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31. 发明申请

WO2006065026A1 METHOD FOR DESIGNING OPERATION SCHEDULES OF FFT AND MIMO-OFDM MODEM THEREOF 审中-公开
标题翻译：用于设计FFT和MIMO-OFDM调制解调器的操作调度的方法
公开(公告)号：WO2006065026A1
公开(公告)日：2006-06-22
申请号：PCT/KR2005/003940
申请日：2005-11-22
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , KT CORPORATION , SK TELECOM CO., LTD. , KTFREETEL CO., LTD. , HANARO TELECOM, INC. , KIM, Jun-Woo , JUNG, Jae-Gun , PARK, Youn-Ok
发明人： KIM, Jun-Woo , JUNG, Jae-Gun , PARK, Youn-Ok
IPC分类号： H04J11/00
CPC分类号： H04B7/0891 , H04B7/0669 , H04L27/263 , H04L27/265
摘要： The present invention provides a method for designing operation schedules of a fast Fourier transform (FFT) and a multiple input multiple output orthogonal frequency division multiplexing modem (MIMO-OFDM modem) thereof. According to the present invention, an operation speed of an FFT operator is set up, a receiving symbol is arranged in an OFDM symbol duration in an FFT after receiving the symbol, a transmitting symbol is arranged in an OFDM symbol duration in the FFT schedule before transmitting the symbol, a transmitting/receiving symbol which has the same timing is inserted into an idle symbol duration of the FFT schedule, an FFT schedule which is good to be deleted is deleted, and symbols of the deleted FFT schedule are re-arranged in order to not have an error occur in transmitting/receiving timing. According to the present invention, the FFT operation and the IFFT operation are processed by one FFT/IFFT operator in the MIMO-OFDM modulation/demodulation apparatus, so that symbols to be modulated/demodulated may be properly scheduled, a minimum number of FFT/IFFT operators may be needed, and a delay of data processing may be minimized.
摘要翻译：本发明提供一种用于设计快速傅立叶变换（FFT）及其多输入多输出正交频分复用调制解调器（MIMO-OFDM调制解调器）的操作计划的方法。根据本发明，建立FFT运算符的运算速度，在接收到符号之后，在FFT中以OFDM符号持续时间方式布置接收符号，在FFT调度表中以OFDM符号持续时间内排列发送符号发送符号时，将具有相同定时的发送/接收符号插入到FFT调度的空闲符号持续时间中，删除良好被删除的FFT调度，并且将删除的FFT调度的符号重新排列在为了在发送/接收定时中不发生错误。根据本发明，MIMO-OFDM调制/解调装置中的FFT / IFFT运算符对FFT运算和IFFT运算进行处理，从而可以适当地调整要调制/解调的符号，FFT / 可能需要IFFT运算符，并且数据处理的延迟可以被最小化。

32. 发明申请

WO2006062299A2 SUBCARRIER ALLOCATION APPARATUS AND METHOD, SUBCARRIER DE-ALLOCATION APPARATUS AND METHOD IN OFDM SYSTEM 审中-公开
标题翻译： SUBCARRIER分配装置和方法，OFDM系统中的SUBCARRIER去分配装置和方法
公开(公告)号：WO2006062299A2
公开(公告)日：2006-06-15
申请号：PCT/KR2005/003807
申请日：2005-11-10
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , KT CORPORATION , SK TELECOM CO., LTD. , KTFREETEL CO., LTD. , HANARO TELECOM, INC. , KIM, Jun-Woo , CHAE, Su-Chang , LEE, Young-Ha , HONG, Eon-Young , PARK, Youn-Ok
发明人： KIM, Jun-Woo , CHAE, Su-Chang , LEE, Young-Ha , HONG, Eon-Young , PARK, Youn-Ok
IPC分类号： H04L27/26 , H04J11/00
CPC分类号： H04L5/0044 , H04L5/0048 , H04L5/0092
摘要： A subcarrier allocating apparatus allocating data to be transmitted to a plurality of orthogonal subcarriers in an orthogonal frequency division multiplexing (OFDM) system, the apparatus including: a logical index generator generating a logical index for allocating a data subcarrier to a physical index, the logical index being included with only data subcarriers and the physical index indicating a location of a substantial subcarrier within a symbol; an intermediate index converter converting the logical index into an intermediate index by performing a given operation on the generated logical index and a pilot location constant; and a physical index converter converting the intermediate index into a physical index based on the number of data subcarriers on the left and right sides of a null subcarrier for insertion of a guard interval formed by the null subcarrier.
摘要翻译：一种子载波分配装置，在正交频分复用（OFDM）系统中分配要发送到多个正交子载波的数据，该装置包括：逻辑索引发生器，其生成用于将数据子载波分配给物理索引的逻辑索引，逻辑索引仅包括数据子载波，物理索引指示符号内的实质子载波的位置; 中间索引转换器，通过对所生成的逻辑索引和导频位置常数执行给定的操作来将逻辑索引转换成中间索引; 以及物理指标转换器，其基于用于插入由所述无效副载波形成的保护间隔的无效副载波的左侧和右侧的数据子载波的数量将所述中间索引转换为物理索引。

