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11. 发明申请

US20070149242A1 Method and apparatus for canceling neighbor cell interference signals in an orthogonal frequency division multiple access system 审中-公开
标题翻译：用于在正交频分多址系统中消除相邻小区干扰信号的方法和装置
公开(公告)号：US20070149242A1
公开(公告)日：2007-06-28
申请号：US11633067
申请日：2006-12-04
申请人： Sang-Hyo Kim , Young-Mo Gu , Sung-Soo Kim , Dong-Woon Jung
发明人： Sang-Hyo Kim , Young-Mo Gu , Sung-Soo Kim , Dong-Woon Jung
IPC分类号： H04B7/00
CPC分类号： H04L27/2647 , H04J11/004 , H04J11/005 , H04L1/0055 , H04L1/08 , H04L5/023
摘要： A method and apparatus are provided where a neighbor cell interference signal is canceled upon receiving a signal transmitted from a serving base station (BS) in a receiver of an Orthogonal Frequency Division Multiple Access (OFDMA) system. The interference signals are detected from signals received from neighbor BSs and a serving BS. The strength of the detected interference signals is measures, and a determination is made whether the measured strength is higher than a threshold value. A list of neighbor BSs satisfying the determination result is reordered, and interference signals in order of the reordered neighbor BSs are selected and detected. An interference/noise variance for the detected interference signal is calculated and normalized. The normalized interference signal is decoded and regenerated, and the regenerated interference signal is subtracted from the received signal.
摘要翻译：提供一种方法和装置，其中在接收从正交频分多址（OFDMA）系统的接收机中的服务基站（BS）发送的信号时，相邻小区干扰信号被消除。从从邻近BS和服务BS接收的信号中检测干扰信号。检测到的干扰信号的强度是措施，并且确定测量的强度是否高于阈值。重新排列满足确定结果的相邻BS的列表，并且选择并检测重新排序的相邻BS的顺序的干扰信号。对所检测的干扰信号的干扰/噪声方差进行计算和归一化。对归一化的干扰信号进行解码和再生，从接收信号中减去再生的干扰信号。

12. 发明授权

US07822153B2 Automatic gain control apparatus and method in an orthogonal frequency division multiple access system 有权
标题翻译：一种正交频分多址系统中的自动增益控制装置及方法
公开(公告)号：US07822153B2
公开(公告)日：2010-10-26
申请号：US11348345
申请日：2006-02-07
申请人： Yong-Chul Song , Young-Mo Gu , Min-Goo Kim
发明人： Yong-Chul Song , Young-Mo Gu , Min-Goo Kim
IPC分类号： H04L27/06
CPC分类号： H03G3/3063
摘要： An automatic gain control (AGC) apparatus of a wireless mobile terminal, and method, in an orthogonal frequency division multiple access (OFDMA) system. A gain amplifier controls an amplification gain of received analog symbols. An analog-to-digital converter converts the received analog symbols into a digital signal. A fast Fourier transform (FFT) unit converts the digital signal into a frequency-domain signal. A power measurer measures power in the frequency domain in units of sub-carriers. A sub-carrier power accumulator detects a sub-carrier carrying a signal, and accumulates its power value. A sub-carrier average power measurer estimates an average power value transmitted per sub-carrier from the accumulated power value. A control means compares the estimated average power value with a reference power value, and generates a control signal used for controlling a gain of the gain amplifier according to the comparison result.
摘要翻译：一种在正交频分多址（OFDMA）系统中的无线移动终端的自动增益控制（AGC）装置和方法。增益放大器控制接收的模拟符号的放大增益。模数转换器将接收的模拟符号转换为数字信号。快速傅里叶变换（FFT）单元将数字信号转换成频域信号。功率测量器以子载波为单位测量频域的功率。子载波功率累加器检测携带信号的子载波，并累加其功率值。子载波平均功率测量器估计从累积功率值发送的每个副载波的平均功率值。控制装置将估计的平均功率值与参考功率值进行比较，并且根据比较结果产生用于控制增益放大器的增益的控制信号。

