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    Computer generated sequences for downlink and uplink signals in wireless communication systems
    91.
    发明授权
    Computer generated sequences for downlink and uplink signals in wireless communication systems 有权
    无线通信系统中下行链路和上行链路信号的计算机生成序列

    公开(公告)号：US09344314B2

    公开(公告)日：2016-05-17

    申请号：US12108448

    申请日：2008-04-23

    申请人： Anand G. Dabak ,  Eko N. Onggosanusi ,  Aris Papasakellariou

    发明人： Anand G. Dabak ,  Eko N. Onggosanusi ,  Aris Papasakellariou

    IPC分类号： H04L27/26 ,  H04J13/00 ,  H04L5/00

    CPC分类号： H04W56/001 ,  H04J13/0059 ,  H04J13/0062 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2655 ,  H04W72/0413

    摘要： The present disclosure provides a base station transmitter, a user equipment transmitter and methods of operating the base station and user equipment transmitters. In one embodiment, the base station transmitter is for use with a cellular communication system and includes a synchronization unit configured to provide a randomly-generated constant amplitude zero autocorrelation (random-CAZAC) sequence corresponding to a downlink synchronization signal. Additionally, the base station transmitter also includes a transmit unit configured to transmit the downlink synchronization signal using the random-CAZAC sequence. In another embodiment, the user equipment transmitter is for use with a cellular communication system and includes a reference signal unit configured to provide a random-CAZAC sequence for an uplink reference signal corresponding to a one resource block allocation of the user equipment. The user equipment transmitter also includes a transmit unit configured to transmit the uplink reference signal using the random-CAZAC sequence.

    摘要翻译： 本公开提供了一种基站发射机，用户设备发射机和操作基站和用户设备发射机的方法。 在一个实施例中，基站发射机用于蜂窝通信系统，并且包括配置成提供与下行链路同步信号相对应的随机生成的恒幅零自相关（random-CAZAC）序列的同步单元。 此外，基站发射机还包括被配置为使用随机CAZAC序列发送下行链路同步信号的发射单元。 在另一实施例中，用户设备发射机用于蜂窝通信系统，并且包括参考信号单元，该参考信号单元被配置为针对与用户设备的一个资源块分配对应的上行链路参考信号提供随机CAZAC序列。 用户设备发射机还包括被配置为使用随机CAZAC序列来发送上行链路参考信号的发射单元。

    MIMO hybrid-ARQ using basis hopping
    93.
    发明授权
    MIMO hybrid-ARQ using basis hopping 有权
    MIMO混合ARQ使用基跳频

    公开(公告)号：US08209575B2

    公开(公告)日：2012-06-26

    申请号：US12244660

    申请日：2008-10-02

    申请人： Eko N. Onggosanusi ,  Yan Hui ,  Anand Ganesh Dabak ,  Gibong Jeong

    发明人： Eko N. Onggosanusi ,  Yan Hui ,  Anand Ganesh Dabak ,  Gibong Jeong

    IPC分类号： H08C25/02 ,  H04L1/08

    CPC分类号： H04L1/06 ,  H04L1/1819

    摘要： A Hybrid Automatic Retransmission Request (H-ARQ) technique is provided for Multi-Input Multi-Output (MIMO) systems. The technique changes the basis (V) upon retransmission, which helps reduce the error probability upon retransmission. This basis hopping technique provides for improved performance gain without significant increase in design complexity. In one embodiment, communication device (100) includes a receiver section (114) for receiving an acknowledgment (ACK) or a non-acknowledgment (NACK) signal in response to information transmitted by the transmitter section of the communication device. If a NACK is received, a new basis is selected from a set of basis stored in a basis set unit (110). The new basis that is selected is then used by a linear transformation unit (106) in the retransmission of the information.