33. 发明申请

WO2006062297A2 DEMODULATOR OF BASE STATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS 审中-公开
标题翻译：正交频分多址通信基站解调器
公开(公告)号：WO2006062297A2
公开(公告)日：2006-06-15
申请号：PCT/KR2005003791
申请日：2005-11-09
申请人： UTE ELECTRONICS & TELECOMMUNICATIONS RES INST , SAMSUNG ELECTRONICS CO LTD , KT CORP , SK TELECOM CO LTD , KT FREETEL CO LTD , HANARO TELECOM INC , LEE YOUNG-HA , PARK YOUN-OK
发明人： LEE YOUNG-HA , PARK YOUN-OK
IPC分类号： H04J11/00
CPC分类号： H04L27/22 , H04L1/0026 , H04L1/18 , H04L5/0007 , H04L5/0053 , H04L27/2647
摘要： A base station demodulator according to the exemplary embodiment of the present invention includes a vector index demodulator, and a channel value detector. The vector index demodulator demodulates CQI or ARQ ACK/NACK channels by multiplying QPSK modulation signals transmitted as m subcarriers in a tile by m conjugate complexes corresponding to the m subcarriers, and determines the greatest value of the demodulation results as a vector index. The channel value detector inputs n vector indexes demodulated by the vector index demodulator to a first shift register, inputs n subsequent vector indexes to a second shift register, and detects a channel value for the CQI or the ARQ ACK/NACK by repeating the above vector index input to the first and second shift registers m-times.
摘要翻译：根据本发明的示例性实施例的基站解调器包括矢量索引解调器和信道值检测器。矢量索引解调器通过将与m个子载波相对应的m个共轭复数乘以作为m个子载波的QPSK调制信号，来解调CQI或ARQ ACK / NACK信道，并且将解调结果的最大值确定为矢量索引。信道值检测器将由矢量索引解调器解调的n个矢量索引输入到第一移位寄存器，将n个后续矢量索引输入到第二移位寄存器，并通过重复上述矢量来检测CQI或ARQ ACK / NACK的信道值索引输入到第一和第二移位寄存器m次。

34. 发明申请

WO2006059829A2 METHOD FOR AUTOMATIC GAIN CONTROL BEFORE INITIAL SYNCHRONIZATION IN OFDM SYSTEM AND APPARATUS THEREOF 审中-公开
标题翻译： OFDM系统中初始同步前自动增益控制的方法及其装置
公开(公告)号：WO2006059829A2
公开(公告)日：2006-06-08
申请号：PCT/KR2005/001980
申请日：2005-06-24
申请人： Electronics and Telecommunications Research Institute , SAMSUNG ELECTRONICS CO., LTD. , KT Corporation , SK Telecom Co., Ltd. , KTFREETEL CO., LTD. , HANARO TELECOM, INC. , LEE, Yong-Su , PARK, Youn-Ok , KIM, Jun-Woo , BANG, Young-Jo
发明人： LEE, Yong-Su , PARK, Youn-Ok , KIM, Jun-Woo , BANG, Young-Jo
IPC分类号： H03G3/30 , H04L27/26
CPC分类号： H03G3/3078 , H04L27/2647 , H04L27/2662
摘要： The present invention relates to a method for automatic gain control (AGC) before an initial synchronization of a mobile station modem in OFDM system, and an apparatus thereof. The AGC apparatus includes: an initial synchronization inspector that verifies whether an initial synchronization for an input block sample (k) signal has been performed; a frame divider that divides a frame into predetermined intervals B(k) for the input block sample(k) signal in the case that the initial synchronization has not been performed; a reference value inspector that compares a difference value Pref-Pcalc, between a predetermined reference value Pref and sample data average energy Pcalc, with a predetermined value; a count controller that increases or decreases the count when the difference value Pref-Pcalc compared by the reference value inspector is greater or less than the predetermined value; a count inspector that inspects whether the count is greater or less than 0 when the input block sample (k) reaches a maximum value MAX; and a gain controller which increases or decreases the gain, level by level, according to the count inspection result of the count inspector.
摘要翻译：本发明涉及用于在OFDM系统中的移动台调制解调器的初始同步之前的自动增益控制（AGC）的方法及其装置。 AGC设备包括：初始同步检查器，验证输入块样本（k）信号的初始同步是否已被执行; 帧分割器，其在初始同步未被执行的情况下将帧分割为用于输入块样本（k）信号的预定间隔B（k）参考值检查器，其将预定参考值Pref和采样数据平均能量Pcalc之间的差值Pref-Pcalc与预定值进行比较; 计数控制器，当由参考值检查器比较的差值Pref-Pcalc大于或小于预定值时，计数控制器增加或减少计数; 计数检查器，当输入块样本（k）达到最大值MAX时检查计数是大于还是小于0; 以及根据计数检查员的计数检查结果逐级增加或减少增益的增益控制器。

