

Abstract translation: 公开了一种新颖的MAC算法，其具有用于现代CDMA干扰共享反向链路的各种特征，包括（a）链路质量保证，（b）个体拥塞控制，（c）可变数据速率转换策略和/或（d）反向 链接分区。 通过监视传输反馈信息（ACK / NACK）来间接地确定通信链路的质量来提供链路质量保证。 无线设备被单独定向以执行反向链路的拥塞控制。 可变数据传输速率和不连续传输通过自主调整其传输速率和传输功率的各个无线设备实现。 也可以通过单独控制在反向链路上操作的无线设备的发射功率，在不同的无线设备之间对反向链路进行分区。

公开(公告)号：US20110032832A1

公开(公告)日：2011-02-10

申请号：US12535537

申请日：2009-08-04

Applicant: Ahmad Jalali ,  Leonard N. Schiff ,  William G. Ames

Inventor： Ahmad Jalali ,  Leonard N. Schiff ,  William G. Ames

IPC: H04L12/26 ,  H04H20/71 ,  H04W36/00

CPC classification number: H04N21/23406 ,  H04H20/71 ,  H04H60/91 ,  H04L47/10 ,  H04L47/14 ,  H04L47/15 ,  H04L47/2416 ,  H04L47/263 ,  H04L47/30 ,  H04L65/4076 ,  H04N21/41407 ,  H04N21/44004 ,  H04N21/6125 ,  H04N21/6131 ,  H04N21/6373 ,  H04N21/6405 ,  H04N21/6408 ,  H04W4/06 ,  H04W8/24 ,  H04W24/00 ,  H04W28/12 ,  H04W28/22 ,  Y10T70/5969 ,  Y10T70/7774

Abstract: Aspects describe utilizing the Internet capability in mobile devices/networks to deliver broadcast multimedia to a device. The broadcast can be video, audio, and so forth. Initially the broadcast multimedia is transmitted at high data rates (and in unicast mode) in order for a buffer associated with mobile device to be built to a very long buffer length. When the long buffer length is reached, the multimedia can be delivered at real-time rates. The multimedia delivered at real times rates can be unicast mode or in multicast mode. If the buffer is depleted, a mobile device that is part of a multicast group can autonomously disassociated from the group until the buffer length is restored.

Abstract translation: 方面描述了利用移动设备/网络中的互联网能力将广播多媒体传送到设备。 广播可以是视频，音频等等。 最初，以高数据速率（和单播模式）发送广播多媒体，以便将与移动设备相关联的缓冲器构建到非常长的缓冲器长度。 当达到长缓冲区长度时，多媒体可以实时传送。 以实时速率传送的多媒体可以是单播模式或组播模式。 如果缓冲区耗尽，作为组播组的一部分的移动设备可以自动地从组中解除关联，直到缓冲区长度恢复。

公开(公告)号：US20100302991A1

公开(公告)日：2010-12-02

申请号：US12749686

申请日：2010-03-30

Applicant: Ahmad Jalali ,  Harris S. Simon

Inventor： Ahmad Jalali ,  Harris S. Simon

IPC: H04W88/02 ,  H04L1/02 ,  H04B1/02

CPC classification number: H04B7/0608 ,  H04B7/061

Abstract: An apparatus and method inexpensively implements spatial diversity in a wireless terminal for use in a satellite communication system. A single transmit chain is coupled to a plurality of antennas through a switch for sequentially selecting each of the antennas during corresponding sub-frames of a data frame. Here, each sub-frame is adapted for transmission of a respective portion of an encoded information packet, encoded such that the entire information packet is recoverable from any one of the sub-frames.

Abstract translation: 一种在卫星通信系统中使用的无线终端中廉价地实现空间分集的装置和方法。 单个发射链通过开关耦合到多个天线，用于在数据帧的相应子帧期间顺序选择每个天线。 这里，每个子帧适于传输编码的信息分组的相应部分，被编码为使得整个信息分组可从任何一个子帧中恢复。

