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61. 发明申请

US20090177951A1 PRIORI DECODING SCHEME BASED ON MAP MESSAGES 有权
标题翻译：基于地图信息的PRIORI解码方案
公开(公告)号：US20090177951A1
公开(公告)日：2009-07-09
申请号：US11970373
申请日：2008-01-07
申请人： Chun Woo Lee , Jong Hyeon Park
发明人： Chun Woo Lee , Jong Hyeon Park
IPC分类号： H04L1/00 , G06F11/00
CPC分类号： H03M13/4107 , H03M13/3994 , H03M13/6544
摘要： A method and apparatus for decoding encoded data bits of a wireless communication transmission are provided. A set of a-priori bit values corresponding to known bit values of the encoded data bits may be generated. Decoding paths that correspond to decoded data bits that are inconsistent with the a-priori bit values may be removed from the possible decoding paths to consider, and decoding the encoded data bits by selecting a decoding path from remaining decoding paths of the possible decoding paths that were not removed. A-priori bit values may be extracted from various messages, such as DL-MAP, UL-MAP, RNG-REQ, and BW-REQ messages.
摘要翻译：提供了一种用于解码无线通信传输的编码数据位的方法和装置。可以生成对应于编码数据位的已知位值的一组先验位值。可以从可能的解码路径中去除对应于与先验比特值不一致的解码数据比特的解码路径，并且通过从可能的解码路径的剩余解码路径中选择解码路径来解码编码数据比特，没有删除。可以从诸如DL-MAP，UL-MAP，RNG-REQ和BW-REQ消息的各种消息中提取先验比特值。

62. 发明申请

US20090158110A1 FORWARD AND REVERSE SHIFTING SELECTIVE HARQ COMBINING SCHEME FOR OFDMA SYSTEMS 有权
标题翻译： FORDMA系统的前向和反向移位选择性HARQ组合方案
公开(公告)号：US20090158110A1
公开(公告)日：2009-06-18
申请号：US11956278
申请日：2007-12-13
申请人： Jong Hyeon Park , Bok Tae Sim , Je Woo Kim , Serguei A. Glazko , Sameer Nanavati , Ju Won Park
发明人： Jong Hyeon Park , Bok Tae Sim , Je Woo Kim , Serguei A. Glazko , Sameer Nanavati , Ju Won Park
IPC分类号： H04L1/18 , G06F11/14
CPC分类号： H04L1/1845 , H04L1/1812
摘要： A method and apparatus for combining retransmitted hybrid automatic repeat-request (HARQ) messages at different stages in an OFDM/OFDMA receiver are provided. A combination of different types of HARQ combiners may be designed into the receiver and selected on a per-channel basis. Proper selection of a HARQ combining scheme may reduce the required HARQ buffer size and may provide an increased combining gain when compared to conventional HARQ combining techniques. Furthermore, the HARQ combiner type may be dynamically selected through forward and reverse shifting between the different types of HARQ combining schemes in an effort to decrease the bit error ratio (BER) without saturating the HARQ buffer.
摘要翻译：提供了一种用于在OFDM / OFDMA接收机中的不同阶段组合重传的混合自动重传请求（HARQ）消息的方法和装置。可以将不同类型的HARQ组合器的组合设计到接收机中并且在每个信道的基础上进行选择。 HARQ组合方案的正确选择可以减少所需的HARQ缓冲器大小，并且与常规HARQ组合技术相比可以提供增加的组合增益。此外，可以通过在不同类型的HARQ组合方案之间的正向和反向移位来动态地选择HARQ组合器类型，以努力降低误码率（BER）而不使HARQ缓冲器饱和。

