公开(公告)号：US08750325B2

公开(公告)日：2014-06-10

申请号：US13480300

申请日：2012-05-24

Applicant: Kenichi Miyoshi

Inventor： Kenichi Miyoshi

IPC: H04J3/16

CPC classification number: H04B7/0632 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0613 ,  H04B7/0667 ,  H04B7/0671 ,  H04B7/0673 ,  H04B7/0697 ,  H04B7/0842 ,  H04L1/0006 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0618 ,  H04L1/1657 ,  H04L1/1812 ,  H04L1/1893

Abstract: Data streams stored in buffers are modulated by modulation sections. Multipliers multiply the signals output from the modulation sections by weights output from a weight control section. The signals output from the multipliers are added up by addition sections, subjected to radio transmission processing by transmission radio sections and sent through antennas. A buffer control section controls the buffers based on a retransmission count output from a retransmission count detection section. The weight control section outputs weights different from weights at the time of previous transmission to the multipliers every time data is retransmitted. This allows a diversity gain at the time of data retransmission to be increased even if a time variation of the propagation path environment for radio signals is slow.

Abstract translation: 存储在缓冲器中的数据流由调制部分调制。 乘数将从调制部分输出的信号乘以重量控制部分的重量输出。 从乘法器输出的信号由加法部分相加，经过无线电传送部分的无线电传输处理并通过天线发送。 缓冲器控制部分基于从重传计数检测部分输出的重传计数来控制缓冲器。 每当重发数据时，权重控制部分将与先前发送时的权重不同的权重输出到乘法器。 即使无线电信号的传播路径环境的时间变化较慢，也能够提高数据重发时的分集增益。

公开(公告)号：US08630368B2

公开(公告)日：2014-01-14

申请号：US13538839

申请日：2012-06-29

Applicant: Akihiko Nishio ,  Kenichi Miyoshi

Inventor： Akihiko Nishio ,  Kenichi Miyoshi

IPC: H04L27/00

CPC classification number: H04L25/03159 ,  H04L1/0013 ,  H04L1/0067 ,  H04L5/003 ,  H04L5/0037 ,  H04L5/0044 ,  H04L27/0008 ,  H04L27/2636 ,  H04W52/16 ,  H04W52/346

Abstract: There is disclosed a radio transmission device capable of improving the throughput. The radio transmission device transmits a first signal and a second signal which are different from each other. In the radio transmission device, an FFT unit subjects first data to an FFT process. A sub-carrier allocation unit maps the first data which has been subjected to the FFT process and the second data into different frequencies. An IFFT unit subjects the mapped signal to the IFFT transform. A transmission radio processing unit transmits the signal which has been subjected to the IFFT processing, with a single carrier.

Abstract translation: 公开了能够提高吞吐量的无线传输装置。 无线发送装置发送彼此不同的第一信号和第二信号。 在无线发送装置中，FFT单元使第一数据进行FFT处理。 子载波分配单元将经过FFT处理的第一数据和第二数据映射到不同的频率。 IFFT单元对映射的信号进行IFFT变换。 发送无线电处理单元用单个载波发送已进行了IFFT处理的信号。

公开(公告)号：US08570910B2

公开(公告)日：2013-10-29

申请号：US12997228

申请日：2009-06-19

Applicant: Takashi Iwai ,  Katsuhiko Hiramatsu ,  Kenichi Miyoshi ,  Yoshihiko Ogawa ,  Tomofumi Takata

Inventor： Takashi Iwai ,  Katsuhiko Hiramatsu ,  Kenichi Miyoshi ,  Yoshihiko Ogawa ,  Tomofumi Takata

IPC: H04L12/16

CPC classification number: H04L5/0044 ,  H04L5/0007 ,  H04L5/006 ,  H04L27/2614

Abstract: In DFT-s-OFDM, disclosed are a wireless transmission apparatus and wireless transmission method whereby freedom of allocation of frequencies is secured, while increases of CM are avoided. An SD number determination unit (152) determines an SD number based on the channel quality information of a mobile station and a threshold value that is set by a threshold value setting unit (151). A transmission bandwidth determination unit (153) determines the transmission bandwidth necessary for transmission of the transmission data. An allocation commencement position determination unit (154) determines the position for commencement of allocation of transmission data. If the SD number is equal to or more than the threshold value, a divided bandwidth determination unit (155) sets all the divided bandwidths to equal values and a frequency interval determination unit (156) sets all the frequency intervals to equal values.

