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21. 发明申请

US20070133658A1 Apparatus and method for estimating and correcting frequency offset in MB-OFDM UWB system using time frequency hopping 失效
标题翻译：在使用时频跳频的MB-OFDM UWB系统中估计和校正频偏的装置和方法
公开(公告)号：US20070133658A1
公开(公告)日：2007-06-14
申请号：US11634006
申请日：2006-12-05
申请人： Cheol-Ho Shin , Sung-Woo Choi , Sang-In Cho , Kyu-Min Kang , Sang-Sung Choi , Kwang-Roh Park
发明人： Cheol-Ho Shin , Sung-Woo Choi , Sang-In Cho , Kyu-Min Kang , Sang-Sung Choi , Kwang-Roh Park
IPC分类号： H04B1/00
CPC分类号： H04L27/2657 , H04B1/7143 , H04B1/7163 , H04B2001/7154 , H04L27/2676
摘要： Provided are an apparatus and method for estimating and correcting a frequency offset in a multiband-Orthogonal Frequency Division Multiplexing Ultra-Wideband system using a time frequency hopping. The method includes the steps of: calculating a tangent input having a first value (X) and a second value (Y) by using PS symbols transferred over same frequency band with respect to one of a plurality of frequency bands used for frequency hopping; calculating tan(X/Y) using the first value (X) and the second value (Y), and calculating an index corresponding to the value of tan(X/Y) from a look-up table created by reflecting a relative frequency offset with respect to a center frequency; calculating indexes representing frequency offsets estimated with respect to remaining frequency bands used for frequency hopping from the look-up table by using the calculated index; extracting an index of a numerical controlled oscillator according to correction positions with respect to a plurality of frequency bands by using the calculated indexes; and correcting the frequency offsets estimated using the extracted indexes according to time frequency patterns by using a numerical controlled oscillator table.
摘要翻译：提供了一种用于使用时间跳频估计和校正多频带 - 正交频分复用超宽带系统中的频率偏移的装置和方法。该方法包括以下步骤：通过使用相对于用于跳频的多个频带之一的相同频带传输的PS符号来计算具有第一值（X）和第二值（Y）的切线输入; 使用第一值（X）和第二值（Y）计算tan（X / Y），并且从通过反映相对频率偏移产生的查找表计算与tan（X / Y）的值相对应的指数相对于中心频率; 计算表示使用所计算的索引从查找表中跳频所使用的剩余频带估计的频率偏移的索引; 通过使用计算出的索引，根据关于多个频带的校正位置提取数控振荡器的索引; 以及通过使用数控振荡器表，根据时间频率模式校正使用所提取的索引估计的频率偏移。

22. 发明申请

US20050009490A1 Method for controlling power level of received signal in ultra wide band transmission system 失效
标题翻译：控制超宽带传输系统接收信号功率电平的方法
公开(公告)号：US20050009490A1
公开(公告)日：2005-01-13
申请号：US10841591
申请日：2004-05-06
申请人： Hyung-Soo Lee , Sang-In Cho , Kyu-Min Kang , Chang-Joo Kim
发明人： Hyung-Soo Lee , Sang-In Cho , Kyu-Min Kang , Chang-Joo Kim
IPC分类号： H04B7/26 , H03G3/30 , H04B1/69 , H04B7/005 , H03F3/45
CPC分类号： H04W52/52 , H03G3/3052 , H03G2201/103 , H03G2201/502 , H03G2201/702 , H04B1/71637
摘要： Disclosed is a method for controlling power level of received signal in an ultra wide band transmission system which uses multi frequency bands, and includes a pre-gain controller (PGC) and a voltage gain amplifier (VGA). The method for controlling a power level of a received signal includes the steps of: a) at the PGCs, detecting which multi frequency band is used in a transmitter of the transmission system; b) at the PGCs, obtaining the voltage gain owing to the discrepancy in the power levels of the received signals; and c) at the PGCs, compensating for the power loss based on the voltage gain.
摘要翻译：公开了一种在使用多频带的超宽带传输系统中控制接收信号的功率电平的方法，包括预增益控制器（PGC）和电压增益放大器（VGA）。用于控制接收信号的功率电平的方法包括以下步骤：a）在PGC检测在传输系统的发射机中使用哪个多频带; b）在PGC处，由于接收到的信号的功率电平的差异而获得电压增益; 和c）在PGC处，基于电压增益来补偿功率损耗。

