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    Satellite positioning system receiver utilizing broadcast doppler information
    21.
    发明申请
    Satellite positioning system receiver utilizing broadcast doppler information 有权
    卫星定位系统接收机利用广播多普勒信息

    公开(公告)号：US20050192032A1

    公开(公告)日：2005-09-01

    申请号：US11069595

    申请日：2005-02-28

    申请人： Eko Onggosanusi ,  Anand Dabak

    发明人： Eko Onggosanusi ,  Anand Dabak

    IPC分类号： G01S1/00 ,  G01S5/14 ,  G01S19/09 ,  G01S19/46 ,  H04M11/04 ,  H04Q7/20

    CPC分类号： G01S19/254

    摘要： A cellular communicating device (10). The device comprises means (221) for communicating bi-directional data to and from a cellular transceiver station along a bi-directional channel (30S). The device also comprises means (222) for receiving SPS information. The device also comprises means (223) for receiving broadcast Doppler information from a source other than the bi-directional channel and an SPS system. Lastly, the device also comprises means (24) for determining a location fix of the electronic device in response to the SPS information and the broadcast Doppler information.

    摘要翻译： 一种蜂窝通信设备（10）。 该设备包括用于沿双向通道（30S）向蜂窝收发器站传送双向数据和从蜂窝收发台传送双向数据的装置（22I 1）。 该装置还包括用于接收SPS信息的装置（22,2＆gt; 2）。 该设备还包括用于从除双向通道之外的源和SPS系统接收广播多普勒信息的装置（22,33）。 最后，设备还包括用于响应于SPS信息和广播多普勒信息来确定电子设备的定位的装置（24）。

    Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification
    22.
    发明申请
    Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification 有权
    码分多址无线系统采用闭环模式，采用九十度相位旋转和波束形成器验证

    公开(公告)号：US20050026566A1

    公开(公告)日：2005-02-03

    申请号：US10919470

    申请日：2004-08-16

    申请人： Anand Dabak ,  Eko Onggosanusi

    发明人： Anand Dabak ,  Eko Onggosanusi

    IPC分类号： H04B7/06 ,  H04B7/08 ,  H04B17/00 ,  H04B1/02 ,  H04B1/04

    CPC分类号： H04B7/0615 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0645 ,  H04B7/0654 ,  H04B7/0857 ,  H04B17/104 ,  H04B17/24

    摘要： A wireless communication system (10). The system comprises a user station (12). The user station comprises despreading circuitry (22) for receiving and despreading a plurality of slots received from at least a first transmit antenna (A121) and a second transmit antenna (A122) at a transmitting station (14). Each of the plurality of slots comprises a first channel (DPCH) comprising a first set of pilot symbols and a second channel (PCCPCH) comprising a second set of pilot symbols. The user station further comprises circuitry (50) for measuring a first channel measurement (α1,n) for each given slot in the plurality of slots from the first transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (50) for measuring a second channel measurement (α2,n) for each given slot in the plurality of slots from the second transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (52) for measuring a phase difference value (φ2(n)) for each given slot in the plurality of slots in response to the first channel measurement and the second channel measurement for the given slot and in response to a ninety degree rotation of the given slot relative to a slot which was received by the despreading circuitry immediately preceding the given slot.

    摘要翻译： 一种无线通信系统（10）。 该系统包括用户站（12）。 用户站包括解扩电路（22），用于在发射站（14）处接收和解扩从至少第一发射天线（A121）和第二发射天线（A122）接收的多个时隙。 多个时隙中的每一个包括包括第一组导频符号的第一信道（DPCH）和包括第二组导频符号的第二信道（PCCPCH）。 用户站还包括用于测量来自第一发射天线的多个时隙中的每个给定时隙的第一信道测量（α1，n）以及响应于给定时隙中的第一组导频符号的电路（50）。 用户站还包括电路（50），用于响应于给定时隙中的第一组导频符号，测量来自第二发射天线的多个时隙中的每个给定时隙的第二信道测量（α2，n）。 用户站还包括电路（52），用于响应于给定时隙的第一信道测量和第二信道测量以及响应于第二信道测量而测量多个时隙中的每个给定时隙的相位差值（phi2（n））， 给定时隙相对于由紧接在给定时隙之前的解扩电路接收的时隙的九十度旋转。

