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公开(公告)号：US08522109B2
公开(公告)日：2013-08-27
申请号：US12994367
申请日：2009-07-02
申请人： Yutaka Murakami , Shutai Okamura
发明人： Yutaka Murakami , Shutai Okamura
IPC分类号： H03M13/00
CPC分类号： H04L1/0041 , H03M13/1154 , H03M13/17 , H03M13/2703 , H03M13/2707 , H03M13/353 , H03M13/356 , H03M13/373 , H03M13/3761 , H03M13/6306 , H03M13/6356 , H04L1/00 , H04L1/08
摘要： A loss correction encoding device having an improved capability of loss correction using LDPC-CC is disclosed. In the loss correction encoding device (120), a rearranging unit (122) rearranges information data contained in n information packets according to the constraint length Kmax and the encoding rate (q−1)/q of a cheek polynomial of the loss correction code used in a loss correction encoding unit (123). Specifically, the rearranging unit (122) rearranges the information data in such a way that continuous Kmax×(q−1) pieces of information data after rearrangement are contained in different information packets. The rearranging unit (122) distributes the information data to information blocks from n information packets (n satisfies formula (1)). Kmax×(q−1)≦n (1).
摘要翻译： 公开了一种具有改进的使用LDPC-CC的损失校正能力的损失校正编码装置。 在丢失校正编码装置（120）中，重排单元（122）根据约束长度Kmax和丢失校正码的颊多项式的编码率（q-1）/ q重新排列包含在n个信息包中的信息数据 用于损失校正编码单元（123）。 具体地说，重新布置单元（122）重新排列信息数据，使得重排后的连续的Kmax×（q-1）个信息数据被包含在不同的信息包中。 重新布置单元（122）将信息数据分配给来自n个信息包（n满足公式（1））的信息块。 Kmax×（q-1）@n（1）。
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公开(公告)号：US08458577B2
公开(公告)日：2013-06-04
申请号：US12745216
申请日：2008-12-18
IPC分类号： G06F11/00
CPC分类号： H03M13/255 , H03M13/1128 , H03M13/116 , H03M13/118 , H03M13/23 , H03M13/6362 , H03M13/6502 , H03M13/6527
摘要： There is provided an encoder that provides a termination sequence with a simple structure for LDPC-CC encoding and reduces an amount of the termination sequence transmitted to a transmission line. The LDPC-CC encoder (200) connects a first encoder (230) to a second encoder (240) to perform encoding and thereby carry out LDPC-CC encoding, the first encoder (230) performing encoding based on an partial parity check matrix for information bits (110) obtained by extracting a sequence corresponding to the information bits in a parity check matrix (100) and the second encoder (240) performing encoding based on a partial parity check matrix for parity bits (120) obtained by extracting a sequence corresponding to the parity bits in the parity check matrix (100). A termination sequence generator (210) generates a termination sequence including the same number of bits as the memory length of the first encoder (230) and provides the generated termination sequence as an input sequence.
摘要翻译： 提供了一种编码器，其提供具有用于LDPC-CC编码的简单结构的终止序列，并减少发送到传输线的终止序列的量。 LDPC-CC编码器（200）将第一编码器（230）连接到第二编码器（240）以执行编码，从而执行LDPC-CC编码，第一编码器（230）基于部分奇偶校验矩阵执行编码， 通过提取与奇偶校验矩阵（100）中的信息比特相对应的序列获得的信息比特（110）和基于通过提取序列获得的奇偶校验比特（120）的部分奇偶校验矩阵执行编码的第二编码器（240） 对应于奇偶校验矩阵（100）中的奇偶校验位。 终止序列生成器（210）生成包括与第一编码器（230）的存储器长度相同数量的位的终止序列，并且将生成的终止序列提供为输入序列。
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公开(公告)号：US08423871B2
公开(公告)日：2013-04-16
申请号：US12668829
申请日：2008-07-11
CPC分类号： H04L1/0057 , H03M13/1111 , H03M13/235 , H03M13/2707 , H03M13/353 , H03M13/6306 , H04L1/0059 , H04L1/1812 , H04L5/0007 , H04L5/0042
摘要： A transmitting device and method enables improved reception quality on the receiving side when LDPC-CC (Low-Density Parity-Check Convolutional Codes) encoding is used. The transmitting device includes an LDPC-CC encoding section, a sorting section for sorting the encoded data acquired by the LDPC-CC encoding section into a first encoded data set corresponding to the column number of the column containing “1” in a part of an LDPC-CC check matrix H from which a protograph is excluded and a second encoded data set corresponding to the column numbers of the columns other than that, and a frame constructing section (control section) for constructing a transmission frame where the first and second encoded data sets are arranged in positions different in time or frequency in the transmission frame.