13. 发明申请

US20070036064A1 Apparatus and method for estimating CINR in an OFDM communication system 审中-公开
标题翻译：用于在OFDM通信系统中估计CINR的装置和方法
公开(公告)号：US20070036064A1
公开(公告)日：2007-02-15
申请号：US11500957
申请日：2006-08-09
申请人： Seong-Wook Song , Young-Mo Gu
发明人： Seong-Wook Song , Young-Mo Gu
IPC分类号： H04J11/00
CPC分类号： H04L27/2647 , H04B17/336 , H04L1/0003 , H04L1/0026 , H04L1/20 , H04L25/0212
摘要： A method and an apparatus are provided for estimating a carrier-to-interference and noise ratio (CINR) in an orthogonal frequency division multiplexing (OFDM) communication system. The apparatus and method include a receiver for receiving a signal carried by a transmission sub-carrier including a guard band allocated to a region. Further, an estimator is provided for removing a signal component dispersed by the guard band included in a noise component of the received signal, and for estimating a CINR by calculating signal component power and interference and noise component power from the received signal from which the dispersed signal component is removed.
摘要翻译：提供了一种用于估计正交频分复用（OFDM）通信系统中的载波与干扰和噪声比（CINR）的方法和装置。该装置和方法包括：接收机，用于接收包括分配给区域的保护带的传输子载波承载的信号。此外，提供了一种估计器，用于去除由接收信号的噪声分量中包括的保护频带分散的信号分量，并且用于通过从接收信号中计算信号分量功率和干扰噪声分量功率来估计CINR，信号分量被去除。

14. 发明申请

US20060215606A1 Apparatus and method for allocating frequency resources in mobile communication system 有权
标题翻译：移动通信系统中频率资源分配的装置和方法
公开(公告)号：US20060215606A1
公开(公告)日：2006-09-28
申请号：US11390126
申请日：2006-03-27
申请人： Hae-Dong Yeon , Yun-Sang Park , Min-Goo Kim , Bong-Gee Song , Young-Mo Gu , Jae-Yong Lee , Sung-Soo Kim , Sang-Hyuck Ha
发明人： Hae-Dong Yeon , Yun-Sang Park , Min-Goo Kim , Bong-Gee Song , Young-Mo Gu , Jae-Yong Lee , Sung-Soo Kim , Sang-Hyuck Ha
IPC分类号： H04Q7/00
CPC分类号： H04W72/0453
摘要： Disclosed is an apparatus and a method for effectively allocating frequency resources in a mobile communication system. The method includes: determining a first offset of a preset frequency band from among all frequency bands, determining a second offset corresponding to a symbol unit in the preset frequency band, and allocating frequency resources to data, the frequency resources corresponding to a sum of the first offset and the second offset.
摘要翻译：公开了一种在移动通信系统中有效地分配频率资源的装置和方法。该方法包括：从所有频带中确定预设频带的第一偏移，确定与预设频带中的符号单元相对应的第二偏移，并将频率资源分配给数据，频率资源对应于第一偏移和第二偏移。

15. 发明申请

US20060120266A1 Apparatus and method for processing digital signal in an OFDMA wireless communication system 失效
公开(公告)号：US20060120266A1
公开(公告)日：2006-06-08
申请号：US11274900
申请日：2005-11-16
申请人： Seong-Wook Song , Yong-Chul Song , Young-Mo Gu , Min-Goo Kim
发明人： Seong-Wook Song , Yong-Chul Song , Young-Mo Gu , Min-Goo Kim
IPC分类号： H04J11/00
CPC分类号： H04L27/263 , H04L27/2608
摘要： An apparatus and method is provided to process a digital signal in an orthogonal frequency division multiple access (OFDMA) wireless communication system. In the apparatus, a memory stores the number of subcarriers allocated to a mobile terminal and stores an inverse discrete Fourier transform (IDFT) coefficient. A controller outputs a mode selection signal indicating a transmission mode or a reception mode. An inverse fast Fourier transform (IFFT) block multiplies a first result obtained by determining a bitwidth for the IDFT coefficient according to the number of subcarriers by a second result obtained by determining a bitwidth for data according to the number of subcarriers.

