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1. 发明申请

US20070094563A1 Method and apparatus for controlling error using reserved bits 审中-公开
标题翻译：使用保留位控制错误的方法和装置
公开(公告)号：US20070094563A1
公开(公告)日：2007-04-26
申请号：US11518307
申请日：2006-09-11
申请人： Hae-sik Kim , Jun-jin Kong , Jae-ho Roh
发明人： Hae-sik Kim , Jun-jin Kong , Jae-ho Roh
IPC分类号： H04L1/00 , H03M13/00 , G08C25/00 , G06F11/00 , G06F11/30
CPC分类号： H04L1/20 , H04L1/0009 , H04L1/0045 , H04L1/208
摘要： An apparatus for controlling an error using reserved bits including a mask indicator a pre-decoder and a decoder. The mask indicator is operable to provide mask data. The pre-decoder is operable to mask reserved bits of received data using the mask data. The decoder is operable to decode the pre-decoded received data.
摘要翻译：一种使用包括掩码指示符，预解码器和解码器的保留位来控制错误的装置。掩模指示器可操作以提供掩模数据。预解码器可操作以使用掩码数据来屏蔽接收数据的保留位。解码器可操作以对预解码的接收数据进行解码。

2. 发明申请

US20070081532A1 Data packet and data packet constructing method using reserved bits 审中-公开
标题翻译：使用保留位的数据包和数据包构造方法
公开(公告)号：US20070081532A1
公开(公告)日：2007-04-12
申请号：US11526582
申请日：2006-09-26
申请人： Hae-sik Kim , Jun-jin Kong , Jae-ho Roh
发明人： Hae-sik Kim , Jun-jin Kong , Jae-ho Roh
IPC分类号： H04L12/56 , H04J3/24
CPC分类号： H04B1/7176
摘要： A method of constructing a data packet, including constructing a PLCP (physical layer convergence protocol) header including first, second, and third tail bits and constructing last 2 bits of reserved bits of a PHY (physical layer) header as the first tail bits.
摘要翻译：一种构建数据分组的方法，包括构造包括第一，第二和第三尾比特的PLCP（物理层汇聚协议）头部，并且将PHY（物理层）头部的保留比特的最后2比特作为第一尾比特。

3. 发明授权

US07848437B2 Sub-carrier diversity method on multi-band orthogonal-frequency-division-multiplexing symbol 有权
标题翻译：多载波正交频分复用符号的子载波分集方法
公开(公告)号：US07848437B2
公开(公告)日：2010-12-07
申请号：US11641075
申请日：2006-12-19
申请人： Hae-sik Kim , Jae-ho Roh
发明人： Hae-sik Kim , Jae-ho Roh
IPC分类号： H04K1/10
CPC分类号： H04L5/023 , H04B1/713
摘要： A sub-carrier diversity method on an MB-OFDM (multi-band orthogonal-frequency-division-multiplexing) system repeatedly transmitting an identical frequency band of an identical symbol, including: setting a value of a TDS (time domain spreading) of sub-carriers depending on a transmission rate; and shifting the positions of the sub-carriers in a predetermined unit so that the sub-carriers diverge from one band to another.
摘要翻译：一种MB-OFDM（多频带正交频分复用）系统的副载波分集方法，其重复地发送相同符号的相同频带，包括：设定子载波TDS（时域扩频）的值 - 载波取决于传输速率; 并以预定的单位移动子载波的位置，使得子载波从一个频带发散到另一个频带。

4. 发明授权

US08054816B2 Method for hopping frequency of orthogonal-frequency-division-multiplexing symbol 失效
标题翻译：正交频分复用符号跳频的方法
公开(公告)号：US08054816B2
公开(公告)日：2011-11-08
申请号：US11637766
申请日：2006-12-13
申请人： Hae-sik Kim , Jae-ho Roh
发明人： Hae-sik Kim , Jae-ho Roh
IPC分类号： H04B7/212
CPC分类号： H04B1/7143 , H04L5/0007 , H04L5/0048
摘要： Provided is a method for hopping frequencies of an OFDM (orthogonal-frequency-division-multiplexing) symbol, including: receiving an OFDM symbol comprising mapping information as to a type of disposing sub-carriers of the OFDM symbol, a frequency hopping pattern, and positions of pilots; and mapping the type, the frequency hopping pattern, and the positions of the pilots based on the mapping information.
摘要翻译：提供了一种用于OFDM（正交频分复用）符号的频率跳频的方法，包括：接收包括关于OFDM符号的配置子载波的类型的映射信息的OFDM符号，跳频模式和飞行员职位; 并且基于映射信息映射类型，跳频图案和导频的位置。