63. 发明申请

US20090154627A1 METHODS AND APPARATUS FOR IDENTIFYING A PREAMBLE SEQUENCE AND FOR ESTIMATING AN INTEGER CARRIER FREQUENCY OFFSET 有权
标题翻译：用于识别前序列并估计整数载波频率偏移的方法和装置
公开(公告)号：US20090154627A1
公开(公告)日：2009-06-18
申请号：US11955062
申请日：2007-12-12
申请人： Jong Hyeon Park , Ju Won Park , Je Woo Kim
发明人： Jong Hyeon Park , Ju Won Park , Je Woo Kim
IPC分类号： H04L7/00
CPC分类号： H04L27/2659
摘要： In accordance with a method for identifying a preamble sequence and for estimating an integer carrier frequency offset, a signal that comprises a preamble sequence from a set of possible preamble sequences is received. A reduced set of integer carrier frequency offset (CFO) candidates may be determined. Cross-correlation operations may be performed with respect to the received signal and multiple candidate transmitted signals. Each candidate transmitted signal may include one of the set of possible preamble sequences. In addition, each candidate transmitted signal may correspond to one of the reduced set of integer CFO candidates. Multiple correlation values may be determined as a result of the cross-correlation operations. The correlation values may be used to identify the preamble sequence and to estimate the integer CFO.
摘要翻译：根据用于识别前导码序列和估计整数载波频率偏移的方法，接收包括来自一组可能的前同步码序列的前置码序列的信号。可以确定减小的整数载波频率偏移（CFO）候选集。可以相对于接收信号和多个候选发送信号执行互相关运算。每个候选发送信号可以包括一组可能的前导码序列之一。此外，每个候选发送信号可以对应于缩减的整数CFO候选集之一。作为互相关运算的结果，可以确定多个相关值。相关值可用于识别前导序列并估计整数CFO。

64. 发明申请

US20070280363A1 Enhanced channel estimation for communication system receiver 失效
标题翻译：通信系统接收机的增强信道估计
公开(公告)号：US20070280363A1
公开(公告)日：2007-12-06
申请号：US11445735
申请日：2006-06-01
申请人： Se Bin Im , Jong Hyeon Park , Je Woo Kim , Hyung Jin Choi
发明人： Se Bin Im , Jong Hyeon Park , Je Woo Kim , Hyung Jin Choi
IPC分类号： H04K1/10
CPC分类号： H04L25/0212 , H04L5/0023 , H04L25/022 , H04L25/0228 , H04L25/0232 , H04L27/2647
摘要： An embodiment of the present invention is a technique to process signals in a communication system. A channel impulse response (CIR) generator generates a time-domain windowed CIR from a received signal using a window function. A thresholder thresholds the time-domain windowed CIR. A compensator compensates window effect for the thresholded time-domain windowed CIR to provide an enhanced channel estimate in frequency domain.
摘要翻译：本发明的实施例是一种在通信系统中处理信号的技术。信道脉冲响应（CIR）发生器使用窗口函数从接收到的信号生成时域窗口CIR。阈值阈值限制了时域窗口的CIR。补偿器补偿阈值时域窗口CIR的窗口效应，以在频域中提供增强的信道估计。

65. 发明授权

US06593882B1 Method for processing signal of adaptive array smart antenna in array smart antenna system 有权
标题翻译：阵列智能天线系统中自适应阵列智能天线信号处理方法
公开(公告)号：US06593882B1
公开(公告)日：2003-07-15
申请号：US10106608
申请日：2002-03-26
申请人： Je-Woo Kim , Jong-Hyeon Park , Bok-Tae Shim , Sang-Hoon Roh , Tae-Ryun Chang
发明人： Je-Woo Kim , Jong-Hyeon Park , Bok-Tae Shim , Sang-Hoon Roh , Tae-Ryun Chang
IPC分类号： H01Q326
CPC分类号： H04B7/086 , H04B7/0851 , H04B7/0854
摘要： There are provided adaptive beamforming algorithms for an adaptive array smart antenna. According to one embodiment of the present invention, the adaptive array smart antenna constructs an input signal matrix with a predetermined number of input signals, computes a transmission signal matrix that minimizes a cost function using a first steering matrix set to an initial value and the input signal matrix, computes a second steering matrix that minimizes the cost function using the transmission signal matrix and the input signal matrix, maps the second steering matrix on a unit circle, constructs a third steering matrix with the mapped values, normalizes the third steering matrix and determining whether the third steering matrix converges, and demodulates data using the transmission signal matrix if the third steering matrix converges.
摘要翻译：为自适应阵列智能天线提供了自适应波束成形算法。根据本发明的一个实施例，自适应阵列智能天线构建具有预定数量的输入信号的输入信号矩阵，计算使用设置为初始值的第一导引矩阵和输入的最小化成本函数的传输信号矩阵信号矩阵，计算使用传输信号矩阵和输入信号矩阵使成本函数最小化的第二导引矩阵，将第二导引矩阵映射在单位圆上，构建具有映射值的第三导引矩阵，归一化第三导引矩阵，确定第三导引矩阵是否收敛，并且如果第三导引矩阵收敛则使用传输信号矩阵来解调数据。