16. 发明申请

US20050201270A1 Method and apparatus for transmitting and receiving pilot signals in an orthogonal frequency division multiple access system 审中-公开
标题翻译：用于在正交频分多址系统中发送和接收导频信号的方法和装置
公开(公告)号：US20050201270A1
公开(公告)日：2005-09-15
申请号：US11078620
申请日：2005-03-14
申请人： Seong-Wook Song , Young-Mo Gu , Min-Goo Kim
发明人： Seong-Wook Song , Young-Mo Gu , Min-Goo Kim
IPC分类号： H04J11/00 , H04B7/216
CPC分类号： H04L27/2613 , H04L5/0007 , H04L5/005
摘要： A method and apparatus are provided for transmitting and receiving pilot signals to estimate link gains and channels of neighboring base stations in an orthogonal frequency division multiple access (OFDMA) system. Each base station cyclically shifts a frequency domain signal of the same pseudo random (PN) code by a predetermined multiple of a time interval between pilots. A mobile terminal cyclically shifts a time domain pilot signal by a time interval between pilots associated with a base station with which the mobile terminal currently communicates in a reverse direction of cyclic shift of the base station, and estimates a channel and a link gain of the base station.
摘要翻译：提供一种用于发送和接收导频信号以估计正交频分多址（OFDMA）系统中相邻基站的链路增益和信道的方法和装置。每个基站将相同伪随机（PN）码的频域信号周期性地将导频之间的时间间隔的预定倍数移位。移动终端将时域导频信号循环移位与移动终端当前在基站的循环移位的相反方向上与之通信的基站相关联的导频之间的时间间隔，并估计基站的信道和链路增益基站。

17. 发明授权

US07747931B2 Apparatus and method for decoding burst in an OFDMA mobile communication system 有权
标题翻译：用于在OFDMA移动通信系统中解码突发的装置和方法
公开(公告)号：US07747931B2
公开(公告)日：2010-06-29
申请号：US11519779
申请日：2006-09-13
申请人： Han-Ju Kim , Young-Mo Gu , Dong-Woon Jung , Min-Goo Kim
发明人： Han-Ju Kim , Young-Mo Gu , Dong-Woon Jung , Min-Goo Kim
IPC分类号： H03M13/03
CPC分类号： H04L27/2647 , H04L1/0054 , H04L1/0059 , H04L1/0071 , H04L1/0072 , H04L1/08 , H04L5/023
摘要： A decoding apparatus in an Orthogonal Frequency Division Multiple Access (OFDMA) mobile communication system is provided. In the apparatus comprises, a first combiner performs first combining on an input burst a first number of times. A deinterleaver deinterleaves an output of the first combiner and outputs a burst having a repeated structure. A second combiner performs second combining on the burst having the repeated structure a second number of times. A decoder decodes the combined burst. A signal detector stores a second internal memory state value of the decoder for an instance where a first decoded bit is extracted from the decoded data, stores a second internal memory state value of the decoder for an instance where a last decoded bit is extracted from the decoded data, compares the first and second stored internal memory state values of the decoder, and sets a burst quality indicator (BQI) according to the comparison result.
摘要翻译：提供了一种正交频分多址（OFDMA）移动通信系统中的解码装置。在该装置中，第一组合器在输入突发上执行第一次合并。解交织器对第一组合器的输出进行解交织并输出具有重复结构的脉冲串。第二组合器在具有重复结构的脉冲串上执行第二次组合第二次。解码器解码组合突发。信号检测器存储解码器的第二内部存储器状态值，用于从解码数据中提取第一解码位的情况，存储解码器的第二内部存储器状态值，用于从其中提取最后一个解码位的情况解码数据，比较解码器的第一和第二存储的内部存储器状态值，并根据比较结果设置突发质量指示符（BQI）。

18. 发明授权

US07502311B2 Method and apparatus for detecting a cell in an orthogonal frequency division multiple access system 有权
标题翻译：用于检测正交频分多址系统中的小区的方法和装置
公开(公告)号：US07502311B2
公开(公告)日：2009-03-10
申请号：US11108071
申请日：2005-04-18
申请人： Seong-Wook Song , Young-Mo Gu , Min-Goo Kim
发明人： Seong-Wook Song , Young-Mo Gu , Min-Goo Kim
IPC分类号： H04J11/00
CPC分类号： H04B1/7083 , H04L5/0016 , H04L25/0216 , H04L27/2647
摘要： An apparatus and method are provided for detecting via a mobile station a cell in which the mobile station is located in order to initiate communication in an Orthogonal Frequency Division Multiple Access (OFDMA) system including a plurality of base stations transmitting signal with a pseudo-random noise (PN) code to the mobile station. The apparatus and method include receiving the signal from the base station and performing fast Fourier transform (FFT) on the received signal; generating a PN code for comparison with a base station's PN code included in the signal; and detecting a cell where the mobile station is located by searching for a PN code synchronized in the FFT-processed signal using the generated PN code.
摘要翻译：提供了一种装置和方法，用于经由移动台检测移动台所在的小区，以便在包括多个基站的正交频分多址（OFDMA）系统中发起通信，所述正交频分多址（OFDMA）系统发送具有伪随机信号的信号噪声（PN）码到移动台。该装置和方法包括从基站接收信号并对接收到的信号执行快速傅里叶变换（FFT）; 生成用于与包括在信号中的基站的PN码进行比较的PN码; 以及使用所生成的PN码，通过搜索在经FFT处理的信号中同步的PN码来检测移动站所在的小区。

