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31. 发明申请

US20070133391A1 Apparatus and method for carrier frequency synchronization in an OFDM system 有权
标题翻译： OFDM系统中载波频率同步的装置和方法
公开(公告)号：US20070133391A1
公开(公告)日：2007-06-14
申请号：US11605484
申请日：2006-11-29
申请人： Hee-Jin Roh , Su-Jin Yoon , Min-Goo Kim
发明人： Hee-Jin Roh , Su-Jin Yoon , Min-Goo Kim
IPC分类号： H04J11/00 , H04J1/00
CPC分类号： H04L27/2675 , H04L27/2659 , H04L27/2672 , H04L27/2684 , H04L27/2688
摘要： An apparatus and method for carrier frequency synchronization in an Orthogonal Frequency Division Multiplexing (OFDM) system are provided for correcting an initial carrier frequency offset in the OFDM system. A metric generator for frequency estimation performs a first accumulation process for a value computed by multiplying a Phase Reference Symbol (PRS) generated from a reception stage by a Fast Fourier Transform (FFT) output signal for an OFDM symbol in a PRS position within a frame, acquires a differential symbol from a product of adjacent FFT output symbols, performs a second accumulation process for a real part extracted from the differential symbol, and outputs a metric value for the frequency estimation. A maximal value-related index generator compares metric values for initial frequency estimation within a predetermined frequency offset estimation range, and selects and outputs a maximal metric value as a frequency offset estimate.
摘要翻译：提供了一种用于正交频分复用（OFDM）系统中的载波频率同步的装置和方法，用于校正OFDM系统中的初始载波频率偏移。用于频率估计的度量发生器对通过将从接收级产生的相位参考符号（PRS）乘以帧内的PRS位置中的OFDM符号的快速傅立叶变换（FFT）输出信号而计算的值进行第一累积处理从相邻FFT输出符号的乘积获取差分符号，对从差分符号提取的实部执行第二累积处理，并输出用于频率估计的度量值。最大值相关索引发生器将预定频率偏移估计范围内的初始频率估计的度量值进行比较，并且选择并输出最大度量值作为频率偏移估计。

32. 发明申请

US20070133699A1 Apparatus and method for recovering frequency in an orthogonal frequency division multiplexing system 有权
标题翻译：在正交频分复用系统中恢复频率的装置和方法
公开(公告)号：US20070133699A1
公开(公告)日：2007-06-14
申请号：US11606353
申请日：2006-11-30
申请人： Hee-Jin Roh , Su-Jin Yoon , Min-Goo Kim
发明人： Hee-Jin Roh , Su-Jin Yoon , Min-Goo Kim
IPC分类号： H04K1/10
CPC分类号： H04L27/266 , H04L27/2659 , H04L27/2675 , H04L27/2686
摘要： An apparatus and method for recovering a carrier frequency of a received signal using a predefined symbol in an OFDM system is provided. A maximum value detector detects at least three values and their corresponding offsets in descending order among auto-correlation values calculated within a specific frequency offset range between a received signal and a predefined symbol. A frequency offset corrector compares a ratio of a first auto-correlation value to a second auto-correlation value with a predetermined first threshold, determines whether first and second frequency offsets corresponding to the first and second auto-correlation values are adjacent to each other if the ratio of the auto-correlation values is less than the first threshold, and determines an initial carrier frequency offset using a difference between the first frequency offset and a frequency offset correction value determined according to system, if the first and second frequency offsets are adjacent to each other and a ratio of the second auto-correlation value and a third auto-correlation value is greater than a predetermined second threshold.
摘要翻译：提供了一种用于在OFDM系统中使用预定符号来恢复接收信号的载波频率的装置和方法。最大值检测器在接收信号和预定义符号之间的特定频率偏移范围内计算的自相关值之中以降序检测至少三个值及其相应的偏移。频率偏移校正器将第一自相关值与第二自相关值的比率与预定的第一阈值进行比较，确定与第一和第二自相关值对应的第一和第二频率偏移是否彼此相邻如果所述自相关值的比率小于所述第一阈值，并且如果所述第一和第二频率偏移相邻，则使用根据系统确定的所述第一频率偏移和频率偏移校正值之间的差来确定初始载波频率偏移并且第二自相关值和第三自相关值的比率大于预定的第二阈值。