66. 发明授权

US06522687B2 Data transmitter and receiver of a DS-CDMA communication system 有权
标题翻译： DS-CDMA通信系统的数据发射机和接收机
公开(公告)号：US06522687B2
公开(公告)日：2003-02-18
申请号：US09775600
申请日：2001-02-05
申请人： Jong-Hyeon Park , Je-Woo Kim
发明人： Jong-Hyeon Park , Je-Woo Kim
IPC分类号： H04B1500
CPC分类号： H04L25/069 , H04B1/707 , H04B2201/70701 , H04L27/206 , H04L27/2273
摘要： A data transmitter and receiver in a DS-CDMA communication system designed to prevent a serious amplitude shift in a transmission signal, facilitate recovery of data and clock signals and relieve the constraint of using a high linearity, high performance amplifier. The data transmitter includes a spread signal generating device, in which I-arm and Q-arm information signals of the first channel are spread by I-arm and Q-arm PN codes, respectively, and I-arm and Q-arm information signals of a predetermined number of following channels are spread by an inverted Q-arm PN code and the I-arm PN code, respectively. The data receiver includes a despread signal generating device, in which an I-arm despread signal is generated by multiplying I-arm and Q-arm digital baseband spread signals by I-arm and Q-arm PN codes, respectively, and adding the multiplication results, while a Q-arm despread signal is generated by multiplying Q-arm and I-arm digital baseband spread signal by an inverted I-arm PN code and the Q-arm PN code, respectively, and adding the multiplication results.
摘要翻译： DS-CDMA通信系统中的数据发射机和接收机，旨在防止传输信号的严重幅度偏移，便于恢复数据和时钟信号，并减轻使用高线性，高性能放大器的约束。数据发送器包括扩展信号发生装置，其中第一通道的I臂和Q臂信息信号分别由I臂和Q臂PN代码扩展，I臂和Q臂信息信号的预定数量的后续通道分别由反向Q臂PN码和I型PN码扩展。数据接收机包括解扩信号发生装置，其中分别通过I臂和Q臂数字基带扩展信号乘以I臂和Q-arm PN码产生I臂解扩信号，并且将乘法相加结果，通过将Q臂和I臂数字基带扩展信号分别乘以反相I臂PN码和Q-臂PN码分别产生Q臂解扩信号，并相加乘法结果。

67. 发明授权

US06396823B1 Base station transceiver for frequency hopping code division multiple access system 有权
标题翻译：基站收发器用于跳频码分多址系统
公开(公告)号：US06396823B1
公开(公告)日：2002-05-28
申请号：US09222669
申请日：1998-12-29
申请人： Jong-Hyeon Park , Je-Woo Kim
发明人： Jong-Hyeon Park , Je-Woo Kim
IPC分类号： H04B7216
CPC分类号： H04B1/7143 , H04W88/08
摘要： A small and lightweight base station transceiver utilizes a plurality of low-powered time division duplexing switches instead of a single high-powered time division duplexing switch. The base station transceiver includes a forward signal path, a reverse signal path, and a plurality of time division duplexing switches being switchable to the forward signal path or the reverse signal path according to a time division duplexing timing control signal generated from a time division duplexing timing controller. The plurality of time division duplexing switches corresponds to N time division duplexing switches where the symbol N represents a number. Output signals of the time division duplexing switches are filtered in a plurality of N bandpass filters, coupled in a junction coupler, and then radiated in the air through first and second antennas. The junction coupler couples the outputs of odd-numbered bandpass filters to transfer the coupled signals to the first antenna, and couples the outputs of even-numbered bandpass filters to transfer the coupled signal to the second antenna, so as to reduce mutual interference among the channels.
摘要翻译：小而轻量级的基站收发器利用多个低功率时分双工交换机，而不是单个高功率时分双工开关。基站收发机包括根据从时分复用产生的时分双工定时控制信号可转换到前向信号路径或反向信号路径的正向信号路径，反向信号路径和多个时分双工器开关定时控制器多个时分复用交换机对应于N个时分双工开关，其中符号N表示数字。时分双工开关的输出信号在多个N个带通滤波器中进行滤波，耦合在耦合耦合器中，然后通过第一和第二天线在空气中辐射。连接耦合器耦合奇数带通滤波器的输出，将耦合的信号传送到第一天线，并耦合偶数带通滤波器的输出，以将耦合的信号传送到第二天线，以减少相互干扰频道