35. 发明申请

WO2006054848A3 APPARATUS AND METHOD FOR GENERATING RANGING PSEUDO NOISE CODE 审中-公开
公开(公告)号：WO2006054848A3
公开(公告)日：2006-05-26
申请号：PCT/KR2005/003835
申请日：2005-11-11
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , KT CORPORATION , SK TELECOM CO., LTD. , KTFREETEL CO., LTD. , HANARO TELECOM, INC. , SOHN, Kyung-Yeol , YU, Chang-Wahn , PARK, Youn-Ok
发明人： SOHN, Kyung-Yeol , YU, Chang-Wahn , PARK, Youn-Ok
IPC分类号： H04J11/00
摘要： Disclosed is an apparatus for generating a ranging pseudo noise (PN) code used in a base station of a portable internet system of an orthogonal frequency division multiplexing access scheme, wherein a ranging pseudo noise mask value is generated using a cell ID number, and then the generated ranging pseudo noise mask value is stored in a memory. A final ranging PN code is generated using the stored ranging PN mask value and a status of a pseudo random binary sequence for generating a ranging PN code. With such a structure, the maximal 256-numbered ranging PN code values can be obtained simultaneously with each 144 bit-length.

36. 发明申请

WO2006054826A2 TRANSMITTING APPARATUS IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING ACCESS SYSTEM CAPABLE OF CONTROLLING GAIN FOR VARIATION OF SUB-CHANNEL ALLOCATION AND METHOD FOR TRANSMITTING DATA THEREOF 审中-公开
标题翻译：正交频分多址接入系统中的发射装置可控制用于子信道分配变化的增益和用于发送数据的方法
公开(公告)号：WO2006054826A2
公开(公告)日：2006-05-26
申请号：PCT/KR2005/002959
申请日：2005-09-07
申请人： Electronics and Telecommunications Research Institute , SAMSUNG ELECTRONICS CO., LTD. , KT Corporation , SK Telecom Co., Ltd. , KTFREETEL CO., LTD. , HANARO TELECOM, INC. , KIM, Dae-ho , KIM, Jun-woo , PARK, Youn-ok
发明人： KIM, Dae-ho , KIM, Jun-woo , PARK, Youn-ok
IPC分类号： H04J11/00
CPC分类号： H04L27/2626 , H04L5/023
摘要： The present invention relates to a transmitter of an OFDMA system capable of controlling a gain for variation of subchannel allocation, and a method thereof. The transmitter includes a subchannel number determining unit, a modulator, a digital/analogue converter, and a gain controller controlling the gain. The subchannel number determining unit determines the number of subchannels in use according to communication environments, and the modulator modulates transmission data with reference to the number of subchannels determined by the subchannel number determining unit and outputs the modulated transmission data. The digital/analogue converter converts the transmission data into analogue data and transmits the converted analogue data through a transmit antenna. The gain controller controls gains of the transmission data according to gain values corresponding to the number of subchannels.
摘要翻译：本发明涉及能够控制用于子信道分配变化的增益的OFDMA系统的发射机及其方法。发射机包括子信道号确定单元，调制器，数/模转换器和控制增益的增益控制器。子信道号确定单元根据通信环境确定正在使用的子信道的数量，并且调制器参照由子信道号确定单元确定的子信道的数量来调制发送数据，并输出调制的发送数据。数字/模拟转换器将传输数据转换为模拟数据，并通过发送天线发送转换的模拟数据。增益控制器根据对应于子信道数量的增益值控制发送数据的增益。