33. 发明授权

US08787847B2 Apparatus and method for calibration of transmitter in communication device 有权
标题翻译：通信设备中发射机校准的装置和方法
公开(公告)号：US08787847B2
公开(公告)日：2014-07-22
申请号：US13549937
申请日：2012-07-16
申请人： Si-Bum Jun , In-Yup Kang , Min-Goo Kim , Chang-Joon Park , Won-Suk Choi
发明人： Si-Bum Jun , In-Yup Kang , Min-Goo Kim , Chang-Joon Park , Won-Suk Choi
IPC分类号： H04B17/00 , H04L25/49
CPC分类号： H04L25/49 , H04B1/0475 , H04B1/525 , H04B17/11 , H04B2001/0416 , H04W52/367
摘要： A method and an apparatus for calibration of a transmitter not having a Surface Acoustic Wave (SAW) filter are provided. The apparatus includes a calibration unit for outputting a detuning signal by which a resonance frequency of a Radio Frequency (RF) circuit is detuned with respect to a transmit operating frequency, and an RF unit for changing the resonance frequency according to the detuning signal and for outputting an out-of-band noise and a transmit signal having a relatively lower power than that of a case where the resonance frequency and the transmit operating frequency are tuned to each other.
摘要翻译：提供了一种用于校准不具有表面声波（SAW）滤波器的发射器的方法和装置。该装置包括用于输出失谐信号的校准单元，通过该失谐信号，射频（RF）电路的谐振频率相对于发射操作频率失谐，以及用于根据失谐信号改变谐振频率的RF单元，输出与谐振频率和发送操作频率相互调谐的情况相比功率相对较低的带外噪声和发送信号。

34. 发明授权

US08121565B2 Method and apparatus for receiving data using multiple antennas in a communication system 有权
标题翻译：用于在通信系统中使用多个天线接收数据的方法和装置
公开(公告)号：US08121565B2
公开(公告)日：2012-02-21
申请号：US11961179
申请日：2007-12-20
申请人： Jong-Hun Rhee , Min-Goo Kim , Young Mo Gu
发明人： Jong-Hun Rhee , Min-Goo Kim , Young Mo Gu
IPC分类号： H04B17/02
CPC分类号： H04B7/0848 , H04B7/0854 , H04B7/0857
摘要： A method and apparatus for receiving data using multiple antennas in a communication system are provided. A received signal-combining scheme is determined according to the strength of an interference signal included in the signals received from the antennas. The signals received from the antennas are combined according to the determined received signal-combining scheme. In this manner, the method and apparatus adaptively use a received data-combining scheme according to the channel condition, thereby ensuring optimal reception performance.
摘要翻译：提供一种在通信系统中使用多个天线接收数据的方法和装置。根据从天线接收的信号中包含的干扰信号的强度来确定接收到的信号组合方案。从天线接收的信号根据确定的接收信号组合方案进行组合。以这种方式，该方法和装置根据信道条件自适应地使用接收的数据组合方案，从而确保最佳的接收性能。

35. 发明授权

US07948908B2 Apparatus and method for encoding and decoding in a mobile communication system 有权
标题翻译：用于移动通信系统中的编码和解码的装置和方法
公开(公告)号：US07948908B2
公开(公告)日：2011-05-24
申请号：US11368663
申请日：2006-03-07
申请人： Jong-Hun Rhee , Beom-Sik Bae , Min-Goo Kim , Jong-Han Lim , Jung-Soo Jung
发明人： Jong-Hun Rhee , Beom-Sik Bae , Min-Goo Kim , Jong-Han Lim , Jung-Soo Jung
IPC分类号： G01R31/08
CPC分类号： H04W4/06 , H04N19/61 , H04W28/18 , H04W56/00 , H04W72/005
摘要： A system and method are provided for setting a point of time when information is applied in a mobile communication system. A broadcast overhead message including additional information is received and its application time-point is computed. The broadcast overhead message including the additional information is then applied at the computed time-point.
摘要翻译：提供了一种用于设置在移动通信系统中应用信息时的时间点的系统和方法。收到包括附加信息的广播开销消息，并计算其应用时间点。然后在计算的时间点应用包括附加信息的广播开销消息。