Abstract translation: 在DFT-s-OFDM中，公开了一种无线传输装置和无线传输方法，由此可以确保频率分配的自由度，同时避免CM的增加。 SD号码确定单元（152）基于移动站的信道质量信息和由阈值设置单元（151）设置的阈值来确定SD号码。 传输带宽确定单元（153）确定传输数据所需的传输带宽。 分配开始位置确定单元（154）确定开始分发发送数据的位置。 如果SD数等于或大于阈值，则划分带宽确定单元（155）将所有分割带宽设置为相等值，并且频率间隔确定单元（156）将所有频率间隔设置为相等的值。

公开(公告)号：US08452229B2

公开(公告)日：2013-05-28

申请号：US12280966

申请日：2007-02-27

Applicant: Ayako Horiuchi ,  Kenichi Miyoshi ,  Hiroaki Morino

Inventor： Ayako Horiuchi ,  Kenichi Miyoshi ,  Hiroaki Morino

IPC: H04B3/36

CPC classification number: H04B7/155 ,  H04L1/0041 ,  H04L1/0066 ,  H04L1/0077 ,  H04L2001/0097

Abstract: Provided is a relay transmission method capable of obtaining the diversity effect even when a relay station has detected an error in a relay signal when performing communication between a base station and a mobile station via a relay station. In the relay station used in this method, a decoding unit (104) performs error-correction-decoding of a systematic bit by performing repeated decoding such as a turbo decoding by using a parity bit and obtains a decoding result formed by a systematic bit after the error-correction-decoding. An error judging unit (105) judges whether the decoded result has an error by using CRC (Cyclic Redundancy Check). An encoding unit (106) performs error-correction-encoding of the decoded result and obtains a systematic bit after error-corrected-encoded and a parity bit. A selection unit (107) selects the decoded result inputted from the decoding unit (104) or the bit string inputted from the encoding unit (106) according to the judgment result obtained by the error judging unit (105) and outputs it to a modulation unit (108).

Abstract translation: 提供了一种即使当中继站经由中继站在基站和移动站之间进行通信时检测到中继信号中的错误也能够获得分集效应的中继传输方法。 在该方法中使用的中继站中，解码单元（104）通过使用奇偶校验位进行turbo解码等重复解码来对系统比特进行纠错解码，并获得由系统比特形成的解码结果 纠错解码。 错误判定单元（105）通过使用CRC（循环冗余校验）判断解码结果是否具有错误。 编码单元（106）对解码结果执行纠错编码，并获得纠错编码后的系统比特和奇偶校验位。 选择单元（107）根据由错误判定单元（105）获得的判断结果从编码单元（104）输入的解码结果或从编码单元（106）输入的位串中选择输出，并将其输出到调制 单元（108）。

公开(公告)号：US08422592B2

公开(公告)日：2013-04-16

申请号：US13369149

申请日：2012-02-08

Applicant: Kenichi Miyoshi ,  Atsushi Matsumoto

Inventor： Kenichi Miyoshi ,  Atsushi Matsumoto

IPC: H04L27/00 ,  H03K9/00

CPC classification number: H04L27/2626 ,  H04L1/0071 ,  H04L1/08 ,  H04L27/2602 ,  H04L27/2647 ,  H04L27/28 ,  H04L27/32 ,  H04L27/34 ,  H04L27/3488 ,  H04L27/362

Abstract: A duplicating section duplicates a bit sequence to be input, and a 16QAM section modulates a bit sequence of a duplicating source to form a symbol, a 16QAM section modulates the duplicated bit sequence to form a symbol, an S/P section parallel converts the symbol sequence input in series, an S/P section parallel converts the symbol sequence input in series, and an IFFT section 15 provides IFFT processing to the input symbol sequence. Since each of multiple same bits duplicated by the duplicating section is included in a different symbol, each of the multiple same bits is allocated to each of multiple subcarriers each having a different frequency by IFFT processing. As a result, a multicarrier signal including the multiple same bits each having a different frequency is generated.