23. 发明申请

US20130223575A1 METHOD AND DEVICE FOR SENSING FREQUENCY FOR OFDM SYSTEMS 有权
标题翻译： OFDM系统感测频率的方法和装置
公开(公告)号：US20130223575A1
公开(公告)日：2013-08-29
申请号：US13884175
申请日：2011-10-25
申请人： Sang In Cho , Kyu Min Kang
发明人： Sang In Cho , Kyu Min Kang
IPC分类号： H04L27/26
CPC分类号： H04L27/265 , H04L27/0006 , H04L27/2647
摘要： Provided is a frequency sensing method and apparatus in an orthogonal frequency division multiplexing (OFDM) system. Provided is a method of sensing a frequency of a received signal that is received from an outside in order to perform one of a plurality of radio communications. An OFDM apparatus may need to inspect a required frequency band before or after performing one of the plurality of radio communications, and to determine whether the frequency band is being used by another radio communication.
摘要翻译：提供了一种正交频分复用（OFDM）系统中的频率感测方法和装置。提供了一种感测从外部接收的接收信号的频率以便执行多个无线电通信之一的方法。 OFDM装置可能需要在执行多个无线电通信之一之前或之后检查所需的频带，并且确定频带是否被另一个无线电通信使用。

24. 发明申请

US20110130161A1 TERMINAL AND BASE STATION, AND FREQUENCY SENSING METHOD THEREOF 审中-公开
标题翻译：终端和基站及其频率感测方法
公开(公告)号：US20110130161A1
公开(公告)日：2011-06-02
申请号：US12873404
申请日：2010-09-01
申请人： Sang In CHO , Kyu-Min KANG , Heon Jin HONG
发明人： Sang In CHO , Kyu-Min KANG , Heon Jin HONG
IPC分类号： H04B1/10 , H04B1/16 , H04B7/00
CPC分类号： H04B1/1027
摘要： Provided are a terminal and a base station, and a frequency sensing method thereof. The terminal or the base station may filter a frequency band needing frequency sensing in the entire frequency band where the terminal or the base station may receive an input signal. It is possible to enhance a detection performance and rate of signals by applying frequency sensing to the filtered frequency band.
摘要翻译：提供一种终端和基站及其频率感测方法。终端或基站可以在终端或基站可以接收输入信号的整个频带中过滤需要频率感测的频带。可以通过对滤波后的频带应用频率感测来提高检测性能和信号速率。

25. 发明授权

US07953199B2 Synchronization error tracking device and method thereof 失效
标题翻译：同步误差跟踪装置及其方法
公开(公告)号：US07953199B2
公开(公告)日：2011-05-31
申请号：US12610604
申请日：2009-11-02
申请人： Kyu-Min Kang , Sang In Cho , Sung Woo Choi , Sangsung Choi
发明人： Kyu-Min Kang , Sang In Cho , Sung Woo Choi , Sangsung Choi
IPC分类号： H04L7/00 , H04L25/00 , H04L25/40
CPC分类号： H04B1/7183 , H04B1/7075
摘要： Provided is a synchronization error tracking device and method. The method and system estimates and corrects the synchronization error generated by time and frequency offsets during the data transmission interval and uses a module designed for initial synchronization or channel estimation without adding a new correlation operator. Further, a combining mark value and a synchronization position value acquired during the synchronization process are used.
摘要翻译：提供了一种同步误差跟踪装置和方法。该方法和系统估计并校正数据传输间隔期间由时间和频率偏移产生的同步误差，并使用设计用于初始同步或信道估计的模块，而不添加新的相关运算符。此外，使用在同步处理期间获取的组合标记值和同步位置值。