36. 发明授权

US07639659B2 Apparatus and method for controlling hybrid automatic repeat request (HARQ) in a mobile communication system 有权
标题翻译：用于在移动通信系统中控制混合自动重传请求（HARQ）的装置和方法
公开(公告)号：US07639659B2
公开(公告)日：2009-12-29
申请号：US10793934
申请日：2004-03-08
申请人： Sang-Hyuck Ha , Jin-Woo Heo , Min-Goo Kim
发明人： Sang-Hyuck Ha , Jin-Woo Heo , Min-Goo Kim
IPC分类号： H04B7/216
CPC分类号： H04L1/1819 , H04B7/264 , H04L1/0003 , H04L1/0009 , H04L1/0066 , H04L1/0072 , H04W84/04 , Y02D70/449
摘要： A Hybrid Automatic Repeat reQuest (HARQ) control apparatus and method for detecting a message received over a packet data control channel in a mobile communication system are provided in which a base station transmits a packet data control message over at least one packet data control channel and transmits packet data to a mobile station over a packet data channel. A control channel decoder decodes a control message received over the packet data control channel. Based on the decoded control message, the HARQ controller determines at least one of whether to perform demodulation and decoding on a packet received over the packet data channel, whether to update a Walsh mask, and whether to perform state transition on the mobile station. The HARQ controller based on the determination performs at least one of the following functions: outputs demodulation and decoding parameters, updates a Walsh mask, and outputs a state transition value to an upper layer. A data channel demodulator demodulates packet data received over the packet data channel upon receiving a demodulation parameter from the HARQ controller. A decoder decodes the packet data demodulated by the data channel demodulator upon receiving a decoding parameter from the HARQ controller.
摘要翻译：提供了一种用于检测在移动通信系统中通过分组数据控制信道接收的消息的混合自动重复请求（HARQ）控制装置和方法，其中基站通过至少一个分组数据控制信道发送分组数据控制消息，并且通过分组数据信道将分组数据发送到移动台。控制信道解码器解码通过分组数据控制信道接收的控制消息。基于解码控制消息，HARQ控制器确定是否对通过分组数据信道接收的分组进行解调和解码中的至少一个，是否更新沃尔什掩模以及是否在移动台上执行状态转换。基于该确定的HARQ控制器执行以下功能中的至少一个：输出解调和解码参数，更新沃尔什掩模，并将状态转换值输出到上层。在从HARQ控制器接收到解调参数时，数据信道解调器解调通过分组数据信道接收的分组数据。解码器在从HARQ控制器接收到解码参数时对由数据信道解调器解调的分组数据进行解码。

37. 发明授权

US07523382B2 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：US07523382B2
公开(公告)日：2009-04-21
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： H03M13/00
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。

38. 发明授权

US07451383B2 Rate matching device and method for a data communication system 有权
公开(公告)号：US07451383B2
公开(公告)日：2008-11-11
申请号：US10867459
申请日：2004-06-14
申请人： Min-Goo Kim , Beong-Jo Kim , Se-Hyoung Kim , Soon-Jae Choi , Young-Hwan Lee
发明人： Min-Goo Kim , Beong-Jo Kim , Se-Hyoung Kim , Soon-Jae Choi , Young-Hwan Lee
IPC分类号： H03M13/03 , H03M13/00 , G06F11/00
CPC分类号： H04L1/0041 , H03M13/2957 , H03M13/2993 , H03M13/6356 , H03M13/6362 , H03M13/6513 , H03M13/6569 , H04L1/0059 , H04L1/0066 , H04L1/0069 , H04L1/08
摘要： A device and method for rate matching channel-encoded symbols in a data communication system. The rate matching device and method can be applied to a data communication system which uses one or both of a non-systematic code (such as a convolutional code or a linear block code) and a systematic code (such as a turbo code). In one aspect, the rate matching device includes a plurality of rate matching blocks, the number of the rate matching blocks being equal to a reciprocal of a coding rate of a channel encoder. The rate matching device can rate match the symbols encoded with a non-systematic code or the symbols encoded with a systematic code, by changing initial parameters including the number of input symbols, the number of output symbols, and the puncturing or repetition pattern determining parameters.

