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    Automatic gain control for a wireless transmit/receive unit in a time slotted data transmissions
    1.
    发明授权
    Automatic gain control for a wireless transmit/receive unit in a time slotted data transmissions 有权
    在时隙数据传输中对无线发射/接收单元进行自动增益控制

    公开(公告)号：US07197289B2

    公开(公告)日：2007-03-27

    申请号：US10613463

    申请日：2003-07-03

    申请人： Eldad Zeira ,  Mihaela Beluri ,  Robert Lind Olesen ,  Rui Yang

    发明人： Eldad Zeira ,  Mihaela Beluri ,  Robert Lind Olesen ,  Rui Yang

    IPC分类号： H04B1/06

    CPC分类号： H04W52/52

    摘要： A system and method for automatic gain control for a wireless transmit and receive unit in a time-slotted communications system includes initializing an automatic gain control loop, sampling a received signal, and estimating the power of the received signal. The estimated power of the received signal is compared with a reference power level and an error signal is generated based upon the difference between the estimated power and the reference power level. The error signals generated by a plurality of received signals are accumulated in an accumulator, and the value of the accumulator is looked up in a table to locate a control word for an attenuator. The control word is then passed to the attenuator to adjust the gain.

    摘要翻译： 用于时隙通信系统中的无线发射和接收单元的自动增益控制的系统和方法包括：初始化自动增益控制环路，对接收到的信号进行采样，以及估计接收信号的功率。 将接收信号的估计功率与参考功率电平进行比较，并且基于估计功率与参考功率电平之间的差产生误差信号。 由多个接收信号产生的误差信号被累加在累加器中，并且在表中查找累加器的值以定位衰减器的控制字。 然后将控制字传递给衰减器以调整增益。

    Wireless communication apparatus using fast fourier transforms to create, optimize and incorporate a beam space antenna array in an orthogonal frequency division multiplexing receiver
    6.
    发明授权
    Wireless communication apparatus using fast fourier transforms to create, optimize and incorporate a beam space antenna array in an orthogonal frequency division multiplexing receiver 有权
    使用快速傅立叶变换的无线通信设备在正交频分复用接收机中创建，优化和并入波束空间天线阵列

    公开(公告)号：US07453964B2

    公开(公告)日：2008-11-18

    申请号：US11586415

    申请日：2006-10-25

    申请人： Robert Lind Olesen ,  Alexander Reznik ,  Philip J. Pietraski ,  Rui Yang

    发明人： Robert Lind Olesen ,  Alexander Reznik ,  Philip J. Pietraski ,  Rui Yang

    IPC分类号： H04B1/02

    CPC分类号： H04L27/2647 ,  H04B7/0845 ,  H04B7/086

    摘要： A wireless communication apparatus which uses fast Fourier transforms (FFTs) in an orthogonal frequency division multiplexing (OFDM) receiver which incorporates a beam space antenna array. The beam space antenna array may be implemented with a Butler matrix array. The beam space antenna array may be a circular array, vertical array, or a combination of both circular and vertical arrays, for providing the desired angular antenna coverage. In one embodiment, the antenna array is optimized because the FFTs are linear invariant transform operators, whereby the order of operations in the OFDM receiver can be interchanged.

    摘要翻译： 一种在包含波束空间天线阵列的正交频分复用（OFDM）接收机中使用快速傅里叶变换（FFT）的无线通信装置。 波束空间天线阵列可以用Butler矩阵阵列来实现。 波束空间天线阵列可以是圆形阵列，垂直阵列或圆形阵列和垂直阵列的组合，用于提供所需的角度天线覆盖。 在一个实施例中，天线阵列被优化，因为FFT是线性不变变换运算符，由此OFDM接收机中的操作顺序可以互换。