26. 发明授权

US07945227B2 Apparatus and method for controlling voltage gain in ultra wideband receiving apparatus 失效
标题翻译：用于控制超宽带接收装置中的电压增益的装置和方法
公开(公告)号：US07945227B2
公开(公告)日：2011-05-17
申请号：US11951392
申请日：2007-12-06
申请人： Kyu-Min Kang , Sang-In Cho , Sang-Sung Choi
发明人： Kyu-Min Kang , Sang-In Cho , Sang-Sung Choi
IPC分类号： H04B1/06 , H04K3/00
CPC分类号： H03G3/3052
摘要： Provided is an apparatus and method for controlling a voltage gain in an ultra wideband receiving apparatus. The apparatus includes a register for storing an Automatic Gain Control (AGC) value detected in a section where an AGC operation control signal is “ON”; and a voltage gain controller for generating a voltage gain control value by reading the AGC stored in the register during a section where a reception enable signal is “ON”, and transferring the generated voltage gain control value to a voltage gain amplifier.
摘要翻译：提供一种用于控制超宽带接收装置中的电压增益的装置和方法。该装置包括用于存储在AGC操作控制信号为“ON”的部分中检测到的自动增益控制（AGC）值的寄存器; 以及电压增益控制器，用于通过在接收使能信号为“接通”的部分期间读取存储在寄存器中的AGC，并将所生成的电压增益控制值传送到电压增益放大器来产生电压增益控制值。

27. 发明申请

US20080139152A1 APPARATUS AND METHOD FOR CONTROLLING VOLTAGE GAIN IN ULTRA WIDEBAND RECEIVING APPARATUS 失效
标题翻译：用于控制超宽带接收装置电压增益的装置和方法
公开(公告)号：US20080139152A1
公开(公告)日：2008-06-12
申请号：US11951392
申请日：2007-12-06
申请人： Kyu-Min KANG , Sang-In CHO , Sang-Sung CHOI
发明人： Kyu-Min KANG , Sang-In CHO , Sang-Sung CHOI
IPC分类号： H04B1/06
CPC分类号： H03G3/3052
摘要： Provided is an apparatus and method for controlling a voltage gain in an ultra wideband receiving apparatus. The apparatus includes a register for storing an Automatic Gain Control (AGC) value detected in a section where an AGC operation control signal is “ON”; and a voltage gain controller for generating a voltage gain control value by reading the AGC stored in the register during a section where a reception enable signal is “ON”, and transferring the generated voltage gain control value to a voltage gain amplifier.
摘要翻译：提供一种用于控制超宽带接收装置中的电压增益的装置和方法。该装置包括用于存储在AGC操作控制信号为“ON”的部分中检测到的自动增益控制（AGC）值的寄存器; 以及电压增益控制器，用于通过在接收使能信号为“接通”的部分期间读取存储在寄存器中的AGC，并将生成的电压增益控制值传送到电压增益放大器来产生电压增益控制值。

28. 发明申请

US20080071847A1 Method for Transforming Data by Look-Up Table 有权
标题翻译：通过查找表转换数据的方法
公开(公告)号：US20080071847A1
公开(公告)日：2008-03-20
申请号：US11576565
申请日：2005-11-02
申请人： Sang In Cho , Sang Sung Choi , Kwang Roh Park
发明人： Sang In Cho , Sang Sung Choi , Kwang Roh Park
IPC分类号： G06F17/14 , G06F7/38 , G06F7/52
CPC分类号： H04L27/263 , H04L27/265
摘要： Provided is a method for transforming data using a look-up table. The method includes the steps of: (a) mapping preprocessed input binary data to a constellation diagram divided into four quadrants to output a first complex number; (b) performing addition/subtraction operations between real numbers and between imaginary numbers with respect to the first complex number and a second complex number; and (c) reading a fourth complex from a look-up table in response to the first complex number, the second complex number and a third complex number, the look-up table outputting the fourth complex by performing a subtraction operation on multiplication results between real numbers and between imaginary numbers and an addition operation on multiplication results between the real numbers and the imaginary numbers with respect to the result value of the step (b) and the third complex number. Accordingly, it is possible to reduce the hardware size at the time of IFFT/FFT design and to provide a high-speed, low-power operation.
摘要翻译：提供了一种使用查找表来转换数据的方法。该方法包括以下步骤：（a）将预处理的输入二进制数据映射到分成四个象限的星座图，以输出第一个复数; （b）相对于第一复数和第二复数执行实数之间和虚数之间的加法/减法运算; 以及（c）响应于所述第一复数，所述第二复数和第三复数，从查找表读取第四复数，所述查找表通过对多个在实数和虚数之间，以及相对于步骤（b）和第三复数的结果值的实数和虚数之间的相乘结果的加法运算。因此，可以在IFFT / FFT设计时降低硬件尺寸并提供高速，低功率操作。