    摘要翻译： 为多输入多输出（MIMO）系统提供混合自动重传请求（H-ARQ）技术。 该技术在重发时改变基础（V），这有助于减少重传时的错误概率。 该基础跳频技术提供了改进的性能增益，而不会显着提高设计复杂度。 在一个实施例中，通信设备（100）包括用于响应于由通信设备的发射机部分发送的信息而接收确认（ACK）或非确认（NACK）信号的接收机部分（114）。 如果接收到NACK，则从存储在基本设置单元（110）中的一组基础中选择新的基础。 所选择的新基准然后由线性变换单元（106）在信息的重传中使用。

    Low-complexity primary synchronization sequences
    94.
    发明授权
    Low-complexity primary synchronization sequences 有权
    低复杂度主同步序列

    公开(公告)号：US08179810B2

    公开(公告)日：2012-05-15

    申请号：US12112399

    申请日：2008-04-30

    申请人： Eko N. Onggosanusi ,  Anand G. Dabak

    发明人： Eko N. Onggosanusi ,  Anand G. Dabak

    IPC分类号： H04L12/56 ,  H04J1/00

    CPC分类号： H04W56/0015 ,  H04J11/0069 ,  H04J13/0062 ,  H04J13/18 ,  H04W92/10

    摘要： Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter is for use with a base station in a in a cellular communication system and includes a scheduling unit configured to provide a primary synchronization signal selected from a group of multiple sequences, wherein at least two of the sequences have complex conjugate symmetry in the time domain. The transmitter also includes a transmit unit configured to transmit the primary synchronization signal. Additionally, the receiver includes a receive unit configured to receive a primary synchronization signal. The receiver also includes a detection unit configured to identify one of a plurality of primary synchronization signals corresponding to a communication cell location of the receiver, wherein at least two of a group of multiple sequences have complex conjugate symmetry in the time domain.

    摘要翻译： 本公开的实施例提供发射机，接收机和操作发射机和接收机的方法。 在一个实施例中，发射机用于蜂窝通信系统中的基站，并且包括调度单元，其被配置为提供从多个序列组中选择的主同步信号，其中至少两个序列具有复共轭 时域对称。 发射机还包括被配置为发送主同步信号的发射单元。 另外，接收机包括被配置为接收主同步信号的接收单元。 接收机还包括一个检测单元，被配置为识别对应于接收机的通信小区位置的多个主同步信号中的一个，其中一组多个序列中的至少两个在时域中具有复共轭对称性。

    Downlink synchronization for a cellular OFDM communication system
    95.
    发明授权
    Downlink synchronization for a cellular OFDM communication system 有权
    用于蜂窝OFDM通信系统的下行链路同步

    公开(公告)号：US08134996B2

    公开(公告)日：2012-03-13

    申请号：US11459313

    申请日：2006-07-21

    申请人： Eko N. Onggosanusi ,  Anand G. Dabak ,  Timothy M. Schmidl ,  Alan Gatherer

    发明人： Eko N. Onggosanusi ,  Anand G. Dabak ,  Timothy M. Schmidl ,  Alan Gatherer

    IPC分类号： H04J3/06

    CPC分类号： H04L27/2613 ,  H04J11/0069 ,  H04L5/0007 ,  H04L27/2657 ,  H04L27/2662

    摘要： The present invention provides a method of operating a base station transmitter. In one embodiment, the method includes providing a cellular downlink synchronization signal having primary and secondary portions, wherein the primary portion is common for all cells and the secondary portion is cell-specific and transmitting the cellular downlink synchronization signal. In another embodiment, the method includes providing a cellular downlink synchronization signal having primary and secondary portions wherein the primary portion employs a corresponding one of a plurality of different primary signals allocated to adjoining transmission cells. The method also includes further providing cell-specific information in the secondary portion and transmitting the cellular downlink synchronization signal. The present invention also provides a method of operating user equipment. The method includes receiving a cellular downlink synchronization signal having primary and secondary portions wherein the secondary portion provides cell-specific parameters and identifying and extracting the secondary portion.