19. 发明申请

US20060256885A1 Apparatus and method for estimating carrier-to-interference-and-noise ratio in an orthogonal frequency division multiplexing system 有权
标题翻译：用于估计正交频分复用系统中的载波与干扰和噪声比的装置和方法
公开(公告)号：US20060256885A1
公开(公告)日：2006-11-16
申请号：US11393000
申请日：2006-03-30
申请人： Seong-Wook Song , Jae-Hwan Chang , Young-Mo Gu
发明人： Seong-Wook Song , Jae-Hwan Chang , Young-Mo Gu
IPC分类号： H04K1/10 , H04B1/10
CPC分类号： H04L27/2601 , H04B1/1027 , H04B17/345 , H04L25/0206
摘要： An apparatus and method for estimating a carrier-to-interference-and-noise ratio (CINR) of a received signal in an orthogonal frequency division multiplexing (OFDM) system are provided. A band-pass filter attenuates a signal region of the received signal and passes a signal in a noise region. A first power calculator calculates interference and noise power of the noise-region signal received from the band-pass filter. A second power calculator calculates total received power of the received signal. A ratio calculator calculates a CINR based on the interference and noise power, and the total received power.
摘要翻译：提供了一种用于在正交频分复用（OFDM）系统中估计接收信号的载波与干扰和噪声比（CINR）的装置和方法。带通滤波器衰减接收信号的信号区域并使噪声区域中的信号通过。第一功率计算器计算从带通滤波器接收的噪声区域信号的干扰和噪声功率。第二功率计算器计算接收信号的总接收功率。比率计算器基于干扰和噪声功率以及总接收功率来计算CINR。

20. 发明申请

US20050160347A1 Apparatus and method for generating and decoding forward error correction codes having variable rate in a high-rate wireless data communication system 有权
标题翻译：用于在高速率无线数据通信系统中产生和解码具有可变速率的前向纠错码的装置和方法
公开(公告)号：US20050160347A1
公开(公告)日：2005-07-21
申请号：US11038183
申请日：2005-01-21
申请人： Min-Goo Kim , Sang-Hyuck Ha , Young-Mo Gu
发明人： Min-Goo Kim , Sang-Hyuck Ha , Young-Mo Gu
IPC分类号： H03M13/37 , H03M13/03 , H04L1/00 , H04L5/02 , H04L25/497
CPC分类号： H04L1/0066 , H03M13/271 , H03M13/2714 , H03M13/2957 , H03M13/6356 , H03M13/6362 , H04L1/0068 , H04L5/023 , H04L25/497
摘要： An apparatus for generating Quasi-Complementary Duo-Binary Turbo Codes (QC-DBTC). The apparatus includes a QC-DBTC encoder which receives an information symbol stream and generates a plurality of systematic symbol streams and a plurality of parity symbol streams according to a given code rate. The apparatus further includes a quad-symbol mapper which quad-maps the systematic symbol streams to one symbol stream, a channel interleaver which independently interleaves the quad-mapped systematic symbol stream and the parity symbol streams, quad-demaps the quad-mapped systematic symbol stream, interlaces symbols in parity symbol streams, and serial-concatenates the quad-demapped systematic symbol stream to the interlaced parity symbol streams. A duo-binary turbo code generator is further provided to repeat the serial-concatenated symbol stream, and select a predetermined number of symbols from the repeated symbol stream according to a code rate and selection information, thereby generating QC-DBTC codes.
摘要翻译：一种用于产生准互补二进制Turbo码（QC-DBTC）的装置。该装置包括QC-DBTC编码器，其接收信息符号流，并根据给定的码率产生多个系统符号流和多个奇偶校验符号流。该装置还包括将系统符号流四维映射到一个符号流的四符号映射器，独立地交错四映射系统符号流和奇偶校验符号流的信道交织器，将四映射系统符号流，在奇偶校验符号流中交织符号，并将四次映射映射的系统符号流串行连接到隔行扫描奇偶校验符号流。进一步提供二进制二进制turbo码发生器以重复串联连接的符号流，并根据码率和选择信息从重复符号流中选择预定数量的码元，由此产生QC-DBTC码。

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