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    • 1. 发明申请
    • WIRELESS TRANSCEIVER SYSTEM FOR SUPPORTING DUAL MODE
    • 用于支持双模的无线收发系统
    • US20100118744A1
    • 2010-05-13
    • US12447104
    • 2007-05-03
    • Heon-Kook KwonJoon-Hyung KimSeong-Min KimYun-Soo KoJae-Ho JungKwang-Chun Lee
    • Heon-Kook KwonJoon-Hyung KimSeong-Min KimYun-Soo KoJae-Ho JungKwang-Chun Lee
    • H04B7/005H04B7/00H04J3/00
    • H04B1/406H04B1/52H04B1/54
    • The present invention relates to a wireless transceiver system for supporting a dual mode, and more particularly to a wireless transceiver system for supporting a dual mode that simultaneously supports the Frequency Division Duplex (FDD) method and the Time Division Duplex (TDD) method in a certain frequency band. The present system supports the FDD system conducting transmission and reception simultaneously by using different frequency bands for transmission and reception as well as the TDD system temporally alternating transmission and reception by using the common frequency band among an upper frequency band and a lower frequency band used in the FDD system as well as another frequency band adjacent thereto, thereby selectively supporting both of the two communication systems in a wireless transceiver system. Therefore, efficient use of various wireless communication standards and the limited frequency resource is provided, and on this basis, an efficient application of all wireless transceiver systems adopting the TDD system and the FDD system as well as the mobile communication base station and the terminal is provided.
    • 本发明涉及一种用于支持双模式的无线收发器系统,更具体地涉及一种用于支持同时支持频分双工(FDD)方法和时分双工(TDD)方法的双模式的无线收发器系统, 某些频段。 本系统支持FDD系统,通过使用不同的频带进行发送和接收,并且通过使用在上述频带中使用的较高频带和较低频带中的公共频带来进行时间上交替的发送和接收,同时进行发送和接收 FDD系统以及与其相邻的另一频带,从而在无线收发器系统中选择性地支持两个通信系统。 因此,提供了各种无线通信标准和有限频率资源的有效利用,并且在此基础上,采用TDD系统和FDD系统以及移动通信基站和终端的所有无线收发机系统的有效应用是 提供。
    • 3. 发明授权
    • PLL apparatus for OFDM system having variable channel bands and operating method thereof
    • 具有可变信道频带的OFDM系统的PLL装置及其操作方法
    • US07612618B2
    • 2009-11-03
    • US11925073
    • 2007-10-26
    • Yun-Soo KoSeong-Min KimKwang-Chun Lee
    • Yun-Soo KoSeong-Min KimKwang-Chun Lee
    • H03L7/00
    • H03L7/107H03L7/18
    • Provided are a PLL apparatus for an OFDM system having variable channel band and an operating method thereof. The PLL apparatus includes a frequency divider for dividing an oscillating signal; a phase detector for detecting a phase difference between a reference signal and the divided oscillating signal from the frequency divider and outputting the phase difference signal; a variable loop filter for filtering a phase difference signal outputted from the phase detector; a voltage control oscillator for outputting the oscillator signal to the frequency divider according to the voltage control signal filtered from the variable loop filter; and a variable loop filter controller for varying a filtering band of the variable loop filter according to each of the channel bands.
    • 提供一种用于具有可变信道频带的OFDM系统的PLL装置及其操作方法。 PLL装置包括用于分频振荡信号的分频器; 相位检测器,用于检测来自分频器的参考信号和分频振荡信号之间的相位差,并输出相位差信号; 用于对从相位检测器输出的相位差信号进行滤波的可变环路滤波器; 电压控制振荡器,用于根据从可变环路滤波器滤波的电压控制信号将振荡器信号输出到分频器; 以及可变环路滤波器控制器,用于根据每个信道频带改变可变环路滤波器的滤波频带。
    • 4. 发明授权
    • Antenna matching device and transceiver having the same
    • 天线匹配装置和收发器具有相同的功能
    • US07840200B2
    • 2010-11-23
    • US11929863
    • 2007-10-30
    • Byung-Su KangJae-Ho JungSeong-Min KimKwang-Chun Lee
    • Byung-Su KangJae-Ho JungSeong-Min KimKwang-Chun Lee
    • H04B1/18
    • H04B1/18
    • The present invention relates to an antenna matching device that varies a frequency bandwidth according to mobile communication services, and to a transceiver having the same. To this end, an exemplary embodiment of the present invention provides a transceiver that varies a frequency band and a bandwidth according to required services in a mobile communication system, the transceiver including an antenna matching controller that generates a prescribed switch control signal according to a service requested by a user, an antenna variable matching unit that variably forms a matching circuit according to the switch control signal to be transmitted from the antenna matching controller and varies the frequency band and the bandwidth, an analog processing unit that processes a signal to be transmitted/received through the antenna variable matching unit, and a wideband antenna that transmits/receives a radio frequency according to the frequency band and the bandwidth set by the antenna variable matching unit. Another exemplary embodiment of the present invention provides an antenna matching device including a resistor that reduces a frequency bandwidth, an inductor that reduces a frequency passing band, a capacitor and a resistor that increase the frequency passing band, and switches that control the operations of the inductor and the capacitor. According to the present invention, unnecessary radiation power of a variable matching unit can be minimized, and maximum transmission power required according to services can be reduced. In addition, system construction costs can be reduced, and a user capacity can be increased.
