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    APPARATUS AND METHOD FOR POWER TRANSMITTER IN WIRELESS COMMUNICATION SYSTEM
    3.
    发明申请
    APPARATUS AND METHOD FOR POWER TRANSMITTER IN WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中发射机的设备及方法

    公开(公告)号：US20090215413A1

    公开(公告)日：2009-08-27

    申请号：US12391774

    申请日：2009-02-24

    申请人： Cheol-Woo Ahn ,  Keun-Hyo Song ,  Cheol-Soo Seo ,  Young-Yoon Woo ,  Bum-Man Kim ,  Il-Du Kim

    发明人： Cheol-Woo Ahn ,  Keun-Hyo Song ,  Cheol-Soo Seo ,  Young-Yoon Woo ,  Bum-Man Kim ,  Il-Du Kim

    IPC分类号： H04B1/04

    CPC分类号： H03G3/3042 ,  H03C5/00 ,  H03F1/0227 ,  H03F3/245 ,  H03F2200/15 ,  H03F2200/511 ,  H03G3/004

    摘要： An apparatus and a method for an Envelope Elimination and Restoration (EER) power transmitter are provided. The apparatus includes a signal separator for splitting a transmit signal to an amplitude component and a phase component, an orthogonal modulator for modulating the phase component into a Radio Frequency (RF) signal, a bias modulator for linearly amplifying the amplitude component, for determining a bias voltage according to a magnitude of the amplitude component, and for providing a current generated using the determined bias voltage to a high-efficiency power amplifier and the high-efficiency power amplifier for amplifying the RF signal using the linearly amplified amplitude component as a drain bias voltage and using the generated current as a drain bias current.

    摘要翻译： 提供了消除和消除信封（EER）功率发射器的装置和方法。 该装置包括用于将发射信号分解为振幅分量和相位分量的信号分离器，用于将相位分量调制为射频（RF）信号的正交调制器，用于线性放大振幅分量的偏置调制器，用于确定 根据幅度分量的大小，将偏置电压提供给高效率功率放大器和用于使用线性放大振幅分量放大RF信号的高效率功率放大器作为漏极 使用发电电流作为漏极偏置电流。

    Apparatus and method for power transmitter in wireless communication system
    4.
    发明授权
    Apparatus and method for power transmitter in wireless communication system 有权
    无线通信系统中功率发射机的装置及方法

    公开(公告)号：US08107904B2

    公开(公告)日：2012-01-31

    申请号：US12391774

    申请日：2009-02-24

    申请人： Cheol-Woo Ahn ,  Keun-Hyo Song ,  Cheol-Soo Seo ,  Young-Yoon Woo ,  Bum-Man Kim ,  Il-Du Kim

    发明人： Cheol-Woo Ahn ,  Keun-Hyo Song ,  Cheol-Soo Seo ,  Young-Yoon Woo ,  Bum-Man Kim ,  Il-Du Kim

    IPC分类号： H01Q11/12

    CPC分类号： H03G3/3042 ,  H03C5/00 ,  H03F1/0227 ,  H03F3/245 ,  H03F2200/15 ,  H03F2200/511 ,  H03G3/004

    摘要： An apparatus and a method for an Envelope Elimination and Restoration (EER) power transmitter are provided. The apparatus includes a signal separator for splitting a transmit signal to an amplitude component and a phase component, an orthogonal modulator for modulating the phase component into a Radio Frequency (RF) signal, a bias modulator for linearly amplifying the amplitude component, for determining a bias voltage according to a magnitude of the amplitude component, and for providing a current generated using the determined bias voltage to a high-efficiency power amplifier and the high-efficiency power amplifier for amplifying the RF signal using the linearly amplified amplitude component as a drain bias voltage and using the generated current as a drain bias current.

    摘要翻译： 提供了消除和消除信封（EER）功率发射器的装置和方法。 该装置包括用于将发射信号分解为振幅分量和相位分量的信号分离器，用于将相位分量调制为射频（RF）信号的正交调制器，用于线性放大振幅分量的偏置调制器，用于确定 根据幅度分量的大小，将偏置电压提供给高效率功率放大器和用于使用线性放大振幅分量放大RF信号的高效率功率放大器作为漏极 使用发电电流作为漏极偏置电流。

    Apparatus for receiving signals in a base station for cellular radio telecommunication system
    5.
    发明授权
    Apparatus for receiving signals in a base station for cellular radio telecommunication system 失效
    用于在蜂窝无线电信系统的基站中接收信号的装置