37. 发明申请

WO2004047019A2 ENCODER USING LOW DENSITY PARITY CHECK CODES AND ENCODING METHOD THEREOF 审中-公开
标题翻译：使用低密度奇偶校验码的编码器及其编码方法
公开(公告)号：WO2004047019A2
公开(公告)日：2004-06-03
申请号：PCT/KR2003/002532
申请日：2003-11-21
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , CHAE, Su-Chang , LEE, Yong-Su , CHOI, Jung-Pil , PARK, Youn-Ok
发明人： CHAE, Su-Chang , LEE, Yong-Su , CHOI, Jung-Pil , PARK, Youn-Ok
IPC分类号： G06N
CPC分类号： H03M13/1177 , H03M13/116 , H03M13/1182
摘要： An encoder using LDPC (low density parity check) codes, and an encoding method. The encoder comprises a parity check matrix generator for generating a parity check matrix H; and a codeword generator for processing the parity check matrix H to generate a codeword, and the codeword generator comprises: an AB analyzer for analyzing the parity check matrix H into matrixes A and B; a pivoting unit for pivoting the parity check matrix H; a bit-reversing unit for bit-reversing the pivoted matrix; an LU analyzer for analyzing the matrix A into matrixes L and U; and a codeword generator unit for performing a logical operation on the matrixes A, B, L and U. A bit-reversing method is used to effectively generate a parity check matrix having a high girth by using a regular encoder.
摘要翻译：使用LDPC（低密度奇偶校验）码的编码器，以及编码方法。编码器包括用于产生奇偶校验矩阵H的奇偶校验矩阵发生器; 以及用于处理奇偶校验矩阵H以生成码字的码字生成器，并且码字生成器包括：用于将奇偶校验矩阵H分析为矩阵A和B的AB分析器; 用于枢转奇偶校验矩阵H的枢转单元; 用于对所述枢转矩阵进行位反转的位反转单元; 用于将矩阵A分解为矩阵L和U的LU分析器; 以及用于对矩阵A，B，L和U执行逻辑运算的码字发生器单元。使用位反转方法通过使用常规编码器来有效地生成具有高周长的奇偶校验矩阵。

38. 发明申请

WO2011053053A3 COMMUNICATION METHOD 审中-公开
标题翻译：通信方法
公开(公告)号：WO2011053053A3
公开(公告)日：2011-11-03
申请号：PCT/KR2010007541
申请日：2010-10-29
申请人： KOREA ELECTRONICS TELECOMM , PARK JISOO , LEE NAMSUK , LEE SOOK JIN , PARK YOUN OK , KWON DONG SEUNG
发明人： PARK JISOO , LEE NAMSUK , LEE SOOK JIN , PARK YOUN OK , KWON DONG SEUNG
IPC分类号： H04L1/18 , H04B7/26
CPC分类号： H04L1/1812 , H04B7/2656 , H04L1/1848 , H04L1/1854
摘要： According to the invention, a mobile station and a base station communicate with each other using a frame including one or more downlink subframes and one or more uplink subframes. The base station starts the transmission of a data burst in the subframe corresponding to a downlink subframe index. The mobile station transmits feedback for the data burst in the subframe corresponding to an uplink subframe index. In the event the frame operates in accordance with a time division duplex scheme, the uplink subframe index is determined using at least the downlink subframe index and a parameter value.
摘要翻译：根据本发明，移动台和基站使用包括一个或多个下行链路子帧和一个或多个上行链路子帧的帧来相互通信。基站开始在与下行链路子帧索引对应的子帧中发送数据突发。移动台在对应于上行链路子帧索引的子帧中发送针对数据突发的反馈。在帧根据时分双工方案进行操作的情况下，至少使用下行链路子帧索引和参数值来确定上行链路子帧索引。