Abstract translation: 复制部分复制要输入的比特序列，并且16QAM部分调制复制源的比特序列以形成符号，16QAM部分调制复制比特序列以形成符号，S / P部分并行转换符号 序列输入串联，S / P部分并行转换串联输入的符号序列，IFFT部分15向输入符号序列提供IFFT处理。 由于由复制部分复制的多个相同位中的每一个被包括在不同的符号中，所以通过IFFT处理分配具有不同频率的多个子载波中的每一个的多个相同比特中的每一个。 结果，产生了包括具有不同频率的多个相同位的多载波信号。

公开(公告)号：US08401100B2

公开(公告)日：2013-03-19

申请号：US13316249

申请日：2011-12-09

Applicant: Kenichi Miyoshi ,  Akihiko Nishio ,  Daichi Imamura

Inventor： Kenichi Miyoshi ,  Akihiko Nishio ,  Daichi Imamura

IPC: H04K1/10

CPC classification number: H04L27/2647 ,  H04B7/0842

Abstract: A wireless receiving apparatus capable of efficiently removing interference signals in a multicarrier communication. In a mobile station incorporating this wireless receiving apparatus, a selecting part selects a plurality of the same symbols in accordance with a mapping pattern established at the time of generating OFDM symbols in a base station. A correlation value calculating part determines correlation values between the subcarriers of the same symbols to generate an R-matrix, and further determines an inverse matrix of the R-matrix. An MMSE processing part performs an MMSE processing to determine a weight from both a P-vector received from a channel estimating part and the inverse matrix of the R-matrix received from the correlation value calculating part. Multipliers multiply each of the symbols selected by the selecting part by the weight determined by the MMSE processing part. A combining part combines the symbols as multiplied by the weight.

Abstract translation: 一种能够有效地去除多载波通信中的干扰信号的无线接收装置。 在包含该无线接收装置的移动台中，选择部根据在基站中生成OFDM符号时所建立的映射模式来选择多个相同符号。 相关值计算部分确定相同符号的子载波之间的相关值以产生R矩阵，并进一步确定R矩阵的逆矩阵。 MMSE处理部分执行MMSE处理以从从信道估计部分接收的P矢量和从相关值计算部分接收的R矩阵的逆矩阵确定权重。 乘法器将由选择部分选择的每个符号乘以由MMSE处理部分确定的权重。 组合部分将符号乘以重量。

公开(公告)号：US08369806B2

公开(公告)日：2013-02-05

申请号：US11908093

申请日：2006-03-10

Applicant: Kenichi Miyoshi ,  Akihiko Nishio ,  Takashi Iwai ,  Sadaki Futagi ,  Katsuhiko Hiramatsu ,  Daichi Imamura ,  Takashi Aramaki

Inventor： Kenichi Miyoshi ,  Akihiko Nishio ,  Takashi Iwai ,  Sadaki Futagi ,  Katsuhiko Hiramatsu ,  Daichi Imamura ,  Takashi Aramaki

IPC: G06F3/033

CPC classification number: H04L27/2666 ,  H04L25/03159 ,  H04L27/2607 ,  H04L27/2646 ,  H04L27/2647 ,  H04L27/2662

Abstract: A radio receiver apparatus that can effectively utilize GI to improve the reception quality. In this apparatus, a data extracting part (104) extracts a data portion of a direct wave from a signal subjected to a radio reception process by a received RF part (102). A GI extracting part (107) extracts, from the signal subjected to the radio reception process by the received RF part (102), GI having a length determined by an extracted GI length deciding part (106). The extracted GI is adjusted by a data position adjusting part (108) such that its rear end coincides with the read end of the extracted data portion. A combining part (109) combines the extracted data portion with the GI the data position of which has been adjusted. The combined signal is then supplied to a frequency axis equalizing part (110), which equalizes the signal distortions of the combined signal on the frequency axis.

Abstract translation: 能够有效地利用GI来提高接收质量的无线接收装置。 在该装置中，数据提取部（104）从接收到的RF部（102）的无线接收处理的信号中提取直接波的数据部。 GI提取部分（107）从接收到的RF部分（102）的经过无线电接收处理的信号中提取具有由提取的GI长度确定部分（106）确定的长度的GI。 提取的GI由数据位置调整部（108）调整，使得其后端与提取的数据部分的读取端一致。 组合部分（109）将提取的数据部分与其数据位置已被调整的GI组合。 然后将组合的信号提供给频率轴均衡部分（110），其使得频率轴上的组合信号的信号失真均衡。

公开(公告)号：US20130022080A1

公开(公告)日：2013-01-24

申请号：US13605812

申请日：2012-09-06

Applicant: Atsushi Matsumoto ,  Kenichi Miyoshi ,  Akihiko Nishio

Inventor： Atsushi Matsumoto ,  Kenichi Miyoshi ,  Akihiko Nishio

IPC: H04B1/06

CPC classification number: H04L5/0016 ,  H04B1/692 ,  H04L5/0028 ,  H04L5/0044 ,  H04L5/006 ,  H04L5/0064 ,  H04L27/0008 ,  H04L27/3405