    摘要翻译： 本发明提供一种操作基站发射机的方法。 在一个实施例中，该方法包括提供具有主要和次要部分的蜂窝下行链路同步信号，其中主要部分对于所有小区是公共的，并且次要部分是小区特定的，并且发送蜂窝下行链路同步信号。 在另一个实施例中，该方法包括提供具有主要和次要部分的蜂窝下行链路同步信号，其中主要部分采用分配给相邻传输小区的多个不同主信号中的相应一个信号。 该方法还包括在次级部分中进一步提供小区特定信息并发送蜂窝下行同步信号。 本发明还提供了一种操作用户设备的方法。 该方法包括接收具有主要和次要部分的蜂窝下行链路同步信号，其中辅助部分提供小区特定参数并且识别和提取次要部分。

    Low complexity design of primary synchronization sequence for OFDMA
    96.
    发明授权
    Low complexity design of primary synchronization sequence for OFDMA 有权
    OFDMA的主要同步序列的低复杂度设计

    公开(公告)号：US07948866B2

    公开(公告)日：2011-05-24

    申请号：US11835244

    申请日：2007-08-07

    申请人： Eko N. Onggosanusi ,  Anand G. Dabak

    发明人： Eko N. Onggosanusi ,  Anand G. Dabak

    IPC分类号： H04J11/00 ,  H04J3/06

    CPC分类号： H04W72/1284 ,  H04J11/0073

    摘要： The present disclosure provides a base station transmitter, a user equipment receiver and methods of operating a base station transmitter and a user equipment receiver. In one embodiment, the base station transmitter is for use with a cellular communication system and includes a scheduling unit configured to provide a primary synchronization sequence that is distinguishable from other primary synchronization sequences employed by adjacent base station transmitters located in contiguous communication cells, wherein a primary synchronization sequence structure is based on a reduced computational complexity for identification of the primary synchronization sequence in a user equipment receiver. Additionally, the base station transmitter also includes a transmit unit configured to transmit a primary synchronization signal corresponding to the primary synchronization sequence.

    摘要翻译： 本公开提供了一种基站发射机，用户设备接收机和操作基站发射机和用户设备接收机的方法。 在一个实施例中，基站发射机用于蜂窝通信系统，并且包括调度单元，其被配置为提供可与位于相邻通信小区中的相邻基站发射机所采用的其他主同步序列区分开的主同步序列，其中， 主同步序列结构基于用于在用户设备接收机中识别主同步序列的降低的计算复杂度。 此外，基站发射机还包括被配置为发送对应于主同步序列的主同步信号的发射单元。

    Multiple space time transmit diversity communication system with selected complex conjugate inputs
    97.
    发明授权
    Multiple space time transmit diversity communication system with selected complex conjugate inputs 有权
    具有选定复共轭输入的多时空发射分集通信系统

    公开(公告)号：US07929631B2

    公开(公告)日：2011-04-19

    申请号：US10131742

    申请日：2002-04-22

    申请人： Eko N. Onggosanusi ,  Anand G Dabak

    发明人： Eko N. Onggosanusi ,  Anand G Dabak

    IPC分类号： H04B7/02 ,  H04L1/02

    CPC分类号： H04B7/0634 ,  H04B7/0417 ,  H04B7/0669 ,  H04B7/0678 ,  H04B7/0697 ,  H04L1/0068 ,  H04L1/0625 ,  H04L1/0631 ,  H04L1/0668

    摘要： A transmitter comprising circuitry (14) for converting input bits to a plurality of symbols; and circuitry (24x) for forming a complex conjugate of signals corresponding to selected ones of the plurality of symbols. The selected ones of the plurality of symbols consist of signals corresponding to some and less than all the plurality of symbols. The transmitter also comprises circuitry (28x) for space time encoding both the signals corresponding to the selected ones of the plurality of symbols and signals corresponding to non-selected ones of the plurality of symbols. Lastly, the transmitter comprises a plurality of transmit antennas (TATx) coupled to transmit signals in response to the circuitry for space time encoding.

    摘要翻译： 一种发射机，包括用于将输入比特转换成多个符号的电路（14） 以及用于形成与多个符号中的选定符号对应的信号的复共轭的电路（24x）。 所述多个符号中的所选择的符号由对应于一些且小于所有多个符号的信号组成。 发射机还包括电路（28x），用于空间时间编码对应于多个符号中的选定符号的信号和对应于多个符号中的未被选择符号的信号。 最后，发射机包括响应于用于时空编码的电路而耦合到发射信号的多个发射天线（TATx）。