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    Apparatus and method for reducing peak-to-average power ratio in an OFDM communication system
    2.
    发明申请
    Apparatus and method for reducing peak-to-average power ratio in an OFDM communication system 有权
    用于降低OFDM通信系统中的峰均功率比的装置和方法

    公开(公告)号：US20070041459A1

    公开(公告)日：2007-02-22

    申请号：US11501964

    申请日：2006-08-10

    申请人： Hae-Dong Yeon ,  Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song ,  Dong-Kyu Kim ,  Dong-Joon Shin

    发明人： Hae-Dong Yeon ,  Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song ,  Dong-Kyu Kim ,  Dong-Joon Shin

    IPC分类号： H04K1/10

    CPC分类号： H04L27/2624

    摘要： A Peak-to-Average Power Ratio (PAPR) reduction apparatus and method in an OFDM communication system are provided. In the PAPR reduction method, magnitude and phase components are extracted from transmission sample data. Peaks having magnitude components exceeding a threshold are detected by comparing the extracted magnitude components with the threshold. The highest of the peaks is detected and compared with the threshold. If the highest peak is greater than the threshold, the highest peak is updated.

    摘要翻译： 提供了一种OFDM通信系统中的峰值平均功率比（PAPR）降低装置和方法。 在PAPR缩小方法中，从传输样本数据中提取幅度和相位分量。 通过将所提取的幅度分量与阈值进行比较来检测具有超过阈值的幅度分量的峰值。 检测最高峰，并将其与阈值进行比较。 如果最高峰值大于阈值，则更新最高峰。

    Apparatus and method for transmitting a signal in a communication system
    3.
    发明申请
    Apparatus and method for transmitting a signal in a communication system 审中-公开
    用于在通信系统中发送信号的装置和方法

    公开(公告)号：US20060215780A1

    公开(公告)日：2006-09-28

    申请号：US11388260

    申请日：2006-03-24

    申请人： Hae-Dong Yeon ,  Sung-Soo Kim ,  Yun-Sang Park ,  Bong-Gee Song ,  Jae-Yong Lee

    发明人： Hae-Dong Yeon ,  Sung-Soo Kim ,  Yun-Sang Park ,  Bong-Gee Song ,  Jae-Yong Lee

    IPC分类号： H04K1/10

    CPC分类号： H04L27/2623 ,  H04L5/023 ,  H04L27/2624

    摘要： In a communication system using an Orthogonal Frequency Division Multiple Access (OFDMA) scheme, at least one value mapped to the number of threshold subchannels is compared with the number of subchannels allocated to a signal transmission apparatus in an associated Orthogonal Frequency Division Multiplexing (OFDM) symbol when transmission data including m bits is input. In response to a comparison result, (m−k) bits are generated from the transmission data using at least one of clipping and rounding. The (m−k) bits are converted to an analog signal and the analog signal is transmitted. The number of threshold subchannels is preset to determine whether to use clipping, rounding or both.

    摘要翻译： 在使用正交频分多址（OFDMA）方式的通信系统中，映射到阈值子信道数量的至少一个值与在相关联的正交频分复用（OFDM）中分配给信号发送装置的子信道数量进行比较， 输入包含m位的传输数据时的符号。 响应于比较结果，使用削波和舍入中的至少一个从发送数据生成（m-k）个比特。 （m-k）位转换为模拟信号，并传输模拟信号。 阈值子通道的数量是预设的，以确定是使用裁剪，舍入还是两者。

    Sync extraction apparatus in communication system and method thereof
    5.
    发明申请
    Sync extraction apparatus in communication system and method thereof 有权
    通信系统中的同步提取装置及其方法

    公开(公告)号：US20060062335A1

    公开(公告)日：2006-03-23

    申请号：US11216851

    申请日：2005-08-31

    申请人： Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song

    发明人： Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song

    IPC分类号： H03D1/00

    CPC分类号： H04L27/2675 ,  H04L7/042 ,  H04L7/08 ,  H04L27/261 ,  H04L27/2656 ,  H04L27/2662 ,  H04L27/2684

    摘要： A synchronization extraction apparatus for a communication system and a method thereof are disclosed. A frame synchronization is obtained in a manner that the sum of an input signal and a delay signal is obtained without obtaining a simple correlation value between the input signal and the delay signal, and then a correlation value between a summed signal and the delay signal is obtained. The synchronization extraction apparatus and method can reduce the implementation complexity and power consumption in obtaining the frame synchronization, and thus increase the battery cycle of a terminal provided with the synchronization extraction apparatus or method.