68. 发明授权

US08666004B2 Methods and systems for hybrid MIMO schemes in OFDM/A systems 失效
标题翻译： OFDM / A系统中混合MIMO方案的方法和系统
公开(公告)号：US08666004B2
公开(公告)日：2014-03-04
申请号：US12124955
申请日：2008-05-21
申请人： Je Woo Kim , Jong Hyeon Park , Tae Ryun Chang , Ju Won Park
发明人： Je Woo Kim , Jong Hyeon Park , Tae Ryun Chang , Ju Won Park
IPC分类号： H04L1/02
CPC分类号： H04B7/0871 , H04B7/0617 , H04B7/0619 , H04B7/0669 , H04B7/0689 , H04B7/0857
摘要： Certain embodiments of the present disclosure provide a hybrid receiver diversity scheme that involves combining received signals in accordance with a combination of multiple receive diversity schemes. Certain embodiments of the present disclosure provide a hybrid transmit diversity scheme that involves transmitting diversity signals to a receiver according to a transmit diversity scheme selected based on signal quality measurements received from the receiver.
摘要翻译：本公开的某些实施例提供了一种混合接收机分集方案，其涉及根据多个接收分集方案的组合来组合接收到的信号。本公开的某些实施例提供了一种混合发射分集方案，其涉及根据从接收机接收的信号质量测量选择的发射分集方案向接收机发送分集信号。

69. 发明授权

US08509324B2 Methods and systems for reducing PAPR of an OFDM signal 失效
标题翻译：减少OFDM信号PAPR的方法和系统
公开(公告)号：US08509324B2
公开(公告)日：2013-08-13
申请号：US12169625
申请日：2008-07-08
申请人： Je Woo Kim , Ayman Fawzy Naguib , Jong Hyeon Park , Tae Ryun Chang
发明人： Je Woo Kim , Ayman Fawzy Naguib , Jong Hyeon Park , Tae Ryun Chang
IPC分类号： H04K1/10
CPC分类号： H04L5/0007 , H04L27/2602 , H04L27/2614
摘要： Certain embodiments of the present disclosure provide a method and an apparatus for peak-to-average power ratio (PAPR) reduction of a transmission signal in a single carrier frequency division multiple access (SC-FDMA) system. The method may utilize a permutation of a time domain signal, and/or a permutation of a frequency domain signal or a permutation of a signal transformed by a unitary matrix. The apparatus may include an M-point DFT or some other M×M unitary matrix, N-point IDFT, interpolation and frequency conversion units, and a pair of possibly different permutation matrices of size M×M, where M can be less or equal than N.
摘要翻译：本公开的某些实施例提供了在单载波频分多址（SC-FDMA）系统中发送信号的峰均功率比（PAPR）降低的方法和装置。该方法可以利用时域信号的置换和/或频域信号的置换或由酉矩阵变换的信号的置换。该装置可以包括M点DFT或一些其他M×M酉矩阵，N点IDFT，内插和频率转换单元，以及大小为M×M的一对可能不同的置换矩阵，其中M可以小于或等于比N.

70. 发明授权

US08433002B2 Methods and systems for initial FCH processing 失效
标题翻译：初始FCH处理的方法和系统
公开(公告)号：US08433002B2
公开(公告)日：2013-04-30
申请号：US13247589
申请日：2011-09-28
申请人： Jong Hyeon Park , Bok Tae Sim , Ju Won Park , Tae Ryun Chang
发明人： Jong Hyeon Park , Bok Tae Sim , Ju Won Park , Tae Ryun Chang
IPC分类号： H04L27/06
CPC分类号： H04L25/0202 , H04L25/03006 , H04L27/2649
摘要： Methods and apparatus for initially decoding a frame control header (FCH) in an orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) system in an effort to accurately determine the downlink frame prefix (DLFP) such that the remainder of an OFDM/A frame may be properly decoded are provided. Used, for example, when boosting factors applied in the transmitter to various elements of the OFDM/A frame and/or available pilots for the FCH are unknown, such methods may utilize a preamble channel estimate, the FCH pilots, or a combination thereof.
摘要翻译：用于在正交频分复用（OFDM）或正交频分多址（OFDMA）系统中首先解码帧控制报头（FCH）的方法和装置，以努力精确地确定下行链路帧前缀（DLFP），使得其余部分可以适当地解码OFDM / A帧。例如，当将在发射机中应用的增强因子用于OFDM / A帧的各种元件和/或用于FCH的可用导频是未知的，这样的方法可以利用前导信道估计，FCH导频或其组合。

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