公开(公告)号：US20100074152A1

公开(公告)日：2010-03-25

申请号：US12547732

申请日：2009-08-26

Applicant: Ahmad Jalali ,  John E. Smee ,  Mark Wallace

Inventor： Ahmad Jalali ,  John E. Smee ,  Mark Wallace

IPC: H04J3/00 ,  H04L27/28

CPC classification number: H04L1/0032 ,  H04B7/0434 ,  H04B7/0626 ,  H04L1/0003 ,  H04L1/0013 ,  H04L1/0026 ,  H04L1/0034 ,  H04L1/06 ,  H04L5/0023 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0226 ,  H04L25/03343 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: Techniques to process data for transmission in a time division duplexed (TDD) communication system. In one aspect, the frequency response of a forward link is estimated at a base station based on reverse link transmissions (e.g., pilots) from a terminal Prior to a data transmission on the forward link, the base station determines a reverse transfer function based on the pilots transmitted by the terminal, “calibrates” the reverse transfer function with a calibration function to derive an estimate of a forward transfer function, and preconditions modulation symbols based on weights derived from the forward transfer function. In another aspect, the terminal estimates the “quality” of the forward link and provides this information to the base station. The base station then uses the information to properly code and modulate data prior to transmission such that the transmitted data can be received by the terminal at the desired level of performance.

Abstract translation: 在时分双工（TDD）通信系统中处理用于传输的数据的技术。 在一个方面，基于来自终端的反向链路传输（例如，导频）在基站处估计前向链路的频率响应在前向链路上的数据传输之前，基站基于 由终端发送的导频，使用校准功能“校准”反向传递函数，以导出正向传递函数的估计，以及基于从前向传递函数导出的权重的前提条件调制符号。 在另一方面，终端估计前向链路的“质量”，并将该信息提供给基站。 然后，基站使用该信息在发送之前对数据进行适当的编码和调制，使得所发送的数据能够以期望的性能水平由终端接收。

公开(公告)号：US20100008453A1

公开(公告)日：2010-01-14

申请号：US12567181

申请日：2009-09-25

Applicant: Ivan Jesus Fernandez-Corbaton ,  Ahmad Jalali ,  Ernest T. Ozaki ,  Harris Smith Simon ,  Sherman A. Gregory

Inventor： Ivan Jesus Fernandez-Corbaton ,  Ahmad Jalali ,  Ernest T. Ozaki ,  Harris Smith Simon ,  Sherman A. Gregory

IPC: H04L27/00 ,  H04B7/08

CPC classification number: H01Q25/00

Abstract: At least one feature provides a way to perform point-to-multipoint transmissions using adaptive or directional antennas while reducing antenna pattern distortion. Generally, rather than transmitting the same waveform to two or more receivers, an information-bearing signal is transformed into different decorrelated waveforms and each decorrelated waveform is transmitted to a different receiver. In one implementation, an information-bearing signal is transformed into two decorrelated signals such that their crosscorrelation, or autocorrelation of the information-bearing signal, is zero or very small. Such decorrelation may be achieved by sending a first signal to a first receiver while sending a second signal, having a radio frequency spectrum that is the spectrally inverted version of the first signal, to a second receiver. In another implementation, a first signal is transmitted to a first receiver and is also transmitted to a second receiver with a time delay.

Abstract translation: 至少一个特征提供了使用自适应或定向天线执行点对多点传输的方式，同时减少天线模式失真。 通常，不是将相同的波形发送到两个或更多个接收机，而是将信息承载信号变换成不同的去相关波形，并将每个去相关的波形发送到不同的接收机。 在一个实现中，信息承载信号被变换成两个去相关信号，使得其信息载运信号的互相关或自相关为零或非常小。 这种去相关可以通过向第一接收机发送第一信号来实现，同时向第二接收机发送具有作为第一信号的频谱反转版本的射频频谱的第二信号。 在另一实现中，第一信号被发送到第一接收机，并且还以时间延迟被发送到第二接收机。

公开(公告)号：US07493143B2

公开(公告)日：2009-02-17

申请号：US09850520

申请日：2001-05-07

Applicant: Ahmad Jalali

Inventor： Ahmad Jalali

IPC: H04M1/00

CPC classification number: H04W72/082 ,  H04B7/0491 ,  H04B7/10

Abstract: According to a disclosed embodiment, a first plurality of pilot signals of a first polarization is received and ranked. Subsequently, a second plurality of pilot signals of a second polarization is received and ranked. Following, a pilot signal from the first and second pluralities of pilot signals is selected based on a signal quality measurement such as a signal to interference ratio. Moreover, a system can be constructed comprising antennas configured to receive pilot signals of a first and a second polarization. The system further comprises a receiver configured to demodulate the pilot signals and a CPU configured to rank the pilot signals and to select a pilot signal based on a signal quality measurement. Communication quality is improved by communicating with the base transceiver station transmitting the pilot signal providing the highest signal quality measurement.

