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    Apparatus and method of multiple antenna receiver combining of high data rate wideband packetized wireless communication signals
    6.
    发明授权
    Apparatus and method of multiple antenna receiver combining of high data rate wideband packetized wireless communication signals 有权
    多天线接收机组合高数据率宽带分组化无线通信信号的装置和方法

    公开(公告)号：US07672220B2

    公开(公告)日：2010-03-02

    申请号：US12043694

    申请日：2008-03-06

    申请人： Ardavan Maleki Tehrani ,  Won-Joon Choi ,  Jeffrey M. Gilbert ,  Yi-Hsiu Wang

    发明人： Ardavan Maleki Tehrani ,  Won-Joon Choi ,  Jeffrey M. Gilbert ,  Yi-Hsiu Wang

    IPC分类号： H04L5/04

    CPC分类号： H04L27/2657 ,  H04B7/0845 ,  H04B7/0848 ,  H04L27/2663 ,  H04L27/2665 ,  H04L27/2675

    摘要： The present invention provides an apparatus and method of multiple antenna receiver combining of high data rate wideband packetized wireless communication signals, where the apparatus includes M receive antennas, receiving M high data rate wideband packetized wireless communication signals, where each of the signals includes N frequency bins. The apparatus, in an exemplary embodiment, includes (1) a joint timing recovery units that perform joint coarse signal timing estimation, joint frequency offset estimation, and joint fine timing estimation on each of the signals, (2) M Fast Fourier Transform units (FFTs) that each convert the digital data for each of the M signals into frequency domain information for each of the N received frequencies and that output Q pilots for each of the signals, where Q is a positive integer, and (3) a combiner that weights and combines the outputs of the M FFTs for each of the N received frequencies.

    摘要翻译： 本发明提供了一种多天线接收机组合的高数据率宽带分组化无线通信信号的装置和方法，其中该装置包括M个接收天线，接收M个高数据速率宽带分组化无线通信信号，其中每个信号包括N个频率 箱子。 在一个示例性实施例中，该装置包括（1）联合定时恢复单元，其对每个信号执行联合粗略信号定时估计，联合频率偏移估计和联合精细定时估计，（2）M个快速傅里叶变换单元 FFT），其将每个M个信号的数字数据转换为N个接收频率中的每一个的频域信息，并且为每个信号输出Q个导频，其中Q是正整数，以及（3）组合器， 对N个接收频率中的每一个进行加权并组合M FFT的输出。

    Multi-chain signal detection and gain control for automatic gain control systems
    8.
    发明授权
    Multi-chain signal detection and gain control for automatic gain control systems 有权
    用于自动增益控制系统的多链信号检测和增益控制

    公开(公告)号：US07463704B1

    公开(公告)日：2008-12-09

    申请号：US10884787

    申请日：2004-07-01

    申请人： Ardavan Maleki Tehrani ,  Xiaoru Zhang ,  Paul J. Husted ,  Jeffrey M. Gilbert

    发明人： Ardavan Maleki Tehrani ,  Xiaoru Zhang ,  Paul J. Husted ,  Jeffrey M. Gilbert

    IPC分类号： H04L27/08

    CPC分类号： H03G3/3068 ,  H03G3/3078

    摘要： A wireless local area network (WLAN) system can have multiple antennas to improve signal detection and decoding. A WLAN receiver in such a system includes multiple amplifiers that can appropriately size an incoming signal and an automatic gain control unit to process the received incoming signals. The amplifiers of a chain of the WLAN receiver, i.e. an antenna and associated receiver components, can be adjusted with computed gains. To optimize the wireless system detection and decoding, the automatic gain control unit can advantageously compute these gains for each amplifier in the WLAN receiver.

    摘要翻译： 无线局域网（WLAN）系统可以具有多个天线来改善信号检测和解码。 这种系统中的WLAN接收机包括可以适当地调整输入信号的大小的放大器和自动增益控制单元来处理接收到的输入信号。 可以利用计算的增益来调整WLAN接收器链的放大器，即天线和相关联的接收器组件。 为了优化无线系统检测和解码，自动增益控制单元可以有利地计算WLAN接收机中每个放大器的这些增益。