39. 发明授权

US07359357B2 Method and apparatus for transmitting and receiving broadcast data using outer-coding 有权
标题翻译：使用外部编码发送和接收广播数据的方法和装置
公开(公告)号：US07359357B2
公开(公告)日：2008-04-15
申请号：US11083341
申请日：2005-03-18
申请人： Jong-Hun Rhee , Su-Yean Kim , Min-Goo Kim , Beom-Sik Bae
发明人： Jong-Hun Rhee , Su-Yean Kim , Min-Goo Kim , Beom-Sik Bae
IPC分类号： H04B7/212
CPC分类号： H04L1/0078 , H04B7/2656 , H04L1/0045 , H04L1/0057 , H04L1/0065 , H04W4/06
摘要： A method and apparatus for transmitting and receiving a broadcast service in a mobile communication system which outer-codes frames for a plurality of broadcast services and Time Domain Multiplex (TDM)-transmits the outer-coded frames. A transmitter transmits a broadcast parameter message comprising information indicating a specific sub-buffer in which respective broadcast services are stored. A receiver for receiving the broadcast parameter message from the transmitter, and maps the sub-buffer to a corresponding sub-block mask based on the broadcast parameter message. The transmitter TDM-transmits the frames for the plurality of broadcast services per sub-block. The receiver selectively receives frames for a desired broadcast service using the sub-block mask and decodes the selectively received frames.
摘要翻译：一种在移动通信系统中发送和接收广播服务的方法和装置，该移动通信系统对多个广播服务和时域多路复用（TDM）进行外部编码帧 - 传输外部编码的帧。发射机发送包括指示其中存储相应广播服务的特定子缓冲器的信息的广播参数消息。一种用于从发射机接收广播参数消息的接收机，并且基于广播参数消息将子缓冲器映射到对应的子块掩码。发射机TDM - 每个子块发送多个广播业务的帧。接收机使用子块掩模选择性地接收所需广播服务的帧，并对选择性接收的帧进行解码。

40. 发明授权

US07227874B2 Apparatus and method for determining a modulation scheme in a communication system 有权
标题翻译：用于确定通信系统中的调制方案的装置和方法
公开(公告)号：US07227874B2
公开(公告)日：2007-06-05
申请号：US10194621
申请日：2002-07-12
申请人： Min-Goo Kim , Sang-Hyuck Ha
发明人： Min-Goo Kim , Sang-Hyuck Ha
IPC分类号： H04J3/22
CPC分类号： H04L1/0009 , H04L1/0003 , H04L1/0017
摘要： An apparatus and method for determining an optimum modulation scheme and code rate in a communication system using a variable transmission scheme. In a transmitter included in the communication system, an encoder encodes an encoder packet (EP) and a plurality of modulators having different modulation orders modulate sub-packets being codewords output from the encoder. A selector selects one of the modulators by comparing an MPR (Modulation order Product code Rate) being a ratio of an EP size to a number of payload modulation symbols, and comparing the MPR with a threshold.
摘要翻译：一种用于在使用可变传输方案的通信系统中确定最佳调制方案和码率的装置和方法。在包括在通信系统中的发射机中，编码器对编码器分组（EP）进行编码，并且具有不同调制阶数的多个调制器调制作为从编码器输出的码字的子分组。选择器通过比较作为EP大小与有效载荷调制符号数的比率的MPR（调制顺序乘积码速率），并将MPR与阈值进行比较来选择调制器之一。

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