    • 本发明涉及根据移动通信业务改变频率带宽的天线匹配装置以及具有该天线匹配装置的收发信机。 为此,本发明的示例性实施例提供了一种根据移动通信系统中的所需服务来改变频带和带宽的收发器,该收发器包括:天线匹配控制器,其根据服务产生规定的开关控制信号 用户请求的天线可变匹配单元,根据要从天线匹配控制器发送的切换控制信号可变地形成匹配电路并改变频带和带宽;模拟处理单元,处理要传输的信号 通过天线可变匹配单元接收的宽带天线,以及根据由天线可变匹配单元设定的频带和带宽发射/接收射频的宽带天线。 本发明的另一个示例性实施例提供了一种天线匹配装置,其包括降低频率带宽的电阻器,减小频率通过的电感器,增加频率通过频带的电容器和电阻器,以及控制 电感和电容。 根据本发明,可以使可变匹配单元的不必要的辐射功率最小化,并且可以减少根据服务所需的最大发射功率。 此外,可以降低系统构造成本,能够提高用户容量。
    • 5. 发明申请
    • GAIN CONTROL APPARATUS AND METHOD IN RECEIVER OF MULTIBAND OFDM SYSTEM
    • 多频OFDM系统接收机的增益控制装置及方法
    • US20100136939A1
    • 2010-06-03
    • US12507474
    • 2009-07-22
    • Seong-Min KimByung-Su KangGweon-Do JoJae-Ho JungJoon-Hyung KimHeon-Kook KwonSung-Jun LeeKwang-Chun Lee
    • Seong-Min KimByung-Su KangGweon-Do JoJae-Ho JungJoon-Hyung KimHeon-Kook KwonSung-Jun LeeKwang-Chun Lee
    • H04B7/00
    • H04L27/2647H03G3/3068
    • A gain control apparatus in a receiver of multiband OFDM system includes: an amplifier amplifying a received signal based on a first auto gain control signal; an analog-to-digital converter for converting the amplified signal into a digital signal; band reception signal extractor for extracting a signal of a desired reception band from the converted digital signal for each reception band, and controlling gain of the extracted signal according to a second auto gain control signal; a reception power detector for detecting a reception power value of whole band from the converted digital signal; and a multiband integration baseband processor for generating the first auto gain control signal by using the detected reception power value of the whole band, and generating the second auto gain control signal to be provided to the band reception signal extraction units, resource allocation information for each band and a reception power for each reception band.