    Channel length estimation and accurate FFT window placement for high-mobility OFDM receivers in single frequency networks
    23.
    发明申请
    Channel length estimation and accurate FFT window placement for high-mobility OFDM receivers in single frequency networks 有权
    信道长度估计和单频网络中高移动性OFDM接收机的精确FFT窗口布局

    公开(公告)号：US20060222099A1

    公开(公告)日：2006-10-05

    申请号：US11389354

    申请日：2006-03-23

    申请人： Badri Varadarajan ,  Anand Dabak ,  Charles Sestok ,  Srinath Hosur

    发明人： Badri Varadarajan ,  Anand Dabak ,  Charles Sestok ,  Srinath Hosur

    IPC分类号： H04L27/06 ,  H04K1/10

    CPC分类号： H04L25/0216 ,  H04L27/2662 ,  H04L2025/03414

    摘要： A method of estimating a channel length (304) in a wireless receiver is disclosed. The receiver receives a signal (122) from a remote transmitter. The receiver selects a plurality (K) of different candidate channel lengths and determines a respective criterion value (402) of the signal for each of the plurality of different candidate channel lengths. The receiver selects a channel length (410) from the plurality of different candidate channel lengths in response to the respective criterion value (404).

    摘要翻译： 公开了一种在无线接收机中估计信道长度（304）的方法。 接收机从远程发射机接收信号（122）。 接收机选择不同候选信道长度的多个（K），并且为多个不同候选信道长度中的每一个确定信号的相应标准值（402）。 接收机响应于各自的标准值（404）从多个不同候选信道长度中选择一个信道长度（410）。

    Single-antenna interference cancellation receiver in time slot communication system
    25.
    发明授权
    Single-antenna interference cancellation receiver in time slot communication system 有权
    时隙通信系统中的单天线干扰消除接收机

    公开(公告)号：US07565111B2

    公开(公告)日：2009-07-21

    申请号：US10967605

    申请日：2004-10-18

    申请人： Eko Onggosanusi ,  Anand Dabak ,  Timothy Schmidl

    发明人： Eko Onggosanusi ,  Anand Dabak ,  Timothy Schmidl

    IPC分类号： H04B1/00

    CPC分类号： H04L25/03299 ,  H04L25/0226 ,  H04L25/0236 ,  H04L25/025 ,  H04L25/03292 ,  H04L25/03305

    摘要： A receiver (MST) for use in a modulated communications system wherein data is communicated in a time-slotted format. The receiver comprises circuitry (22) for providing samples of a group of data from the time-slotted format and circuitry (46, 42) for determining a first set of channel estimates in response to a first set of the samples. The receiver also comprises circuitry (30) for first predicting decisions for data in the group of data in response to the first set of channel estimates and circuitry (46, 42) for determining a second set of channel estimates in response to the predicted decisions. Lastly, the circuitry for predicting is further for second predicting decisions for data in the group of data in response to the second set of channel estimates.

    摘要翻译： 一种用于调制通信系统的接收机（MST），其中以时隙格式传送数据。 接收机包括用于从时隙格式提供一组数据的样本的电路（22）和用于响应于第一组样本确定第一组信道估计的电路（46,42）。 接收机还包括电路（30），用于响应于第一组信道估计和电路（46,42）首先预测数据组中的数据的决定，以响应于预测的决定来确定第二组信道估计。 最后，用于预测的电路还用于响应于第二组信道估计来第二预测数据组中的数据的决定。

    FEEDBACK AND SCHEDULING SCHEMES FOR A COMMUNICATIONS SYSTEM
    28.
    发明申请
    FEEDBACK AND SCHEDULING SCHEMES FOR A COMMUNICATIONS SYSTEM 有权
    通信系统的反馈和调度方案

    公开(公告)号：US20060233272A1

    公开(公告)日：2006-10-19

    申请号：US11379003

    申请日：2006-04-17

    申请人： Vasanthan Raghavan ,  Eko Onggosanusi ,  Anand Dabak

    发明人： Vasanthan Raghavan ,  Eko Onggosanusi ,  Anand Dabak

    IPC分类号： H04K1/10

    CPC分类号： H04L27/2608 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0026

    摘要： The present invention provides a transmitter. In one embodiment, the transmitter includes a coefficient circuit configured to generate coefficients of a set of basis waveforms that represent channel quality metrics and a transmit circuit that transmits the coefficients. The present invention also provides a receiver. In one embodiment, the receiver includes a receive circuit configured to receive coefficients of a set of basis waveforms that represent channel quality metrics and a reconstruction circuit configured to reconstruct the channel quality metrics from the coefficients.