29. 发明申请

US20070133392A1 Method for adjusting FFT window positioning in MB-OFDM UWB system 失效
标题翻译：在MB-OFDM UWB系统中调整FFT窗口定位的方法
公开(公告)号：US20070133392A1
公开(公告)日：2007-06-14
申请号：US11635272
申请日：2006-12-07
申请人： Cheol-Ho Shin , Sung-Woo Choi , Sang-In Cho , Kyu-Min Kang , Sang-Sung Choi , Kwang-Roh Park
发明人： Cheol-Ho Shin , Sung-Woo Choi , Sang-In Cho , Kyu-Min Kang , Sang-Sung Choi , Kwang-Roh Park
IPC分类号： H04J11/00 , H04J1/00
CPC分类号： H04B1/7183 , H04L27/2605 , H04L27/265 , H04L27/2665
摘要： Provided is a method for adjusting Fast Fourier Transform (FFT) window positioning in a Multi Band Orthogonal Frequency Division Multiplexing Ultra-Wideband (MB-OFDM UWB) system. The method includes the steps of acquiring an initial FFT window position and a frequency hopping position, demodulating a received signal by using the initial FFT window position and the frequency hopping position acquired in the acquiring step, transmitting received data information to a Media Access Control (MAC) layer with a reception frame (RX frame) structure and judging at the MAC layer whether or not a packet error is occurred based on Frame Check Sequences (FCSs), and if no packet error is occurred, returning to the demodulating step, and if the packet error is occurred, changing a register map by using a predetermined interface line in a MAC-physical layer (MAC-PHY) interface to thereby adjust the FFT window position and the frequency hopping position, and then returning to the demodulating step.
摘要翻译：提供了一种用于在多频带正交频分复用超宽带（MB-OFDM UWB）系统中调整快速傅里叶变换（FFT）窗口定位的方法。该方法包括以下步骤：获取初始FFT窗口位置和跳频位置，通过使用在获取步骤中获取的初始FFT窗口位置和跳频位置解调接收信号，将接收的数据信息发送到介质访问控制（ MAC）层，并且在MAC层判断基于帧检查序列（FCS）是否发生分组错误，并且如果没有发生分组错误，则返回到解调步骤，并且如果发生分组错误，则通过使用MAC-物理层（MAC-PHY）接口中的预定接口线来改变寄存器映射，从而调整FFT窗口位置和跳频位置，然后返回到解调步骤。

30. 发明申请

US20130165136A1 SYSTEM AND METHOD FOR MANAGING RESOURCES IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：在通信系统中管理资源的系统和方法
公开(公告)号：US20130165136A1
公开(公告)日：2013-06-27
申请号：US13821736
申请日：2011-09-09
申请人： Kyu-Min Kang , Sang-In Cho , Hyunduk Kang , Heon-Jin Hong , Chang-Joo Kim
发明人： Kyu-Min Kang , Sang-In Cho , Hyunduk Kang , Heon-Jin Hong , Chang-Joo Kim
IPC分类号： H04W16/14
CPC分类号： H04W16/14
摘要： The present invention relates to a system and method for managing resources, which involve managing a plurality of frequency resources in a communication system including a plurality of systems not having rights to use a first frequency band. The system and method of the present invention involve: defining, upon the detection of a frequency band available to the plurality of systems from the first frequency band, an interface between objects in the available frequency band so as to enable coexistence and frequency-sharing among the plurality of systems in the available frequency band; defining a primitive of a service access point (SAP) which supports the transceiving of information belonging to the plurality of systems between the objects through the interface; enabling the objects to transceive information belonging to the plurality of systems through the interface using the primitive of the service access point; and enabling the plurality of systems to coexist and share a frequency in the available frequency band to use the available frequency band by transceiving the information belonging to the plurality of systems.
摘要翻译：本发明涉及一种用于管理资源的系统和方法，其涉及在包括不具有使用第一频带的权利的多个系统的通信系统中管理多个频率资源。本发明的系统和方法包括：在检测到来自第一频带的多个系统可用的频带时，定义可用频带中的对象之间的接口，以便能够在可用频带内的共享和频率共享在可用频带中的多个系统; 定义服务接入点（SAP）的原语，其支持通过接口在对象之间收集属于所述多个系统的信息; 使所述对象能够使用所述服务接入点的原语通过所述接口收发属于所述多个系统的信息; 并且使得所述多个系统能够共享和共享可用频带中的频率，以通过收发属于所述多个系统的信息来使用所述可用频带。

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