    公开(公告)号：US06738367B1

    公开(公告)日：2004-05-18

    申请号：US09483194

    申请日：2000-01-14

    申请人： Cheol-Soo Seo

    发明人： Cheol-Soo Seo

    IPC分类号： H04B7216

    CPC分类号： H04W88/08

    摘要： An apparatus for receiving signals in a base station of a CDMA communication system including a first and a second subordinate base station (Pico-BTS) having a small capacity, each including a transmission-reception antenna, a duplexer connected to the antenna, a transmitter for transmitting a signal through the duplexer to the antenna, a main receiver for receiving a signal from the antenna through the duplexer, and an auxiliary receiver, wherein the main receiver of each of the first and second Pico-BTS divides the signal from the antenna into two subordinate signals, one of which is applied to the main receiver in a normal way and the other is applied to the auxiliary receiver of another Pico-BTS.

    摘要翻译： 一种用于在包括具有小容量的第一和第二从属基站（Pico-BTS）的CDMA通信系统的基站中接收信号的装置，每个包括发送 - 接收天线，连接到天线的双工器，发射机 用于通过双工器将信号发送到天线，用于通过双工器从天线接收信号的主接收机和辅助接收机，其中第一和第二微微BTS中的每一个的主接收机将来自天线的信号 分为两个从属信号，其中一个以正常方式应用于主接收机，另一个信号应用于另一个微微BTS的辅助接收机。

    Apparatus for optionally supporting time division duplex and frequency division duplex in a wireless communication system
    6.
    发明授权
    Apparatus for optionally supporting time division duplex and frequency division duplex in a wireless communication system 失效
    用于可选地支持无线通信系统中的时分双工和频分双工的装置

    公开(公告)号：US07948924B2

    公开(公告)日：2011-05-24

    申请号：US12031948

    申请日：2008-02-15

    申请人： Cheol-Soo Seo

    发明人： Cheol-Soo Seo

    IPC分类号： H04J4/00

    CPC分类号： H04B1/48

    摘要： A Radio Frequency (RF) front-end apparatus in a wireless communication system is provided. The apparatus includes a plurality of BandPass Filters (BPFs) for band-pass filtering a transmission signal or a reception signal, at least one circulator for dividing a signal transmission path and a signal reception path and at least one switch for controlling the signal transmission path and the signal reception path. The RF front-end apparatus provided by the present invention supports various frequency bands and optionally supports TDD and FDD in a wireless communication system.

    摘要翻译： 提供了一种无线通信系统中的射频（RF）前端装置。 该装置包括用于对传输信号或接收信号进行带通滤波的多个带通滤波器（BPF），用于分割信号传输路径的至少一个环行器和信号接收路径，以及用于控制信号传输路径的至少一个开关 和信号接收路径。 由本发明提供的RF前端装置支持各种频带，并且可选地在无线通信系统中支持TDD和FDD。

    Apparatus and method for detecting asynchronous transmission in a wireless communication system
    7.
    发明申请
    Apparatus and method for detecting asynchronous transmission in a wireless communication system 审中-公开
    一种用于在无线通信系统中检测异步传输的装置和方法

    公开(公告)号：US20070058706A1

    公开(公告)日：2007-03-15

    申请号：US11500423

    申请日：2006-08-08

    申请人： Cheol-Soo Seo

    发明人： Cheol-Soo Seo

    IPC分类号： H04L5/16

    CPC分类号： H04L5/1492 ,  H04L7/042 ,  H04W88/02

    摘要： An apparatus and a method are provided for detecting asynchronous transmission in a wireless communication system. In a transmitter, a correlator correlates a baseband transmission sample signal with a preamble signal. A decider detects a peak among correlations received from the correlator and determines whether transmission of the transmission sample signal is asynchronous by comparing a frame reference time with a detection time of the peak.

