专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08792395B2 Wireless transceiver system for supporting dual mode 有权
标题翻译：无线收发系统支持双模
公开(公告)号：US08792395B2
公开(公告)日：2014-07-29
申请号：US12447104
申请日：2007-05-03
申请人： Heon-Kook Kwon , Joon-Hyung Kim , Seong-Min Kim , Yun-Soo Ko , Jae-Ho Jung , Kwang-Chun Lee
发明人： Heon-Kook Kwon , Joon-Hyung Kim , Seong-Min Kim , Yun-Soo Ko , Jae-Ho Jung , Kwang-Chun Lee
IPC分类号： H04B7/005 , H04B7/00 , H04J3/00 , H04J1/00
CPC分类号： H04B1/406 , H04B1/52 , H04B1/54
摘要： The present invention relates 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.
摘要翻译：本发明涉及一种用于支持在一定频带内同时支持频分双工（FDD）方法和时分双工（TDD）方法的双模式的无线收发机系统。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。

2. 发明申请

US20100118744A1 WIRELESS TRANSCEIVER SYSTEM FOR SUPPORTING DUAL MODE 有权
标题翻译：用于支持双模的无线收发系统
公开(公告)号：US20100118744A1
公开(公告)日：2010-05-13
申请号：US12447104
申请日：2007-05-03
申请人： Heon-Kook Kwon , Joon-Hyung Kim , Seong-Min Kim , Yun-Soo Ko , Jae-Ho Jung , Kwang-Chun Lee
发明人： Heon-Kook Kwon , Joon-Hyung Kim , Seong-Min Kim , Yun-Soo Ko , Jae-Ho Jung , Kwang-Chun Lee
IPC分类号： H04B7/005 , H04B7/00 , H04J3/00
CPC分类号： H04B1/406 , H04B1/52 , H04B1/54
摘要： 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.
摘要翻译：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. 发明申请

US20080137561A1 RF REPEATER USED FOR TIME DIVISION DUPLEXING AND METHOD THEREOF 审中-公开
标题翻译：用于时分双工的射频复用器及其方法
公开(公告)号：US20080137561A1
公开(公告)日：2008-06-12
申请号：US11951480
申请日：2007-12-06
申请人： Seong-Min KIM , Byung-Su KANG , Yun-soo KO , Heon-Kook KWON , Kwang-Chun LEE
发明人： Seong-Min KIM , Byung-Su KANG , Yun-soo KO , Heon-Kook KWON , Kwang-Chun LEE
IPC分类号： H04B7/14
CPC分类号： H04B7/15535
摘要： The present invention relates to an RF repeater used in a time division method, and a method thereof. An RF repeater according to an exemplary embodiment of the present invention receives a downlink signal that is to be transmitted from a base station to a mobile terminal, performs first automatic gain control on the downlink signal, and extracts gain information from the downlink signal on which the first automatic gain control has been performed, on the basis of gain variation information that is the gain information for the downlink signal. Then, the RF repeater performs second automatic gain control on the downlink signal on the basis of the extracted gain information, and performs a control operation such that the downlink signal on which the second automatic gain control has been performed is transmitted to the mobile terminal. According to the exemplary embodiment of the present invention, the RF repeater maintains the received uplink signal at the predetermined level or more by using a pilot signal of a subcarrier that is not allocated during the downlink period, regardless of the number of mobile terminals that are connected to the RF repeater. As a result, the RF repeater can efficiently perform automatic gain control on the uplink signal without performing separate signal analysis or control.
摘要翻译：本发明涉及用于时分方法的RF中继器及其方法。根据本发明的示例性实施例的RF中继器接收将从基站发送到移动终端的下行链路信号，对下行链路信号执行第一自动增益控制，并从下行链路信号中提取增益信息，已经基于作为下行链路信号的增益信息的增益变化信息来执行第一自动增益控制。然后，RF中继器基于所提取的增益信息对下行链路信号进行第二自动增益控制，并且执行控制操作，使得已经执行了第二自动增益控制的下行链路信号被发送到移动终端。根据本发明的示例性实施例，RF中继器通过使用在下行链路周期期间未分配的子载波的导频信号将接收到的上行链路信号保持在预定电平或更高级，而不管移动终端的数量如何连接到RF中继器。结果，RF中继器可以有效地对上行链路信号执行自动增益控制，而不进行单独的信号分析或控制。

4. 发明授权

US07612618B2 PLL apparatus for OFDM system having variable channel bands and operating method thereof 有权
标题翻译：具有可变信道频带的OFDM系统的PLL装置及其操作方法
公开(公告)号：US07612618B2
公开(公告)日：2009-11-03
申请号：US11925073
申请日：2007-10-26
申请人： Yun-Soo Ko , Seong-Min Kim , Kwang-Chun Lee
发明人： Yun-Soo Ko , Seong-Min Kim , Kwang-Chun Lee
IPC分类号： H03L7/00
CPC分类号： H03L7/107 , H03L7/18
摘要： 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.
摘要翻译：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。

5. 发明申请

US20090117867A1 SCALABLE BANDWIDTH SYSTEM AND METHOD OF CONTROLLING TUNABLE FILTER 审中-公开
标题翻译：可扩展带宽系统和控制滤波器的方法
公开(公告)号：US20090117867A1
公开(公告)日：2009-05-07
申请号：US12165989
申请日：2008-07-01
申请人： Yun Soo KO , Heon Kook KWON , Joon Hyung KIM , Seong-Min KIM , Kwang Chun LEE
发明人： Yun Soo KO , Heon Kook KWON , Joon Hyung KIM , Seong-Min KIM , Kwang Chun LEE
IPC分类号： H04B1/18
CPC分类号： H03H7/0161 , H03H2210/012 , H03H2210/015 , H03H2210/025 , H03H2210/036
摘要： The present invention relates to a scalable bandwidth system and a method of controlling a tunable filter. In the present invention, the scalable bandwidth system inputs, as a control signal of a tunable filter, a voltage corresponding to a section in which the capacitance according to an applied voltage is not practically changed for characteristics of varactor diodes, and inputs each control bit of the control signal to each varactor diode of the tunable filter to adjust the capacitance of each of the varactor diodes, and consequently adjusts the capacitance of the tunable filter by adding the capacitance of the varactor diodes.
摘要翻译：本发明涉及一种可扩展带宽系统和一种控制可调滤波器的方法。在本发明中，可扩展带宽系统作为可调谐滤波器的控制信号输入对应于根据施加电压的电容对于变容二极管的特性实际上不改变的部分的电压，并输入每个控制位控制信号到可调谐滤波器的每个变容二极管，以调整每个变容二极管的电容，从而通过增加变容二极管的电容来调节可调谐滤波器的电容。

6. 发明申请

US20080129391A1 PLL APPARATUS FOR OFDM SYSTEM HAVING VARIABLE CHANNEL BANDS AND OPERATING METHOD THEREOF 有权
标题翻译：具有可变通道带的OFDM系统的PLL装置及其操作方法
公开(公告)号：US20080129391A1
公开(公告)日：2008-06-05
申请号：US11925073
申请日：2007-10-26
申请人： Yun-Soo KO , Seong-Min KIM , Kwang-Chun LEE
发明人： Yun-Soo KO , Seong-Min KIM , Kwang-Chun LEE
IPC分类号： H03L7/085
CPC分类号： H03L7/107 , H03L7/18
摘要： 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.
摘要翻译：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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式