摘要翻译： 当使用LDPC-CC（低密度奇偶校验卷积码）编码时，发送装置和方法能够改善接收侧的接收质量。 发送装置包括LDPC-CC编码部分，用于将由LDPC-CC编码部分获取的编码数据分类为与LDPC-CC编码部分的一部分中包含1的列的列号相对应的第一编码数据集的分类部分， 排除原型图的CC校验矩阵H和对应于除此之外的列的列号的第二编码数据集，以及用于构造第一和第二编码数据集的传输帧的帧构成部分（控制部分） 被布置在传输帧中的时间或频率不同的位置。
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34.发明申请LOW-DENSITY PARITY CHECK CONVOLUTION CODE (LDPC-CC) ENCODER AND LDPC-CC DECODER 有权低密度奇偶校验调制码（LDPC-CC）编码器和LDPC-CC解码器公开(公告)号：US20100199153A1
公开(公告)日：2010-08-05
申请号：US12668655
申请日：2008-07-11
CPC分类号： H03M13/118 , H03M13/1111 , H03M13/1154 , H03M13/23 , H03M13/235 , H03M13/6362
摘要： It is possible to provide and an LDPC-CC (Low-Density Parity-Check Convolution Codes) encoder and an LDPC-CC decoder which performs an error correction encoding and decoding while reducing the amount of a termination sequence required for encoding/decoding the LDPC-CC encoding/decoding and suppressing degradation of the transmission efficiency. The LDPC-CC encoder (400) includes a weight control unit (470) which stores a weight pattern (475) based on an LDPC-CC inspection matrix (100); and a weight pattern (476) based on a check matrix (300) obtained by deforming an LDPC-CC inspection matrix (100). The weight control unit (470) controls a weight to be multiplied onto the outputs of a plurality of shift registers (410-1 to 410-M, 430-1 to 430-M) by using the weight pattern (475) when the input bit is an information sequence, and using a weight pattern (476) which makes a weight value to be multiplied by an inspection bit v2,t to be 0 when the input bit is a termination sequence.
摘要翻译： 可以提供LDPC-CC（低密度奇偶校验卷积码）编码器和LDPC-CC解码器，该LDPC-CC解码器在减少LDPC编码/解码所需的终止序列的量的同时进行纠错编码和解码 -CC编码/解码并抑制传输效率的降低。 LDPC-CC编码器（400）包括：权重控制单元（470），其基于LDPC-CC检查矩阵（100）存储权重模式（475）; 以及基于通过使LDPC-CC检查矩阵（100）变形而获得的校验矩阵（300）的权重模式（476）。 权重控制单元（470）通过使用加权模式（475）来控制要乘以多个移位寄存器（410-1至410-M，430-1至430-M）的输出的权重 位是信息序列，并且当输入比特是终止序列时，使用使加权值乘以检查比特v2的加权模式（476），t为0。
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公开(公告)号：US20110087948A1
公开(公告)日：2011-04-14
申请号：US12994367
申请日：2009-07-02
申请人： Yutaka Murakami , Shutai Okamura
发明人： Yutaka Murakami , Shutai Okamura
IPC分类号： H03M13/00
CPC分类号： H04L1/0041 , H03M13/1154 , H03M13/17 , H03M13/2703 , H03M13/2707 , H03M13/353 , H03M13/356 , H03M13/373 , H03M13/3761 , H03M13/6306 , H03M13/6356 , H04L1/00 , H04L1/08
摘要： A loss correction encoding device having an improved capability of loss correction using LDPC-CC is disclosed. In the loss correction encoding device (120), a rearranging unit (122) rearranges information data contained in n information packets according to the constraint length Kmax and the encoding rate (q−1)/q of a cheek polynomial of the loss correction code used in a loss correction encoding unit (123). Specifically, the rearranging unit (122) rearranges the information data in such a way that continuous Kmax×(q−1) pieces of information data after rearrangement are contained in different information packets. The rearranging unit (122) distributes the information data to information blocks from n information packets (n satisfies formula (1)). Kmax×(q−1)≦n (1)
摘要翻译： 公开了一种具有改进的使用LDPC-CC的损失校正能力的损失校正编码装置。 在丢失校正编码装置（120）中，重排单元（122）根据约束长度Kmax和丢失校正码的颊多项式的编码率（q-1）/ q重新排列包含在n个信息包中的信息数据 用于损失校正编码单元（123）。 具体地说，重新布置单元（122）重新排列信息数据，使得重排后的连续的Kmax×（q-1）个信息数据被包含在不同的信息包中。 重新布置单元（122）将信息数据分配给来自n个信息包（n满足公式（1））的信息块。 Kmax×（q-1）＆nlE; n（1）
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公开(公告)号：US20110002421A1
公开(公告)日：2011-01-06
申请号：US12882989