    • 多频带OFDM系统的接收机中的增益控制装置包括:基于第一自动增益控制信号放大接收信号的放大器; 用于将放大的信号转换成数字信号的模拟 - 数字转换器; 频带接收信号提取器,用于从每个接收频带的转换的数字信号中提取期望的接收频带的信号,并根据第二自动增益控制信号控制所提取的信号的增益; 接收功率检测器,用于从转换的数字信号中检测整个频带的接收功率值; 以及多频带集成基带处理器,用于通过使用检测到的整个频带的接收功率值来产生第一自动增益控制信号,并且生成要提供给频带接收信号提取单元的第二自动增益控制信号,每个 频带和每个接收频带的接收功率。
    • 6. 发明申请
    • ANTENNA MATCHING DEVICE AND TRANSCEIVER HAVING THE SAME
    • 天线匹配装置和具有相同功能的收发器
    • US20080136729A1
    • 2008-06-12
    • US11929863
    • 2007-10-30
    • Byung-Su KANGJae-Ho JungSeong-Min KimKwang-Chun Lee
    • Byung-Su KANGJae-Ho JungSeong-Min KimKwang-Chun Lee
    • H01Q1/50
    • H04B1/18
    • The present invention relates to an antenna matching device that varies a frequency bandwidth according to mobile communication services, and to a transceiver having the same. To this end, an exemplary embodiment of the present invention provides a transceiver that varies a frequency band and a bandwidth according to required services in a mobile communication system, the transceiver including an antenna matching controller that generates a prescribed switch control signal according to a service requested by a user, an antenna variable matching unit that variably forms a matching circuit according to the switch control signal to be transmitted from the antenna matching controller and varies the frequency band and the bandwidth, an analog processing unit that processes a signal to be transmitted/received through the antenna variable matching unit, and a wideband antenna that transmits/receives a radio frequency according to the frequency band and the bandwidth set by the antenna variable matching unit. Another exemplary embodiment of the present invention provides an antenna matching device including a resistor that reduces a frequency bandwidth, an inductor that reduces a frequency passing band, a capacitor and a resistor that increase the frequency passing band, and switches that control the operations of the inductor and the capacitor. According to the present invention, unnecessary radiation power of a variable matching unit can be minimized, and maximum transmission power required according to services can be reduced. In addition, system construction costs can be reduced, and a user capacity can be increased.
    • 本发明涉及根据移动通信业务改变频率带宽的天线匹配装置以及具有该天线匹配装置的收发信机。 为此,本发明的示例性实施例提供了一种根据移动通信系统中的所需服务来改变频带和带宽的收发器,该收发器包括:天线匹配控制器,其根据服务产生规定的开关控制信号 用户请求的天线可变匹配单元,根据要从天线匹配控制器发送的切换控制信号可变地形成匹配电路并改变频带和带宽;模拟处理单元,处理要传输的信号 通过天线可变匹配单元接收的宽带天线,以及根据由天线可变匹配单元设定的频带和带宽发射/接收射频的宽带天线。 本发明的另一个示例性实施例提供了一种天线匹配装置,其包括降低频率带宽的电阻器,减小频率通过的电感器,增加频率通过频带的电容器和电阻器,以及控制 电感和电容。 根据本发明,可以使可变匹配单元的不必要的辐射功率最小化,并且可以减少根据服务所需的最大发射功率。 此外,可以降低系统构造成本,能够提高用户容量。
    • 8. 发明授权
    • Gain control apparatus and method in receiver of multiband OFDM system
    • 多频OFDM系统接收机增益控制装置及方法
    • US08213891B2
    • 2012-07-03
    • US12507474
    • 2009-07-22
    • Seong-Min KimByung-Su KangGweon-Do JoJae-Ho JungJoon-Hyung KimHeon-Kook KwonSung-Jun LeeKwang-Chun Lee
    • Seong-Min KimByung-Su KangGweon-Do JoJae-Ho JungJoon-Hyung KimHeon-Kook KwonSung-Jun LeeKwang-Chun Lee
    • H04B1/06H04B7/00
    • H04L27/2647H03G3/3068
    • A gain control apparatus in a receiver of multiband OFDM system includes: an amplifier amplifying a received signal based on a first auto gain control signal; an analog-to-digital converter for converting the amplified signal into a digital signal; band reception signal extractor for extracting a signal of a desired reception band from the converted digital signal for each reception band, and controlling gain of the extracted signal according to a second auto gain control signal; a reception power detector for detecting a reception power value of whole band from the converted digital signal; and a multiband integration baseband processor for generating the first auto gain control signal by using the detected reception power value of the whole band, and generating the second auto gain control signal to be provided to the band reception signal extraction units, resource allocation information for each band and a reception power for each reception band.
    • 多频带OFDM系统的接收机中的增益控制装置包括:基于第一自动增益控制信号放大接收信号的放大器; 用于将放大的信号转换成数字信号的模拟 - 数字转换器; 频带接收信号提取器,用于从每个接收频带的转换的数字信号中提取期望的接收频带的信号,并根据第二自动增益控制信号控制所提取的信号的增益; 接收功率检测器,用于从转换的数字信号中检测整个频带的接收功率值; 以及多频带集成基带处理器,用于通过使用检测到的整个频带的接收功率值来产生第一自动增益控制信号,并且生成要提供给频带接收信号提取单元的第二自动增益控制信号,每个 频带和每个接收频带的接收功率。