公开(公告)号：US20080160992A1

公开(公告)日：2008-07-03

申请号：US11771927

申请日：2007-06-29

Applicant: Ahmad Jalali

Inventor： Ahmad Jalali

IPC: H04Q7/20

CPC classification number: H04B7/18534 ,  H04B7/0808 ,  H04B7/0814

Abstract: A wireless communication device (WCD) used as a satellite telephone is provided with multiple antennas for communicating with its satellites. If signal quality is determined to be poor, then an evaluation is made as to whether switching antennas will result in an improvement in the communication link between the WCD and the satellite.

Abstract translation: 用作卫星电话的无线通信设备（WCD）设置有用于与其卫星进行通信的多个天线。 如果确定信号质量差，则进行关于切换天线是否将导致WCD与卫星之间的通信链路的改善的评估。

公开(公告)号：US20080122706A1

公开(公告)日：2008-05-29

申请号：US11739887

申请日：2007-04-25

Applicant: Ahmad Jalali

Inventor： Ahmad Jalali

IPC: H01Q1/28 ,  G01R29/08

CPC classification number: H04B7/18504

Abstract: Aeronautical broadband communication is enhanced by providing an apparatus having a first antenna configured to communicate using a signal orientation corresponding to a first polarization, and a second antenna configured to communicate using a signal orientation corresponding to a second polarization, where the second polarization has at least one characteristic difference from the first polarization. Additional antennas may be used, where multiple antennas share one polarization, and multiple other antennas share a different polarization, and signals from like-polarized antennas are combined for beam-formation.

Abstract translation: 通过提供具有第一天线的装置来增强航空宽带通信，所述第一天线被配置为使用与第一极化相对应的信号方向进行通信，以及第二天线，被配置为使用与第二极化对应的信号取向进行通信，其中第二极化具有至少 与第一极化有一个特征差异。 可以使用附加的天线，其中多个天线共享一个极化，并且多个其它天线共享不同的极化，并且组合来自相同极化天线的信号用于波束形成。

公开(公告)号：US07362268B2

公开(公告)日：2008-04-22

申请号：US11165281

申请日：2005-06-22

Applicant: Michael James Wengler ,  Ahmad Jalali

Inventor： Michael James Wengler ,  Ahmad Jalali

IPC: G01S3/16

CPC classification number: G01S19/21 ,  G01S5/0215 ,  G01S19/36 ,  G01S2013/466 ,  H04B7/0854

Abstract: A method for detecting a plurality of navigation beacon signals by using either two antennas or a synthetic aperture antenna for receiving a plurality of distinct measurements, and combining the plurality of distinct measurements using a plurality of antenna weight components to form an interference cancellation beam. In one embodiment, the plurality of antenna weight components is determined by eigenvalue processing. In another embodiment, the plurality of antenna weight components is determined by simplified processing. In another aspect, a single antenna is used for receiving an originally received measurement. A copy of the originally received measurement is made and processed to achieve the proper time delay to emulate spatial diversity. The originally received measurement and the processed copy are combined to form an interference cancellation beam.

Abstract translation: 一种用于通过使用两个天线或合成孔径天线来接收多个不同测量来检测多个导航信标信号的方法，以及使用多个天线权重分量组合所述多个不同测量以形成干扰消除波束。 在一个实施例中，多个天线权重分量由特征值处理确定。 在另一个实施例中，通过简化的处理来确定多个天线权重分量。 在另一方面，单个天线用于接收原始接收的测量。 进行原始接收的测量的副本并进行处理以实现适当的时间延迟来模拟空间分集。 原始接收的测量和处理的拷贝被组合以形成干扰消除波束。

公开(公告)号：US07349481B2

公开(公告)日：2008-03-25

申请号：US10356425

申请日：2003-01-30

Applicant: Jack Steentra ,  Ahmad Jalali

Inventor： Jack Steentra ,  Ahmad Jalali

IPC: H04K1/00

CPC classification number: H04L27/2602 ,  H04L27/2626 ,  H04L27/2647

Abstract: An apparatus and method for communication using sound waves is disclosed. More particularly, orthogonal frequency division multiplexing scheme is used to transmit and receive digital data on sound waves. In one embodiment, the sound waves are used to exchange information. In another aspect, the sound waves are used to authenticate an individual or device.

Abstract translation: 公开了一种使用声波进行通信的装置和方法。 更具体地，正交频分复用方案用于在声波上发送和接收数字数据。 在一个实施例中，声波用于交换信息。 在另一方面，声波用于认证个人或设备。