Abstract: A radio transmission apparatus performs communications with high transmission efficiency. In this apparatus, a modulator modulates data and outputs to a first spreader. A second modulator modulates data under a modulation scheme having a higher M-ary number than the first modulator and outputs the modulated data to a second spreader. The first spreader spreads the data and outputs the spread data to a frequency domain mapping section. The second spreader spreads the data and outputs the spread data to a time domain mapping section. A frequency domain mapping section maps chips with spread data on subcarriers in the frequency domain and outputs the data with chips mapped on subcarriers to an IFFT section. The time domain mapping section maps chips with spread data on subcarriers in the time domain and outputs the data with chips mapped on subcarriers to the IFFT section.

Abstract translation: 无线发送装置以高传输效率进行通信。 在该装置中，调制器调制数据并将其输出到第一扩展器。 第二调制器在具有比第一调制器更高的M值的调制方案下调制数据，并将调制的数据输出到第二扩展器。 第一扩展器扩展数据并将扩展数据输出到频域映射部分。 第二扩展器扩展数据并将扩展数据输出到时域映射部分。 频域映射部将具有频域上的子载波的扩展数据的芯片进行映射，并将具有映射在子载波上的码片的数据输出到IFFT部。 时域映射部将具有在时域中的子载波上的扩展数据的芯片映射，并将与副载波对应的芯片的数据输出到IFFT部。

公开(公告)号：US08345619B2

公开(公告)日：2013-01-01

申请号：US13357425

申请日：2012-01-24

Applicant: Kenichi Kuri ,  Akihiko Nishio ,  Masaru Fukuoka ,  Kenichi Miyoshi

Inventor： Kenichi Kuri ,  Akihiko Nishio ,  Masaru Fukuoka ,  Kenichi Miyoshi

IPC: H04B7/216 ,  H04W4/00 ,  G08C17/00

CPC classification number: H04W72/0406 ,  H04B7/0619 ,  H04B7/12 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0071 ,  H04L5/0094 ,  H04L25/0228 ,  H04W28/06 ,  H04W48/08 ,  H04W72/042 ,  H04W72/0453 ,  H04W88/08

Abstract: Provided is a base station capable of suppressing increase of overhead of allocation result report in frequency scheduling in multi-carrier communication and obtaining a sufficient frequency diversity effect. In the base station, encoding units (101-1 to 101-n) encode data (#1 to #n) to mobile stations (#1 to #n), modulation units (102-1 to 102-n) modulate the encoded data so as to generate a data symbol, a scheduler (103) performs frequency scheduling according to a CQI from each mobile station so as to uniformly allocate data to the respective mobile stations for a part of RB extracted from a plurality of RB, and an SCCH generation unit (105) generates control information (SCCH information) to report the allocation result in the scheduler (103) to the respective mobile stations.

Abstract translation: 提供一种能够抑制多载波通信中的频率调度中的分配结果报告的开销增加并获得足够的频率分集效应的基站。 在基站中，编码单元（101-1〜101-n）对移动台（＃1〜＃n）的数据（＃1〜＃n）进行编码，调制部（102-1〜102-n） 数据，以便生成数据符号，调度器（103）根据来自每个移动台的CQI执行频率调度，以便将从多个RB提取的一部分RB的各个移动站均匀地分配数据，以及 SCCH生成单元（105）生成控制信息（SCCH信息），将调度器（103）中的分配结果报告给各移动站。

公开(公告)号：US08270427B2

公开(公告)日：2012-09-18

申请号：US12511854

申请日：2009-07-29

Applicant: Kenichi Miyoshi

Inventor： Kenichi Miyoshi

IPC: H04B7/216

CPC classification number: H04L5/0021 ,  H04L5/0017 ,  H04L25/03343

Abstract: In order to improve reception performance, while reducing the arithmetic amount of a receiver apparatus in a multi-carrier CDMA system, different weightings are performed for the respective spread codes (chips) included in subcarriers in addition to performing weightings for the respective subcarriers.

Abstract translation: 为了提高接收性能，在减少多载波CDMA系统中的接收机装置的运算量的同时，除了对各个子载波进行加权之外，还对包括在副载波中的各个扩展码（码片）执行不同的加权。