申请日：2010-09-15
IPC分类号： H04L27/06
CPC分类号： H04L27/38 , H04B7/04 , H04L25/03184 , H04L25/067 , H04L2025/0342 , H04L2025/03426
摘要： It is possible to demodulate a plurality of modulated signals transmitted from a plurality of antennas by using a comparatively small-size circuit with a preferable error ratio characteristic. Partial bit judgment units (509, 512) demodulates partial bits of the 64QAM-modulated signal by modifying which of the bits in the 6-bit strings constituting a symbol is to be demodulated depending on in which region of the IQ plane the reception signal point exists. This improves the partial bit error characteristic judged by the partial bit judgment units (509, 512), which in turn improves reliability of the reduced candidate signal point for use by a likelihood detection unit (518). As a result, it is possible to improve the error ratio characteristic of the final reception digital signals (322, 323).
摘要翻译： 可以通过使用具有优选误差比特性的较小尺寸的电路来解调从多个天线发送的多个调制信号。 部分位判断单元（509,512）通过根据IQ平面的哪个区域修改构成符号的6位串中的哪个位要解调64QAM调制信号的部分位，接收信号点 存在 这改善了由部分比特判断单元（509,512）判断的部分比特误差特性，这又提高了可靠性检测单元（518）使用的缩减候补信号点的可靠性。 结果，可以提高最终接收数字信号（322,323）的误差比特性。
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公开(公告)号：US07676719B2
公开(公告)日：2010-03-09
申请号：US11994624
申请日：2006-07-04
CPC分类号： H04L1/0041 , H03M13/13 , H03M13/255 , H03M13/2721 , H03M13/2909 , H04L1/0003 , H04L1/0057 , H04L1/0071 , H04L1/0656 , H04L5/0023
摘要： A transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased. There are included an encoding part (11) that subjects transport data to a block encoding process to form block encoded data; a modulating part (15) that modulates the block encoded data to form data symbols; and an arranging (interleaving) part (12) that arranges (interleaves) the block encoded data in such a manner that the intra-block encoded data of the encoded blocks, which include their respective single different data symbol, get together, and then supplies the arranged (interleaved) block encoded data to the modulating part (15). In this way, there can be provided a transmitter apparatus (10) wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased.
摘要翻译： 一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。 包括编码部分（11），其对传输数据进行块编码处理以形成块编码数据; 调制部分（15），其对所述块编码数据进行调制以形成数据符号; 以及排列（交织）部分（12），其以使得包括它们各自的单个不同数据符号的编码块的块内编码数据在一起的方式布置（交织）块编码数据，然后提供 将经排列（交错）块编码的数据传送到调制部分（15）。 以这种方式，可以提供一种发射机装置（10），其中即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。
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公开(公告)号：US20090044069A1
公开(公告)日：2009-02-12
申请号：US11994624
申请日：2006-07-04
CPC分类号： H04L1/0041 , H03M13/13 , H03M13/255 , H03M13/2721 , H03M13/2909 , H04L1/0003 , H04L1/0057 , H04L1/0071 , H04L1/0656 , H04L5/0023
摘要： A transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased. There are included an encoding part (11) that subjects transport data to a block encoding process to form block encoded data; a modulating part (15) that modulates the block encoded data to form data symbols; and an arranging (interleaving) part (12) that arranges (interleaves) the block encoded data in such a manner that the intra-block encoded data of the encoded blocks, which include their respective single different data symbol, get together, and then supplies the arranged (interleaved) block encoded data to the modulating part (15). In this way, there can be provided a transmitter apparatus (10) wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased.