39. 发明申请

WO2009072737A1 METHOD AND APPARATUS FOR DECOMPOSING RECEIVED SYMBOL SIGNAL MODULATED WITH BIT REFLECTED GRAY CODE INTO BIT INFORMATION 审中-公开
标题翻译：用于将接收到的符号信号转换成位信号的方法和装置
公开(公告)号：WO2009072737A1
公开(公告)日：2009-06-11
申请号：PCT/KR2008/005129
申请日：2008-09-01
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , YU, Chang Wahn , YOON, Dong Weon , HYUN, Kwang Min , PARK, Youn Ok , KIM, Dae Ho , KIM, Jun-Woo , PARK, Hyeong Sook , BAHNG, Seung Jae , BANG, Young Jo , SOHN, Kyung Yeol
发明人： YU, Chang Wahn , YOON, Dong Weon , HYUN, Kwang Min , PARK, Youn Ok , KIM, Dae Ho , KIM, Jun-Woo , PARK, Hyeong Sook , BAHNG, Seung Jae , BANG, Young Jo , SOHN, Kyung Yeol
IPC分类号： H04L27/38
CPC分类号： H04L25/067 , H04L1/005
摘要： Disclosed is a method and apparatus for composing a received symbol signal modulated with a bit reflected Gray code into bit information. According to an embodiment of the present invention, a positive integer of the received symbol signal having bits is assigned according to the Gray mapping rule, and a sign is determined. A value that is indicative of an arrangement of the bits constituting the received symbol signal is calculated. A boundary value in at least one bit group consisting of the bits constituting the received symbol signal is acquired, and a difference from an absolute value of the received symbol signal is calculated. The received symbol signal is converted into information per bit using a value of the received symbol signal based on the positive integer and the determined sign, the value that is indicative of the bit arrangement, and the difference from the absolute value. Therefore, it is possible to reduce complexity in bitwise decomposition for an iterative decoder inevitably used in a receiver.
摘要翻译：公开了一种用于将被反映格雷码的位进行调制的接收符号信号组合成比特信息的方法和装置。根据本发明的实施例，根据Gray映射规则分配具有位的接收符号信号的正整数，并且确定符号。计算表示构成接收符号信号的位的排列的值。获取由构成接收到的符号信号的比特组构成的至少一个比特组中的边界值，并且计算与接收到的符号信号的绝对值的差值。基于正整数和确定的符号，指示比特排列的值以及与绝对值的差，使用接收到的符号信号的值将接收的符号信号转换为每位的信息。因此，可以降低在接收机中不可避免地使用的迭代解码器的逐位分解的复杂度。

40. 发明申请

WO2007021057A1 VITERBI DECODER AND METHOD THEREOF 审中-公开
标题翻译： VITERBI解码器及其方法
公开(公告)号：WO2007021057A1
公开(公告)日：2007-02-22
申请号：PCT/KR2005/004111
申请日：2005-12-05
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , SAMSUNG ELECTRONICS CO., LTD. , KT CORPORATION , SK TELECOM CO., LTD. , HANARO TELECOM, INC. , CHAE, Su-Chang , PARK, Youn-Ok
发明人： CHAE, Su-Chang , PARK, Youn-Ok
IPC分类号： H03M13/41
CPC分类号： H03M13/4169 , H03M13/4107 , H03M13/413 , H03M13/6502
摘要： The present invention relates to a decoder for tail-biting convolution codes and a method thereof. The decoder receives an encoding bit sequence in a convolutional encoding method from a channel, generates an expanded encoding bit sequence, Viterbi decodes the expanded encoding bit sequence, and generates decoded data. In addition, the decoder selects a central bit sequence of the decoded data, rearranges the central bit sequence, and generates final decoded data. Accordingly, the decoder has a simplified configuration for decoding the bit sequence encoded in the tail biting convolutional encoding method, and the decoder also decodes a bit sequence encoded in a zero-tail convolutional encoding method.
摘要翻译：本发明涉及一种用于尾部卷积码的解码器及其方法。解码器从信道中以卷积编码方式接收编码比特序列，生成扩展编码比特序列，维特比解码扩展编码比特序列，并产生解码数据。此外，解码器选择解码数据的中央位序列，重新排列中央位序列，并生成最终解码数据。因此，解码器具有用于解码以尾巴卷积编码方法编码的比特序列的简化配置，并且解码器还对以零尾卷积编码方式编码的比特序列进行解码。

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