Systems and methods providing frequency-domain automatic gain control (AGC)
    12.
    发明授权
    Systems and methods providing frequency-domain automatic gain control (AGC) 失效
    提供频域自动增益控制(AGC)的系统和方法

    公开(公告)号:US08477887B2

    公开(公告)日:2013-07-02

    申请号:US12971839

    申请日:2010-12-17

    IPC分类号: H04L27/08

    CPC分类号: H03G3/3078

    摘要: A method for Automatic Gain Control (AGC) in a receiver is performed by a circuit having an inner loop and an outer loop. The method includes performing an outer loop energy detection, mitigating interference using the outer loop energy detection, and performing a frequency domain energy measurement in the inner loop. The method also includes adjusting a digital gain component in the inner loop and an analog gain component in the outer loop in response to the frequency domain energy measurement.

    摘要翻译: 接收机中的自动增益控制(AGC)的方法由具有内环和外环的电路执行。 该方法包括执行外环能量检测,使用外环能量检测来减轻干扰,以及在内循环中执行频域能量测量。 该方法还包括响应于频域能量测量调整内环中的数字增益分量和外环中的模拟增益分量。

    COHERENT INITIAL ACQUISITION
    13.
    发明申请
    COHERENT INITIAL ACQUISITION 有权
    相关的初步收购

    公开(公告)号:US20080220723A1

    公开(公告)日:2008-09-11

    申请号:US11860505

    申请日:2007-09-24

    IPC分类号: H04B7/00

    摘要: An acquisition module includes a coherent correlator configured to receive a transmission having a pilot signal and correlate the received transmission with a local copy of the pilot signal to produce a first output, a delayed correlator configured to delay the first output and correlate the first output with the delayed first output to produce a second output, and a detector configured to detect the pilot signal in the transmission based on the second output.

    摘要翻译: 获取模块包括相干相关器,其被配置为接收具有导频信号的传输并将接收到的传输与导频信号的本地副本相关联以产生第一输出,延迟相关器被配置为延迟第一输出并将第一输出与 延迟的第一输出以产生第二输出;以及检测器,被配置为基于所述第二输出来检测所述传输中的导频信号。

    Traffic-to-pilot ratio estimation for MIMO-OFDM system
    14.
    发明授权
    Traffic-to-pilot ratio estimation for MIMO-OFDM system 失效
    MIMO-OFDM系统的业务导频比估计

    公开(公告)号:US08306165B2

    公开(公告)日:2012-11-06

    申请号:US12768305

    申请日:2010-04-27

    IPC分类号: H03D1/04

    CPC分类号: H04L27/2647 H04B7/0434

    摘要: A method for estimating a traffic-to-pilot ratio (TPR) for a received signal is disclosed. The received signal is despatialized to obtain a despatialized received signal. A channel matrix is despatialized to obtain a despatialized channel matrix. The despatialized received signal is whitened to obtain a pre-whitened despatialized received signal. The despatialized channel matrix is whitened to obtain a pre-whitened despatialized channel matrix. The estimated TPR for the received signal is determined using the pre-whitened despatialized received signal and one or more pre-whitened despatialized channel estimation coefficients.

    摘要翻译: 公开了一种用于估计接收信号的业务导频比(TPR)的方法。 接收到的信号被去偏移以获得接收信号。 信道矩阵被去空间化以获得despatialized信道矩阵。 接收到的接收信号被白化,以获得预白化的despatialized接收信号。 将despatialized信道矩阵变白以获得预漂白的despatialized信道矩阵。 接收信号的估计TPR是使用预白化偏移接收信号和一个或多个预白化偏移信道估计系数来确定的。

    TRAFFIC-TO-PILOT RATIO ESTIMATION FOR MIMO-OFDM SYSTEM
    15.
    发明申请
    TRAFFIC-TO-PILOT RATIO ESTIMATION FOR MIMO-OFDM SYSTEM 失效
    MIMO-OFDM系统的交通对导频比估计

    公开(公告)号:US20100278290A1

    公开(公告)日:2010-11-04

    申请号:US12768305

    申请日:2010-04-27

    IPC分类号: H04B1/10

    CPC分类号: H04L27/2647 H04B7/0434

    摘要: A method for estimating a traffic-to-pilot ratio (TPR) for a received signal is disclosed. The received signal is despatialized to obtain a despatialized received signal. A channel matrix is despatialized to obtain a despatialized channel matrix. The despatialized received signal is whitened to obtain a pre-whitened despatialized received signal. The despatialized channel matrix is whitened to obtain a pre-whitened despatialized channel matrix. The estimated TPR for the received signal is determined using the pre-whitened despatialized received signal and one or more pre-whitened despatialized channel estimation coefficients.

    摘要翻译: 公开了一种用于估计接收信号的业务导频比(TPR)的方法。 接收到的信号被去偏移以获得接收信号。 信道矩阵被去空间化以获得despatialized信道矩阵。 接收到的接收信号被白化,以获得预白化的despatialized接收信号。 将despatialized信道矩阵变白以获得预漂白的despatialized信道矩阵。 接收信号的估计TPR是使用预白化去偏移接收信号和一个或多个预白化偏移信道估计系数来确定的。

    Coherent initial acquisition
    17.
    发明授权
    Coherent initial acquisition 有权
    相干初始获取

    公开(公告)号:US08325856B2

    公开(公告)日:2012-12-04

    申请号:US11860505

    申请日:2007-09-24

    IPC分类号: H04L27/06

    摘要: An acquisition module includes a coherent correlator configured to receive a transmission having a pilot signal and correlate the received transmission with a local copy of the pilot signal to produce a first output, a delayed correlator configured to delay the first output and correlate the first output with the delayed first output to produce a second output, and a detector configured to detect the pilot signal in the transmission based on the second output.

    摘要翻译: 获取模块包括相干相关器,其被配置为接收具有导频信号的传输并将接收到的传输与导频信号的本地副本相关联以产生第一输出,延迟相关器被配置为延迟第一输出并将第一输出与 延迟的第一输出以产生第二输出;以及检测器,被配置为基于所述第二输出来检测所述传输中的导频信号。

    SYSTEMS AND METHODS PROVIDING FREQUENCY-DOMAIN AUTOMATIC GAIN CONTROL (AGC)
    18.
    发明申请
    SYSTEMS AND METHODS PROVIDING FREQUENCY-DOMAIN AUTOMATIC GAIN CONTROL (AGC) 失效
    提供频域自动增益控制(AGC)的系统和方法

    公开(公告)号:US20110150152A1

    公开(公告)日:2011-06-23

    申请号:US12971839

    申请日:2010-12-17

    IPC分类号: H04L27/08

    CPC分类号: H03G3/3078

    摘要: A method for Automatic Gain Control (AGC) in a receiver is performed by a circuit having an inner loop and an outer loop. The method includes performing an outer loop energy detection, mitigating interference using the outer loop energy detection, and performing a frequency domain energy measurement in the inner loop. The method also includes adjusting a digital gain component in the inner loop and an analog gain component in the outer loop in response to the frequency domain energy measurement.

    摘要翻译: 接收机中的自动增益控制(AGC)的方法由具有内环和外环的电路执行。 该方法包括执行外环能量检测,使用外环能量检测来减轻干扰,以及在内循环中执行频域能量测量。 该方法还包括响应于频域能量测量调整内环中的数字增益分量和外环中的模拟增益分量。