5. 发明申请

US20070147526A1 Sub-carrier diversity method on multi-band orthogonal-frequency-division-multiplexing symbol 有权
标题翻译：多载波正交频分复用符号的子载波分集方法
公开(公告)号：US20070147526A1
公开(公告)日：2007-06-28
申请号：US11641075
申请日：2006-12-19
申请人： Hae-sik Kim , Jae-ho Roh
发明人： Hae-sik Kim , Jae-ho Roh
IPC分类号： H04K1/10
CPC分类号： H04L5/023 , H04B1/713
摘要： A sub-carrier diversity method on an MB-OFDM (multi-band orthogonal-frequency-division-multiplexing) system repeatedly transmitting an identical frequency band of an identical symbol, including: setting a value of a TDS (time domain spreading) of sub-carriers depending on a transmission rate; and shifting the positions of the sub-carriers in a predetermined unit so that the sub-carriers diverge from one band to another.
摘要翻译：一种MB-OFDM（多频带正交频分复用）系统的副载波分集方法，其重复地发送相同符号的相同频带，包括：设定子载波TDS（时域扩频）的值 - 载波取决于传输速率; 并以预定的单位移动子载波的位置，使得子载波从一个频带发散到另一个频带。

6. 发明申请

US20070147228A1 Method for hopping frequency of orthogonal-frequency-division-multiplexing symbol 失效
标题翻译：正交频分复用符号跳频的方法
公开(公告)号：US20070147228A1
公开(公告)日：2007-06-28
申请号：US11637766
申请日：2006-12-13
申请人： Hae-sik Kim , Jae-ho Roh
发明人： Hae-sik Kim , Jae-ho Roh
IPC分类号： H04J11/00
CPC分类号： H04B1/7143 , H04L5/0007 , H04L5/0048
摘要： Provided is a method for hopping frequencies of an OFDM (orthogonal-frequency-division-multiplexing) symbol, including: receiving an OFDM symbol comprising mapping information as to a type of disposing sub-carriers of the OFDM symbol, a frequency hopping pattern, and positions of pilots; and mapping the type, the frequency hopping pattern, and the positions of the pilots based on the mapping information.
摘要翻译：提供了一种用于OFDM（正交频分复用）符号的频率跳频的方法，包括：接收包括关于OFDM符号的配置子载波的类型的映射信息的OFDM符号，跳频模式和飞行员职位; 并且基于映射信息映射类型，跳频图案和导频的位置。

7. 发明申请

US20070019763A1 Sampling frequency offset estimation apparatus and method for OFDM system 有权
标题翻译： OFDM系统的采样频偏估计装置及方法
公开(公告)号：US20070019763A1
公开(公告)日：2007-01-25
申请号：US11488696
申请日：2006-07-19
申请人： Yun-young Kim , Jae-ho Roh
发明人： Yun-young Kim , Jae-ho Roh
IPC分类号： H03D1/04 , H04L7/00
CPC分类号： H04L27/2675 , H04L27/2657 , H04L27/2679
摘要： A sampling frequency offset estimation apparatus and method to be applied to an OFDM (orthogonal frequency division multiplexing) system are provided. The apparatus includes an ADC (analog-to-digital converter) sampling a received signal based on a predetermined sampling frequency; a FFT (Fast Fourier Transform) unit transforming the sampled received signal into a frequency domain; a phase calculator calculating phase shifts of pilot subcarriers of the sampled received signal which has been transformed into the frequency domain; a determiner calculating phase shift reaching times at which samples of the pilot subcarriers shift due to the phase shift; a time offset calculator calculating a sampling time offset using the pilot subcarriers, and a frequency offset calculator calculating a sampling frequency offset based on the phase shift reaching times and the sampling time offset.
摘要翻译：提供了一种应用于OFDM（正交频分复用）系统的采样频率偏移估计装置和方法。该装置包括基于预定采样频率对接收信号进行采样的ADC（模拟 - 数字转换器）; FFT（快速傅立叶变换）单元将采样的接收信号变换为频域; 计算已经被变换为频域的采样接收信号的导频子载波的相移; 一个确定器计算导频子载波的采样由于相移而移位的相移达到时间; 时间偏移计算器，使用导频子载波计算采样时间偏移;以及频率偏移计算器，基于相移到达时间和采样时间偏移来计算采样频率偏移。