摘要翻译： 一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。 包括编码部分（11），其对传输数据进行块编码处理以形成块编码数据; 调制部分（15），其对所述块编码数据进行调制以形成数据符号; 以及排列（交织）部分（12），其以使得包括它们各自的单个不同数据符号的编码块的块内编码数据在一起的方式布置（交织）块编码数据，然后提供 将经排列（交错）块编码的数据传送到调制部分（15）。 以这种方式，可以提供一种发射机装置（10），其中即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。
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公开(公告)号：US20100104044A1
公开(公告)日：2010-04-29
申请号：US12532165
申请日：2008-03-21
CPC分类号： H04L27/2628 , H04L27/2614
摘要： Provided is a radio transmission device (100) which can flexibly cope with a request for assuring an error ratio feature during a high transmission rate, a request for increasing a cell coverage, or the like. The radio transmission device (100) includes a first subcarrier modulation unit (104) which forms a first subcarrier modulation signal obtained by converting a plurality of modulation signals into a frequency region; a second subcarrier modulation unit (105) which forms a second subcarrier modulation signal obtained by parallel conversion of a plurality of signals; an IFFT unit (111) which forms an OFDM signal by performing inverse Fourier transform on the first and the second subcarrier modulation signal; and a subcarrier mapping unit (110) which controls allocation of the first and the second subcarrier modulation signals.
摘要翻译： 提供一种无线传输装置（100），其可以灵活地应对在高传输速率期间确保错误率特征的请求，增加小区覆盖的请求等。 无线发送装置（100）具有形成通过将多个调制信号变换为频率区域而获得的第一副载波调制信号的第一副载波调制部（104） 形成通过并行转换多个信号而获得的第二子载波调制信号的第二副载波调制单元（105） IFFT单元（111），通过对第一和第二副载波调制信号进行逆傅立叶变换来形成OFDM信号; 以及控制第一和第二副载波调制信号的分配的副载波映射部（110）。
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公开(公告)号：US20070224953A1
公开(公告)日：2007-09-27
申请号：US10599857
申请日：2005-03-31
IPC分类号： H04B7/08
CPC分类号： H04B7/061 , H04B7/0802
摘要： It is an object of the invention to provide a wireless communication system capable of decreasing the effect of radio interference on a different wireless station using the same frequency band and preventing information from leaking to a different wireless station while ensuring the transmit quality of a wireless channel used between specific wireless stations according to a simple configuration in a quasi-static fading environment of wireless communications. A transmit station 101 selects one optimum antenna from among antennas based on quality information of a transmission path 104 and transmits a packet to a receive station 102 from the selected antenna. The receive station 102 receives the packet from the transmit station 101 at one antenna selected from among antennas and switches the currently selected antenna to a different antenna. The receive station 102 transmits a response packet to the received packet to the transmit station 101 from the antenna to which the current antenna is switched. The transmit station 101 receives the response packet at each of the antennas, selects the antenna with the best receive quality as a packet transmit antenna, and transmits a packet to the receive station 102 from the selected antenna. Then, the processing is repeated.
摘要翻译： 本发明的一个目的是提供一种无线通信系统，能够减少无线电干扰对使用相同频带的不同无线站的影响，并且防止信息泄漏到不同的无线站，同时确保无线信道的传输质量 根据无线通信的准静态衰落环境中的简单配置在特定无线站之间使用。 发送站101基于传输路径104的质量信息从天线中选择一个最佳天线，并从所选择的天线向接收站102发送分组。 接收站102从天线中选择的一个天线从发射台101接收分组，并将当前选择的天线切换到不同的天线。 接收站102从当前天线被切换到的天线向接收到的分组发送响应分组给发射台101。 发送台101在每个天线接收响应分组，选择具有最佳接收质量的天线作为分组发送天线，并从所选择的天线向接收站102发送分组。 然后，重复处理。
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