    摘要翻译： 提供了一种用于在无线通信系统中检测异步传输的装置和方法。 在发射机中，相关器将基带传输采样信号与前置码信号相关联。 决定器检测从相关器接收的相关中的峰值，并通过将帧参考时间与峰值的检测时间进行比较来确定发送采样信号的发送是否是异步的。

    TDD transceiver for utilizing a transmission mode and a reception mode simultaneously, and a self-diagnostic method therefor
    8.
    发明申请
    TDD transceiver for utilizing a transmission mode and a reception mode simultaneously, and a self-diagnostic method therefor 审中-公开
    TDD收发器以及其自身诊断方法

    公开(公告)号：US20060035601A1

    公开(公告)日：2006-02-16

    申请号：US11202574

    申请日：2005-08-12

    申请人： Cheol-Soo Seo

    发明人： Cheol-Soo Seo

    IPC分类号： H04B1/44

    CPC分类号： H04B1/40

    摘要： A TDD transceiver for utilizing a Tx mode and an Rx mode simultaneously and a self-diagnostic method therefor. In the TDD transceiver, a transmitter transmits a Tx signal from a Tx path to an antenna. A receiver for processes an Rx signal to a baseband signal. A detector couples the Tx signal in the transmitter and provides the coupled Tx signal to the receiver. A diagnostic portion determines if the TDD transceiver is normal or abnormal using the Tx signal received from the receiver.

    摘要翻译： 用于同时利用Tx模式和Rx模式的TDD收发器及其自诊断方法。 在TDD收发器中，发射机将Tx信号从Tx路径发送到天线。 用于处理基带信号的Rx信号的接收器。 检测器耦合发射机中的Tx信号，并将耦合的Tx信号提供给接收机。 诊断部分使用从接收机接收的Tx信号确定TDD收发器是正常还是异常。

    Output control unit of mobile communication system and its controlling method
    9.
    发明授权
    Output control unit of mobile communication system and its controlling method 失效
    移动通信系统的输出控制单元及其控制方法

    公开(公告)号：US6026284A

    公开(公告)日：2000-02-15

    申请号：US867339

    申请日：1997-06-02

    申请人： Cheol-Soo Seo

    发明人： Cheol-Soo Seo

    IPC分类号： H04B7/26 ,  H03G3/30 ,  H04B1/40 ,  H04B1/707 ,  H04B1/04

    CPC分类号： H03G3/3042

    摘要： An output control unit of a mobile communication system includes a transmit up-converter board having first and second mixers responsive to first and second oscillation frequency signals, respectively, for up-converting the frequency of a transmission signal, an attenuator installed between the transmit up-converter board and a final output terminal for controlling output of the up-converted transmission signal order to eliminate unwanted signal characteristic irrespective of amplification and attenuation when the transmission signal is up-converted for transmission and a transceiver slave control unit responsive to the second oscillation frequency signal for generating a control signal for controlling the attenuator, wherein the transceiver slave control unit utilizes an interface unit controlled to produce phase locked loop control data for controlling a local oscillator to generate the second local oscillation frequency of a designated channel, wherein the local oscillator informs the interface unit that it is locked at the designated channel's frequency; a main processor unit for detecting that the local oscillator is tuned to the designated channel in response to an output from the interface unit indicating that the local oscillator is locked at the designated channel's frequency; a control memory for storing a control voltage conversion table of digital-to-analog conversion step values, wherein the main processor unit searches for an output attenuation value of the designated channel in a channel conversion table and accesses the control version conversion table to determine a digital-to-analog conversion step value corresponding to the output attenuation value of the designated channel; and a digital-to-analog converter for converting the digital-to-analog conversion step value transmitted from the main processor unit into the control signal for controlling the attenuator.

    摘要翻译： 移动通信系统的输出控制单元包括：发射上变频器板，其具有分别响应于第一和第二振荡频率信号的第一和第二混频器，用于上变频传输信号的频率;衰减器，安装在发射上升 变换器板和最终输出端子，用于控制上变频传输信号的输出顺序，以消除不必要的信号特性，而不管放大和衰减如何，当传输信号被上变频传输时，收发器从控制单元响应于第二振荡 频率信号，用于产生用于控制衰减器的控制信号，其中收发机从控制单元利用被控制的接口单元来产生锁相环控制数据，用于控制本地振荡器以产生指定信道的第二本地振荡频率，其中本地 振荡器通知 他将接口单元锁定在指定频道的频率上; 主处理器单元，用于响应于来自接口单元的输出，将本地振荡器调谐到指定信道，指示本地振荡器被锁定在指定信道的频率; 控制存储器，用于存储数/模转换步数值的控制电压转换表，其中主处理器单元在通道转换表中搜索指定通道的输出衰减值，并访问控制版本转换表以确定 数字到模拟转换步长值对应于指定通道的输出衰减值; 以及数模转换器，用于将从主处理器单元发送的数模转换步数值转换成用于控制衰减器的控制信号。