8. 发明申请

US20060140314A1 Signal acquisition apparatus and method for reducing false alarm rate 失效
公开(公告)号：US20060140314A1
公开(公告)日：2006-06-29
申请号：US11315120
申请日：2005-12-23
申请人： Yun-young Kim , Jae-hyun Koo , Yeon-gon Cho , Jae-ho Roh
发明人： Yun-young Kim , Jae-hyun Koo , Yeon-gon Cho , Jae-ho Roh
IPC分类号： H04L27/06
CPC分类号： H04L27/2656 , H04B1/70755 , H04B1/7077 , H04B1/7093 , H04L7/042 , H04L27/2675
摘要： A signal acquisition apparatus and method for reducing a false alarm rate are disclosed. The apparatus includes a comparator for detecting a first peak by comparing a correlation value of a received signal with a first threshold and detecting second peaks in a sample interval of the detected first peak based on a second threshold which is different from the first threshold. Thus, a signal is acquired based on a number of the detected second peaks. Accordingly, the false alarm rate due to the noise can be reduced while the detection probability is maintained even at a high SNR.

9. 发明申请

US20050271154A1 System for allocating radio resources in multiband OFDM system 审中-公开
标题翻译：用于在多频带OFDM系统中分配无线电资源的系统
公开(公告)号：US20050271154A1
公开(公告)日：2005-12-08
申请号：US11147162
申请日：2005-06-08
申请人： Jae-ho Roh , Jae-hyun Koo , Jae-Min Ahn , Min-joong Rim , Sung-hyun Chung
发明人： Jae-ho Roh , Jae-hyun Koo , Jae-Min Ahn , Min-joong Rim , Sung-hyun Chung
IPC分类号： H04L1/08 , H04J11/00 , H04K1/10 , H04L27/26 , H04L27/28 , H04W16/00
CPC分类号： H04L1/08 , H04K1/04 , H04K1/10 , H04L5/0046
摘要： A method for seamlessly receiving a symbol from a transmitting end at a receiving end even when error occurs in a certain radio resource of a multiband OFDM system that transmits a same symbol at least two times. The multiband OFDM system includes a transmitting end selecting two radio resources from at least three radio resources and consecutively transmitting a symbol using the selected radio resources, and a receiving end receiving the symbol from the transmitting end.
摘要翻译：即使发送至少两次发送相同符号的多频带OFDM系统的某个无线资源发生错误，也可以在接收端从发送端无缝地接收符号的方法。多频带OFDM系统包括从至少三个无线电资源中选择两个无线电资源并使用所选择的无线电资源连续发送符号的发送端，以及从发送端接收该符号的接收端。

10. 发明授权

US07702024B2 Sampling frequency offset estimation apparatus and method for OFDM system 有权
标题翻译： OFDM系统的采样频偏估计装置及方法
公开(公告)号：US07702024B2
公开(公告)日：2010-04-20
申请号：US11488696
申请日：2006-07-19
申请人： Yun-young Kim , Jae-ho Roh
发明人： Yun-young Kim , Jae-ho Roh
IPC分类号： H04K1/10
CPC分类号： H04L27/2675 , H04L27/2657 , H04L27/2679
摘要： A sampling frequency offset estimation apparatus and method to be applied to an OFDM (orthogonal frequency division multiplexing) system are provided. The apparatus includes an ADC (analog-to-digital converter) sampling a received signal based on a predetermined sampling frequency; a FFT (Fast Fourier Transform) unit transforming the sampled received signal into a frequency domain; a phase calculator calculating phase shifts of pilot subcarriers of the sampled received signal which has been transformed into the frequency domain; a determiner calculating phase shift reaching times at which samples of the pilot subcarriers shift due to the phase shift; a time offset calculator calculating a sampling time offset using the pilot subcarriers, and a frequency offset calculator calculating a sampling frequency offset based on the phase shift reaching times and the sampling time offset.
摘要翻译：提供了一种应用于OFDM（正交频分复用）系统的采样频率偏移估计装置和方法。该装置包括基于预定采样频率对接收信号进行采样的ADC（模拟 - 数字转换器）; FFT（快速傅立叶变换）单元将采样的接收信号变换为频域; 计算已经被变换为频域的采样接收信号的导频子载波的相移; 一个确定器计算导频子载波的采样由于相移而移位的相移达到时间; 时间偏移计算器，使用导频子载波计算采样时间偏移;以及频率偏移计算器，基于相移到达时间和采样时间偏移来计算采样频率偏移。

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