    摘要翻译： 本发明提供一种发射机。 在一个实施例中，发射机包括被配置为生成表示信道质量度量的一组基本波形的系数的系数电路和发射系数的发射电路。 本发明还提供一种接收机。 在一个实施例中，接收机包括被配置为接收表示信道质量度量的一组基本波形的系数的接收电路，以及被配置为从系数重建信道质量度量的重构电路。

    Wireless precoding methods
    29.
    发明申请
    Wireless precoding methods 有权
    无线预编码方法

    公开(公告)号：US20060029157A1

    公开(公告)日：2006-02-09

    申请号：US11199629

    申请日：2005-08-09

    申请人： Anand Dabak ,  Eko Onggosanusi

    发明人： Anand Dabak ,  Eko Onggosanusi

    IPC分类号： H04L27/20

    CPC分类号： H04B7/0456 ,  H04B7/0417 ,  H04B7/0619 ,  H04L5/023 ,  H04L25/0206 ,  H04L27/2608

    摘要： Various wireless precoding systems and methods are presented. In some embodiments, a wireless transmitter comprises an antenna preceding block, a transform block, and multiple transmit antennas. The antenna preceding block receives frequency coefficients from multiple data streams and distributes the frequency coefficients across multiple transmit signals in accordance with frequency-dependent matrices. The transform block transforms the precoded frequency coefficients into multiple time domain transmit signals to be transmitted by the multiple antennas. The frequency coefficients from multiple data streams may be partitioned into tone groups, and all the frequency coefficients from a given tone group may be redistributed in accordance with a single matrix for that tone group. In some implementations, the frequency coefficients within a tone group for a given data stream may also be precoded. In some alternative embodiments, tone group preceding may be employed in a single channel system.

    摘要翻译： 提出了各种无线预编码系统和方法。 在一些实施例中，无线发射机包括先前块天线，变换块和多个发射天线。 天线先前块从多个数据流接收频率系数，并根据频率依赖矩阵在多个发射信号之间分配频率系数。 变换块将预编码的频率系数转换成由多个天线发射的多个时域发射信号。 来自多个数据流的频率系数可以被划分为音调组，并且来自给定音调组的所有频率系数可以根据该音调组的单个矩阵重新分配。 在一些实现中，给定数据流的音调组内的频率系数也可以被预编码。 在一些替代实施例中，可以在单个信道系统中采用先前的音调组。

    Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification
    30.
    发明申请
    Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification 审中-公开

    公开(公告)号：US20050025223A1

    公开(公告)日：2005-02-03

    申请号：US10919469

    申请日：2004-08-16

    申请人： Anand Dabak ,  Eko Onggosanusi

    发明人： Anand Dabak ,  Eko Onggosanusi

    IPC分类号： H04B7/06 ,  H04B7/08 ,  H04B17/00 ,  H04B7/212 ,  H04B1/707

    CPC分类号： H04B7/0615 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0645 ,  H04B7/0654 ,  H04B7/0857 ,  H04B17/104 ,  H04B17/24

    摘要： A wireless communication system (10). The system comprises a user station (12). The user station comprises despreading circuitry (22) for receiving and despreading a plurality of slots received from at least a first transmit antenna (A121) and a second transmit antenna (A122) at a transmitting station (14). Each of the plurality of slots comprises a first channel (DPCH) comprising a first set of pilot symbols and a second channel (PCCPCH) comprising a second set of pilot symbols. The user station further comprises circuitry (50) for measuring a first channel measurement (α1,n) for each given slot in the plurality of slots from the first transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (50) for measuring a second channel measurement (α2,n) for each given slot in the plurality of slots from the second transmit antenna and in response to the first set of pilot symbols in the given slot. The user station further comprises circuitry (52) for measuring a phase difference value (φ2(n)) for each given slot in the plurality of slots in response to the first channel measurement and the second channel measurement for the given slot and in response to a ninety degree rotation of the given slot relative to a slot which was received by the despreading circuitry immediately preceding the given slot.