    摘要翻译： 公开了一种用于通信系统的同步提取装置及其方法。 获得帧同步，使得在不获得输入信号和延迟信号之间的简单相关值的情况下获得输入信号和延迟信号的和，然后相加信号与延迟信号之间的相关值为 获得。 同步提取装置和方法可以在获得帧同步的同时降低实施复杂度和功耗，从而增加了具有同步提取装置或方法的终端的电池周期。

    Apparatus and method for reducing an error vector magnitude in an orthogonal frequency division multiplexing receiver
    7.
    发明申请
    Apparatus and method for reducing an error vector magnitude in an orthogonal frequency division multiplexing receiver 审中-公开
    用于减小正交频分复用接收机中的误差矢量幅度的装置和方法

    公开(公告)号：US20060159006A1

    公开(公告)日：2006-07-20

    申请号：US11333460

    申请日：2006-01-17

    申请人： Hae-Dong Yeon ,  Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song

    发明人： Hae-Dong Yeon ,  Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song

    IPC分类号： H04J11/00

    CPC分类号： H04L27/2607

    摘要： An apparatus and a method for reducing an error vector magnitude in an orthogonal frequency division multiplexing (OFDM) receiver. The method includes the steps of inputting a receiving symbol including a guard interval and an effective symbol interval following the guard interval, in which a front portion of the guard interval and a rear portion of the effective symbol interval have windowing intervals corresponding to windowing of a transmitter, and replacing a signal of the rear windowing interval with a signal of an interval between the front windowing interval and the effective symbol interval, thereby outputting a signal of the effective symbol interval, which substitutes for a signal of the rear windowing interval, to a fast Fourier transform (FFT) section.

    摘要翻译： 一种用于减小正交频分复用（OFDM）接收机中的误差矢量幅度的装置和方法。 该方法包括以下步骤：输入包括保护间隔和保护间隔之后的有效符号间隔的接收符号，其中保护间隔的前部和有效符号间隔的后部具有对应于窗口的开窗间隔 发送器，并且用前窗口间隔和有效符号间隔之间的间隔的信号替换后窗口间隔的信号，从而将代替后窗口间隔的信号的有效符号间隔的信号输出到 快速傅里叶变换（FFT）部分。

    Sync extraction apparatus in communication system and method thereof
    8.
    发明授权
    Sync extraction apparatus in communication system and method thereof 有权
    通信系统中的同步提取装置及其方法

    公开(公告)号：US07711074B2

    公开(公告)日：2010-05-04

    申请号：US11216851

    申请日：2005-08-31

    申请人： Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song

    发明人： Jae-Yong Lee ,  Yun-Sang Park ,  Bong-Gee Song

    IPC分类号： H03D1/00

    CPC分类号： H04L27/2675 ,  H04L7/042 ,  H04L7/08 ,  H04L27/261 ,  H04L27/2656 ,  H04L27/2662 ,  H04L27/2684

    摘要： A synchronization extraction apparatus for a communication system and a method thereof are disclosed. A frame synchronization is obtained in a manner that the sum of an input signal and a delay signal is obtained without obtaining a simple correlation value between the input signal and the delay signal, and then a correlation value between a summed signal and the delay signal is obtained. The synchronization extraction apparatus and method can reduce the implementation complexity and power consumption in obtaining the frame synchronization, and thus increase the battery cycle of a terminal provided with the synchronization extraction apparatus or method.

    摘要翻译： 公开了一种用于通信系统的同步提取装置及其方法。 获得帧同步，使得在不获得输入信号和延迟信号之间的简单相关值的情况下获得输入信号和延迟信号的和，然后相加信号与延迟信号之间的相关值为 获得。 同步提取装置和方法可以在获得帧同步的同时降低实施复杂度和功耗，从而增加了具有同步提取装置或方法的终端的电池周期。

    Method and apparatus for transmitting and receiving preamble signal in a wireless communication system
    10.
    发明申请
    Method and apparatus for transmitting and receiving preamble signal in a wireless communication system 审中-公开
    用于在无线通信系统中发送和接收前导信号的方法和装置

    公开(公告)号：US20060034397A1

    公开(公告)日：2006-02-16

    申请号：US11201733

    申请日：2005-08-11

    申请人： Jae-Yong Lee ,  Ji-Ho Jang ,  Tae-Gon Kim ,  Yun-Sang Park ,  Bong-Gee Song

    发明人： Jae-Yong Lee ,  Ji-Ho Jang ,  Tae-Gon Kim ,  Yun-Sang Park ,  Bong-Gee Song

    IPC分类号： H04J11/00

    CPC分类号： H04L27/2655 ,  H04B1/7075 ,  H04B2201/70701 ,  H04L27/2613 ,  H04L27/2666

    摘要： Disclosed is an apparatus and a method for transmitting/receiving synchronization mode information in a wireless communication system. A transmission apparatus in the wireless communication system includes a mode information creating unit for creating operation mode information based on a determined utilized bandwidth, and a preamble generating unit for outputting a frequency domain preamble signal including the created operation mode information. A reception apparatus includes a signal receiving unit for receiving a frequency domain preamble signal, a bandwidth determining unit for determining a utilized bandwidth, and a mode information detecting unit for detecting operation mode information from the frequency domain preamble signal according to the determined utilized bandwidth.

    摘要翻译： 公开了一种在无线通信系统中发送/接收同步模式信息的装置和方法。 无线通信系统中的传输装置包括用于基于所确定的利用带宽创建操作模式信息的模式信息创建单元和用于输出包括所创建的操作模式信息的频域前同步信号的前导码生成单元。 接收装置包括用于接收频域前导码信号的信号接收单元，用于确定利用带宽的带宽确定单元，以及用于根据确定的利用带宽从频域前导码信号检测操作模式信息的模式信息检测单元。