    WIRELESS COMMUNICATION APPARATUS USING FAST FOURIER TRANSFORMS TO CREATE, OPTIMIZE AND INCORPORATE A BEAM SPACE ANTENNA ARRAY IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING RECEIVER
    8.
    发明申请
    WIRELESS COMMUNICATION APPARATUS USING FAST FOURIER TRANSFORMS TO CREATE, OPTIMIZE AND INCORPORATE A BEAM SPACE ANTENNA ARRAY IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING RECEIVER 失效
    无线通信设备使用快速傅立叶变换创建，优化并且合并一个正弦波频段多路复用接收机中的一个光束天线阵列

    公开(公告)号：US20090058726A1

    公开(公告)日：2009-03-05

    申请号：US12269271

    申请日：2008-11-12

    申请人： Robert Lind Olesen ,  Alexander Reznik ,  Philip J. Pietraski ,  Rui Yang

    发明人： Robert Lind Olesen ,  Alexander Reznik ,  Philip J. Pietraski ,  Rui Yang

    IPC分类号： H01Q3/00 ,  H04J11/00

    CPC分类号： H04L27/2647 ,  H04B7/0845 ,  H04B7/086

    摘要： A wireless communication apparatus which uses fast Fourier transforms (FFTs) in an orthogonal frequency division multiplexing (OFDM) receiver which incorporates a beam space antenna array. The beam space antenna array may be implemented with a Butler matrix array. The beam space antenna array may be a circular array, vertical array, or a combination of both circular and vertical arrays, for providing the desired angular antenna coverage. In one embodiment, the antenna array is optimized because the FFTs are linear invariant transform operators, whereby the order of operations in the OFDM receiver can be interchanged.

    摘要翻译： 一种在包含波束空间天线阵列的正交频分复用（OFDM）接收机中使用快速傅里叶变换（FFT）的无线通信装置。 波束空间天线阵列可以用Butler矩阵阵列来实现。 波束空间天线阵列可以是圆形阵列，垂直阵列或圆形阵列和垂直阵列的组合，用于提供所需的角度天线覆盖。 在一个实施例中，天线阵列被优化，因为FFT是线性不变变换运算符，由此OFDM接收机中的操作顺序可以互换。

    Communication system and method using signal to noise ratio estimation for scaling in processing received wireless communication signals
    9.
    发明授权
    Communication system and method using signal to noise ratio estimation for scaling in processing received wireless communication signals 失效
    使用信噪比估计的通信系统和方法，用于缩放处理接收到的无线通信信号

    公开(公告)号：US07032160B2

    公开(公告)日：2006-04-18

    申请号：US10912671

    申请日：2004-08-05

    申请人： Gregory S. Sternberg ,  Rui Yang ,  Philip J. Pietraski ,  Robert Lind Olesen

    发明人： Gregory S. Sternberg ,  Rui Yang ,  Philip J. Pietraski ,  Robert Lind Olesen

    IPC分类号： H03M13/00

    CPC分类号： H04L25/067 ,  H03M13/35 ,  H04L1/0045 ,  H04L1/0071 ,  H04L1/1812 ,  H04L1/20 ,  H04L25/0222

    摘要： A system, components and methods provide FEC decoding in a wireless communication system in which signal to noise ratio estimation is used for scaling information captured by a demodulator in processing received wireless communication signals. A preferred wireless transmit receive unit (WTRU) has a channel rate estimation device configured to process the received communication signals for the particular communication channel and to produce channel change rate estimates. A signal to noise ratio (SNR) estimation device of the WTRU is configured to produce SNR estimates based on observation windows of a calculated number of samples of the received signal where the number of samples used for each observation window is calculated a function of the channel change rate estimates produce by the channel rate estimation device.

    摘要翻译： 系统，组件和方法在无线通信系统中提供FEC解码，其中使用信噪比估计来缩放解调器在处理接收的无线通信信号中捕获的信息。 优选的无线发射接收单元（WTRU）具有信道速率估计装置，其被配置为处理用于特定通信信道的所接收的通信信号并产生信道变化率估计。 WTRU的信噪比（SNR）估计装置被配置为基于所计算的接收信号样本的观测窗口来产生SNR估计，其中，每个观察窗口使用的采样数量被计算为信道的功能 信道速率估计装置产生的变化率估计值。